CN114582665B

CN114582665B - Contact pole of isolating switch

Info

Publication number: CN114582665B
Application number: CN202210112272.5A
Authority: CN
Inventors: 王阅; 胡刚; 袁高普; 施长云
Original assignee: Shanghai Jingsi Intelligent Technology Co ltd
Current assignee: Shanghai Jingsi Intelligent Technology Co ltd
Priority date: 2022-01-29
Filing date: 2022-01-29
Publication date: 2024-03-12
Anticipated expiration: 2042-01-29
Also published as: CN114582665A

Abstract

The invention discloses an isolating switch contact pole, which comprises at least two laminated contact pole modules, wherein each layer of contact pole module respectively comprises a base body, a moving contact assembly, a fixed contact assembly, an arc extinguishing grid assembly and a magnet, wherein the moving contact assembly, the fixed contact assembly and the arc extinguishing grid assembly are arranged on the base body, two groups of fixed contact assemblies of the same layer of contact pole module are simultaneously connected left or right, the fixed contact assemblies of adjacent layers of contact pole modules are alternately connected left or right, the same layer of contact pole module is provided with two groups of fixed contact assemblies, two arc extinguishing grid assemblies and four groups of magnets, the two groups of fixed contact assemblies are respectively arranged at one diagonal position of the base body, the two arc extinguishing grid assemblies are respectively arranged at the other diagonal position of the base body, and the four groups of magnets are distributed in a 40-degree sector range of the center line of the moving contact when the isolating switch is in a switching-off state and a switching-on state and are positioned above or below a track line of the corresponding moving contact from switching-on to switching-off position. The invention comprehensively utilizes various measures to improve the arc extinguishing effect of the isolating switch.

Description

Contact pole of isolating switch

Technical Field

The invention relates to the technical field of electrical equipment, in particular to an isolating switch contact pole.

Background

With the development of the photovoltaic industry, the safety problem of the photovoltaic system becomes a hotspot problem in the industry. The photovoltaic direct current switch is applied to the inverter, the working states of a plurality of core components are controlled, and the reliability of the photovoltaic direct current switch is related to good operation of the whole photovoltaic system and stable development of the photovoltaic industry. How to remotely switch off or switch on a direct current switch is a problem to be solved for a photovoltaic power station system. If the inverter works abnormally, the power supply can be cut off rapidly, so that burning accidents can be avoided, and the life and property safety of the photovoltaic power station can be protected. After the parts of the inverter are repaired, the remote control method is used for replacing the manual switch-on, so that the protection is also provided for operators of the circuit system.

The existing rotary isolating switch is basically manually operated, and the mechanical structure of the existing rotary isolating switch can meet the requirement of millisecond pole breaking, but an operator is required to manually operate to break the isolating switch after a system circuit breaks down, so that the requirement of rapidly breaking the circuit when encountering problems cannot be met, and meanwhile, the risk of the operator is increased; and after the problem is processed, manual closing is also needed. This is not only a safety hazard for the operators of the switches, but also a time benefit, such as a number of inverter burnout incidents that have occurred in recent years.

In addition, the contact structure of the existing rotary isolating switch product mainly increases an arc-extinguishing gate component and a permanent magnet to perform arc extinction, but the defects of inaccurate magnetic pole correspondence of the permanent magnet, unreasonable position arrangement of the arc-extinguishing gate component and the like generally exist, so that effective arc extinction and hot gas discharge in the switch breaking process cannot be ensured, the risk that a large amount of ions of the hot gas are attached to the inner wall of the switch to burn the switch exists, the switch performance is influenced,

aiming at the problems of the manual opening isolating switch widely used in the market at present, the improvement is needed.

Disclosure of Invention

In view of the above, the present invention aims to provide a contact pole of a disconnector with better arc extinguishing effect.

In order to solve the technical problems, the technical scheme provided by the invention is as follows:

the utility model provides an isolator contact pole, isolator includes two at least range upon range of contact pole modules, and every layer of contact pole module includes pedestal and dress in moving contact subassembly, static contact subassembly, arc extinguishing bars subassembly and the magnet of pedestal respectively, makes contact between moving contact and the static contact switch-on or separation disconnection when moving contact subassembly rotates, and wherein static contact subassembly overall arrangement mode is: the two groups of static contact assemblies of the same layer of contact pole modules are connected left or right at the same time, the static contact assemblies of the adjacent layers of contact pole modules are connected left or right alternately, when the static contact assemblies are connected left, the contact part of the static contact head and the moving contact extends to the longitudinal middle position of the base from the left side of the base, when the static contact assemblies are connected right, the contact part of the static contact head and the moving contact extends to the transverse middle position of the base from the right side of the base, the same layer of contact pole modules are provided with two groups of static contact assemblies, two arc extinguishing gate assemblies and four groups of magnets, the two groups of static contact assemblies are respectively arranged at one diagonal position of the base, the two arc extinguishing gate assemblies are respectively arranged at the other diagonal position of the base, and the four groups of magnets are distributed in the range of 40 DEG sector of the center line of the moving contact when the isolating switch is in a switching-off state and a switching-on state and are positioned above or below the track line of the corresponding moving contact from switching-on to the switching-off position.

Further, the two groups of static contact assemblies of the left contact pole module and the two groups of static contact assemblies of the right contact pole module are symmetrically distributed on two sides of the center line of the base body, and the center line of the head parts of the two groups of static contact of the left contact pole module is vertical to the center line of the head parts of the two groups of static contact of the right contact pole module.

Further, the static contact assembly comprises a static contact piece, a first end of the static contact piece is fixed at the top angle position of the base body, and a second end of the static contact piece is transversely folded out of the head of the static contact piece so as to be contacted with the moving contact or separated from the moving contact through a crack at the head of the moving contact piece entering and exiting the moving contact assembly.

Further, in the adjacent layers of contact pole modules, two arc-extinguishing gate assemblies of one layer of contact pole module are positioned at one diagonal position of the base body, and two arc-extinguishing gate assemblies of the other layer of contact pole module are positioned at the other diagonal position of the base body.

Further, in the same layer of contact pole module, each group of magnets is arranged above or below the crossing position of the moving contact center line and the moving contact path line from the switching-on position to the switching-off position when the isolating switch is in the switching-off state and the switching-on state, and four groups of magnets are in crisscross configuration.

Further, the magnets in each layer of contact pole module are tightly arranged on the base body or are arranged on the base body through an injection molding process or a riveting process; and the polarity direction of the magnets in the adjacent layers of contact pole modules is kept consistent.

Further, the arc extinguishing grid assembly group comprises an arc extinguishing frame and a plurality of grid sheets arranged on the arc extinguishing frame, an arc striking groove is arranged in the middle of each grid sheet, and a long foot part is arranged at the tail end of each grid sheet and extends into a moving track line of the head part of the moving contact.

Further, the arc frame is provided with an inner cavity, and the back of the arc extinguishing frame is provided with staggered air outlets.

Further, the base is provided with an arc-extinguishing gate assembly mounting position, and the arc-extinguishing gate assembly mounting position is provided with a plurality of gate sheet notches for accommodating and positioning corresponding gate sheets.

Further, the movable contact assembly is provided with a movable contact rotating frame and a movable contact piece arranged on the movable contact rotating frame, wherein the movable contact is formed at the end part of the movable contact piece, and a toothed protruding part is arranged on the buckling side surface of the movable contact rotating frame in a movement area from closing to opening.

Compared with the prior art, the invention improves the layout mode of devices such as a fixed contact, a magnet, an arc-extinguishing gate assembly and the like in the contact pole of the isolating switch, and further improves the structures of the arc-extinguishing gate assembly and a moving contact assembly, thereby improving the arc-extinguishing effect of the isolating switch from multiple aspects.

