Isolating switch closing energy storage mechanism and isolating switch

Abstract

The present invention relates to the technical field of low-voltage electric appliances. Disclosed are an isolating switch closing energy storage mechanism and an isolating switch. The isolating switch closing energy storage mechanism comprises a contact carrier, a contact bridge, an elastic member and an energy storage structure. The contact carrier is slidably assembled in a housing. The contact bridge is movably assembled on the contact carrier. The elastic member is connected to the contact bridge and the contact carrier, and the elastic member is used for driving moving contacts on the contact bridge to move towards fixed contacts. The energy storage structure is used for enabling, when the contact carrier drives the moving contacts on the contact bridge to move towards the fixed contacts, the elastic member to first store energy and then release energy. The energy released by the elastic member can drive the moving contacts to quickly contact the fixed contacts, so that the generation of contact arcs can be reduced, and the contact resistance and temperature between the moving contacts and the fixed contacts can be effectively reduced. Therefore, the degree of contact ablation and wear is reduced, and the electrical life performance of the isolating switch is improved.

Description

Disconnector closing energy storage mechanism and disconnector Technical Field

[0001] The present invention relates to the technical field of low-voltage electrical appliances, in particular to an isolating switch closing energy storage mechanism and an isolating switch. Background Art

[0002] Isolators are common electrical equipment used to isolate circuits. Their operating principle and structure are relatively simple, but their widespread use significantly impacts the design, construction, and safe operation of substations and power plants, necessitating extremely high operational reliability.

[0003] An important indicator of an isolating switch is its connection and disconnection capacity, because a slow closing speed will cause the moving contact and the static contact to be subjected to greater pressure during the closing process, resulting in a larger contact resistance and a very high temperature under the action of the current, which will cause contact erosion and shorten the service life of the isolating switch.

[0004] When an isolating switch utilizes a single moving contact bridge and a single set of static contacts, the wiring assembly typically consists of a single screw connection to a single wiring frame. Using multiple sets of static contacts and multiple moving contact bridges allows for greater current flow, but requires higher wiring stability. When two sets of static contacts are used, each needs to be connected to a corresponding wiring assembly, inevitably occupying more space. Sharing a single wiring assembly, particularly with a single screw connection, can lead to inefficient wiring, shortening service life.

[0005] The wiring components of the isolating switch are usually connected to the interior. When it is not connected, external impurities such as dust and water vapor can easily enter the interior of its casing, making the working environment of its internal components relatively harsh, which is not conducive to ensuring safe use.

[0006] Therefore, there is an urgent need for an isolating switch closing energy storage mechanism and an isolating switch to solve the problems in the prior art.

[0007] Summary of the Invention

[0008] The purpose of the present invention is to provide an energy storage mechanism for closing an isolating switch, which can reduce the generation of contact arcs and effectively reduce the contact resistance and temperature between the moving contact and the static contact, thereby reducing the degree of contact erosion and wear and improving the service life of the isolating switch.

[0009] To achieve this object, the present invention adopts the following technical solutions:

[0010] The disconnector closing energy storage mechanism includes:

[0011] Contact support, sliding assembly in the housing;

[0012] A contact bridge, wherein a moving contact is provided on the contact bridge and the contact bridge is movably assembled on the contact support;

[0013] an elastic member connecting the contact bridge and the contact support, the elastic member being used to drive the movable contact on the contact bridge to move toward the static contact;

[0014] The energy storage structure is configured to make the elastic member first store energy and then release energy when the contact support drives the movable contact on the contact bridge to move toward the static contact, and the elastic member releases energy to drive the movable contact to contact the static contact.

[0015] Optionally, the energy storage structure includes:

[0016] An energy storage boss is provided on the inner wall of the housing along the supporting movement direction of the contact;

[0017] An energy storage shaft is arranged on a side of the contact bridge away from the elastic member, an energy storage hole is provided on the contact support, an energy storage hole wall is provided with an energy release inclined surface, the energy storage shaft is located in the energy storage hole, and both ends of the energy storage shaft are slidably arranged in the housing;

[0018] The energy storage boss is configured to limit the energy storage shaft from sliding along the closing direction of the contact support when the contact support moves in the closing direction, so as to prevent the contact bridge from continuing to move, causing the elastic member to store energy. The energy release slope can drive the energy storage shaft to leave the energy storage boss to release energy from the elastic member, thereby driving the contact bridge to drive the moving contact to move to the closing position.

[0019] Optionally, a guide groove is provided on the inner wall of the housing along the direction in which the contacts support opening and closing.

[0020] Optionally, the energy storage slot is arranged inside the guide slot, and the contact support is located inside the guide slot and abuts against the energy storage slot when opening and closing the switch.

[0021] Optionally, the energy storage structure further includes a reset slope, which is provided on the hole wall of the energy storage hole. When the contact support moves in the opening direction, the reset slope resets the energy storage shaft.

[0022] Optionally, a circular arc transition surface is provided at the connection between the energy release inclined surface and the reset inclined surface.

[0023] Optionally, the arc transition surface is located on one side of the energy storage boss, and during the closing process, the energy storage shaft slides to a position on the arc transition surface corresponding to the energy storage boss.

[0024] Optionally, an assembly hole is opened on the contact support, the movable contact is movably assembled in the assembly hole, one end of the elastic member abuts against the movable contact, and the other end abuts against the top wall of the assembly hole.

[0025] Another object of the present invention is to provide an isolating switch, which reduces the closing time and the generation of contact arcs, thereby improving the electrical life and reliability of the isolating switch.

[0026] To achieve this object, the present invention adopts the following technical solutions:

[0027] The isolating switch comprises a housing, a handle, a static contact and the above-mentioned isolating switch closing energy storage mechanism, wherein the handle is pivotally connected to the housing, the contact support can be linked with the handle, and the two static contacts are respectively arranged in the housing corresponding to the moving contacts at both ends of the contact bridge.

