Electric switch and power distribution system

Abstract

Provided in the present application are an electric switch and a power distribution system. The switch comprises an insulating housing and an internal element; the insulating housing comprises a first cavity and second cavities for accommodating a switch system; connection ends of the switch are arranged at two ends of the second cavities respectively; the first cavity and the multiple second cavities are arranged in a vertically stacked mode; the vertical axes or central axes of connection devices of the connection ends corresponding to different phases or poles are coaxial or non-coaxial; a moving contact is driven by a control mechanism to rotate or / and move.

Description

An electric switch and power distribution system

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese patent application 202311515028.4, filed on November 14, 2023, entitled “An electric switch” and Chinese patent application 202410987090.1, filed on July 23, 2024, entitled “An electric switch and distribution system”, and the entire contents of the above two applications are incorporated herein by reference. Technical Field

[0003] The present application belongs to the technical field of low-voltage electrical appliances, and specifically relates to an electrical switch and a power distribution system. Background Art

[0004] The arc channel outlet of the switching electrical appliance is generally set above the power input terminal. The arc channel inside the switch is relatively short, and a large arc will be generated under high voltage and high interruption conditions. It is easy to cause the copper busbars on different phase poles above the terminal to short-circuit, causing the secondary arc to produce a phase-to-phase short circuit, resulting in explosions and other serious safety accidents. The solution is generally to add an arc extinguishing cover to the outside of the switch. The arc extinguishing cover is made of nylon material. Under the harsh use environment of new energy systems such as photovoltaic, wind power, and energy storage, it is easy to age and crack. The arc will be ejected outward from the crack, which can easily cause an explosion accident, causing very serious harm to people and equipment.

[0005] In switching electrical appliances, contact spacing is an extremely important technical parameter, which plays a decisive role in the dielectric properties and breaking capacity of the switching electrical appliances. The contact opening distance in a switch electrical appliance is generally achieved by the moving contact making linear or rotational movements. The contact opening distance can be increased by lengthening the moving contact or the rotation angle. The larger the contact opening distance, the more favorable it is for high voltage and high interruption, but it is not conducive to the miniaturization of the switch electrical appliance. The switch electrical appliances in related technologies are all arranged vertically up and down, and the rotation angle of the moving contact opening distance is mostly within 40 degrees. Due to the height limitation of the switch electrical appliance, more arc extinguishing grids cannot be set. This is very unfavorable for the arc extinguishing of arcs generated in systems as high as DC2000V and AC1500V in new power. Fuses are often required as a substitute, resulting in problems such as increased temperature, large size, and high cost, which restricts the development of switch electrical appliances in breaking high voltage and high short-circuit current. How to realize that switch electrical appliances can reliably and safely break extremely large short-circuit currents under ultra-high voltage under low-cost conditions is one of the most difficult problems to solve in the world's low-voltage switch electrical appliance technology.

[0006] The operating handles of switches are mostly pushed and pulled up and down, which is inconsistent with the rotational motion in the complete cabinet. A conversion mechanism must be added to achieve this, which increases the mechanical structure and causes waste.

[0007] If the switch is to be electrically operated, it is necessary to set up another electric operating mechanism outside the operating mechanism of the switch, which causes problems such as large size and high cost.

[0008] Therefore, there is an urgent need for a new type of switching electrical appliance that can solve the secondary short-circuit accidents caused by electric arcs, significantly reduce the width of distribution cabinets, reduce the use of non-ferrous metals, increase the number of arc-extinguishing grids within the effective volume of the switch to improve the breaking capacity under high voltage and reduce the structural cost of manual and electric operation, and develop a switching technology with higher movement speed to meet the many stringent requirements of the new power system for switching electrical appliances such as miniaturization, high voltage, high breaking, and zero arcing.

[0009] Summary of the Invention

[0010] Based on the above background, by stacking the poles or phases of the switch up and down, and arranging the terminal ends of the poles or phase switches up and down with or without coaxial centers, the width of the multi-pole or multi-phase switch is greatly reduced, and more switches can be installed side by side in the distribution cabinet, thereby increasing the number of switches arranged in the distribution cabinet. At the same time, the reverse tunnel arc extinguishing technology is used to achieve zero arcing performance of the switch under high voltage and high breaking, which greatly improves the safety and reliability of the switch in the distribution cabinet. In addition, the composite motion technology of moving and rotating the moving contact is adopted, which can achieve a larger contact opening distance in a smaller space, better meeting the requirements of the new power system for miniaturization, high voltage, high breaking, zero arcing and other switching electrical appliances.

[0011] On the one hand, the present application discloses an electrical switch, comprising an insulating shell and internal components, the internal components including at least a moving contact, a contact support, a static contact, a control mechanism, a first terminal, and a second terminal, the insulating shell comprising a first cavity for accommodating the control mechanism and at least two second cavities for accommodating the moving contact, the static contact, and the contact support; the first terminal and the second terminal are respectively arranged at both ends of the second cavity; the first cavity and multiple second cavities are stacked up and down, and the first cavity is arranged above the multiple second cavities; the static contact is directly or indirectly connected to the first terminal and / or the second terminal; the first terminal and / or the second terminal are provided with a clamping device or a pressure plate device or a screw crimping device or a lifting device; the central axis or central axis of the first terminal or the second terminal arranged up and down in different phases or poles is coaxial or non-coaxial; the moving contact is arranged on the contact support and moves together, and the contact support is rotated and / or moved under the direct or indirect drive of the control mechanism, driving the moving contact and the static contact to connect or disconnect electricity.

[0012] In this way, the multiple phase poles of the electric switch are stacked along the height direction of the switch. Compared with the original multi-pole switch, the width can be greatly reduced. More switches can be installed side by side in the distribution box of the same width, which greatly saves the space of the distribution cabinet. The wiring terminals can adopt different wiring structures. The central axis of the wiring terminals arranged above and below can be coaxial or non-coaxial. The wiring methods are diverse and the use of transfer copper bars in the distribution cabinet can be greatly saved, which greatly improves the efficiency of manual installation and reduces labor hours, thereby reducing the cost of the distribution cabinet.

[0013] On the other hand, the present application further discloses a power distribution system, comprising a plurality of conductive bars and at least one electrical switch, wherein a plurality of first terminals of the at least one electrical switch are directly or indirectly connected to the plurality of conductive bars.

[0014] The beneficial effects of this application are:

[0015] 1. The present application utilizes the length space of the switch to form a reverse tunnel-type arc channel, which allows the remaining short arc after being cut by the arc extinguishing chamber to enter the reverse tunnel-type arc channel under the drive of the airflow generated by the disconnection, so that the remaining short arc is completely dissipated and absorbed in the arc channel, thereby enabling the switch to achieve zero arcing performance under high voltage and high current. The arc sprays backward and will not cause secondary short circuit hazards to the conductive busbars of different phase poles on the front terminal, thereby greatly improving the safety and reliability of the switch during use.

[0016] 2. The present application arranges an arc extinguishing chamber on the reverse tunnel-type arc channel, making full use of the length direction of the switch to arrange more arc extinguishing grids, increasing the number of arc extinguishing grids by more than 60%. The arc extinguishing grids use metal grids to cut the arc into several short arc segments. The near-cathode effect of the AC arc and the near-pole voltage drop of the DC arc are utilized to increase the arc voltage to reduce the fault current, thereby accelerating the arc extinction. It has a strong current limiting capability and can interrupt higher voltages and larger currents.

[0017] 3. The zero arcing performance of the electric switch of the present application under high voltage and high current can reduce the safety distance between the multi-pole electric switch and other conductive parts in the distribution cabinet, solving the problem of waste of space and conductive bars in the distribution cabinet due to the long arcing distance of the multi-pole electric switch and the large safety distance when installed in the distribution cabinet.

[0018] 4. The mechanism of the electric switch of the present application enables the moving contact to move in the horizontal direction at an angle of more than 80 degrees, which is twice the angle of the switch of the existing technology. The length of the moving contact is designed to be more than 50% shorter than that of the switch of the related technology. By utilizing these technologies, the switch of the present application can be significantly reduced in width compared with the original multi-pole switch. More multi-pole electric switches of the present application can be installed side by side in the same width distribution cabinet, which can greatly save the space of the distribution cabinet and improve the space utilization rate in the distribution cabinet.

[0019] 5. The input and output terminals of the electrical switch of the present application are stacked in the height direction at the same height as the conductive busbars in the distribution cabinet. The switch terminals can be directly connected to the conductive busbars, eliminating the need for the copper busbars used to connect the original distribution cabinet to the switch, thereby reducing the cost of the overall distribution cabinet by more than 30%.

[0020] 6. The electric switch of the present application is easy to install in the cabinet and connect with the conductive bar in the cabinet, which can greatly reduce the labor hours for cabinet installation, thereby reducing the overall cost of the distribution cabinet.

[0021] 7. The operating handle of the electric switch of the present application can be directly set as a rotary handle. The rotary handle adopts a horizontal rotary handle, which is parallel to the top plane of the switch insulation part, increases the force arm and reduces the hand force. The human hand can hold the handle tightly to operate, which not only adapts to the force mode of the human hand and saves effort in operation, but also the rotary handle can be rotated at a large angle, which is easy to identify the specific opening and closing positions and tripping positions of the switch.

[0022] 8. The electric switch of the present application can realize remote control and remote completion of the switch opening and closing operations by setting an electric control mechanism, reducing direct contact with high-voltage equipment and improving operational safety. In addition, electric operation can reduce manual operation and improve operational efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. Obviously, the drawings described below are only some of the embodiments described in this application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0024] FIG1 is a schematic structural diagram of a switch device 100 ′ in the related art;

[0025] FIG2 is a schematic diagram of the internal structure of a switch device 100 ′ in the related art;

[0026] FIG3 is a schematic diagram of a switch device 100' of the related art installed side by side in a power distribution cabinet;

[0027] FIG4 is a perspective schematic diagram of a three-pole switch disclosed in the first embodiment;

[0028] FIG5 is an exploded schematic diagram of the three-pole switch in FIG4 ;

[0029] FIG6 is a schematic structural diagram of the wiring accessories in FIG4 ;

[0030] FIG7 is a schematic diagram of the internal structure of the first pole switch disclosed in the first embodiment;

[0031] FIG8 is a schematic diagram of the structure of the movable contact disclosed in the first embodiment;

[0032] FIG9 is a schematic diagram of another structure of the movable contact disclosed in the first embodiment;

[0033] FIG10 is a schematic structural diagram of the movable contact assembly disclosed in the first embodiment;

[0034] FIG11 is a schematic structural diagram of the contact support disclosed in the first embodiment;

[0035] FIG12 is a schematic diagram of the external structure of the first pole switch disclosed in the first embodiment;

[0036] FIG13 is another schematic structural diagram of the electric switch disclosed in the first embodiment;

[0037] FIG14 is a schematic diagram of the structure of the contact support in FIG13;

[0038] FIG15 is a schematic diagram of the structure of multiple contact supports after splicing disclosed in the first embodiment;

[0039] FIG16 is a schematic structural diagram of a plurality of contact supports connected to a multi-link mechanism after being spliced ​​together as disclosed in the first embodiment;

[0040] FIG17 is a schematic structural diagram of the multi-link mechanism disclosed in the first embodiment;

[0041] FIG18 is a schematic diagram of the structure of the gear and rack transmission disclosed in the first embodiment;

[0042] FIG19 is a schematic structural diagram of the connection between the multi-link mechanism and the rotary handle disclosed in the first embodiment;

[0043] FIG20 is a structural diagram of the arrangement of the first and second terminals of the three-pole switch disclosed in the first embodiment;

[0044] FIG21 is a schematic structural diagram of the movable contact and the stationary contact in the open position disclosed in the first embodiment;

[0045] FIG22 is a schematic structural diagram of the arc extinguishing chamber disclosed in the first embodiment;

[0046] FIG23 is a schematic structural diagram of the arc extinguishing chamber provided in the insulating housing and the arc channel disclosed in the first embodiment;

[0047] FIG24 is a schematic diagram of another structure of the arc extinguishing chamber;

[0048] FIG25 is a schematic structural diagram of the overload release disclosed in the first embodiment;

[0049] FIG26 is a schematic structural diagram of the overload release disclosed in the first embodiment disposed in an insulating housing;

[0050] FIG27 is a schematic structural diagram of the linkage between multiple overload releases and a multi-link mechanism disclosed in the first embodiment;

[0051] FIG28 is a schematic structural diagram of the connection between the three-pole switch and the conductive bar disclosed in the first embodiment;

[0052] FIG29 is a schematic diagram of the electrical switch structure disclosed in the second embodiment;

[0053] FIG30 is a schematic diagram of a partial structure of the switch in FIG29;

[0054] FIG31 is a schematic structural diagram of the connection between the multi-link mechanism and the push-pull handle disclosed in the third embodiment of the present application;

[0055] FIG32 is a schematic structural diagram of the arrangement of the first and second terminals of the two-pole switch disclosed in the fourth embodiment;

[0056] FIG33 is a structural diagram of the arrangement of the first and second terminals of the two-pole switch disclosed in the fifth embodiment;

[0057] 34 and 35 are schematic structural diagrams showing the arrangement of the first and second terminals of the four-pole switch disclosed in the sixth embodiment;

[0058] 36, 37 and 38 are schematic structural diagrams of an electric switch disclosed in a seventh embodiment;

[0059] 39 and 40 are schematic structural diagrams of an electric switch disclosed in the eighth embodiment;

[0060] FIG41 is a schematic structural diagram of an electric switch disclosed in a ninth embodiment;

[0061] FIG42 is a schematic structural diagram of an electrical switch disclosed in a tenth embodiment;

[0062] FIG43 is a schematic structural diagram of an electrical switch disclosed in the eleventh embodiment;

[0063] FIG44 is a schematic structural diagram of an electrical switch disclosed in a twelfth embodiment;

[0064] 45 and 46 are schematic structural diagrams of an electrical switch disclosed in a thirteenth embodiment;

[0065] FIG47 is a schematic structural diagram of an electrical switch disclosed in a fourteenth embodiment;

[0066] 48, 49 and 50 are schematic structural diagrams of an electric switch disclosed in a fifteenth embodiment;

[0067] FIG51 is a schematic structural diagram of the electrical switch disclosed in the fifteenth embodiment in a free tripping state;

[0068] FIG52 is a schematic structural diagram of the electric switch disclosed in the fifteenth embodiment in a re-locked state;

[0069] FIG53 is a schematic structural diagram of the electric switch in the closed state according to the fifteenth embodiment;

[0070] FIG54 is a schematic structural diagram of a guide rod disclosed in a fifteenth embodiment;

[0071] FIG55 is a schematic structural diagram of a power assist member disclosed in a fifteenth embodiment;

[0072] FIG56 is a structural diagram of the auxiliary switch disclosed in the fifteenth embodiment, in which the auxiliary switch is installed in the second cavity and is in a closed state;

[0073] FIG57 is a structural diagram of the auxiliary switch disclosed in the fifteenth embodiment, in which the switch is installed in the second cavity and is in an open or free tripping state;

[0074] FIG58 is a schematic structural diagram of an electrical switch disclosed in a sixteenth embodiment;

[0075] FIG59 is a schematic structural diagram of an electrical switch disclosed in a seventeenth embodiment;

[0076] 60 and 61 are schematic structural diagrams of an electrical switch disclosed in the eighteenth embodiment;

[0077] 62 and 63 are schematic structural diagrams of an electric switch disclosed in a nineteenth embodiment;

[0078] 64, 65 and 66 are schematic structural diagrams of an electrical switch disclosed in the twentieth embodiment;

[0079] 67 and 68 are schematic structural diagrams of an electrical switch disclosed in the twenty-first embodiment;

[0080] 69 to 72 are schematic structural diagrams of an electric switch disclosed in a twenty-second embodiment;

[0081] 73 to 75 are schematic structural diagrams of an electric switch disclosed in a twenty-third embodiment;

[0082] 76 and 77 are schematic structural diagrams of an electrical switch disclosed in a twenty-fourth embodiment;

[0083] FIG78 is a schematic structural diagram of an electrical switch disclosed in the twenty-fifth embodiment;

[0084] 79 and 80 are schematic structural diagrams of an electric switch disclosed in the twenty-sixth embodiment;

[0085] 81 and 82 are schematic structural diagrams of an electrical switch disclosed in a twenty-seventh embodiment;

[0086] FIG83 is a schematic structural diagram of the connection between an electrical switch and a conductive bar disclosed in the twenty-seventh embodiment;

[0087] FIG84 is a schematic structural diagram of an electrical switch disclosed in the twenty-eighth embodiment;

[0088] 85 and 86 are schematic structural diagrams of an electrical switch disclosed in a twenty-ninth embodiment;

[0089] FIG87 is a schematic structural diagram of an electrical switch disclosed in a thirtieth embodiment;

[0090] 88 and 89 are schematic diagrams showing the structure of the connection between the electrical switch and the conductive bar disclosed in the thirtieth embodiment;

[0091] Figure 90 is a schematic structural diagram of a pressing plate device;

[0092] FIG91 is a schematic diagram of a partial structure of an electrical switch disclosed in a thirty-first embodiment;

[0093] FIG92 is a schematic diagram of the connection structure between the transmission shaft, connecting shaft and contact support in FIG91;

[0094] FIG93 is a schematic diagram of the connection structure between the connecting shaft and the contact support in FIG91;

[0095] FIG94 is a schematic diagram showing the structure of a screw crimping device used to connect a conductive bar having a protrusion or groove on one side to an electrical switch;

[0096] FIG95 is a schematic diagram showing the structure of a screw clamping device with a conductive connecting strip in conjunction with a flat straight strip conductive bar connected to an electrical switch;

[0097] FIG96 is a schematic diagram showing the structure of a pulling device in conjunction with a straight, planar conductive bar connected to an electrical switch;

[0098] FIG97 is a schematic diagram showing the structure of a pulling device in conjunction with a conductive bar having a protrusion on one side connected to an electrical switch;

[0099] FIG98 is a schematic diagram showing the structure of a pressure plate device in conjunction with a straight conductive bar connected to an electrical switch;

[0100] Figure 99 is a schematic diagram of the structure of a screw crimping device in conjunction with a straight strip of conductive busbar with holes to connect to an electrical switch. DETAILED DESCRIPTION

[0101] In order to make the purpose, technical solutions and advantages of the implementation of this application clearer, the technical solutions in the embodiments of this application will be described in more detail below in conjunction with the drawings in the embodiments of this application. In the drawings, the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The described embodiments are part of the embodiments of this application, not all of the embodiments. The embodiments described below with reference to the drawings are exemplary and are intended to be used to explain this application, and should not be understood as limitations on this application. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0102] Switching electrical appliances are generally used in distribution cabinets, and their main function is to distribute electrical energy. With the development of science and technology, the system capacity of distribution cabinets is constantly improving, so the number of switches used for electrical energy distribution in the cabinet is required to increase.