Drawings

FIG. 1 is a schematic diagram of an isolating switch of the present invention;

FIG. 2 is a schematic view of the disconnecting switch mechanism of the present invention after the knob is removed;

FIG. 3 is an exploded view of the top cover, base and internal mechanism of the isolator mechanism of the present invention with the knob removed;

FIG. 4 is a schematic view of a pole base of the isolating switch mechanism of the present invention;

FIG. 5 is a schematic view of a pole top cover of the isolating switch mechanism of the present invention;

FIG. 6 is a schematic diagram of the assembly of the pole top cover of the isolating switch mechanism of the present invention;

FIG. 7 is a schematic diagram of the internal mechanism of the isolating switch mechanism of the present invention;

FIG. 8 is a second schematic diagram of the internal mechanism of the isolating switch mechanism of the present invention;

FIG. 9 is a schematic diagram III of the internal mechanism of the isolating switch mechanism of the present invention;

FIG. 10 is a schematic diagram of the internal mechanism of the isolating switch mechanism of the present invention;

FIG. 11 is a schematic diagram of the internal mechanism of the isolating switch mechanism of the present invention;

FIG. 12 is a schematic view of a pole rotation mechanism of the isolating switch mechanism of the present invention;

FIG. 13 is a schematic view of the assembly of the pole energy storage buckle, the split upper buckle and the split lower buckle of the isolating switch mechanism of the present invention;

FIG. 14 is a schematic diagram of an assembly of a pole energy storage buckle and a pallet thereof according to the present invention;

FIG. 15 is a second schematic view of the assembly of the pole energy storage buckle and its pallet of the disconnecting switch mechanism of the present invention;

FIG. 16 is a schematic view of a pole energy storage buckle of the isolating switch mechanism of the present invention;

FIG. 17 is a second schematic illustration of a pole energy storage buckle of the isolating switch mechanism of the present invention;

FIG. 18 is a schematic diagram of a pole energy storage buckle pallet of the disconnecting switch mechanism of the present invention;

FIG. 19 is a second schematic view of a pole energy storage buckle pallet of the disconnecting switch mechanism of the present invention;

FIG. 20 is a schematic diagram showing an assembly of an isolating switch mechanism according to the present invention;

FIG. 21 is a schematic illustration II of an assembly of an extremely split upper clasp and an extremely split lower clasp of the isolating switch mechanism of the present invention;

FIG. 22 is a schematic illustration of an isolated switch mechanism of the present invention;

FIG. 23 is a schematic illustration of an extremely split snap-on of the isolating switch mechanism of the present invention;

FIG. 24 is a schematic illustration of an isolating switch mechanism of the present invention;

FIG. 25 is a schematic illustration of a second embodiment of an isolating switch mechanism of the present invention;

FIG. 26 is a schematic diagram of a pole energy storage latch of the isolating switch mechanism of the present invention;

FIG. 27 is a second schematic illustration of an isolating switch mechanism pole energy storage latch of the present invention;

FIG. 28 is a schematic diagram of a pole trip block of an isolating switch mechanism according to the present invention;

FIG. 29 is a second schematic diagram of a pole trip block of the isolating switch mechanism of the present invention;

FIG. 30 is a schematic diagram of a pole driver of an isolating switch mechanism according to the present invention;

FIG. 31 is a longitudinal cross-sectional view of the pole driver of the isolating switch mechanism of the present invention;

FIG. 32 is a schematic diagram of a pole driver skeleton for an isolating switch mechanism in accordance with the present invention;

FIG. 33 is a schematic diagram of a pole driver skeleton of an isolating switch mechanism according to the present invention;

FIG. 34 is a schematic view of a pole-closing foot of the isolating switch mechanism of the present invention;

FIG. 35 is a second schematic view of the pole-closing leg of the isolating switch mechanism of the present invention;

FIG. 36 is a schematic view of a pole closing foot of the isolating switch mechanism of the present invention;

FIG. 37 is a second schematic view of the pole-closing leg of the isolating switch mechanism of the present invention;

FIG. 38 is a three-dimensional schematic view of a disconnector contact pole in accordance with the present invention;

FIG. 39 is a schematic top view of the bottom gate opening of the contact pole of the disconnector of the present invention (with a stationary contact assembly removed);

FIG. 40 is a schematic top view of the bottom gate separation of the contact poles of the disconnector of the present invention;

FIG. 41 is a three-dimensional schematic view of the left contact layer of the disconnecting switch contact of the present invention;

FIG. 42 is a schematic top view of a left contact opening of an isolating switch contact according to the present invention;

FIG. 43 is a schematic top view of a left-hand contact laminated brake of the disconnector contact of the present invention;

FIG. 44 is a three-dimensional schematic view of the disconnecting switch contact pole left contact layer removal moving contact assembly of the present invention;

FIG. 45 is a schematic diagram showing the planar distribution of the static contact assembly, the arc suppressing gate assembly and the magnet of the left contact layer of the isolating switch contact;

FIG. 46 is a schematic diagram of a left contact layer static contact assembly, an arc chute assembly and a magnet plane distribution diagram II (with the movable contact assembly removed) of the disconnecting switch contact pole of the present invention;

FIG. 47 is a schematic three-dimensional view of a left contact layer base of a disconnector contact pole in accordance with the present invention;

FIG. 48 is a three-dimensional schematic view of an assembly of the left contact layer moving contact assembly, the stationary contact assembly and the arc chute assembly of the disconnecting switch contact pole of the present invention;

FIG. 49 is a three-dimensional schematic view of a disconnecting switch contact pole left contact layer static contact assembly of the present invention;

FIG. 50 is a three-dimensional schematic view of the right contact layer of the disconnecting switch contact of the present invention;

FIG. 51 is a schematic top view of a right contact layer gate of the disconnector contact of the present invention;

FIG. 52 is a top view of the right contact opening of the disconnecting switch contact of the present invention;

FIG. 53 is a three-dimensional schematic view of the disconnecting switch contact pole right contact layer removal moving contact assembly of the present invention;

FIG. 54 is a schematic diagram showing the planar distribution of the right contact layer static contact assembly, arc chute assembly and magnet of the disconnecting switch contact of the present invention;

FIG. 55 is a schematic diagram of the planar distribution of the right contact layer static contact assembly, arc chute assembly and magnet (with the moving contact assembly removed) of the disconnecting switch contact of the present invention;

FIG. 56 is a three-dimensional schematic view of a right contact base of an isolating switch contact according to the present invention;

FIG. 57 is a three-dimensional schematic view of an assembly of the right contact layer moving contact assembly, the stationary contact assembly and the arc chute assembly of the disconnecting switch contact of the present invention;

FIG. 58 is a three-dimensional schematic view of a right contact layer stationary contact assembly of an isolating switch contact of the present invention;

FIG. 59 is a three-dimensional schematic view of a disconnecting switch contact pole moving contact assembly of the present invention;

FIG. 60 is an exploded view of the disconnecting switch contact pole moving contact assembly of the present invention;

fig. 61 is a three-dimensional schematic diagram of an arc chute assembly of a disconnector contact pole in accordance with the present invention;

fig. 62 is a schematic three-dimensional view of a second embodiment of the contact arc chute assembly of the disconnector of the present invention;

fig. 63 is a three-dimensional schematic view of an arc chute assembly of a disconnector contact pole in accordance with the present invention.

Detailed Description

In the preferred embodiment of the invention, a spring pre-energy storage technology is used, the energy storage spring is pre-tensioned in the closing stage to store energy in the mechanism, and an electromagnet is directly used for triggering the tripping mechanism when remote disconnection is required. On the one hand, the response and the action time of the electromagnet are very short, and the triggering action of the opening and tripping can be completed in very short time; on the other hand, the energy storage buckle for pre-storing energy can drive the upper buckle and the lower buckle to the brake separating position at the millisecond speed.

The invention will be described in further detail with reference to the drawings and specific embodiments, but it should not be construed that the scope of the invention is limited to the embodiments described below.