[0028] Optionally, the disconnector further comprises an indicator mechanism, and the indicator mechanism is used to display whether the disconnector is in an open position or a closed position.

[0029] Optionally, the indicating mechanism includes an indicating member pivotally connected to the housing, the indicating member is provided with a first mark and a second mark, the housing is provided with an indicating window, and the contact support is provided with a driving part on the side close to the indicating member, and the driving part can drive the indicating member to rotate so that the first mark or the second mark moves to the indicating window.

[0030] Optionally, the indicator includes a pivot part, a power part, a connecting rod part and an indicating part, the pivot part is rotatably connected to the outer shell, the power part is arranged on the pivot part at an angle to the connecting rod part, the indicating part is connected to the connecting rod part, and the first mark and the second mark are arranged on the indicating part.

[0031] Optionally, the disconnector further comprises a torsional elastic member, one end of which is connected to the housing, and the other end of which is connected to the handle, and the torsional elastic member is configured to keep the handle in a closed position or an open position.

[0032] Another object of the present invention is to provide an isolating switch that is used in conjunction with two static contacts to improve the space utilization, wiring effectiveness and reliability of the isolating switch.

[0033] An isolating switch comprising a housing, a handle, a static contact, and two of the above-mentioned isolating switch closing energy storage mechanisms, wherein the handle is pivotally connected to the housing, the two isolating switch closing energy storage mechanisms are spaced apart and share a common contact support, the contact support being capable of interlocking with the handle, the two contact bridges being spaced apart on the contact support, and the two ends of each contact bridge corresponding to the two static contacts disposed in the housing;

[0034] It also includes at least two pairs of wiring assemblies, each pair of wiring assemblies is arranged at opposite ends of the shell, and the isolating switch closing energy storage mechanism is located between each pair of wiring assemblies, each wiring assembly is respectively connected to two adjacent static contacts, and the shell is provided with wiring holes corresponding to the wiring assemblies.

[0035] Optionally, each wiring assembly includes a wiring frame and two wiring screws, the wiring frame is provided with a wiring space and the wiring space corresponds to a wiring hole, the two wiring screws are arranged side by side, and the tail end of each wiring screw passes through the screw hole opened in the wiring frame and extends into the wiring space.

[0036] Optionally, a conductive plate is further included, one end of which extends into the wiring space and leaves a fixed gap between the end of each wiring screw, and the other end of the conductive plate is divided into two conductive arms arranged at intervals, each conductive arm is provided with a static contact.

[0037] Optionally, a limiting protrusion is provided on the wiring space, and the limiting protrusion divides the wiring space into a first wiring cavity and a second wiring cavity that are interconnected. The tail end of the wiring screw is located in the first wiring cavity, and the conductive plate is located in the second wiring cavity and is limited by the limiting protrusion.

[0038] Another object of the present invention is to provide an isolating switch, which reduces the interference of the external environment on the interior of the housing and improves the electrical life and reliability of the isolating switch.

[0039] The isolating switch includes a housing, a handle, a static contact, and the isolating switch closing energy storage mechanism as described above. A pair of spaced-apart wiring assemblies are provided in the housing, and the isolating switch closing energy storage mechanism is provided between the pair of wiring assemblies. The housing is provided with wiring holes, each of which corresponds to a wiring assembly.

[0040] Optionally, the shell is further configured with a baffle, which is arranged on one side of the wiring hole. The baffle is provided with a shielding area and a wiring groove. When the baffle is matched with the shell in a first position, the wiring groove is connected to at least one corresponding wiring hole. When the baffle is matched with the shell in a second position, the shielding area closes at least one wiring hole.

[0041] Optionally, a slot is provided on the outer shell on one side of each wiring hole, the shielding area and the wiring slot are respectively close to the first end and the second end of the baffle, the first end of the baffle is inserted into the slot, the wiring slot is connected to the corresponding wiring hole, the second end of the baffle is inserted into the slot, and the shielding area remains connected to the wiring hole.

[0042] Optionally, the slot is located inside the housing.

[0043] Optionally, an anti-fool-proof structure is provided between the slot and the baffle, and the anti-fool-proof structure comprises an anti-fool-proof portion for sliding insertion and an anti-fool-proof groove.

[0044] Optionally, the baffle is a straight plate, and the plate surface between the middle of the baffle and the first end of the baffle serves as a shielding area. A protruding anti-foolproof portion is provided on one side surface of the shielding area. A notch is provided on the second end edge of the baffle, and pin portions are formed on both sides of the open end of the notch. The closed end of the notch extends toward the direction close to the first end and serves as a wiring slot adjacent to the anti-foolproof portion.

[0045] Optionally, the shell includes a base and a box cover, the box cover is fixedly connected to the base by fastening screws, and the slot is opened in the shell and corresponds to between the wiring assembly and the wiring hole; the wiring hole is opened on the base or the box cover, or the wiring hole is formed by connecting a first groove opened on the edge of the box cover and the base; the slot is opened on the base or the box cover, or the wiring slot is formed by connecting a second groove opened on the edge of the box cover and the base. Beneficial effects:

[0046] The closing energy storage mechanism of the isolating switch provided by the present invention includes a contact support, a contact bridge, an elastic member and an energy storage structure. The contact support is slidably assembled in a housing, the contact bridge is movably assembled on the contact support, the elastic member connects the contact bridge and the contact support, the elastic member is used to drive the moving contact on the contact bridge to move toward the static contact, and the energy storage structure is used to make the elastic member first store energy and then release energy when the contact support drives the moving contact on the contact bridge to move toward the static contact. The energy released by the elastic member can drive the moving contact to quickly contact the static contact, which can reduce the generation of contact arcs and can effectively reduce the contact resistance and temperature between the moving contact and the static contact, thereby reducing the degree of contact erosion and wear, and improving the electrical life performance of the isolating switch.

[0047] The isolating switch provided by the present invention adopts the above-mentioned isolating switch closing energy storage mechanism, and the handle can be linked with the contact support, so that the operation can be completed quickly and reliably when closing, reducing the closing time and the generation of contact arcs, and improving the electrical life and reliability of the isolating switch.

