Power switch and power distribution system

Abstract

The invention provides an electric switch and a power distribution system, the switch comprises an insulating shell and an internal element, the insulating shell comprises a first cavity and a second cavity for accommodating a switch system, and the wiring ends of the switch are respectively arranged at the two ends of the second cavity; the first cavity and the plurality of second cavities are stacked up and down; the wiring devices of the wiring ends are coaxially or non-coaxially arranged on the central axes or central axes of different phases or poles which are arranged up and down; the moving contact is driven by the control mechanism to rotate or / and move. The moving contact of the switch and the electric arc move towards the direction opposite to the busbar, so that flashover cannot be generated on the busbar to cause secondary short circuit between the busbars to cause equipment and personal safety accidents; the moving contact and the static contact are arranged in a horizontal movement mode and are combined with the phases and the poles in an up-and-down lamination mode, so that the width of the switch is greatly shortened, the number of switches which are arranged side by side in a power distribution cabinet is increased by more than 40%, branch copper conductors can be saved, copper materials are saved by more than 30%, and very beneficial contributions are brought to economy and society.

Description

Technical Field

[0001] The invention relates to the field of low-voltage electrical appliances, and in particular to an electrical switch and a power distribution system. Background Art

[0002] The arc channel outlet of existing switch electrical appliances is generally set above the power incoming terminal. The arc channel inside the switch is relatively short. Under high voltage and high breaking conditions, a huge arc will be generated, which can easily 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 existing solution generally adds 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 photovoltaics, wind power, and energy storage, it is easy to age and crack. The arc will spray outward from the crack, which can easily cause an explosion accident, causing very serious harm to people and equipment.

[0003] Switchgear is generally used in power distribution cabinets. Its main function is to distribute electric energy. With the development of science and technology, the system capacity of power distribution cabinets is constantly increasing. Therefore, the number of switches used for power distribution in the cabinet is increasing. Figure 1 A schematic diagram 100' of a multi-pole switch device according to the prior art is shown. Figure 1 As shown, the length, width and height of the multi-pole switch device 100' are arranged along the X, Y and Z directions respectively, and the inlet terminal 10' and the outlet terminal 20' are arranged flat along the width (Y) direction of the switch device 100'. In practical applications, Figure 2 As shown, the switch device 100' is usually installed in parallel 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. In order to facilitate installation and transportation, the width of the existing distribution cabinet is generally set uniformly according to the standard. The width of the existing switch device is relatively large, and the number of switches that can be installed side by side in a limited width space is relatively small. When more switches need to be installed, they need to be installed in the distribution cabinet in multiple layers, which leads to an increase in the height size of the distribution cabinet. In addition, since the incoming line end 10' of the existing switch device 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 the transfer copper bus to connect with the conductive bus in an upper and lower staggered manner. In this way, the connection between the transfer copper bus and the conductive bus in the distribution cabinet becomes complicated, the installation is particularly inconvenient, and the amount of copper bus is particularly large, which is not conducive to reducing the overall cost of the distribution cabinet. At the same time, the transfer copper bus is interspersed between different phase poles. Once the insulation is aged or damaged, it is easy to cause phase-to-phase breakdown short circuit, causing serious safety accidents.

[0004] In switchgear, contact spacing is an extremely important technical parameter, which plays a decisive role in the dielectric properties and breaking capacity of the switchgear. In the existing switch electrical appliances, the contact opening distance is generally achieved by the moving contact making linear or rotational movements. The contact opening distance can be increased by lengthening the moving contact length or the rotation angle. The larger the contact opening distance is, the more favorable it is for high voltage and high breaking, but it is not conducive to the miniaturization of the switch electrical appliances. The switch electrical appliances in the prior art 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 the arc generated in the system of up to DC2000V and AC1500V in the new power. Fuses are often required to be used as a substitute, resulting in problems such as temperature rise, large size, and high cost, which restricts the development of switch electrical appliances for breaking high voltage and high short-circuit current. How to realize the switch electrical appliances to reliably and safely break the extremely large short-circuit current 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.

[0005] The operating handles of existing switches are mostly for up and down push and pull movements, which is inconsistent with the rotational movement in the complete cabinet. A conversion mechanism must be added to achieve this, which increases the mechanical structure and causes waste.

[0006] If the existing switch is to be electrically operated, it is necessary to set up another set of electric operating mechanism outside the operating mechanism of the switch, which causes problems such as large size and high cost.

[0007] 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 switching technology with higher movement speeds to meet the many stringent requirements of new power systems for switching electrical appliances such as miniaturization, high voltage, high breaking, and zero arcing. Summary of the invention

[0008] Based on the above background, by stacking the poles or phases of the switch up and down, and arranging the terminals at both ends of the poles or phases of the switch up and down with the same axis or different axes, 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, and the number of switches arranged in the distribution cabinet is increased. At the same time, the reverse tunnel arc extinguishing technology is used to achieve the 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, and better meet the requirements of the new power system for miniaturization, high voltage, high breaking, zero arcing and other switching electrical appliances.

[0009] On the one hand, the present application discloses an electric switch, comprising an insulating shell and internal components, wherein the internal components at least include a moving contact, a contact support, a static contact, a control mechanism, a first terminal, and a second terminal, wherein the insulating shell includes 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 two ends of the second cavity; the first cavity and a plurality of second cavities are arranged in an up-down stack, and the first cavity is arranged above the plurality of second cavities; the static contact is directly or indirectly connected to the first terminal or / and the second terminal; the first terminal or / and the second terminal is provided with a clamping device or a pressure plate device or a screw crimping device or a lifting device; the first terminal or the second terminal has a central axis or a central axis arranged up and down in different phases or poles and is coaxially arranged or non-coaxially arranged; the moving contact is arranged on the contact support and moves together, and the contact support is directly or indirectly driven by the control mechanism to rotate or / and move, driving the moving contact and the static contact to connect or disconnect electricity.

[0010] In this way, the multiple phase poles of the electric switch are stacked in the direction of the switch height, which can greatly reduce the width compared to the original multi-pole switch. More switches can be installed side by side in the same width distribution box, which greatly saves the space of the distribution cabinet. The wiring terminals can adopt different wiring structures, and the central axis of the upper and lower arranged wiring terminals can be coaxial or non-coaxial. The wiring methods are diverse, and the amount of transfer copper busbars in the distribution cabinet can be greatly saved, which greatly improves the efficiency of manual installation, reduces labor hours, and reduces the cost of the distribution cabinet.

[0011] In some embodiments, 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.

[0012] In some embodiments, 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.

[0013] In some embodiments, the minimum width of the electrical switch is the sum of the diameters of the two terminal clamping screws.

[0014] In the above embodiment, multiple phase poles of the long strip switch are stacked along the height direction of the switch. Compared with the original multi-pole switch, the width is narrower. More switches can be installed side by side in the distribution box of the same width, which can greatly save the space of the distribution cabinet and improve the space utilization rate in the distribution cabinet.

[0015] In some embodiments, the first terminal and / or the second terminal can be arbitrarily combined with the clamping device, the pressure plate device, the screw crimping device, and the lifting device arranged up and down in different phases and poles.

[0016] In the above embodiments, the wiring device of the first terminal and / or the second terminal can be realized by different combinations and various forms, all of which can realize the connection and fixation of the electrical switch and the external conductive bar.

[0017] In some embodiments, 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.

[0018] In the above embodiment, the control mechanism drives the contact support to rotate, thereby driving the moving contact to rotate, thereby connecting or disconnecting with the static contact, and the structure is simple and reliable.

[0019] In some embodiments, 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.

[0020] In the above embodiment, the contact support is driven to move by the control mechanism, thereby driving the moving contact to move to achieve connection or disconnection with the static contact, and the structure is simple and reliable.

[0021] In some embodiments, 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.

[0022] In the above embodiment, the moving contact performs a combined motion of movement and rotation, so as to achieve a larger contact opening distance in a smaller space, thereby meeting the requirements of the new power system for miniaturization, high voltage and high breaking of switchgear.

[0023] In some embodiments, the control mechanism is provided with a driving part that directly or indirectly drives the end or side movement of the contact support, 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.

[0024] In the above embodiment, a driving part for driving the contact support is provided on the control mechanism, and the driving part can drive the end or side of the contact support. Different driving part structures can be provided according to different requirements, and the structural design is diversified.

[0025] In some embodiments, the structure of the driving part is cantilever, 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.

[0026] In the above embodiment, the transmission shaft is directly connected to the rotation center of the uppermost contact support, driving the contact support to rotate along the axis, and the transmission shaft is above the contact support away from the static contact and the moving contact, so the insulation performance is good.

[0027] In some embodiments, the structure of the driving part is cantilevered, and the driving part at least includes a transmission shaft and an output rod.

[0028] In some embodiments, the transmission shaft is fixedly connected to the output rod, the multiple contact supports are connected through the transmission shaft, and the output rod moves under the drive of the multi-link mechanism of the control mechanism, transmitting the driving force to the transmission shaft, driving the contact supports to move together, and driving the moving contact to electrically contact or separate with the static contact.

[0029] In the above embodiment, the driving force of the control mechanism is transmitted to the output rod and the transmission shaft, thereby driving the moving contact to move, and the transmission structure is simple and reliable.

[0030] In some embodiments, the structure of the driving part is a lever type, and the driving part at least includes a transmission shaft and a fifth rocker.

[0031] In some embodiments, the multi-link mechanism of the control mechanism is disposed in the first cavity.

[0032] In some embodiments, the transmission shaft is connected to the multi-link mechanism via a fifth rocker arm, and performs rotational motion under the drive of the multi-link mechanism.

[0033] In some embodiments, 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 female and male structures with torque transmission.

[0034] In some embodiments, there are two transmission shafts, one of which passes through the first cavity and multiple second cavities to be connected to the multiple contact supports, and the other passes through the first cavity and the first second cavity to be connected to the contact support in the second or third second cavity.

[0035] In some embodiments, the fifth swing arm is driven by the multi-link mechanism to swing so that the transmission shaft performs rotational motion to drive the contact support to perform rotational motion, so that the moving contact and the static contact can achieve electrical connection and disconnection.

[0036] In the above 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. In this way, the moving contact of the three-pole switch is more evenly stressed, the transmission is more reliable, and the stability is high.

[0037] In some embodiments, 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 to 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.

[0038] In the above embodiment, the contact support is connected to the control mechanism through the transmission shaft, 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.

[0039] In some embodiments, 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.

[0040] In some embodiments, the multi-link mechanism of the control mechanism is disposed in the first cavity.

[0041] In some embodiments, 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.

[0042] In some embodiments, the transmission shaft is connected to the control mechanism via the first rocker rod and performs rotational motion under the drive of the control mechanism.

[0043] In some embodiments, the transmission shaft is connected to one end of the second rocker arm, the other end of the second rocker arm is connected to the linkage rod, the linkage rod is connected to the contact support through the third rocker arm, and when the transmission shaft rotates, the rotational motion is transmitted to the contact support through the linkage rod, so that the moving contact and the static contact can be electrically connected and disconnected.

[0044] In the above embodiment, the swing force is converted into rotational torque by a rocker rod, and the torque is transmitted to the contact support through shaft transmission, which has the effect of uniform force, especially when multiple groups of contact supports are arranged in a superimposed manner, effectively solving the problems of asynchronous movement and yaw of the upper and lower moving contacts. By adjusting the length of the three rocker rods, they can be adjusted to each other according to the torque and angle requirements of the rotation, so as to achieve a larger rotation angle or a larger torque.

[0045] In some embodiments, 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.

[0046] In some embodiments, the multi-link mechanism of the control mechanism is disposed in the first cavity.

[0047] In some embodiments, 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.

[0048] In some embodiments, the rotation center of the contact support is eccentric to the rotation center of the movable contact relative to the contact support.

[0049] In some embodiments, the transmission shaft is inserted from the first cavity into the second cavity, passes through the rotation center of the contact support, and the transmission shaft is coaxially arranged with the rotation center of the contact support.

[0050] In some embodiments, the transmission shaft and the contact support are fixedly connected and cannot rotate relative to each other.

[0051] In some embodiments, 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.

[0052] In some embodiments, the fourth swing rod is driven by the control mechanism to swing so that the transmission shaft performs rotational motion to drive the contact support to perform rotational motion, so that the moving contact and the static contact can achieve electrical connection and disconnection.

[0053] In the above embodiment, the rotation center of the contact support is eccentrically set to increase the distance between the rotation center and the alloy contact, thereby effectively increasing the opening distance of the moving contact. The swing force is converted into a rotation force through the cooperation of the fourth swing rod and the rotating shaft, and the contact support is driven in the form of a rotation drive, which has the effects of smooth movement and high operating bearing capacity, and can effectively solve the deflection problem caused by the control mechanism driving on one side. The length of the fourth swing rod and the distance between the rotation center of the contact support and the alloy contact of the moving contact can be adjusted to each other according to the torque and angle requirements of the rotation, so as to achieve a larger rotation angle or a larger torque, and can better achieve a large opening distance to increase the rated voltage level.

[0054] In some embodiments, 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.

[0055] In some embodiments, the multi-link mechanism also includes a first link, a second link, a third link, a fourth link, a fixed plate and a jump rod. The first link, the second link, the third link, the fourth link, the fifth link, the fixed plate and the jump 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 a 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.

[0056] In some embodiments, 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.

[0057] In the above embodiment, by adding a four-link structure and adjusting the lever ratio of the multi-link mechanism, the contact support angle is enlarged when opening and closing the switch, thereby increasing the angle between the moving contact and the static contact. The switch can achieve a large contact opening distance and can better meet the high voltage, high breaking and zero arcing requirements of the new power system for switching electrical appliances.

