Switching and power supply system

Abstract

The application discloses a switch and power supply system, and relates to the technical field of low-voltage electrical apparatuses. The switch comprises a plurality of phase pole units, each of which comprises a contact support, the contact support rotates around the axis of a rotating shaft, the axis of the rotating shaft extends in the width direction, and the plurality of phase pole units are arranged in the height direction, and the plurality of phase pole units extend in the length direction from the direction close to the rotating shaft to the direction away from the rotating shaft, wherein the length direction, the width direction and the height direction are perpendicular to each other in pairs. The switch can reduce the size occupation of the switch in the width direction, thereby improving the internal space utilization rate of the power distribution cabinet.

Description

Technical Field

[0001] This application relates to the field of low-voltage electrical technology, and more specifically, to a switch and power supply system. Background Technology

[0002] In power distribution systems, switchboards, as core equipment for power distribution and control, are widely used in various scenarios such as industrial production and civil buildings. Due to factors such as installation environment, overall layout planning, and equipment integration requirements, the structural design of switchboards in existing technologies often imposes strict limitations on the width direction. Especially in some compact power distribution scenarios, the width of the switchboard must be adapted to specific installation areas or supporting equipment, resulting in very limited usable space in the internal width direction. This spatial constraint has become a key factor restricting the optimization of the internal component layout of the switchboard.

[0003] As a core component in distribution cabinets for circuit protection and fault isolation, the size and specifications of switches directly affect the utilization rate of the cabinet's internal space. Currently available switches, in order to meet specific technical specifications such as switching capacity and protection performance, have insufficient control over their width dimensions in their structural design, resulting in a relatively large overall width. When such switches are applied to distribution cabinets with limited width, they significantly occupy internal lateral space. This not only limits the number of switches that can be installed in a single distribution cabinet, affecting the expansion capacity and power supply reliability of the distribution system, but also leads to crowded internal component layout, increasing wiring difficulty and insufficient maintenance and operation space. Ultimately, this negatively impacts the overall performance and practicality of the distribution system, thus necessitating optimization and improvement of the switch's structural design. Utility Model Content

[0004] The purpose of this application is to provide a switch and power supply system that can reduce the size occupied by the switch in the width direction, thereby improving the internal space utilization of the distribution cabinet.

[0005] The embodiments of this application are implemented as follows: A first aspect of this application provides a switch comprising a plurality of phase pole units, each phase pole unit including a contact support that supports rotation about the axis of a rotating shaft extending in the width direction, and the plurality of phase pole units arranged in the height direction and extending in the length direction from near the rotating shaft away from the rotating shaft, wherein the length direction, the width direction, and the height direction are mutually perpendicular. This switch can reduce the size occupied by the switch in the width direction, thereby improving the internal space utilization of the distribution cabinet.

[0006] As one possible implementation, it also includes an operating handle, which is drivenly connected to a plurality of the phase pole units, and the operating handle and the phase pole units are arranged along the length direction.

[0007] In one possible implementation, the operating handle and one of the phase pole units are arranged in a straight line.

[0008] As one possible implementation, the rotation axis of the operating handle extends along the width direction.

[0009] In one possible implementation, the phase pole unit further includes a terminal assembly located on one side of the length direction supported by the contact, and the operating handle located on the other side of the length direction supported by the contact.

[0010] In one possible implementation, the operating handle is driven to one of the phase pole units, and the contacts of two adjacent phase pole units are connected by a transmission component.

[0011] As one possible implementation, the phase pole unit further includes a contact system and an arc extinguishing system, and along the length direction, the contact support, the contact system, the arc extinguishing system, and the terminal assembly are arranged linearly from the direction close to the axis of rotation away from the axis of rotation.

[0012] In one possible implementation, the phase pole unit further includes a housing, the contact support is rotatably mounted on the housing via the rotating shaft, the contact support is provided with a connecting shaft, the axis of the connecting shaft is parallel to and spaced apart from the axis of the rotating shaft, and the two ends of the transmission member are respectively passed through the connecting shafts of two adjacent contact supports.

[0013] In one possible implementation, the contact system includes a moving contact and a stationary contact, wherein the contact supports a driving connection with the moving contact to drive the moving contact to rotate relative to the stationary contact, and the rotation plane of the moving contact is parallel to the height direction and the length direction.