[0048] The isolating switch provided by the present invention has two wiring screws arranged side by side on the wiring frame, which are matched with the conductive plate and the two static contacts, and has a simple structure, a reasonable layout, and reliable wiring, thereby improving safety.

[0049] The isolating switch provided by the present invention has a baffle that can cover or expose the wiring hole, thereby both sealing the wiring hole and ensuring wiring, thereby providing high reliability, preventing external environmental interference with the housing, and ensuring safe use. In particular, the baffle can be stored in the housing, making it reusable and preventing loss. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] FIG1 is a schematic structural diagram of an isolating switch provided by the present invention in a closed state and an energy storage mechanism in an open state;

[0051] FIG2 is a schematic diagram of the closing process of the isolating switch closing energy storage mechanism provided by the present invention;

[0052] FIG3 is a second schematic diagram of the closing process of the closing energy storage mechanism of the disconnector provided by the present invention;

[0053] 4 is a schematic structural diagram of the disconnector closing energy storage mechanism provided by the present invention in a closed state;

[0054] FIG5 is an exploded view of the closing energy storage mechanism of the disconnector provided by the present invention;

[0055] FIG6 is a schematic structural diagram of an energy storage structure provided by the present invention;

[0056] FIG7 is a schematic structural diagram of an indicator provided by the present invention;

[0057] FIG8 is a schematic structural diagram of a wiring assembly, two contact bridges, and a conductive plate provided by the present invention;

[0058] FIG9 is a schematic diagram of the connection assembly and the conductive plate provided by the present invention;

[0059] FIG10 is a schematic structural diagram of a wiring assembly provided by the present invention;

[0060] FIG11 is a schematic structural diagram of a conductive plate provided by the present invention;

[0061] FIG12 is a schematic structural diagram of a base provided by the present invention;

[0062] FIG13 is a schematic structural diagram of a baffle provided by the present invention;

[0063] Figure: 100, contact support; 110, energy storage hole; 111, energy release slope; 112, reset slope; 113, arc transition surface; 120, assembly hole; 130, drive unit; 200, contact bridge; 210, moving contact; 300, elastic member; 400, housing; 410, energy storage tank; 411, energy storage boss; 420, indicator window; 430, contact support limit slot; 440, guide block; 450, guide slot; 460, wiring hole; 470, baffle; 471, first end; 472, second end; 473, shielding area ; 474, wiring slot; 475, anti-mumbling part, 476, pin part; 480, slot; 490, fastening screw; 500, energy storage shaft; 600, handle; 700, static contact; 710, conductive plate; 711, conductive arm; 800, indicator; 810, pivot part; 820, power part; 830, connecting rod part; 840, indicator part; 900, wiring assembly; 910, wiring frame; 920, wiring screw; 930, wiring space; 931, first wiring chamber; 932, second wiring chamber, 933, limiting protrusion. DETAILED DESCRIPTION

[0064] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It will be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all structures.

[0065] In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific circumstances.

[0066] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0067] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are used to refer to positions or locations based on those shown in the accompanying drawings. These terms are intended solely to facilitate description and simplify operation, and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0068] This embodiment provides a disconnector closing energy storage mechanism for use in a disconnector. As shown in Figures 1-5 , the disconnector closing energy storage mechanism includes a contact support 100, a contact bridge 200, an elastic member 300, and an energy storage structure. The contact support 100 is slidably mounted within a housing 400. The contact bridge 200 is movably mounted on the contact support 100. Moving contacts 210 are provided at both ends of the contact bridge 200. The elastic member 300 connects the contact bridge 200 and the contact support 100 and is used to drive the moving contact 210 on the contact bridge 200 toward the stationary contact. The elastic member 300 is located on the upper side of the contact bridge 200, and the energy storage structure is located on the lower side of the contact bridge 200. The energy storage structure is used to make the elastic member 300 store energy and then release energy when the contact support 100 drives the moving contact 210 on the contact bridge 200 to move toward the static contact 700. After releasing the energy, the elastic member 300 can drive the contact bridge 200 to drive the moving contact 210 to quickly contact the static contact 700, which can reduce the generation of contact arcs and can effectively reduce the contact resistance and temperature between the moving contact 210 and the static contact 700, thereby reducing the degree of contact erosion and wear, and improving the electrical life performance of the disconnector.

[0069] Optionally, as shown in Figures 1 to 5, the energy storage structure includes an energy storage boss 411 and an energy storage shaft 500, the energy storage boss 411 is arranged on the inner wall of the housing 100 along the moving direction of the contact support 100, the energy storage shaft 500 is arranged on the side of the contact bridge 200 away from the elastic member 300, the contact support 100 is provided with an energy storage hole 110 at the position corresponding to the energy storage shaft 500, the hole wall of the energy storage hole 110 is provided with an energy release inclined surface 111, the energy storage shaft 500 is located in the energy storage hole 110 and The two ends of the energy storage shaft are respectively slidably arranged in the housing 100. When the contact support 100 moves in the closing direction, it can drive the contact bridge 200 and the elastic member 300 to move downward together. The energy storage shaft 500 slides along the closing direction of the contact support 100 to the energy storage boss 411. The energy storage shaft 500 abuts against the energy storage boss 411 to prevent the contact bridge 200 from continuing to move. At this time, the contact support 100 continues to move downward, compressing the elastic member 300, and the elastic member 300 compresses to store energy. When the contact support 100 continues to move downward, the energy release slope 111 can push the energy storage shaft 500 to move horizontally along the energy storage boss 411. When the energy storage shaft 500 leaves the energy storage boss 411, the elastic member 300 releases energy. After releasing energy, the elastic member 300 can drive the contact bridge 200 to drive the moving contact 210 to quickly contact the static contact 700, thereby reducing the generation of contact arcs, reducing the contact resistance and temperature between the moving contact 210 and the static contact 700, reducing the degree of contact erosion and wear, and improving the electrical life performance of the disconnector.

