Dual power switch and assembly detection method thereof

Abstract

The present application relates to the technical field of power distribution equipment, and more particularly to a dual power switch and an assembling and detecting method thereof. The switch comprises a cover, a base plate, multiple groups of loop conductive components, a synchronous execution mechanism, an operating mechanism, an observation window and an insulation separation component. The mounting surface of the base plate constitutes a unified tolerance positioning reference for the multiple groups of loop conductive components; the insulation separation component is detachably sealed in the observation window of the cover and extends into the loop execution area to separate adjacent components and form independent insulation spaces. The present application improves the installation consistency of the multiple groups of loops through the unified tolerance positioning reference; meanwhile, the insulation separation component can enable visual observation and calibration of the key opening and closing area through the observation window after being detached, thereby effectively improving the synchronous switching consistency and operation reliability of the multiple groups of loops.

Description

Technical Field

[0001] The present invention relates to the technical field of power distribution equipment, and in particular to a dual-power switch and an assembly detection method therefor. Background Art

[0002] Dual-power switches are generally used in electrical cabinets, distribution boxes and other low-voltage power distribution equipment, and are configured to switch between two power supplies and a load circuit, so as to realize power supply conversion and maintain continuous power supply on the load side when one power supply is abnormal, outage or under maintenance. Such products generally comprise multiple sets of conductive circuits corresponding to a first power side, a second power side and a load side, as well as an actuating mechanism and an operating mechanism that are linked and matched with each set of conductive circuits. To meet the requirements of external wiring, internal transmission and operation concurrently, existing dual-power switches generally form a front-back arrangement from an external connection side to an operation side, wherein multiple sets of conductive circuits are generally arranged on a side close to external wiring, while the actuating mechanism and the operating mechanism are arranged on the inner side or rear side thereof, and linked switching is realized through a corresponding transmission structure. To meet the requirements of insulation isolation, arc extinguishing and synchronous action of multiple circuits, an insulation housing, a separation structure and an arc extinguishing structure are generally further arranged inside the product.

[0003] In existing dual-power switches, considering process convenience of side-by-side arrangement of multiple sets of circuits, injection molding of insulating parts and step-by-step assembly, a plurality of separately arranged mounting pieces, mounting plates or supporting pieces are generally adopted to install conductive pieces of each set of circuits, or components such as an insulating housing and an insulating support are used for combined positioning of the conductive pieces. Although such a mode is convenient for manufacturing and assembly, the relative positions between the sets of conductive pieces are easily affected by processing errors of mounting pieces, molding errors of insulating pieces and assembly accumulated tolerance. The above influence does not necessarily show obvious misalignment, but it will cause differences in the contact position, contact amount or contact pressure between each set of actuating contact pieces and the corresponding power-side conductive pieces, thereby resulting in inconsistent contact states, and may cause problems such as poor contact, local heating or high temperature rise.

[0004] On the other hand, the separation insulation structure and arc extinguishing structure in existing dual-power switches are usually fixed outside the circuit actuating part in the final assembly stage, and some products even adopt an integrated closed structure. Although such a structure can meet the insulation and arc extinguishing requirements during operation, it also blocks the actuating contact pieces and the opening and closing matching area thereof, so that key parts are difficult to be directly observed after assembly is completed. Especially in the factory inspection stage, the prior art can often only rely on local sampling inspection and empirical judgment, or perform inspection by means of disassembling the closed structure, arranging observation ports, destructive disassembly and other methods, which is not only inconvenient for detection, but also easily causes problems such as component damage, repeated assembly and decreased consistency. Summary of the Invention

[0005] (i) The technical problem to be solved by the present invention is that the multiple sets of conductive components of the existing dual power switch are difficult to ensure the precise consistency of the installation position, which leads to the difference in the contact state of each set of actuators; at the same time, the closed isolation structure hinders the direct observation of the key opening and closing area, making it difficult to make intuitive and non-destructive confirmation during assembly verification and factory inspection, ultimately resulting in poor consistency of multi-pole synchronous switching, making it difficult to effectively guarantee the overall manufacturing quality and operational reliability of the dual power switch.

[0006] (II) Technical Solution To address the aforementioned technical problems, this invention provides a dual-power switch, comprising a housing, a substrate, multiple sets of conductive circuit components, a synchronous actuator, an operating mechanism, an observation window, and an insulating separation component; wherein: The substrate, which forms the outer side plate of the cover, has a mounting base surface extending along the length direction; The multiple sets of circuit conductive components are spaced apart on the substrate along the length of the mounting base surface. Each set of circuit conductive components includes a first power supply side conductive component, a load side conductive component, and a second power supply side conductive component that pass through and are fixed to the substrate, as well as an actuating contact component that is electrically connected to the load side conductive component and respectively opens and closes with the first power supply side conductive component and the second power supply side conductive component. The mounting base surface constitutes a unified tolerance positioning reference for the multiple sets of circuit conductive components. The internal space of the housing includes a loop execution area close to the substrate and an operation area away from the substrate; The synchronous actuator is disposed within the loop execution area and is correspondingly disposed with multiple sets of the loop conductive components, and is used to drive multiple sets of the actuator contacts to open and close synchronously. The operating mechanism is located within the operating area and is connected to the synchronous execution mechanism via a transmission connection. The observation window is located on the housing corresponding to the loop execution area; The insulating separation component is detachably enclosed in the observation window and extends into the circuit execution area to separate two adjacent sets of the circuit conductive components and form independent insulating spaces.

[0007] By using the mounting surface of the substrate as a unified tolerance positioning reference for multiple sets of circuit conductive components, the cumulative error of the dimensional chain caused by traditional segmented combination positioning is fundamentally eliminated, ensuring the precise consistency of the installation positions of multiple sets of circuit conductive components. This, in turn, guarantees the high consistency of the contact state of each set of actuator contacts, effectively solving the problem of poor consistency in multi-pole synchronous switching. Simultaneously, by forming a circuit execution area close to the substrate and an operating area far from the substrate inside the housing, the invention enables the multiple sets of circuit conductive components, synchronous actuators, and operating mechanisms to be arranged in layers along the thickness direction inside the housing. This avoids the problems of excessive structural expansion and loose internal arrangement caused by traditional horizontal parallel stacking, thus helping to reduce the horizontal space occupied by the entire machine and improve the utilization rate of internal space. Furthermore, the invention opens observation windows on the housing corresponding to the circuit execution area and forms an independent insulating space with a detachable insulating partition component. This breaks the visual obstruction of the traditional closed isolation structure. After removing the insulating partition component, the key opening and closing mating areas can be observed intuitively, without obstruction, and non-destructively, greatly facilitating assembly verification and factory inspection, thereby comprehensively ensuring the overall manufacturing quality and operational reliability of the dual power switch. According to one embodiment of the present invention, in each group of the circuit conductive components, the first power supply side conductive element, the load side conductive element and the second power supply side conductive element are arranged at intervals in sequence along a direction perpendicular to the arrangement direction of the plurality of groups of the circuit conductive components; The actuator includes a first contact head and a second contact head. The first contact head is engaged with the first power supply side conductive element, and the second contact head is engaged with the second power supply side conductive element. Both the first contact head and the second contact head are electrically connected to the load side conductive element. The synchronous actuator includes a first synchronous drive shaft and a second synchronous drive shaft extending along the arrangement direction of the multiple sets of the circuit conductive components. The first synchronous drive shaft is connected to multiple sets of the first contact heads through multiple first transmission components to synchronously drive the multiple sets of the first contact heads to move. The second synchronous drive shaft is connected to multiple sets of the second contact heads through multiple second transmission components to synchronously drive the multiple sets of the second contact heads to move.

