CN114582665A

CN114582665A - Isolating switch contact pole

Info

Publication number: CN114582665A
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: 2022-06-03
Anticipated expiration: 2042-01-29
Also published as: CN114582665B

Abstract

The invention discloses a contact pole of an isolating switch, the isolating switch comprises at least two laminated contact pole modules, each layer of contact pole module comprises a base body, a movable contact component, a fixed contact component, an arc chute component and a magnet, the movable contact component, the fixed contact component, the arc chute component and the magnet are arranged on the base body, two groups of fixed contact components of the same layer of contact pole module are connected to the left or the right at the same time, the fixed contact components of adjacent layers of contact pole modules are alternately connected to the left or the right, the contact pole module on the same layer is provided with two groups of static contact assemblies, two arc-extinguishing grid assemblies and four groups of magnets, the two groups of static contact assemblies are respectively arranged on one diagonal position of the base body, the two arc-extinguishing grid assemblies are respectively arranged on the other diagonal position of the base body, and the four groups of magnets are distributed in the range of 40-degree sectors of the central line of the moving contact when the isolating switch is in an opening state and a closing state and are positioned above or below the track line of the corresponding moving contact from the closing position to the opening position. The invention improves the arc extinguishing effect of the isolating switch by comprehensively using various measures.

Description

Isolating switch contact pole

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 hot spot problem in the industry. The photovoltaic direct-current switch is applied to an inverter and controls the working states of a plurality of core components, and the reliability of the photovoltaic direct-current switch is not only related to the good operation of the whole photovoltaic system, but also related to the stable development of the photovoltaic industry. For a photovoltaic power station system, how to remotely switch off or switch on a direct current switch is an urgent problem to be solved. If the inverter works abnormally, the power supply can be cut off rapidly, so that the burning accident can be avoided, and the life and property safety of the photovoltaic power station is protected. After the parts of the inverter are repaired, the switch is turned on manually by a remote control method, so that the protection is also provided for an operator of a circuit system.

The existing rotary isolating switch is basically operated manually, although the mechanical structure of the existing rotary isolating switch can meet millisecond pole breaking, the isolating switch needs to be manually operated by an operator to be disconnected after a system circuit breaks down, the requirement of quickly disconnecting the circuit when problems occur cannot be met, and meanwhile, the risk of the operator is increased; and after the problem is processed, manual closing is also needed. For operators of the switches, the method has potential safety hazards and time benefit, and for example, in recent years, the accidents of burning out the inverters are caused.

In addition, the contact structure of the existing rotary isolating switch product mainly adds an arc-extinguishing grid component and a permanent magnet to carry out arc extinction, but the defects of inaccurate correspondence of the magnetic poles of the permanent magnet, unreasonable arrangement of the position of the arc-extinguishing grid component and the like generally exist, so that the contact structure not only can not ensure effective arc extinction and discharge of hot gas in the switch disconnection process, but also has the risk of burning the switch due to the fact that a large amount of ions of the hot gas are attached to the inner wall of the switch, thereby affecting the switch performance,

in order to solve the problems of the manual opening isolating switch widely used in the market, improvement is needed.

Disclosure of Invention

In view of this, the present invention provides a contact pole of a disconnecting switch 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, isolator include two at least range upon range of contact polar modules, and every layer of contact polar module includes the pedestal respectively and adorns movable contact subassembly, quiet contact subassembly, arc chute subassembly and the magnet in the pedestal, makes contact switch-on or separation disconnection between movable contact and the static contact when movable contact subassembly rotates, and wherein static contact subassembly overall arrangement mode is: two groups of static contact assemblies of the same layer of contact pole modules are connected to the left or the right simultaneously, the static contact assemblies of the adjacent layer of contact pole modules are alternately connected to the left or the right, when the left side is connected, the contact part of the fixed contact head and the movable contact extends from the left side of the base body to the longitudinal middle position of the base body, when the isolating switch is in an opening state and a closing state, the four groups of magnets are distributed in the range of 40-degree sector of the central line of the moving contact and are positioned above or below the track line of the corresponding moving contact from closing to opening positions.

Furthermore, the two groups of static contact assemblies of the left connection layer contact pole module and the two groups of static contact assemblies of the right connection layer contact pole module are symmetrically distributed on two sides of the center line of the base body, and the center lines of the two groups of static contact heads of the left connection layer contact pole module are perpendicular to the center lines of the two groups of static contact heads of the right connection layer contact pole module.

Furthermore, the static contact component comprises a static contact, a first end of the static contact is fixed at the vertex angle of the base body, and a second end of the static contact is transversely folded out of the head of the static contact so as to be in contact with or separated from the moving contact through a gap between the moving contact head and the moving contact head of the moving contact component.

Furthermore, in the adjacent layers of contact pole modules, two arc chute assemblies of one layer of contact pole module are located at one diagonal position of the seat body, and two arc chute assemblies of the other layer of contact pole module are located at the other diagonal position of the seat body.

Furthermore, in the same layer of contact pole module, each group of magnets is arranged above or below the crossing position of the central line of the moving contact and the track line of the moving contact from the closing position to the opening position when the isolating switch is in the opening state and the closing state, and the four groups of magnets are in a cross configuration.

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

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

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

Further, the pedestal is provided with arc chute subassembly installation position, and arc chute subassembly installation position is seted up a plurality of bars piece notch and is held and fix a position corresponding bars piece.

Furthermore, the moving contact assembly is provided with a moving contact rotating frame and a moving contact piece arranged on the moving contact rotating frame, wherein the end part of the moving contact piece forms a moving contact, and the side surface of the upper buckle of the moving contact rotating frame is provided with a dentate bulge part in a moving area from closing to opening.