[0070] Optionally, a guide groove 450 extending along the opening and closing direction of the contact support 100 is also provided on the inner wall of the housing 400. The guide groove 450 can guide the movement direction of the contact support 100, ensuring that the contact support 100 moves in the correct direction, thereby improving the reliability of opening and closing.

[0071] Optionally, an energy storage groove 410 is provided inside the guide groove 450, and an energy storage boss 411 is provided in the energy storage groove 410. When opening and closing the circuit, the contact support 100 is located inside the guide groove 450 and abuts against the energy storage groove 410. The setting of the energy storage groove 410 ensures that on the basis of the movement of the contact support 100 along the guide groove 450, the correct moving direction is planned for the energy storage shaft 500, so that the energy storage shaft 500 can cooperate with the energy storage boss 411, the energy storage hole 110 and the elastic member 300 to store and release energy in the moving contact bridge, so that the moving contact 210 can quickly contact the static contact 700, which can reduce the generation of contact arcs.

[0072] Optionally, a contact support limiting groove 430 extending along the opening and closing direction of the contact support 100 is further provided on the inner wall of the housing 400. The contact support limiting groove 430 can limit the contact support 100. Specifically, when opening, the contact support 100 is located in the guide groove 450. During the closing process, the contact support 100 moves along the guide groove 450 to the contact support limiting groove 430. The setting of the limiting groove can prevent the part of the contact support 100 leaving the guide groove 450 from being offset, thereby improving the reliability of closing.

[0073] Optionally, the energy storage structure also includes a reset slope 112, which is provided on the bottom wall of the energy storage hole 110. When the contact support 100 moves in the opening direction, the energy storage shaft 500 falls back to its initial position along the reset slope 112 under the action of gravity and the pressure of the elastic member 300, thereby achieving reset. The structure for resetting the energy storage shaft 500 is simple, which reduces the possibility of the energy storage shaft 500 getting stuck during reset and improves the reliability and stability of the energy storage structure. In addition, by adding the reset slope 112, it can be ensured that after each opening, the energy storage shaft 500 can return to its initial position to prepare for the next energy storage, thereby improving the efficiency and service life of the energy storage structure and ensuring the safe operation of the power system.

[0074] Optionally, an arc transition surface 113 is provided at the connection between the energy release slope 111 and the reset slope 112, which can make the transition between the energy release slope 111 and the reset slope 112 smoother, reduce the wear and jamming of the energy storage shaft 500, and improve the smoothness of closing and opening the disconnector.

[0075] Optionally, the arc transition surface 113 can serve as the initial position for the energy storage shaft 500 to fall back. The arc transition surface is located on one side of the energy storage boss. During the closing process, under the action of gravity on the energy storage shaft, the energy storage shaft slides along the reset slope to the arc transition surface, preparing for energy storage during the next closing process. This ensures that the energy storage shaft can correctly store energy during the next closing process. This reset structure is simple, safe, and reliable. Furthermore, the presence of the arc transition surface makes the energy storage shaft's reset process smoother, reducing shock and vibration, and ensuring reliable operation of the circuit breaker.

[0076] Optionally, as shown in Figure 6, an assembly hole 120 is opened on the contact support 100, and the opening direction of the assembly hole 120 is perpendicular to the opening direction of the energy storage hole 110. The contact bridge 200 is movably assembled in the assembly hole 120, and the elastic member 300 is installed on the upper side of the contact bridge 200. The energy storage shaft moves on the lower side of the contact bridge 200. One end of the elastic member 300 abuts against the contact bridge 200, and the other end abuts against the top wall of the assembly hole 120. The elastic member 300 can cooperate with the energy storage shaft 500 and the contact support 100 to store and release energy, ensuring that the moving contact 210 on the contact bridge 200 can quickly contact the static contact 700 during the closing process of the disconnector, reducing the generation of arcs, and the elastic member 300 can provide contact pressure to the contact bridge 200 to ensure that the moving contact 210 on the contact bridge 200 is in good contact with the static contact 700, making the circuit operation more stable.

[0077] Optionally, the elastic member 300 in this embodiment is a leaf spring. This leaf spring can store and release energy in the disconnector through elastic deformation, ensuring that the movable contact 210 on the contact bridge 200 quickly contacts the stationary contact 700 during the disconnector closing process, reducing arcing and improving the electrical life of the disconnector. Furthermore, as an elastic element, the leaf spring has good fatigue resistance and can maintain good elastic deformation over a long period of time, thereby improving the reliability and stability of the disconnector.

[0078] This embodiment also provides an isolating switch, as shown in Figures 1-7, comprising a housing 400, a handle 600, a static contact 700, and the aforementioned isolating switch closing energy storage mechanism. The handle 600 is pivotally connected to the housing 400, and the contact support 100 can be linked to the handle 600. Two static contacts 700 are arranged within the housing 400, corresponding to the movable contacts 210 at both ends of the contact bridge 200. The handle 600 is used to drive the isolating switch to open or close, thereby switching the contact state between the movable contact 210 and the static contact 700. The handle 600 can be linked to the contact support 100, so that the closing operation can be completed quickly and reliably, reducing the closing time and the generation of contact arcs, thereby improving the electrical life and reliability of the isolating switch. In addition, this isolating switch has a compact structure, is easy to operate, and has excellent energy storage and release performance, which can effectively reduce arc generation and the contact resistance of the movable and static contacts 700, thereby improving the service life of the isolating switch.

[0079] Optionally, the disconnector further includes an indicator mechanism for displaying whether the disconnector is in the open or closed position. The indicator mechanism allows operators to intuitively understand the open and closed states of the disconnector, thus avoiding misoperation and safety accidents.