[0103] Figures 1-2 show a schematic diagram 100' of a multi-pole switch device according to the related art. As shown in Figure 1, the length, width, and height of the multi-pole switch device 100' are arranged along the X, Y, and Z directions, respectively. The input terminal 10' and the output terminal 20' are arranged flat along the width (Y) direction of the switch device 100'. As shown in Figure 2, the movable contact 30' is driven by the operating mechanism 50' to rotate up and down along the height (Z) direction to electrically connect or disconnect with the static contact 40'. The main drawback of this solution is that the movable contact 30' can only rotate simply. In a limited space, the contact spacing that can be achieved is relatively small. The size of the contact spacing has a decisive influence on the breaking capacity and insulation performance of the switch. Therefore, if the switch device 100' solution does not increase its external dimensions, it is difficult to further increase the contact spacing. However, increasing the external dimensions cannot meet the requirements of miniaturization in actual applications.

[0104] Secondly, in actual application, the switch devices 100' are usually installed side by side in the distribution cabinet along the width direction, and multiple switch devices 100' are electrically connected to the conductive bus in the cabinet through the transfer copper bus, as shown in Figure 3. In order to facilitate installation and transportation, the width of the distribution cabinet is generally set uniformly according to the standard. The width of the switch device is large, and the number of switches that can be installed side by side in the limited width space is small. When more switches need to be installed, they need to be installed in the distribution cabinet in multiple layers, which increases the height of the distribution cabinet. In addition, due to the switch device The incoming line end 10' of 100' is laid flat along the width (Y) direction. In order to ensure the insulation distance between each phase pole, it is necessary to use transfer copper busbars to connect with the conductive busbars in an alternating manner. In this way, the connection between the transfer copper busbars and the conductive busbars in the distribution cabinet will become complicated, and the installation is particularly inconvenient. At the same time, the amount of copper busbars used is particularly large, which is not conducive to reducing the overall cost of the distribution cabinet. At the same time, the transfer copper busbars are interspersed between different phase poles. Once the insulation is aged or damaged, it is easy to cause phase-to-phase breakdown short circuit accidents, causing serious safety accidents.

[0105] To address the technical issues of conventional switch devices, the present application provides an electrical switch. This electrical switch can be a multi-pole switch for direct current or a multi-phase switch for alternating current. The electrical switch comprises a first cavity and multiple second cavities stacked together, and first and second terminals stacked together along the height direction, thereby reducing the width of conventional switch devices. The following describes embodiments of the present application in detail with reference to the accompanying drawings.

[0106] First embodiment

[0107] As shown in Figures 4 to 26, it is assumed that the length, width, and height of the electrical switch 100 are arranged along the X, Y, and Z directions respectively. The electrical switch 100 is a three-pole electrical switch, including an insulating shell and internal components. The internal components include at least a moving contact 20, a contact support 21, a static contact 30, a control mechanism, a first terminal 40, and a second terminal 50. In this embodiment, the control mechanism is a mechanical control mechanism, including at least a multi-link mechanism 104. The insulating shell includes a first cavity 150 for accommodating the multi-link mechanism 104 and at least two second cavities 160 for accommodating the moving contact, the static contact, and the contact support; the first terminal 40 and the second terminal 50 are respectively arranged at both ends of the second cavity 160. The first cavity 150 and the three second cavities 160 are stacked up and down. The first cavity 150 Arranged above the three second cavities 160, the first cavity and the second cavity are both composed of two insulating parts. In this embodiment, the two insulating parts adjacent to the first cavity 150 and the second cavity 160 are an integrated structure. The first cavity 150 is formed by combining an insulating part 105 and an insulating part below it; the second cavity 160 is formed by splicing the upper insulating part 10 and the lower insulating part 11 up and down; the internal components arranged in the three second cavities respectively form the first pole switch 101, the second pole switch 102 and the third pole switch 103, and the third pole switch 103, the second pole switch 102, the first pole switch 101, the multi-link mechanism 104, the first insulating shell 105 and the operating handle 106 are stacked in sequence from bottom to top along the height direction (Z-axis direction) of the electrical switch 100.

[0108] In this embodiment, the plurality of second cavities 160 are in a strip or rectangular shape, and the first cavity 150 is in a square shape. In other embodiments, the first cavity may also be in a circular shape or a combination of a square and a circular shape.

[0109] Continuing with Figure 4, the first and second terminals are provided at each end of the first, second, and third pole switches 101, 102, and 103, respectively. In this embodiment, the first and / or second terminals 40, 50, and / or the first and second terminals 50 are pressure plate devices 110. Multiple pressure plate devices 110 are arranged vertically at different phases on at least one end of the switch. The central axes of the multiple pressure plate devices 110 arranged vertically are not aligned. That is, the central axis P1 of the pressure plate device at the first pole switch 101, the central axis P2 of the pressure plate device at the second pole switch 102, and the central axis P3 of the pressure plate device at the third pole switch 103 are not aligned. In other words, the multiple pressure plate devices 110 are stacked along the height Z direction of the switch and staggered along the width Y direction of the switch. This arrangement significantly reduces the use of copper busbars within the distribution cabinet, significantly improves manual installation efficiency, reduces labor hours, and reduces the cost of the distribution cabinet.

[0110] It should be noted that, in other embodiments, the first terminal 40 or / and the second terminal 50 can also be a chuck device or a screw crimping device or a lifting device. When the first terminal 40 or / and the second terminal 50 is a chuck device, the central axes of the multiple chuck devices arranged vertically are set coaxially or non-axially; when the first terminal 40 or / and the second terminal 50 is a screw crimping device or a lifting device, the central axes of the multiple screw crimping devices or lifting devices are set vertically and non-axially.

[0111] Further, please refer to Figures 4 to 6, the pressure plate device 110 includes a wiring terminal and a wiring accessory, the wiring accessory includes a connecting plate 110a, a threaded fastener 110b and a spring 110c, and one end of the connecting plate 110a is pressed on the wiring terminal and electrically connected to the wiring terminal.

[0112] In some embodiments, the minimum width of the electrical switch is the sum of the diameters of the two terminal clamping screws. In this embodiment, the terminal clamping screws are threaded fasteners 110b, that is, the minimum width of the electrical switch is the sum of the diameters of the two threaded fasteners 110b.

[0113] In some embodiments, the internal structures of the first pole switch 101, the second pole switch 102, and the third pole switch 103 are basically the same. The first pole switch 101 is taken as an example for description. As shown in FIG7 , the first pole switch 101 includes a moving contact 20, a contact support 21, a static contact 30, a first terminal 40, a second terminal 50, and a flexible wire 60. The moving contact 20 is connected to the first terminal 40 through the flexible wire 60. The moving contact 20 and the static contact 30 are arranged relative to each other along the switch length direction of the X axis. The moving contact 20 is horizontally spaced. Axially arranged, the moving contact 20 moves from the first terminal 40 to the second terminal 50, the insulating shell between the moving contact 20 and the first terminal 40 is arranged in a closed state, and the static contact 30 is electrically connected to the second terminal 50 by riveting, welding, integral molding, etc. In this embodiment, the contact method between the moving contact 20 and the static contact 30 is planar pressure contact. In some other optional embodiments, it can also be arranged that the moving contact 20 is connected to the second terminal 50 through a soft wire 60, and the static contact 30 is connected to the first terminal 40.

[0114] Continuing with reference to FIG8 , the moving contact 20 is in an angular shape, and a second hole 20a serving as a fulcrum for the movement of the moving contact 20 is provided at the corner of the angular shape. In some other optional embodiments, the second hole 20a may also be provided in a convex shape. The angular shape includes a first arm 20b and a second arm 20c. An alloy contact 20d is provided at the end of the first arm 20b, and a soft wire 60 is provided at the end of the second arm 20c.

[0115] In some other optional embodiments, as shown in FIG9 , the moving contact 20 is in the shape of a bar, a second hole 20 a serving as a fulcrum is provided in the middle of the bar, an alloy contact 20 d is provided on one end of the bar, and a soft wire 60 is provided on the other end.

[0116] Continuing with reference to FIG10 , the moving contact 20 is hinged to the contact support 21 via a second shaft 22 passing through the second hole 20a. The moving contact 20 is crimped together with the contact support 21 via an elastic member 23 and moves along with the contact support 21. When an external force acts on the moving contact 20, the moving contact 20 overcomes the pressure provided by the elastic member 23 and rotates relative to the contact support 21 at a certain angle, thereby ensuring that there is sufficient overtravel and contact pressure when the moving contact 20 contacts the static contact 30.

[0117] Continuing to refer to FIG11 , circular bosses 21a coaxial with the central axis of the contact support are provided at both ends of the contact support 21. The ends of the contact support here refer to the two ends in the length direction of the contact support. A groove or through hole 21b is coaxially provided on the inner side of the circular boss 21a, and the contact support rotates around the axis of the circular boss 21a. In this embodiment, the groove or through hole 21b is hexagonal. In some other optional embodiments, the groove or through hole 21b can be set to other shapes to facilitate connection and force transmission.

[0118] Continuing to refer to Figure 12, a slide groove is provided on the insulating member, and the slide groove includes an upper slide groove 10a and a lower slide groove 11a, wherein the upper insulating member 10 is provided with an upper slide groove 10a parallel to the switch length direction of the X-axis, and the lower insulating member 11 is provided with a lower slide groove 11a parallel to the switch length direction of the X-axis. The circular boss 21a of the contact support 21 is inserted into the upper slide groove 10a of the upper insulating member 10 and the lower slide groove 11a of the lower insulating member 11, and the circular boss 21a can move and rotate in the upper slide groove 10a and the lower slide groove 11a.

[0119] 13 and 14 , a bearing 26 is further provided on the circular boss 21 a , which can significantly reduce the friction of the contact support during rotation and movement, and prevent the contact support from getting stuck during transmission.

[0120] Continuing with reference to FIG15 , a plurality of contact supports 21 can be assembled into one piece from bottom to top along the switch height direction of the Z-axis by inserting the connecting shaft 24 into the groove or through hole 21b of the contact support 21. In this embodiment, three contact supports 21 are assembled into one piece by two connecting shafts 24. In other optional embodiments, the number of contact supports 21 can be increased or decreased according to the splicing method in this embodiment.

[0121] Continuing with reference to FIG16 , a groove or through hole 21 b is provided on the circular boss 21 a of the contact support 21. After the three contact supports 21 are assembled into one, the end of the uppermost contact support 21 is indirectly connected to the multi-link mechanism 104. By inserting the transmission shaft 25 into the groove or through hole 21 b, the contact support 21 is connected to the multi-link mechanism 104 along the switch height direction of the Z axis.

[0122] Continuing to refer to FIG17 , the multi-link mechanism 104 is arranged on the outside of the upper insulating member 10 and is insulated above the moving contact 20 and the static contact 30. The multi-link mechanism 104 is a four-link structure, which includes a lever, a lock, a jump lock, an upper link, a lower link, a main tension spring, a plurality of transmission shafts, an output rod 1041 and a side plate 1042. The control mechanism is provided with a driving portion that directly or indirectly drives the end of the contact support to move. The structure of the driving portion of this embodiment is cantilevered. The driving portion includes an output rod 1041 and a transmission shaft 25. One end of the transmission shaft 25 is fixedly connected to the uppermost contact support end, and the other end is fixedly connected to the output rod 1041. The side plate 1042 is provided with a switch length direction along the X-axis. A third slide groove 1042a is provided. The third slide groove 1042a on the side plate 1042 is arranged parallel to the upper slide groove 10a on the upper insulating member 10 and the lower slide groove 11a on the lower insulating member 11 along the switch length direction of the X-axis. The multi-link mechanism 104 drives the main tension spring to store energy through a lever, and then transmits it through multiple links such as the upper link, the lower link and the output rod 1041. Finally, the output rod 1041 drives the transmission shaft 25 to slide along the third slide groove 1042a on the side plate 1042, thereby driving the three assembled contact supports 21 to move in the upper slide groove 10a of the upper insulating member 10 and the lower slide groove 11a of the lower insulating member 11, and finally drives the moving contact 20 to move back and forth along the switch length direction of the X-axis.

[0123] Continuing to refer to FIG18 , a gear 24a is provided on the rotating axis of the connecting shaft 24. In this embodiment, the gear 24a is integrally formed with the connecting shaft 24 by a high-strength insulating material. In some other optional embodiments, the gear 24a can also be spliced ​​with the connecting shaft 24 or provided on the contact support 21. A rack 26 is also provided opposite the outer edge of the gear 24a. The rack 26 is fixed on the upper insulating member 10 and the lower insulating member 11. In this embodiment, two connecting shafts 24 are included. Both connecting shafts 24 are provided with gears 24a, and two racks 26 are provided correspondingly. In some other embodiments, In an optional embodiment, the gear 24a and the rack 26 are arranged in a corresponding manner with a greater or lesser number. When the three contact supports 21 assembled into one body move in the upper slide groove 10a of the upper insulating part 10 and the lower slide groove 11a of the lower insulating part 11, the rack 26 will generate a torque on the axis of the gear 24a, driving the gear 24a to roll on the rack 26. At the same time, the torque generated by the rack 26 on the axis of the gear 24a will be transmitted to the contact support 21 through the connecting shaft 24, thereby driving the contact support 21 to rotate along the axis, and finally driving the moving contact 20 to rotate back and forth along the switch length direction of the X-axis.

[0124] Continuing to refer to Figure 19, the insulating parts constituting the first cavity are assembled with multiple insulating parts constituting the second cavity along the switch height direction of the Z axis to form the insulating shell of the switch. The multi-link mechanism 104 is arranged in the first cavity, and the operating handle 106 is arranged above the first cavity and is connected to the multi-link mechanism 104 through a half-axis 1061. The operating handle 106 is a rotating handle, and the half-axis 1061 is the center of rotation of the rotating handle and is arranged along the switch height direction of the Z axis. The rotating handle drives the half-axis 1061 to rotate within a range of 120°, thereby driving the multi-link mechanism 104 to re-lock, open and close the switch.