1. The isolating switch assembly is shown in fig. 1-63, which illustrate the isolating switch structure of the present invention, and is described in detail below.

As shown in fig. 1, the isolating switch comprises a mechanism pole 100 and a contact pole 200, the mechanism pole 100 is provided with a knob 110, and the isolating switch is stored and switched on by rotating the knob 110, so that the isolating switch can be rapidly switched off after the stored energy is released.

The mechanism pole 100 described above uses a spring pre-charge technique to pre-charge the energy storage spring to store energy in the mechanism during the closing phase, and to directly trigger the trip mechanism with an electromagnet when remote opening is desired. On the one hand, the response and the action time of the electromagnet are very short, and the triggering action of the opening and tripping can be completed in very short time; on the other hand, the energy storage buckle for pre-storing energy can drive the upper buckle and the lower buckle to the brake separating position at the millisecond speed.

The contact pole 200 optimizes the structure and layout of the moving contact assembly, the fixed contact, the arc-extinguishing gate assembly, the magnet and other devices, and comprehensively utilizes various arc-extinguishing measures to improve the arc-extinguishing effect.

The mechanism pole 100 and the contact pole 200 are described in detail below.

2. As shown in fig. 2-37, the isolating switch mechanism pole 100 is a shell formed by a base 16 and a top cover 17, and a back mechanism such as a rotary motion and a brake separating drive is installed in the shell, wherein the internal mechanism comprises a main shaft 1, an energy storage spring 2, an energy storage buckle 3, a brake separating and closing buckle 4, a brake separating and closing spring 5, a brake separating and closing lower buckle 6, an energy storage lock catch 7, a tripping block 8, a driver 9, a brake closing supporting foot 10, a brake separating supporting foot 11, a brake separating and closing micro switch 13, a circuit board 15 and other devices, and the devices are combined to form different mechanisms. Here, a control box 12 is disposed at one side below the base 16, and related circuit boards are installed inside the control box; the inner cavity 161 at one side of the base 16 is provided with a rotary action mechanism, wherein the opening and closing lower buckle 6 passes through the shaft coupling hole 163 of the base 16 and is in shaft coupling with the contact pole 200, and in addition, a shaft seat 165 and a shaft seat 166 are reserved in the inner cavity 161 to position and install the driving block 8 and the energy storage lock catch 7; the other side cavity 162 is provided with an electromagnetic driver 9 so as to realize automatic opening and tripping. The mechanism pole and the contact pole of the present invention will be described below.

The energy storage spring 2, the energy storage buckle 3, the split upper buckle 4, the split upper buckle 5 and the split lower buckle 6 are coaxially sleeved on the main shaft 1, the split upper buckle 4 and the split lower buckle 6 are buckled into a whole, wherein the energy storage buckle 3 and the energy storage buckle supporting plate 14 are circumferentially positioned with the main shaft 1 through an energy storage buckle end pin 19 and an energy storage buckle long pin 20, the split upper buckle 4 is circumferentially positioned with the main shaft 1 through a split pin 21, a knob 110 is arranged at the top end of the main shaft 1, the knob pin 18 is circumferentially positioned between the split upper buckle 4 and the split lower buckle 6, and the main shaft 1 can drive the energy storage buckle 3, the split upper buckle 4 and the split lower buckle 6 to rotate through rotating the knob 110.

The energy storage spring 2 and the energy storage buckle 3 form an energy storage mechanism, two ends of the energy storage spring 2 can respectively apply force to the shell and the energy storage buckle 3, and the energy storage buckle 3 is rotated to stretch the energy storage spring 2 for energy storage; otherwise, the energy storage buckle 3 is pushed to rotate reversely by the energy storage spring 2 when energy is released. Here, the energy storage buckle 3 is provided with an energy storage buckle supporting plate 14, and the two are buckled together to keep the stability of the energy storage buckle 3.

The split upper buckle 4, the split spring 5 and the split lower buckle 6 form a split mechanism, wherein the split upper buckle 4 and the split lower buckle 6 are buckled into a whole, the split lower buckle 6 is externally connected with a movable contact (not shown in the figure) in the contact pole 200, and the split spring 5 is applied to the split upper buckle 4 and the split lower buckle 6. After energy storage, the opening and closing spring 5 is stretched after the opening and closing button 4 is rotated, so that the opening and closing lower button 6 is driven to rotate clockwise to perform closing operation; when releasing energy, the energy storage buckle 3 rotates reversely to drive the opening and closing buckle 4 and the opening and closing lower buckle 6 to rotate reversely so as to perform opening and closing operation.

The energy storage lock catch 7, the tripping block 8 and the driver 9 form a tripping mechanism, wherein the energy storage lock catch 7 is positioned outside the closing support leg 10 to restrain the closing support leg 10, when energy storage is released, the energy storage lock catch 7 rotates outwards to drive the closing support leg 10 to rotate outwards, so that the closing support leg 10 is used for unlocking the locking of the opening lower buckle 6 to automatically open, namely, the energy storage lock catch 7 locks the energy storage buckle 3 when the energy storage is completed, the energy storage lock catch 7 unlocks the energy storage buckle 3 when the energy storage is released, and the energy storage buckle 3 drives the opening upper buckle 4 and the opening lower buckle 6 to rotate reversely under the action of the restoring force of the energy storage spring 2, so that the opening lower buckle 6 is separated from the moving contact to rapidly open the brake.

The closing foot leg 10 and the opening foot 11 are respectively used for locking and unlocking in a closing state or an opening state, can respectively rotate around the shaft of the closing foot 10 and the opening foot 11, and are respectively provided with reset springs, wherein each reset spring is arranged between the opening and closing lower buckle 6 and the base 16 to apply pressure to the opening and closing lower buckle 6 so as to be used for locking and unlocking the opening and closing lower buckle 6 in the corresponding state, and thus, the correct action time sequence of the opening and closing lower buckle 6 is ensured.

The closing support leg 10 has a manual opening state and an automatic opening state, the closing support leg 10 is pushed outwards by rotating the opening and closing button 4 to release the locking of the opening and closing button 6 during manual opening, and the energy storage lock catch releases the constraint of the closing support leg 10 to release the locking of the opening and closing button during automatic opening; the opening leg 11 has a manual closing state, and after a lapse of time from the start of manual closing, the opening leg 11 is pushed outward by the rotation of the opening and closing button 4 to release the lock of the opening and closing button 6.

Here, when the switch is closed, the isolating switch is in an OFF state and is used as an initial position, in the OFF state, the main shaft 1 is rotated to drive the split upper buckle 4 to rotate, after the split upper buckle 4 rotates for a certain angle, the split brake supporting leg 11 is pushed away by the split upper buckle 4, and therefore the split lower buckle 6 also rotates in a following way, namely, the split brake supporting leg 11 and the split lower buckle 6 have certain delay relative to the closing rotation time of the split upper buckle 4. Similarly, when the brake is manually opened, the brake is opened by rotating the opening and closing button 4 through the main shaft 1, and the brake opening supporting foot 10 is released by pushing the opening and closing button 4, so that a certain delay exists in the brake opening supporting foot 10. On the other hand, the switching-on supporting leg 10 is instantly and directly released by the energy storage lock catch 7 during automatic switching-off, so that the problem of time delay is avoided.

The opening and closing micro switch 13 forms an isolating switch state detection device, and the opening and closing micro switch 13 is welded on the circuit board 15 to receive the energy storage detection signal and the opening and closing detection signal and transmit the energy storage detection signal and the opening and closing detection signal to the control system for monitoring. In addition, an energy storage micro switch detection device can be further arranged to detect the energy storage state of the isolating switch. Therefore, the energy storage state and the opening and closing state of the isolating switch can be detected and fed back to the system, so that the system can conveniently and timely and effectively monitor the operation state of the isolating switch, and the operation state is further described below.