[0008] By sequentially and alternately arranging the first power-side conductive component, the load-side conductive component, and the second power-side conductive component in each group of circuit conductive components, and by having the first and second contacts of the actuator engage with the power-side conductive components on both sides and be connected to the load-side conductive component, a double-sided switching structure is formed around the load side in each group of circuits. Simultaneously, by combining the first and second synchronous drive shafts to drive the movement of multiple sets of contacts on the corresponding sides, the opening and closing actions of the two power supplies are controlled separately in the transmission structure and synchronously linked among multiple groups of circuits. This helps to constrain the opening and closing engagement relationship of multiple groups of circuits under a consistent relative position system, reduce the action differences of multiple sets of actuator contacts during synchronous switching, and facilitate unified control of the stroke of the opening and closing actions on both sides. This improves the consistency and contact reliability of synchronous switching of multiple groups of circuits and reduces the risk of poor contact and localized heating caused by contact engagement deviation.

[0009] According to one embodiment of the present invention, the observation window includes a first observation window and a second observation window formed in the cover and located inside the substrate, the first observation window and the second observation window being disposed opposite to each other and respectively located on opposite sides of the plurality of sets of the circuit conductive components; The insulating separation assembly includes multiple sets of insulating separators that correspond one-to-one with the multiple sets of the circuit conductive assemblies. The multiple sets of insulating separators are arranged side by side along the arrangement direction of the multiple sets of the circuit conductive assemblies to jointly cover the first observation window and the second observation window. Each set of insulating separators includes a first separator cavity that is detachably covered at the corresponding part of the first observation window and extends into the loop execution area, and a second separator cavity that is detachably covered at the corresponding part of the second observation window and extends into the loop execution area; The first and second partition cavities mate with the substrate on the side closest to the substrate and together form the independent insulating space for accommodating a set of the circuit conductive components.

[0010] By creating a first and a second observation window opposite each other on the casing, and enclosing them together with multiple sets of insulating separators arranged side by side, the observation windows can form continuous observation channels for each group of circuits, and can also be segmented and closed by modular insulating separators after assembly. Simultaneously, the first and second partition cavities of each insulating separator extend inward and cooperate with the substrate, jointly forming an independent insulating space corresponding to a single group of circuits, making each group of circuits a relatively independent execution unit structurally. This structure, on the one hand, constructs reliable insulation isolation and arc-blocking barriers between adjacent circuits; on the other hand, it enables the independent assembly and disassembly of each set of insulating separators, allowing for partial opening of the target circuit during assembly verification or maintenance, creating an unobstructed observation channel in the double-sided opening and closing area of ​​the corresponding circuit, thus balancing the phase-to-phase insulation requirements and local visualization detection needs during dual-power switch operation.

[0011] According to one embodiment of the present invention, each set of insulating separators further includes two sets of arc-extinguishing components respectively built into the first separator cavity and the second separator cavity, and each set of arc-extinguishing components includes a plurality of arc-extinguishing grids arranged at intervals.

[0012] By embedding two sets of arc-extinguishing components within the first and second partition cavities respectively, the arc-extinguishing structure and the insulating partition form a modular integrated assembly. Thus, during dual-power switching, the arc-extinguishing grids located in the two cavities can effectively guide, cut, and cool the arc generated when the contacts on the first and second power supply sides break, significantly improving the dual-sided electrical breaking capability of multiple circuits. Simultaneously, this modular integrated assembly facilitates simultaneous assembly and disassembly with the insulating partition. When testing the target circuit, the arc-extinguishing components are moved out of the circuit execution area along with the partition cavities, thus completely eliminating the visual obstruction of the contact opening and closing area by the fixed arc-extinguishing grids, effectively ensuring the complete unobstructed access of the open visual inspection channel, and significantly reducing the number of loose parts and assembly steps during the final assembly process.

[0013] According to one embodiment of the present invention, both the first partition cavity and the second partition cavity include two half-shells that are joined together opposite each other; The two semi-shells are provided with a plurality of spaced-apart insertion slots on their respective inner walls; Each arc-extinguishing grid plate has its two ends inserted into the corresponding insertion slots of the two half-shells, so that the two assembled half-shells clamp and fix each arc-extinguishing grid plate.

[0014] By constructing both the first and second partition cavities as separate structures formed by the relative splicing of two half-shells, and by setting multiple spaced insertion slots on the inner walls of the two half-shells respectively, each arc-extinguishing grid plate can be inserted into the corresponding insertion slot before the half-shells are spliced. After the two half-shells are spliced, they clamp and fix each arc-extinguishing grid plate. This reduces the difficulty of forming and assembling the insulating partition with internal cavity slots, and limits the assembly position and spacing of each arc-extinguishing grid plate through the insertion slots, thereby improving the consistency of the arc-extinguishing assembly assembly. Furthermore, the two spliced ​​half-shells can directly clamp and fix each arc-extinguishing grid plate, reducing the need for additional fastening structures, thus improving the modular assembly efficiency of the arc-extinguishing assembly and enhancing the overall stability of the arc-extinguishing assembly and the insulating partition.

[0015] According to one embodiment of the present invention, the plurality of insertion slots in the first partition cavity and the second partition cavity are arranged in a fan-shaped radial pattern; Each of the arc-extinguishing grid plates clamped and fixed in the insertion slot unfolds in a fan shape, and the edge of each of the arc-extinguishing grid plates near the actuating contact member together forms an arc-shaped clearance opening; In the assembled state of the insulating separator, the arc-shaped clearance in the first separator cavity faces and surrounds the opening and closing engagement area of ​​the first contact head and the first power supply side conductive member, and the arc-shaped clearance in the second separator cavity faces and surrounds the opening and closing engagement area of ​​the second contact head and the second power supply side conductive member.

[0016] By arranging the insertion slots and arc-extinguishing grids within the partition cavity in a fan-shaped radial pattern, the edges of each arc-extinguishing grid near the contact collectively form an arc-shaped clearance opening. After assembly, these openings face each other and surround the outer side of the corresponding contact's opening and closing mating area. On one hand, the fan-shaped grid layout combined with the arc-shaped clearance opening adapts to the movement trajectory of the actuator contact, thus preventing mechanical interference between the contact and the arc-extinguishing structure during dynamic opening and closing, ensuring smooth and stable contact operation. On the other hand, this enclosure structure allows the arc-extinguishing grids to be closer to the arc-generating area. When the contact breaks and generates an arc, it facilitates the rapid introduction of the arc into the grid group for segmentation and cooling, effectively shortening the arcing time. This improves the overall arc-extinguishing effect of the corresponding circuit and reduces the erosion damage to the contact caused by the high-temperature arc.

[0017] According to one embodiment of the present invention, the load-side conductive element forms a first end conductive surface and a second end conductive surface at opposite ends along the arrangement direction perpendicular to the multiple sets of the loop conductive components; The first contact head and the second contact head are respectively located on opposite sides of the load-side conductive element, and are rotatably attached to the first end conductive surface and the second end conductive surface, respectively; The load-side conductive component is provided with a first wire connection position for wire connection, and the first contact head and the second contact head are respectively provided with a second wire connection position for wire connection, so that the wire can be connected between the load-side conductive component and the first contact head and between the load-side conductive component and the second contact head, respectively.