[0014] In one possible implementation, the terminal assembly includes an input terminal and an output terminal, which are spaced apart along the width direction. The input terminal is connected to the stationary contact, and the output terminal is connected to the moving contact.

[0015] In one possible implementation, the phase unit further includes an inlet busbar and an outlet busbar. The inlet terminal is connected to the stationary contact through the inlet busbar, and the outlet terminal is connected to the moving contact through the outlet busbar. The plate surfaces of the inlet busbar and the outlet busbar are perpendicular to each other.

[0016] In one possible implementation, there are multiple incoming terminals and multiple outgoing terminals. The multiple incoming terminals are arranged side by side along the height direction and connected to the incoming busbar. The multiple outgoing terminals are arranged side by side along the height direction and connected to the outgoing busbar.

[0017] In one possible implementation, the stationary contact is a plate-shaped structure, the plate surface of the incoming busbar and the plate surface of the plate-shaped structure are coplanar, the plate surface of the outgoing busbar is parallel to the length direction, and the plate surface of the outgoing busbar is parallel to the height direction.

[0018] In one possible implementation, the incoming terminal and the outgoing terminal have openings along the length direction away from the contact system, the openings being used for insertion into the busbar of the power supply system, and the openings extending along the height direction.

[0019] In one possible implementation, the arc-extinguishing system is located between the moving contact and the incoming terminal along the length direction, the air inlet of the arc-extinguishing system corresponds to the moving contact and the stationary contact, and the air outlet of the arc-extinguishing system corresponds to the exhaust channel between the incoming terminal and the outgoing terminal.

[0020] As one possible implementation, the phase pole unit further includes an anti-ionization structure for cooperating with the arc extinguishing system to achieve arc extinguishing. The anti-ionization structure is located between the arc extinguishing system and the incoming terminal along the length direction. The air inlet of the anti-ionization structure corresponds to the air outlet of the arc extinguishing system, and the air outlet of the anti-ionization structure corresponds to the exhaust channel.

[0021] A second aspect of this application provides a power supply system including a distribution cabinet and the aforementioned switches. The distribution cabinet includes a cabinet body and multiple busbars disposed within the cabinet body. The openings of the multiple switches are correspondingly arranged with and plugged into the multiple busbars. When the switches are installed in the distribution cabinet, their width direction is consistent with the width direction of the cabinet body, their length direction is consistent with the depth direction of the cabinet body, and their height direction is consistent with the height direction of the cabinet body. The multiple switches are arranged along the width direction of the cabinet body. This switch can reduce the size occupied by the switches in the width direction, thereby improving the internal space utilization of the distribution cabinet.

[0022] As one possible implementation, when the switch further includes an operating handle, the operating handle is driven to move up and down along the height direction of the cabinet.

[0023] The beneficial effects of the embodiments of this application include: The switch includes multiple phase pole units, each phase pole unit including a contact support that rotates around the axis of a rotating shaft. The axis of the rotating shaft extends along the width direction, and the multiple phase pole units are arranged along the height direction. The multiple phase pole units also extend along the length direction from near the rotating shaft to away from the rotating shaft. The length direction, width direction, and height direction are all perpendicular to each other. In the structural design of the switch provided in this application, the multiple phase pole units are arranged side-by-side along the height direction, and the width direction only needs to accommodate the contact support, rotating shaft, and linkage components. Therefore, the size occupied by the switch in the width direction can be reduced, thereby improving the internal space utilization of the distribution cabinet and making it suitable for applications where the width space of the distribution cabinet is limited. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is one of the structural schematic diagrams of the switch provided in the embodiments of this application; Figure 2 This is a second schematic diagram of the structure of the switch provided in the embodiments of this application; Figure 3 This is the third schematic diagram of the switch provided in the embodiments of this application; Figure 4 This is the fourth schematic diagram of the switch provided in the embodiments of this application; Figure 5 This is a schematic diagram of the conductive circuit of the switch provided in an embodiment of this application.