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

Drawings

FIG. 1 is a schematic diagram of a disconnector according to the invention;

FIG. 2 is a schematic view of the isolator mechanism of the present invention with the pole of the isolator mechanism removed from the knob;

FIG. 3 is an exploded view of the cover, base and internal mechanism of the isolator mechanism of the present invention after the pole knob removal;

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

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

FIG. 6 is a schematic view of the installation configuration of the pole top cover of the isolator mechanism of the present invention;

FIG. 7 is a schematic view of the internal pole mechanism of the disconnector mechanism of the present invention, FIG. 1;

FIG. 8 is a schematic view of the internal pole mechanism of the disconnector mechanism of the present invention, FIG. 2;

FIG. 9 is a schematic view of the internal pole mechanism of the disconnector mechanism of the present invention, FIG. 3;

FIG. 10 is a schematic view of the internal pole mechanism of the disconnector mechanism of the present invention 4;

FIG. 11 is a schematic view of the internal pole mechanism of the disconnector mechanism of the present invention 5;

FIG. 12 is a schematic view of a pole rotation mechanism of the disconnector mechanism according to 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 view of the assembly of the pole energy storage buckle and its support plate of the isolating switch mechanism of the present invention 1;

FIG. 15 is a schematic view of the assembly of the pole energy storage buckle and its support plate of the isolator mechanism of the present invention 2;

FIG. 16 is a schematic view of a pole energy storage buckle of the disconnector mechanism of the present invention 1;

FIG. 17 is a schematic view of a pole energy storage buckle of the disconnector mechanism of the present invention 2;

FIG. 18 is a schematic view of a pole energy storage buckle support plate of the isolator mechanism of the present invention 1;

FIG. 19 is a schematic view of a pole energy storage buckle support plate of the isolating switch mechanism of the present invention 2;

FIG. 20 is a schematic view of the assembly of the pole upper and lower buckles of the isolator mechanism of the present invention;

FIG. 21 is a schematic view of the assembly of the pole upper and lower buckles of the isolator mechanism of the present invention;

FIG. 22 is a schematic view of a pole separation and combination upper buckle of the isolating switch mechanism of the invention 1;

FIG. 23 is a schematic view of a pole on/off button of the isolator mechanism of the present invention 1;

FIG. 24 is a schematic view of a pole opening and closing bottom buckle of the isolating switch mechanism of the invention 1;

FIG. 25 is a schematic view of the pole opening and closing bottom button of the isolator mechanism of the present invention 2;

FIG. 26 is a schematic view of a pole energy storage latch of the isolator switch mechanism of the present invention 1;

FIG. 27 is a schematic view of the pole energy storage latch of the isolator switch mechanism of the present invention 2;

FIG. 28 is a schematic view of the pole trip block of the isolator switch mechanism of the present invention 1;

FIG. 29 is a schematic view of a pole trip block of the isolator switch mechanism of the present invention 2;

FIG. 30 is a schematic view of the isolation switch mechanism pole driver of the present invention;

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

FIG. 32 is a schematic view of the isolator mechanism pole driver backbone of the present invention 1;

FIG. 33 is a schematic view of the isolator mechanism pole driver backbone of the present invention 2;

FIG. 34 is a schematic view of a closing arm brace of an isolator mechanism according to the present invention;

FIG. 35 is a schematic view of a closing arm brace of an isolating switch mechanism of the present invention, shown in FIG. 2;

FIG. 36 is a schematic view of a pole break arm of the disconnector mechanism of the present invention 1;

FIG. 37 is a schematic view of a pole break arm of the disconnector mechanism of the present invention, FIG. 2;

FIG. 38 is a three-dimensional schematic view of a contact pole of the isolator switch of the present invention;

FIG. 39 is a top view of the bottom layer of the isolating switch contact (with a static contact assembly hidden) of the present invention;

FIG. 40 is a schematic top view of the bottom layer of the isolation switch contact of the present invention;

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

FIG. 42 is a schematic top view of the left contact layer opening of the disconnector of the present invention;

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

FIG. 44 is a three-dimensional schematic view of the left contact layer of the isolator contact of the present invention with the movable contact assembly removed;

FIG. 45 is a first schematic view of the left contact layer stationary contact assembly, the arc chute assembly and the magnet plane distribution of the contact pole of the disconnector;

FIG. 46 is a schematic view of the left contact layer stationary contact assembly, the arc chute assembly and the magnet plane distribution of the disconnector contact of the present invention (the moving contact assembly is removed) in FIG. 2;

FIG. 47 is a three-dimensional schematic view of the left contact base of the isolator switch of the present invention;

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

FIG. 49 is a three-dimensional schematic view of a left contact level stationary contact assembly of a contact pole of a disconnector according to the invention;

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

FIG. 51 is a schematic top view of a right contact layer opening of a contact of an isolator switch according to the present invention;

FIG. 52 is a top view of the right hand laminated gate of the isolator contact of the present invention;

FIG. 53 is a three dimensional schematic view of the right contact layer of a disconnector contact with the moving contact assembly removed in accordance with the present invention;

FIG. 54 is a first schematic view of the right contact layer stationary contact assembly, the arc chute assembly and the magnet plane distribution of the contact of the disconnector;

FIG. 55 is a schematic view of the right contact layer static contact assembly, arc chute assembly and magnet planar distribution of the isolator contact of the present invention (with the moving contact assembly removed) 2;

FIG. 56 is a three-dimensional schematic view of the right contact layer housing of the isolator switch contact of the present invention;

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

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

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

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

FIG. 61 is a schematic three-dimensional view of a disconnector contact grid assembly of the present invention, FIG. 1;

FIG. 62 is a schematic three-dimensional view of a disconnector contact grid assembly of the present invention, FIG. 2;

fig. 63 is a three-dimensional schematic view of a disconnector contact and arc chute assembly of the present invention, fig. 3.

Detailed Description

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

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

First, isolator complete machine

Referring to fig. 1-63, the isolator switch structure of the present invention is shown and described in detail below.

As shown in fig. 1, the isolating switch includes a mechanism pole 200 and a contact pole 200, the mechanism pole 200 is configured with a knob 110, the isolating switch is charged and closed by rotating the knob 110, and the isolating switch can be opened quickly after the charging is released.

The mechanism pole 200 uses a spring pre-charging technology to pre-charge the charging spring to store energy in the mechanism during the closing phase, and directly uses an electromagnet to trigger the tripping mechanism when remote disconnection is required. Therefore, on one hand, the response and action time of the electromagnet is very short, and the triggering action of the brake separating tripping can be completed in very short time; on the other hand, the energy storage buckle capable of pre-storing energy can also drive the upper buckle and the lower buckle to the opening position at the speed of millisecond.

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

The mechanism pole 200 and the contact pole 200 will be described in detail below.