[0058] In some embodiments, the driving structure is a lever type, and the driving part includes an output rod, a transmission shaft, a first rod and a second rod.

[0059] In some embodiments, 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, and 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, and 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.

[0060] In some embodiments, a guide hole for movement of the second rod is provided on the insulating member of the insulating housing.

[0061] In some embodiments, the multi-link mechanism of the control mechanism is disposed in the first cavity.

[0062] In some embodiments, 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 axis on the side panel of the control mechanism. A waist hole is provided at the end of the output rod, and the transmission shaft can slide in the waist hole.

[0063] In some embodiments, 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.

[0064] In some embodiments, at least one gear is disposed on the rotation axis of the contact support or connecting shaft, and at least one rack is disposed opposite 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.

[0065] In some embodiments, when the contact support moves along the slide groove, the gear on the contact support will rotate along itself due to the torsional torque of the rack, thereby driving the moving contact to perform a combined motion of movement and rotation to electrically connect or disconnect with the static contact.

[0066] In the above embodiment, the multi-link mechanism is indirectly connected to the side of the contact support 21 of the middle pole through the driving part, thereby improving the stability of motion transmission.

[0067] In some embodiments, the structure of the driving part is a lever type, and the driving part includes an output rod, a third rod, and a transmission shaft.

[0068] In some embodiments, 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 topmost 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.

[0069] In some embodiments, 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 axis on the side panel 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.

[0070] In some embodiments, the structure of the driving part is a lever type, and the driving part includes an output rod, a third rod, a transmission shaft, a first rod and a second connecting rod.

[0071] In some embodiments, 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.

[0072] In the above embodiment, the multi-link mechanism is indirectly connected to the side of the contact support 21 of the middle pole through the driving part, thereby improving the stability of motion transmission.

[0073] In some embodiments, the driving portion includes at least an output rod, a transmission shaft and a connecting shaft, and the connecting shaft is insulated and penetrates into the contact support.

[0074] In the above embodiment, a concentric connecting shaft is installed in the middle of the contact support to enhance the insulation between the levels.

[0075] In some embodiments, 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.

[0076] In the above embodiment, the connecting shafts are connected by non-rotatable female and male structures, which ensures the reliability of insulation between the layers on the one hand and reduces the loss of transmitted torque on the other hand.

[0077] In some embodiments, 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.

[0078] In the above embodiment, the transmission shaft passes through the rotation center of the connecting shaft, and the relatively fixed connection ensures the stability and synchronization of the rotation and reduces the loss of torque.

[0079] In some embodiments, the driving unit is disposed in at least one of the second cavities.

[0080] In the above embodiment, by arranging the driving part in the second cavity, it can be directly connected to the contact support in the second cavity, and the connection is more convenient.

[0081] In some embodiments, at least a portion or all of the driving unit is disposed in the first cavity.

[0082] In the above embodiment, the first cavity is insulated from the second cavity, the control mechanism is isolated from the moving contact and the static contact of the switch, and the operating mechanism is not energized, thereby ensuring operational safety.

[0083] In some embodiments, the driving portion 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, or any combination of the above parts, or a connecting shaft on the contact support.

[0084] In the above embodiment, the driving part is connected to the contact support, and can transmit the driving force of the control mechanism to the contact support to drive the contact support to move.

[0085] In some embodiments, the mechanical structure connection is any one or any combination of the following: connecting rod, shaft, rack, gear.

[0086] In the above embodiments, the mechanical structure connection can achieve higher connection strength, strong bearing capacity, and ensure the reliability of the connection.

[0087] In some embodiments, the control mechanism is a mechanical control mechanism, an electric control mechanism, or an electromagnetic drive control mechanism.

[0088] In some embodiments, the control mechanism is disposed in the first cavity and / or the second cavity.

[0089] In some embodiments, the mechanical control mechanism includes an operating handle, a multi-link mechanism, and a spring.

[0090] In the above embodiment, the control mechanism completes the opening and closing of the switch through manual operation, which is simple and reliable to operate and easy to maintain and repair.

[0091] In some embodiments, the electric control mechanism includes at least a motor, a gear transmission mechanism or a multi-link mechanism and an electronic controller.

[0092] In the above embodiment, the opening and closing operations of the switch can be completed by remote control, thereby improving the operational safety.

[0093] In some embodiments, the electromagnetic drive control mechanism includes at least an electromagnet and a multi-link mechanism.

[0094] In the above embodiment, the electromagnet driving method is adopted, the switch has reliable performance, long service life and fast response speed.

[0095] In some embodiments, the multi-link mechanism is at least a four-link structure.

[0096] In the above embodiments, the planar multi-link mechanism has a simple and light structure, is easy to manufacture, process and maintain, and has reliable and stable movement.

[0097] In some embodiments, 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 provided on the contact support.

[0098] In some embodiments, 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 provided on the insulating housing.

[0099] In some embodiments, the control mechanism directly or indirectly drives the end or side of the contact support to simultaneously move 1 to 50 mm and rotate 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 move forward and backward and rotate.

[0100] In the above embodiment, when the contact support moves, it is driven to rotate back and forth along the switch length direction of the X-axis through a gear rack transmission. The gear rack has a large bearing capacity, stable transmission and high transmission accuracy.

[0101] In some embodiments, 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, and 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.

[0102] In some embodiments, 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, and 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.

[0103] In some embodiments, 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, and the contact support is driven to rotate by a mechanical structure movably connected to a driving portion of the control mechanism.

[0104] In some embodiments, 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 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.

[0105] In some embodiments, 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 shaft or protrusion or arm that is not coaxial with the central axis of the contact support.

[0106] In some embodiments, 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 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.

[0107] In some embodiments, the first cavity and the second cavity are each composed of at least two insulating members.

[0108] In some embodiments, the two insulating members adjacent to the first cavity and the second cavity are an integrated structure.

[0109] In the above embodiment, two insulating members adjacent to the first cavity and the second cavity are integrally formed, thereby eliminating assembly steps, saving time and effort.

[0110] In some embodiments, the first cavity and the second cavity are at least formed by upper and lower insulating parts being spliced ​​together.

[0111] In the above embodiment, the insulating member is formed by splitting and splicing, and the process of making a single insulating member is simple and the mold is easy to form.

[0112] In some embodiments, a slide groove is provided on the insulating member, and the slide groove is arranged along the switch length direction of the X-axis.

[0113] In the above embodiment, the slide groove is arranged along the length direction of the switch, which helps the contact support to move forward and backward along the slide groove, thereby driving the moving contact to move along the length direction of the switch.

[0114] In some embodiments, 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.

[0115] In some embodiments, a circular boss coaxial with the central axis of the contact support is provided at the end of the contact support, a through hole or groove connecting a plurality of the contact supports is provided on the inner side of the circular boss, and the contact support rotates around the axis of the circular boss.

[0116] In some embodiments, a connecting shaft is provided in the through hole or the groove of the contact support, so that a plurality of the contact supports are assembled into one piece along the switch height direction of the Z axis.

[0117] In the above embodiments, the connecting shaft and the through hole or slot of the contact support form a shaft hole match, and multiple contact supports can be connected into one through the connecting shaft. The connection structure is simple and reliable.

[0118] In some embodiments, the contact support provided with a plurality of moving contacts is provided as an integrated arrangement or a split arrangement in which female and male structures having torque transmission are spliced.

[0119] In some embodiments, 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.

[0120] In some embodiments, a bearing is disposed on the circular boss, and the bearing can move and rotate in the slide groove.

[0121] In the above embodiment, by arranging a bearing on the circular boss, the friction force of the contact support during rotation and movement is greatly reduced, thereby preventing the contact support from getting stuck during transmission.

[0122] In some embodiments, 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.

[0123] In the above embodiment, the third slide groove is arranged in parallel with the slide groove, so that the driving part and the contact support move synchronously, ensuring the consistency of the driving part and the contact support action of the control mechanism, and improving the accuracy of the switch operation.

[0124] In some embodiments, the moving contact and the stationary contact are double-breakpoint structures.

[0125] In some embodiments, two stationary contacts are disposed in the second cavity, two contact portions are disposed at both ends of the moving contact, and the contact supports electrically contacting and separating the two contact portions of the moving contact with the two stationary contacts under the direct or indirect action of the control mechanism.

[0126] In the above embodiment, in the double breakpoint structure, the moving contact has a fast opening speed, a higher arc voltage is generated through the two break points, and the current limiting capability is stronger.

[0127] In some embodiments, the insulating shell is buckled on 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 static contact, a contact support, an arc extinguishing chamber, a terminal, and an arc guide plate are provided, and connecting rods are provided between the layers to link the moving contacts between the layers.

[0128] In some embodiments, the second cavity is composed of at least two stacked in the Z-axis direction.

[0129] In some embodiments, arc extinguishing chambers are provided on the outer sides of the two separation tracks of the moving contact and the static contact.

[0130] In the above embodiment, the arc extinguishing chamber is arranged outside the separation track of the moving contact and the static contact, which helps the arc generated during the disconnection process of the moving contact and the static contact to quickly enter the arc extinguishing chamber and extinguish, thereby improving the breaking performance of the product.

[0131] In some embodiments, the arc extinguishing chamber is composed of multiple metal grids insulated from each other and fixed with insulating materials, the first grid corresponds to the arc-starting part of the static contact and the last grid corresponds to the arc guide plate, which electrically connects the arcs generated by the two arc extinguishing chambers.

[0132] In the above embodiment, the arc striking portion and the arc guide plate are provided, which is helpful to introduce the arc into the arc extinguishing chamber and accelerate the extinguishing of the arc.

[0133] In some embodiments, 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.

[0134] In the above embodiment, by arranging the operating handle above the multi-link mechanism and connecting it to the multi-link mechanism, the manual operating handle can drive the multi-link mechanism to move, and the structure is simple.

[0135] In some embodiments, the operating handle is a rotating handle, the center of rotation 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 center of rotation.

[0136] In some embodiments, the rotary handle rotates 70 to 120 degrees clockwise around the center of rotation, from the unlocking or opening position to the closing position.

[0137] In some embodiments, the rotary handle rotates 70 to 120 degrees clockwise around the rotation center from the closing position to the opening position.

[0138] In the above embodiment, the rotary handle adopts a horizontal rotary handle, which is parallel to the top plane of the switch insulating part, thereby increasing the lever arm and reducing the hand force. The human hand can hold the handle tightly to operate, which adapts to the human hand's force method and saves effort in operation. In addition, the handle has a large rotation angle, making it easy to identify the specific opening and closing positions and the tripping position.

[0139] In some embodiments, the operating handle is a push-pull handle, and the push-pull handle moves along the switch length direction of the X-axis.

[0140] In some embodiments, the push-pull handle moves from back to front along the switch length direction of the X-axis, and the electrical switch changes from a unlocking or opening position to a closing position.

[0141] In some embodiments, the push-pull handle moves from front to back along the switch length direction of the X-axis, and the electrical switch moves from a closed position to an open position.

[0142] In the above embodiment, the operation mode of the push-pull handle conforms to the operation habits of existing switches and is convenient for operators to use.

[0143] In some embodiments, the arc extinguishing chamber is a combination of multiple metal sheets separated and insulated.

[0144] In the above embodiment, the arc is cut into a number of short arcs by using metal grids, thereby greatly increasing the arc voltage and accelerating the arc extinction.

[0145] In some embodiments, the arc extinguishing chamber is arranged on the left side of the moving contact and / or the static contact.

[0146] In the above embodiment, the arc extinguishing chamber is placed in front of the moving contact and / or the stationary contact, and the arc generated when the moving contact and the stationary contact are opened can quickly enter the arc extinguishing chamber, thereby accelerating the extinction of the arc.

[0147] In some embodiments, the arc extinguishing chamber is arranged between the first terminal and the second 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.

[0148] In the above embodiment, the arc extinguishing chamber is arranged in the length direction of the switch, and the internal space in the length direction of the switch is fully utilized to increase the number of arc extinguishing grids by more than 60%, which is more conducive to arc extinguishing.

[0149] In some embodiments, a total arc extinguishing chamber or a plurality of sub-arc extinguishing chambers are provided 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.

[0150] In the above embodiment, the splicing of multiple arc extinguishing chambers can achieve the arc extinguishing performance of an integrated arc extinguishing chamber, and at the same time can reduce the difficulty of riveting a single arc extinguishing chamber grid, which is convenient for automated production.

[0151] In some embodiments, 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.

[0152] In the above embodiment, the moving trajectory of the moving contact crosses the vertical center line of the arc extinguishing chamber, which is not only conducive to arc striking, but also can fully utilize the metal grids on both sides of the center line of the arc extinguishing chamber to achieve a better arc extinguishing effect.

[0153] In some embodiments, a gap is provided between the arc extinguishing chamber and the insulating member to form an arc channel, and an outlet of the arc channel is provided on a side that is the same as or opposite to the opening direction of the moving contact.

[0154] In the above embodiment, the length space of the electric switch is used to form a reverse tunnel-type arc channel, so that the remaining short arc after being cut by the arc extinguishing chamber can be driven by the airflow generated by the disconnection to enter the reverse tunnel-type arc channel for complete dissipation and absorption, thereby achieving zero arcing performance under high voltage and high current, and greatly improving the safety and reliability of the switch during use.

[0155] In some embodiments, the internal component further includes an overload release, and the overload release includes at least one of a magnetic short circuit release and a thermal overload release.