The isolating switch mechanism pole and components of the present invention are described in detail below with reference to fig. 2-37.

As shown in fig. 2 to 25, the top cover 17, the energy storage buckle 3, the energy storage spring 2, and the like are assembled. The top cover 17 is provided with a main shaft hole 170, the main shaft 1 passes through the main shaft hole 170, the top end of the main shaft 1 is exposed out of the top cover 17, and a knob is arranged at the top end of the main shaft 1 and is positioned through a knob pin 18; the top cover 17 is provided with a main shaft limiting pin groove 177, and after the main shaft limiting pin 19 passes through the main shaft 1, two ends of the main shaft limiting pin 19 are accommodated in the main shaft limiting pin groove 177, so that the rotation angle of the knob 18 to the main shaft 1 is limited. The energy storage spring 2 is sleeved on the central column around the main shaft hole 170 of the bottom wall of the top cover, and the bottom wall of the top cover 17 is also provided with an energy storage spring groove 171, so that the energy storage spring 2 is arranged on the top cover 17. The energy storage is detained 3 and is located energy storage spring 2 below, and energy storage is detained 3 main shaft hole 30 cover and is packed into main shaft 1, and energy storage is detained 3 bottom surface and is set up two energy storage and detain drive piece 31, and after energy storage round pin 20 passed main shaft 1, the corresponding energy storage of both ends of energy storage round pin 20 respectively can butt joint detain drive piece 31, and energy storage is detained 3 and is located on main shaft 1 like this to can make energy storage detain 3 can link with main shaft 1. Here, the energy storage buckle supporting plate 14 can be additionally installed to support the energy storage buckle 3, so that the stability of the energy storage buckle 3 is ensured. In addition, the top cover 17 is further provided with a feature part such as an energy storage buckle limiting block 172, an energy storage buckle shaft hole 173, a tripping block shaft hole 174, a driver limiting frame 175, a switcher shaft hole 176 and the like, so that related components can be positioned or limited.

The energy storage spring 2 is sleeved on a central column around the main shaft hole 170 of the top cover 17, one foot of the energy storage spring 2 is arranged in the energy storage spring groove 171 on the top cover 17 to limit the movement of the energy storage spring 1, and the other foot of the energy storage spring 2 is abutted against the side face 35a of the energy storage buckle spring pushing block 35 arranged on the top surface of the energy storage buckle 3. When the energy storage buckle 3 rotates clockwise, the energy storage buckle spring pushing block 35 stretches the energy storage spring 2 to store energy. When the energy storage is released, the energy storage buckle 3 is pushed by the energy storage spring 2 to rotate reversely. Because the force of the energy storage spring 2 is very big when the energy storage is released, the energy storage buckle 3 rotates anticlockwise rapidly, and after the brake separating action is completed, the action needs to be stopped in time so as to avoid the brake separating excessively, therefore, corresponding matching characteristics are arranged on the top cover 17 and the energy storage buckle 3, in particular, the top cover is provided with the energy storage buckle limiting block 172, and the other side face 35b of the energy storage buckle spring pushing block is a limiting surface, so that the reversing angle of the energy storage buckle 3 is limited.

It can be understood that the energy storage buckle 3 needs to be locked when the energy storage buckle is switched on or switched off, and needs to be unlocked when the energy is released, which is realized through the energy storage buckle lock 7. For this purpose, an energy storage latch hook 32 is provided on the side of the energy storage latch 3, and can be locked by the energy storage latch 7 when energy storage is completed, and unlocked by the energy storage latch 7 when energy is released. After the isolating switch is tripped, the isolating switch needs to be manually and clockwise to complete the action of closing and storing energy, wherein when the isolating switch is closed, the knob 110 rotates the main shaft 1 clockwise through the knob pin 18; simultaneously, the split pin 21 and the energy storage pin 20 which are inserted on the main shaft 1 also start to rotate clockwise, and then the split pin 21 pushes the split upper turnbuckle 4 and the split lower buckle 4 to realize closing, and the energy storage pin 20 pushes the energy storage buckle 3 to realize energy storage action.

Further, in order to detect the energy storage state, an energy storage detection push block 34 may be disposed on the bottom surface of the energy storage buckle 3, and when the energy storage buckle 3 moves to the energy storage detection position, an energy storage micro switch (not shown) may be triggered to send an energy storage detection signal, so that the energy storage state is convenient to be monitored.

In this embodiment, the energy storage buckle 3 is provided with an energy storage buckle supporting plate 14, which is provided with corresponding inner holes 140, limiting parts 141, 142, 144, limiting grooves 143, and the like, so as to be buckled with the energy storage buckle 3, wherein the opening driving block 33 on the energy storage buckle 3 passes through the limiting grooves 143 of the energy storage buckle supporting plate 14 downwards so as to be matched with the opening pushing block 62 of the opening and closing lower buckle 6.

In the invention, the energy storage buckle 3 is associated with the split upper buckle 4 and the split lower buckle 6, wherein the split lower buckle 6 can partially penetrate through the split upper buckle 4, so that the energy storage buckle 3 can drive the split lower buckle 6. Specifically, the top surface of the opening and closing lower buckle 6 is provided with an opening and closing push block 62, the bottom surface of the energy storage buckle 3 is provided with an opening and closing drive block 33, and the energy storage buckle 3 is associated with the opening and closing lower buckle 6 through the cooperation of the opening and closing drive block 33 and the opening and closing push block 62. When the stored energy is released, the opening driving block 33 on the energy storage buckle 3 hits the side surface 62a of the opening pushing block 62 on the opening and closing lower buckle 6 so as to drive the opening and closing lower buckle 6 to reversely rotate to perform opening.

The split upper button 4 and the split lower button 6 can be combined into a whole. Specifically, the split upper buckle 4 is provided with a buckle cavity 44, and the upper part of the split lower buckle 6 is buckled into the buckle cavity 44, so that the split upper buckle 4 and the split lower buckle 6 are combined into a whole. Wherein the split upper buckle 4 is provided with a main shaft hole 40 and an upper buckle pin groove 41, the split lower buckle 6 is provided with a main shaft hole 60, the main shaft 1 is coaxially arranged behind the main shaft hole 40 and the main shaft hole 60, and after the split pin 21 passes through the main shaft 1, the end part of the split pin 21 is accommodated in the upper buckle pin groove 41 for limiting.

The split spring 5 is disposed between the split upper buckle 4 and the split lower buckle 6, so that two feet of the split spring 2 respectively apply force to the split upper buckle 4 and the split lower buckle 6, and the specific installation mode is as follows. The opening and closing lower buckle 6 is provided with a lower buckle spring cavity 61 for accommodating the opening and closing spring 5, the top surface of the opening and closing lower buckle 6 is provided with a lower buckle spring push block 63, the opening and closing buckle is provided with an upper buckle spring push block 42, and two feet are clamped between the side surfaces 63a and 63b of the lower buckle spring push block 63 and the side surfaces 42a and 42b of the upper buckle spring push block 42 at the same time of opening and closing the spring 5, wherein the lower buckle spring push block 63 is positioned at the inner side of the upper buckle spring push block 42. The opening and closing lower buckle 6 is locked by the opening supporting foot 11 when the opening is completed and the opening is kept; when the closing starts, the opening and closing lower buckle 6 is locked by the opening and closing supporting leg 11, and the opening and closing upper buckle 4 stretches the opening and closing spring 5 to store energy; when the opening and closing button 4 rotates to a certain angle, the opening and closing push block 45 on the opening and closing button 4 pushes the opening and closing supporting leg 11 away, so that the opening and closing lower button 6 is unlocked, and at the moment, the opening and closing spring 5 pushes the opening and closing button 4 to rapidly rotate to close; the closing is completed and the state is kept, and the opening and closing lower buckle 6 is locked by the closing supporting leg 10; when the opening starts, the closing support leg 10 is released, and the opening and closing button 4 and the opening and closing lower button 6 are simultaneously reversed to realize opening. Here, in order to realize opening and closing, an opening and closing lock groove is provided at the bottom of the opening and closing lower button 6, and a side surface 64a thereof cooperates with the closing leg 10 to perform opening and closing locking or unlocking, and a side surface 64b cooperates with the closing leg 11 to perform opening and closing locking or unlocking.