Second, isolating switch mechanism pole

As shown in fig. 2-37, the isolation switch operating electrode 200 is a housing formed by a base 16 and a top cover 17, and a back mechanism such as a rotary motion and a switching-off drive is installed inside the housing, wherein the internal mechanism includes a main shaft 1, an energy storage spring 2, an energy storage buckle 3, a switching-on buckle 4, a switching-off spring 5, a switching-off lower buckle 6, an energy storage buckle 7, a tripping block 8, a driver 9, a switching-on supporting foot 10, a switching-off supporting foot 11, a switching-off microswitch 13, a circuit board 15, and the like, and the components are combined to form different mechanisms. Here, the control box 12 is disposed below the base 16, and the related circuit board is mounted therein; a rotary action mechanism is arranged in an inner cavity 161 at one side of the base 16, wherein the lower buckle of the split lower buckle 6 passes through a shaft coupling hole 163 of the base 16 and then is in shaft coupling with the contact pole 200, and 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 inner cavity 162 is provided with an electromagnetic driver 9 so as to realize automatic brake opening and tripping. The mechanism pole and the contact pole of the present invention are explained below.

The energy storage spring 2, the energy storage buckle 3, the split upper buckle 4, the split lower 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, the energy storage buckle 3 and the energy storage buckle supporting plate 14 are circumferentially positioned with the main shaft 1 through the energy storage buckle end pin 19 and the energy storage buckle long pin 20, the split upper buckle 4 is circumferentially positioned with the main shaft 1 through the split pin 21, the knob 110 is installed at the top end of the main shaft 1, the two are circumferentially positioned through the knob pin 18, 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 by rotating the knob 110.

The energy storage mechanism is composed of an energy storage spring 2 and an energy storage buckle 3, two ends of the energy storage spring 2 can respectively exert force on the shell and the energy storage buckle 3, and the energy storage spring 2 is stretched to store energy by rotating the energy storage buckle 3; on the contrary, the energy storage spring 2 will push the energy storage buckle 3 to rotate reversely when releasing energy. Here, the energy storage buckle 3 is provided with an energy storage buckle support plate 14, and the energy storage buckle support plate are buckled together to keep the stability of the energy storage buckle 3.

The on-off button 4, the on-off spring 5 and the on-off button 6 constitute an on-off mechanism, wherein the on-off button 4 and the on-off button 6 are integrally fastened, a moving contact (not shown) in an external contact pole 200 of the on-off button 6 is connected, and the on-off spring 5 exerts force on the on-off button 4 and the on-off button 6. After energy is stored, the opening and closing spring 5 is stretched after the opening and closing upper buckle 4 is rotated, and then the opening and closing lower buckle 6 is driven to rotate clockwise to perform closing operation; when releasing energy, the energy storage buckle 3 rotates reversely to drive the opening upper buckle 4 and the opening lower buckle 6 to rotate reversely so as to perform opening 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 supporting foot 10 to restrain the closing supporting foot 10, when the energy storage is released, the energy storage lock catch 7 rotates outwards to drive the closing supporting foot 10 to rotate outwards, so that the closing supporting foot 10 releases the locking of the opening and closing lower buckle 6 and automatically opens, 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 and closing upper buckle 4 and the opening and closing lower buckle 6 to rotate reversely under the restoring force of the energy storage spring 2, so that the opening and closing lower buckle 6 is separated from the moving contact and quickly opens.

The closing supporting leg 10 and the opening supporting leg 11 are used for locking and unlocking in a closing state or an opening state, respectively, can rotate around their own axes, and are respectively provided with a return spring, wherein each return 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 a corresponding state, thereby ensuring the correct action time sequence of the opening and closing lower buckle 6.

The closing supporting foot 10 has a manual opening state and an automatic opening state, the closing supporting foot 10 is pushed outwards by rotating the opening and closing buckle 4 during manual opening to release the locking of the opening and closing lower buckle 6, and the constraint of the closing and closing supporting foot 10 is released by the energy storage lock catch during automatic opening to release the locking of the opening and closing lower buckle; the opening arm 11 has a manual closing state, and after a delay time from the start of the manual closing, the closing arm 4 is rotated to push the closing arm 11 outward, thereby releasing the locking of the opening/closing lower hook 6.

Here, when the disconnecting switch is in an OFF state during closing, the disconnecting switch is used as an initial position, the main shaft 1 is rotated in the state and then the opening and closing buckle 4 is driven to rotate, after the opening and closing buckle 4 rotates for a certain angle, the opening and closing supporting foot 11 is pushed away by the opening and closing buckle 4, and therefore the opening and closing buckle 6 also rotates along with the opening and closing supporting foot 11, namely, the closing rotating time of the opening and closing buckle 6 relative to the opening and closing buckle 4 has a certain delay. Similarly, when the brake is manually opened, the brake opening is realized by rotating the opening and closing upper buckle 4 through the main shaft 1, and the brake opening supporting foot 10 is released by pushing the opening and closing upper buckle 4 outwards, so that the brake opening supporting foot 10 has a certain delay. In contrast, the closing arm brace 10 is instantly and directly released by the energy storage latch 7 during automatic opening, so that the delay problem does not exist.

The on-off microswitch 13 forms an isolating switch state detection device, and the on-off microswitch 13 is welded on the circuit board 15 so as to receive the energy storage detection signal and the on-off detection signal and transmit the signals to the control system for monitoring. In addition, an energy storage microswitch detection device can be 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 timely and effectively monitor the running state of the isolating switch, and the method is further described as follows.

Referring to fig. 2-37, the poles and components of the disconnector mechanism according to the invention will be described in detail below.

As shown in fig. 2-25, the top cover 17, the energy storage buckle 3, the energy storage spring 2, etc. are assembled. The top cover 17 is provided with a spindle hole 170, the spindle 1 penetrates through the spindle hole 170, the top end of the spindle 1 is exposed out of the top cover 17, and the knob is arranged at the top end of the spindle 1 and is positioned through a knob pin 18; the top cover 17 is provided with a main shaft limit pin slot 177, and after the main shaft limit pin 19 penetrates through the main shaft 1, both ends of the main shaft limit pin are accommodated in the main shaft limit pin slot 177, so that the angle of the main shaft 1 rotated by the knob 18 is limited. The energy storage spring 2 is sleeved on a central column around the spindle hole 170 on the bottom wall of the top cover, and the bottom wall of the top cover 17 is further provided with an energy storage spring groove 171, so that the energy storage spring 2 is arranged on the top cover 17. Energy storage is detained 3 and is located energy storage spring 2 below, and the main shaft hole 30 suit of energy storage knot 3 is in main shaft 1, and energy storage is detained 3 bottom surfaces and is set up two energy storage and detain driving block 31, and energy storage round pin 20 passes main shaft 1 back, and the both ends of energy storage round pin 20 can butt corresponding energy storage respectively and detain driving block 31, and energy storage is detained 3 and is located main shaft 1 like this to can make energy storage detain 3 can link with main shaft 1. Here, an energy storage buckle supporting plate 14 can be additionally arranged 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 storage buckle limiting block 172, a storage buckle shaft hole 173, a release block shaft hole 174, a driver limiting block 175, a switcher shaft hole 176 and other features so as to position or limit the relevant components.

