Electric switch with at least two poles

Abstract

The invention provides an electric switch with at least two poles, which comprises an electric switch body and a driving mechanism, the electric switch body comprises an operating mechanism, and the driving mechanism drives the operating mechanism to move back and forth along the X-axis direction to enable the electric switch to realize connection or disconnection of electricity. The driving mechanism is arranged in front of the operation mechanism in the X-axis extending direction, and the projection A1 of the driving mechanism in the X-axis direction and the projection A2 of the operation mechanism in the X-axis direction at least partially coincide. The driving mechanism is arranged in front of the operating mechanism in a submersible mode, the height size of the electric switch is much lower than that of an electric switch, located above a handle of the electric switch operating mechanism, of a conventional driving mechanism, and the superiority of the installation size of the electric switch in a compact power distribution cabinet and an energy storage PCS cabinet is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of low-voltage electrical technology, and more specifically to an electrical switch with at least two poles. Background Technology

[0002] With the development of science and technology, the demand for electricity in production and daily life will continue to increase, which will also place increasingly stringent requirements on the compactness and reliability of power distribution systems.

[0003] Low-voltage switchgear plays a vital role in people's production and daily life power distribution systems, integrating various power distribution components and efficiently driving the electrical and mechanical operation of these components. Therefore, the size and installation / operation dimensions of low-voltage circuit breakers also affect the feasibility of their installation and layout within low-voltage switchgear.

[0004] Furthermore, with the development of the energy storage industry, high-power, high-efficiency, and compact PCS cabinets have placed more stringent requirements on the external dimensions and installation dimensions of the low-voltage components inside the cabinet.

[0005] However, in the low-voltage electrical appliance industry, the internal space of molded case circuit breakers, including the mechanism, trip unit, and auxiliary contacts, is very compact. Conventional molded case circuit breakers typically have an electrically operated mechanism module located directly above the circuit breaker's opening and closing handle. This significantly increases the product's height, which can lead to obvious limitations in the installation of molded case circuit breakers in applications with stringent requirements for installation depth, such as compact low-voltage distribution cabinets or energy storage PCS cabinets.

[0006] The drive mechanism is an electric device used to control the closing and opening of circuit breakers. It can realize remote control of the opening and closing actions of circuit breakers and is suitable for places with a high degree of automation.

[0007] In summary, a low-cost, compact, and high-efficiency drive mechanism solution can provide a superior solution and method for miniaturizing low-voltage power distribution and energy storage PCS cabinets, effectively addressing one of the industry's pain points in this area. Summary of the Invention

[0008] Based on the above background, the purpose of this invention is to solve the layout problem of the electric switch drive mechanism. It proposes a submerged space in front of the operating mechanism along the X-axis extension direction, which makes full use of the internal space of the electric switch, realizes the rational layout of each component, can significantly reduce the height of the electric switch, and optimizes the installation depth space.

[0009] The technical solution adopted in this invention is: an electric switch with at least two poles, including an electric switch body and a driving mechanism. The electric switch body includes an operating mechanism. The driving mechanism drives the operating mechanism to move back and forth along the X-axis direction to enable the electric switch to connect or disconnect electricity. The driving mechanism is located in front of the operating mechanism along the X-axis extension direction. The projection A of the driving mechanism along the X-axis direction at least partially coincides with the projection A of the operating mechanism along the X-axis direction.

[0010] In the above technical solution, part of the drive mechanism is set in the submerged space along the X-axis extension direction of the operating mechanism, which realizes that the drive mechanism is arranged inside the electrical switch body, making full use of the internal space of the electrical switch and realizing a reasonable layout of each component. This can reduce the height of the electrical switch to a certain extent, which is beneficial for the installation and use of the electrical switch in a compact distribution cabinet or energy storage PCS cabinet.

[0011] Preferably, the projection of projection A along the Y-axis direction completely covers projection A.

[0012] In the above technical solution, the entire structure of the drive mechanism is set in the recessed space along the X-axis extension direction of the operating mechanism, realizing the arrangement of the entire drive mechanism inside the electrical switch body. Without increasing the height of the electrical switch, the entire structure of the drive mechanism is integrated, making full use of the internal space of the electrical switch, significantly reducing the height of the electrical switch, and making it more conducive to the installation and use of the electrical switch in compact distribution cabinets or energy storage PCS cabinets.