[0026] Icons: 100-Switch; 10-Operating handle; 20-Phase unit; 21-Contact support; 211-Connecting shaft; 212-Transmission component; 22-Housing; 221-Rotating shaft; 23-Moving contact; 24-Stationary contact; 25-Incoming terminal; 26-Outgoing terminal; 27-Incoming busbar; 28-Outgoing busbar; 29-Arc extinguishing system; 291-Ionization elimination structure; x-Length direction; y-Width direction; z-Height direction. Detailed Implementation

[0027] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. The described embodiments are only some embodiments of this application, not all embodiments. Similar reference numerals and letters in the following drawings indicate similar items. Once an item is defined in one drawing, it does not need to be further defined in other drawings.

[0028] The terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing this application and should not be construed as limiting this application. The terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0029] Unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to connections within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0030] Please refer to the reference. Figures 1 to 5 This application provides a switch 100, including multiple phase pole units 20. Each phase pole unit 20 includes a contact support 21, which rotates around the axis of a rotating shaft 221. The axis of the rotating shaft 221 extends along the width direction y, and the multiple phase pole units 20 are arranged along the height direction z. The multiple phase pole units 20 extend along the length direction x from near the rotating shaft 221 to away from the rotating shaft 221, wherein the length direction x, the width direction y, and the height direction z are mutually perpendicular. This switch 100 can reduce the size occupied by the switch 100 in the width direction y, thereby improving the internal space utilization of the distribution cabinet.

[0031] It should be noted that the switch 100 includes multiple phase pole units 20, wherein each phase pole unit 20 includes a contact support 21, which rotates around the axis of a rotating shaft 221. The axis of the rotating shaft 221 extends along the width direction y, that is, the contact support 21 can rotate around the width direction y. Multiple phase pole units 20 extend along the length direction x, that is, the contact support 21, contact system and arc extinguishing system 29 inside the phase pole unit 20 are arranged linearly along the length direction x. In addition, along the length direction x, the contact support 21, contact system and arc extinguishing system 29 are arranged linearly from the direction closer to the rotating shaft 221 to the direction farther away from the rotating shaft 221. Multiple phase pole units 20 are arranged side by side along the height direction z, that is, multiple phase pole units 20 are stacked along the height direction z to avoid increasing the size occupied in the width direction y.

[0032] In manual operation, the operator can rotate the operating handle 10 of the toggle switch 100 around the width direction y to drive the contact support 21 to rotate around the axis of the rotating shaft 221, thereby switching between the open and closed states. At the same time, the operating handle 10 can also be driven and connected to multiple phase pole units 20 through a linkage mechanism (such as a linkage, gear set, etc.). Since the axis of the rotating shaft 221 extends along the width direction y, the driving force of the operating handle 10 can be evenly transmitted to each phase pole unit 20 along the height direction z, without the need to set additional transmission components in the width direction y to avoid increasing the width dimension.

[0033] The aforementioned multiple phase pole units 20 extend along the length direction x, with each phase pole unit 20 corresponding to one phase circuit, such as phase A, phase B, and phase C. Furthermore, the multiple phase pole units 20 are arranged side-by-side along the height direction z, for example, vertically, with a safe insulation distance maintained between adjacent phase pole units 20, for example, an insulation distance ≥ 5mm, to meet electrical safety standards. Each phase pole unit 20 has an independent structure and can be connected to the operating handle 10 of the switch via a linkage mechanism. This ensures that a failure in a single phase pole unit 20 will not affect the normal operation of other phase pole units 20, and the compact arrangement in the height direction z achieves multi-phase circuit protection while avoiding increasing the product size in the width direction y.

[0034] In traditional switches, multiple phase poles are usually arranged side-by-side along the width direction. For example, three phase poles are arranged sequentially in the width direction. The number of phase poles directly determines the width of the switch. For example, if the width of each phase pole is 70mm, then the width of a three-phase switch is at least 210mm, which occupies a large width. To solve the above problem, the switch 100 provided in this application designs multiple phase pole units 20 to be arranged side-by-side along the height direction z. The width direction y only needs to accommodate the contact support 21, the rotating shaft 221, and the linkage components, etc. Therefore, the size of the switch 100 in the width direction y can be reduced, thereby improving the internal space utilization of the distribution cabinet and making it suitable for application scenarios where the width space of the distribution cabinet is limited.