The energy storage spring 2 is sleeved on a central column around a spindle hole 170 of the top cover 17, one leg of the energy storage spring 2 is arranged in an energy storage spring groove 171 on the top cover 17 to limit the movement of the energy storage spring 1, and the other leg of the energy storage spring 2 is abutted against a side surface 35a of an energy storage buckle spring push 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 stored energy is released, the stored energy spring 2 pushes the stored energy buckle 3 to rotate reversely. When the stored energy is released, the stored energy buckle 3 rapidly rotates anticlockwise due to the large force of the stored energy spring 2, and needs to stop acting in time after the brake separating action is completed so as to avoid excessive brake separating, so that the top cover 17 and the stored energy buckle 3 are provided with corresponding matching characteristics, specifically, the top cover is provided with the stored energy buckle limiting block 172, and the other side surface 35b of the spring push block of the stored energy buckle is a limiting surface, so that the reverse rotation angle of the stored energy buckle 3 is limited.

It can be understood that the energy storage buckle 3 needs to be locked when the energy is stored in a closing or opening state, and needs to be unlocked when the energy is released, and the energy storage buckle 7 is used for realizing the locking. Therefore, an energy storage buckle locking hook 32 is arranged on the side surface of the energy storage buckle 3, and can be locked by the energy storage buckle 7 when energy storage is completed, and is unlocked by the energy storage buckle 7 when energy is released. After the disconnecting switch is tripped, the disconnecting switch needs to be manually operated clockwise to complete the switching-on and energy storage actions, wherein during the switching-on, the main shaft 1 is rotated clockwise by the knob 110 through the knob pin 18; meanwhile, the opening and closing pin 21 and the energy storage pin 20 inserted into the main shaft 1 start to rotate clockwise, so that the opening and closing pin 21 pushes the opening and closing upper buckle 4 and the opening and closing lower buckle 4 to realize closing, and the energy storage pin 20 pushes the energy storage buckle 3 to realize energy storage.

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 microswitch (not shown) may be triggered to send an energy storage detection signal, so that the energy storage state is conveniently monitored.

In this embodiment, the energy storage buckle 3 is configured with an energy storage buckle supporting plate 14, which is configured with corresponding inner holes 140, limiting

portions

141, 142, 144, a limiting groove 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 downwardly passes through the limiting groove 143 of the energy storage buckle supporting plate 14, 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 upper opening buckle 4 and the lower opening buckle 6, wherein the lower opening buckle 6 can partially penetrate through the upper opening buckle 4, so that the energy storage buckle 3 can drive the lower opening buckle 6. Specifically, the top surface of the opening and closing lower buckle 6 is provided with an opening push block 62, the bottom surface of the energy storage buckle 3 is provided with an opening driving block 33, and the energy storage buckle 3 is associated with the opening push block 62 through the cooperation of the opening driving block 33 and the opening push block 62. When the stored energy is released, the opening driving block 33 on the energy storage buckle 3 strikes 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 rotate reversely for opening.

The upper buckle 4 and the lower buckle 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 in the buckle cavity 44, so that the split upper buckle 4 and the split lower buckle 6 are combined into a whole. The upper buckle 4 is provided with a spindle hole 40 and an upper buckle pin groove 41, the lower buckle 6 is provided with a spindle hole 60, the spindle 1 is coaxially arranged in the spindle hole 40 and the spindle hole 60, the end part of the upper buckle pin 21 is accommodated in the upper buckle pin groove 41 for limiting after the upper buckle pin 21 penetrates through the spindle 1.

The opening and closing spring 5 is arranged between the opening and closing upper buckle 4 and the opening and closing lower buckle 6, so that two feet of the opening and closing spring 2 respectively exert force on the opening and closing upper buckle 4 and the opening and closing 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 containing 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 upper buckle is provided with an upper buckle spring push block 42, two feet are clamped between the side surface 63a and the side surface 63b of the lower buckle spring push block 63 and the side surface 42a and the side surface 42b of the upper buckle spring push block 42 when the spring 5 is opened and closed, and the lower buckle spring push block 63 is positioned on the inner side of the upper buckle spring push block 42. The opening and closing lower buckle 6 is locked by the opening support leg 11 when the opening and closing are finished and the opening and closing are kept; when the switch-on starts, the switch-off lower button 6 is locked by the switch-off supporting leg 11, and the switch-off upper button 4 stretches the switch-off spring 5 to store energy; when the upper split buckle 4 rotates to a certain angle, the opening and closing push block 45 on the upper split buckle 4 pushes the opening and closing supporting foot 11 open, so that the lower split buckle 6 is unlocked, and the opening and closing spring 5 pushes the upper split buckle 4 to rapidly rotate to close; the closing is completed and kept, and the opening and closing lower buckle 6 is locked by the closing supporting leg 10; when the opening is started, the closing supporting foot 10 is released, and the opening upper buckle 4 and the opening lower buckle 6 are simultaneously reversed to realize the opening. Here, in order to realize switching, a switching locking groove is provided at the bottom of the switching lower hook 6, and the side surface 64a thereof is engaged with the switching arm 10 to perform switching locking or unlocking, and the side surface 64b is engaged with the switching arm 11 to perform switching 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 push block 62 is arranged on the top surface of the opening and closing lower buckle 6, meanwhile, the annular opening push block passing groove 43 is arranged on the opening and closing upper buckle 4, the opening push block 62 penetrates through the opening push block passing 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, and the opening push block passing groove 43 is wider than the opening push block 62, so that a certain phase difference exists between the opening and closing upper buckle 4 and the opening and closing lower buckle 6 in rotation. Because the part of the opening push block 62 is exposed out of the opening push block through groove 43, the opening drive 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 and cannot strike the other side surface of the opening push block 62.

In the invention, the bottom of the split lower buckle 6 is provided with a lower buckle joint 68 with an inner grooved key 65, and the periphery of the lower buckle joint 68 is provided with lower buckle

movable grooves

66a and 66b and lower buckle limit stops 67a and 67 b. The lower buckle connector 68 is a movable contact in the shaft-coupled contact pole 200, and can perform switching on and off operations when the lower buckle 6 is switched on and off. Because the bottom of the split lower buckle 6 is provided with the split lower buckle limiting part, the two

side surfaces

67a and 67b of the split lower buckle are matched with the corresponding limiting part 164 on the shell base, and the rotating angle of the split lower buckle 6 can be limited.