[0156] In some embodiments, the overload release is disposed between the first wiring terminal and the second wiring terminal along the switch length direction of the X-axis.

[0157] In some embodiments, the magnetic short circuit releaser and the thermal overload releaser are arranged on the stationary contact.

[0158] In some embodiments, a plurality of the overload releases are stacked along the switch height direction of the Z axis, and the overload releases are connected to a tripping rod, and the tripping rod drives the multi-link mechanism to trip under the drive of the overload releases.

[0159] In the above embodiment, an overload release is provided to cut off the fault current in the line, thereby ensuring the safety of the line and other electrical equipment in the line.

[0160] In some embodiments, the control mechanism side is provided with a shunt release and / or an undervoltage release and / or an alarm switch.

[0161] In the above embodiment, by providing a shunt release, the switch can be remotely controlled to be disconnected; by providing an undervoltage release, when the line voltage is lower than a certain value of the rated voltage, the switch is prompted to be disconnected to ensure that it will not be mistakenly closed, thereby ensuring the safety of the line load; by providing an alarm switch, the alarm switch is activated when the electric switch trips due to a fault, so it can be determined whether the electric switch trips due to a fault.

[0162] In some embodiments, an auxiliary switch is disposed in the first cavity and / or in the second cavity.

[0163] In the above embodiment, by providing an auxiliary switch, the auxiliary contact and the main contact operate simultaneously to indicate the opening and closing state of the main contact.

[0164] In the above embodiment, the internal components further include a current collector, an electronic controller, and a magnetic flux converter.

[0165] In the above embodiment, the current collector and the magnetic flux converter are electrically connected to the electronic controller respectively.

[0166] In the above embodiment, the electronic controller and the magnetic flux converter are arranged in the first cavity.

[0167] In the above embodiment, the current collector is disposed in the second cavity.

[0168] In the above embodiment, the electronic controller is an independent unit module hung below the electric switch.

[0169] In the above embodiment, by setting the switch as an electronic switch, the electronic circuit breaker has the characteristics of fast response capability, precise protection, efficient power management, remote operation, etc. It can detect faults in the circuit in a short time and quickly disconnect the circuit, effectively avoiding circuit damage and accidents, and can effectively reduce the incidence of circuit accidents and improve the safety performance of the circuit.

[0170] In some embodiments, the internal elements disposed in the plurality of second cavities are stacked to form a bipolar electrical switch, a tripolar electrical switch, or a quadrupole electrical switch.

[0171] In some embodiments, when the switch is a two-pole switch, it includes a first-pole switch and a second-pole switch, and the first-pole switch and the second-pole switch are both provided with the first wiring terminal and the second wiring terminal.

[0172] In some embodiments, 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 insulated and distributed up and down along the switch height direction of the Z axis.

[0173] In the above embodiment, the first connection terminals and / or the second connection terminals of the first pole switch and the second pole switch can be completely staggered by stacking in the height direction and staggering in the width direction, which makes installation and wiring more convenient.

[0174] In some embodiments, the first connection terminal and / or the second connection terminal 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.

[0175] In some embodiments, 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 terminal and the second terminal.

[0176] In some embodiments, 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 overlaps upward.

[0177] In some embodiments, the first terminals and / or the 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 insulated and distributed up and down along the switch height direction of the Z axis, and a third through hole is provided on the insulating housing of the switch on which the first terminal and / or the second terminal arranged on the third pole switch is overlapped upward.

[0178] In the above embodiment, the first connection terminals and / or the second connection terminals of the first pole switch, the second pole switch and the third pole switch can be completely staggered by stacking in the height direction and staggering in the width direction. This makes installation and wiring more convenient and can be better used in two-phase AC systems or high-voltage DC systems.

[0179] In some embodiments, 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.

[0180] In some embodiments, 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 left and right with the first terminal and / or the second terminal of the first pole switch, the second pole switch, and the third pole switch, and are arranged non-coaxially or coaxially.

[0181] In the above embodiment, the first terminals and / or the second terminals of the first pole switch, the second pole switch, the third pole switch and the fourth pole switch can be completely staggered by stacking in the height direction and staggering in the width direction, which makes installation and wiring more convenient.

[0182] In some embodiments, 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 or 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 or the second pole switch or the third pole switch are detachable.

[0183] In the above embodiment, by setting some parts of the wiring device on the first terminal and / or the second terminal of the first pole switch or the second pole switch or the third pole switch as a detachable structure, convenient installation of the four-pole electrical switch is achieved, and more phases and poles can be set without increasing the width of the electrical switch, effectively saving installation space and cost.

[0184] In the above embodiment, by setting some parts of the wiring device to be detachable, the fourth pole switch can be coaxially arranged with the first pole switch, the second pole switch or the third pole switch, the first terminal and / or the second terminal, so as to further reduce the switch width.

[0185] In some embodiments, the screw crimping device includes at least a screw, a terminal block and / or a nut, and the screw pressing direction is set along the length direction of the switch.

[0186] In the above embodiment, after the screws are tightened, a crimping force is formed between the conductive bus and the terminal block, so that electrical contact is achieved between the terminal block and the conductive bus. When disassembling, the screws are loosened, and the electrical switch as a whole slides along the Z-axis direction of the slotting direction, so that the single switch can be disassembled and maintained without changing the position of the conductive bus. In this way, conductors are saved, the switch layout is simplified, the installation is convenient, the electrical contact is reliable, and single maintenance or replacement is convenient.

[0187] In some embodiments, the lifting device includes at least a screw, a wiring board and / or a wiring frame, and the tightening direction of the wiring screw forms an angle of 1 to 60 degrees with the height direction of the switch.

[0188] In the above embodiment, this type of inclined layout terminal saves space compared to the conventional stepped staggered layout terminal, and the wiring method is also convenient and flexible, which can adapt to the installation of conductive bars, wires or UT terminals.

[0189] In some embodiments, the pressure plate device includes at least screws, terminal blocks, pressure plates and / or spring washers or flat washers or nuts. When the screws are tightened, the external conductive bus disposed between the terminal block and the pressure plate is stressed and tightened.

[0190] In some embodiments, the wiring board is provided with threaded holes or through holes and nuts matching the screws.

[0191] In some embodiments, 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, the straight surface end of the pressure plate is crimped on 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.

[0192] In the above embodiment, the pressure plate device is arranged in this way, which can save the amount of busbars when multiple switches are placed side by side for busbar wiring installation, eliminate the need for overlapping and bending operations, and further simplify the shape of the busbar to save costs and improve efficiency.

[0193] In some embodiments, when the central axis or center axis of the first terminal or the second terminal in different phases and poles arranged vertically 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, an inter-pole linkage insulating member, and an anti-loosening spring.

[0194] In some embodiments, 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 arranged coaxially with the through holes.

[0195] In some embodiments, the screws, wiring frames, wiring boards, anti-loosening springs, and inter-pole linkage insulating parts are arranged in overlapping order in the Z-axis direction and are repeatedly stacked according to the number of phases and poles.

[0196] In some embodiments, 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.

[0197] In the above embodiment, the adopted pulling device wiring structure can prevent the electric switch from loosening and failing when subjected to vibration caused by external force, thereby greatly improving the safety of wiring installation and the reliability of long-term operation.

[0198] In some embodiments, 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.

[0199] In the above embodiment, the moving contact is hinged on the contact support through an axis through a hole, and the moving contact is crimped together with the contact support through an elastic member and moves with the contact support. When an external force acts on the moving contact, the moving contact overcomes the pressure provided by the elastic member and rotates at a certain angle relative to the contact support, thereby ensuring that there is sufficient overtravel and contact pressure when the moving contact contacts the static contact.

[0200] In some embodiments, the moving contact and the stationary contact are arranged opposite to each other along the switch length direction of the X-axis.

[0201] In the above embodiment, by arranging the moving contact and the stationary contact opposite to each other, a certain contact distance is formed between the two, which helps to improve the breaking capacity of the switch.

[0202] In some embodiments, the moving contact and the stationary contact form an angle a in the XY plane, and 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.

[0203] In the above embodiment, when the multi-link mechanism drives the contact support and then drives the moving contact to approach the stationary contact, the angle a will gradually decrease. When the angle approaches 0°, the moving contact contacts the stationary contact. When the multi-link mechanism drives the contact support and then drives the moving contact away from the stationary contact, the angle a will gradually increase. When the angle approaches 130°, the moving contact is farthest from the stationary contact, reaching the contact opening position.

[0204] In some embodiments, the contact mode between the moving contact and the stationary contact is planar pressure contact or clamping contact.

[0205] In some embodiments, 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.

[0206] In the above embodiment, when the clamp-type contact allows a large current to pass through, the same-direction current flowing through the moving contact will generate an electric suction force that is tightened by the two stationary contacts, greatly increasing the contact pressure between the moving contact and the stationary contact, and preventing the moving contact and the stationary contact from being repelled.

[0207] In some embodiments, a soft wire or a movable contact hard conductor is connected between the moving contact and the first terminal.

[0208] In some embodiments, one end of the moving contact is set as a plane and movably connected to a hard conductor set with a plane, a hole with a moving fulcrum is set on the plane, and the other end is set with an alloy contact.

[0209] In the above embodiment, the process of connecting the movable contact hard conductor and the moving contact is simple, which reduces the cost.

[0210] In some embodiments, the moving contact is in an angular shape, a hole or a protrusion serving as a moving fulcrum is provided at the corner of the angular shape, an alloy contact is provided at the end of one arm of the angular shape, and a soft wire is connected to the end of the other arm.

[0211] In some embodiments, the moving contact is in the shape of a strip, a hole or a protrusion serving as a moving fulcrum is provided in the middle portion of the strip, an alloy contact is provided on one end of the strip, and a soft wire is connected to the other end.

[0212] In some embodiments, the moving contact is arranged in a horizontal axial direction.

[0213] In some embodiments, during the switch opening process, the moving contact moves from the first terminal to the second terminal.

[0214] In some embodiments, an insulating shell is provided between the moving contact and the first terminal, and the insulating shell there is provided in a sealed state.

[0215] In the above embodiment, by providing a closed insulating shell, arc flashover will not be ejected in the direction of the conductive bar at the incoming line end, thereby avoiding arc shorting between the conductive bars and improving the safety of switch operation.

[0216] In some embodiments, a conductor is disposed on the pressing plate device or the screw crimping device, and the conductor is partially flexible or has a longitudinal and / or transverse local depression.

[0217] In the above embodiment, the conductor having a partially sunken shape is beneficial to increasing the contact area between the conductor and the conductive bar after crimping, thereby improving the contact reliability.

[0218] In some embodiments, an arc outlet is provided at the end of the insulating shell of the second terminal.

[0219] In the above embodiment, by providing an arc gas outlet, the high-temperature gas generated by the moving and static contacts during the disconnection process is discharged from the gas outlet as quickly as possible, thereby driving the arc to quickly enter the arc extinguishing chamber and extinguish, thereby ensuring the safety of the line.

[0220] On the other hand, the present application further discloses a power distribution system, comprising a plurality of conductive bars and at least one of the electrical switches, wherein a plurality of first terminals of the at least one electrical switch are directly or indirectly connected to the plurality of conductive bars.

[0221] In some embodiments, the plurality of 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 plurality of groups of conductive bars.

[0222] In the above embodiment, the conductive drainage is connected to multiple first terminals of the electric switch in a horizontal or vertical house arrangement, which can greatly save the use of transfer copper bars in the distribution cabinet and reduce the cost of the overall distribution cabinet; at the same time, it is convenient to connect the electric switch and the conductive bar, which can greatly reduce the man-hours for installing the distribution cabinet, thereby reducing the overall cost of the distribution cabinet.

[0223] In some embodiments, 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.

[0224] In some embodiments, when the conductive bar is in the shape of a flat straight strip, any side of the conductive bar is directly or indirectly fixedly connected to the first terminal of the electrical switch, and 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.

[0225] In some embodiments, the conductor of the first terminal extends out of or is shorter than an insulating housing of the switch.

[0226] In some embodiments, the plurality of groups of conductive bars consist of at least one or two conductive bars.

[0227] In some embodiments, 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.

[0228] In the above embodiment, a spacing is provided between the conductive bars of a group, which can ensure that the switch has a certain electrical gap, can effectively reduce the occurrence of conductive crossover phenomenon, and improve the reliability and stability of the circuit.

[0229] In some embodiments, the first terminal is provided with a clamp device connected and fixed to the planar end of the conductive bar.

[0230] In the above embodiment, the clamp device is used to connect with the conductive bar, which makes installation and wiring more convenient, eliminates the cumbersome screw connection, and greatly improves the installation and wiring efficiency.

[0231] In some embodiments, the first terminal is provided with a screw clamping device to be directly connected and fixed to the hole, opening or plane of the conductive row through screws and / or conductive connecting strips.

[0232] In the above embodiment, by providing a screw crimping device, a crimping force is formed between the conductive bus and the terminal block after the screws are tightened, so that electrical contact is achieved between the terminal block and the conductive bus. When disassembling, the screws are loosened, and the electrical switch as a whole slides along the Z-axis direction of the slotting direction, so that a single switch can be disassembled and maintained without changing the position of the conductive bus. In this way, conductors are saved, the switch layout is simplified, installation is convenient, electrical contact is reliable, and single maintenance or replacement is convenient.

[0233] In some embodiments, the plurality of conductive rows extend into the insulating housing of the electrical switch and are adjacent to or disposed on the first terminal and fixed by crimping with a crimping member.

[0234] In the above embodiment, the first terminal is connected to the conductive bar through a pressing plate device. The pressing plate connection method is simple and reliable and easy to disassemble and maintain.