In order to realize the association of the opening and closing lower buckle 6 and the energy storage buckle 3, the opening and closing lower buckle 6 is provided with an opening and closing push block 62 on the top surface, and meanwhile, the opening and closing upper buckle 4 is provided with an annular opening and closing push block through groove 43, and the opening and closing push block 62 penetrates through the opening and closing push block through groove 43 and is partially exposed, so that the opening and closing upper buckle 4 and the opening and closing lower buckle 6 are associated together, and can be linked with the main shaft 1, wherein the opening and closing upper buckle 4 and the opening and closing lower buckle 6 have a certain phase difference in rotation due to the fact that the opening and closing push block through groove 43 is wider than the opening and closing push block 62. Since the opening push block 62 is partially exposed from the opening push block passing groove 43, the opening driving block 33 on the energy storage buckle 3 can strike the side surface 62a of the opening push block 62 on the opening lower buckle 6 when the energy storage is released, so that the opening lower buckle 6 can be driven to rotate reversely, and the opening operation is further performed by the opening lower buckle 6, wherein the energy storage buckle 3 can only strike the side surface 62a of the opening push block 62, but cannot strike the other side surface of the opening push block 62.

In the invention, a lower buckle joint 68 with a groove key 65 is arranged at the bottom of a split lower buckle 6, and lower buckle movable grooves 66a and 66b and lower buckle limit stops 67a and 67b are arranged at the periphery of the lower buckle joint 68. The lower button joint 68 is connected with the movable contact in the contact pole 200 by a shaft, and when the opening and closing lower button 6 rotates, opening and closing operations can be performed. Because the bottom of the split lower button 6 is provided with the split lower button limiting part, the two side surfaces 67a and 67b of the split lower button are matched with the corresponding limiting parts 164 on the base of the shell, so that the rotation angle of the split lower button 6 can be limited.

In the embodiment of the present invention, the split-and-close button 4 is provided with a button reinforcing structure 46 for the button spring push block 42, which is an inverted T-shaped structure, the top 461 of the button reinforcing structure 46 is connected with the top of the button spring push block 42, and split-and-close spring leg movable grooves 47a and 47b respectively accommodating two legs of the split-and-close spring 5 are respectively provided between the button reinforcing structure 46 and the button spring push block 42, and the two split-and-close spring leg movable grooves 47a and 47b are approximately symmetrical with respect to the button spring push block 42. When the split upper buckle 4 and the split lower buckle 6 are assembled and buckled into a whole, two feet of the split spring 5 are clamped on the lower buckle spring push block 63 and the upper buckle spring push block 42 at the same time and are respectively accommodated in corresponding split spring foot movable grooves 47a and 47b.

In order to realize automatic opening, the invention is provided with an automatic tripping mechanism, which can release the energy storage lock catch 7 from the energy storage lock catch 3, so that the energy storage spring 2 is released to drive the energy storage lock catch 3 to rotate reversely, and further drive the opening and closing lock catch 4 and the opening and closing and lower lock catch 6 to rotate reversely, so that opening can be carried out, and the invention is described in detail below.

The automatic brake opening is realized by driving the tripping block 8 through the driver 9 so as to toggle the energy storage lock catch. The main body of the driver 9 is fixedly arranged on a shell of the isolating switch, the tripping block 8 is rotatably arranged on the shell through a tripping block shaft hole 80, the energy storage lock catch 7 is rotatably arranged on the shell 16 through an energy storage lock catch shaft hole 70, the tripping block 8 and the energy storage lock catch 7 are respectively provided with a reset spring, a first end of the tripping block 8 is connected with the driver 9, a second end of the tripping block 8 is connected with the energy storage lock catch 7, the energy storage lock catch 7 can be connected with the energy storage lock catch 3 of the isolating switch in a combined or separated way, and when the driver 9 is started, the tripping block 8 is driven to rotate to drive the energy storage lock catch 7 to rotate so as to cancel the constraint on the energy storage lock catch 7 and separate the energy storage lock catch 7 from the energy storage lock catch 3; thereby realizing automatic brake separation.

As shown in fig. 26-34, the shaft hole 70 of the energy storage lock 7 is installed in the energy storage lock shaft so as to rotate the energy storage lock 7, wherein the energy storage lock 7 is positioned through two holes, the lower hole surface of the energy storage lock 7 is matched with the plane of the base 16, and the upper hole surface of the energy storage lock 7 is matched with the top cover 17. The energy storage lock 7 is configured with a return spring for resetting, that is, the slot between the two holes is provided with the energy storage lock return spring, one leg of the energy storage lock return spring is lapped on the shell, and the other leg of the energy storage lock return spring is lapped on the spring lap joint part 74 of the energy storage lock 7, so that the energy storage lock 7 always has a force for moving towards the energy storage lock 3. The inside of energy storage hasp 7 sets up energy storage latch hook 71, and it is with the energy storage of energy storage knot 3 side detains latch hook 32 cooperation, locks energy storage knot 3 when energy storage is accomplished, unlocks energy storage knot 3 through energy storage hasp 7 when releasing energy. The other side of the energy storage lock 7 is provided with an energy storage lock shifting block 72 which is connected with the trigger button 8. In addition, a closing foot matching part 73 is arranged on the back surface of the outer side of the energy storage lock catch 7, and when the energy storage lock catch 7 rotates outwards, the closing foot 10 is pushed open.

The trip block 8 is rotatably mounted to the housing through a shaft hole 80. The trip block 8 is provided with a trip block reset spring, one foot of which is lapped on the shell, and the other foot of which is lapped on a spring lap part 81 of the trip block 8, so that the trip block 8 always has a force for moving towards the energy storage buckle 3. An energy storage lock catch overlapping part 82 is arranged on one side of the tripping block 8, and the energy storage lock catch shifting block 72 is arranged in a groove of the energy storage lock catch overlapping part 82, so that reliable overlapping of the energy storage lock catch 7 and the tripping block 8 is realized. The other side of the trip block 8 is provided with a driver coupling groove 83 for coupling the driver 9. When the driver 9 is started, the tripping block 8 is driven to rotate, and then the energy storage lock catch 7 is driven to rotate, so that the constraint on the energy storage lock catch 7 is canceled, and the energy storage lock catch 7 is separated from the energy storage lock catch 3, because the closing foot release block 104 is positioned at the closing foot matching part 73 on the back surface of the energy storage lock catch 7, when the energy storage lock catch 7 rotates outwards, the closing foot release block 104 rotates outwards to release locking, and further opening can be performed.

Referring to fig. 30-34, the present invention employs an electromagnetic driver, which includes a frame 93, a first yoke 91, a second yoke 92, a first coil 94, a second coil 95, a first magnet 99, a second magnet 910, a movable core 96, a first stationary core 97, a second stationary core 98, a pull rod 90, etc., wherein the first magnet 99, the second magnet 910 are mounted in a magnet mounting groove 932 in the middle of the frame 93, and the first coil 94 and the second coil 95 are wound in coil winding grooves 931 on both sides of the frame 93; the first magnet yoke 91 is a U-shaped plate, the second magnet yoke 92 is an end plate, and the two magnet yokes form an enclosing structure on the framework 93; the movable iron core 96 is arranged on the pull rod 90 and penetrates through the inner cavity 930 of the framework 93, and the first stationary iron core 97 and the second stationary iron core 98 are fixedly arranged at two ends of the inner cavity 930 of the framework 93; the end of the pull rod 90 is connected with the tripping block 8, the pull rod 90 is fixed with the movable iron core 96, the end of the pull rod 90 is provided with a T-shaped head, the T-shaped head is clamped in the driver connecting groove 83, the connection between the driver 9 and the tripping block 8 is conveniently realized, the tripping block 8 is driven to rotate through the action of the movable iron core 94, the energy storage lock catch 7 is driven to rotate, the energy storage lock catch 7 is separated from the energy storage lock catch 3, and therefore quick brake separation is realized.