[0125] 20 , the first pole switch 101, the second pole switch 102, and the third pole switch 103 are all provided with a first terminal 40 and a second terminal 50. The first terminal 40 or / and the second terminal 50 of the first pole switch 101, the first terminal 40 or / and the second terminal 50 of the second pole switch 102, and the first terminal 40 or / and the second terminal 50 of the third pole switch 103 can be staggered left and right along the switch width direction of the Y axis and insulated and distributed up and down along the switch height direction of the Z axis. The first terminal 40 or / and the second terminal 50 of the third pole switch 103 are all staggered left and right along the switch width direction of the Y axis and insulated and distributed up and down along the switch height direction of the Z axis. A second through hole 70a is provided on the insulating cover 70 of the first-pole switch 101 on which the first terminal 40 and / or the second terminal 50 are arranged to overlap upward, and a third through hole 70b is provided on the insulating cover 70 of the first-pole switch 101 on which the first terminal 40 and / or the second terminal 50 arranged on the second-pole switch 102 are arranged to overlap upward. Stacking the three first terminals 40 and the second terminals 50 in the height direction (Z-axis direction) and staggering them in the switch width direction along the Y-axis can effectively reduce the overall width of the switch 100 without affecting the connection between the switch 100 and the external conductive bar.

[0126] Continuing to refer to Figure 21, in the XY plane formed by the length (X-axis direction) and width (Y-axis direction) of the switch, the moving contact 20 and the static contact 30 form an angle a. When the multi-link mechanism 104 drives the contact support 21 and then drives the moving contact 20 to approach the static contact 30, the rack 26 will drive the gear 24a to drive the contact support 21 to rotate and then drive the moving contact 20 to rotate toward the static contact 30. During this movement, the angle a will gradually decrease. When the angle is close to 0°, the moving contact 20 is in contact with the static contact 30. When the multi-link mechanism 104 drives the contact support 21 and then drives the moving contact 20 away from the static contact 30, the rack 26 will drive the gear 24a to drive the contact support 21 to rotate and then drive the moving contact 20 to rotate away from the static contact 30. During this movement, the angle a will gradually increase. When the angle is close to 130°, the moving contact 20 is farthest from the static contact 30, reaching the contact opening position.

[0127] In summary, in the disclosed embodiments, the movable contact, directly or indirectly driven by the multi-link mechanism, performs a combined motion of forward and backward movement and rotation along the switch length along the X-axis, electrically connecting or disconnecting the contact with the stationary contact. The movement distance L is 1-50 mm, and the rotation angle a is 10-130 degrees. This combined motion of the movable contact 20 enables a greater contact opening distance within a smaller space. Furthermore, by stacking the switch terminals along the height direction, a novel switch device with short contacts, a large opening distance, a small width, and ease of installation and connection is achieved.

[0128] In this embodiment, as shown in Figures 22-26, an arc extinguishing chamber 80 is further provided in the first pole switch 101, the second pole switch 102, and the third pole switch 103. The arc extinguishing chamber 80 includes multiple metal grids 801 and two arc isolation plates 802. The multiple metal grids 801 are arranged at a certain distance between the two arc isolation plates 802. The arc extinguishing chamber 80 is also longitudinally arranged in the upper insulating member 10 and the lower insulating member 11, and is placed in front of the moving contact 20 and / or the static contact 30. When the moving contact 20 and the static contact 30 are opened, the arc generated can quickly enter the arc extinguishing chamber 80. The arc extinguishing chamber 80 extends from the first terminal 40 to the second terminal 50 along the length direction of the switch on the X axis. In this way, the arc extinguishing chamber 80 can make full use of the length direction of the switch to arrange more metal. The grid 801 improves the breaking capacity of the switch 100 at higher voltages. A gap is provided in the upper insulating member 10 and the lower insulating member 11 near the arc extinguishing chamber 80 to form an arc channel. The outlet of the arc channel is provided on the side opposite to the opening direction of the moving contact 20. In this way, a reverse tunnel-type arc channel is formed by utilizing the length space of the switch. The short arc remaining after being cut by the arc extinguishing chamber 80 can enter the reverse tunnel-type arc channel driven by the airflow generated by the breaking, allowing the remaining short arc to be further dissipated and absorbed in the arc channel, thereby enabling the switch to achieve zero arcing performance under high voltage and high breaking conditions, greatly improving the safety and reliability of the switch during use.

[0129] In an optional embodiment, as shown in FIG24 , the minimum width of the switch 100 is W, the length of the movable contact 20 is W1, and the width of the arc extinguishing chamber 80 is W2. The minimum width W of the switch 100 is proportional to the length W1 of the movable contact 20 and / or the width W2 of the arc extinguishing chamber 80. That is, the greater the length W1 of the movable contact 20 and / or the width W2 of the arc extinguishing chamber 80, the greater the minimum width W of the switch 100. During the opening and closing process of the switch 100, the movement trajectory of the movable contact 20 crosses the longitudinal centerline O of the arc extinguishing chamber 80. During the movement of the movable contact 20, the movable contact 20 is located on one side of the centerline O at the starting position and on the other side of the centerline O at the ending position. The movement trajectory of the movable contact crosses the vertical centerline of the arc extinguishing chamber, which not only facilitates arc ignition but also fully utilizes the metal grids on both sides of the centerline of the arc extinguishing chamber, achieving a better arc extinguishing effect.

[0130] In this embodiment, as shown in Figures 25-27, an overload release 90 is further provided in the first pole switch 101, the second pole switch 102, and the third pole switch 103. The overload release 90 is provided between the first terminal 40 and the second terminal 50 along the length direction of the switch along the X-axis. The overload release 90 includes a magnetic short-circuit release 91 and a thermal overload release 92. A push rod 93 is further provided around the magnetic short-circuit release 91 and the thermal overload release 92. In this embodiment, three magnetic short-circuit releases 91, thermal overload releases 92, and push rods 93 are included, and the switch along the Z-axis is opened by a trip rod 94. The three push rods 93 extend from the lower phase to the multi-link mechanism 104 in the direction of the switch height. When an overload or short-circuit current occurs in the line, the magnetic short-circuit release 91 and the thermal overload release 92 will push the push rod 93 to link the trip rod 94 to trip the multi-link mechanism 104, thereby tripping the switch 100 and cutting off the fault current in the line, ensuring the safety of the line and other electrical equipment in the line. The trip rod 94 connects the three push rods 93 into one along the switch height direction of the Z axis. In this way, if an overcurrent fault occurs in any pole of the three-pole switch, the three poles can trip for protection at the same time, ensuring the safety of the entire system.

[0131] FIG28 shows a schematic diagram of the connection structure between the electrical switch and the conductive bar of this embodiment. A slot 1001 is provided at at least one end of the electrical switch in the length direction. After multiple groups of conductive bars 200 are inserted into the slot 1001 , they are crimped by a pressing plate device 110 .

[0132] The switch of the present application realizes zero arcing capability under high voltage and high interruption conditions in a small volume through the combined movement of the moving contacts and the reverse tunnel arc extinguishing technology. This can greatly improve the safety of the switch when installed in a distribution cabinet, and prevent the arcing generated during high voltage and high current interruption from causing secondary short circuits in the distribution cabinet and causing serious consequences such as fire or equipment burning.

[0133] Second embodiment

[0134] As shown in Figures 29 and 30, this embodiment provides an electric switch of another structure. The difference from the first embodiment is that the insulating part 107 is an integrally formed structure, and the three insulating parts 107 stacked up and down form three independent second cavities. Compared with the splicing structure of the insulating parts in the first embodiment, the integrally formed structure in this embodiment saves assembly steps, saving time and effort.

[0135] Third embodiment

[0136] As shown in Figure 31, different from the above embodiment, the operating handle 106 of this embodiment is a push-pull handle, which moves along the switch length direction of the X-axis. The push-pull handle is mechanically connected to the multi-link mechanism 104 through the transmission shaft 1062. The push-pull handle drives the transmission shaft 1062 to move along the switch length direction of the X-axis and then drives the multi-link mechanism 104 to re-lock, open and close. The operation method of this handle conforms to the operating habits of the switch and is convenient for the operator to use.

[0137] Fourth embodiment

[0138] As shown in FIG32 , unlike the above-mentioned embodiment, the electric switch of this embodiment is a two-pole electric switch, which only includes a second-pole switch 102, a first-pole switch 101, a multi-link mechanism 104, an insulating member 105 and an operating handle 106, which are stacked in sequence from bottom to top along the height direction (Z-axis direction) of the electric switch 100. The first-pole switch 101 and the second-pole switch 102 are respectively wrapped by two insulating members. The first-pole switch 101 and the second-pole switch 102 are both provided with a first terminal 40 and a second terminal 50. The first terminals 40 of the first-pole switch 101 and the second-pole switch 102 are staggered left and right along the switch width direction of the Y-axis and along the switch height direction of the Z-axis. The first pole switch 101 and the second pole switch 102 are distributed and insulated in the vertical direction. The second terminals 50 of the first pole switch 101 and the second pole switch 102 can also be staggered left and right along the switch width direction of the Y axis and distributed and insulated in the vertical direction of the switch height direction of the Z axis. Compared with the three-pole switch, the two-pole switch of this embodiment has more space for the first terminal 40 and the second terminal 50 in the width direction (Y axis direction). By stacking in the height direction and staggering in the width direction, the first terminal 40 or / and the second terminal 50 of the first pole switch 101 and the second pole switch 102 can be completely staggered. This makes installation and wiring more convenient and can be better used in two-phase AC systems or high-voltage DC systems.

[0139] Fifth embodiment

[0140] As shown in Figure 33, different from the fourth embodiment, the first terminal 40 or / and the second terminal 50 of the first pole switch 101 and the second pole switch 102 of this embodiment are staggered and insulated from each other in the front-to-back direction of the switch length along the X-axis. In this way, compared with setting the first terminal 40 or / and the second terminal 50 in the front-to-back direction of the switch length, the overall length of the switch will be longer, but the overall width can be smaller. It can be used in distribution cabinets that do not have high requirements on switch length and have narrower width requirements, thereby improving the applicability of the switch.

[0141] Sixth embodiment

[0142] 34 , the electrical switch of this embodiment is a four-pole electrical switch, including a first-pole switch 101, a second-pole switch 102, a third-pole switch 103, and a fourth-pole switch 103C. The first-pole switch 101, the second-pole switch 102, the third-pole switch 103, and the fourth-pole switch 103C are all provided with a first terminal 40 and a second terminal 50. The fourth-pole switch 103C is provided below the third-pole switch 103. When the first terminal 40 and / or the second terminal 50 of the fourth-pole switch are coaxially arranged with the first terminal 40 and / or the second terminal 50 of the first-pole switch 101, the second-pole switch 102, or the third-pole switch 103, some parts of the wiring device on the first terminal 40 and / or the second terminal 50 of the first-pole switch 101, the second-pole switch 102, or the third-pole switch 103 are detachable. By arranging the terminal of the fourth-pole switch 103C coaxially with the terminal of the first-pole switch 101, the wiring of the fourth-pole switch 103C is thus arranged. The terminals of the fourth-pole switch 103C can overlap below the terminals of the first-pole switch 101, and the overall width of the switch will not increase. In order to smoothly insert a screwdriver into the terminals of the fourth-pole switch 103C during wiring, some parts of the wiring device on the terminals of the first-pole switch 101 are detachable. The wiring device includes at least screws, spring washers, and flat washers. When wiring and installing the fourth-pole switch 103C, the wiring device of the first-pole switch 101 is removed, and the screwdriver is inserted from the thread of the first-pole switch and through the hole in the insulating housing to the screw of the terminal of the fourth-pole switch 103C for wiring and installation. After installation is completed, wiring of other pole switches can be carried out. The terminal of the fourth-pole switch 103C is not limited to being coaxial with the terminal of the first-pole switch 101, and can also be coaxial with the second-pole switch 102 and the third-pole switch 103. This achieves the same effect. More phases and poles can be arranged without increasing the width, effectively saving installation space and cost. In other embodiments, as shown in FIG35 , the first terminal and / or the second terminal of the fourth pole switch may be staggered and / or arranged on a different axis from the first terminal and / or the second terminal of the first pole switch, the second pole switch, and the third pole switch.

[0143] Seventh embodiment

[0144] As shown in Figures 36, 37, and 38, the electrical switch of this embodiment differs from the first embodiment in that the movable contact 20 is hinged on the contact support 21. The movable contact 20 is connected to the static contact 30 only in a rotational manner. A drive shaft 25 is inserted into the slot or through-hole 21b at the end of the uppermost contact support 21. The drive shaft 25 serves as a mechanical structure to connect the contact support 21 to the multi-link mechanism 104 along the height of the switch. Subsequently, the movable contact 20 on the contact support 21 is driven by the multi-link mechanism 104 to rotate through an angle of 10 to 130 degrees, achieving electrical contact or separation with the static contact 30. The movable contact of this embodiment has a simple and reliable structure and is commonly used in low-voltage AC and DC systems.

[0145] Eighth embodiment

[0146] As shown in Figures 39 and 40, the electrical switch of this embodiment differs from the first embodiment in that the movable contact 20 is movably arranged relative to the static contact 30. The drive unit has a cantilever structure and includes a transmission shaft 25 and an output rod 1041. Multiple contact supports 21 are connected to a multi-link mechanism via the transmission shaft 25. The output rod 1041 moves under the drive of the multi-link mechanism. The output rod 1041 transmits the driving force of the multi-link mechanism to the transmission shaft 25, driving the contact supports 21 to move together. Subsequently, the movable contact 20, driven by the multi-link mechanism 104, translates over a distance L of 1 to 50 mm, achieving electrical contact or separation with the static contact 30. The movable contact of this embodiment adopts a translational type, which is simple and reliable in structure and is commonly used in disconnectors to change circuit connections or isolate lines or equipment from power sources.

[0147] Ninth embodiment

[0148] As shown in Figure 41, the electrical switch of this embodiment differs from the first embodiment in that a movable contact hard conductor 61 is connected between the movable contact 20 and the first terminal 40. The movable contact hard conductor 61 is a copper sheet. One end of the movable contact 20 is flat and movably connected to the flat hard conductor 61. A second hole 20a, a fulcrum for movement, is provided on the flat surface of the movable contact 20, and an alloy contact 20d is provided on the other end. This simple connection between the movable hard conductor and the movable contact eliminates the complex welding process required to connect a soft conductor to the movable contact. This reduces costs and frees up space for the movable contact to move, making it a common application in switches with limited internal space.

[0149] Tenth embodiment

[0150] As shown in Figure 42, the difference between the electric switch of this embodiment and that of the first embodiment is that the contact method between the moving contact 20 and the static contact 30 is a clamp-type contact. This embodiment adopts a clamp-type moving contact structure. When a large current passes through, the unidirectional current flowing through the two moving contacts will generate an electric suction force to clamp the static contact, which can greatly increase the contact pressure between the moving contact and the static contact and prevent the moving contact and the static contact from being repelled. It is often used in occasions with higher requirements for short-term current tolerance.

[0151] Eleventh embodiment

[0152] As shown in Figure 43, the electrical switch of this embodiment differs from the first embodiment in that the movable and stationary contacts have a dual-breakpoint structure. In this embodiment, two stationary contacts 30 are provided, located diagonally at opposite ends of the movable contact 20. Driven by a multi-link mechanism 104, the movable contact 20 rotates to separate from or contact the stationary contacts. Compared to a single-breakpoint movable contact, a dual-breakpoint movable contact has a faster opening speed, generates a higher arc voltage across the two breaks, and has a stronger current-limiting capability. It is often used in high-voltage, high-breaking-capacity applications.

[0153] In this embodiment, the double-breakpoint moving contact 30 and the two static contacts 30 constitute two breakpoints, and an arc channel is correspondingly provided at each breakpoint. The arc channel extends from the arc extinguishing chamber 80 close to the static contact 30 along one side of the arc extinguishing chamber, bends, and then extends from the outlet along the length direction of the insulating member. The outlet of the arc channel is provided on the side opposite to the opening direction of the moving contact 20. Such a setting lengthens the arc channel, so that the remaining short arc after being cut by the arc extinguishing chamber 80 is further dissipated, thereby achieving zero arcing performance of the switch under high voltage and high breaking conditions, greatly improving the safety and reliability of the switch during use.

[0154] Twelfth embodiment

[0155] As shown in FIG44 , the difference between the electrical switch of this embodiment and the first embodiment is that three arc extinguishing chambers 80 are arranged along the length direction of the electrical switch. Multiple arc extinguishing chambers are spliced ​​together to achieve the arc extinguishing performance of an integrated arc extinguishing chamber, while reducing the difficulty of riveting a single arc extinguishing chamber grid, thereby facilitating automated production.

[0156] Thirteenth embodiment

[0157] As shown in Figures 45 and 46 , the electrical switch of this example differs from the first embodiment in that the contact supports 21 for the three phases of the three-pole electrical switch are integrally formed. Specifically, the contact supports 21 of the first-pole switch 101, the contact supports 21 of the second-pole switch 102, and the contact supports 21 of the third-pole switch 103 form a single, integrated contact support structure. This integrated structure eliminates assembly steps, saving time and effort.