[0235] In some embodiments, the first terminal is provided with a lifting device which tightens the gap between the terminal block and the terminal frame by means of screws cooperating with the thread of the terminal frame, so that the conductive bar inserted into the gap is pressed and fixed to the terminal block.

[0236] In the above embodiment, this type of inclined layout terminal saves space compared to the conventional stepped staggered layout terminal, and the wiring method is also convenient and flexible, which can adapt to the installation of conductive bars, wires or UT terminals.

[0237] The beneficial effects of the present invention are:

[0238] 1. The present invention utilizes the length space of the switch to form a reverse tunnel type arc channel, so that the remaining short arc after being cut by the arc extinguishing chamber can enter the reverse tunnel type arc channel driven by the airflow generated by the disconnection, so that the remaining short arc can be 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 backwards, and will not cause secondary short circuit hazards to the conductive bars of different phase poles on the front terminal, thereby greatly improving the safety and reliability of the switch during use.

[0239] 2. The present invention arranges an arc extinguishing chamber on the reverse tunnel type arc channel, and makes full use of the length direction of the switch to arrange more arc extinguishing grids, so that the number of arc extinguishing grids is increased by more than 60%. The arc extinguishing grids are made of metal grids, which cut the arc into a number of short arcs. The near-cathode effect of the AC arc and the near-pole voltage drop of the DC arc are used to increase the arc voltage to reduce the fault current, thereby accelerating the arc extinction. It has a strong current limiting ability and can disconnect higher voltages and larger currents.

[0240] 3. The zero arcing performance of the electric switch of the present invention under high voltage and large current can reduce the safety distance between the multi-pole electric switch and other conductive parts in the distribution cabinet, solving the problem that the existing multi-pole electric switch has a long arcing distance and is installed in the distribution cabinet at a large safety distance, resulting in waste of space and conductive bars in the distribution cabinet.

[0241] 4. The mechanism of the electric switch of the present invention 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 prior art. By utilizing these technologies, the switch of the present invention can be greatly reduced in width compared with the original multi-pole switch. More multi-pole electric switches of the present invention can be installed side by side in a distribution cabinet of the same width, which can greatly save the space of the distribution cabinet and improve the space utilization rate in the distribution cabinet.

[0242] 5. The inlet and outlet terminals of the electric switch of the present invention are stacked in height direction at the same height as the conductive bar stacking in the distribution cabinet. The switch terminals can be directly connected to the conductive bar, eliminating the transfer copper bar used to connect the original distribution cabinet and the switch, thereby reducing the cost of the overall distribution cabinet by more than 30%.

[0243] 6. The electric switch of the present invention is easy to install in the cabinet and connect with the conductive bar in the cabinet, which can greatly reduce the man-hours for cabinet installation, thereby reducing the overall cost of the distribution cabinet.

[0244] 7. The operating handle of the electric switch of the present invention can be directly set as a rotating handle. The rotating handle adopts a horizontal rotating handle, which is parallel to the top plane of the switch insulating part, increases the force arm, reduces the hand force, and the human hand can hold the handle tightly to operate. It not only adapts to the human hand's force mode and saves effort in operation, but also the rotating handle can be rotated at a large angle, which is easy to identify the specific opening and closing position and tripping position of the switch.

[0245] 8. The electric switch of the present invention 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

[0246] In order to more clearly illustrate the implementation methods of the present application or the technical solutions in the prior art, the drawings required for use in the implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some implementation methods recorded in this application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0247] Figure 1 It is a structural schematic diagram of a switch device 100' in the prior art; Figure 2 It is a schematic diagram of the internal structure of a switch device 100' in the prior art; Figure 3 It is a schematic diagram of a switch device 100' of the prior art installed side by side in a power distribution cabinet; Figure 4 It is a three-dimensional schematic diagram of the three-pole switch disclosed in the first embodiment; Figure 5 for Figure 4 Exploded diagram of the three-pole switch; Figure 6 for Figure 4 Schematic diagram of the structure of the wiring accessories; Figure 7 A schematic diagram of the internal structure of the first pole switch disclosed in the first embodiment; Figure 8This is a schematic diagram of the structure of the moving contact disclosed in the first embodiment; Fig. 9 It is another structural schematic diagram of the moving contact disclosed in the first embodiment; Fig.10 It is a structural schematic diagram of the moving contact assembly disclosed in the first embodiment; Fig.11 A schematic diagram of the structure of the contact support disclosed in the first embodiment; Fig.12 It is a schematic diagram of the external structure of the first pole switch disclosed in the first embodiment; Fig.13 It is another structural schematic diagram of the electric switch disclosed in the first embodiment; Fig.14 for Fig.13 Schematic diagram of the structure of the middle contact support; Fig.15 It is a schematic diagram of the structure after multiple contact supports are spliced ​​according to the first embodiment; Fig.16 It is a schematic structural diagram of a plurality of contact supports connected to a multi-link mechanism after being spliced ​​together according to the first embodiment; Fig.17 It is a structural schematic diagram of the multi-link mechanism disclosed in the first embodiment; Fig.18 It is a schematic diagram of the structure of the gear and rack transmission cooperation disclosed in the first embodiment; Fig.19 It is a structural schematic diagram of the connection between the multi-link mechanism disclosed in the first embodiment and the rotating handle; Fig. 20 It is a structural schematic diagram of the arrangement of the first and second terminals of the three-pole switch disclosed in the first embodiment; Fig.21 It is a structural schematic diagram of the movable contact and the stationary contact in the open position disclosed in the first embodiment; Fig. 22 It is a schematic structural diagram of the arc extinguishing chamber disclosed in the first embodiment; Fig.23 It is a schematic diagram of the structure of the arc extinguishing chamber disclosed in the first embodiment being arranged in the insulating housing and the arc channel; Fig.24 Schematic diagram of other structures of the arc extinguishing chamber; Fig.25 It is a schematic structural diagram of the overload release disclosed in the first embodiment; Fig.26 It is a schematic structural diagram of the overload release disclosed in the first embodiment being arranged in an insulating housing; Fig. 27 It is a schematic structural diagram of the linkage between multiple overload releases and a multi-link mechanism disclosed in the first embodiment; Fig.28 It is a structural schematic diagram of the connection between the three-pole switch and the conductive bar disclosed in the first embodiment; Fig.29 A schematic diagram of the electrical switch structure disclosed in the second embodiment; Fig.30 for Fig.29 A partial structural diagram of a switch of CLP Power; Fig.31 It is a schematic structural diagram of the connection between the multi-link mechanism of the present invention disclosed in the third embodiment and the push-pull handle; Fig.32 It is a structural schematic diagram of the arrangement of the first and second terminals of the two-pole switch disclosed in the fourth embodiment; Fig.33 It is a structural schematic diagram of the arrangement of the first and second terminals of the two-pole switch disclosed in the fifth embodiment; Fig.34 and Fig.35 It is a structural schematic diagram of the arrangement of the first and second terminals of the four-pole switch disclosed in the sixth embodiment; Fig.36 , Fig.37 and Fig.38 It is a schematic structural diagram of an electric switch disclosed in the seventh embodiment; Fig.39 and Fig.40 It is a schematic structural diagram of an electric switch disclosed in an eighth embodiment; Fig.41 It is a schematic structural diagram of an electric switch disclosed in a ninth embodiment; Fig.42 It is a schematic structural diagram of an electric switch disclosed in a tenth embodiment; Fig.43 It is a structural schematic diagram of an electric switch disclosed in the eleventh embodiment; Fig.44 It is a schematic structural diagram of an electric switch disclosed in a twelfth embodiment; Fig.45 and Fig.46 It is a schematic structural diagram of an electric switch disclosed in a thirteenth embodiment; Fig.47 It is a schematic structural diagram of an electric switch disclosed in a fourteenth embodiment; Fig.48 , Fig.49 and Fig.50 It is a schematic structural diagram of an electric switch disclosed in a fifteenth embodiment; Fig.51 It is a structural schematic diagram of the electric switch disclosed in the fifteenth embodiment in a free tripping state; Fig.52 It is a structural schematic diagram of the electric switch disclosed in the fifteenth embodiment in the re-locking state; Fig.53 It is a structural schematic diagram of the electric switch disclosed in the fifteenth embodiment in a closed state; Fig.54 It is a schematic structural diagram of a guide rod disclosed in a fifteenth embodiment; Fig.55 It is a structural schematic diagram of the power assisting member disclosed in the fifteenth embodiment; Fig.56 It is a structural schematic diagram of the auxiliary switch disclosed in the fifteenth embodiment being installed in the second cavity and the switch being in a closed state; Fig.57 It is a structural schematic diagram of the auxiliary switch disclosed in the fifteenth embodiment being installed in the second cavity and the switch being in an open or free tripping state; Fig.58 It is a schematic structural diagram of an electric switch disclosed in a sixteenth embodiment; Fig.59 It is a schematic structural diagram of an electric switch disclosed in a seventeenth embodiment; Fig.60 and Fig.61 It is a schematic structural diagram of an electric switch disclosed in the eighteenth embodiment; Fig.62 and Fig.63 It is a schematic structural diagram of an electric switch disclosed in a nineteenth embodiment; Fig.64 , Fig.65 and Fig.66 It is a schematic structural diagram of an electric switch disclosed in the twentieth embodiment; Fig.67 and Fig.68 This is a schematic structural diagram of an electric switch disclosed in the twenty-first embodiment; Figures 69 to 72 A schematic diagram of the structure of an electric switch disclosed in the twenty-second embodiment; Figure 73 to Figure 75 It is a schematic structural diagram of an electric switch disclosed in the twenty-third embodiment; Fig.76 and Fig.77 It is a schematic structural diagram of an electric switch disclosed in the twenty-fourth embodiment; Fig.78 A schematic diagram of the structure of an electric switch disclosed in the twenty-fifth embodiment; Fig.79 and Fig.80 It is a schematic structural diagram of an electric switch disclosed in the twenty-sixth embodiment; Fig.81 and 82 It is a schematic structural diagram of an electric switch disclosed in the twenty-seventh embodiment; Fig.83 It is a schematic structural diagram of the connection between the electrical switch and the conductive bar disclosed in the twenty-seventh embodiment; Fig.84 It is a schematic structural diagram of an electric switch disclosed in the twenty-eighth embodiment; Fig.85 and Fig.86 It is a schematic structural diagram of an electric switch disclosed in the twenty-ninth embodiment; Fig.87 It is a schematic structural diagram of an electric switch disclosed in the thirtieth embodiment; Fig.88 and Fig.89 A schematic diagram of the structure of the connection between the electrical switch and the conductive bar disclosed in the thirtieth embodiment; Fig.90 It is a structural schematic diagram of a pressing plate device; Fig.91 It is a partial structural schematic diagram of an electric switch disclosed in the thirty-first embodiment; Fig.92 for Fig.91 A schematic diagram of the connection structure between the transmission shaft, the connecting shaft and the contact support; Fig.93 for Fig.91 A schematic diagram of the connection structure between the connecting shaft and the contact support; Fig.94 A schematic diagram of the structure of a screw crimping device and a conductive bar with a protrusion or a groove on one side connected to an electrical switch; Fig.95 It is a schematic diagram of the structure of a screw clamping device with a conductive connecting strip and a flat straight strip conductive bar connected to an electrical switch; Fig.96 It is a schematic diagram of the structure of the pulling device in conjunction with a straight planar conductive bar connected to an electrical switch; Fig.97 A schematic diagram of the structure of the lifting device and the conductive bar with a protrusion on one side connected to the electrical switch; Fig.98 It is a schematic diagram of the structure of the pressure plate device in conjunction with the straight strip conductive bar and the connection with the electrical switch; Fig.99 It is a structural schematic diagram of the connection between a screw crimping device and a straight strip conductive bar with holes and an electrical switch. DETAILED DESCRIPTION

[0324] In order to make the purpose, technical scheme and advantages of the implementation of the present invention clearer, the technical scheme in the embodiment of the present invention will be described in more detail below in conjunction with the drawings in the embodiment of the present invention. 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 the present invention, not all of the embodiments. The embodiments described below with reference to the drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limitations on the present invention. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0325] Figure 1-2 A schematic diagram 100' of a multi-pole switch device according to the prior art is shown. Figure 1 As shown, the length, width and height of the multi-pole switch device 100' are arranged along the X, Y and Z directions respectively, and the inlet terminal 10' and the outlet terminal 20' are arranged flat along the width (Y) direction of the switch device 100'. Figure 2 As shown, the moving contact 30' is driven by the operating mechanism 50' to rotate up and down along the height (Z) direction to connect or disconnect electricity with the static contact 40'. The main defect of this solution is that the moving contact 30' can only rotate simply, and the contact distance that can be achieved in a limited space is small, and the size of the contact distance has a decisive influence on the breaking capacity and insulation performance of the switch. Therefore, if the switch device 100' does not increase the external dimensions, it is difficult to further increase the contact distance, and increasing the external dimensions cannot meet the requirements of miniaturization in practical applications.

[0326] Secondly, in practical applications, the switch devices 100' are usually installed side by side in the width direction in the power distribution cabinet, and multiple switch devices 100' are electrically connected to the conductive bus in the cabinet through the transfer copper bus. Figure 3 As shown, in order to facilitate installation and transportation, the width of the existing distribution cabinet is generally set uniformly according to the standard. The width of the existing switch device is relatively large, and the number of switches that can be installed side by side in the limited width space is relatively small. When more switches need to be installed, they need to be installed in the distribution cabinet in multiple layers, which leads to an increase in the height dimension of the distribution cabinet. In addition, since the incoming line end 10' of the existing switch device 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 the transfer copper busbar to be connected to the conductive busbar in an alternating manner up and down. In this way, the connection between the transfer copper busbar and the conductive busbar in the distribution cabinet will become complicated, and the installation is particularly inconvenient. At the same time, the amount of copper busbar is particularly large, which is not conducive to reducing the overall cost of the distribution cabinet. At the same time, the transfer copper busbar is 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.