[0080] Optionally, the indicator mechanism includes an indicator member 800 pivotally connected to the housing 400, with a first mark and a second mark provided on the indicator member 800. An indicator window 420 is provided in the housing 400, and a drive unit 130 is provided on a side of the contact support 100 adjacent to the indicator member 800. As the contact support 100 moves up and down, the drive unit 130 can drive the indicator member 800 to rotate so that the first mark or the second mark moves into the indicator window. Therefore, when a user needs to use the isolating switch, they only need to observe the mark on the indicator member 800 through the indicator window 420 to determine the status of the isolating switch, which is convenient and quick.

[0081] Optionally, as shown in FIG7 , the indicator member 800 includes a pivot portion 810, a power portion 820, a connecting rod portion 830, and an indicator portion 840. The pivot portion 810 is rotatably connected to the housing 400. The power portion 820 and the connecting rod portion 830 are arranged on the pivot portion 810 at an angle. The indicator portion 840 is connected to the end of the connecting rod portion 830 not connected to the pivot portion 810. The first mark and the second mark are sequentially arranged on the indicator portion 840. The driving unit 130 is connected to the power portion 820 to drive the indicator member 800 to rotate. With this design, the disconnector can directly display the switch position through the indicator window 420 during the opening or closing process, thereby improving the convenience and safety of operation.

[0082] For example, the first indicator is red and the second indicator is green. When the disconnector is in the closed state, the indicator can be red, and when the disconnector is in the open state, it can be green. This design not only facilitates the use of the operator, but also improves the safety performance of the disconnector.

[0083] Optionally, the disconnector further includes a torsional elastic member, one end of which is connected to the housing 400 and the other end to the handle 600. The torsional elastic member is configured to maintain the handle 600 in the closed or open position. The torsional elastic member provides a damping force when the handle 600 is twisted to the closed or open position, thereby maintaining the handle 600 in that position. This prevents accidental misoperation of the handle 600 during use, which could cause the switch to change state, thereby increasing the reliability and safety of the disconnector.

[0084] Optionally, in this embodiment, the torsional elastic member is a torsion spring. The torsion spring has a simple structure and low cost, which can further save costs and improve the reliability of opening and closing of the disconnector.

[0085] The closing process of the isolating switch provided in this embodiment is as follows:

[0086] First, as shown in Figures 1 to 5, manually rotate the handle 600. As the handle 600 rotates, the contact support 100 moves downward, driving the energy storage shaft 500 downward and moving in the energy storage slot 410 of the housing 400. When the energy storage shaft 500 moves to the energy storage boss 411 of the energy storage slot 410, the energy storage shaft 500 is stuck in the slot of the housing 400 and stops moving, preventing the contact bridge 200 from moving. However, the handle 600 continues to rotate, causing the leaf spring to begin to compress and store energy.

[0087] Then, as the contact support 100 continues to move downward, the energy release slope 111 on the left wall of the energy storage hole 110 can drive the energy storage shaft 500 to move horizontally. After reaching the critical point as shown in Figure 3, the leaf spring is unlocked when the energy storage shaft 500 slides off the energy storage step.

[0088] Finally, after the leaf spring is unlocked, as shown in Figures 4 and 5, the leaf spring rebounds quickly to drive the moving contact 210 on the contact bridge 200 to contact the static contact 700 at a high speed, which can reduce the generation of contact arcs and improve the electrical life performance of the disconnector.

[0089] The opening process of the isolating switch provided in this embodiment is as follows:

[0090] The handle 600 is rotated in the opening direction, and the contact bridge 200 moves upward. Since the reset slope 112 is inclined, the energy storage shaft returns to the initial position under the pressure of gravity and the leaf spring, thereby achieving reset.

[0091] The disconnector of this embodiment is further provided with a wiring assembly 900. Two wiring assemblies 900 are spaced apart and arranged at opposite ends of the housing 600. The closing energy storage mechanism of the disconnector corresponds to between the two wiring assemblies 900. Each wiring assembly 900 is respectively connected to an adjacent static contact 700. The wiring assembly 900 of this embodiment can adopt existing technology.

[0092] This embodiment also provides another isolating switch, as shown in Figures 8-13, including a housing 400, a handle 600 and two isolating switch closing energy storage mechanisms. The two isolating switch closing energy storage mechanisms share the same contact support 100, and two contact bridges 200 are arranged on the contact support 100 at intervals, that is, the two contact bridges 200 are arranged at intervals up and down, and the elastic member 300 and the energy storage structure are respectively located on the upper and lower sides of the contact bridge 200. A moving contact 210 is provided at both ends of each contact bridge 200, and the two ends of each contact bridge 200 respectively correspond to two static contacts 700 arranged in the housing 400. A moving space is formed between the two static contacts 700 corresponding to the same end of the contact bridge 200. The moving space provides a moving space for the end of one of the contact bridges 200, and a moving contact 210 is provided at the end of the contact bridge 200 to cooperate with one of the static contacts 700. Each isolating switch closing energy storage mechanism has the same structure and operation principle as the above, and the specific structure and operation process are not repeated here.

[0093] As shown in Figure 9, the shell 400 also includes at least two pairs of wiring assemblies 900, and each pair of wiring assemblies 900 are arranged at opposite ends of the shell 400 at intervals. The two isolating switch closing energy storage mechanisms are both located between a pair of wiring assemblies 900, and each wiring assembly 900 is respectively connected to two adjacent static contacts 700. The shell 400 is provided with wiring holes 460 corresponding to the wiring assemblies 900, and each wiring assembly 900 is respectively connected to two static contacts 700. The two static contacts 700 share one wiring assembly 900, which can save space in the shell 400 and reduce the number of holes opened on the shell 400. For example, one wiring hole 460 is reduced, making the internal structure of the shell 400 more compact and reasonable.

[0094] Optionally, as shown in Figures 9-10, each wiring assembly 900 includes a wiring frame 910 and two wiring screws 920. The wiring frame 910 is provided with a wiring space 930 and the wiring space 930 corresponds to a wiring hole 460 opened in the outer shell 400. The two wiring screws 920 are arranged side by side, and the tail end of each wiring screw 920 passes through the screw hole opened in the wiring frame 910 and extends into the wiring space 930. The external wire extends into the wiring space 930 from the wiring hole 460 and is connected to each wiring screw 920 to complete the wiring.