[0158] Fourteenth embodiment

[0159] As shown in FIG47 , the difference between the electric switch of this embodiment and the first embodiment is that the structure of the driving part is a lever type, and the driving part includes a transmission shaft 25 and a fifth rocker 10400. The transmission shaft is connected to the multi-link mechanism through the fifth rocker, and the transmission shaft 25 is indirectly connected to the side of the contact support 21 in any second cavity. The transmission shaft 25 is inserted from the first cavity to the second cavity, and one end is fixedly connected to the fifth rocker 10400 in the first cavity, and the other end is connected to the rotation center of the contact support 21 through the connecting shaft 24 in the second cavity. The side of the contact support here refers to the side between the two ends of the contact support. In the circumferential direction of the contact support, an extension arm extends outward from the side of the connecting shaft 24, and two extension arm through holes are provided on the extension arm. The two transmission shafts 25 extending from the multi-link mechanism 104 pass through multiple second cavities and are respectively inserted into the two corresponding extension arm through holes on the connecting shaft 24. The other ends of the two transmission shafts 25 are connected to the fifth rocker. In this embodiment, the transmission shaft passes through the first cavity and the second cavity and is connected to the side of the contact support in the second cavity, so that the driving force of the control mechanism directly acts on the middle pole of the three-pole switch, so that the moving contact of the three-pole switch is more evenly stressed, the transmission is more reliable, and the stability is high.

[0160] Fifteenth embodiment

[0161] As shown in Figures 48 to 49, the difference between the electrical switch of this embodiment and the fourteenth embodiment is that the contact support 21 is formed by splicing a first contact support 2101, a second contact support 2102 and a third contact support 2103. The first contact support 2101 has a female structure 21c, and the second contact support 2102 has a male structure 21d. The female structure 21c and the male structure 21d correspond to each other in position and cooperate with each other. The first contact support 2101 and the second contact support 2102 are spliced ​​together by the female structure 21c and the male structure 21d. Similarly, the second contact support 2102 and the third contact 2103 are also spliced ​​together by the female structure 21c and the male structure 21d thereon. The female structure 21c and the male structure 21d can assemble multiple contact supports 21 into one.

[0162] One end of the two transmission shafts 25 is connected to the contact support, and the other end is connected to the output rod 1041. In this embodiment, the structure of the driving part is a lever type, and the driving part of the control mechanism is the transmission shaft 25 and the fifth rocker 10400. The transmission shaft 25 connects the contact support 21 and the output rod 1041. Specifically, an extension arm is provided on the side of the contact support 21, and two extension arm through holes are provided on the extension arm. The transmission shaft includes a first transmission shaft 25a and a second transmission shaft 25b. The input ends of the first transmission shaft 25a and the second transmission shaft 25b are both connected to the fifth rocker 10400 of the multi-link mechanism. The first transmission shaft 25a is stepped and passes through the first contact support 210 1, the output end of the first transmission shaft 25a is connected to the second contact support 2102, the second transmission shaft 25b passes through the extension arm through holes on the first contact support 2101 and the second contact support 2102, and the output end of the second transmission shaft 25b is connected to the third contact support 2103. In this way, the movement force of the multi-link mechanism is first transmitted to the moving contact on the second contact support 2102, and then transmitted to the moving contact of the first contact support 2101 and the moving contact on the third contact support 2103 respectively. The moving contact of the three-pole switch is subjected to balanced force, which not only reliably transmits the movement force of the multi-link mechanism and has high stability, but also the extension arm of the contact support 21 wraps up the transmission shaft 25, which has high insulation.

[0163] As shown in Figures 50-57, to more clearly illustrate the implementation of the undervoltage release 170, auxiliary switch 180, alarm switch 190, and shunt release (not shown) in this switch, only the lever 1401, traction rod 1402, and contact support 21 are shown to illustrate how the undervoltage release 170, auxiliary switch 180, alarm switch 190, and shunt release are triggered in different switch states. The undervoltage release 170, auxiliary switch 180, alarm switch 190, and shunt release are disposed within the first cavity 150, on both sides of the multi-link mechanism 104.

[0164] The undervoltage release 170 includes a guide rod 1701 and an assisting member 1702. When the line voltage is lower than a certain value of the rated voltage, the coil of the undervoltage release is insufficient to maintain closure, and the tripping device that strikes the switch will be released, causing the switch to be disconnected, ensuring that the switch will not be closed by mistake, thereby ensuring the safety of the line load. The undervoltage release 170 is an assisted suction structure. When the switch is in the closed state, the undervoltage release 170 performs a release action, and the undervoltage release 170 drives the guide rod 1701 to move. The striking portion 1701a of the guide rod 1701 strikes the traction rod 1402, causing the switch to trip, and resists the traction rod 1402 to maintain it in the tripped state, realizing the disconnection of the switch. The undervoltage release 170 needs to be energized before closing the switch again. Since the undervoltage release 170 is an assisted suction structure, external force is required to energize the undervoltage release 170, so during the re-closing process, In the process, the lever 1401 touches the first contact part 1702a of the assisting member 1702, and rotates itself to make the second contact part 1702b contact the reset part 1701b of the guide rod 1701, pushing the guide rod 1701 to drive the undervoltage release 170 to be attracted and reset, so that the striking part 1701a of the guide rod 1701 is away from the traction rod 1402, realizing normal closing of the switch, and at the same time, the assisting member 1702 returns to its original position under the action of the reset spring (not shown), waiting for the next release of the undervoltage release 170 to reset and attract.

[0165] The shunt release is generally used for remote control to disconnect the switch. The shunt release is also an auxiliary suction type structure, and is installed in the same position as the undervoltage release 170. When the switch needs to be disconnected remotely, the shunt coil of the shunt release is released, driving the guide rod 1701 to move, hitting the traction rod 1402 to trip the switch and thus open the circuit breaker. When the next closing is to be performed, the auxiliary member 1702 is re-engaged to reset the shunt release. At the same time, the auxiliary member 1702 returns to its original position under the action of the reset spring, waiting for the next release of the shunt release to reset and close.

[0166] The auxiliary switch 180 includes a trigger rod 1801 and auxiliary contacts. The auxiliary contacts operate simultaneously with the main contacts. The main contacts here refer to the moving contacts of the electrical switch. The auxiliary contacts are used to indicate the open and closed states of the main contacts. In many cases, the main contacts of the circuit breaker have a large current or a high voltage and cannot be used directly for monitoring. They must be replaced by an auxiliary switch, and the open and closed states of the switch are judged by the state of the auxiliary switch. In a switch, the auxiliary switch is generally in one state in the closed state and in another state in the free tripping or open state. The contact support 21 and the moving contact of the switch operate synchronously. Therefore, the auxiliary switch 180 can be triggered by using the contact support 21 in different positions to judge the open and closed states of the switch. The contact support 21 is provided with a rocker 211. When the switch is in the open or free-tripping state, if the contact support 21 drives the rocker 211 to contact the trigger rod 1801 of the auxiliary switch 180, the contact state of the auxiliary switch 180 changes from normally closed to normally open. When the switch is closed, the contact support 21 drives the rocker 211 away from the trigger rod 1801 of the auxiliary switch 180, thereby changing the contact state of the auxiliary switch 180 from normally open to normally closed, completing the state transition of the auxiliary switch 180. Alternatively, the auxiliary switch 180 can be disposed within the second cavity 160, with the contact support 21 directly triggering the auxiliary switch 180 to change state.

[0167] The alarm switch operates only when the switch trips due to a fault, and does not operate during normal opening operations. This function is used to determine whether the circuit breaker tripped due to a fault. In a switch, the drawbar is typically in one position when the switch is locked and closed, and in another position when it is free to trip. The drawbar's position can be used to determine whether the switch tripped due to a fault. Alarm switch 190 includes a trigger lever 1901, a rocker 1902, and a compression spring 1903. Trigger lever 1901 is linked to drawbar 1402 via rocker 1902. The compression spring is located on the side of rocker 1902 closest to drawbar 1402. When the switch is released again or closed, the traction rod 1402 flips over under the action of the trip button in the multi-link mechanism 104, and the side of the rocker 1902 close to the traction rod 1402 moves with the traction rod 1402 under the action of the spring 1903. At this time, the trigger rod 1901 moves with the other side of the rocker 1902. If the contact state of the alarm switch 190 changes from normally closed to normally open, when the switch trips due to a fault, the traction rod 1402 is reset, and the trigger rod 1901 returns to its original position through the rocker 1902, thereby changing the contact state of the alarm switch 190 from normally open to normally closed, completing the state conversion of the alarm switch 190.

[0168] Sixteenth embodiment

[0169] As shown in Figure 58, the difference between the electric switch of this embodiment and the first embodiment is that the control mechanism is an electric control mechanism, which is arranged in the first cavity of the electric switch. The control mechanism includes at least a motor 112, a transmission mechanism 113, and an electronic controller. In this embodiment, the motor drive shaft is the driving part of the control mechanism. The transmission mechanism 113 adopts a multi-stage gear transmission. The multi-pole gear is a mechanical structure connecting the driving part and the multi-link mechanism. One end of the transmission mechanism is connected to the motor 112, and the other end is connected to the half-shaft 1061. It is connected to the multi-link mechanism 104 through the half-shaft 1061. The motor 112 is connected to the electronic controller signal. The electronic controller transmits a signal to control the rotation of the motor 112. The rotation of the motor 112 drives the multi-link mechanism 104 to move, thereby driving the moving contact 20 to move, and realize electrical contact or separation with the static contact 30. In this way, electric operation can replace manual operation, and there is no need for operators to arrive at the site. The electric switch can be opened and closed under remote signal control.

[0170] Seventeenth embodiment

[0171] As shown in Figure 59, the electric switch of this embodiment differs from the first embodiment in that the control mechanism is an electromagnetic drive control mechanism, which is disposed within the first cavity of the electric switch. The control mechanism includes at least an electromagnet 115 and a multi-link mechanism 104. The electromagnet 115 is mechanically connected to the multi-link mechanism 104. The electromagnet serves as the driving portion of the control mechanism, and the multiple links contained in the multi-link mechanism serve as the mechanical structure. When energized, the electromagnet 115 generates a driving force that is transmitted to the multi-link mechanism 104, which drives the movable contact 20 to move, achieving electrical contact and separation with the static contact 30. By providing an electromagnetic drive control mechanism, the electromagnet converts electromagnetic energy into mechanical energy, driving the movable contact to achieve opening and closing operations of the switch, resulting in reliable switch performance, long service life, and fast response speed.

[0172] Eighteenth embodiment

[0173] As shown in Figures 60 and 61, unlike the first embodiment, the multi-link mechanism 104 is indirectly connected coaxially with the central axis of the contact support in the first cavity, driving the movable contact 20 on the contact support 21 to perform a compound motion of moving back and forth and rotating along the switch length direction of the X-axis, and electrically connecting and disconnecting with the static contact.

[0174] Specifically, the driving part includes a transmission shaft 25 and an output rod 1041. The three contact supports 21 are assembled into one piece from bottom to top along the switch height direction of the Z axis through the connecting shaft 24. One end of the connecting shaft 24 is connected to the contact support 21, and the other end is hinged to the connecting rod 34. The other end of the connecting rod 34 is hinged to the insulating boss of the insulating member. The connecting rod 34 can rotate around the axis of the insulating boss. In this embodiment, the transmission shaft is a mechanical structure. The end of the contact support 21 at the top is connected to the multi-link mechanism 104 through the transmission shaft 25. A transmission shaft 25 is inserted therein and connected to the output rod 1041 of the multi-link mechanism 104 along the switch height direction of the Z axis. The output rod 1041 drives the transmission shaft 25 to slide along the third slide groove 1042a on the side plate 1042, driving the contact support 21 to slide, and then driving the movable contact 20 to move back and forth along the switch length direction of the X axis. At the same time, the output rod 1041 rotates along the axis of the transmission shaft 25 under the action of the upper link, lower link, and other multiple links of the multi-link mechanism, driving the contact support 21 to rotate along the axis, and then driving the movable contact 20 to rotate. In this embodiment, a multi-link structure is used to transmit power to achieve the compound movement of the movable contact. Compared with a rack and pinion transmission, it has a simple and reliable structure, easy parts manufacturing and assembly, and low production cost.

[0175] Nineteenth embodiment

[0176] As shown in Figures 62 and 63, unlike the eighteenth embodiment, the multi-link mechanism 104 is indirectly connected to the center axis of the contact support 21 in the second cavity, driving the moving contact 20 on the contact support 21 to perform a combined movement of movement and rotation, and to electrically connect and disconnect with the static contact.

[0177] Specifically, one end of the connecting shaft 24 is connected to the contact support 21, and the three contact supports 21 are assembled into one through the connecting shaft 24. The other end of the connecting shaft 24 is connected to the connecting rod 34. The driving part 1040 includes a transmission shaft 25 and an output rod 1041. The two transmission shafts 25 pass through multiple second cavities and are respectively inserted into the connection between the connecting shaft 24 and the connecting rod 34 and the other end of the connecting rod 34. The output rod 1041 drives the transmission shaft 25 to slide along the third slide groove 1042a on the side plate 1042, driving the contact support 21 to slide forward and backward along the upper slide groove 10a and the lower slide groove 11a of the insulating part, and then drives the moving contact 20 to slide. At the same time, the output rod 1041 rotates along the axis of the transmission shaft 25 under the transmission action of the upper link, lower link and other multi-link mechanisms, driving the contact support 21 to rotate, and then driving the moving contact 20 to rotate. In this way, the driving force of the multi-link mechanism 104 in this embodiment directly acts on the middle pole of the three-pole switch, so that the moving contact of the three-pole switch is more evenly stressed, the transmission is more reliable, and the stability is high.

[0178] Twentieth embodiment

[0179] As shown in Figures 64, 65 and 66, compared with other embodiments, the structure of the driving part in this embodiment is a rotating rod type. The driving part 1040 drives the moving contact 20 in a one-degree-of-freedom motion mode, and the driving action output is in the form of rotation. The driving part 1040 at least includes a transmission shaft 25, a first rocker 10401, a second rocker 10402, a third rocker 10403, and a linkage rod 10405. The control mechanism is set in the first cavity 150, and the transmission shaft 25 is inserted from the first cavity 150 to the second cavity 160, and is set parallel to the rotation center of the moving contact 20. The transmission shaft 25 is connected to the multi-link mechanism 104 of the control mechanism through two first rocker rods 10401, that is, the first rocker rod 10402. One end of 401 is connected to the transmission shaft 25, and the other end is connected to the multi-link mechanism 104. It rotates under the control of the multi-link mechanism 104 of the control mechanism. The transmission shaft 25 is connected to one end of the second rocker arm 10402, and the other end of the second rocker arm 10402 is hinged to the linkage rod 10405. The linkage rod 10405 is connected to the contact support 21 through the third rocker arm 10403; the contact supports 21 are coaxially and stacked in multiple second cavities 160, and are connected between the contact supports 21 through non-rotatable connecting shafts 24. When the transmission shaft 25 rotates, the rotational motion is transmitted to the contact support 21 through the linkage rod 10405, so that the moving contact 20 and the static contact 30 can be electrically connected and disconnected.Since the multi-link mechanism 104 of the control mechanism is arranged in the first cavity 150, and the contact support 21 is arranged in a stacked manner in the second cavity 160, its height will increase as the frame current increases, and the pressure on the moving contact 20 will also increase. The multi-link mechanism 104 of the control mechanism is prone to flipping when operated on one side, which will cause the moving contact at the far end to not close in place. By adopting a one-degree-of-freedom rotation drive method, the rotational force is applied to the middle layer contact support 21 to solve the deflection problem. The rotation center of the drive part 1040 is parallel to the rotation center of the contact support 21 but is not arranged on the same axis. The torsional force is transmitted to the contact support 21 in the middle position through the transmission shaft 25 to perform closing and opening operations, which has the effect of rapid and smooth movement. The transmission shaft 25 is set as a hexagonal shaft, which cooperates with the hexagonal holes on the first rocker arm 10401 and the second rocker arm 10402. When the transmission shaft 25 rotates, the first rocker arm and the second rocker arm can also swing synchronously. The shaft hole cooperation of the transmission shaft 25 and the first rocker arm and the second rocker arm is not limited to hexagonal, but can also be triangular. The contact supports 21 are stacked and connected by connecting shafts 24. The connecting shafts 24 are installed at the rotation center of the contact supports 21. The connecting shafts 24, the contact supports 21, and the third rocker 10403 are fixedly connected to each other and cannot rotate relative to each other, so that all the contact supports 21 can rotate synchronously together. The third rocker 10403 and the second rocker 10402 are hinged with a linkage rod 10405. When the control When the multi-link mechanism 104 of the mechanism performs closing and opening operations, a swinging force is first applied to the first swing rod 10401. The force causes the first swing rod 10401 to rotate, transmitting the rotational force to the second swing rod 10402. The second swing rod 10402 then swings and transmits the swinging force to the third swing rod 10403 via the linkage rod 10405. The third swing rod 10403 transmits the swinging force to the contact support 21, causing rotational movement, thereby connecting and disconnecting the moving contact 20 and the stationary contact 30. The lengths of the three swing rods in this embodiment can be adjusted to suit the required torque and angle of rotation, allowing for the transmission of a larger rotation angle or the achievement of a greater torque.