[0327] In order to solve the technical problems of the above conventional switch devices, the present application provides an electrical switch, which can be a multi-pole switch applied to direct current or a multi-phase switch applied to alternating current, wherein the electrical switch stacks a first cavity and a plurality of second cavities, and stacks a first terminal and a second terminal in a height direction, thereby reducing the width of the conventional switch device. The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0328] First embodiment

[0329] like Figure 4 to Figure 26 As shown, it is assumed that the length, width and height of the electric switch 100 are arranged along the X, Y and Z directions respectively, and the electric switch 100 is a three-pole electric switch, including an insulating shell and internal components, and the internal components at least include 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, which at least includes 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 two ends of the second cavity 160, and the first cavity 150 and the three second cavities 160 are arranged in an upper and lower stack, and the first cavity 150 is arranged above the three second cavities 160, and 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, and 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 an upper insulating part 10 and a lower insulating part 11 up and down; the internal components arranged in the three second cavities respectively form a first pole switch 101, a second pole switch 102 and a 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 from bottom to top along the height direction (Z-axis direction) of the electrical switch 100.

[0330] In this embodiment, the plurality of second cavities 160 are in a strip shape or a 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.

[0331] Please continue to refer to Figure 4, the first pole switch 101, the second pole switch 102 and the third pole switch 103 are respectively provided with a first terminal and a second terminal. In this embodiment, the first terminal 40 or / and the second terminal 50 are a pressure plate device 110. The multiple pressure plate devices 110 at at least one end of the electrical switch are arranged up and down at different phase poles, and the central axes of the multiple pressure plate devices 110 arranged up and down are arranged on different axes, that is, the central axis P1 of the pressure plate device at one end of the first pole switch 101, the central axis P2 of the pressure plate device at one end of the second pole switch 102, and the central axis P3 of the pressure plate device at one end of the third pole switch 103 are not on the same straight line. That is, the multiple pressure plate devices 110 are stacked along the height Z direction of the switch and are mutually staggered along the width Y direction of the switch. Such a setting can greatly save the amount of transfer copper bars in the distribution cabinet, greatly improve the efficiency of manual installation and reduce labor hours, and reduce the cost of the distribution cabinet.

[0332] It should be noted that, in other embodiments, the first terminal 40 and / or the second terminal 50 can also be a chuck device or a screw crimping device or a lifting device. When the first terminal 40 and / or 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 and / or 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.

[0333] For further information, please refer to Figures 4 to 6 The pressure plate device 110 includes a wiring terminal and a wiring accessory, and the wiring accessory includes a connecting plate 110a, a threaded fastener 110b and a spring 110c. One end of the connecting plate 110a is pressed on the wiring terminal to be electrically connected to the wiring terminal.

[0334] In some embodiments, the minimum width of the electrical switch is the sum of the diameters of the two terminal clamping screws. The terminal clamping screws in this embodiment 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.

[0335] In some embodiments, the first pole switch 101, the second pole switch 102, and the third pole switch 103 have substantially the same internal structure. The first pole switch 101 is taken as an example for description. Figure 7As shown, 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 soft wire 60. The moving contact 20 is connected to the first terminal 40 through the soft wire 60. The moving contact 20 and the static contact 30 are arranged opposite to each other along the switch length direction of the X-axis. The moving contact 20 is arranged in a horizontal axial direction. 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. The static contact 30 is electrically connected to the second terminal 50 by riveting, welding, integral molding, etc. In this embodiment, the contact mode between the moving contact 20 and the static contact 30 is planar pressure contact. In some other preferred embodiments, it can also be set that the moving contact 20 is connected to the second terminal 50 through the soft wire 60, and the static contact 30 is connected to the first terminal 40.

[0336] Continue to refer Figure 8 As shown, 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 preferred embodiments, the second hole 20a can also be provided in a protrusion 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.

[0337] In some other preferred embodiments, Fig. 9 As shown, the moving contact 20 is in the shape of a strip, a second hole 20a serving as a moving fulcrum is provided in the middle of the strip, an alloy contact 20d is provided at one end of the strip, and a soft wire 60 is provided at the other end.

[0338] Continue to refer Fig.10 As shown, the moving contact 20 is hinged on the contact support 21 through a second shaft 22 passing through a second hole 20a. The moving contact 20 is crimped together with the contact support 21 through an elastic member 23 and moves 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 at a certain angle relative to the contact support 21, thereby ensuring that there is sufficient overtravel and contact pressure when the moving contact 20 contacts the static contact 30.

[0339] Continue to refer Fig.11 As shown, 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 mentioned here refer to the two ends of 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 preferred embodiments, the groove or through hole 21b can be set to other shapes for the convenience of connection and force transmission.

[0340] Continue to refer Fig.12 As shown, a slide groove is arranged 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, and 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.

[0341] Please refer to Fig.13 and Fig.14 The circular boss 21a is also provided with a bearing 26, which can greatly reduce the friction of the contact support during rotation and movement, and prevent the contact support from getting stuck during transmission.

[0342] Continue to refer Fig.15 As shown, multiple 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 through two connecting shafts 24. In some other preferred embodiments, the number of contact supports 21 can be increased or decreased according to the splicing method in this embodiment.

[0343] Continue to refer Fig.16 As shown, a groove or through hole 21b is provided on the circular boss 21a of the contact support 21. After the three contact supports 21 are assembled into one, the end of the contact support 21 located at the top is indirectly connected to the multi-link mechanism 104. By inserting the transmission shaft 25 into the groove or through hole 21b, the contact support 21 is connected to the multi-link mechanism 104 along the switch height direction of the Z axis.

[0344] Continue to refer Fig.17As shown, 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 connecting rod, a lower connecting rod, 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 part that directly or indirectly drives the end of the contact support to move. The structure of the driving part of this embodiment is cantilever. The driving part includes the 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 switch length along the X-axis on the side plate 1042 is A third slide groove 1042a is arranged in the direction, and 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 connecting rod, the lower connecting rod and the output rod 1041, and finally drives the transmission shaft 25 to slide along the third slide groove 1042a on the side plate 1042 through the output rod 1041, 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.

[0345] Continue to refer Fig.18 As shown, a gear 24a is provided on the rotation 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 preferred 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 to 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 preferred embodiments, In the example, 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 member 10 and the lower slide groove 11a of the lower insulating member 11, the rack 26 will generate a torque on the axis of the gear 24a to drive 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.

[0346] Continue to refer Fig.19As shown, 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 an 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.

[0347] Continue to refer Fig. 20 As shown, 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 distributed in an insulated manner up and down along the switch height direction of the Z axis. The first terminal 40 or / and the second terminal 50 provided on the third pole switch 103 / The insulating cover 70 of the first pole switch 101 on which the second terminal 50 is overlapped upward is provided with a second through hole 70a, and the insulating cover 70 of the first pole switch 101 on which the first terminal 40 or / and the second terminal 50 arranged on the second pole switch 102 is overlapped upward is provided with a third through hole 70b. Stacking the three first terminals 40 and the second terminals 50 in the height direction (Z-axis direction) and staggeredly arranging 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 bus.

[0348] Continue to refer Fig.21 As shown, 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 stationary 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 stationary contact 30, the rack 26 drives the gear 24a to drive the contact support 21 to rotate and then drives the moving contact 20 to rotate in the direction close to the stationary contact 30. During this movement, the angle a will gradually decrease. When the angle approaches 0°, the moving contact 20 contacts the stationary contact 30. When the multi-link mechanism 104 drives the contact support 21 and then drives the moving contact 20 away from the stationary contact 30, the rack 26 drives the gear 24a to drive the contact support 21 to rotate and then drives the moving contact 20 to rotate in the direction away from the stationary contact 30. During this movement, the angle a will gradually increase. When the angle approaches 130°, the moving contact 20 is farthest from the stationary contact 30, reaching the contact opening position.

[0349] In summary, the movable contact in the embodiment of the present disclosure moves forward and backward and rotates in the switch length direction of the X-axis under the direct or indirect drive of the multi-link mechanism, and is electrically connected or disconnected with the static contact, wherein the moving distance L is 1-50 mm and the rotation angle a is 10-130 degrees. Through the composite movement of the movable contact 20, a larger contact opening distance can be achieved in a smaller space, and the switch terminals are stacked in the height direction, thereby innovating a new type of switch electrical appliance with short contacts, large opening distance, small width, easy installation, and easy connection.

[0350] In this embodiment, if Figure 22-26 As shown, the first pole switch 101, the second pole switch 102, and the third pole switch 103 are further provided with an arc extinguishing chamber 80, and the arc extinguishing chamber 80 includes a plurality of metal grids 801 and two arc isolation plates 802, and the plurality of metal grids 801 are arranged at a certain distance between the two arc isolation plates 802, and 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 stationary contact 30. When the moving contact 20 and the stationary contact 30 are opened, the arc generated can quickly enter the arc extinguishing chamber 80, and the arc extinguishing chamber 80 extends from the first terminal 40 to the second terminal 50 along the switch length direction of the X axis, so that the arc extinguishing chamber 80 can make full use of the length of the switch. More metal grids 801 are arranged in the degree direction to improve the breaking capacity of the switch 100 at a higher voltage. Gaps are arranged 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 arranged 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, so that the remaining short arc after being cut by the arc extinguishing chamber 80 can enter the reverse tunnel-type arc channel under the drive of the airflow generated by the breaking, so that the remaining short arc can be further dissipated and absorbed in the arc channel, so that the switch can achieve zero arcing performance under high voltage and high breaking, and greatly improve the safety and reliability of the switch during use.

[0351] In a preferred embodiment, if Fig.24As shown, the minimum width of the switch 100 is W, the length of the moving 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 moving contact 20 or / and the width W2 of the arc extinguishing chamber 80, that is, the larger the length W1 of the moving contact 20 or / and the width W2 of the arc extinguishing chamber 80, the larger the minimum width W of the switch 100. During the opening and closing process of the switch 100, the movement trajectory of the moving contact 20 crosses the center line O of the arc extinguishing chamber 80 along the length direction. During the movement of the moving contact 20, 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. The movement trajectory of the moving contact crosses the vertical center line of the arc extinguishing chamber, which is not only conducive to arc striking, but also can make full use of the metal grids on both sides of the center line of the arc extinguishing chamber to achieve a better arc extinguishing effect.

[0352] In this embodiment, if Figure 25-27 As shown, the first pole switch 101, the second pole switch 102, and the third pole switch 103 are further provided with an overload release 90, which is arranged between the first terminal 40 and the second terminal 50 along the switch length direction of the X axis. The overload release 90 includes a magnetic short circuit release 91 and a thermal overload release 92, and a push rod 93 is further arranged 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 three are connected along the switch height direction of the Z axis by a release rod 94. A push rod 93 extends from the lower phase to the multi-link mechanism 104. 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 release the multi-link mechanism 104, thereby tripping the switch 100, cutting off the fault current in the line, and 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 overall system.

[0353] Fig.28 A schematic diagram of the connection structure between the electrical switch and the conductive bar of this embodiment is shown. 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 the pressing plate device 110.

[0354] The switch of the present invention realizes zero arcing capability under high voltage and high breaking rate in a small volume through the combined movement of the moving contact and the reverse tunnel arc extinguishing technology, which can greatly improve the safety of the switch installed in the distribution cabinet and prevent the arcing generated during the high voltage and high current breaking from causing secondary short circuit in the distribution cabinet and causing serious consequences such as fire or equipment burning.

[0355] Second embodiment

[0356] like Fig.29 and Fig.30 As shown, this embodiment provides another structure of an electric switch, which is different from the first embodiment in that the insulating member 107 is an integrally formed structure, and the three insulating members 107 stacked up and down form three independent second cavities. Compared with the splicing structure of the insulating members in the first embodiment, the integrally formed structure in this embodiment saves assembly steps, saving time and effort.

[0357] Third embodiment

[0358] like Fig.31 As shown, different from the above-mentioned 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 buckle, open and close the switch. The operation method of this handle conforms to the operation habits of existing switches and is convenient for operators to use.

[0359] Fourth embodiment

[0360] like Fig.32 As shown, different from the above 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 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 are staggered along the switch height direction of the Z-axis. The first pole switch 101 and the second pole switch 102 are distributed and insulated upward and downward, and the second terminals 50 can also be staggered left and right along the switch width direction of the Y axis and distributed and insulated up and down along 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). The first terminal 40 and / or the second terminal 50 of the first pole switch 101 and the second pole switch 102 can be completely staggered by stacking in the height direction and staggering in the width direction. This makes installation and wiring more convenient and can be better used in two-phase AC systems or high-voltage DC systems.

[0361] Fifth embodiment

[0362] like Fig.33As shown, 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 direction of the X-axis. In this way, compared with setting the first terminal 40 or / and the second terminal 50 left-to-right in the width direction of the switch, the overall length of the switch will be longer when the first terminal 40 or / and the second terminal 50 is set in the front-to-back direction of the switch length, but the overall width can be smaller. It can be used in distribution cabinets that do not have high requirements on the switch length but have narrower width requirements, thereby improving the applicability of the switch.