[0013] Preferably, the operating mechanism includes an energy storage component and a lever component, and the driving mechanism is disposed in front of the energy storage component and / or the lever component along the X-axis extension direction, and the projection of the energy storage component and / or the lever component and the driving mechanism along the X-axis direction at least partially overlaps.

[0014] In the above technical solution, the core components of the operating mechanism include the energy storage component and the lever component. A portion of the drive mechanism is located in front of the core component of the operating mechanism along the X-axis extension direction. This clarifies that the drive mechanism portion is arranged in the submerged space in front of the main body of the operating mechanism, making full use of the internal space of the electric switch and reducing the height of the electric switch to a certain extent.

[0015] Preferably, the operating mechanism includes a mechanism handle, and the driving mechanism is sleeved on the mechanism handle. The highest point of the driving mechanism along the Z-axis is not higher than the highest point of the mechanism handle. The driving mechanism drives the mechanism handle to move back and forth along the X-axis so that the electric switch can realize the connection or disconnection of electricity.

[0016] In the above technical solution, the mechanism handle serves as the topmost component of the operating mechanism or the electric switch and is linked with the outside. The drive mechanism is sleeved on the mechanism handle of the operating mechanism, and its highest point along the Z-axis is not higher than the highest point of the mechanism handle. This can effectively utilize all the reasonable space located in front of the operating mechanism and at or below the highest position of the operating mechanism or the electric switch, thereby significantly reducing the height of the electric switch.

[0017] Preferably, the operating mechanism includes a linkage assembly, the driving mechanism is disposed in front of the linkage assembly along the X-axis extension direction, and the lowest point of the driving mechanism along the Z-axis direction is not lower than the lowest point of the linkage assembly along the Z-axis direction.

[0018] In the above technical solution, the linkage assembly is the lowest part of the operating mechanism and is linked with the moving contact. The lowest point of the driving mechanism along the Z-axis is not lower than the lowest point of the linkage assembly along the Z-axis. This can effectively utilize all reasonable space located in front of the operating mechanism and at or above the lowest position of the operating mechanism, thereby significantly reducing the height of the electric switch.

[0019] Preferably, the electrical switch body further includes a moving contact and a stationary contact. The driving mechanism is disposed above the moving contact and / or the stationary contact along the Z-axis extension direction, and the projection of the driving mechanism and the moving contact and / or the stationary contact along the Z-axis direction at least partially overlaps. The driving mechanism drives the operating mechanism to reciprocate along the X-axis direction to cause the moving contact to contact or disconnect with the stationary contact, thereby realizing the connection or disconnection of electricity.

[0020] In the above technical solution, the electric switch is an isolating switch. The moving contact and the stationary contact of the electric switch can adopt a shorter structure. Therefore, there will be space directly above the moving contact and the stationary contact along the Z-axis to accommodate the driving mechanism, effectively utilizing the reasonable internal space of the electric switch and significantly reducing the height of the electric switch.

[0021] Preferably, the driving mechanism is disposed above the moving contact and / or the stationary contact of adjacent poles along the Z-axis extension direction, and the projection of the driving mechanism and the moving contact and / or the stationary contact along the Z-axis direction at least partially coincides.

[0022] In the above technical solution, the electric switch is an isolating switch. The moving contact and the stationary contact of the adjacent poles can both adopt a shorter structure. Therefore, there will be space above the moving contact and the stationary contact of the adjacent poles along the Z-axis to accommodate the driving mechanism, which makes more effective use of the reasonable space inside the electric switch.

[0023] Preferably, the electrical switch body further includes an electromagnetic device, which is sleeved on the stationary contact, and the driving mechanism is disposed above the electromagnetic device along the Z-axis extension direction, and the projection of the driving mechanism and the electromagnetic device along the Z-axis direction at least partially overlaps.

[0024] In the above technical solution, the electromagnetic device of the electric switch can abut against the top of the moving contact and apply pressure to improve the high current withstand capability of the electric switch. After the electromagnetic device is sleeved on the stationary contact, there is still space above along the Z-axis extension direction to accommodate the drive mechanism, which makes more effective use of the reasonable internal space of the electric switch.