[0035] In addition, multiple phase pole units 20 are arranged side by side along the height direction z, and the physical separation between each phase pole unit 20 is clear. When a phase pole unit 20 fails (such as burnt contact system or failure of arc extinguishing system 29), the phase pole unit 20 can be disassembled separately for maintenance without disassembling the entire switch 100, thus shortening the maintenance time. At the same time, the arrangement along the height direction z ensures that the wiring terminals of each phase pole do not interfere with each other, providing ample space for wiring operations and a lower wiring error rate.

[0036] As one possible implementation method, such as Figures 2 to 4As shown, the switch 100 also includes an operating handle 10, which is drivenly connected to multiple phase pole units 20 to drive the multiple phase pole units 20 to move synchronously. The operating handle 10 and the phase pole units 20 are arranged along the length direction x to facilitate manual operation by the user. For example, in this embodiment, the operating handle 10 and one of the phase pole units 20 are arranged in a straight line. Of course, in other embodiments, the operating handle 10 may also be located between two adjacent phase pole units 20 along the height direction z. For example, in this embodiment, the rotation axis of the operating handle 10 extends along the width direction y. Of course, in other embodiments, the rotation axis of the operating handle 10 may also extend along the length direction x or the height direction z, as long as the operating handle 10 can drive the contact support 21 to rotate around the axis of the rotating shaft 221. No specific limitation is made here. As one possible implementation, such as... Figures 2 to 4 As shown, the phase unit 20 also includes a terminal assembly located on one side of the contact support 21 in the length direction x, and the operating handle 10 located on the other side of the contact support 21 in the length direction x. As one possible implementation, such as... Figures 2 to 4 As shown, the operating handle 10 is driven to one of the phase pole units 20, and the contact supports 21 of two adjacent phase pole units 20 are driven to be connected through the transmission member 212, so that the operating handle 10 drives multiple phase pole units 20 to move synchronously.

[0037] It should be noted that the switch 100 also includes an operating handle 10. The operating handle 10 and one of the phase pole units 20 (such as phase A) are arranged along the length direction x, that is, the operating handle 10 is located on the extension line of the length direction x of the phase pole unit 20. The arrangement of the two can be collinear in the length direction x, forming an integrated layout of "operating handle 10-phase pole unit 20". Furthermore, the operating handle 10 rotates around the width direction y, and its driving force is transmitted to each phase pole unit 20 along the height direction z. The transmission path is shorter and more uniform, which can avoid the driving force loss caused by the transmission across the width direction in traditional switches. Ensure that each phase pole unit 20 operates synchronously; and the operating handle 10 can be directly driven to the contact support 21 of the phase pole unit 20 through the output shaft. The connection between the operating handle 10 and other phase pole units 20 can be achieved by setting a transmission component 212 (such as a connecting rod or transmission shaft) between the contact supports 21 of two adjacent phase pole units 20. The transmission component 212 can be arranged along the height direction z on the side of the contact support 21 of the phase pole unit 20 to avoid occupying too much width dimension. The length of the transmission component 212 in the height direction z is adapted to the spacing between two adjacent phase pole units 20.

[0038] When the operator rotates the operating handle 10 around the width direction y, the operating handle 10 can directly drive the contact support 21 of the connected phase unit 20 to move (such as closing the contact system); when the contact support 21 of the phase unit 20 moves, the driving force or motion can be transmitted to the contact support 21 of the adjacent phase unit 20 through the transmission component 212, so that the contact supports 21 of all phase units 20 can move in the same direction and with the same amplitude.

[0039] In one possible implementation, the phase unit 20 also includes a contact system and an arc-extinguishing system 29. Along the length direction x, the contact support 21, contact system, arc-extinguishing system 29, and terminal assembly are arranged linearly from near the rotating shaft 221 to away from the rotating shaft 221, forming a sequential arrangement of "contact support 21 - contact system - arc-extinguishing system 29 - terminal assembly" along the length direction x. This linear layout physically separates the terminal wiring area from the operating transmission area, avoiding interference with the operating components during wiring, while reserving independent wiring space for the terminal assembly to conform to the functional logic of circuit switching.