[0363] Sixth embodiment

[0364] Please refer to Fig.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 the first terminal 40 and the second terminal 50. The fourth pole switch 103C is arranged below the third pole switch 103. When the first terminal 40 or / and the second terminal 50 of the fourth pole switch are coaxially arranged with the first terminal 40 or / and 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 or / and the second terminal 50 of the first pole switch 101, the second pole switch 102 or the third pole switch 103 are detachable. By setting the terminal of the fourth pole switch 103C to be coaxial with the terminal of the first pole switch 101, the wiring of the fourth pole switch 103C is arranged in this way. The terminal of the fourth pole switch 103C can be overlapped below the terminal of the first pole switch 101, and the total width of the switch will not increase. In order to smoothly insert the screwdriver into the terminal of the fourth pole switch 103C during wiring, some parts of the wiring device on the terminal of the first pole switch 101 are detachable, and the wiring device at least includes screws, spring washers, and flat washers. When installing the wiring of the fourth pole switch 103C, the wiring device of the first pole switch 101 is disassembled, and the screwdriver is inserted from the thread of the first pole switch and through the hole of the insulating shell to the screw of the terminal of the fourth pole switch 103C for wiring installation. After the installation is completed, the wiring of other pole switches can be carried out. The terminal of the fourth pole switch 103C is not limited to being coaxially arranged with the terminal of the first pole switch 101, and can also be coaxially arranged with the second pole switch 102 and the third pole switch 103 to achieve the above effect, and more phase and pole settings can be achieved without increasing the width, which effectively saves installation space and cost. In other embodiments, such as Fig.35As shown, the first terminal and / or the second terminal of the fourth pole switch may also be staggered and arranged non-coaxially with the first terminal and / or the second terminal of the first pole switch, the second pole switch, and the third pole switch.

[0365] Seventh embodiment

[0366] like Fig.36 and 37 , Fig.38 As shown, the electrical switch of this embodiment is different from the first embodiment in that the moving contact 20 is hinged on the contact support 21, the moving contact 20 is only connected to the static contact 30 in a rotational manner, and the transmission shaft 25 is inserted into the groove or through hole 21b at the end of the uppermost contact support 21. The transmission shaft 25 serves as a mechanical structure to connect the contact support 21 to the multi-link mechanism 104 along the switch height direction, and then the moving contact 20 on the contact support 21 is driven by the multi-link mechanism 104 to rotate at an angle of 10 to 130 degrees to achieve electrical contact or separation with the static contact 30. The moving contact of this embodiment has a simple and reliable structure and is commonly used in low-voltage AC and DC systems.

[0367] Eighth embodiment

[0368] like Fig.39 and 40 As shown, the electrical switch of this embodiment is different from the first embodiment in that the moving contact 20 is movably arranged relative to the static contact 30, the structure of the driving part is cantilevered, the driving part includes a transmission shaft 25 and an output rod 1041, the multiple contact supports 21 are connected to the multi-link mechanism through 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, drives the contact support 21 to move together, and then the moving contact 20 is driven by the multi-link mechanism 104 to translate, and the moving distance L is 1 to 50 mm, so as to achieve electrical contact or separation with the static contact 30. The moving contact of this embodiment adopts a translation type, which has a simple and reliable structure and is commonly used in disconnectors to change circuit connections or isolate lines or equipment from power supplies.

[0369] Ninth embodiment

[0370] like Fig.41As shown, the electrical switch of this embodiment is different from the first embodiment in that a movable contact hard conductor 61 is connected between the movable contact 20 and the first terminal 40, and the movable contact hard conductor 61 is a copper sheet. One end of the movable contact 20 is set as a plane and is movably connected to the hard conductor 61 provided with a plane. A second hole 20a for a moving fulcrum is set on the plane of the movable contact 20, and an alloy contact 20d is set on the other end. The process of connecting the movable contact hard conductor with the movable contact is simple, which can save the complex welding process of connecting the soft conductor with the movable contact, and can also reduce costs and save the moving contact movement space. It is often used in occasions where the internal space of the switch is small.

[0371] Tenth embodiment

[0372] like Fig.42 As shown, the electrical switch of this embodiment is different from that of the first embodiment in that the contact mode between the moving contact 20 and the stationary 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 stationary contact, which can greatly increase the contact pressure between the moving contact and the stationary contact and prevent the moving contact and the stationary contact from being repelled. It is often used in occasions with higher requirements for short-term withstand current.

[0373] Eleventh Embodiment

[0374] like Fig.43 As shown, the electrical switch of this embodiment is different from that of the first embodiment in that the moving contact and the static contact are double-breakpoint structures. In this embodiment, two static contacts 30 are provided, and the two static contacts 30 are respectively provided at the diagonal positions at both ends of the moving contact 20. The moving contact 20 is driven by the multi-link mechanism 104 to rotate to achieve separation or contact with the static contact. Compared with the single-breakpoint moving contact, the moving contact of the double-breakpoint moving contact has a faster moving contact opening speed, generates a higher arc voltage through two breaks, and has a stronger current limiting capability. It is often used in high voltage and high breaking capacity occasions.

[0375] In this embodiment, the double-breakpoint moving contact 30 and the two stationary contacts 30 constitute two breakpoints, and an arc channel is correspondingly arranged at each breakpoint. The arc channel extends from the arc extinguishing chamber 80 close to the stationary 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 arranged on the side opposite to the opening direction of the moving contact 20. With such an arrangement, the arc channel is lengthened, so that the remaining short arc after being cut by the arc extinguishing chamber 80 is further extinguished, thereby realizing the zero arcing performance of the switch under high voltage and high breaking, and greatly improving the safety and reliability of the switch during use.

[0376] Twelfth Embodiment

[0377] like Fig.44As shown, 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. The splicing of multiple arc extinguishing chambers can achieve the arc extinguishing performance of an integrated arc extinguishing chamber, and at the same time can reduce the difficulty of riveting a single arc extinguishing chamber grid, which is convenient for automated production.

[0378] Thirteenth Embodiment

[0379] like Fig.45 and Fig.46 As shown, the difference between the electric switch of this example and the first embodiment is that the contact supports 21 of the three phase poles of the three-pole electric switch are arranged in an integrated manner, that is, the contact support 21 of the first pole switch 101, the contact support 21 of the second pole switch 102 and the contact support 21 of the third pole switch 103 are an integrated contact support structure. The integrated structure saves assembly steps, saving time and effort.

[0380] Fourteenth Embodiment

[0381] like Fig.47 As shown, 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, the driving part includes a transmission shaft 25 and a fifth swing rod 10400, the transmission shaft is connected to the multi-link mechanism through the fifth swing rod, 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, one end is fixedly connected to the fifth swing rod 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, and the side of the contact support here refers to the contact The contact support between the two ends is supported circumferentially, and 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 corresponding two 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.

[0382] Fifteenth Embodiment

[0383] like Figure 48 to Figure 49As shown, 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, the second contact support 2102 has a male structure 21d, the female structure 21c and the male structure 21d correspond in position and cooperate with each other, the first contact support 2101 and the second contact support 2102 are spliced ​​by the female structure 21c and the male structure 21d, similarly, the second contact support 2102 and the third contact 2103 are also spliced ​​by the female structure 21c and the male structure 21d thereon, and the female structure 21c and the male structure 21d can assemble multiple contact supports 21 into one.

[0384] 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 swing rod 10400. The transmission shaft 25 connects the contact support 21 with 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 swing rod 10400 of the multi-link mechanism. The first transmission shaft 25a is stepped. The first transmission shaft 25a passes through the first contact support. The extension arm through hole on the support 2101, 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.

[0385] like Figure 50-57 As shown, in order to more clearly illustrate the implementation of the undervoltage release 170, the auxiliary switch 180, the alarm switch 190 and the shunt release (not shown) in this switch, only the lever 1401, the traction rod 1402 and the contact support 21 are shown in the figure to illustrate the state triggering of the undervoltage release 170, the auxiliary switch 180, the alarm switch 190 and the shunt release in different states of the switch. The undervoltage release 170, the auxiliary switch 180, the alarm switch 190 and the shunt release are arranged in the first cavity 150, located on both sides of the multi-link mechanism 104.

[0386] 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 remain attracted, and the tripping device that strikes the switch will be released to cause the switch to be disconnected, thereby ensuring that the switch will not be closed by mistake, thereby ensuring the safety of the line load. The undervoltage release 170 is an assisting 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 part 1701a of the guide rod 1701 strikes the traction rod 1402, thereby causing the switch to trip, and resists the traction rod 1402 to maintain it in the tripped state, thereby disconnecting the switch. The undervoltage release 170 needs to be attracted before closing the switch again. Since the undervoltage release 170 is an assisting suction structure, external force is required to attract the undervoltage release 170, so during the re-closing process. In the process, the lever 1401 touches the first contact portion 1702a of the assisting member 1702, and rotates itself to make the second contact portion 1702b contact the reset portion 1701b of the guide rod 1701, thereby pushing the guide rod 1701 to drive the undervoltage releaser 170 to be attracted and reset, so that the striking portion 1701a of the guide rod 1701 is away from the traction rod 1402, thereby achieving normal closing of the switch. At the same time, the assisting member 1702 returns to its original position under the action of a reset spring (not shown), waiting for the next release of the undervoltage releaser 170 to be reset and attracted.

[0387] The shunt release is generally used for remote control to disconnect the switch. The shunt release is also an auxiliary suction structure, which 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 to drive the guide rod 1701 to move, hit the traction rod 1402 to trip the switch and disconnect the switch. When the next closing is to be performed, the auxiliary member 1702 is buckled again to reset the shunt release and 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.

[0388] The auxiliary switch 180 includes a trigger rod 1801 and an auxiliary contact. The auxiliary contact operates simultaneously with the main contact. The main contact here refers to the moving contact of the electrical switch. The auxiliary contact is used to indicate the opening and closing state of the main contact. In many cases, the main contact of the circuit breaker has a large current or a high voltage and cannot be used directly for monitoring. It must be replaced by an auxiliary switch, and the opening and closing state of the switch is judged by the state of the auxiliary switch. In the switch, the auxiliary switch is generally in one state in the closed state and in another state in the free tripping or opening state. The contact support 21 and the moving contact of the switch act synchronously, so the auxiliary switch 180 can be triggered by the contact support 21 in different positions to judge the opening and closing state of the switch. The contact support 21 is provided with a swing rod 211. When the switch is in the open or free tripping state, if the contact support 21 drives the swing rod 211 to touch 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 swing rod 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. The state conversion of the auxiliary switch 180 is completed. In addition, the auxiliary switch 180 can also be set in the second cavity 160, and the auxiliary switch 180 can be directly triggered by the contact support 21 to perform state conversion.

[0389] For the alarm switch, it only operates when the switch trips due to a fault, and does not operate during normal opening operations. It is used to determine whether the circuit breaker trips due to a fault. In the switch, the traction rod is generally in one position when it is re-engaged and closed, and in another position when it is free to trip. The position of the traction rod can be used to determine whether the switch is tripped due to a fault. The alarm switch 190 includes a trigger rod 1901, a rocker 1902 and a compression spring 1903. The trigger rod 1901 maintains a linkage state with the traction rod 1402 through the rocker 1902. The compression spring is arranged on the side of the rocker 1902 close to the traction rod 1402. When the switch is released or closed again, the traction rod 1402 flips over due to the action of the tripping button in the multi-link mechanism 104, and the side of the rocker 1902 close to the traction rod 1402 moves along with the traction rod 1402 under the action of the spring 1903. At this time, the trigger rod 1901 moves along 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 is returned 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.

[0390] Sixteenth Embodiment

[0391] like Fig.58 As shown, the electric switch of this embodiment is different from that of the first embodiment in that the control mechanism is an electric control mechanism, which is arranged in the first cavity of the electric switch, and the control mechanism at least includes a motor 112, a transmission mechanism 113, and an electronic controller. In this embodiment, the motor transmission shaft is the driving part of the control mechanism, and 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, and is connected to the multi-link mechanism 104 through the half shaft 1061. The motor 112 is connected to the electronic controller signal, and 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 realizing 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.

[0392] Seventeenth Embodiment

[0393] like Fig.59 As shown, the electric switch of this embodiment is different from the first embodiment in that the control mechanism is an electromagnetic drive control mechanism, which is arranged in the first cavity of the electric switch, and the control mechanism at least includes an electromagnet 115 and a multi-link mechanism 104, and the electromagnet 115 is mechanically connected to the multi-link mechanism 104. The electromagnet is the driving part of the control mechanism, and the multi-link mechanism includes a plurality of connecting rods as a mechanical structure. When the electromagnet 115 is energized, it generates a driving force to be transmitted to the multi-link mechanism 104, and the multi-link mechanism 104 drives the moving contact 20 to move, so as to achieve electrical contact and separation with the static contact 30. By setting up an electromagnetic drive control mechanism, the electromagnet is used to convert electromagnetic energy into mechanical energy, drive the moving contact to move, and realize the opening and closing operation of the switch, and the switch has reliable performance, long service life, and fast response speed.

[0394] Eighteenth Embodiment

[0395] like Fig.60 and Fig.61 As shown, different from 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 moving contact 20 on the contact support 21 to make 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.