[0025] Preferably, the electrical switch body further includes an insulating housing, the operating mechanism is disposed inside the insulating housing and partially penetrates the insulating housing, the driving mechanism is sleeved on the operating mechanism, and the driving mechanism is disposed inside the insulating housing and / or at the top along the Z-axis direction.

[0026] In the above technical solution, after the drive mechanism is sleeved on the operating mechanism, it can be installed inside or on top of the insulating shell according to the user's needs. The shell can be opened directly to disassemble or the drive mechanism can be disassembled directly, resulting in high assembly efficiency and low production cost.

[0027] Preferably, the drive mechanism is an electric drive mechanism and / or a manual drive mechanism.

[0028] In the above technical solution, the drive mechanism can be an electric drive mechanism, a manual drive mechanism, or an integrated electric and manual synchronous drive mechanism, which is convenient for users to choose and use, and the product has strong versatility.

[0029] Preferably, the drive mechanism includes at least a mounting plate and a power source, multi-stage gears, and a connecting rod fixed to the mounting plate. The connecting rod is sleeved on the operating mechanism and drives the operating mechanism to move back and forth along the X-axis.

[0030] In the above technical solution, the drive mechanism can drive the operating mechanism to move back and forth along the X-axis through a power source, multi-stage gears, and connecting rods, making the drive mechanism simple in structure and smooth and reliable in transmission.

[0031] Preferably, the power source is electric power, spring force, or human power, and the power source directly or indirectly drives the operating mechanism to reciprocate along the X-axis.

[0032] In the above technical solution, the drive mechanism can directly or indirectly drive the operating mechanism to reciprocate along the X-axis by electric power, spring force or human power, which is convenient for users to choose and use, and the product has strong versatility.

[0033] The beneficial effects of this invention are as follows:

[0034] 1. By placing the drive mechanism in front of the operating mechanism along the X-axis, this application makes full use of the recessed space left in front of the operating mechanism in the electrical switch structure. This allows all or part of the drive mechanism to be placed inside the electrical switch body, making full use of the internal space of the electrical switch and achieving a reasonable layout of each component. This can significantly reduce the height of the electrical switch, optimize the installation depth space, and make it easier for the electrical switch to be installed and used in compact distribution cabinets or energy storage PCS cabinets. The electrical switch of this application can save space in distribution boxes or energy storage PCS cabinets.

[0035] 2. The electric switch disclosed in this application has a modular and detachable drive mechanism installed inside the electric switch. The drive mechanism can be replaced after the cover is removed, which is convenient to operate and improves the convenience and speed of product operation and maintenance.

[0036] 3. Even when the electric operation mode fails, the electric switch of this application can still be manually operated by the operating handle of the operating mechanism to achieve power closing, ensuring timely power supply, reducing user complaints, and solving a major problem that traditional products have long failed to solve.

[0037] 4. The drive mechanism of this application has a simple structure, smooth and reliable transmission, high assembly efficiency, and low production cost.

[0038] 5. The extended operating handle of the electric switch in this application not only extends out of the insulating shell for convenient manual operation, but also saves more space, reduces the overall height of the electric switch, thereby reducing the size of the electric switch and realizing miniaturization of the electric switch. At the same time, it can also save the overall height of the distribution box and greatly improve the space utilization rate inside the distribution box. Attached Figure Description

[0039] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0040] Figure 1 A schematic diagram showing the positional structure of the drive mechanism and the operating mechanism of an electric switch with at least two poles;

[0041] Figure 2 A schematic diagram of a two-pole electrical switch in the open state;

[0042] Figure 3A schematic diagram of a two-pole electrical switch in the closed state;

[0043] Figure 4 This is a cross-sectional view of the structure of an electrical switch with at least two poles along the X-axis.

[0044] Figure 5 A schematic cross-sectional view of the structure of an electrical switch with at least two poles along the Y-axis. Figure 1 ;

[0045] Figure 6 A schematic cross-sectional view of the structure of an electrical switch with at least two poles along the Y-axis. Figure 2 ;

[0046] Figure 7 Schematic diagram of the mounting structure of a drive mechanism for an electrical switch with at least two poles. Figure 1 ;

[0047] Figure 8 Schematic diagram of the mounting structure of a drive mechanism for an electric switch with at least two poles. Figure 2 ;

[0048] Figure 9 A schematic diagram of the structure of a drive mechanism for an electrical switch with at least two poles;

[0049] Figure 10 A schematic diagram of the structure of a drive module for a drive mechanism of an electrical switch with at least two poles;

[0050] Figure 11 This is a schematic diagram of the structure of a sliding module for driving a drive mechanism of an electric switch with at least two poles.