[0040] As one possible implementation method, such as Figures 1 to 4 As shown, the phase pole unit 20 also includes a housing 22. The contact support 21 is rotatably mounted on the housing 22 via a rotating shaft 221. A connecting shaft 211 is provided on the contact support 21. The axis of the connecting shaft 211 is parallel to and spaced apart from the axis of the rotating shaft 221. The two ends of the transmission member 212 are respectively passed through the connecting shaft 211 of two adjacent contact supports 21.

[0041] It should be noted that the phase unit 20 also includes a housing 22, on which a rotating shaft 221 is provided. The shaft hole on the contact support 21 cooperates with the rotating shaft 221 to form a kinematic pair in which the contact support 21 rotates around the rotating shaft 221. Alternatively, the shaft hole on the contact support 21 can be fixedly fitted with the rotating shaft 221 to form an integral unit. Or, in other embodiments, the contact support 21 and the rotating shaft 221 can be integrally formed and rotatably mounted on the housing 22 via the rotating shaft 221. The connecting shaft 211 is located at the non-rotational center of the contact support 21 along the width direction y. The axis of the connecting shaft 211 is parallel to the axis of the rotating shaft 221 and they maintain a certain distance. This parallel and spaced layout allows the connecting shaft 211 to make arc motion when the contact support 21 rotates around the axis of the rotating shaft 221, providing a stable driving force output point for the transmission component 212. The transmission component 212 has openings at both ends. There is a through hole that matches the connecting shaft 211, so that the two ends of the transmission member 212 can be respectively inserted into the connecting shaft 211 of the two adjacent contact supports 21, forming a hinged structure of "connecting shaft 211-transmission member 212". When the operating handle 10 drives the contact support 21 of the phase unit 20 connected to it to rotate around the axis of the rotating shaft 221, the connecting shaft 211 of the contact support 21 will make an arc motion with the rotating shaft 221 as the center. Through the transmission member 212, the connecting shaft 211 of the adjacent phase unit 20 is pushed to move synchronously. Since the rotating shaft 221 of the adjacent phase unit 20 and the connecting shaft 211 are parallel and spaced in the same direction, they can form a parallelogram mechanism together, so that the rotation angle of the two adjacent contact supports 21 can be kept completely consistent, and thus all the contact supports 21 of the phase unit 20 can be operated in the same direction and with the same amplitude.

[0042] As one possible implementation method, such as Figures 2 to 5 As shown, the contact system includes a moving contact 23 and a stationary contact 24. The contact support 21 is driven to the moving contact 23 to drive the moving contact 23 to rotate relative to the stationary contact 24. The rotation plane of the moving contact 23 is parallel to the height direction z and the length direction x.

[0043] It should be noted that the contact system includes a moving contact 23 and a stationary contact 24. The rotation plane of the moving contact 23 is parallel to the height direction z and the length direction x. That is, the plane on which its rotation trajectory lies extends along the height direction z and the length direction x, so that the driving force of the contact support 21 can be efficiently converted into the rotational torque of the moving contact 23, thereby driving the moving contact 23 to rotate toward the stationary contact 24 to close the circuit or to rotate away from the stationary contact 24 to open the circuit.

[0044] Traditional switches require a large space in the width direction, which increases the width of a single pole, conflicting with the narrow width design goal of the switch. To solve the above problem, in this application, the moving contact 23 rotates in the plane containing the height direction z and the length direction x, and its rotation trajectory unfolds along the height direction z and the length direction x. The width direction y only needs to accommodate the thickness of the moving contact 23 itself, without the need to reserve extra space to avoid it, thereby reducing the width of a single phase pole unit 20 and further improving the space utilization of the distribution cabinet.

[0045] As one possible implementation method, such as Figures 2 to 5 As shown, the terminal assembly includes an inlet terminal 25 and an outlet terminal 26. The inlet terminal 25 and the outlet terminal 26 are spaced apart along the width direction y. The inlet terminal 25 is connected to the stationary contact 24, and the outlet terminal 26 is connected to the moving contact 23.

[0046] It should be noted that the terminal assembly includes an incoming terminal 25 and an outgoing terminal 26. The incoming terminal 25 and the outgoing terminal 26 are spaced apart along the width direction y, and the spacing must meet electrical safety standards. The incoming terminal 25 is connected to the stationary contact 24, and the outgoing terminal 26 is connected to the moving contact 23 to form a conductive circuit of "terminal-stationary contact 24-moving contact 23-outgoing terminal 26".