In the embodiment of the present invention, the separable upper buckle 4 is provided with an upper buckle reinforcing structure 46, which is an inverted T-shaped structure, for the upper buckle spring pushing block 42, a top 461 of the upper buckle reinforcing structure 46 is connected with a top of the upper buckle spring pushing block 42, separable spring

leg moving grooves

47a and 47b for respectively accommodating two legs of the separable spring 5 are respectively provided between the upper buckle reinforcing structure 46 and the upper buckle spring pushing block 42, and the two separable spring

leg moving grooves

47a and 47b are approximately symmetrical with respect to the upper buckle spring pushing block 42. When the upper split buckle 4 and the lower split buckle 6 are assembled and buckled into a whole, the two legs 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 the corresponding split spring

leg moving grooves

47a and 47 b.

In order to realize automatic brake opening, the invention is provided with an automatic tripping mechanism, the energy storage lock catch 7 is separated from the energy storage buckle 3, so that the energy storage spring 2 is released to drive the energy storage buckle 3 to rotate reversely, and further drive the upper opening buckle 4 and the lower opening buckle 6 to rotate reversely, and the brake opening can be carried out as follows.

The automatic brake-separating of the invention is realized by driving the trip block 8 through the driver 9 and further shifting the energy storage lock catch. The main body of the driver 9 is fixedly arranged on a shell of the isolating switch, the trip block 8 is rotatably arranged on the shell through a trip 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 trip block 8 and the energy storage lock catch 7 are respectively provided with a reset spring, the first end of the trip block 8 is connected with the driver 9, the second end of the trip 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 manner, when the driver 9 is started, the trip block 8 is driven to rotate to drive the energy storage lock catch 7 to rotate, so that the energy storage lock catch 7 is separated from the energy storage lock catch 3 by canceling the constraint on the energy storage lock catch 7; thereby realizing automatic brake opening.

As shown in fig. 26-34, the shaft hole 70 of the energy storage buckle 7 is installed in the energy storage buckle shaft for the energy storage buckle 7 to rotate, wherein the energy storage buckle 7 is positioned by two holes, the lower hole surface of the energy storage buckle is matched with the plane of the base 16, and the upper hole surface is matched with the top cover 17. The energy storage buckle 7 is provided with a return spring for resetting, namely, the groove between the two holes is provided with the energy storage buckle return spring, one leg of the energy storage buckle return spring is lapped on the shell, and the other leg of the energy storage buckle return spring is lapped on the spring lapping part 74 of the energy storage buckle 7, so that the energy storage buckle 7 always has a force moving towards the energy storage buckle 3. The inner side of the energy storage buckle 7 is provided with an energy storage lock hook 71 which is matched with the energy storage buckle lock hook 32 on the side surface of the energy storage buckle 3 to lock the energy storage buckle 3 when the energy storage is finished, and the energy storage buckle 3 is unlocked through the energy storage buckle 7 when the energy is released. The other side of the energy storage lock catch 7 is provided with an energy storage lock catch shifting block 72 which is connected with the trigger buckle 8. In addition, the back of the outer side of the energy storage lock catch 7 is provided with a closing supporting leg matching part 73, and when the energy storage lock catch 7 rotates outwards, the closing supporting leg 10 is also pushed away.

The trip block 8 is rotatably mounted to the housing through the shaft hole 80. The trip block 8 is provided with a trip block return spring, one leg of which is lapped on the shell, and the other leg of which is lapped on the spring lapping part 81 of the trip block 8, so that the trip block 8 always has a force moving towards the energy storage buckle 3. The 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 the energy storage lock catch 7 and the tripping block 8 are reliably overlapped. The other side of the trip block 8 is provided with a driver connection slot 83 for connecting the driver 9. When the driver 9 is started, the trip block 8 is driven to rotate, and then the energy storage lock catch 7 is driven to rotate, so that the energy storage lock catch 7 is not restrained by the energy storage lock catch 7, and the energy storage lock catch 7 is separated from the energy storage lock catch 3, because the closing supporting foot release block 104 is positioned at the closing supporting 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 supporting foot release block 104 also rotates outwards to release the locking, and thus the opening can be further performed.

Referring to fig. 30-34, the present invention employs an electromagnetic actuator, which includes a frame 93, a first magnetic yoke 91, a second magnetic yoke 92, a first coil 94, a second coil 95, a first magnet 99, a second magnet 910, a movable iron core 96, a first static iron core 97, a second static iron core 98, a pull rod 90, and the like, wherein the first magnet 99 and the second magnet 910 are mounted in a magnet mounting groove 932 at the middle of the coil frame 93, and the first coil 94 and the second coil 95 are wound in coil winding grooves 931 at two sides of the coil frame 93; the first magnetic yoke 91 is a U-shaped plate, the second magnetic yoke 92 is an end plate, and the two magnetic yokes form a surrounding structure for 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 static iron core 97 and the second static 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, so that the connection between the driver 9 and the tripping block 8 is conveniently realized, the tripping block 8 is driven to rotate by the action of the movable iron core 94, and then the energy storage lock catch 7 is driven to rotate, so that the energy storage lock catch 7 is separated from the energy storage lock catch 3, and the rapid brake separation is realized.

In the invention, the coil outgoing line of the driver 9 is connected to the circuit board 15, the lead of the circuit board 15 is connected to the wiring terminal, when the external terminal passes through a voltage signal, the corresponding coil is electrified, and under the action of electromagnetic force, the movable iron core 96 can transversely move towards the corresponding side static iron core until the static iron core is completely attached, so that the movement is stopped. When the tripping is performed, the tripping block 8 rotates counterclockwise around the shaft under the pulling of the pull rod 90 until the energy storage lock catch 7 is disengaged from the hasp surface of the overlapping part 83 of the energy storage lock catch, 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 supporting leg 10 is pushed to be unlocked, so that the counterforce of the opening and closing spring 5 on 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, the extending arm of the opening and closing lower buckle 6 is flapped, the opening and closing lower buckle 6 rapidly rotates, and the contact with the movable contact pole is rapidly disconnected to complete the opening action.