In the invention, the coil outgoing line of the driver 9 is connected to the circuit board 15, the circuit board 15 is led to the wiring terminal, when the external connection terminal passes through the voltage signal, the corresponding coil is powered, and under the action of electromagnetic force, the movable iron core 96 can move transversely to the corresponding side static iron core until the movable iron core is completely attached, thereby stopping the movement. When the tripping is performed, the tripping block 8 rotates anticlockwise around the shaft under the pulling of the pull rod 90 until the energy storage lock catch 7 is separated from the hasp surface of the energy storage lock catch overlap joint part 83, the energy storage lock catch 7 is released, and meanwhile, the energy storage lock catch 3 is released. When the energy storage lock catch 7 is released, the energy storage lock catch 7 rotates clockwise under the pushing action of the energy storage lock catch 3, and in the rotating process, the closing support leg 10 is pushed to unlock, so that the reaction force of the opening and closing spring 5 to the energy storage spring 2 is avoided when the energy storage spring 2 is released. When the energy storage buckle 3 is released, the energy storage buckle rapidly rotates anticlockwise under the action of the energy storage spring 2, and the extending arm of the opening and closing lower buckle 6 is slapped, the opening and closing lower buckle 6 rapidly rotates, and the contact of the contact pole is driven to rapidly open, so that the opening and closing action is completed.

It can be understood that the isolating switch needs to be locked or unlocked when being switched on or off, and for this purpose, the side surface of the switching-on/off lower buckle 6 is respectively provided with a switching-on supporting leg 10 and a switching-off supporting leg 11. At this time, the opening and closing lower button 6 is provided with an opening and closing lock groove 64 on a side surface thereof, and both side surfaces 64a and 64b of the opening and closing lock groove 64 are engaged with the closing leg 10 and the opening and closing leg 11 to lock and unlock, respectively, as will be described further below.

In the invention, the opening and closing button 4 is provided with an opening and closing push block 45, and two sides of the opening and closing push block are respectively provided with a guide surface 45a and a guide surface 45b, so that the opening and closing push block 45 enters corresponding matching parts of the opening and closing supporting leg 10 or the opening and closing supporting leg 11 to push the opening and closing supporting leg 10 or the opening and closing supporting leg 11 outwards, thereby unlocking the opening and closing lower button 6. In the invention, the locking of the opening and closing support leg 11 is released through the opening and closing push block 45 during manual opening and closing, and the locking of the opening and closing support leg 10 is released through the opening and closing push block 45 during manual opening and closing; particularly, under the condition of automatic switching-off, the isolating switch can be automatically tripped to release energy storage, at the moment, the energy storage lock catch 7 and the energy storage buckle 3 are unlocked, and the switching-on supporting legs 10 are driven to rotate outwards, so that the locking of the switching-on supporting legs 10 is directly released, and at the moment, the switching-on and switching-off pushing block 45 is not required to act. The following is further described.

As shown in fig. 34 to 35, the closing foot 10 has a shaft hole 210 which is fitted into a positioning shaft on the housing so that the closing foot 10 rotates. The closing leg 10 is provided with a closing leg spring which is sleeved on the closing leg spring mounting column 105, one leg of the closing leg spring passes through the groove 106, and the other leg passes through the groove 107, so that the closing leg spring can respectively act on the shell and the closing leg 10, and thereby inward pressure is provided for the closing leg 10. The supporting leg part of the closing supporting leg 10 is of a step shape, the upper part is an upper buckling matching part, the lower part is a lower buckling matching part, wherein the inner side surface of the upper buckling matching part is an upper buckling driving surface 102, and the end surface of the lower buckling matching part is a lower buckling limiting surface 103. When the closing is completed and the state is maintained, the lower button limiting surface 103 abuts against the side surface 64a of the opening and closing locking groove 64 of the opening and closing lower button 6 to realize closing locking. Here, the top of the closing leg 10 has a closing leg release block 104, which is attached to the closing leg matching portion 73 on the back of the energy storage lock catch 7, when the energy storage is released, the energy storage lock catch 7 rotates outwards, and drives the closing leg release block 104 to rotate outwards at the same time, so that the lower buckle limiting surface 103 is separated from the side surface 64a of the opening and closing locking groove 64 of the opening and closing lower buckle 6, and the locking of the opening and closing lower buckle 6 is released, so that the opening and closing operation can be further performed. When the manual trip is performed, the closing leg 10 is pushed out and unlocked by opening and closing the opening and closing push block 45 on the upper buckle 4.

As shown in fig. 36 to 37, the brake separating leg 11 has a shaft hole 111 which is fitted into a positioning shaft on the housing so that the brake separating leg 11 rotates. The opening foot 11 is provided with an opening foot spring which is sleeved on the opening foot spring mounting column 115, one foot of the closing foot spring passes through the groove 114, and the other foot passes through the groove 116, so that the opening foot spring can respectively apply force on the shell and the opening foot 11, thereby providing inward pressure for the opening foot 11. The supporting leg part of the brake separating supporting leg 11 is of a ladder shape, the upper part is an upper buckling matching part, the lower part is a lower buckling matching part, wherein the inner side surface of the upper buckling matching part is an upper buckling driving surface 112, and the end surface of the lower buckling matching part is a lower buckling limiting surface 111. When the opening is completed and kept, the lower buckle limiting surface 111 props against the side surface 64b of the opening locking groove 64 of the opening and closing lower buckle 6 to realize opening locking; after the switching-on starts, the switching-off and switching-on pushing block 45 pushes the switching-off supporting leg 11 outwards through the upper buckle driving surface 112, so that the lower buckle limiting surface 111 is separated from the side surface 64b of the switching-off locking groove 64, and the switching-off supporting leg is unlocked and can be switched on further. In addition, the tail of the opening foot 11 is provided with an opening detection pushing block 117, which can press and touch an opening triggering part of the opening micro switch 13 to trigger the opening micro switch 13 to act.

The working process of the isolating switch is as follows: the opening and closing button 4 and the main shaft 1 realize opening and closing actions together under the action of the opening and closing pin 21; when the switch-on is performed, one leg of the switch-on spring 5 is lapped on the switch-off lower buckle 6, the other leg starts to stretch under the action of the switch-on lower buckle 4 on the clamping position of the switch-on lower buckle 4, and the switch-on lower buckle 6 starts to rotate until the switch-on push block 45 starts to push the switch-on support leg 11, the switch-on spring 5 is released instantly, and the switch-on lower buckle 6 rotates instantly to realize switch-on; after the closing is in place, the closing foot 10 realizes inner buckling under the action of a spring, the supporting foot surface of the closing foot is contacted with the opening and closing lower buckling surface, and the closing foot is tightly matched under the action of the opening and closing spring 5; similarly, when the brake is opened, the opening and closing button 4 rotates in a reverse clock, the opening and closing spring 5 starts to stretch under the action of the opening and closing button 4, the opening and closing lower button 6 starts to rotate until the opening and closing push block 45 starts to push the closing supporting foot 10, the opening and closing spring 5 is released instantaneously, and the opening and closing lower button 6 rotates instantaneously to realize the brake opening.