[0047] Therefore, when the switch 100 switches from the open state to the closed state, the contact support 21 drives the moving contact 23 to rotate toward the stationary contact 24 and maintain reliable contact with the stationary contact 24. Current flows in from the incoming terminal 25, and is conducted through the stationary contact 24 and the moving contact 23 to the outgoing terminal 26, completing the circuit connection. When the switch 100 switches from the closed state to the open state, the contact support 21 drives the moving contact 23 to rotate away from the stationary contact 24. The two separate to form a reliable opening distance, the current path is interrupted, and the incoming terminal 25 and the outgoing terminal 26 are in an insulated state.

[0048] As one possible implementation method, such as Figures 2 to 5 As shown, the phase unit 20 also includes an inlet busbar 27 and an outlet busbar 28. The inlet terminal 25 is connected to the stationary contact 24 via the inlet busbar 27, and the outlet terminal 26 is connected to the moving contact 23 via the outlet busbar 28. The surfaces of the inlet busbar 27 and the outlet busbar 28 are perpendicular to each other. The inlet terminal 25 and the inlet busbar 27 are perpendicular to each other, and the outlet terminal 26 and the outlet busbar 28 are parallel to each other. In one possible implementation, there are multiple inlet terminals 25 and multiple outlet terminals 26. Multiple inlet terminals 25 are arranged side by side along the height direction z and connected to the inlet busbar 27, and multiple outlet terminals 26 are arranged side by side along the height direction z and connected to the outlet busbar 28.

[0049] It should be noted that the phase unit 20 also includes an incoming busbar 27 and an outgoing busbar 28. Multiple incoming terminals 25 (such as 2 to 4, each corresponding to its own phase unit 20) are arranged side by side along the height direction z, and the multiple incoming terminals 25 are connected to the stationary contact 24 through the incoming busbar 27. Multiple outgoing terminals 26 (such as 2 to 4, each corresponding to its own phase unit 20) are arranged side by side along the height direction z, and the multiple outgoing terminals 26 are connected to the moving contact 23 through the outgoing busbar 28. This arrangement ensures that the width of a single set of terminals is determined only by the width of a single terminal, avoiding the expansion of the width of the phase unit 20 due to the increase in the number of terminals.

[0050] The surface of the incoming busbar 27 and the surface of the outgoing busbar 28 are perpendicular to each other. For example, the surface of the incoming busbar 27 extends along the plane containing the length direction x and the width direction y. The connection between the incoming busbar 27 and the incoming terminal 25 and the stationary contact 24 can be provided with a bend according to actual needs, such as... Figure 5 As shown, the incoming busbar 27 is connected to the incoming terminal 25 via an L-shaped adapter plate. The incoming busbar 27 and the incoming terminal 25 can also be integrally formed. The plate surface of the outgoing busbar 28 extends along the plane containing the length direction x and the height direction z. The connection between the outgoing busbar 28 and the moving contact 23 and the outgoing terminal 26 can be provided with a bend or a flexible connecting wire according to actual needs, so as to adapt to the layout design of the contact system and the terminal area.

[0051] As one possible implementation method, such as Figure 5 As shown, the stationary contact 24 has a plate-like structure. The plate surface of the incoming busbar 27 and the plate surface of the plate-like structure are coplanar. The plate surface of the outgoing busbar 28 is parallel to the length direction x and the plate surface of the outgoing busbar 28 is parallel to the height direction z.

[0052] It should be noted that in this embodiment, the stationary contact 24 is a plate-shaped structure, and the plate surface of the incoming busbar 27 and the plate-shaped structure are coplanar, so that the end of the incoming busbar 27 near the stationary contact 24 can be easily connected to the stationary contact 24. When the moving contact 23 rotates to contact the stationary contact 24, the contact point of the moving contact 23 can be completely fitted with the contact surface of the stationary contact 24 to ensure reliable contact between the two when closing. The contact area between the two is larger, the current density per unit area is reduced, which can further suppress the temperature rise when closing and improve the service life of the contact.