[0018] By forming end conductive surfaces corresponding to the first and second contacts at opposite ends of the load-side conductive component, and positioning the first and second contacts on opposite sides of the load-side conductive component and rotating them in contact with the corresponding end conductive surfaces, the movable contacts on both sides can maintain continuous surface contact with the load-side conductive component during the swing switching process, avoiding conduction fluctuations caused by unstable contact at the rotational engagement point. Simultaneously, by reserving first wire connection positions on the load-side conductive component and on the first and second contacts, another conduction path can be formed between the load-side conductive component and the contacts on both sides, thus creating a double conduction guarantee between the load-side conductive component and the first and second contacts, improving the stability and reliability of the conductive connection, and reducing the risk of poor contact and localized overheating.

[0019] According to one embodiment of the present invention, the insulating separation assembly is provided with a clearance notch on the side near the operating area for the first synchronous drive shaft and the second synchronous drive shaft to accommodate and avoid each other; One end of the first synchronous drive shaft and one end of the second synchronous drive shaft are respectively connected to the operating mechanism through a first input transmission component and a second input transmission component.

[0020] By providing an avoidance notch on the side of the insulating separator assembly near the operating area, the necessary accommodation and operating space are provided for the first and second synchronous drive shafts traversing the multi-pole circuit, effectively avoiding mechanical interference between the static insulating component and the dynamic drive shaft. Thus, the insulating isolation structure and the global transmission structure are cleverly decoupled in physical space. When independently plugging and unplugging the insulating separator of the target circuit, there is no need to disassemble the synchronous drive shaft, ensuring the convenience of modular open-type visual inspection. Furthermore, one end of each of the two synchronous drive shafts is connected to the operating mechanism via an input transmission component, constructing a centralized power input architecture. This ensures that the switching power output from the operating mechanism can be stably and directly transmitted to the drive shaft, thereby driving the synchronous response of each pole contact, effectively improving the continuity and reliability of the overall mechanical action of the dual-power switch.

[0021] According to one embodiment of the present invention, the dual power switch further includes a housing frame, the housing frame forming a support skeleton of the cover, and including a connecting beam disposed at a distance from the substrate, the connecting beam being located between the circuit execution area and the operation area; The substrate is provided with a positioning mating part for each group of the circuit conductive components, and the connecting beam is provided with a locking mating part for each group of the circuit conductive components. Each set of insulating spacers spans between the substrate and the connecting beam; Each set of insulating separators has a positioning part that is inserted into and engaged with the corresponding positioning mating part at one end near the substrate, and a locking part that is detachably and fixedly connected with the corresponding locking mating part at one end near the connecting beam. The insertion and mating points of the positioning part and the fixed connection points of the locking part together construct at least three anchoring nodes with misalignment distribution to form a planar stable constraint structure. After the fixed connection of the locking part is released, the insulating separator is given a unidirectional plugging and unplugging freedom to independently detach from the substrate.

[0022] By setting positioning mating parts on the substrate corresponding to the conductive components of each circuit, and setting corresponding locking mating parts on the connecting beam, and by bridging each insulating separator between the substrate and the connecting beam, and by inserting the positioning part into the substrate and detachably fixing it to the connecting beam through the locking part, the insulating separator simultaneously obtains reference positioning on the substrate side and locking support on the connecting beam side in the assembled state. Simultaneously, the misaligned anchoring nodes jointly constructed by the insertion mating part and the fixing connection of the locking part create a stable planar constraint relationship for the insulating separator after assembly. This not only improves the consistency of the insulating separator's assembly position and the structural stability after assembly, but also allows the insulating separator to be independently pulled out in a predetermined direction after the locking part is released, thus enabling single-group assembly / disassembly and localized testing of the target circuit without disassembling the entire machine.

[0023] The present invention also provides an assembly and inspection method for a dual power switch, applicable to the dual power switch described above, the assembly and inspection method comprising the following steps: S1. Using the mounting base surface of the substrate as a unified tolerance positioning reference, multiple sets of the circuit conductive components are assembled on the substrate at intervals along the length direction. S2. The synchronous actuator is configured in the circuit execution area, and the operating mechanism is configured in the operation area and the operating mechanism is connected to the synchronous actuator in a transmission manner, so that the operating mechanism drives the synchronous actuator to drive multiple sets of actuator contacts to open and close synchronously; the insulating separation component is detachably covered by the observation window of the housing and extends into the circuit execution area to separate two adjacent sets of circuit conductive components and form the independent insulating space; S3. When it is necessary to observe the contact status or perform factory testing, unlock the insulation separation component corresponding to the target circuit and pull it out of the observation window so that the actuator of the corresponding circuit and its opening and closing cooperation area with the first power supply side conductor and the second power supply side conductor are in an unobstructed open view through the observation window. S4. In the open and visible state, the synchronous actuator is driven by the operating mechanism to detect and observe the opening and closing state of the actuator contact; after the detection is completed, the insulating separator is reinserted into the circuit execution area and sealed in the observation window to lock and reset.

[0024] This method relies on the aforementioned dual-power switch structure. During the assembly phase, multiple sets of conductive components for each circuit are assembled using a unified tolerance positioning benchmark. After the synchronous actuator, operating mechanism, and insulating separator are assembled, partial open-circuit inspection of the target circuit is achieved through the cooperation of the observation window and the detachable insulating separator. This not only improves the consistency of the assembly of multiple circuits but also allows for intuitive and non-destructive observation and inspection of the opening and closing state of the target circuit without disassembling the entire unit. Furthermore, it quickly restores the independent insulation space of the corresponding circuit after inspection, thus balancing the convenience of assembly verification, factory testing, and subsequent maintenance.

[0025] (III) Beneficial effects of the present invention: The present invention provides a unified tolerance positioning reference for multiple sets of circuit conductive components through the substrate mounting base, and forms a circuit execution area close to the substrate and an operation area away from the substrate inside the housing, so that multiple sets of circuit conductive components, synchronous execution mechanism and operation mechanism can be arranged in sections inside the housing. Combined with the insulating separation component that is detachably sealed to the observation window and extends into the circuit execution area, while ensuring independent insulation separation of adjacent circuits, the relative installation position consistency of multiple sets of circuit conductive components is improved, and the key opening and closing mating area can be visualized and calibrated through the observation window during assembly and testing, thereby improving the consistency of synchronous switching of multiple sets of circuits, reducing the risk of poor contact and local heating, and improving the overall manufacturing quality and operational reliability of dual power switch. Attached Figure Description

[0026] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0027] Figure 1This is a three-dimensional structural diagram of a dual power switch provided in one embodiment of the present invention; Figure 2 This is a three-dimensional structural diagram of a dual power switch that needs to detect when it is turned on, according to an embodiment of the present invention. Figure 3 A schematic diagram of the internal three-dimensional structure of a dual power switch after removing part of the cover, according to an embodiment of the present invention; Figure 4 A three-dimensional structural diagram of the internal structure of the execution area of ​​a dual power switch provided in an embodiment of the present invention; Figure 5 This is a schematic diagram of the three-dimensional structure of the first partition cavity provided in one embodiment of the present invention; Figure 6 This is a schematic diagram of the internal three-dimensional structure of the first partition cavity provided in one embodiment of the present invention; Figure 7 A three-dimensional structural diagram of the insertion slot layout of the first partition cavity provided in an embodiment of the present invention; Figure 8 This is a schematic diagram of the connection structure between the actuator contact and the load-side conductive element according to an embodiment of the present invention.