The above preferred embodiment of the present invention discloses an automatic opening and closing disconnector mechanism which may be arranged laterally above the switch, wherein the driving means is an electromagnet of sufficient impact force to rapidly impact the switch component latching elements upon receipt of a signal to open the circuit. The isolating switch is automatically opened after the energy storage of the spring, and is different from the opening of the isolating switch by directly using a motor mechanism to drive a main shaft, wherein the lock catch of the switch is pushed by using an electromagnet, the spring with energy stored in advance drives a tripping mechanism to perform quick breaking action, and the integral breaking time is completed within 20 ms. The isolating switch can realize the purpose of remotely disconnecting the inverter system loop without manual operation when the circuit system of the inverter encounters special working conditions such as overload, short circuit and the like, wherein the switch with the automatic disconnecting mechanism can not be influenced by the automatic disconnecting mechanism when the related electric life, mechanical life and the like are tested, and can also perform closing action in an automatic state.

3. Isolation switch contact the isolation switch contact of the present invention utilizes a number of measures in combination to improve the arc suppressing effect, as described in detail below.

Referring to fig. 38-63, the contact pole 200 of the isolating switch of the present invention is formed by stacking one or more contact pole modules 210, wherein the structure of each layer is the same except for the base of the bottom contact pole module 210g, and the static contact of each contact pole module 210 is left-connected or right-connected, wherein the left contact pole module is denoted by 210l, and the right contact pole module is denoted by 210r (the bottom contact pole module 210g is also actually a right-connected module).

Each contact pole module 210 includes a base 201, a moving contact assembly 202, a fixed contact assembly 203, an arc extinguishing gate assembly 205 and a plurality of magnets 204 (preferably permanent magnets, such as magnetic steel) mounted on the base 201, and when the rotating frame of the moving contact assembly rotates, the moving contact is driven to rotate, so that the contact between the moving contact head 20231 and the fixed contact head 20311 is conducted or separated, and thus, switching on or switching off is performed, wherein the arc extinguishing gate assembly 205 and the magnets 204 play a role of arc extinguishing.

The left contact pole module 210L and the right contact pole module 210R have substantially the same structure, the left seat body 201L and the right seat body 201R are assembled in a fastening combination manner, the middle of the seat body 2011 is provided with a moving contact mounting hole 2012 for mounting the moving contact assembly 202, and the seat body 2011 is further provided with a static contact assembly mounting position 2013, a magnet mounting position 2014 and an arc extinguishing grid assembly mounting position 2015, but the positions of the mounting positions are different, in particular, the positions are arranged in a bilateral symmetry manner.

In this embodiment, the present invention improves the arc extinguishing effect by improving the layout of the magnets and the structure and layout of the arc extinguishing gate assembly, as described below.

Specifically, the magnets 204 of the invention are distributed in the range of 40 degrees of the sector of the center line of the moving contact when the isolating switch is in the opening state and the closing state; at the same time, the tail ends of the grid segments 2051 of the arc chute assembly 205 are provided with long feet 20512 to extend into the motion trajectory of the moving contact head 20231.

As shown in fig. 38 to 58, a plurality of sets of magnets 204 are provided on a base 201 in the present embodiment, and each set of magnets 204 is tightly disposed on the base 201; alternatively, each set of magnets 204 is mounted to the housing 201 by an injection molding process or a riveting process. The magnets 204 are arranged in the following manner: the plurality of groups of magnets 204 are distributed in the range of 40 degrees of the center line L3 or L4 of the movable contact when the isolating switch is in the opening state and the closing state. Further, four sets of magnets 204 are mounted on the base 201 of each layer of contact pole module 210, and the four sets of magnets 204 are disposed in a range of 40 ° of the center line of the moving contact when the isolating switch is in the four opening states and the closing states in a crisscross manner, wherein each set of magnets 204 is disposed in a range of 40 ° of the center line of the moving contact when the isolating switch is in the opening states and the closing states and is located above or below a track line of the moving contact from the closing position to the opening position. Further, each magnet 204 is located above or below the intersection position of the moving contact centerline L3 in the switch-off state or the moving contact centerline L4 in the switch-on state and the moving contact trajectory line from the switch-on position to the switch-off position. In this way, the present invention can better improve the arc extinguishing effect by providing the magnets 204 at the closing and opening positions, respectively, to perform arc extinguishing.

In this embodiment, the contact pole modules 210 of the present invention are multi-layered, the stationary contact assemblies 203 of each contact pole module 210 are left-connected or right-connected, and the stationary contact assemblies 203 of adjacent contact pole modules 210 are right-connected or left-connected, respectively, wherein the magnetic directions of the magnets 204 between the adjacent contact pole modules 210 are kept consistent.

Meanwhile, the invention further improves the arc extinguishing effect through the arrangement and the structure of the arc extinguishing gate assembly, and the arc extinguishing effect is explained as follows.

As shown in fig. 38 to 63, two arc-extinguishing gate assemblies 205 are disposed on a base 201 of a contact pole module 210 in the same layer, and spaces between the arc-extinguishing gate assemblies 205 and the base 201 and the moving contact assemblies 202 constitute arc-extinguishing gate assemblies. Here, the two arc chute assemblies 205 are respectively disposed at the other diagonal positions of the base 201; in the adjacent layer of contact pole modules 210, the two arc-extinguishing gate assembly assemblies 205 of one layer of contact pole modules 210 are located at one diagonal line L1 of the base body, the two arc-extinguishing gate assemblies of the other layer of contact pole modules 210 are located at the other diagonal line L2 of the base body 201, that is, the arc-extinguishing gate assembly assemblies 205 of the adjacent layer are alternately arranged, and the air outlets thereof are also alternately arranged. The advantage of this is that: the upper layer and the lower layer of the arc discharge area are staggered when the arc discharge area is disconnected, and the air outlets are staggered, so that not only can a great amount of combustible gas be avoided from being generated due to local overheating, but also the arc discharge of the air outlets can be avoided from being in short circuit, the same layer of contact electrode module 210 comprises two arc extinguishing gate assembly assemblies 205, the two arc extinguishing gate assembly 205 are distributed on one diagonal line L1 or L2 of the base, and the two static contact assemblies 203 are distributed on the other diagonal line L2 or L1 of the base; in the adjacent contact pole modules 210, two arc-extinguishing gate assembly assemblies 205 of one contact pole module 210 are distributed on one diagonal line of the base 201, and two arc-extinguishing gate assembly assemblies 205 of the other contact pole module 210 are distributed on the other diagonal line of the base 201

As shown in fig. 61-63, the arc extinguishing grid assembly 205 includes an arc extinguishing frame 2052 and a plurality of grid plates 2051, the grid plates 2051 are mounted on the arc extinguishing frame 2052 for positioning, and each grid plate 2051 is partially positioned in a moving track line of the moving contact head, specifically, a long foot portion 20512 is arranged at the tail end of the grid plate 20511, and the long foot portion 20512 extends into the moving track line of the moving contact head 20231. Therefore, the electric arc can be introduced into the arc-extinguishing gate assembly, and the arc-extinguishing gate assembly achieves better effect. The arc extinguishing grid assembly comprises a plurality of grid pieces 2051, wherein the gaps among the grid pieces 2051 are 0.8-2 mm; an arc striking groove 20511 is arranged in the middle of each grid piece 2051, which is helpful for elongating the arc and raising the arc voltage; in addition, the tail end of the grid 2051 is provided with a long foot 20512 that extends into the moving contact head motion trajectory to help direct the arc into the arc chute assembly for more efficient arc extinction. Since the grid 2051 is a plurality of pieces, the arc extinguishing grid assembly mounting positions 2015 for placing the grid 2051 are correspondingly arranged on the base 201, and are provided with a plurality of grid notches for positioning the corresponding grid 2051, so that the grid 2051 is fixed, and the grid 2051 is prevented from being scattered after being burned or being burned to be adhered by an electric arc. As shown in fig. 61-63, the arc chute 2052 is provided with an internal chamber that allows the arc to move within the chamber and cannot overrun the back of the arc chute 2052 to create a back breakdown; meanwhile, the back of the arc extinguishing frame 2052 is provided with air outlets 20521 which are arranged in a staggered mode, and exhaust and heat dissipation are facilitated.