[0053] As one possible implementation method, such as Figures 2 to 4As shown, the phase unit 20 also includes an arc extinguishing system 29. The arc extinguishing system 29 is located between the moving contact 23 and the incoming terminal 25 along the length direction x. The air inlet of the arc extinguishing system 29 corresponds to the moving contact 23 and the stationary contact 24, and the air outlet of the arc extinguishing system 29 corresponds to the exhaust channel between the incoming terminal 25 and the outgoing terminal 26, so that the arc generated when the moving contact 23 and the stationary contact 24 are opened can smoothly enter the arc extinguishing system 29 and be extinguished by the arc extinguishing system 29, so as to avoid the arc from spreading and affecting the safety of the product.

[0054] As one possible implementation method, such as Figures 2 to 4 As shown, the phase pole unit 20 also includes a deionization structure 291 for working with the arc extinguishing system 29 to extinguish the arc. The deionization structure 291 is located between the arc extinguishing system 29 and the incoming terminal 25 along the length direction x. The air inlet of the deionization structure 291 corresponds to the air outlet of the arc extinguishing system 29, and the air outlet of the deionization structure 291 corresponds to the exhaust channel, so as to form a linear arrangement of "contact system - arc extinguishing system 29 - deionization structure 291 - terminal" to deionize the high-temperature gas generated by the break and achieve a better deionization effect.

[0055] For example, the incoming terminal 25 and the outgoing terminal 26 have openings along the length direction x away from the contact system for plugging into the busbar of the power supply system. These openings may extend along the height direction z.

[0056] This application embodiment also provides a power supply system, including a distribution cabinet and the aforementioned switch 100. The distribution cabinet includes a cabinet body and multiple busbars disposed within the cabinet body. The openings of the multiple switches 100 are correspondingly arranged with and plugged into the multiple busbars to connect the switches 100 to the power supply system, thereby providing electrical protection for the power supply system through the switches 100. As one possible implementation, when the switches 100 are installed in the distribution cabinet, the width direction y is consistent with the width direction of the cabinet body, the length direction x is consistent with the depth direction of the cabinet body, and the height direction z is consistent with the height direction of the cabinet body. The multiple switches 100 are arranged along the width direction of the cabinet body. Since the switches 100 can reduce their space occupation in the width direction y, more switches 100 can be installed in a cabinet with limited horizontal space. When the switch 100 also includes an operating handle 10, the operating handle 10 of the switch 100 using the above assembly method can move up and down along the height direction of the cabinet body when driven by the user, making it convenient for the user to drive the operating handle 10. Since the structure and beneficial effects of switch 100 have been described in detail in the foregoing embodiments, they will not be repeated here.

[0057] The above description is merely an optional embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

[0058] It should also be noted that the various specific technical features described in the above embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this application will not describe the various possible combinations separately.

Claims

1. A switch, characterized in that, It includes multiple phase pole units (20), each of the phase pole units (20) including a contact support (21) that rotates about the axis of a rotating shaft (221) that extends along the width direction (y), and the multiple phase pole units (20) are arranged along the height direction (z). The multiple phase pole units (20) extend along the length direction (x) from near the rotating shaft (221) to away from the rotating shaft (221), wherein the length direction (x), the width direction (y), and the height direction (z) are perpendicular to each other.

2. The switch according to claim 1, characterized in that, It also includes an operating handle (10), which is drivenly connected to a plurality of the phase pole units (20), and the operating handle (10) and the phase pole units (20) are arranged along the length direction (x).

3. The switch according to claim 2, characterized in that, The operating handle (10) and one of the phase pole units (20) are arranged in a straight line.

4. The switch according to claim 2, characterized in that, The rotation axis of the operating handle (10) extends along the width direction (y).

5. The switch according to claim 2, characterized in that, The phase pole unit (20) further includes a terminal assembly located on one side of the contact support (21) along the length direction (x), and the operating handle (10) located on the other side of the contact support (21) along the length direction (x).

6. The switch according to claim 2, characterized in that, The operating handle (10) is driven to one of the phase pole units (20), and the contact supports (21) of two adjacent phase pole units (20) are driven to be connected through a transmission member (212).

7. The switch according to claim 5, characterized in that, The phase pole unit (20) further includes a contact system and an arc extinguishing system (29), and along the length direction (x), the contact support (21), the contact system, the arc extinguishing system (29) and the terminal assembly are arranged linearly from the direction close to the rotating shaft (221) to the direction away from the rotating shaft (221).