[0028] Icons: 1. Housing; 11. Execution area; 12. Control area; 13. Observation window; 2. Base plate; 21. Positioning mating part; 3. Multi-circuit conductive assembly; 31. First power supply side conductive component; 32. Load side conductive component; 321. First wire connection position; 33. Second power supply side conductive component; 34. Execution contact component; 341. First contact head; 342. Second contact head; 343. Second wire connection position; 4. Frame; 41. Connecting beam; 411. Locking mating part; 5. Synchronous execution mechanism; 51. 511 First synchronous drive shaft; 52 Second synchronous drive shaft; 521 Second transmission component; 6 Operating mechanism; 7 Insulation separation assembly; 71 Insulation separation component; 711 First separation cavity; 712 Second separation cavity; 713 Insertion slot; 714 Vent hole; 715 Clearance notch; 7151 Injection molded support component; 716 Positioning part; 717 Locking part; 72 Arc extinguishing assembly; 721 Arc extinguishing grid plate; 81 First input transmission component; 82 Second input transmission component. Detailed Implementation

[0029] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. Unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Specific Implementation

[0030] like Figures 1 to 8 As shown, this embodiment provides a dual-power switch, suitable for installation in electrical cabinets, distribution boxes, or other low-voltage power distribution equipment, used to switch the load circuit between a first power supply side and a second power supply side to meet the needs of continuous power supply or power conversion on the load side. The dual-power switch in this embodiment adopts an in-cabinet installation structure, and its overall structure includes a housing 1, a base plate 2, a frame 4, multiple sets of circuit conductive components 3, a synchronous actuator 5, an operating mechanism 6, and an insulating separation component 7.

[0031] In this embodiment, the dual-power switch can be installed at the operating side opening of the electrical cabinet. The cover 1 is located at the cabinet opening and is fixedly connected to the cabinet, so that part of the switch body faces the outside of the cabinet for easy external operation and observation, while the other part extends into the cabinet and connects to the power circuit and load circuit inside the cabinet. The cover 1 is used to provide external protection and insulation for the internal conductive and transmission components. Its material can be insulating engineering plastics, insulating composite materials, or other insulating materials suitable for low-voltage switch products with sufficient insulation performance and structural strength. In terms of shape, the cover 1 can be rectangular, approximately hexahedral, or other shell structures that can enclose the internal installation space. In this embodiment, it can be understood as a box-like structure that unfolds along the circuit arrangement direction.

[0032] The substrate 2 forms the outer side plate of the housing 1 and serves as the mounting base for multiple sets of conductive circuit components 3. The substrate 2 is generally plate-shaped and can be made of insulating or composite material with high rigidity and installation stability. A mounting base surface extending along its length is formed on the side facing inwards from the housing 1, for the multiple sets of conductive circuit components 3 to be spaced apart along the length. Since all sets of conductive circuit components 3 are mounted on the same mounting base surface, the relative mounting positions between each set of conductive circuit components can be uniformly defined by this mounting base surface, thus providing a stable assembly base for the subsequent synchronous actuator 5 to drive the multiple sets of circuits to achieve synchronous opening and closing.

[0033] The internal space of the housing 1 includes a loop execution area 11 near the substrate 2 and an operating area 12 away from the substrate 2. The loop execution area 11 is mainly used to arrange synchronous execution mechanisms 5 that cooperate with multiple sets of loop conductive components 3, while the operating area 12 is mainly used to arrange operating mechanisms 6. It is not necessary to have a separate partition frame between the loop execution area 11 and the operating area 12. It is sufficient that a front-to-back partition layout corresponding to the substrate 2 can be formed inside the housing 1, and that there is sufficient space for transmission connection between the synchronous execution mechanism 5 and the operating mechanism 6. For example, in some embodiments, the relative positional relationship between the loop execution area 11 and the operating area 12 can be defined by a limiting structure inside the housing 1, a locking structure between the insulating partition component 7 and the housing 1, and a plug-in interlocking structure between adjacent insulating partition components 71. This allows for stable separation, positioning, and enclosure of each set of loop execution areas without the need for a dedicated frame 4 and connecting beam 41.

[0034] In this embodiment, the frame 4 constitutes the supporting skeleton of the housing 1 and includes connecting beams 41 spaced apart from the substrate 2. There are two connecting beams 41, both extending along the arrangement direction of the multiple sets of circuit conductive components 3 and located on opposite sides of the circuit execution area 11. After the two connecting beams 41 are fixedly connected to the frame 4, they together with the substrate 2 define the relative positional relationship between the circuit execution area 11 and the operating area 12, wherein the circuit execution area 11 is located between the substrate 2 and the two connecting beams 41, and the operating area 12 is located on the side away from the substrate 2. The two connecting beams 41 do not completely enclose and separate the circuit execution area 11 and the operating area 12, but rather reserve structural space for the cross-regional transmission connection between the synchronous execution mechanism 5 and the operating mechanism 6, and at the same time provide a supporting foundation for the subsequent assembly, positioning and locking of the insulating separation component 7 on the side of the circuit execution area 11. In other words, in this embodiment, the partitioning relationship between the loop execution area 11 and the operation area 12 can be directly reflected by the relative arrangement between the base plate 2 and the shell 4 and the connecting beam 41, or it can be realized in other embodiments by the matching positioning structure inside the cover 1 and the interlocking and locking relationship of the insulating separation component 7 itself.

[0035] Multiple sets of conductive circuit components 3 are arranged side-by-side along the length of the mounting base surface of the substrate 2. In this embodiment, there are four sets. A space is left between adjacent sets of conductive circuit components to accommodate the insulating separator 71 described later and to meet the insulation spacing requirements. Each set of conductive circuit components includes a first power supply side conductive component 31, a load side conductive component 32, and a second power supply side conductive component 33. All three are inserted from the outer side of the substrate 2 toward the inside of the housing 1 and fixed to the substrate 2. Specifically, each conductive component can adopt a plate-shaped conductive bar or a sheet-shaped conductive component structure. The part located on the outer side of the substrate 2 is used to connect with the external first power supply circuit, load circuit, and second power supply circuit, while the part located on the inner side of the substrate 2 forms a conductive contact portion that cooperates with the actuating contact component 34. After being inserted into the substrate 2, each conductive component can be fixed to the substrate 2 by screwing, riveting, fixing with a pressure plate, or other methods that can achieve axial limiting and circumferential anti-rotation, so that the installation position of each set of conductive components is limited with reference to the same mounting base surface. For each set of circuit conductive components, the first power supply side conductive component 31, the load side conductive component 32, and the second power supply side conductive component 33 are arranged sequentially at intervals along a direction perpendicular to the arrangement direction of the multiple sets of circuit conductive components 3. The load side conductive component 32 is located between the two power supply side conductive components, thereby forming a double-sided switching arrangement around the load side conductive component 32 on the substrate 2 for each set of circuits.