[0180] Twenty-first embodiment

[0181] As shown in Figures 67 and 68, compared with other embodiments, the driving portion 1040 of this embodiment drives the moving contact 20 in a one-degree-of-freedom motion mode, the driving action output is in the form of rotation, the structure of the driving portion is a rotating rod type, the driving portion 1040 at least includes a transmission shaft 25 and a fourth rocker 10404, the multi-link mechanism 104 of the control mechanism is arranged in the first cavity 105, the transmission shaft 25 is connected to the multi-link mechanism 104 of the control mechanism through at least two fourth rocker bars 10404, and rotates under the control of the multi-link mechanism 104 of the control mechanism. Rotational motion, the rotation center 212 of the contact support 21 is eccentric to the rotation center of the movable contact 20 relative to the contact support 21, the distance between the rotation center 212 of the contact support 21 and the alloy contact 20d of the movable contact is greater than the distance between the rotation center of the movable contact 20 and the alloy contact 20d, the transmission shaft 25 is inserted from the first cavity 105 to the second cavity 160, and passes through the rotation center 212 of the contact support 21, the transmission shaft 25 and the rotation center 212 of the contact support 21 are coaxially arranged, and the transmission shaft 25 and the contact support 21 are fixedly connected and cannot rotate with each other;The contact supports 21 are coaxially and stacked in a plurality of second cavities 160, and are connected between the plurality of contact supports 21 by a non-rotatable connecting shaft 24. The fourth swing arm 10404 is driven by the multi-link mechanism 104 of the control mechanism to perform a swing motion, so that the transmission shaft 25 performs a rotational motion to drive the contact support 21 to perform a rotational motion, so that the moving contact 20 and the static contact 30 are electrically connected and disconnected. Since the circuit breaker requires a larger opening distance between the moving contact and the static contact under high voltage level application conditions to achieve a larger electrical gap, compared with the previous embodiment, the rotation center 212 of the contact support 21 in this embodiment is moved away from the moving contact closing The gold contact 20d can achieve a larger rotation radius without changing the length of the moving contact 20, so that the opening distance of the moving contact 20 is larger under the same rotation angle and space conditions. The transmission shaft 25 is inserted into the rotation center 212 of the contact support 21, and the torsional force is transmitted to the contact support 21 through the transmission shaft 25, so that the entire contact support 21 rotates. When the moving contact 20 contacts the static contact 30, the rotation between the moving contact 20 and the contact support 21 is realized to achieve contact overtravel and contact pressure. By eccentrically setting the rotation center 212 of the contact support 21 and applying the torsional force directly to the contact support 21, the contact support 21 is The rotation of the support 21 drives the moving contact to contact and separate with the static contact. The transmission shaft 25 is set as a hexagonal shaft, which cooperates with the hexagonal hole of the fourth swing rod 10404 and the rotation center 212 of the contact support 21. When the transmission shaft 25 rotates, the contact support 21 can also rotate accordingly. The shaft hole cooperation between the transmission shaft 25 and the fourth swing rod 10404 and the rotation center 212 of the contact support 21 is not limited to a hexagonal shape, but can also be a triangle, a quadrilateral, a polygon, a special shape, etc. that cannot rotate with each other to achieve the effect of transmitting rotational motion. The contact support 21 is stacked and connected by a connecting shaft 24. The connecting shaft 24 is installed on the contact The support 21 and the rotating center of the moving contact 20, as well as the connecting shaft 24 and the contact support 21, are fixedly connected and cannot rotate relative to each other, allowing all contact supports 21 to rotate synchronously. The fourth swing arm 10404 is connected to the multi-link mechanism 104 of the control mechanism. When the control mechanism performs closing and opening operations, swinging force is first applied to the fourth swing arm 10404. The force applied to the fourth swing arm 10404 causes the transmission shaft to rotate. The transmission shaft 25 transmits the rotational force to the contact support 21, which rotates with the moving contact 20, achieving the connection and disconnection of the moving contact 20 and the stationary contact 30. In this embodiment, the length of the fourth swing arm 10404 and the spacing between the rotation center 212 of the contact support 21 and the alloy contact point 20d of the moving contact can be adjusted according to the required torque and angle of rotation. This can achieve a larger rotation angle or greater torque, better achieving a larger opening distance and increasing the rated voltage level.

[0182] Twenty-second embodiment

[0183] As shown in Figures 69 and 70, different from the first embodiment, the multi-link mechanism 104 of this embodiment includes two groups of four-link structures, and the multi-link mechanism 104 includes a first link 10411, a second link 10412, a third link 10413, a fourth link 10414, a fifth link 10415, a fixed plate 10417 and a jumper rod 10418. One end of the first link 10411 is fixedly hinged to the jumper rod 10418, and the hinge point is point A. The other end of the first link 10411 is movable and can be rotatably hinged to one end of the second link 10412, and the hinge point is point B. The other end of the second link 10412 is movable and can be rotatably hinged to one end of the third link 10413, and the hinge point is point C. The other end of the third link 10413 is fixedly hinged to the fixed plate 10417, and the hinge point is point D. , and the third link 10413 can rotate around the hinge point D, the first link 10411, the second link 10412, and the third link 10413 form a first four-link structure; one end of the fourth link 10414 is hinged to the third link 10413, and the hinge point is point E. The other end of the fourth link 10414 is hinged to the fifth link 10415, and the hinge point is point H. The fifth link 10415 is fixedly hinged to the fixed plate 10417, the hinge point is point G, and the fifth link 10415 can rotate about hinge point G. The third link 10413, the fourth link 10414, and the fifth link 10415 form a second four-bar linkage. The other end of the fifth link 10415 can rotate and slide within the slide slot 10416. The hinge point of the fifth link 10415 within the fourth slide slot 10416 of the fixed plate 10417 is point F. As the output end of the multi-link mechanism, the fifth link 10415 can drive the contact support 21 to rotate.

[0184] In this embodiment, the first four-link structure and the second four-link structure together form a multi-link mechanism 104, wherein the lever ratio DE / CD between the distance DE between hinge point D and hinge point E and the distance CD between hinge point C and hinge point D is greater than 1.0; and the lever ratio FG / GH between the distance FG between hinge point F and hinge point G and the distance GH between hinge point G and hinge point H is greater than 1.0. By adjusting the lever ratio of the multi-link mechanism, the contact support angle during opening and closing is amplified, thereby increasing the angle between the moving contact and the static contact. In other embodiments, the number of links included in the multi-link mechanism can be increased or decreased to achieve the same angle amplification effect. In this way, the switch can achieve a large contact opening distance, which can better meet the high voltage, high breaking, and zero arcing requirements of the new power system for switching electrical appliances.

[0185] As shown in Figures 71 and 72, the structure of the driving part in this embodiment is a lever type, and the driving part includes a fifth connecting rod 10415 and a transmission shaft 10420. The driving part is directly driven by other connecting rods of the multi-link mechanism. The transmission shaft 10420 is plug-inly connected to the connecting part 212 of the contact support 21. The contact support 21 rotates around its own axis 211 under the tossing of the driving part, so that the moving contact and the static contact can be electrically connected and disconnected.

[0186] Twenty-third embodiment

[0187] As shown in Figures 73 to 75 , the electrical switch of this embodiment differs from the first embodiment in that the side of the contact support 21 in any second cavity is indirectly connected to the multi-link mechanism 104. This allows the multi-link mechanism to act on the contact support of the middle phase pole of the switch, improving the stability of motion transmission.

[0188] The multi-link mechanism 104 of the control mechanism is arranged in the first cavity. The multi-link mechanism of the control mechanism is a four-link structure, including an upper link 10431, a lower link 10432 and an output rod 1041 which are connected in rotation in sequence. The end of the output rod 1041 is provided with a waist hole 1041a, and the middle part of the output rod 1041 is hinged with the axis on the side plate 1042 of the control mechanism. The contact support 21 is coaxially and stacked in multiple second cavities. The multiple contact supports 21 are connected by a non-rotatable connecting shaft 24. At least one gear 24a is provided on the rotating axis of the connecting shaft 24, and at least one rack is also provided opposite to the outer edge of the gear 24a. The gear 24a rotates or moves with the contact support 21, and the rack is fixed or integrated with the insulating part. When the contact support moves along the slide groove, the gear on the contact support will rotate along itself under the torsional torque of the rack, and then drive the moving contact to perform a combined movement of movement and rotation to connect or disconnect electricity with the static contact.

[0189] The control mechanism is provided with a driving portion for directly or indirectly driving the side movement of the contact support, and the structure of the driving portion is a lever type.

[0190] Specifically, the drive unit includes an output rod 1041, a transmission shaft 25, a first rod 1045, and a second rod 1046. The transmission shaft 25 can slide within a waist hole 1041a. A third slide groove 1042a is provided on the side plate 1042 of the control mechanism. The transmission shaft 25 passes through the waist hole 1041a and the third slide groove 1042a. One end of the first rod 1045 is connected to the transmission shaft 25, and the other end of the first rod 1045 is connected to one end of the second rod 1046. The other end of the second rod 1046 is hingedly engaged with the rotation center of the contact support 21, allowing the contact support 25 to rotate about its connection with the second rod 1046. The movement of the output rod 1041 of the multi-link mechanism causes the transmission shaft 25 to move along the third slide groove 1042a on the side plate 1042. The first rod 1045 and the second rod 1046 then drive the contact support 21 to move along the slide groove on the insulating member 10 of the insulating housing. As the contact support 21 moves along the slot 10a on the insulator, the gear 24a on the contact support 21 rotates due to the torsional torque of the rack 26, driving the moving contact in a combined movement and rotation to connect or disconnect the electrical current with the stationary contact. A guide hole 12a is provided in the insulator 10 for the second rod 1046 to move along the length of the switch. Both ends of the first rod 1045 are welded with sleeves to enhance the stability of force transmission.

[0191] Twenty-fourth embodiment

[0192] As shown in Figures 76 and 77, the difference between this embodiment and the first embodiment is that the driving part includes an output rod 1041, a third rod 1047 and a transmission shaft 25, and the multi-link mechanism of the control mechanism is a four-link structure, which includes an upper link 10431, a lower link 10432 and an output rod 1041. The middle part of the output rod 1041 is hinged to the shaft on the side panel of the control mechanism, and a circular hole 1041b is provided at the end of the output rod 1041. One end of the third rod is hinged to the output rod through the circular hole 1041b, and the other end is hinged to the transmission shaft 25. One end of the transmission shaft 25 is connected to the center end of the uppermost contact support and passes through the third slide groove on the control mechanism. The output rod 1041 of the multi-link mechanism drives the transmission shaft 25 to move along the third slide groove, thereby driving the contact support to move.

[0193] Twenty-fifth embodiment

[0194] As shown in FIG78 , the difference between this embodiment and the twenty-fourth embodiment is that the multi-link mechanism 104 is indirectly connected to the side of the contact support 21 in any second cavity. This method allows the multi-link mechanism to act on the contact support of the middle phase pole of the switch, thereby improving the stability of motion transmission.

[0195] The driving part includes an output rod 1041, a third rod 1047, a transmission shaft 25, a first rod 1045 and a second rod 1046. The multi-link mechanism 104 includes an upper link, a lower link and an output rod 1041. A circular hole 1041b is provided at the end of the output rod 1041. One end of the third rod 1047 passes through the circular hole 1041b and is hinged to the output rod 1041, and the other end is hinged to the transmission shaft 25. The transmission shaft 25 passes through the third slide groove 1042a of the control mechanism and is connected to one end of the first rod 1045. The other end of the first rod 1045 is connected to one end of the second rod 1046. The other end of the second rod 1046 is hinged to the rotation center of the contact support 21 in any second cavity. When the output rod 1041 of the control mechanism drives the third rod 1047 to move, the third rod drives the transmission shaft to move up and down along the third slide groove of the control mechanism, and drives the contact support to move up and down through the first rod and the second rod.

[0196] Twenty-sixth embodiment

[0197] As shown in FIG79 , the electrical switch of this embodiment differs from the first embodiment in that the internal components further include a current collector 300, at least one electronic controller 400, and a magnetic flux converter 500. The current collector 300 and the magnetic flux converter 500 are electrically connected to the electronic controller 400, respectively. The current collector 300 is disposed within the second cavity 160, while the electronic controller 400 and the magnetic flux converter 500 are disposed within the first cavity 150. The current collector 300 is used to detect the current at the second terminal 50. The electronic controller 400 receives and determines the current collected by the current collector 300. When the electronic controller 400 identifies the current collected by the current collector 300 as an overcurrent, it controls the magnetic flux converter 500 to operate, striking the drawbar 1402, thereby causing the switch to trip.

[0198] In other embodiments, as shown in FIG80 , the electronic controller 400 can be mounted as a separate unit below the multi-pole switch in the vertical direction. In this manner, the electronic circuit breaker offers rapid response, precise protection, efficient power management, and remote operation. It can detect circuit faults quickly and disconnect the circuit quickly, effectively preventing damage and accidents, significantly reducing the incidence of circuit accidents and improving circuit safety.

[0199] Twenty-seventh embodiment

[0200] As shown in Figure 81, different from the first embodiment, the first terminal 40 and / or the second terminal 50 of this embodiment is a clamping device 120. The clamping devices 120 on the first pole switch and the second pole switch are arranged up and down and the central axis P4 is coaxially arranged, that is, the two clamping devices 120 arranged up and down are arranged opposite each other without misalignment. This makes installation and wiring more convenient, eliminates the need for cumbersome screw connections, and greatly improves the efficiency of switch installation and wiring.

[0201] As shown in FIG82 , the central axes of the multiple upper and lower chuck devices can also be arranged non-coaxially. A distance exists between the central axis P5 of the upper chuck device 120 and the central axis P6 of the lower chuck device 120. In other words, the upper and lower chuck devices 120 are offset from each other along the width of the switch. The specific arrangement of the chuck devices can be flexibly adjusted according to different applications.

[0202] As shown in Figure 83, this embodiment also provides a power distribution system, including multiple groups of conductive buses 200 and multiple electrical switches. The multiple electrical switches are arranged along the width direction (Y-axis direction) and installed in the distribution cabinet. The multiple groups of conductive buses 200 are arranged in sequence along the height direction of the electrical switches. Each group of conductive buses 200 extends along the width direction of the electrical switch. The phase poles are stacked along the depth direction of the cabinet, that is, the height direction of the switch. The conductive buses 200 are inserted into the slots 1001 at the ends of the electrical switches and clamped and connected with the clamping devices 120. This embodiment uses the clamping device to connect with the conductive buses, which makes installation and wiring more convenient, eliminates the cumbersome screw connection, and greatly improves the installation and wiring efficiency.

[0203] Twenty-eighth embodiment

[0204] As shown in Figure 84, unlike the first embodiment, the electrical switch is a four-pole electrical switch, which includes a first-pole switch 101, a second-pole switch 102, a third-pole switch 103 and a fourth-pole switch. The first terminal 40 or / and the second terminal 50 of this embodiment is a pulling device 140. Multiple pulling devices 140 are stacked along the height Z direction of the switch and the central axes are not coaxially arranged, that is, the central axis P1 of the pulling device 140 at one end of the first-pole switch 101, the central axis P2 of the pulling device 140 at one end of the second-pole switch 102, the central axis P3 of the pulling device 140 at one end of the third-pole switch 103, and the central axis P4 of the pulling device 140 at one end of the fourth-pole switch are not on the same axis.

[0205] Furthermore, the pulling device 140 is composed of at least a screw 140a, a terminal block 140b and a terminal frame 140c. The tightening direction of the terminal screw forms an angle of about 1 to 60 degrees with the Z-axis direction of the circuit breaker height direction. When the conductive bus is installed, the conductive bus can be in the form of a comb-shaped conductive bus, a straight bus, etc. When it is a straight bus, the terminal frame can be slotted to form a C-shaped terminal frame, which can avoid the straight bus from being obliquely inserted into the switch terminal and passing through the switches to facilitate current convergence. When the conductive bus is a comb-shaped conductive bus, the terminal frame can be a conventional tunnel-type terminal frame. The comb-shaped conductive bus is inserted into the tunnel-type terminal frame in an inclined form with each comb tooth spacing being the spacing of the switches installed side by side, and is fastened between the terminal block and the conductive bus to form electrical contact. This inclined layout terminal form saves space compared to the conventional step-type staggered layout terminal form, and the wiring method is also convenient and flexible, which can adapt to the installation of conductive buses, wires or UT terminals.