In addition, the invention further improves the arc extinguishing effect by the static contact structure and the layout mode, and the description is as follows.

As shown in fig. 38 to 58, the left stationary contact assembly 203L and the right stationary contact assembly 203R in this embodiment respectively include a stationary contact 31, a first end of the stationary contact 31 is fixed at a top angle position of the base 2011, and a second end of the stationary contact 31 is folded laterally out of the stationary contact head 20311 to contact the moving contact head 20231. Specifically, the first end of the stationary contact 31 is configured with a connection screw 32 and a connection tab 33 for fixing and connecting, and the stationary contact head 20311 is brought into contact with or separated from the movable contact head 20231 by a nip formed by moving contacts of the moving contact assembly. Here, the structures of the left and right stationary contact assemblies 203L and 203R are substantially the same, and only the length of the stationary contact 31 and the bending lengths or angles of both ends thereof are different, and will not be described.

As shown in fig. 38-58, the layout of the static contacts is optimized, and two groups of static contact assemblies 203 of the same layer of contact pole modules 210 are respectively arranged at the diagonal line L1 or L2 of the base 201. In this embodiment, the two groups of static contact assemblies 203 of the same layer of contact pole module 210 are connected left or right at the same time, when connected left, the contact portions of the static contact head and the moving contact extend from the left side of the base 201 to the longitudinal middle position of the base 201, and when connected right, the contact portions of the static contact head and the moving contact extend from the right side of the base 201 to the transverse middle position of the base 201; in the adjacent layer contact pole modules 210, the static contact assemblies of the adjacent layer contact pole modules 210 are alternately connected left or right, namely: the two groups of static contact assemblies 203 of one layer of contact pole modules are connected left at the same time, and the two groups of static contacts of the other layer of contact pole modules 210 are connected right at the same time, so that the static contact assemblies 203 of the adjacent layers are alternately arranged. Thus, the two groups of static contact assemblies 203 of the left connecting layer and the two groups of static contact assemblies 203 of the right connecting layer are symmetrically distributed on two sides of the center line of the base 201, and the center line L3 of the head of the two groups of static contact assemblies 203 of the left connecting layer is vertical to the center line L4 of the head of the two groups of static contact assemblies 203 of the right connecting layer. The fixed contacts are symmetrically arranged in the middle, so that the existing space is effectively utilized, the capacity of the arc extinguishing gate assembly can be maximized, and the moving contact spacing can be maximized to achieve breaking with higher index.

In addition, the present invention further improves the arc extinguishing effect by improving the structure of the moving contact assembly 202, as described below.

As shown in fig. 59-60, the disconnecting switch contact pole moving contact assembly 202 of the present invention is composed of a moving contact rotating frame and a moving contact piece 2023, wherein the moving contact rotating frame is formed by clamping and combining an upper buckle 2021 and a lower buckle 2022, the upper moving contact piece 2023 and the lower moving contact piece 2023 are clamped or combined into a moving contact piece assembly, the end part of the moving contact piece 2023 forms a gap-like moving contact head 20231, the moving contact rotating frame is mounted on the base 201 during assembly, and the moving contact piece 2023 is mounted on the moving contact rotating frame, so that the contact conduction and separation disconnection between the contact of the moving contact head 231 and the contact of the fixed contact assembly 203 can be formed through the rotation of the moving contact rotating frame. In this embodiment, the moving contact turret is composed of an upper buckle 2021 and a lower buckle 2022, wherein the upper buckle 2021 and the lower buckle 2022 are tightly connected by a bayonet, the upper buckle 2021 is provided with a clamping groove 20212, the lower buckle 2022 is provided with a clamping groove 20221, and the upper and lower moving contacts 2023 are arranged in the clamping groove 20212 and the clamping groove 20221. In particular, the side of the upper buckle 2021 is provided with toothed protrusions 20211 in the movement area from closing to opening, and these toothed protrusions 20211 are provided in the contact arcing area, so that the arc can be lengthened when the moving and static contacts are rapidly opened, which is helpful for rapidly breaking the arc.

Although the invention has been described with reference to the preferred embodiments, it is not limited thereto, and modifications and variations may be made by those skilled in the art without departing from the spirit and scope of the invention, and therefore the scope of the invention is to be determined from the appended claims.

Claims

1. The utility model provides an isolator contact pole, isolator includes two at least range upon range of contact pole modules, and every layer of contact pole module includes pedestal and dress in moving contact subassembly, static contact subassembly, arc extinguishing bars subassembly and the magnet of pedestal respectively, makes contact between moving contact and the static contact switch-on or separation disconnection when moving contact subassembly rotates, and wherein static contact subassembly overall arrangement mode is: the two groups of static contact assemblies of the same layer of contact pole modules are connected left or right at the same time, the static contact assemblies of the adjacent layer of contact pole modules are connected left or right alternately, when the static contact assemblies are connected left, the contact part of the static contact head and the moving contact extends to the longitudinal middle position of the base from the left side of the base, and when the static contact assemblies are connected right, the contact part of the static contact head and the moving contact extends to the transverse middle position of the base from the right side of the base.

2. The isolating switch contact pole of claim 1, wherein the two sets of stationary contact assemblies of the left contact pole module and the two sets of stationary contact assemblies of the right contact pole module are symmetrically disposed on both sides of the centerline of the housing, and wherein the centerlines of the two sets of stationary contact heads of the left contact pole module and the centerlines of the two sets of stationary contact heads of the right contact pole module are perpendicular.

3. The isolating switch contact pole of claim 1, wherein the stationary contact assembly comprises a stationary contact blade, a first end of the stationary contact blade is fixed at a top corner position of the base, and a second end of the stationary contact blade is folded laterally out of the stationary contact head to be in contact with or out of contact with the moving contact by a moving contact head nip passing in and out of the moving contact assembly.

4. The isolating switch contact pole of claim 1, wherein in adjacent layers of contact pole modules, two arc chute assemblies of one layer of contact pole modules are positioned at one diagonal of the housing and two arc chute assemblies of the other layer of contact pole modules are positioned at the other diagonal of the housing.

5. The isolating switch contact pole of claim 1, wherein each set of magnets is arranged above or below a position where a moving contact center line intersects a moving contact trajectory from a closing to a opening position when the isolating switch is in the opening state and the closing state in the same layer of contact pole modules, and four sets of magnets are arranged in a crisscross configuration.

6. The isolating switch contact pole of claim 1, wherein the magnets in each layer of contact pole modules are arranged on the base in a tight manner or are arranged on the base through an injection molding process or a riveting process; and the polarity direction of the magnets in the adjacent layers of contact pole modules is kept consistent.

7. The isolating switch contact pole as in claim 1, wherein the arc chute assembly comprises an arc chute and a plurality of grating sheets mounted on the arc chute, wherein an arc striking slot is provided in the middle of the grating sheets, and the tail end of the grating sheet is provided with a long foot extending into the moving track line of the head of the moving contact.

8. The isolating switch contact as defined in claim 7, wherein the arc chute is provided with an inner chamber, and the back of the arc chute is provided with staggered air outlets.

9. The disconnector contact pole of claim 7, wherein the housing is provided with an arc chute assembly mounting location, the arc chute assembly mounting location being provided with a plurality of chute slot openings for receiving and positioning corresponding chute.

10. The isolating switch contact pole of any one of claims 1 to 9, wherein the moving contact assembly has a moving contact turret and a moving contact piece mounted to the moving contact turret, wherein the moving contact is formed at an end of the moving contact piece, and a tooth-like protrusion is provided on a trip side of the moving contact turret in a movement region from closing to opening.