[0036] In this embodiment, the actuating contact 34 is composed of a first contact head 341 and a second contact head 342, which are respectively electrically connected to the load-side conductive member 32. These are two sets of independently arranged movable contacts. The load-side conductive member 32 is located in the middle of each set of circuit conductive components and extends from the substrate 2 towards the circuit actuating area 11 to form an inner connecting section. The first contact head 341 and the second contact head 342 are respectively disposed on the upper and lower sides of this inner connecting section and are rotatably electrically connected to the load-side conductive member 32 through corresponding conductive connectors, thereby ensuring that both the first contact head 341 and the second contact head 342 use the load-side conductive member 32 as their conductive connection base. Accordingly, the first contact head 341 is arranged towards the first power-side conductive member 31, and the second contact head 342 is arranged towards the second power-side conductive member 33, forming two sets of opening and closing relationships independently corresponding to the two power-side conductive members. When the synchronous actuator 5 operates, the first contact 341 moves closer to and further away from the first power supply side conductive element 31 under the drive of the corresponding transmission component, to form a closing contact or a closing separation; the second contact 342 moves closer to and further away from the second power supply side conductive element 33 under the drive of the corresponding transmission component on the other side, to form another set of independent closing contacts or opening separations. Since the first contact 341 and the second contact 342 are located on the upper and lower sides of the load side conductive element 32 respectively, and are respectively set for the two power supply side conductive elements, the two sets of opening and closing engagement areas are spatially separated from each other. This facilitates the subsequent synchronous actuator 5 to drive them separately, and also facilitates the subsequent insulation separator 71 and arc extinguishing assembly 72 to be specifically arranged around the two sets of opening and closing engagement areas.

[0037] Furthermore, the load-side conductive element 32 can adopt an integrally formed copper busbar structure. Its outer part, after passing through the substrate 2 and being fixed, constitutes an external connection section, and its inner part constitutes a connection body located in the circuit execution area 11. The connection body unfolds along the opening and closing direction of the corresponding circuit and forms end conductive surfaces corresponding to the first contact head 341 and the second contact head 342 at opposite ends. The end conductive surface can be a smooth transition conductive surface adapted to the contact swing trajectory. In this embodiment, a continuous transition conductive surface extending along the rotation trajectory of the first contact head 341 and the second contact head 342 is adopted. The first contact head 341 and the second contact head 342 are two sets of movable contact components separately arranged, located on opposite sides of the load-side conductive component 32, and respectively connected to the first transmission component 511 and the second transmission component 521. Driven by the synchronous actuator 5, they swing around their respective rotation centers. During the swinging process, the inner conductive contact surface of the first contact head 341 always presses against the first end conductive surface, and the inner conductive contact surface of the second contact head 342 always presses against the second end conductive surface. The pressure stability of the first contact head 341 and the second contact head 342 is achieved through the built-in spring and the arc-shaped end faces of both, thereby maintaining continuous surface contact and conductivity with the load-side conductive component 32 during contact switching. Figure 8 As shown in the structure, the connection body of the load-side conductive component 32 has a first wire connection position 321 for external wire connection in the middle. The first contact head 341 and the second contact head 342 are respectively provided with a second wire connection position 343 corresponding to the first wire connection position 321. The first wire connection position 321 and the second wire connection position 343 can be screw crimping holes, terminals, terminals, or other structural forms that allow wires to be fixedly connected. In this embodiment, screw-type connection positions are used so that wires can be connected between the load-side conductive component 32 and the first contact head 341, and between the load-side conductive component 32 and the second contact head 342, so as to further form a corresponding conductive connection path in addition to the rotational contact conduction of the end conductive surface.

[0038] In this embodiment, the synchronous actuator 5 is disposed within the loop execution area 11 and is arranged one-to-one with multiple sets of loop conductive components 3 to synchronously drive multiple sets of actuator contacts 34. The synchronous actuator 5 includes a first synchronous drive shaft 51 and a second synchronous drive shaft 52 extending along the arrangement direction of the multiple sets of loop conductive components 3. The first synchronous drive shaft 51 is located on the side corresponding to the first contact head 341, and the second synchronous drive shaft 52 is located on the other side corresponding to the second contact head 342. The two synchronous drive shafts pass through the corresponding multiple sets of actuator units along the arrangement direction of the multiple sets of loop conductive components 3. For each loop, the first synchronous drive shaft 51 is connected to the first contact head 341 of the loop through a corresponding first transmission member 511, and the second synchronous drive shaft 52 is connected to the second contact head 342 of the loop through a corresponding second transmission member 521. Therefore, when the first synchronous drive shaft 51 rotates, multiple first transmission components 511 synchronously drive multiple sets of first contact heads 341 to move; when the second synchronous drive shaft 52 rotates, multiple second transmission components 521 synchronously drive multiple sets of second contact heads 342 to move, thereby establishing opening and closing relationships between the first contact head 341 and the first power supply side conductive component 31, and between the second contact head 342 and the second power supply side conductive component 33 in the same circuit, and realizing synchronous linkage between multiple circuits. In the illustrated embodiment, each first transmission component 511 and second transmission component 521 adopts a linkage-type transmission structure, with one end connected to the shaft end rocker arm or drive arm of the corresponding synchronous drive shaft, and the other end connected to the corresponding movable part of the corresponding contact head, thereby converting the rotation input of the synchronous drive shaft into the opening and closing motion of the corresponding contact head; of course, in other feasible embodiments, the above-mentioned first transmission component 511 and second transmission component 521 can also adopt a lever type, rocker arm type, crank connecting rod type, or other mechanism forms that can achieve equivalent transmission.

[0039] The operating mechanism 6 is located within the operating area 12 and is connected to the synchronous actuator 5 for inputting operating actions to the first synchronous drive shaft 51 and the second synchronous drive shaft 52. The ends of the first synchronous drive shaft 51 and the second synchronous drive shaft 52 closest to the operating area 12 are respectively connected to the operating mechanism 6 via the first input transmission member 81 and the second input transmission member 82. The actions output by the operating mechanism 6 are transmitted to the first synchronous drive shaft 51 via the first input transmission member 81 and to the second synchronous drive shaft 52 via the second input transmission member 82, thereby enabling the operating mechanism 6 to drive the two synchronous drive shafts to operate respectively.

[0040] Meanwhile, the operating mechanism 6 is arranged within the operating area 12 and connected to the corresponding external operating components. It can input driving force manually; for example, it can adopt a handle, lever, rotary knob, push-pull operating component, etc., and transmit the operating input to the first input transmission component 81 and the second input transmission component 82 via a corresponding intermediate linkage mechanism. Alternatively, the operating mechanism 6 can also adopt a motor drive, actuator drive, or other existing switch operating structures as needed, as long as it can provide driving input to the first synchronous drive shaft 51 and the second synchronous drive shaft 52 through the first input transmission component 81 and the second input transmission component 82, respectively.

[0041] An observation window 13 is provided on the housing 1 and corresponds to the circuit execution area 11. It is used to expose the opening and closing engagement area of ​​the corresponding circuit after the insulating separator assembly 7 is removed, so as to perform assembly verification, status observation and testing. The observation window 13 includes a first observation window 13 and a second observation window 13 located inside the substrate 2. The two are arranged opposite each other and correspond to the opposite sides of the multiple sets of circuit conductive components 3, and both extend along the arrangement direction of the multiple sets of circuit conductive components 3. Their opening range at least covers the observation area corresponding to the opening and closing engagement area of ​​the execution contact 34 and the first power side conductive component 31 and the second power side conductive component 33. Correspondingly, after multiple sets of insulating separators 71 are arranged side by side along the arrangement direction of multiple sets of circuit conductive components 3, they can jointly seal the first observation window 13 and the second observation window 13, and form an independent insulating space with the circuit execution area 11 in the assembled state. When it is necessary to observe or test the target circuit, only the insulating separators 71 of the corresponding group can be removed, so that the first observation window 13 and the second observation window 13 of the corresponding part are partially opened, so that the operating position and opening and closing state of the actuator contact 34 can be directly observed from both sides of the corresponding circuit. Thus, the observation window 13 not only constitutes the observation opening on the cover 1, but also provides the basic structure for the group sealing, group disassembly and assembly, and local visualization testing of the insulating separator components 7.