[0396] 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 located at the top is connected to the multi-link mechanism 104 through the transmission shaft 25. 1b, the transmission shaft 25 is connected to the output rod 1041 of the multi-link mechanism 104 along the switch height direction of the Z axis, and the transmission shaft 25 is driven by the output rod 1041 to slide along the third slide groove 1042a on the side plate 1042, driving the contact support 21 to slide, and then driving the moving contact 20 to move forward and backward 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 transmission action of the multi-link mechanism such as the upper link and the lower link, driving the contact support 21 to rotate along the axis, and then driving the moving contact 20 to rotate. In this embodiment, a multi-link structure is used to transmit power to realize the compound movement of the moving contact. Compared with the gear rack transmission, the structure is simple and reliable, the parts are easy to manufacture and install, and the production cost is low.

[0397] Nineteenth Embodiment

[0398] like Fig.62 and Fig.63 As shown, different from the eighteenth embodiment, the multi-link mechanism 104 is indirectly connected to the central 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 electrically connect and disconnect with the static contact.

[0399] 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 body 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 member, 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 connecting rod, the lower connecting rod 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.

[0400] Twentieth Embodiment

[0401] like Fig.64 , Fig.65 and Fig.66As shown, 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 swing rod 10401, a second swing rod 10402, a third swing rod 10403, and a linkage rod 10405. The control mechanism is arranged in the first cavity 150, and the transmission shaft 25 is inserted from the first cavity 150 to the second cavity 160, and is arranged 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 the two first swing rods 10401, that is, one end of the first swing rod 10401 is connected to the transmission shaft 25. The transmission shaft 25 is connected to the moving shaft 25, and the other end is connected to the multi-link mechanism 104, and 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 10402, and the other end of the second rocker 10402 is hinged to the linkage rod 10405, and the linkage rod 10405 is connected to the contact support 21 through the third rocker 10403; the contact supports 21 are coaxially and stacked in a plurality of second cavities 160, and are connected between the contact supports 21 through a non-rotatable connecting shaft 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, as the frame current increases, its height will also increase, 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 operating 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 rotation force is applied to the middle layer contact support 21 to solve the deflection problem. The rotation of the drive unit 1040 The center is parallel to the rotation center of the contact support 21 but is not coaxially arranged. The torsional force is transmitted to the contact support 21 in the middle position through the transmission shaft 25 to perform the closing and opening operations, which has the effect of rapid and smooth action. The transmission shaft 25 is set as a hexagonal shaft, which cooperates with the hexagonal holes on the first swing rod 10401 and the second swing rod 10402. When the transmission shaft 25 rotates, the first swing rod and the second swing rod can also swing synchronously. The shaft hole cooperation of the transmission shaft 25 and the first swing rod and the second swing rod is not limited to hexagonal, but can also be triangular, The effect of rotational movement can be achieved by matching with non-rotatable shapes such as quadrilaterals, polygons, and special shapes. The contact support 21 is stacked and connected by a connecting shaft 24. The connecting shaft 24 is installed at the rotation center of the contact support 21. The connecting shaft 24, the contact support 21, and the third swing rod 10403 are fixedly connected to each other and cannot rotate relative to each other, so that all contact supports 21 can rotate synchronously together. The third swing rod 10403 and the second swing rod 10402 are hinged by a linkage rod 10405 When the multi-link mechanism 104 of the control mechanism performs the closing and opening operations, the swing force is first applied to the first swing rod 10401, and the first swing rod 10401 rotates under the force, and transmits the rotational force to the second swing rod 10402. The second swing rod 10402 performs the swing amplitude movement and transmits the swing amplitude movement force to the third swing rod 10403 through the linkage rod 10405. The third swing rod 10403 transmits the swing force to the contact support 21 to realize the rotational movement, thereby performing the connection and disconnection operations of the moving contact 20 and the static contact 30. The lengths of the three swing rods in this embodiment can be adjusted to each other according to the torque and angle requirements of the rotation, so as to achieve a larger rotation angle or a larger torque.

[0402] Twenty-first embodiment

[0403] like Fig.67 and Fig.68As shown, compared with other embodiments, the driving part 1040 of this embodiment 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 structure of the driving part is a rotating rod type, and the driving part 1040 at least includes a transmission shaft 25 and a fourth swing rod 10404. The multi-link mechanism 104 of the control mechanism is arranged in the first cavity 105, and the transmission shaft 25 is connected to the multi-link mechanism 104 of the control mechanism through at least two of the fourth swing rods 10404. The transmission shaft 25 is rotated under the control of the multi-link mechanism 104 of the control mechanism. The rotating center 212 of the contact support 21 is eccentric to the rotating center of the moving contact 20 relative to the contact support 21, the distance between the rotating center 212 of the contact support 21 and the alloy contact 20d of the moving contact is greater than the distance between the rotating center of the moving 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 rotating center 212 of the contact support 21, the transmission shaft 25 and the rotating 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 relative to 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 rod 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 stationary contact 30 are electrically connected and disconnected. Since the circuit breaker requires a larger opening distance between the moving contact and the stationary contact under high voltage 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 metal contact 20d can realize 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 to make the entire contact support 21 rotate. When the moving contact 20 contacts the static contact 30, the moving contact 20 and the contact support 21 rotate to realize the contact overtravel and contact pressure. By eccentrically setting the rotation center 212 of the contact support 21 and directly applying the torsional force to the contact support 21, the contact support 21 The rotation 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 rotation center of the head 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 the contact supports 21 can rotate synchronously together, the fourth swing rod 10404 is connected to the multi-link mechanism 104 of the control mechanism, when the control mechanism performs the closing and opening operations, the swing power is first applied to the fourth swing rod 10404, the fourth swing rod 10404 is subjected to force to cause the transmission shaft to rotate, and the transmission shaft 25 transmits the rotation force to the contact support 21, and the contact support 21 rotates with the moving contact 20 to achieve the connection and disconnection operation of the moving contact 20 and the static contact 30. The length of the fourth swing rod 10404 of this embodiment and the distance between the rotation center 212 of the contact support 21 and the alloy contact 20d of the moving contact can be adjusted to each other according to the torque and angle requirements of the rotation, so as to achieve a larger rotation angle or a larger torque, and better achieve a large opening distance to increase the rated voltage level. ;

[0404] Twenty-second embodiment

[0405] like Fig.69 and Fig.70 As shown, 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 on 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 1 0417, the hinge point is point G, and the fifth link 10415 can rotate around the hinge point G, the third link 10413, the fourth link 10414 and the fifth link 10415 form a second group of four-link structures; the other end of the fifth link 10415 can rotate and slide in the slide slot 10416, and the hinge point of the fifth link 10415 in the fourth slide slot 10416 of the fixed plate 10417 is point F. The fifth link 10415, as the output end of the multi-link mechanism, can drive the contact support 21 to rotate.

[0406] In this embodiment, the first group of four-link structures and the second group of four-link structures together constitute the multi-link mechanism 104, wherein the lever ratio DE / CD between the distance DE between the hinge point D and the hinge point E and the distance CD between the hinge point C and the hinge point D is greater than 1.0; the lever ratio FG between the distance FG between the hinge point F and the hinge point G and the distance GH between the hinge point G and the hinge point H is greater than 1.0. The lever ratio of the multi-link mechanism is adjusted to achieve the enlargement of the contact support angle during opening and closing, 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 enlargement effect. In this way, the switch can achieve a large contact opening distance, which can better meet the requirements of the new power system for high voltage, high breaking, and zero arcing of switching electrical appliances.

[0407] like Fig.71 and 72 As shown, the structure of the driving part in this embodiment is of 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-connected to the connecting part 212 of the contact support 21. The contact support 21 rotates around its own axis 211 under the activation of the driving part, so that the moving contact and the static contact can be electrically connected and disconnected.

[0408] Twenty-third embodiment

[0409] like Figure 73 to Figure 75 As shown, the electrical switch of this embodiment is different 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 method allows the multi-link mechanism to act on the contact support of the middle phase pole of the switch, which can improve the stability of motion transmission.

[0410] 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 rotatably connected 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 arranged on the rotation axis of the connecting shaft 24, and at least one rack is arranged 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 member. 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.

[0411] The control mechanism is provided with a driving part for directly or indirectly driving the side movement of the contact support, and the structure of the driving part is a lever type.

[0412] Specifically, the driving part includes an output rod 1041, a transmission shaft 25, a first rod 1045 and a second rod 1046. The transmission shaft 25 can slide in the 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 matched with the rotation center of the contact support 21, and the contact support 25 can rotate around the connection between it and the second rod 1046. The output rod 1041 of the multi-link mechanism moves, so that the transmission shaft 25 moves along the third slide groove 1042a on the side plate 1042, and then drives the contact support 21 to move along the slide groove on the insulating member 10 of the insulating housing through the first rod 1045 and the second rod 1046. When the contact support 21 moves along the slide groove 10a on the insulating member, the gear 24a on the contact support 21 rotates along itself under the torsional torque of the rack 26, and then drives the moving contact to move and rotate in a composite motion to connect or disconnect electricity with the static contact. A guide hole 12a is provided on the insulating member 10 for the second rod 1046 to move along the length direction of the switch. Both ends of the first rod 1045 are provided with welded sleeves to increase the stability of force transmission.

[0413] Twenty-fourth embodiment

[0414] like Fig.76 and Fig.77 As shown, 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, 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 with the shaft on the side plate 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 with the output rod through the circular hole 1041b, and the other end is hinged with the transmission shaft 25, one end of the transmission shaft 25 is connected to the central end of the uppermost contact support, and passes through the third slide groove on the control mechanism, and 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.

[0415] Twenty-fifth embodiment

[0416] like Fig.78As shown, 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, which can improve the stability of motion transmission.

[0417] 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 connecting rod, a lower connecting rod and an output rod 1041. A round hole 1041b is provided at the end of the output rod 1041. One end of the third rod 1047 passes through the round 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 sliding 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 sliding groove of the control mechanism, and drives the contact support to move up and down through the first rod and the second rod.

[0418] Twenty-sixth embodiment

[0419] like Fig.79 As shown, the electrical switch of this embodiment is different from the first embodiment in that the internal components further include a current collector 300, at least one electronic controller 400, and a flux converter 500, and the current collector 300 and the flux converter 500 are electrically connected to the electronic controller 400, respectively, the current collector 300 is arranged in the second cavity 160, and the electronic control machine 400 and the flux converter 500 are arranged in the first cavity 150. Among them, the current collector 300 is used to detect the current of the second terminal 50, and the electronic controller 400 receives the current collected by the current collector 300 and makes a judgment on it. When the electronic controller 400 recognizes that the current collected by the current collector 300 is an overcurrent, the flux converter 500 is controlled to act to hit the traction rod 1402, thereby causing the switch to trip.

[0420] In other embodiments, Fig.80 As shown, the electronic controller 400 can also be mounted as an independent unit below the multi-pole switch in the height direction. In this way, the electronic circuit breaker has the characteristics of fast response capability, precise protection, efficient power management, remote operation, etc. It can detect faults in the circuit in a short time and quickly disconnect the circuit, effectively avoiding circuit damage and accidents, effectively reducing the incidence of circuit accidents, and improving the safety performance of the circuit.

[0421] Twenty-seventh embodiment

[0422] like Fig.81 As shown, different from the first embodiment, the first terminal 40 and / or the second terminal 50 of this embodiment is a clamp device 120, and the clamp 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 clamp devices 120 arranged up and down are arranged opposite to each other without misalignment, which makes installation and wiring more convenient, eliminates cumbersome screw connections, and greatly improves the efficiency of switch installation and wiring.

[0423] like Fig.82 As shown, the central axes of the multiple upper and lower clamping devices can also be arranged in a non-coaxial manner, and there is a distance between the central axis P5 of the upper clamping device 120 and the central axis P6 of the lower clamping device 120, that is, the upper and lower clamping devices 120 are arranged in a left-right offset relationship with each other along the width direction of the switch. The specific arrangement of the clamping device can be flexibly adjusted according to different applications.

[0424] like Fig.83 As shown, this embodiment further provides a power distribution system, including multiple groups of conductive bars 200 and multiple electrical switches, multiple electrical switches are arranged along the width direction (Y-axis direction) and installed in the distribution cabinet, multiple groups of conductive bars 200 are arranged in sequence along the height direction of the electrical switch, each group of conductive bars 200 extends along the width direction of the electrical switch, and each phase pole is stacked along the depth direction of the cabinet, that is, the height direction of the switch, the conductive bar 200 is inserted into the slot 1001 at the end of the electrical switch and clamped and connected with the clamp device 120. This embodiment adopts the clamp device to connect the conductive bar, which makes installation and wiring more convenient, eliminates the cumbersome screw connection, and greatly improves the installation and wiring efficiency.

[0425] Twenty-eighth Embodiment

[0426] like Fig.84 As shown, 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, and 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.

[0427] Furthermore, the lifting device 140 is at least composed of screws 140a, terminal blocks 140b and terminal frames 140c, and the tightening direction of the terminal screws is at an angle of about 1 to 60 degrees with the Z-axis direction of the circuit breaker height direction. When the conductive bar is installed, the conductive bar can be in the form of a comb-shaped conductive bar, a straight bar, etc. When it is a straight bar, the terminal frame can be slotted to form a C-shaped terminal frame, which can avoid the straight bar to be obliquely inserted into the switch terminal and pass through the switches to facilitate current convergence. When the conductive bar is a comb-shaped conductive bar, the terminal frame can be a conventional tunnel-type terminal frame. The comb-shaped conductive bar 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 the terminal block and the conductive bar are fastened to form electrical contact. This type of inclined layout terminal saves space compared to the conventional step-type staggered layout terminal, and the wiring method is also convenient and flexible, which can adapt to the installation of conductive bars and wires or UT terminals.