[0206] Twenty-ninth embodiment

[0207] As shown in Figures 85 and 86, this embodiment is different from the twenty-eighth embodiment in that the central axes of the multiple pulling devices 140 are coaxially arranged. Specifically, when the central axes or central axes of the first terminal 40 or the second terminal 50 of this embodiment are coaxially arranged in different phases and poles, the first terminal 40 or the second terminal 50 is provided with a pulling device, which at least includes a screw 501, a terminal block 503, a terminal frame 502, an inter-pole linkage insulating member 504, and an anti-loosening spring 505. The terminal block 503 and the terminal frame 502 are provided with through holes. The terminal block 503 is arranged in the terminal frame 502. The inter-pole linkage insulating member 504 and the anti-loosening spring 505 are coaxially arranged with the through holes. The screw 501, the terminal frame 502, the terminal block 503, the anti-loosening spring 505, and the inter-pole linkage insulating member 504 are arranged in the Z-axis direction according to the central axis or central axis. The arrangement is overlapped and repeated according to the number of phases and poles. A fixing shaft is provided on one of the screw 501 and the inter-pole linkage insulator 504, and a fixing hole is provided on the other. The fixing shaft is a square shaft or a polygonal shaft, and the fixing hole is a square hole or a polygonal hole. In order to make the width and volume of the switch narrower and the length smaller, the terminals of the switches of all poles are overlapped and coaxially arranged. When installing, the pulling device of the terminal of the first pole switch 101 is tightened with a screwdriver. At the same time, the pulling devices of the terminal of the second pole switch 102, the third pole switch 103, and the fourth pole switch 103C are also rotated to pull and press the wiring. The pulling device can be adjusted according to the The number of phases and poles are arranged in an overlapping manner, and an interpole linkage insulating member 504 is used for connection in the middle. When a screwdriver is used to tighten the wiring of the first pole switch 101, the interpole linkage insulating member 504 set between the first pole switch 101 and the second pole switch 102 transmits the torsional force to the pulling device of the second pole switch 102, so that the pulling device of the second pole switch 102 also performs a pulling and pressing action to press the terminal board 503 to achieve synchronous compression and wiring. In the same way, the third pole switch 103 and the fourth pole switch 103C also transmit the torsional force through the interpole linkage insulating member 504 to perform a pulling action to press the terminal board 503 for wiring. In order to ensure reliable wiring, an anti-loosening device is also provided in the pulling device. The spring 505, the screw 501 and the terminal frame 502 are threaded to lift the terminal frame, and a conductor is inserted between the two terminal blocks 503. One of the terminal blocks 503 is against the anti-loosening spring 505. When the terminal frame 502 is pulled up, the anti-loosening spring 505 is squeezed, and the anti-loosening spring 505 transmits the pressure to the terminal block 503. When it is pulled to the limit position, the anti-loosening spring 505 is fully compressed, and the gap between the terminal block 503 and the conductor is completely closed and pressure contact is made. The potential energy of the anti-loosening spring 505 is always maintained. When the switch is vibrated or the conductor yields, false contact or loosening failure will not occur, which greatly improves the safety of wiring installation and the reliability of long-term operation.

[0208] Thirtieth embodiment

[0209] As shown in Figures 87, 88 and 89, unlike the first embodiment, the screw crimping device 130 of this embodiment is composed of at least a screw 130a and a terminal block 130b. The screw pressing direction is consistent with the X-axis direction of the electrical switch. The nut is set below the terminal block or directly set with threads on the terminal block. The conductive bar 200 is provided with a slot or hole. The slot or hole on the conductive bar 200 surrounds the screw. After the screw is tightened, a crimping force is formed between the conductive bar 200 and the terminal block, so that electrical contact is achieved between the terminal block and the conductive bar 200. During disassembly, the screws are loosened, and the entire electrical switch slides along the Z-axis of the slotted direction, allowing individual switches to be disassembled and maintained without changing the position of the conductive bar 200. The housing of the electrical switch is also equipped with an insulating barrier between adjacent phases to electrically isolate the adjacent phases, increase creepage distance and electrical clearance, and improve system safety. This embodiment is very convenient for multi-way convergence or diversion in distribution boxes / cabinets, saving conductors, simplifying switch layout, facilitating installation, ensuring reliable electrical contact, and facilitating individual maintenance or replacement. In this embodiment, the conductive bar 200 is in the shape of an elongated strip. In other embodiments, the conductive bar can be L-shaped or U-shaped, and the specific shape is not limited.

[0210] The present application also provides a pressure plate device, as shown in Figure 90, the pressure plate device at least includes a screw 1101, a terminal block 1105, a pressure plate 1104, a spring washer 1102, a flat washer 1103, and a nut 1106. When the screw 1101 is tightened, the external conductive bar 1107 set between the terminal block 1105 and the pressure plate 1104 is subjected to force and fastened between the pressure plate 1104 and the terminal block 1105. The terminal block 1105 is provided with a threaded hole or a through hole and a nut 1106 that matches the screw 1101. The pressure plate 1104 is L-shaped, with a through hole in the middle that can pass the screw 1101, and the right-angle end 1104b is away from the external conductive bar. The straight end of the busbar 1107 is crimped onto the external conductive busbar 1107. The straight end is provided with a protrusion 1104a, which is located at the crimping position. The distance between the protrusion 1104a and the through hole is smaller than the distance between the right-angle end 1104b and the through hole. When the pressure plate device 110 is set in this way, when multiple switches are placed side by side for busbar wiring installation, the amount of busbar can be saved, and there is no need for overlapping and bending operations. The shape of the busbar can also be further simplified to save costs and improve efficiency. In order to achieve the above purpose, it is necessary to ensure that the busbar or the external conductive busbar 1107 can still be reliably crimped when it is only placed on one side of the screw 1101. The pressure plate 110 of this embodiment 4 is cleverly designed. The pressure plate 1104 is provided with a right-angle end 1104b and a raised portion 1104a. A through hole is provided in the middle of the pressure plate 1104 to pass the screw 1101. When the screw 1101 is tightened, the raised portion 1104a presses the external conductive bar 1107 tightly, so that the external conductive bar 1107 and the terminal block 1105 are firmly fitted and fastened to achieve reliable electrical contact. The raised portion 1104a is to solve the problem that when the screw 1101 is tightened and installed, the pressure plate 1104 will have elastic deformation, which will cause the pressure point of the pressure plate 1104 on the external conductive bar 1107 to change, causing the external conductive bar 1107 to loosen. In order to achieve more reliable In order to achieve a good fastening effect, the distance between the protrusion of the pressure plate 1104 and the through hole is smaller than the distance between the through hole and the right-angle end 1104b. This arrangement allows the downward pressure of the screw 1101 to be applied more on the external conductive bar 1107 through the protrusion 1104a, so that the fastening effect is better. In this embodiment, according to the elastic effect of the pressure plate 1104, its flat washer and spring washer can be used selectively to still achieve the anti-loosening effect. The terminal block 1105 can be processed into a threaded hole to cooperate with the screw 1101 for fastening, or a nut 1106 can be provided at the bottom to cooperate with the screw 1101 for fastening, both of which can achieve the effect of this embodiment.

[0211] Thirty-first embodiment

[0212] As shown in Figures 91, 92 and 93, compared with other embodiments, the multi-link mechanism 104 in this embodiment is indirectly connected coaxially with the central axis of the contact support 21 in the first cavity, driving the moving contact 20 on the contact support 21 to rotate along the switch height direction of the Z axis, and electrically connecting and disconnecting with the static contact 30.

[0213] Specifically, the driving part 1040 includes at least an output rod 1041, a transmission shaft 25 and a connecting shaft 24. The multi-link mechanism 104 of the control mechanism is arranged in the first cavity 105. The transmission shaft 25 is connected to the multi-link mechanism 104 of the control mechanism through the output rod 1041, and performs rotational motion under the operation of the multi-link mechanism 104 of the control mechanism. The transmission shaft 25 is inserted from the first cavity 105 into the multiple second cavities 160, passing through the rotation center of the contact support 21 and the output rod 1041. One end of the transmission shaft 25 passes through the square hole on the output rod 1041 and is rotatably plugged into the side plate 1042, and the other end is rotatably plugged into the insulating cover of the third pole switch 103. A through hole for the transmission shaft 25 to pass through is provided inside the connecting shaft 24. The connecting shaft 24 passes through the contact support 21, and the mating surface of the connecting shaft 24 and the contact support 21 is arched, and is fixedly connected to the contact support 21 and cannot rotate with each other; the contact support 21 is coaxial and stacked in multiple second cavities 160, one end of the connecting shaft 24 is a female structure 24a, and the other end is a male structure 24b. Multiple contact supports 21 are connected by the female structure 24a and the male structure 24b of the concentric and non-rotatable connecting shaft 24. The transmission shaft 25 runs through the connecting shaft 24, and the output rod 1041 is driven by the multi-link mechanism 104 of the control mechanism to perform a swing motion to make the transmission shaft 25 rotate to drive the contact support 21 to rotate, so that the moving contact 20 and the static contact 30 can be electrically connected and disconnected.

[0214] The transmission shaft 25 is inserted into the rotation center of the connecting shaft 24, and the torsional force is transmitted to the contact support 21 through the transmission shaft 25, so that the entire contact support 21 rotates. When the moving contact 20 contacts the static contact 30, the moving contact 20 and the contact support 21 rotate to achieve contact overtravel and contact pressure. By concentrically arranging the rotation centers of the transmission shaft 25 and the connecting shaft 24, and applying the torsional force directly to the contact support 21, the contact support 21 rotates to drive the moving contact to contact and separate from the static contact. The transmission shaft 25 is set as a hexagonal shaft, which cooperates with the hexagonal hole of the center of the connecting shaft 24 and the output rod 1041. When the transmission shaft 25 rotates, the contact support 21 can also rotate with it. The cooperation between the transmission shaft 25 and the output rod 1041 and the axial hole in the center of the connecting shaft 24 is not limited to a hexagonal shape, but can also be a triangle, quadrilateral, polygon, special shape, etc. that cannot rotate with each other to achieve the effect of transmitting rotational motion. Similarly, the mating surface of the connecting shaft 24 and the contact support 21 is not limited to the limitation of the arch shape.

[0215] The contact supports 21 are arranged in a stacked manner and connected by a connecting shaft 24. The connecting shaft 24 is installed at the rotation center of the contact support 21 and the moving contact 20. The connecting shaft 24 and the contact support 21 are fixedly connected to each other and cannot rotate relative to each other, so that all contact supports 21 can rotate synchronously together. The output rod 1041 is connected to the multi-link mechanism 104 of the control mechanism. When the control mechanism performs closing and opening operations, the swinging power is first applied to the output rod 1041. The output rod 1041 is subjected to force to cause the transmission shaft 25 to rotate. The transmission shaft 25 transmits the rotational force to the contact support 21 through the connecting shaft 24. The contact support 21 rotates with the moving contact 20, thereby realizing the connection and disconnection operations of the moving contact 20 and the static contact 30. In this example, the length of the output rod 24 can be adjusted according to the torque and angle requirements of the rotation, so as to transmit a larger rotation angle or achieve a larger torque. The transmission shaft 25 is inserted into the side plate 1042 and the insulating shell to maintain stability during the rotation process and reduce the torque loss caused by the offset. By running through the connecting shaft 24 and driving the contact support 21 to rotate around its center, better insulation performance between layers can be guaranteed.

[0216] The present application also provides connection structures of conductive bars and electrical switches in various structural forms. As shown in Figures 94 to 99, multiple first terminals of at least one electrical switch are directly or indirectly connected to multiple groups of conductive bars 200. The multiple groups of conductive bars 200 are arranged in a horizontal or vertical direction. The electrical switches are arranged in the horizontal or vertical direction following the multiple groups of conductive bars 200. The conductive bars 200 are in the shape of a flat straight bar or have a hole, opening, groove or protrusion on one side. When the conductive bars 200 are in the shape of a flat straight bar, any side of the conductive bars 200 is directly connected to the first terminal 40 of the electrical switch. When a hole, opening, groove or protrusion is provided on one side of the conductive bar 200, the side where the hole, opening, groove or protrusion is provided is directly or indirectly fixedly connected to the first terminal 40 of the electrical switch. The conductive member of the first terminal 40 extends out of or is shorter than the insulating shell of the switch. The multiple groups of conductive bars 200 are composed of at least one or two conductive bar groups 200. A gap is provided between the two conductive bars 200. The multiple first terminals 40 are inserted into the gap and electrically connected to the conductive bar 200 respectively. In the actual application of the power distribution system, the electrical switch can be configured according to the The number of switches and the length of the conductive bar 200 are determined by the number of current branches actually required. The layout of the switches and the conductive bar 200 can be either horizontal or vertical, and the layout can be configured according to the installation space and the shape of the distribution cabinet. The shape and structure of the conductive bar 200 can be flexibly changed according to the implementation scheme of the switch terminal 40. It can be a straight, flat conductive bar, or one with a hole, opening, groove, or protrusion on one side. The structural features of the different implementation schemes of the conductive bar 200 are mainly used to match the structural form of different switch terminal wiring devices and the current specifications. The number of conductive bars 200 is set according to the number of phases and poles of the switch. A single-pole switch uses one conductive bar, a two-pole switch uses two conductive bars, a three-pole switch uses three conductive bars, and a four-pole switch uses four conductive bars. The conductive bars 200 are arranged according to the stacking direction of the switches, and their spacing is arranged according to the inter-layer spacing of the switches. This enables the conductive bar 200 to be accurately inserted into the first terminal 40 of each phase and pole to facilitate electrical connection and distribute electrical energy.When the first terminal 40 of the electrical switch is set as a clamping device 120, the conductive bar 40 can be set as a flat straight bar, and the flat end can be directly inserted into the clamp to achieve electrical contact, which is convenient and quick to install, and the conductive bar structure is also simple and easy to process. When the first terminal 40 of the electrical switch is set as a screw clamping device 130, the conductive bar 200 can be directly pressed on the terminal board 130b to achieve electrical contact between the conductive bar 200 and the terminal board. In order to achieve better conductive effect, a conductive connecting strip 130d can be set on the conductive bar 200 and the terminal board to enhance conductivity. The structure of the terminal block 200 can be implemented as a flat straight bar or a hole, opening or groove can be set on one side to be electrically connected to the first terminal 40. Multiple groups of conductive bars 200 extend into the insulating housing of the electrical switch and are adjacent to the first terminal 40 or are set on the first terminal 40 with a crimping piece for compression and tightening to achieve multi-pole switch matching with multiple groups of conductive bars. 200 installation, when the electric switch, the first terminal 40 is set to the pull-up device 140, the gap between the terminal board and the terminal frame is tightened by the screw and the thread of the terminal frame, so that the conductive bar 200 inserted into the gap is pressed and fixed between the terminal board, and a protrusion is provided on one side of the conductive bar 200, and the protrusion is inserted into the gap and pressed and fixed to realize electrical connection. When the electric switch, the first terminal 40 is set to the pressure plate device 110, the gap between the terminal board and the pressure plate is tightened by the screw and the thread or nut of the terminal board, so that the conductive bar 200 inserted into the gap is pressed and fixed between the terminal board. The conductive bar is a flat straight strip. The conductive bar set in this way has a simple structure and easy processing. The implementation plan of the electric switch in the power distribution system of this case is not limited to the above combination. Its specific implementation plan can be combined and implemented according to the focus of consideration in the power distribution system, which has significantly improved operational reliability, economy, and ease of operation.

[0217] The present application may be implemented in other specific forms without departing from its spirit and essential characteristics. The present embodiments are to be considered in all respects as illustrative and not restrictive, the scope of the present application is defined by the appended claims rather than the foregoing description, and all changes that fall within the meaning and equivalents of the claims are thereby included within the scope of the present application.

Claims

1. An electrical switch, comprising an insulating housing and internal components, wherein the internal components at least include a moving contact, a contact support, a stationary contact, a control mechanism, a first terminal, and a second terminal. The insulating housing includes a first cavity for accommodating the control mechanism and at least two second cavities for accommodating the moving contact, the stationary contact, and the contact support; The first wiring terminal and the second wiring terminal are respectively arranged at two ends of the second cavity; The first cavity and the plurality of second cavities are stacked up and down, and the first cavity is arranged above the plurality of second cavities; The static contact is directly or indirectly connected to the first terminal and / or the second terminal; The first terminal and / or the second terminal are provided with a clamping device or a pressing plate device or a screw crimping device or a lifting device; The middle axes or central axes of the first terminal or the second terminal arranged in different phases or poles are coaxially arranged or non-coaxially arranged; The moving contact is arranged on the contact support and moves together. The contact support rotates and / or moves under the direct or indirect drive of the control mechanism, driving the moving contact and the static contact to electrically connect or disconnect.