[0042] like Figures 4 to 7As shown, the insulating separator assembly 7 consists of multiple sets of insulating separators 71. These sets of insulating separators 71 are arranged side-by-side along the direction of the multiple sets of circuit conductive assemblies 3. Each set of insulating separators 71 corresponds to one set of circuit conductive assemblies and, after assembly, bridges the base plate 2 and the connecting beam 41, thus forming an independent modular enclosure for the corresponding circuit. Specifically, each set of insulating separators 71 has a cover-shaped structure inserted from the observation window 13 into the circuit execution area 11. Its outer side covers the corresponding parts of the first and second observation windows 13, and its inner side extends into the circuit execution area 11 and surrounds the area where the corresponding circuit's execution contact 34, the first power supply side conductive element 31, and the second power supply side conductive element 33 are located. The insulating separators 71 can be integrally injection molded from an insulating injection molding material with good arc resistance and heat resistance, or they can be a combined structure formed by assembling multiple insulating plates. In this embodiment, an injection-molded insulating shell is used as the main body, and a complete insulating separator 71 is formed through subsequent assembly.

[0043] Each set of insulating separators 71 includes a first separator 711 and a second separator 712, which are respectively disposed corresponding to the opening and closing engagement areas on both sides of the corresponding circuit. In the illustrated embodiment, the first separator 711 corresponds to the opening and closing engagement area of ​​the first contact 341 and the first power supply side conductive member 31, and the second separator 712 corresponds to the opening and closing engagement area of ​​the second contact 342 and the second power supply side conductive member 33. The first separator 711 and the second separator 712 respectively constitute independent enclosures disposed on both sides of the circuit. They can both jointly enclose the corresponding single circuit and cooperate to form a complete independent insulating space in the assembled state, and can also be disassembled and reassembled separately. That is to say, the first separator 711 and the second separator 712 are not required to be disassembled synchronously as an inseparable whole at all times, but can be detached from the corresponding observation window 13 as needed, thereby opening the opening and closing engagement area of ​​the first contact 341 and the first power supply side conductive member 31, or the opening and closing engagement area of ​​the second contact 342 and the second power supply side conductive member 33, respectively. Therefore, when the target circuit needs to be disassembled for inspection, only the corresponding side of the partition cavity can be removed according to the actual inspection location to form a single-sided open visual state; when it is necessary to observe the opening and closing mating areas on both sides at the same time, the first partition cavity 711 and the second partition cavity 712 can also be removed together. In this way, it is ensured that the corresponding circuit can form a complete insulation partition structure in the normal assembly state, and the flexibility of local inspection and targeted disassembly and assembly is improved.

[0044] In terms of specific configuration, both the first partition cavity 711 and the second partition cavity 712 are formed by two relatively joined half-shells. This embodiment uses a method of mating two opposing shell pieces, which together form the first partition cavity 711 and the second partition cavity 712 after being joined. Multiple spaced insertion slots 713 are formed on the inner walls of the two half-shells, and each insertion slot 713 corresponds to the other two shell pieces after they are joined, used to clamp the two ends of the arc-extinguishing grid plate 721. That is, the arc-extinguishing grid plate 721 does not rely on an independent metal frame or special pressure plate for installation, but is first inserted into the corresponding insertion slots 713 of the two half-shells, and then its ends are limited and clamped and fixed by the joining of the two half-shells. The joining and connection between the half-shells can be achieved by snap-fit ​​connection, screw connection, thermal riveting connection, ultrasonic welding, or adhesive bonding, etc. In this embodiment, it is achieved by relatively snap-fitting and cooperating in an overall assembly state to maintain its joined position. Thus, the assembly process of the arc extinguishing assembly 72 is integrated into the formation process of the insulating separator 71 body, thereby reducing the need for separate grid support or additional fasteners.

[0045] Each set of insulating separators 71 contains two sets of arc-extinguishing components 72. One set of arc-extinguishing components 72 is housed within the first separator 711, and the other set is housed within the second separator 712. Each set of arc-extinguishing components 72 consists of multiple spaced arc-extinguishing grid plates 721, with both ends of the grid plates 721 inserted into the corresponding insertion slots 713 of the half-shell. Referring to the illustrated structure, the insertion slots 713 in both the first and second separators 711 are arranged in a fan-shaped radial pattern, thus the fixed arc-extinguishing grid plates 721 also unfold in a fan shape. Each arc-extinguishing grid 721 forms an arc-shaped clearance opening on the side edge closest to the actuating contact 34. Specifically, the arc-shaped clearance opening in the first separating cavity 711 faces and surrounds the outer side of the opening / closing engagement area between the first contact head 341 and the first power supply side conductive element 31. Similarly, the arc-shaped clearance opening in the second separating cavity 712 faces and surrounds the outer side of the opening / closing engagement area between the second contact head 342 and the second power supply side conductive element 33. Thus, the arc-extinguishing grid 721 forms an enclosure structure on the outer side of the corresponding opening / closing engagement area that adapts to the contact movement trajectory. This ensures sufficient clearance space for the first contact head 341 and the second contact head 342 during operation, while also allowing the arc generated during disconnection to be more easily introduced between the arc-extinguishing grids 721 for segmentation and cooling.

[0046] Each set of insulating separators 71 includes an outer cover plate and a lateral enclosure extending from the cover plate into the loop execution area 11. The first separator cavities 711 and 712 are formed within the space defined by the enclosure and the corresponding inner cavity wall. Multiple vent holes 714 are provided through the outer walls of both the first separator cavities 711 and 712, and each vent hole 714 communicates with the interval between adjacent arc-extinguishing grid plates 721 in the corresponding arc-extinguishing assembly 72. Thus, when the actuating contact 34 interrupts the arc with the first power-side conductive member 31 or the second power-side conductive member 33, the high-temperature gas, after being divided and cooled by the arc-extinguishing grid plates 721, can be further discharged outward through the vent holes 714 along the grid plate intervals, thereby forming a directional exhaust path from the interior of the independent insulating space to the outside of the insulating separator 71. The vent 714 can be provided on the top wall, side wall, or the transition area between the top wall and side wall. In this embodiment, the vent 714 is mainly formed in the top wall area near the outer side of the insulating separator 71, so as to facilitate the upward dissipation of gas.

[0047] Considering that the first synchronous drive shaft 51 and the second synchronous drive shaft 52 are located on the side of the insulating separator 71 near the operating area 12, the insulating separator 71 also has a clearance notch 715 on this side. This clearance notch 715 is not a simple opening penetrating the entire insulating separator 71, but rather a clearance area formed by partially cutting away from the insulating separator 71 without disrupting the basic enclosure relationship between the first partition cavity 711 and the second partition cavity 712. This clearance notch provides operating space for the first synchronous drive shaft 51, the second synchronous drive shaft 52, and the first input transmission component 81 and the second input transmission component 82 connected to them. The shape of the clearance notch 715 can be a rectangular clearance groove, an arc-shaped clearance opening, or a stepped clearance structure. In this embodiment, a notch structure is used that is recessed inward from the side of the insulating separator 71 near the operating area 12, and an injection-molded support component 7151 is integrally formed at the lower edge of the notch. The injection-molded support 7151 is located at the partial opening of the clearance notch 715. It primarily provides temporary support for the edges of the notch during the injection molding process of the insulating separator 71 and before its removal after molding, thereby reducing the impact of the partial opening structure on the stability of the injection molding process. After the insulating separator 71 is molded, the injection-molded support 7151 can be cut off or removed, completely opening the clearance notch 715 and thus providing sufficient clearance space for the first synchronous drive shaft 51 and the second synchronous drive shaft 52 in subsequent assembly.