[0428] Twenty-ninth embodiment

[0429] like Fig.85 and Fig.86As shown, this embodiment is different from the twenty-eighth embodiment in that the central axes of the plurality of lifting devices 140 are coaxially arranged. Specifically, in this embodiment, when the central axes or central axes of the first terminal 40 or the second terminal 50 of different phases and poles are coaxially arranged, the first terminal 40 or the second terminal 50 is provided with the lifting device, and the lifting device at least includes a screw 501, a wiring board 503, a wiring frame 502, an inter-pole linkage insulating member 504, and an anti-loosening spring 505. The wiring board 503 and the wiring frame 502 are provided with through holes, and the wiring board 503 is arranged in the wiring 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 wiring frame 502, the wiring board 503, the anti-loosening spring 505, the inter-pole linkage insulating member 504, and the anti-loosening spring 505 are coaxially arranged with the through holes. The components 504 are overlapped and arranged in sequence in the Z-axis direction, and are repeatedly superimposed according to the number of phases and poles. A fixing shaft is provided on one of the screw 501 and the inter-pole linkage insulating component 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 size in the length direction smaller, the connection terminals of the switches of all poles are overlapped and coaxially arranged. When installing, the pulling device of the connection terminal of the first pole switch 101 is tightened with a screwdriver, and the pulling devices of the connection terminals of the second pole switch 102, the third pole switch 103, and the fourth pole switch 103C are also pulled and pressed together with the rotation. The pulling device can be overlapped according to the number of phases and poles, and the interpole linkage insulating member 504 is used for connection in the middle. When the first pole switch 101 is tightened by a screwdriver, 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. The third pole switch 103 and the fourth pole switch 103C also transmit the torsional force through the interpole linkage insulating member 504 in the same way to make them perform a pulling action to press the terminal board 503 for wiring. In order to make the wiring reliable, the pulling device An anti-loosening spring 505 is also provided. The screw 501 and the wiring frame 502 are threaded to lift the wiring frame, and a conductor is inserted between two wiring boards 503. One of the wiring boards 503 is against the anti-loosening spring 505. In the process of lifting the wiring frame 502, the anti-loosening spring 505 is squeezed, and the anti-loosening spring 505 transfers the pressure to the wiring board 503. When the anti-loosening spring 505 is pulled to the limit position, it is completely compressed, and the gap between the wiring board 503 and the conductor is completely closed and pressure contacted. The potential energy of the anti-loosening spring 505 is always maintained. When the switch is vibrated or the conductor yields, virtual contact or loosening failure will not occur, which greatly improves the safety of wiring installation and the reliability of long-term operation.

[0430] Thirtieth Embodiment

[0431] like Fig.87 , Fig.88 and Fig.89 As shown, different from 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 arranged below the terminal block or a thread is directly arranged on the terminal block, and a groove or hole is arranged on the conductive bar 200, and the groove 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 the terminal block and the conductive bar 200 are in electrical contact. When disassembling, the screw is loosened, and the electrical switch as a whole slides along the Z-axis direction of the slot direction, so that a single switch can be disassembled and maintained without changing the position of the conductive bar 200. An insulating retaining wall is also provided on the housing between adjacent phase poles of the electrical switch, which is used to electrically isolate adjacent phase poles, increase creepage distance and electrical clearance, and improve system safety. This embodiment is very convenient for multi-way convergence or diversion in a distribution box / cabinet, and has the advantages of saving conductors, simplifying switch layout, convenient installation, reliable electrical contact, and convenient single maintenance or replacement. In this embodiment, the conductive bar 200 is in the shape of a long strip. In other embodiments, the conductive bar may be in the shape of an L-shape or a U-shape, and the specific shape is not limited.

[0432] The present application also provides a pressing plate device, such as Fig.90As shown, the pressing plate device at least includes a screw 1101, a terminal block 1105, a pressing 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 disposed between the terminal block 1105 and the pressing plate 1104 is stressed and fastened between the pressing plate 1104 and the terminal block 1105. The terminal block 1105 is provided with a threaded hole or a through hole matching the screw 1101 and a nut 1106. The pressing plate 1104 is L-shaped, with a through hole in the middle for passing the screw 1101. The right-angle end 1104b is away from the external conductive bar 1107, and the right-angle end 1104b is away from the external conductive bar 1107. The face end is crimped onto the external conductive bar 1107, and the straight face end is provided with a protrusion 1104a, which is located at the crimping position, and 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 arranged 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, and the shape of the busbar can 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 bar 1107 can still be reliably crimped when it is placed on only one side of the screw 1101. The pressure plate 1104 of this embodiment is cleverly The pressing plate 1104 is cleverly designed, with a right-angle end 1104b and a raised portion 1104a. A through hole is provided in the middle of the pressing 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 pressing plate 1104 will have elastic deformation, which will cause the pressure point of the pressing plate 1104 on the external conductive bar 1107 to change, causing the external conductive bar 1107 to loosen. In order to achieve a more reliable fastening effect As a result, the spacing between the protrusion of the pressure plate 1104 and the through hole is smaller than the spacing between the through hole and the right-angle end 1104b. This arrangement allows the downward pressure of the screw 1101 to be applied to the external conductive bar 1107 more through the protrusion 1104a, resulting in a better fastening effect. 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 to achieve fastening, or a nut 1106 can be set at the bottom to cooperate with the screw 1101 to achieve fastening, both of which can achieve the effect of this embodiment.

[0433] Thirty-first embodiment

[0434] like Fig.91 , Fig.92 and Fig.93As shown, 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.

[0435] Specifically, the driving part 1040 at least includes 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 control of the multi-link mechanism 104 of the control mechanism. The transmission shaft 25 is inserted from the first cavity 105 into the plurality of 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 coaxially 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, and 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.

[0436] 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 with the static contact. The transmission shaft 25 is set as a hexagonal shaft, which cooperates with the hexagonal holes in 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 accordingly. The cooperation between the transmission shaft 25 and the output rod 1041 and the shaft hole in the center of the connecting shaft 24 is not limited to a hexagonal shape, but can also be a triangle, a quadrilateral, a polygon, an irregular shape, etc. that cannot rotate with each other to achieve the effect of transmitting rotational motion. Similarly, the matching surface of the connecting shaft 24 and the contact support 21 is not limited to the limitation of the bow shape.

[0437] The contact supports 21 are stacked 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 to realize 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 rotation and reduce the torque loss caused by 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.

[0438] The present application also provides connection structures of conductive bars and electrical switches in various structural forms, such as Figures 94 to 99As shown, the multiple first terminals of the at least one electrical switch are directly or indirectly connected to the multiple groups of conductive bars 200, the multiple groups of conductive bars 200 are arranged in a horizontal or vertical direction, and 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 one side of which is provided with a hole, an opening, a groove or a protrusion. When the conductive bar 200 is in the shape of a flat straight bar, any side of the conductive bar 200 is directly or indirectly fixedly connected to the first terminal 40 of the electrical switch, and one side of the conductive bar 200 When a hole or opening or a groove or a protrusion is provided, one side of the hole or opening or the groove or the protrusion 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 bars 200, and a spacing is provided between the two conductive bars 200. The multiple first terminals 40 are inserted into the spacing to be electrically connected to the conductive bars 200 respectively. In the actual application of the power distribution system, the electrical switch can be configured according to actual needs. The number of switches and the length of the conductive bar 200 are set according to the number of current branches. The layout direction of the switch and the conductive bar 200 can be horizontal or vertical. The layout method can be set 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 a conductive bar with a hole or opening or 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 the conductive bar 200 is set according to the number of phases and poles of the switch. The single-pole switch uses one conductive bar, the two-pole switch uses two conductive bars, the three-pole switch uses three conductive bars, and the four-pole switch uses four conductive bars. The conductive bar 200 is set according to the stacking direction of the switch, and the spacing is arranged according to the layer spacing of the switch, so that the conductive bar 200 can be accurately inserted into the first terminal 40 of each phase and pole for easy electrical connection to achieve distribution of electrical energy.When the first terminal 40 of the electrical switch is set as a clamp 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 convenient 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 clamped on the terminal board 130b to achieve electrical contact between the conductive bar 200 and the terminal board. In order to achieve a better conductive effect, a conductive connecting strip 130d can also be set on the conductive bar 200 and the terminal board to enhance conductivity. The structure of the terminal bar 200 can be implemented as a flat straight bar or a hole, opening or groove is set on one side to be electrically connected to the first terminal 40. The 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 multiple groups of conductive bars. 200 is installed. When the first terminal 40 of the electrical switch is set as a lifting 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 to the terminal board. 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 achieve electrical connection. When the first terminal 40 of the electrical switch is set as a pressing plate device 110, the gap between the terminal board and the pressing 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 to the terminal board. The conductive bar is a flat straight strip. The conductive bar arranged in this way has a simple structure and is easy to process. The implementation scheme of the electrical switch in the power distribution system of this case is not limited to the above combination. Its specific implementation scheme can be combined and implemented according to the focus of consideration in the power distribution system, which has significantly improved operation reliability, economy, and convenience of operation.

[0439] The present invention can be realized in other specific forms without departing from its spirit and essential characteristics. The current embodiment is considered to be exemplary and not restrictive in all aspects, and the scope of the present invention is defined by the appended claims rather than the above description, and all changes falling within the meaning of the claims and the scope of equivalents are thus included in the scope of the present invention.

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, characterized in that: 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, characterized in that: 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, characterized in that: 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, characterized in that: 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, characterized in that: 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, characterized in that: 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, characterized in that: 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, characterized in that: 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. The electrical switch according to claim 6, 7 or 8, characterized in that: 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 electric switch according to claim 9, characterized in that 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 electric switch according to claim 9, characterized in that 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 electric switch according to claim 11, characterized in that 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 electric switch according to claim 9, characterized in that 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 electric switch according to claim 13, characterized in that The multi-link mechanism of the control mechanism is arranged in the first cavity.

15. The electric switch according to claim 13, characterized in that 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 according to claim 13, characterized in that The contact supports are coaxially and stacked in multiple second cavities, and the multiple contact supports are spliced ​​at the rotation center through female and male structures with torque transmission.

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

18. An electrical switch according to claim 14 or 15 or 16 or 17, characterized in that: 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 according to claim 9, characterized in that 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 according to claim 9, characterized in that 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. The electrical switch according to claim 20, characterized in that The multi-link mechanism of the control mechanism is arranged in the first cavity.

22. The electrical switch according to claim 20, characterized in that 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. The electric switch according to claim 22, characterized in that 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. The electric switch according to claim 23, characterized in that 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 according to claim 9, characterized in that 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. The electrical switch according to claim 25, characterized in that The multi-link mechanism of the control mechanism is arranged in the first cavity.

27. The electrical switch according to claim 25, characterized in that 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, characterized in that , the rotation center of the contact support is eccentric to the rotation center of the moving 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 electrical switch of claim 29, characterized in that The transmission shaft and the contact support are fixedly connected and cannot rotate relative to each other.

31. The electrical switch of claim 29, characterized in that The contact supports are coaxially and stacked in multiple second cavities, and the multiple contact supports are connected by 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, characterized in that: 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, characterized in that: 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, characterized in that: 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, characterized in that :The driving structure is a lever type, and the driving part includes an output rod, a transmission shaft, a first rod and a second rod.

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

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

40. The electrical switch of 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 of claim 37, characterized in that The contact supports are coaxially and stacked in a plurality of second cavities, and the plurality of contact supports The two parts are connected by a non-rotatable connecting shaft.

42. An electrical switch according to claim 41, characterized in that: 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, characterized in that: 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, characterized in that: 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, characterized in that: 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, characterized in that The structure of the driving part is a lever type, and the driving part includes 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, characterized in that: 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. The electrical switch of 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, characterized in that: 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, characterized in that: The control mechanism is disposed in the first cavity and / or the second cavity.

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

58. The electrical switch of 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. The electrical switch of 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, characterized in that: 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, characterized in that: 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, characterized in that: 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, characterized in that: 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, characterized in that: 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, characterized in that: 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, characterized in that: 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, characterized in that: 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, characterized in that : The contact support with multiple moving contacts is an integrated setting or a split setting with female and male structures of torque transmission spliced ​​together.

78. The electrical switch of 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. The electrical switch of 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. The electrical switch of 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. The electrical switch of 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, characterized in that: The second cavity is composed of at least two cavities stacked in the Z-axis direction.

85. The electrical switch of 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, characterized in that: 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. The electrical switch of 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, characterized in that: 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. The electrical switch of 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, characterized in that: The arc extinguishing chamber is arranged on the left side of the moving contact and / or the stationary contact.

96. The electrical switch of 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, characterized in that: 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, characterized in that: 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, characterized in that: 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, characterized in that: 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, characterized in that: 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, characterized in that: 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, characterized in that: 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, characterized in that: 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, characterized in that: 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, characterized in that: 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. The electrical switch of claim 126, characterized in that: 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, characterized in that: 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, characterized in that: 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. The electrical switch of claim 133, characterized in that: 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, characterized in that: 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, characterized in that: 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, characterized in that: 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 according to claim 144, characterized in that 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 according to claim 145, characterized in that 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 according to claim 146, characterized in that 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 according to claim 144, characterized in that The conductor of the first terminal protrudes out of or is shorter than the insulating housing of the switch.

149. The power distribution system according to claim 144, characterized in that The plurality of groups of conductive bars are composed of at least one or two conductive bars.

150. The power distribution system according to claim 144 or 149, characterized in that: 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 according to claim 144 or 149, characterized in that: 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 according to claim 144 or 149, characterized in that: 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 according to claim 144 or 149, characterized in that: 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 according to claim 144 or 149, characterized in that: 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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