2. The electrical switch according to claim 1, wherein: The plurality of second cavities are in a strip shape or a rectangular shape, and the first cavity is in a square shape or a circle shape or a combination of a square shape and a circle shape.

3. The electrical switch according to claim 1, wherein: The internal element further comprises an arc extinguishing chamber, and the minimum width of the electrical switch is proportional to the length of the moving contact and / or the width of the arc extinguishing chamber.

4. The electrical switch according to claim 1, wherein: The minimum width of the electric switch is the sum of the diameters of the clamping screws of the two terminals.

5. The electrical switch according to claim 1, wherein: The first terminal and / or the second terminal can be arbitrarily combined with the clamping device, the pressing plate device, the screw crimping device and the lifting device arranged up and down in different phases and poles.

6. The electrical switch according to claim 1, wherein: The control mechanism directly or indirectly drives the end or side of the contact support to rotate the contact support by 10 to 130 degrees, thereby driving the moving contact and the static contact to be electrically connected or disconnected.

7. The electrical switch according to claim 1, wherein: The control mechanism directly or indirectly drives the end or side of the contact support to move the contact support by 1 to 50 mm, thereby driving the moving contact and the static contact to be electrically connected or disconnected.

8. The electrical switch according to claim 1, wherein: The control mechanism directly or indirectly drives the end or side of the contact support to make the contact support move 1 to 50 mm and rotate 10 to 130 degrees at the same time, driving the moving contact and the static contact to electrically connect or disconnect.

9. An electrical switch according to claim 6, 7 or 8, wherein: The control mechanism is provided with a driving part for directly or indirectly driving the end or side of the contact support to move, and the structure of the driving part is lever type, cantilever type, rotating rod type, lever type or any combination of the above structural forms.

10. The electrical switch according to claim 9, wherein: The structure of the driving part is cantilever type, and the driving part includes an output rod and a transmission shaft. One end of the transmission shaft is fixedly connected to the uppermost contact support end, and the other end is fixedly connected to the output rod. The transmission is driven by the multi-link mechanism of the control mechanism, so that the transmission shaft moves back and forth and rotates along the third slide groove on the multi-link mechanism and the slide groove on the insulating part of the insulating shell. The contact support is driven by the transmission shaft to rotate and move synchronously with the output rod, driving the moving contact and the static contact to be electrically connected or disconnected.

11. The electrical switch according to claim 9, wherein: The structure of the driving part is cantilever type, and the driving part at least includes a transmission shaft and an output rod.

12. The electrical switch according to claim 11, wherein: The transmission shaft is fixedly connected to the output rod, and the multiple contact supports are connected through the transmission shaft. The output rod moves under the drive of the multi-link mechanism of the control mechanism, transmits the driving force to the transmission shaft, drives the contact support to move together, and drives the moving contact to electrically contact or separate with the static contact.

13. The electrical switch of claim 9, wherein: The structure of the driving part is a lever type, and the driving part at least includes a transmission shaft and a fifth swing rod.

14. The electrical switch of claim 13, wherein: The multi-link mechanism of the control mechanism is arranged in the first cavity.

15. The electrical switch of claim 13, wherein: The transmission shaft is connected to the multi-link mechanism via a fifth swing rod, and performs rotational motion under the drive of the multi-link mechanism.

16. The electrical switch of claim 13, wherein: The contact supports are coaxially and stacked in a plurality of second cavities, and the plurality of contact supports are spliced ​​at the rotation center through a female and male structure with torque transmission.

17. The electrical switch of claim 13, wherein: There are two transmission shafts, one of which passes through the first cavity and the plurality of the second cavities to be connected to the plurality of contact supports, and the other passes through the first cavity and the first of the second cavities to be connected to the contact support in the second or third of the second cavities.

18. An electrical switch according to claim 14 or 15 or 16 or 17, wherein: The fifth swing rod is driven by the multi-link mechanism to swing, so that the transmission shaft performs a rotational motion to drive the contact support to perform a rotational motion, so that the moving contact and the static contact can achieve electrical connection and disconnection.

19. The electrical switch of claim 9, wherein: The structure of the driving part is a lever type, and the driving part includes an output rod and a transmission shaft. The transmission shaft is indirectly connected to the side of the contact support in any second cavity. The transmission shaft is inserted from the first cavity into the second cavity, one end of which is fixedly connected to the output rod in the first cavity, and the other end is connected to the rotation center of the contact support through a connecting shaft in the second cavity. The driving force is transmitted to the output rod through the multi-link mechanism of the control mechanism, and the output rod drives the transmission shaft to move, and then drives the connecting shaft to drive the contact support to move and rotate back and forth along the third slide groove on the multi-link mechanism and the slide groove on the insulating part of the insulating shell, thereby driving the moving contact and the static contact to be electrically connected or disconnected.

20. The electrical switch of claim 9, wherein: The structure of the driving part is a rotating rod type, and the driving part at least includes a transmission shaft, a first swing rod, a second swing rod, a third swing rod and a linkage rod.

21. An electrical switch according to claim 20, wherein: The multi-link mechanism of the control mechanism is arranged in the first cavity.

22. The electrical switch of claim 20, wherein: The transmission shaft is inserted from the first cavity into the second cavity and is arranged parallel to the rotation center of the moving contact.

23. An electrical switch according to claim 22, wherein: The transmission shaft is connected to the control mechanism via the first swing rod, and performs rotational motion under the drive of the control mechanism.

24. An electrical switch according to claim 23, wherein: The transmission shaft is connected to one end of the second swing rod, the other end of the second swing rod is connected to the linkage rod, and the linkage rod is connected to the contact support through the third swing rod. When the transmission shaft rotates, the linkage rod transmits the rotational motion to the contact support, so that the moving contact and the static contact can be electrically connected and disconnected.

25. The electrical switch of claim 9, wherein: The structure of the driving part is a rotating rod type, and the driving part at least includes a transmission shaft and a fourth swing rod.

26. An electrical switch according to claim 25, wherein: The multi-link mechanism of the control mechanism is arranged in the first cavity.

27. The electrical switch of claim 25, wherein: The transmission shaft is connected to the control mechanism via a fourth swing rod, and performs rotational motion under the drive of the control rod mechanism.

28. The electrical switch of claim 25, wherein: The rotation center of the contact support is eccentric to the rotation center of the movable contact relative to the contact support.

29. The electrical switch of claim 25, wherein: The transmission shaft is inserted from the first cavity into the second cavity and passes through the rotation center of the contact support. The transmission shaft is coaxially arranged with the rotation center of the contact support.

30. The electric switch according to claim 29, wherein the transmission shaft and the contact support are fixedly connected and cannot rotate relative to each other.

31. The electrical switch according to claim 29, wherein the contact supports are coaxially and stacked in a plurality of second cavities, and the plurality of contact supports are connected via a non-rotatable connecting shaft.

32. An electrical switch according to claim 25 or 26 or 27 or 28 or 29 or 30 or 31, wherein: The fourth swing rod is driven by the control mechanism to swing, so that the transmission shaft performs a rotational motion to drive the contact support to perform a rotational motion, so that the moving contact and the static contact can achieve electrical connection and disconnection.

33. The electrical switch of claim 9, wherein: The structure of the driving part is a lever type, and the driving part includes a fifth connecting rod and a transmission shaft. The driving part is directly driven by a multi-link mechanism of a control mechanism. The transmission shaft is plug-inly connected to the connecting part of the contact support. The contact support rotates around its own axis under the activation of the driving part, so that the moving contact and the static contact can achieve electrical connection and disconnection.

34. An electrical switch according to claim 33, wherein: The multi-link mechanism also includes a first link, a second link, a third link, a fourth link, a fixed plate and a jumper rod. The first link, the second link, the third link, the fourth link, the fifth link, the fixed plate and the jumper rod form two groups of four-link structures. The end of the fifth link can rotate around a fixed hinge point and can rotate and move in the fourth slide groove on the fixed plate. The fifth link as the output end of the multi-link mechanism can drive the contact support to perform rotational motion.

35. An electrical switch according to claim 34, wherein: The lever ratio DE / CD between the distance DE between the hinge point D of the third link and the fixed plate and the hinge point E of the third link and the fourth link and the distance CD between the hinge point C of the second link and the third link and the hinge point D is greater than 1.0; the lever ratio FG between the distance F of the fifth link in the fourth slide groove and the hinge point G of the fifth link and the fixed plate and the distance GH from the hinge point G to the hinge point H of the fourth link and the fifth link is greater than 1.

0.

36. The electrical switch of claim 9, wherein: The driving structure is of a lever type, and the driving part comprises an output rod, a transmission shaft, a first rod and a second rod.

37. An electrical switch according to claim 36, wherein: The transmission shaft passes through the waist hole of the control output rod and the third slide groove on the side plate of the control mechanism. One end of the first rod is connected to the transmission shaft, and the other end is connected to one end of the second rod. The other end of the second rod is hinged with the rotation center of the contact support. The contact support can rotate around the connection between it and the second rod. The transmission is transmitted by the multi-link mechanism of the control mechanism, so that the transmission shaft moves back and forth along the third slide groove on the multi-link mechanism, and drives the contact support to move along the slide groove on the insulating part of the insulating shell through the first rod and the second rod.

38. An electrical switch according to claim 36, wherein: The insulating member of the insulating shell is provided with a guide hole for the second rod to move.

39. An electrical switch according to claim 37, wherein: The multi-link mechanism of the control mechanism is arranged in the first cavity.

40. An electrical switch according to claim 39, wherein: The multi-link structure of the control mechanism is a four-link structure, including an upper link, a lower link, and an output rod. The middle part of the output rod is hinged with the shaft on the side plate of the control mechanism. The end of the output rod is provided with a waist hole, and the transmission shaft can slide in the waist hole.

41. The electrical switch according to claim 37, wherein the contact supports are coaxially and stacked in a plurality of second cavities, the plurality of contact supports being The two parts are connected by a non-rotatable connecting shaft.

42. An electrical switch according to claim 41, wherein: At least one gear is arranged on the rotation axis of the contact support or connecting shaft, and at least one rack is arranged opposite to the outer edge of the gear. The gear rotates or moves together with the contact support, and the rack is fixed or integrated with the insulating member.

43. An electrical switch according to claim 42, wherein: When the contact support moves along the slide slot, the gear on the contact support will rotate along itself under the torsional torque of the rack, thereby driving the moving contact to move and rotate in a combined motion to connect or disconnect electricity with the static contact.

44. The electrical switch of claim 9, wherein: The structure of the driving part is a lever type, and the driving part comprises an output rod, a third rod, and a transmission shaft.

45. An electrical switch according to claim 44, wherein: One end of the third rod is hinged to the output rod, and the other end is hinged to the transmission shaft. One end of the transmission shaft is connected to the center end of the uppermost contact support and passes through the third slide groove of the control mechanism. The output rod drives the transmission shaft to move along the third slide groove on the control mechanism, thereby driving the contact support to move.

46. ​​An electrical switch according to claim 45, wherein: The multi-link structure of the control mechanism is a four-link structure, including an upper link, a lower link, and an output rod. The middle part of the output rod is hinged with the shaft on the side plate of the control mechanism, and a circular hole structure is provided at the connection between the end of the output rod and the transmission shaft.

47. The electrical switch of claim 9, wherein: The structure of the driving part is a lever type, and the driving part comprises an output rod, a third rod, a transmission shaft, a first rod and a second connecting rod.

48. An electrical switch according to claim 47, wherein: One end of the third rod is hinged to the output rod, and the other end of the third rod is hinged to the transmission shaft. The transmission shaft passes through the third slide groove of the control mechanism and is connected to one end of the first rod. The other end of the first rod is connected to one end of the second rod. The other end of the second rod is hinged to the rotation center of the contact support in any second cavity. When the output rod of the control mechanism drives the third rod to move, the third rod drives the transmission shaft to move up and down along the third slide groove of the control mechanism, and drives the contact support to move up and down through the first rod and the second rod.

49. The electrical switch of claim 9, wherein: The driving part at least comprises an output rod, a transmission shaft and a connecting shaft, and the connecting shaft is insulated and penetrates into the contact support.

50. An electrical switch according to claim 49, wherein: The head and tail ends of the connecting shaft are respectively provided with a negative feature or a positive feature, and a plurality of connecting shafts are connected via the negative features and the positive features, and the plurality of connecting shafts are non-rotatable.

51. The electrical switch of claim 49, wherein: The transmission shaft passes through the shaft holes of the plurality of connecting shafts in sequence and is relatively fixedly connected to the plurality of connecting shafts, so that the plurality of contact supports rotate synchronously.

52. The electrical switch of claim 9, wherein: The driving part is disposed in at least one of the second cavities or at least a part or all of the driving part is disposed in the first cavity.

53. The electrical switch of claim 9, wherein: The driving part is mechanically connected to the contact support at the upper end, the lower end, the contact support of the second cavity, any part in the middle of the contact support, any combination of the above parts, or a connecting shaft on the contact support.

54. An electrical switch according to claim 53, wherein: The mechanical structure connection is any one or any combination of the following: connecting rod, shaft, rack, gear.

55. The electrical switch of claim 1, wherein: The control mechanism is a mechanical control mechanism, an electric control mechanism or an electromagnetic drive control mechanism.

56. An electrical switch according to claim 55, wherein: The control mechanism is disposed in the first cavity and / or the second cavity.

57. An electrical switch according to claim 55, wherein: The mechanical control mechanism comprises an operating handle, a multi-link mechanism and a spring.

58. An electrical switch according to claim 55, wherein: The electric control mechanism at least includes an electric motor, a gear transmission mechanism or a multi-link mechanism and an electronic controller.

59. An electrical switch according to claim 55, wherein: The electromagnetic drive control mechanism at least includes an electromagnet and a multi-link mechanism.

60. An electrical switch according to claim 57, 58 or 59, wherein: The multi-link mechanism is at least a four-link structure.

61. The electrical switch of claim 8, wherein: The control mechanism directly or indirectly drives the end or side of the contact support to make the contact support move 1 to 50 mm and rotate 10 to 130 degrees at the same time, and a gear structure is arranged on the contact support.

62. An electrical switch according to claim 8 or 61, wherein: The control mechanism directly or indirectly drives the end or side of the contact support to make the contact support move 1 to 50 mm and rotate 10 to 130 degrees at the same time, and a rack structure is arranged on the insulating shell.

63. An electrical switch according to claim 8 or 53, wherein: The control mechanism directly or indirectly drives the end or side of the contact support to make the contact support move 1 to 50 mm and rotate 10 to 130 degrees at the same time. The contact support is movably connected to the driving part of the control mechanism by a mechanical structure to drive the contact support to move forward and backward and rotate.

64. The electrical switch of claim 6, wherein: The control mechanism directly or indirectly drives the end or side of the contact support to rotate the contact support by 10 to 130 degrees. The end of the contact support is provided with a hole or shaft or protrusion coaxial with the central axis of the contact support or an arm or hole or shaft or protrusion not coaxial with the central axis of the contact support.

65. The electrical switch of claim 6, wherein: The control mechanism directly or indirectly drives the end or side of the contact support to rotate the contact support by 10 to 130 degrees. The side of the contact support is provided with a hole or shaft or protrusion or arm that is not coaxial with the central axis of the contact support.

66. An electrical switch according to claim 6 or 53, wherein: The control mechanism directly or indirectly drives the end or side of the contact support to rotate the contact support by 10 to 130 degrees. The contact support is movably connected to the driving part of the control mechanism by a mechanical structure to drive the contact support to rotate.

67. The electrical switch of claim 7, wherein: The control mechanism directly or indirectly drives the end or side of the contact support to move the contact support by 1 to 50 mm. The end of the contact support is provided with a hole or shaft or protrusion coaxial with the central axis of the contact support or an arm or hole or shaft or protrusion not coaxial with the central axis of the contact support.

68. The electrical switch of claim 7, wherein: The control mechanism directly or indirectly drives the end or side of the contact support to move the contact support by 1 to 50 mm, and the side of the contact support is provided with a hole or a shaft or a protrusion or an arm that is not coaxial with the central axis of the contact support.

69. An electrical switch according to claim 7 or 53, wherein: The control mechanism directly or indirectly drives the end or side of the contact support to move the contact support by 1 to 50 mm. The contact support is movably connected to the driving part of the control mechanism by a mechanical structure to drive the contact support to move forward and backward.