8. The switch according to claim 6, characterized in that, The phase pole unit (20) also includes a housing (22). The contact support (21) is rotatably mounted on the housing (22) via the rotating shaft (221). A connecting shaft (211) is provided on the contact support (21). The axis of the connecting shaft (211) is parallel to and spaced apart from the axis of the rotating shaft (221). The two ends of the transmission member (212) are respectively passed through the connecting shafts (211) of two adjacent contact supports (21).

9. The switch according to claim 7, characterized in that, The contact system includes a moving contact (23) and a stationary contact (24). The contact support (21) is driven to connect with the moving contact (23) to drive the moving contact (23) to rotate relative to the stationary contact (24). The rotation plane of the moving contact (23) is parallel to the height direction (z) and the length direction (x).

10. The switch according to claim 9, characterized in that, The terminal assembly includes an incoming terminal (25) and an outgoing terminal (26), the incoming terminal (25) and the outgoing terminal (26) are spaced apart along the width direction (y), the incoming terminal (25) is connected to the stationary contact (24), and the outgoing terminal (26) is connected to the moving contact (23).

11. The switch according to claim 10, characterized in that, The phase unit (20) further includes an inlet busbar (27) and an outlet busbar (28). The inlet terminal (25) is connected to the stationary contact (24) through the inlet busbar (27), and the outlet terminal (26) is connected to the moving contact (23) through the outlet busbar (28). The plate surface of the inlet busbar (27) and the plate surface of the outlet busbar (28) are perpendicular to each other.

12. The switch according to claim 11, characterized in that, The number of the incoming terminal (25) and the outgoing terminal (26) is multiple. The multiple incoming terminals (25) are arranged side by side along the height direction (z) and connected to the incoming busbar (27). The multiple outgoing terminals (26) are arranged side by side along the height direction (z) and connected to the outgoing busbar (28).

13. The switch according to claim 11, characterized in that, The stationary contact (24) is a plate-shaped structure. The plate surface of the incoming busbar (27) and the plate surface of the plate-shaped structure are coplanar. The plate surface of the outgoing busbar (28) is parallel to the length direction (x) and the plate surface of the outgoing busbar (28) is parallel to the height direction (z).

14. The switch according to claim 10, characterized in that, The incoming terminal (25) and the outgoing terminal (26) have openings that are away from the contact system along the length direction (x), the openings being used for plugging into the busbar of the power supply system, and the openings extending along the height direction (z).

15. The switch according to claim 10, characterized in that, Along the length direction (x), the arc extinguishing system (29) is located between the moving contact (23) and the incoming terminal (25). The air inlet of the arc extinguishing system (29) corresponds to the moving contact (23) and the stationary contact (24), and the air outlet of the arc extinguishing system (29) corresponds to the exhaust channel between the incoming terminal (25) and the outgoing terminal (26).

16. The switch according to claim 15, characterized in that, The phase pole unit (20) also includes an anti-ionization structure (291) for cooperating with the arc extinguishing system (29) to achieve arc extinguishing. Along the length direction (x), the anti-ionization structure (291) is located between the arc extinguishing system (29) and the incoming terminal (25). The air inlet of the anti-ionization structure (291) corresponds to the air outlet of the arc extinguishing system (29), and the air outlet of the anti-ionization structure (291) corresponds to the exhaust channel.

17. A power supply system, characterized in that, The device includes a power distribution cabinet and a switch (100) as described in any one of claims 1 to 16. The power distribution cabinet includes a cabinet body and a plurality of busbars disposed within the cabinet body. The openings of the plurality of switches (100) are arranged in a one-to-one correspondence with the plurality of busbars and are plugged in. When the switches (100) are installed in the power distribution cabinet, the width direction (y) is consistent with the width direction of the cabinet body, the length direction (x) is consistent with the depth direction of the cabinet body, the height direction (z) is consistent with the height direction of the cabinet body, and the plurality of switches (100) are arranged along the width direction of the cabinet body.

18. The power supply system according to claim 17, characterized in that, When the switch (100) also includes an operating handle (10), the operating handle (10) is driven to move up and down along the height direction of the cabinet.

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