[0095] Furthermore, the number of closing energy storage mechanisms of the disconnector can be more than two, and correspondingly, the number of wiring screws 920 on the same wiring frame 910 can also be more than two, and the number thereof matches the number of closing energy storage mechanisms of the disconnector, that is, the number of wiring screws 920 of each wiring assembly 900 matches the number of adjacent static contacts 700.

[0096] Optionally, as shown in Figures 8, 9 and 11, the housing 400 also includes a conductive plate 710, one end of which extends into the wiring space 930 and leaves a fixed gap between the end of each wiring screw 920, and the external wire extends into the fixed gap and is pressed by the wiring screw 920. Furthermore, each wiring screw 920 is also connected to a wire pressing plate, and the outer diameter of the wire pressing plate is larger than the outer diameter of the tail end of the wiring screw 920. By increasing the contact area, it is convenient to press the external wire entering the wiring space 930.

[0097] Optionally, the other end of the conductive plate 710 is divided into two conductive arms 711 arranged at intervals, each conductive arm 711 is provided with a static contact 700, and the static contact 700 is directly set at the other end of the conductive plate 710, and the wires connecting the static contact 700 and the conductive plate 710 or the wiring assembly 900 can be omitted, which has the advantages of simple structure and convenient wiring.

[0098] Optionally, as shown in Figure 10, the wiring space 930 is provided with a limiting protrusion 933, which divides the wiring space 930 into a first wiring chamber 931 and a second wiring chamber 932 that are connected to each other. The tail end of the wiring screw 920 is located in the first wiring chamber 931, and the conductive plate 710 extends into the second wiring chamber 932 and is limited in the second wiring chamber 932 by the limiting protrusion 933. The limiting protrusion 933 stably limits one end of the conductive plate 710 to prevent the conductive plate 710 from displacing in the wiring space 930. The interconnected first wiring chamber 931 and the second wiring chamber 932 ensure the stable fit of the external wires, the conductive plate 710 and the wiring screw 920.

[0099] In conjunction with Figures 8-11, a specific structure of a wiring assembly 900 is provided. In the figure, a wiring frame 910 is a quadrilateral frame structure. The wiring frame 910 can be integrally formed or a split structure. Two parallel screw holes are provided on the top wall of the wiring frame 910. A wiring screw 920 is threadedly connected in each screw hole. The head of the wiring screw 920 is located outside the wiring frame 910. The tail end of the wiring screw 920 passes through the screw hole and is located in the wiring space 930. The tail end of the wiring screw 920 is spaced relative to the inner side of the bottom wall of the wiring frame 910 to form a fixed gap. By rotating the wiring screw Nail 920, the tail end of the wiring screw 920 can be close to or away from the bottom wall of the wiring frame 910, so as to adjust the fixing gap to facilitate the access of external wires; the two side walls of the wiring frame 910 protrude into the wiring space 930 to form a limiting protrusion 933, which separates the wiring space 930 into a first wiring cavity 931 and a second wiring cavity 932 that are interconnected. The first wiring cavity 931 is close to the top wall of the wiring frame 910, and the second wiring cavity 932 is close to the bottom wall of the wiring frame 910. In the figure, the first wiring cavity 931 is a circular through groove, and the second wiring cavity 932 is a rectangular through groove.

[0100] The external wire extends parallel to the central axis of the first wiring cavity 931. One end of the conductive plate 710 extends parallel to the central axis of the second wiring cavity 932. The edge of the conductive plate 710 is restrained by a stopper 933, preventing it from moving within the wiring cavity 930. As the end of the wiring screw 920 moves within the first wiring cavity 931, it gradually approaches the second wiring cavity 932. The wire contacts the conductive plate 710 and is compressed by the end of the grounding screw. Furthermore, the entire wiring cavity 930 can be a square, round, or irregularly shaped hole.

[0101] 9 and 11 , a specific structure of a conductive plate 710 is provided. The conductive plate 710 is in the shape of a straight plate as a whole. One end of the conductive plate 710 extends and is connected to the wiring assembly 900. The other end of the conductive plate 710 is a U-shaped body. The two side walls of the U-shaped body serve as a conductive arm 711 spaced apart from each other. The end of one contact bridge 200 can move in the space between the two conductive arms 711. A static contact 700 is provided at the end of each conductive arm 711. In FIG9 , a static contact 700 is provided on the upper surface of each conductive arm 711. Correspondingly, each moving contact 210 corresponds to the top of each static contact 700.

[0102] As shown in Figures 12 and 13, this embodiment also provides a housing 400 suitable for the above-mentioned two types of disconnectors. At least a pair of wiring holes 460 are opened at opposite ends of the housing 400. A pair of spaced wiring assemblies 900 are arranged in the housing 400. Each wiring hole 460 corresponds to an adjacent wiring assembly 900. The external wire passes through the wiring hole 460 and is connected to the wiring assembly 900. The above-mentioned disconnector closing energy storage mechanism is arranged between the pair of wiring assemblies 900. When the wiring assembly 900 adopts the existing structure, one disconnector closing energy storage mechanism is arranged between the pair of wiring assemblies 900. When the wiring assembly 900 adopts the above-mentioned double-screw structure wiring assembly 900, two disconnector closing energy storage mechanisms are arranged between the pair of wiring assemblies 900.

[0103] Optionally, the housing 400 is further configured with a baffle 470, which is arranged on one side of the wiring hole 460. The baffle 470 is provided with a shielding area 473 and a wiring slot 474. When the baffle 470 is matched with the housing 400 in the first position, the wiring slot 474 is connected to at least one corresponding wiring hole 460. When the baffle 470 is matched with the housing 400 in the second position, the shielding area 473 closes at least one wiring hole 460. The baffle 470 can both close the wiring hole 460 and expose the wiring hole 460 when in use. Closing the wiring hole 460 when not connected can ensure the sealing of the product.