[0048] like Figure 2As shown, the assembly relationship between the insulating separator 71, the substrate 2, and the connecting beam 41 is also specifically illustrated in the structure. The substrate 2 has a positioning mating part 21 corresponding to each group of conductive components in the circuit, and the connecting beam 41 has a locking mating part 411 corresponding to each group of conductive components in the circuit. The insulating separator 71 has a positioning part 716 at one end near the substrate 2 and a locking part 717 at the other end near the connecting beam 41. The positioning part 716 can be implemented using a insert, positioning tongue, positioning post, dovetail slider, etc., and the locking part 717 can be implemented using a snap-fit, pin lug, screw lug plate, or pressure plate locking structure, etc. In this embodiment, the positioning part 716 adopts a positioning insert structure that extends from the end of the insulating separator 71 near the substrate 2 toward the substrate 2. After being inserted into the positioning mating port on the substrate 2, it forms an initial positioning. The locking part 717 adopts a locking lug provided at the end of the insulating separator 71 near the connecting beam 41. A locking hole is formed on the locking lug. A screw passes through the locking hole and connects to the locking mating hole on the connecting beam 41, thereby completing the detachable locking. Since the insertion and mating parts of the positioning insert and the screw fixing parts of the locking lug are spatially misaligned, the insulating separator 71 can be constrained by multiple points on both the substrate 2 side and the connecting beam 41 side after assembly, forming a stable planar positioning relationship. When disassembly is required, it is only necessary to first release the fixed connection between the locking lug and the connecting beam 41, and then pull the insulating separator 71 out from the substrate 2 as a whole along the predetermined pulling direction, so as to achieve the independent removal of a single set of insulating separators 71.

[0049] In summary, in this embodiment, the insulating separator 71 does not merely serve to block the observation window, but simultaneously undertakes multiple functions such as group sealing, construction of independent insulating spaces, integration of the arc-extinguishing component 72, exhaust discharge, transmission avoidance, and detachable positioning and locking. In particular, in this embodiment, the relative positional relationship between each group of insulating separators 71 and the substrate 2, connecting beam 41, first synchronous drive shaft 51, second synchronous drive shaft 52, and corresponding contact opening and closing areas is clearly defined. This allows them to reliably enclose the corresponding circuit in the assembled state and to be quickly and directionally disassembled as a whole in the testing state, thus providing a concrete structural basis for subsequent assembly verification, target circuit testing, and overall machine reset.

[0050] Based on the above structure, the assembly and testing method of this embodiment is as follows: Assembly testing of the dual-power switch can be performed in conjunction with its installation status at the opening on the operating side of the electrical cabinet. First, using the mounting base surface of the substrate 2 as a unified tolerance positioning reference, multiple sets of circuit conductive components 3 are sequentially assembled onto the substrate 2 along its length. Specifically, during assembly, the first power-side conductive component 31, the load-side conductive component 32, and the second power-side conductive component 33 are first inserted into their corresponding mounting positions on the substrate 2, and then fixed using methods such as screw tightening, riveting, or fixing with a pressure plate, ensuring that all sets of circuit conductive components 3 use the same mounting base surface as their positional reference. In this way, after the assembly of each set of circuit conductive components, their relative positional relationship can be uniformly defined by the substrate 2, providing a consistent assembly basis for the synchronous opening and closing of multiple sets of actuator contacts 34.

[0051] After the assembly of multiple sets of circuit conductive components 3 is completed, the synchronous actuator 5 is placed in the circuit execution area 11 between the base plate 2 and the connecting beam 41, and the operating mechanism 6 is placed in the operating area 12. In conjunction with the aforementioned structure, the first synchronous drive shaft 51 and the second synchronous drive shaft 52 extend along the arrangement direction of the multiple sets of circuit conductive components 3. Each set of actuator contacts 34 is connected to the two synchronous drive shafts via corresponding first transmission member 511 and second transmission member 521. The operating mechanism 6 is connected to the first synchronous drive shaft 51 and the second synchronous drive shaft 52 via the first input transmission member 81 and the second input transmission member 82, so that when the operating mechanism 6 operates, it can synchronously drive the multiple sets of actuator contacts 34 to open and close. Next, the insulating separator assembly 7 is inserted through the observation window 13 on the outside of the housing 1, so that each set of insulating separators 71 spans between the base plate 2 and the connecting beam 41. The positioning part 716 engages with the positioning fitting part 21 on the base plate 2, and the locking part 717 connects with the locking fitting part 411 on the connecting beam 41. This allows the first separator cavity 711 and the second separator cavity 712 to extend into the circuit execution area 11, separating the two adjacent sets of circuit conductive components and forming independent insulating spaces. At this point, the dual power switch has completed its normal assembly.

[0052] like Figure 2As shown, when contact condition observation, assembly verification, or factory testing is required, a partial disassembly and inspection can be performed on the target circuit separately, without disassembling the entire machine. Specifically, first, the locking connection between the corresponding insulating separator 71 and the connecting beam 41 of the target circuit is released, and then the corresponding insulating separator 71 is pulled out from the observation window 13 along its predetermined pulling direction. Since the insulating separator 71 itself covers the corresponding parts of the first and second observation windows 13 and extends into the circuit execution area 11 to form an independent cover for the group of circuits, after the insulating separator 71 is removed, the first and second observation windows 13 corresponding to the group of circuits are opened, so that the execution contact 34 in the group of circuits and the opening and closing engagement area between it and the first power supply side conductive element 31 and the second power supply side conductive element 33 are in an unobstructed open and visible state. At this time, the operating position, approach stroke, separation gap, and cooperation with the corresponding power supply side conductive parts of the first contact head 341 and the second contact head 342 can be observed from both sides of the cover 1, thereby directly confirming the actual opening and closing state of the target circuit.

[0053] In the aforementioned open and visible state, the operating force can be input through the operating mechanism 6 to cause the first synchronous drive shaft 51 and the second synchronous drive shaft 52 to drive the corresponding first contact head 341 and second contact head 342 to move, thereby simulating or executing the actual switching process of the dual power supply switch. During the detection process, the closing contact state and opening separation state between the first contact head 341 and the first power supply side conductive element 31 in the target circuit can be observed, as can the corresponding cooperation state between the second contact head 342 and the second power supply side conductive element 33. Combined with the synchronous operation of multiple circuits, the consistency of the target circuit's operation, the smoothness of opening and closing, and the presence of any abnormal interference can be confirmed. If a deviation is found in the cooperation position between the corresponding circuit's actuator contact 34 and the two power supply side conductive elements, it can be directly checked and adjusted in the open state. After the inspection is completed, the corresponding insulating separator 71 is reinserted into the circuit execution area 11 along the original assembly direction, so that its positioning part 716 is re-engaged with the positioning mating part 21 on the substrate 2, and the locking part 717 is re-connected with the locking mating part 411 on the connecting beam 41, thereby restoring the independent insulation space and the sealed state of the observation window 13 of this circuit. In this way, this embodiment can achieve partial disassembly and assembly, visualization observation, status detection and reset locking of a single target circuit without damaging the overall structure.