It can be understood that the isolating switch needs to be locked or unlocked when switching on or switching off, and for this purpose, a switching-on supporting leg 10 and a switching-off supporting leg 11 are respectively arranged on the side surface of the switching-on/off lower buckle 6. At this time, the opening/closing latch groove 64 is provided on the side surface of the opening/closing lower hook 6, and the two

side surfaces

64a and 64b of the opening/closing latch groove 64 are respectively engaged with the closing arm 10 and the opening arm 11 to lock and unlock, as described below.

In the invention, the opening and closing upper buckle 4 is provided with an opening and closing push block 45, and the 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 the corresponding matching part of the closing supporting foot 10 or the opening supporting foot 11 to push the closing supporting foot 10 or the opening supporting foot 11 outwards, thereby unlocking the opening and closing lower buckle 6. In the invention, the locking of the folding brake supporting foot 11 is released through the folding brake pushing block 45 during manual closing, and the locking of the folding brake supporting foot 10 is released through the folding brake pushing block 45 during manual opening; particularly, under the condition of automatic opening and closing, the isolating switch can automatically release to release the stored energy, at the moment, the energy storage lock catch 7 and the energy storage lock catch 3 are unlocked, and the closing supporting foot 10 is driven to rotate outwards, so that the locking of the closing supporting foot 10 is directly released, and the opening and closing push block 45 is not needed to play a role at the moment. As further described below.

As shown in fig. 34 to 35, the closing arm 10 has a shaft hole 210 which is fitted into a positioning shaft of the housing so that the closing arm 10 can rotate. The closing arm 10 is provided with a closing arm spring which is sleeved on the closing arm spring mounting post 105, one arm of the closing arm spring passes through the slot 106, and the other arm passes through the slot 107, so that the closing arm spring can respectively exert force on the shell and the closing arm 10, and inward pressure is provided for the closing arm 10. The closing arm brace 10 has a step-shaped arm brace portion, an upper buckle matching portion at the upper portion and a lower buckle matching portion at the lower portion, wherein the inner side surface of the upper buckle matching portion is an upper buckle driving surface 102, and the end surface of the lower buckle matching portion is a lower buckle limiting surface 103. When the closing is completed and maintained, the lower buckle limiting surface 103 abuts against the side surface 64a of the opening/closing latch groove 64 of the opening/closing lower buckle 6 to realize closing locking. Here, the closing arm 10 has a closing arm release block 104 at the top thereof, which abuts against the closing arm fitting portion 73 of the back surface of the energy storage buckle 7,

when the stored energy is released, the energy storage lock catch 7 rotates outwards and drives the closing supporting foot release block 104 to rotate outwards, so that the lower buckle limiting surface 103 is separated from the side surface 64a of the opening and closing lock groove 64 of the opening and closing lower buckle 6, the opening and closing lower buckle 6 is unlocked, and the opening and closing operation can be further carried out. When the manual tripping is carried out, the closing supporting leg 10 is pushed outwards to be unlocked through the closing and closing push block 45 on the closing and closing upper buckle 4.

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

The working process of the isolating switch is as follows: the opening and closing action of the opening and closing buckle 4 and the main shaft 1 is realized under the action of the opening and closing pin 21; when the switch is switched on, the switch is rotated clockwise, one leg of the switch spring 5 is lapped on the switch lower buckle 6, the other leg is positioned on the clamping position of the switch upper buckle 4 and starts to be stretched under the action of the switch upper buckle 4, the switch lower buckle 6 starts to rotate until the switch push block 45 starts to push the switch support leg 11, the switch spring 5 is released instantly, and the switch lower buckle 6 rotates instantly to realize the switch; after the switch-on is in place, the switch-on supporting leg 10 realizes the inner buckling under the action of the spring, the supporting leg surface of the inner buckling is contacted with the lower buckling surface of the switch-on and switch-off, and the inner buckling are tightly matched under the action of the spring 5 of the switch-on and switch-off; similarly, during opening, the opening and closing upper buckle 4 rotates in a counter-clockwise manner, the opening and closing spring 5 starts to stretch under the action of the opening and closing upper buckle 4, the opening and closing lower buckle 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 instantly at the moment of opening, and the opening and closing lower buckle 6 rotates instantly to realize opening.

The above preferred embodiment of the present invention discloses an automatic opening isolating switch mechanism, which can be transversely arranged above a switch, wherein the driving device is an electromagnet with enough impact force, and the electromagnet rapidly impacts a switch part locking part when receiving a signal so as to break a loop. The isolating switch is automatically switched off after the spring stores energy, and is different from the method of directly using a motor mechanism to drive a main shaft to switch off, the isolating switch uses an electromagnet to push a lock catch of the switch, the spring with pre-stored energy drives a tripping mechanism to make quick breaking action, and the whole breaking time is finished within 20 ms. The isolating switch can realize the purpose of remotely disconnecting the loop of the inverter system without manual operation when the circuit system of the inverter meets 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 testing the relevant electric service life, the mechanical service life and the like, and can also perform closing action in an automatic state.

Contact pole of isolating switch

The isolating switch contact disclosed by the invention comprehensively utilizes various measures to improve the arc extinguishing effect, and the arc extinguishing effect is described in detail as follows.

Referring to fig. 38-63, the contact pole 200 of the isolating switch of the present invention is formed by stacking one or more layers of contact pole modules 210, wherein the structures of the other layers are the same except for the base body of the bottom layer contact pole module 210g, wherein the fixed contact of each contact pole module 210 is connected to the left or connected to the right, the left contact pole module is represented by 210l, and the right contact pole module is represented by 210r (the bottom layer contact pole module 210g is also a right connection module in practice).

Each contact pole module 210 includes a base 201, a movable contact assembly 202, a fixed contact assembly 203, an arc chute 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 movable contact assembly rotates, the movable contact is driven to rotate, so that the movable contact head 20231 and the fixed contact head 20311 are in contact conduction or separation disconnection, thereby performing switching on or switching off, wherein the arc chute assembly 205 and the magnets 204 play an arc extinguishing role.

The left contact pole module 210L and the right contact pole module 210R have substantially the same structure, the body bodies 2011 of the left connection body 201L and the right connection body 201R are assembled in a buckling and assembling manner, the moving contact mounting holes 2012 are formed in the middle of the body bodies 2011 to mount the moving contact assembly 202, and the body bodies 2011 are further provided with a fixed contact assembly mounting position 2013, a magnet mounting position 2014 and an arc chute assembly mounting position 2015, but the positions of the mounting positions are different and are particularly arranged in a left-right symmetrical manner.