[0104] Optionally, a slot 480 is provided on the shell 400 on one side of each wiring hole 460, and the shielding area 473 and the wiring slot 474 are respectively close to the first end 471 and the second end 472 of the baffle 470. When the first end 471 of the baffle 470 is inserted into the slot 480, the baffle 470 and the shell 400 are in the first position of cooperation, and the wiring slot 474 is correspondingly connected to the wiring hole 460 for external wire wiring; when the second end 472 of the baffle 470 is inserted into the slot 480, the baffle 470 and the shell 400 are in the second position of cooperation, and the shielding area 473 corresponds to the wiring hole 460 to close the wiring hole 460. The baffle 470 and the shell 400 are plug-in compatible, which has the advantage of convenient disassembly and assembly.

[0105] Optionally, as shown in Figure 12, the housing 400 includes a base and a box cover (not shown), wherein the box cover is fixedly connected to the base by a fastening screw 490. The box cover of this embodiment is also provided with a plurality of operating holes, each operating hole corresponding to a wiring screw 920 and a fastening screw 490, and the central axis of the operating hole is perpendicular to the central axis of the wiring hole 460. Preferably, the slot 480 is located inside the housing 400, and the slot 480 corresponds to between the wiring assembly 800 and the wiring hole 460, which is conducive to storing the baffle 470 to prevent loss and can be reused.

[0106] Furthermore, the wiring hole 460 is opened on the side wall of the base, or the wiring hole 460 is opened on the side wall of the box cover, or a first groove is opened on the side wall of the box cover and the edge of the side wall of the base, and when the box cover is closed on the base, the two first grooves are connected to form the wiring hole 460; the slot 480 is correspondingly opened on the side wall of the base, or the slot 480 is opened on the side wall of the box cover, or a second groove is opened on the side wall of the box cover and the edge of the side wall of the base, and when the box cover is closed on the base, the two second grooves are connected to form the slot 480, and the lengths of the first groove and the second groove are both less than the overall length of the baffle 470.

[0107] Optionally, an anti-foolproof structure is provided between the slot 480 and the baffle 470 for achieving correct assembly of the baffle 470. Preferably, the anti-foolproof structure includes a sliding anti-foolproof portion 475 and an anti-foolproof groove. The shapes of the anti-foolproof portion 475 and the anti-foolproof groove may match each other, or only partial areas may match.

[0108] In combination with Figures 12 and 13, a specific structure of a baffle 470 is provided. The baffle 470 is a straight plate, and the plate surface between the middle of the baffle 470 and the first end 471 of the baffle 470 serves as a shielding area 473. A protruding anti-foolproofing portion 475 is provided on one side surface of the shielding area 473. One end of the anti-foolproofing portion 475 in the figure is kept flush with the end of the first end 471 of the baffle 470, the width of the anti-foolproofing portion 475 is slightly smaller than the width of the baffle 470, and the other end of the anti-foolproofing portion 475 is circular; a notch is provided on the edge of the second end 472 of the baffle 470, and pin portions 476 are formed on both sides of the open end of the notch, and the closed end of the notch extends toward the direction close to the first end 471 and serves as a wiring slot 474 adjacent to the anti-foolproofing portion 475, that is, adjacent to the circular end of the anti-foolproofing portion 475 in Figure 13, and the closed end of the notch is approximately a circular hole. In Figure 12, near the lower left end, the second end 472 of the baffle 470 is inserted into the slot 480, and the wiring hole 460 is closed by the shielding area 473. Near the upper right end, the first end 471 of the baffle 470 is inserted into the slot 480, so that the wiring groove 474 corresponds to the wiring hole 460, thereby exposing the wiring hole 460 for convenient wiring.

[0109] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. The closing energy storage mechanism of the isolating switch is characterized by: include: A contact support (100) is slidably mounted in the housing (400); A contact bridge (200), wherein a moving contact (210) is provided on the contact bridge (200), and the contact bridge (200) is movably mounted on the contact support (100); an elastic member (300) connecting the contact bridge (200) and the contact support (100), the elastic member (300) being used to drive the moving contact (210) on the contact bridge (200) to move toward the stationary contact (700); The energy storage structure is configured to cause the elastic member (300) to first store energy and then release energy when the contact support (100) drives the moving contact (210) on the contact bridge (200) to move toward the static contact, and the elastic member (300) releases energy to drive the moving contact (210) to contact the static contact (700).

2. The isolating switch closing energy storage mechanism according to claim 1, characterized in that: The energy storage structure comprises: An energy storage boss (411) is arranged on the inner wall of the housing (400) along the moving direction of the contact support (100); An energy storage shaft (500) is arranged on a side of the contact bridge (200) away from the elastic member (300); an energy storage hole (110) is provided on the contact support (100); a hole wall of the energy storage hole (110) is provided with an energy release inclined surface (111); the energy storage shaft (500) is located in the energy storage hole (110) and two ends of the energy storage shaft (500) are slidably arranged in the housing (400); The energy storage boss (411) is configured to limit the energy storage shaft (500) from sliding along the closing direction of the contact support (100) when the contact support (100) moves in the closing direction, so as to prevent the contact bridge (200) from continuing to move, so that the elastic member (300) stores energy; the energy release slope (111) can drive the energy storage shaft (500) to leave the energy storage boss (411) so that the elastic member (300) releases energy, so as to drive the contact bridge (200) to drive the moving contact (210) to move to the closing position.

3. The isolating switch closing energy storage mechanism according to claim 1, characterized in that: It also includes a guide groove (450), which is arranged on the inner wall of the housing (400) along the opening and closing direction of the contact support (100); the energy storage groove (410) is arranged inside the guide groove (450), and when the contact support (100) is opened, the contact support (100) is located inside the guide groove (430) and abuts against the energy storage groove (410).