[0054] The above are preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made to the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A dual-power switch, characterized in that, include: Enclosure; The substrate, which forms the outer side plate of the housing, has a mounting base surface extending along the length direction; Multiple sets of circuit conductive components are spaced apart on the substrate along the length of the mounting base surface. Each set of circuit conductive components includes a first power supply side conductive component, a load side conductive component, and a second power supply side conductive component that pass through and are fixed to the substrate, as well as an actuating contact component that is electrically connected to the load side conductive component and respectively opens and closes with the first power supply side conductive component and the second power supply side conductive component. The mounting base surface constitutes a unified tolerance positioning reference for the multiple sets of circuit conductive components. The internal space of the housing includes a loop execution area close to the substrate and an operation area away from the substrate; A synchronous actuator is disposed within the loop execution area and correspondingly arranged with multiple sets of the loop conductive components, used to drive multiple sets of the actuator contacts to open and close synchronously. An operating mechanism is located within the operating area and is connected to the synchronous actuator in a transmission manner. An observation window is provided on the housing corresponding to the loop execution area. An insulating separation component is detachably enclosed in the observation window and extends into the loop execution area to separate two adjacent sets of the loop conductive components and form independent insulating spaces.

2. The dual power supply switch according to claim 1, characterized in that, In each group of the circuit conductive components, the first power supply side conductive element, the load side conductive element and the second power supply side conductive element are arranged at intervals along a direction perpendicular to the arrangement direction of the multiple groups of the circuit conductive components. The actuator includes a first contact head and a second contact head. The first contact head is engaged with the first power supply side conductive element, and the second contact head is engaged with the second power supply side conductive element. Both the first contact head and the second contact head are electrically connected to the load side conductive element. The synchronous actuator includes a first synchronous drive shaft and a second synchronous drive shaft extending along the arrangement direction of the multiple sets of the circuit conductive components. The first synchronous drive shaft is connected to multiple sets of the first contact heads through multiple first transmission components to synchronously drive the multiple sets of the first contact heads to move. The second synchronous drive shaft is connected to multiple sets of the second contact heads through multiple second transmission components to synchronously drive the multiple sets of the second contact heads to move.

3. The dual power supply switch according to claim 2, characterized in that, The observation window includes a first observation window and a second observation window that are opened in the cover and located inside the substrate. The first observation window and the second observation window are arranged opposite to each other and are respectively located on opposite sides of the multiple sets of the circuit conductive components. The insulating separation assembly includes multiple sets of insulating separators that correspond one-to-one with the multiple sets of the circuit conductive assemblies. The multiple sets of insulating separators are arranged side by side along the arrangement direction of the multiple sets of the circuit conductive assemblies to jointly cover the first observation window and the second observation window. Each set of insulating separators includes a first separator cavity that is detachably covered at the corresponding part of the first observation window and extends into the loop execution area, and a second separator cavity that is detachably covered at the corresponding part of the second observation window and extends into the loop execution area; The first and second partition cavities mate with the substrate on the side closest to the substrate and together form the independent insulating space for accommodating a set of the circuit conductive components.

4. The dual power supply switch according to claim 3, characterized in that, Each set of insulating separators also includes two sets of arc-extinguishing components respectively built into the first separator cavity and the second separator cavity, and each set of arc-extinguishing components includes multiple arc-extinguishing grids arranged at intervals.

5. The dual power supply switch according to claim 4, characterized in that, Both the first partition cavity and the second partition cavity include two relatively joined half-shells; The two semi-shells are provided with a plurality of spaced-apart insertion slots on their respective inner walls; Each arc-extinguishing grid plate has its two ends inserted into the corresponding insertion slots of the two half-shells, so that the two assembled half-shells clamp and fix each arc-extinguishing grid plate.

6. The dual power supply switch according to claim 5, characterized in that, The plurality of insertion slots in the first partition cavity and the second partition cavity are arranged in a fan-shaped radial pattern; Each of the arc-extinguishing grid plates clamped and fixed in the insertion slot unfolds in a fan shape, and the edge of each of the arc-extinguishing grid plates near the actuating contact member together forms an arc-shaped clearance opening; In the assembled state of the insulating separator, the arc-shaped clearance in the first separator cavity faces and surrounds the opening and closing engagement area of ​​the first contact head and the first power supply side conductive member, and the arc-shaped clearance in the second separator cavity faces and surrounds the opening and closing engagement area of ​​the second contact head and the second power supply side conductive member.

7. The dual power supply switch according to claim 2, characterized in that, The load-side conductive element forms a first end conductive surface and a second end conductive surface at opposite ends along the arrangement direction of the multiple sets of the loop conductive components, respectively. The first contact head and the second contact head are respectively located on opposite sides of the load-side conductive element, and are rotatably attached to the first end conductive surface and the second end conductive surface, respectively; The load-side conductive component is provided with a first wire connection position for wire connection, and the first contact head and the second contact head are respectively provided with a second wire connection position for wire connection, so that the wire can be connected between the load-side conductive component and the first contact head and between the load-side conductive component and the second contact head, respectively.

8. The dual power supply switch according to any one of claims 2 to 6, characterized in that, The insulating separation assembly has a clearance opening on the side near the operating area for the first synchronous drive shaft and the second synchronous drive shaft to accommodate and avoid each other. One end of the first synchronous drive shaft and one end of the second synchronous drive shaft are respectively connected to the operating mechanism through a first input transmission component and a second input transmission component.

9. The dual power supply switch according to any one of claims 3 to 6, characterized in that, The dual power switch also includes a housing frame, which forms the supporting skeleton of the cover, and includes a connecting beam that is spaced apart from the base plate, the connecting beam being located between the circuit execution area and the operation area; The substrate is provided with a positioning mating part for each group of the circuit conductive components, and the connecting beam is provided with a locking mating part for each group of the circuit conductive components. Each set of insulating spacers spans between the substrate and the connecting beam; Each set of insulating separators has a positioning part that is inserted into and engaged with the corresponding positioning mating part at one end near the substrate, and a locking part that is detachably and fixedly connected with the corresponding locking mating part at one end near the connecting beam. The insertion and mating points of the positioning part and the fixed connection points of the locking part together construct at least three anchoring nodes with misalignment distribution to form a planar stable constraint structure. After the fixed connection of the locking part is released, the insulating separator is given a unidirectional plugging and unplugging freedom to independently detach from the substrate.

10. An assembly and inspection method for a dual power supply switch, applied to the dual power supply switch as described in any one of claims 1 to 9, characterized in that, The assembly inspection method includes the following steps: S1. Using the mounting base surface of the substrate as a unified tolerance positioning reference, multiple sets of the circuit conductive components are assembled on the substrate at intervals along the length direction. S2. The synchronous actuator is configured in the circuit execution area, and the operating mechanism is configured in the operation area and the operating mechanism is connected to the synchronous actuator in a transmission manner, so that the operating mechanism drives the synchronous actuator to drive multiple sets of actuator contacts to open and close synchronously; the insulating separation component is detachably covered by the observation window of the housing and extends into the circuit execution area to separate two adjacent sets of circuit conductive components and form the independent insulating space; S3. When it is necessary to observe the contact status or perform factory testing, unlock the insulation separation component corresponding to the target circuit and pull it out of the observation window so that the actuator of the corresponding circuit and its opening and closing cooperation area with the first power supply side conductor and the second power supply side conductor are in an unobstructed open view through the observation window. S4. In the open and visible state, the synchronous actuator is driven by the operating mechanism to detect and observe the opening and closing state of the actuator contact; after the detection is completed, the insulating separator is reinserted into the circuit execution area and sealed in the observation window to lock and reset.

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