The present invention improves the arc extinguishing effect by improving the layout of the magnets and the structure and layout of the arc chute assembly, as follows.

Specifically, the magnets 204 of the present invention are distributed in the range of 40 ° sector of the center line of the moving contact when the isolating switch is in the opening state and the closing state; meanwhile, the tail end of the grid slice 2051 of the arc-extinguishing grid assembly 205 is provided with a long foot part 20512 to extend into the motion track line of the movable contact head 20231.

As shown in fig. 38 to fig. 58, a plurality of sets of magnets 204 are disposed on the seat body 201 in the present embodiment, and each set of magnets 204 is closely fitted to the seat body 201; alternatively, each set of magnets 204 is mounted to the base 201 through an injection molding process or a riveting process. The magnets 204 are arranged in the following manner: the multiple groups of magnets 204 are distributed in the range of 40-degree sector of the center line L3 or L4 of the movable contact when the isolating switch is in an opening state and a closing state. Further, four sets of magnets 204 are mounted on the base 201 of each layer of the contact pole module 210, the four sets of magnets 204 are arranged in a crisscross manner within a range of 40 ° sectors of a central line of the movable contact when the disconnector is in four opening and closing states, wherein each set of magnets 204 is arranged within a range of 40 ° sectors of the central line of the movable contact when the disconnector is in the opening and closing states and is located above or below a trajectory line from the closing position to the opening position of the movable contact. Further, each magnet 204 is located above or below the intersection of the moving contact path line from the closed to open position from the moving contact center line L3 in the closed state or the moving contact center line L4 in the closed state. Thus, the present invention can better improve the arc extinguishing effect by providing the magnets 204 at the closing and opening positions, respectively, for arc extinguishing.

In this embodiment, the contact pole modules 210 of the present invention are multi-layered, the static contact component 203 of each contact pole module 210 is connected to the left or the right, the static contact components 203 of adjacent contact pole modules 210 are connected to the right or the left, respectively, and the magnetic directions of the magnets 204 between the adjacent contact pole modules 210 are consistent.

Meanwhile, the invention further improves the arc extinguishing effect through the layout and the structure of the arc extinguishing grid assembly, and the description is as follows.

As shown in fig. 38 to 63, two arc chute assemblies 205 are disposed on the base body 201 of the same layer of contact module 210, and the arc chute assemblies 205, the base body 201 and the space between the movable contact assemblies 202 form the arc chute assemblies. Here, the two arc chute assemblies 205 are respectively disposed at the other diagonal position of the base body 201; in the adjacent contact pole modules 210, the two arc chute assemblies 205 of one contact pole module 210 are located at a position of one diagonal line L1 of the base body, and the two arc chute assemblies of the other contact pole module 210 are located at a position of the other diagonal line L2 of the base body 201, that is, the arc chute assemblies 205 of the adjacent layers are alternately arranged, and the air outlets thereof are also alternately arranged. The benefits of this are: when the arc discharge area is disconnected, the upper layer and the lower layer of the arc discharge area are distributed in a staggered manner, and the gas outlets are also distributed in a staggered manner, so that not only can a large amount of combustible gas generated due to local overheating be avoided, but also the gas outlet can be prevented from being subjected to arc spraying short circuit, the contact pole module 210 on the same layer comprises two arc-extinguishing grid components 205, the two arc-extinguishing grid components 205 are distributed on one diagonal line L1 or L2 of the base body, and the two static contact components 203 are distributed on the other diagonal line L2 or L1 of the base body; in the adjacent layers of the contact pole modules 210, the two arc chute assemblies 205 of one layer of the contact pole modules 210 are distributed on one diagonal line of the seat body 201, and the two arc chute assemblies 205 of the other layer of the contact pole modules 210 are distributed on the other diagonal line of the seat body 201

As shown in fig. 61-63, the arc chute assembly 205 includes an arc chute 2052 and a plurality of grids 2051, the grids 2051 are mounted on the arc chute 2052 for positioning, and each grid 2051 is partially located in a moving trajectory line of the movable contact head, specifically, a long foot 20512 is disposed at the tail end of the grid 20511, and the long foot 20512 extends into a moving trajectory line of the movable contact head 20231. Therefore, the arc can be introduced into the arc chute assembly, so that the effect of the arc chute assembly can achieve better effect. Wherein, the grid plates 2051 of the arc extinguishing grid component are a plurality of grid plates, and the gap between the grid plates 2051 is 0.8 mm-2 mm; an arc striking groove 20511 is formed in the middle of each grid slice 2051, so that arc lengthening and arc voltage raising are facilitated; in addition, the tail end of the grid slice 2051 is provided with a long foot part, and the long foot part 20512 extends into the moving track line of the head part of the moving contact, so that the arc is guided into the arc-extinguishing grid assembly, and the arc is extinguished more effectively. Because the grids 2051 are multiple pieces, arc extinguishing grid assembly installation positions 2015 for placing the grids 2051 are correspondingly arranged on the base body 201, and the grid assemblies are provided with multiple grid notches to position the corresponding grids 2051, so that the grids 2051 are favorably fixed, and the grids 2051 are prevented from being scattered after being burned or being burned to be adhered by electric arc. As shown in fig. 61-63, the arc chute 2052 has an interior chamber such that the arc moves within the chamber and cannot pass beyond the back of the arc chute 2052 to form a back strike; meanwhile, the back of the arc extinguishing frame 2052 is provided with staggered air outlets 20521, which is helpful for exhausting and dissipating heat.

The invention further improves the arc extinguishing effect through the static contact structure and the layout mode, and the invention is explained as follows.

As shown in fig. 38-58, the left fixed contact assembly 203L and the right fixed contact assembly 203R in the present embodiment respectively include a fixed contact 31, a first end of the fixed contact 31 is fixed at a top corner of the seat 2011, and a second end of the fixed contact 31 is folded into a fixed contact head 20311 to contact with the movable contact head 20231. Specifically, a binding screw 32 and a binding post 33 are disposed at a first end of the static contact 31 for fixing and binding, and the static contact head 20311 is in contact with or separated from the movable contact head 20231 by a gap formed by the movable contact of the movable contact assembly. Here, the left stationary contact assembly 203L and the right stationary contact assembly 203R have substantially the same structure, and only the length of the stationary contact 31 and the bending length or angle of the two ends thereof are different, and the description thereof will not be repeated.