4. The isolating switch closing energy storage mechanism according to claim 2, characterized in that: The energy storage structure further comprises a reset slope (112), wherein the reset slope (112) is arranged on the hole wall of the energy storage hole (110), and when the contact support (100) moves in the opening direction, the reset slope (112) resets the energy storage shaft (500).

5. The isolating switch closing energy storage mechanism according to claim 4, characterized in that: A circular arc transition surface (113) is provided at the connection between the energy release inclined surface (111) and the reset inclined surface (112); the circular arc transition surface (113) is located on a side close to the energy storage boss (411); during the closing process, the energy storage shaft (500) slides to a position on the circular arc transition surface (113) corresponding to the energy storage boss (411).

6. The isolating switch closing energy storage mechanism according to claim 1, characterized in that: The contact support (100) is provided with an assembly hole (120), the movable contact (210) is movably assembled in the assembly hole (120), one end of the elastic member (300) abuts against the movable contact (210), and the other end abuts against the top wall of the assembly hole (120).

7. Isolating switch, characterized in that, The invention comprises a housing (400), a handle (600), a static contact (700) and an isolating switch closing energy storage mechanism as claimed in any one of claims 1 to 6, wherein the handle (600) is pivotally connected to the housing (400), the contact support (100) can be linked with the handle (600), and the two static contacts (700) are respectively arranged in the housing (400) corresponding to the moving contacts (210) at both ends of the contact bridge (200).

8. Isolating switch, characterized in that: The invention comprises a housing (400), a handle (600), a static contact (700) and at least two isolating switch closing energy storage mechanisms according to any one of claims 1 to 6, wherein the handle (600) is pivotally connected to the housing (400), at least two isolating switch closing energy storage mechanisms are arranged at intervals and share a common contact support (100), the contact support (100) can be linked with the handle (600), at least two contact bridges (200) are arranged at intervals on the contact support (100), and two ends of each contact bridge (200) respectively correspond to two static contacts (700) arranged in the housing (400); It also includes at least one pair of wiring assemblies (900), each pair of wiring assemblies (900) being arranged at intervals at opposite ends of the housing (400), and the isolating switch closing energy storage mechanism being located between each pair of wiring assemblies (900), each wiring assembly (900) being respectively connected to two adjacent static contacts (700), and the housing (400) being provided with wiring holes (460) corresponding to the wiring assemblies (900).

9. The isolating switch according to claim 8, characterized in that: Each wiring assembly (900) comprises a wiring frame (910) and two wiring screws (920); the wiring frame (910) is provided with a wiring space (930) and the wiring space (930) corresponds to a wiring hole (460); the two wiring screws (920) are arranged side by side, and the tail end of each wiring screw (920) passes through a screw hole provided in the wiring frame (910) and extends into the wiring space (930).

10. The isolating switch according to claim 9, characterized in that: The invention also comprises a conductive plate (710), one end of which extends into the wiring space (930) and has a fixed gap with the tail end of each wiring screw (920), and the other end of which is divided into two conductive arms (711) arranged at intervals, each conductive arm (711) being provided with a static contact (700); a limiting protrusion (933) is protruding from the wiring space (930), and the limiting protrusion (933) divides the wiring space (930) into a first wiring cavity (931) and a second wiring cavity (932) which are interconnected, the tail end of the wiring screw (920) is located in the first wiring cavity (931), and the conductive plate (710) is located in the second wiring cavity (932) and is limited by the limiting protrusion (933).

11. Isolating switch, characterized in that: The invention comprises a housing (400), a handle (600), a static contact (700), and the isolating switch closing energy storage mechanism according to any one of claims 1 to 6, wherein a pair of wiring assemblies (900) arranged at intervals are arranged in the housing (400), the isolating switch closing energy storage mechanism is arranged between the pair of wiring assemblies (900), the housing (400) is provided with wiring holes (460), and the wiring holes (460) respectively correspond to one wiring assembly (900); The housing (400) is further provided with a baffle (470), the baffle (470) being arranged on one side of the wiring hole (460), the baffle (470) being provided with a shielding area (473) and a wiring groove (474), and when the baffle (470) and the housing (300) are in a first position, the wiring groove (474) is correspondingly connected to at least one wiring hole (460), and when the baffle (470) and the housing (400) are in a second position, the shielding area (473) at least closes one wiring hole (460).

12. The isolating switch according to claim 11, characterized in that: A slot (480) is provided on the housing (400) on one side of each wiring hole (460); the shielding area (473) and the wiring slot (474) are respectively close to the first end (471) and the second end (472) of the baffle (470); the first end (471) of the baffle (470) is plugged into the slot (480); the wiring slot (474) is correspondingly connected to the wiring hole (460); the second end (472) of the baffle (470) is plugged into the slot (480); and the shielding area (473) is kept connected to the wiring hole (460).

13. The isolating switch according to claim 12, characterized in that: The slot (480) is located inside the housing (400).

14. The isolating switch according to claim 12, characterized in that: The baffle (470) is a straight plate, and the plate surface between the middle of the baffle (470) and the first end (471) of the baffle (470) serves as a shielding area (473). A protruding fool-proof portion (475) is provided on one side surface of the shielding area (473). A notch groove is provided on the edge of the second end (472) of the baffle (470), and pin portions (476) are formed on both sides of the open end of the notch groove. The closed end of the notch groove extends in a direction close to the first end (471) and serves as a wiring groove (474) adjacent to the fool-proof portion (475).

15. The isolating switch according to claim 12, characterized in that: The housing (400) includes a base and a box cover, the box cover is fixedly connected to the base by a fastening screw (490), the slot (480) is opened in the housing (400) and corresponds to between the wiring assembly (900) and the wiring hole (460); the wiring hole (460) is opened on the base or the box cover, or the wiring hole (460) is formed by connecting a first groove opened on the edge of the box cover and the base; the slot (480) is opened on the base or the box cover, or the wiring groove (474) is formed by connecting a second groove opened on the edge of the box cover and the base.

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