70. The electrical switch of claim 1, wherein: The first cavity and the second cavity are each composed of at least two insulating parts.

71. An electrical switch according to claim 70, wherein: The two insulating parts adjacent to the first cavity and the second cavity are an integrated structure.

72. The electrical switch of claim 70, wherein: The first cavity and the second cavity are at least formed by splicing an upper insulating member and a lower insulating member up and down.

73. The electrical switch of claim 70, wherein: The insulating member is provided with a slide groove, and the slide groove is arranged along the switch length direction of the X-axis.

74. The electrical switch of claim 1, wherein: The contact support is provided with a hole, a shaft or a protrusion coaxial with the central axis of the contact support in the first cavity or / and in the plurality of second cavities.

75. An electrical switch according to claim 74, wherein: The end of the contact support is provided with a circular boss coaxial with the central axis of the contact support, and the inner side of the circular boss is provided with through holes or grooves for connecting a plurality of the contact supports, and the contact support rotates around the axis of the circular boss.

76. An electrical switch according to claim 75, wherein: A connecting shaft is arranged in the through hole or the groove of the contact support, and a plurality of the contact supports are assembled into one piece along the switch height direction of the Z axis.

77. An electrical switch according to claim 76, wherein: The contact support provided with a plurality of moving contacts is an integrated setting or a split setting in which the female and male structures with torque transmission are spliced.

78. An electrical switch according to claim 75, wherein: The circular boss supported by the contact can be inserted into the slide groove of the insulating member, and the circular boss can move and rotate in the slide groove.

79. An electrical switch according to claim 75, wherein: A bearing is arranged on the circular boss, and the bearing can move and rotate in the slide groove.

80. The electrical switch of claim 73, wherein: The control mechanism is also provided with a third sliding groove along the switch length direction of the X-axis, and the third sliding groove on the control mechanism is arranged parallel to the sliding groove on the insulating member.

81. The electrical switch of claim 1, wherein: The moving contact and the stationary contact are of double-breakpoint structure.

82. An electrical switch according to claim 81, wherein: Two stationary contacts are arranged in the second cavity, and two contact parts are arranged at both ends of the moving contact. The contact supports the two contact parts of the moving contact to electrically contact and separate with the two stationary contacts under the direct or indirect action of the control mechanism.

83. An electrical switch according to claim 82, wherein: The insulating shell is buckled at both sides along the Y-axis direction to form a plurality of second cavities, in which at least a driving part, a moving contact, a stationary contact, a contact support, an arc extinguishing chamber, a terminal, and an arc guide plate are arranged, and connecting rods are arranged between the layers to link the moving contacts between the layers.

84. An electrical switch according to claim 83, wherein: The second cavity is composed of at least two cavities stacked in the Z-axis direction.

85. An electrical switch according to claim 83, wherein: Arc extinguishing chambers are arranged outside the two separation tracks of the moving contact and the static contact.

86. An electrical switch according to claim 85, wherein: The arc extinguishing chamber is composed of a plurality of metal grids insulated from each other and fixed by insulating materials, wherein the first grid corresponds to the arc-starting part of the static contact and the last grid corresponds to the arc guide plate, and the arc guide plate electrically connects the arcs generated by the two arc extinguishing chambers.

87. The electrical switch of claim 57, wherein: The operating handle is arranged above the multi-link mechanism along the switch height direction of the Z axis, and the operating handle can drive the multi-link mechanism to lock, open and close the switch.

88. An electrical switch according to claim 87, wherein: The operating handle is a rotating handle, the rotation center of the rotating handle is arranged along the switch height direction of the Z axis, and the rotating handle rotates 70 to 120 degrees around the rotation center.

89. An electrical switch according to claim 88, wherein: The rotary handle rotates 70 to 120 degrees clockwise around the rotation center from the re-locking or opening position to the closing position.

90. The electrical switch of claim 88, wherein: The rotary handle rotates 70 to 120 degrees clockwise around the rotation center from the closing position to the opening position.

91. The electrical switch of claim 87, wherein: The operating handle is a push-pull handle, and the push-pull handle moves along the switch length direction of the X-axis.

92. An electrical switch according to claim 91, wherein: The push-pull handle moves from back to front along the switch length direction of the X-axis, and the electrical switch moves from the unlocking or opening position to the closing position.

93. The electrical switch of claim 91, wherein: The push-pull handle moves from front to back along the switch length direction of the X-axis, and the electrical switch moves from the closing position to the opening position.

94. The electrical switch of claim 3, wherein: The arc extinguishing chamber is a combination of multiple metal sheets separated and insulated.

95. An electrical switch according to claim 94, wherein: The arc extinguishing chamber is arranged on the left side of the moving contact and / or the stationary contact.

96. An electrical switch according to claim 94, wherein: The arc extinguishing chamber is arranged between the first wiring terminal and the second wiring terminal along the switch length direction of the X-axis, and a plurality of arc extinguishing chambers are stacked along the switch height direction of the Z-axis.

97. An electrical switch according to claim 96, wherein: A total arc extinguishing chamber or a plurality of sub-arc extinguishing chambers are arranged along the switch length direction of the X-axis, and the plurality of sub-arc extinguishing chambers are assembled into a total arc extinguishing chamber.

98. The electrical switch of claim 96, wherein: During the opening and closing process of the switch, the movement trajectory of the moving contact crosses the center line O of the arc extinguishing chamber along the length direction. During the movement of the moving contact, the moving contact is located on one side of the center line O at the starting position and on the other side of the center line O at the ending position.

99. The electrical switch of claim 94, wherein: A gap is provided between the arc extinguishing chamber and the outer insulating member to form an arc channel, and an outlet of the arc channel is provided on the side which is the same as or opposite to the opening direction of the moving contact.

100. The electrical switch of claim 1, wherein: The internal component further comprises an overload release, and the overload release comprises at least one of a magnetic short circuit release and a thermal overload release.

101. The electrical switch of claim 100, wherein: The overload release is arranged between the first wiring terminal and the second wiring terminal along the switch length direction of the X-axis.

102. The electrical switch of claim 101, wherein: The magnetic short-circuit releaser and the thermal overload releaser are arranged on the static contact.

103. The electrical switch of claim 100, wherein: A plurality of the overload releasers are stacked along the switch height direction of the Z axis, and the overload releasers are connected with release rods, and the release rods drive the multi-link mechanism to release under the drive of the overload releasers.

104. The electrical switch of claim 1, wherein: The control mechanism side is provided with a shunt release and / or an undervoltage release and / or an alarm switch.

105. The electrical switch of claim 1, wherein: An auxiliary switch is arranged in the first cavity and / or in the second cavity.

106. The electrical switch of claim 1, wherein: The internal components also include a current collector, an electronic controller, and a magnetic flux converter.

107. The electrical switch of claim 106, wherein: The current collector and the magnetic flux converter are electrically connected to the electronic controller respectively.

108. The electrical switch of claim 106, wherein: The electronic controller and the magnetic flux converter are disposed in the first cavity.

109. The electrical switch of claim 106, wherein: The current collector is disposed in the second cavity.

110. The electrical switch of claim 106, wherein: The electronic controller is an independent unit module hung below the electric switch.

111. The electrical switch of claim 1, wherein: The internal elements arranged in the plurality of the second cavities are stacked to form a bipolar electrical switch, a tripolar electrical switch or a quadrupole electrical switch.

112. The electrical switch of claim 111, wherein: When the switch is a two-pole switch, it includes a first-pole switch and a second-pole switch, and both the first-pole switch and the second-pole switch are provided with the first wiring terminal and the second wiring terminal.

113. The electrical switch of claim 112, wherein: The first connection terminal and / or the second connection terminal of the first pole switch and the second pole switch are staggered left and right along the switch width direction of the Y axis and are distributed in an insulated manner up and down along the switch height direction of the Z axis.

114. The electrical switch of claim 113, wherein: The first connection terminals and / or the second connection terminals of the first pole switch and the second pole switch are arranged in a staggered and insulated manner along the switch length direction of the X-axis.

115. The electrical switch of claim 111, wherein: When the switch is a three-pole switch, it includes a first-pole switch, a second-pole switch and a third-pole switch, and the first-pole switch, the second-pole switch and the third-pole switch are all provided with the first wiring terminal and the second wiring terminal.

116. An electrical switch according to claim 115, wherein: The first terminals and / or second terminals of the first pole switch, the second pole switch and the third pole switch are staggered left and right and insulated from top to bottom, and a second through hole is provided on the insulating shell of the first pole switch on which the first terminal and / or second terminal arranged on the second pole switch overlap upward.

117. The electrical switch of claim 110, wherein: The first terminals and / or second terminals of the first pole switch, the second pole switch, and the third pole switch are staggered left and right along the switch width direction of the Y axis and are distributed and insulated up and down along the switch height direction of the Z axis. A third through hole is provided on the insulating housing of the switch on which the first terminal and / or second terminal arranged on the third pole switch is overlapped upward.

118. The electrical switch of claim 111, wherein: When the switch is a four-pole switch, it includes a first pole switch, a second pole switch, a third pole switch and a fourth pole switch, and the first pole switch, the second pole switch, the third pole switch and the fourth pole switch are all provided with the first terminal and the second terminal.

119. The electrical switch of claim 118, wherein: The fourth pole switch is arranged below the third pole switch, and the first terminal and / or the second terminal of the fourth pole switch are staggered and non-coaxially arranged or coaxially arranged with the first terminal and / or the second terminal of the first pole switch, the second pole switch, and the third pole switch.

120. The electrical switch of claim 118, wherein: When the first terminal and / or the second terminal of the fourth pole switch are coaxially arranged with the first terminal and / or the second terminal of the first pole switch, the second pole switch or the third pole switch, some parts of the wiring device on the first terminal and / or the second terminal of the first pole switch, the second pole switch or the third pole switch are detachable.

121. The electrical switch of claim 1, wherein: The screw crimping device at least comprises a screw, a wiring board and / or a nut, and the screw pressing direction is arranged along the length direction of the switch.

122. The electrical switch of claim 1, wherein: The lifting device at least comprises screws, a wiring board and / or a wiring frame, and the pressing direction of the wiring screws forms an angle of 1 to 60 degrees with the height direction of the switch.

123. The electrical switch of claim 1, wherein: The pressure plate device at least includes screws, wiring boards, pressure plates and / or spring washers or flat washers or nuts. When the screws are tightened, the external conductive bar arranged between the wiring board and the pressure plate is stressed and tightened.

124. The electrical switch of claim 123, wherein: The wiring board is provided with threaded holes or through holes and nuts matching the screws.

125. The electrical switch of claim 123, wherein: The pressure plate is L-shaped, and a through hole through which the screw can pass is provided in the middle position of the pressure plate. The right-angle end of the pressure plate is away from the external conductive bar, and the straight surface end of the pressure plate is crimped onto the external conductive bar, and the straight surface end is provided with a protrusion, and the distance between the protrusion and the through hole is smaller than the distance between the right-angle end and the through hole.

126. The electrical switch of claim 1, wherein: When the central axis or center axis of the first terminal or the second terminal arranged vertically in different phases and poles is coaxially arranged, the first terminal or the second terminal is provided with the pulling device, and the pulling device at least includes a screw, a terminal board, a terminal frame and / or an inter-pole linkage insulating member and / or an anti-loosening spring.

127. An electrical switch according to claim 126, wherein: The wiring board and the wiring frame are provided with through holes, the wiring board is arranged in the wiring frame, and the inter-pole linkage insulating member and the anti-loosening spring are coaxially arranged with the through holes.

128. An electrical switch according to claim 126 or 127, wherein: The screws, the wiring frame, the wiring board, the anti-loosening spring, and the inter-pole linkage insulating member are sequentially overlapped and arranged in the Z-axis direction, and are repeatedly stacked according to the number of phases and poles.

129. The electrical switch of claim 126, wherein: One of the screw and the inter-pole linkage insulating member is provided with a fixing shaft, and the other is provided with a fixing hole. The fixing shaft is a square shaft or a polygonal shaft, and the fixing hole is a square hole or a polygonal hole.

130. The electrical switch of claim 1, wherein: The plurality of moving contacts are hinged on the contact support and are arranged coaxially or non-coaxially with the central axis of the contact support.

131. The electrical switch of claim 1, wherein: The moving contact and the stationary contact are arranged opposite to each other along the switch length direction of the X-axis.

132. The electrical switch of claim 131, wherein: The moving contact and the stationary contact form an angle a in the XY plane. When the moving contact approaches the stationary contact, the angle a gradually decreases, and when the moving contact moves away from the stationary contact, the angle a gradually increases.

133. The electrical switch of claim 1, wherein: The contact mode between the moving contact and the stationary contact is plane pressure contact or clamping contact.

134. An electrical switch according to claim 133, wherein: The moving contact or the stationary contact is a clamp, and the moving contact and the contact support move under the direct or indirect action of the control mechanism, so that the moving contact and the stationary contact are electrically contacted and separated.

135. The electrical switch of claim 1, wherein: A soft wire or a movable contact hard conductor is connected between the moving contact and the first wiring terminal.

136. The electrical switch of claim 135, wherein: One end of the moving contact is arranged as a plane and is movably connected to a hard conductor arranged on the plane, a hole of a moving fulcrum is arranged on the plane, and the other end is arranged with an alloy contact.

137. The electrical switch of claim 135, wherein: The moving contact is in an angular shape, a hole or a protrusion serving as a moving fulcrum is arranged at the corner of the angular shape, an alloy contact is arranged at the end of one arm of the angular shape, and a soft wire is connected to the end of the other arm.

138. The electrical switch of claim 135, wherein: The moving contact is in the shape of a strip, a hole or a protrusion serving as a moving fulcrum is arranged in the middle of the strip, an alloy contact is arranged on one end of the strip, and a soft wire is connected to the other end.

139. The electrical switch of claim 1, wherein: The moving contact is arranged in a horizontal axial direction.

140. The electrical switch of claim 1, wherein: During the switch opening process, the moving contact moves from the first terminal to the second terminal.

141. The electrical switch of claim 1, wherein: An insulating shell is arranged between the moving contact and the first terminal, and the insulating shell there is arranged in a sealed state.

142. The electrical switch of claim 1, wherein: The pressing plate device or the screw crimping device is provided with a conductor, and the conductor is partially flexible or has a longitudinal and / or lateral local sunken shape.

143. The electrical switch of claim 1, wherein: An arc outlet is provided at the end of the insulating shell of the second terminal.

144. A power distribution system, wherein: It comprises a plurality of groups of conductive bars and at least one electric switch as claimed in any one of claims 1 to 143, wherein a plurality of first terminals of the at least one electric switch are directly or indirectly connected to the plurality of groups of conductive bars.

145. The power distribution system of claim 144, wherein: The multiple groups of conductive bars are arranged in a horizontal or vertical direction, and the electrical switches are arranged along the horizontal or vertical direction following the multiple groups of conductive bars.

146. The power distribution system of claim 145, wherein: The conductive row is in the shape of a flat straight strip, or a hole, an opening, a groove or a protrusion is provided on one side of the conductive row.

147. The power distribution system of claim 146, wherein: When the conductive bar is in the shape of a flat straight strip, any one side of the conductive bar is directly or indirectly fixedly connected to the first terminal of the electrical switch; when a hole, opening, groove or protrusion is provided on one side of the conductive bar, the side on which the hole, opening, groove or protrusion is provided is directly or indirectly fixedly connected to the first terminal of the electrical switch.

148. The power distribution system of claim 144, wherein: The conductor of the first terminal protrudes out of or is shorter than the insulating housing of the switch.

149. The power distribution system of claim 144, wherein: The plurality of groups of conductive bars are composed of at least one or two conductive bars.

150. The power distribution system of claim 144 or 149, wherein: A spacing is provided between the conductive bars that form a group of two conductive bars, and the plurality of first wiring terminals are inserted into the spacing to be electrically connected to the conductive bars respectively.

151. The power distribution system of claim 144 or 149, wherein: The first wiring terminal is provided with a clamping device connected and fixed to the plane end of the conductive bar.

152. The power distribution system of claim 144 or 149, wherein: The first terminal is provided with a screw clamping device which is directly connected and fixed to the hole, opening or plane of the conductive row through screws and / or conductive connecting strips.

153. The power distribution system of claim 144 or 149, wherein: The plurality of conductive rows extend into the insulating housing of the electrical switch and are adjacent to or arranged on the first wiring terminal and fixed by crimping with a crimping member.

154. The power distribution system of claim 144 or 149, wherein: The first terminal is provided with a lifting device which tightens the gap between the terminal block and the terminal frame through the screw and the thread of the terminal frame, so that the conductive bar inserted into the gap is pressed and fixed to the terminal block.

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