As shown in fig. 38-58, the layout of the fixed contacts is optimized in the present invention, and two sets of fixed contact assemblies 203 of the same layer of contact pole module 210 are respectively disposed at the diagonal L1 or L2 of the base 201. In this embodiment, two sets of the fixed contact assemblies 203 of the same layer of the contact pole module 210 are connected left or right at the same time, when the fixed contact assembly is connected left, the contact portion between the fixed contact head and the movable contact extends from the left side of the base 210 to the longitudinal middle position of the base 210, and when the fixed contact assembly is connected right, the contact portion between the fixed contact head and the movable contact extends from the right side of the base 210 to the transverse middle position of the base 210; in the adjacent layer contact pole modules 210, the static contact assemblies of the adjacent layer contact pole modules 210 are alternately connected to the left or the right, that is: two groups of static contact assemblies 203 of one layer of contact pole module are connected to the left side at the same time, and two groups of static contacts of the other layer of contact pole module 210 are connected to the right side at the same time, so that the static contact assemblies 203 of adjacent layers are alternately arranged. In this way, the two groups of static contact assemblies 203 of the left connection layer and the two groups of static contact assemblies 203 of the right connection layer are symmetrically distributed on two sides of the center line of the base 201, and the head center lines L3 of the two groups of static contact assemblies 203 of the left connection layer are perpendicular to the head center line L4 of the two groups of static contact assemblies 203 of the right connection layer. The static contacts are arranged in a centered symmetrical mode, the existing space is effectively utilized, on one hand, the capacity of the arc extinguishing grid assembly can be maximized, and on the other hand, the moving contact can be spaced maximally to achieve breaking of higher indexes.

In addition, the present invention further improves the arc extinguishing effect by improving the structure of the movable contact assembly 202, which is described as follows.

As shown in fig. 59-60, the contact moving contact assembly 202 of the isolating switch of the present invention comprises a moving contact rotating frame and a moving contact 2023, wherein the moving contact rotating frame is formed by combining an upper buckle 2021 and a lower buckle 2022 in a clamping manner, the upper moving contact 2023 and the lower moving contact 2023 are clamped or combined into a moving contact assembly, the end of the moving contact 2023 forms a movable contact portion 20231 in a slit manner, the moving contact rotating frame is mounted on the base 201 during assembly, and the moving contact 2023 is mounted on the moving contact rotating frame, such that the contact conduction and separation disconnection between the contact of the movable contact portion 231 and the contact of the fixed contact assembly 203 can be formed by the rotation of the moving contact rotating frame. In this embodiment, the movable contact rotating frame 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 through a bayonet, the upper buckle 2021 is provided with a locking groove 20212, the lower buckle 2022 is provided with a locking groove 20221, and the upper and lower movable contacts 2023 are disposed in the locking groove 20212 and the locking groove 20221. In particular, the side surface of the upper buckle 2021 is provided with tooth-shaped protrusions 20211 in the motion region from closing to opening, and the tooth-shaped protrusions 20211 are arranged in the contact arcing region, so that the arc can be elongated when the moving contact and the static contact are quickly opened, and the arc can be quickly broken.

Although the present invention has been described with reference to the preferred embodiments, it should be understood that the scope of the present invention is not limited to the embodiments described above, and that various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the present invention.

Claims

1. The utility model provides an isolator contact, isolator include two at least range upon range of contact polar modules, and every layer of contact polar module includes the pedestal respectively and adorns movable contact subassembly, quiet contact subassembly, arc chute subassembly and the magnet in the pedestal, makes contact switch-on or separation disconnection between movable contact and the static contact when movable contact subassembly rotates, and wherein static contact subassembly overall arrangement mode is: two groups of static contact assemblies of the same layer of contact pole modules are connected to the left or the right simultaneously, the static contact assemblies of the adjacent layer of contact pole modules are alternately connected to the left or the right, when the left side is connected, the contact part of the fixed contact head and the movable contact extends from the left side of the base body to the longitudinal middle position of the base body, when the fixed contact head and the movable contact are connected to the right, the contact part of the fixed contact head and the movable contact extends from the right side of the base body to the transverse middle position of the base body, the isolating switch is characterized in that the same layer of contact pole module is provided with two groups of static contact assemblies, two arc-extinguishing grid assemblies and four groups of magnets, the two groups of static 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 the range of 40-degree sectors of the central line of the moving contact when the isolating switch is in an opening state and a closing state and are positioned above or below the track line of the corresponding moving contact from the closing position to the opening position.

2. The isolating switch contact pole of claim 1, wherein the two sets of stationary contact assemblies of the left contact layer contact pole module and the two sets of stationary contact assemblies of the right contact layer contact pole module are symmetrically distributed on two sides of the center line of the base body, and the center lines of the two sets of stationary contact heads of the left contact layer contact pole module and the center lines of the two sets of stationary contact heads of the right contact layer contact pole module are perpendicular.

3. An isolating switch contact pole as in claim 1 wherein the fixed contact assembly includes a fixed contact having a first end fixed at a top corner of the housing and a second end folded across the fixed contact head to make or break contact with the movable contact by a gap in the movable contact head into and out of the movable contact assembly.

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

5. The disconnector contact pole of claim 1, wherein in the same layer of contact pole modules, each group of magnets is arranged above or below the crossing position of the moving contact center line and the moving contact track line from the closing position to the opening position when the disconnector is in the opening state and the closing state, and four groups of magnets are in a crisscross configuration.

6. The isolating switch contact pole of claim 1, wherein the magnets in each layer of contact pole module are closely fitted to the base body or mounted to the base body through an injection molding process or a riveting process; and the polarity directions of the magnets in the contact pole modules of the adjacent layers are kept consistent.

7. The isolating switch contact as in claim 1, wherein the arc chute assembly comprises an arc chute and a plurality of grids mounted on the arc chute, the grids having arc grooves in the middle and having long legs at the ends extending into the moving trajectory of the moving contact head.

8. A disconnector contact pole according to claim 7, characterized in that the arc-extinguishing rack is provided with an inner chamber and the back of the arc-extinguishing rack is provided with staggered outlet openings.

9. An isolating switch contact as in claim 7 wherein the housing is provided with a grid assembly mounting location having a plurality of grid notches for receiving and positioning corresponding grids.

10. A disconnector contact pole according to any one of claims 1-9, characterized in that the moving contact assembly has a moving contact turret and a moving contact piece mounted on the moving contact turret, wherein the end of the moving contact piece forms the moving contact, and the side of the upper latch of the moving contact turret is provided with a toothed projection in the area of movement from closing to opening.