[0051] Explanation of reference numerals in the attached figures

[0052] 1-Electric switch body, 11-Insulating shell, 111-Base, 112-Middle cover, 1121-Shell cavity, 11211-Cavity, 11212-Boss, 11213-Inner wall, 11214-Slot, 11215-Outer wall, 11216-Protrusion, 113-Top cover, 12-Moving contact, 121-Moving arc contact, 122-Moving main contact, 123-Shaft, 13-Stationary contact, 131-Stationary arc contact, 132-Stationary main contact, 133-Stationary busbar, 134-Stationary magnetic busbar, 14-Operating mechanism, 141-Mechanism handle, 142-Lever Components, 143-Energy Storage Component, 144-Linkage Component, 145-Support Component, 146-Extended Handle, 15-Electromagnetic Device, 151-Magnetic Yoke, 152-Armature, 153-Reed, 16-Arc Extinguishing Device, 161-Insulating Side Plate, 162-Arc Extinguishing Grid, 163-Gas Generating Component, 2-Drive Mechanism, 21-Drive Module, 211-Upper Bracket, 2111-Working Plate, 21111-Limiting Slot, 21112-Fixing Hole, 2112-Support Plate, 212-Lower Bracket, 213-Support Column, 214-Busset, 215-Motor, 2151 - Output end, 2152 Protective cover, 2153 Body, 216 Speed ​​reduction gear set, 2161 Gear shaft, 2162 Initial gear, 2163 Speed ​​reduction gear, 2164 Transmission gear, 2165 Output gear, 217 Drive output set, 2171 Output shaft, 2172 Drive cam, 2173 Shaft pin, 2174 Bearing, 2175 Compression spring, 2176 Top shaft, 218 Hand lever, 2181 Input lever, 2182 Output gear, 22 Sliding module, 221 Bracket, 2211 First bending plate, 22 12-Second bending plate, 2213-Third bending plate, 2214-Fourth bending plate, 2215-Fifth bending plate, 222-Guide rail, 223-First slider, 2231-Slider base, 22311-Railway groove, 22312-Hanging platform, 2232-First guide plate, 22321-Working end face, 22332-Avoidance end face, 2233-Second guide plate, 22331-Working end face, 22332-Avoidance end face, 224-Second slider, 2241-Rail guide hole groove, 2242-Handle opening, 225-Slide plate, 226-Return spring Detailed Implementation

[0053] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of the embodiments of this invention will be described in more detail below with reference to the accompanying drawings. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of this invention. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this invention, and should not be construed as limiting the invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0054] like Figure 2-3 As shown, an electric switch with at least two poles includes an electric switch body 1 and a driving mechanism 2. The electric switch body 1 includes an insulating shell 11, a moving contact 12, a stationary contact 13, an operating mechanism 14, an electromagnetic device 15, and an arc extinguishing device 16. The moving contact 12, the stationary contact 13, the electromagnetic device 15, and the arc-extinguishing device 16 are disposed inside the insulating housing 11. The operating mechanism 14 is partially disposed inside the insulating housing 11 and partially extends to the outside of the insulating housing 11. The driving mechanism 2 is disposed inside the insulating housing 11 or on the top outer surface of the insulating housing 11 along the Z-axis. Alternatively, the driving mechanism 2 may be partially disposed inside the insulating housing 11 and partially extend to the top outer surface of the insulating housing 11 along the Z-axis. The moving contact 12 is disposed below the operating mechanism 14 along the Z-axis extension direction. The stationary contact 13 is disposed in front of the moving contact 12 along the X-axis extension direction. The arc-extinguishing device 12 covers a portion of the moving contact 12 and the stationary contact 13. The operating mechanism 14 is linked with the driving mechanism 2 and the moving contact 12 respectively. The driving mechanism 2 drives the operating mechanism 14 to move back and forth along the X-axis, thereby causing the moving contact 12 and the stationary contact 13 to contact or disconnect, so that the electric switch can realize the connection or disconnection of electricity.

[0055] The drive mechanism 2 can be installed as an independent component in the insulating housing 11 in a recessed and detachable manner. The drive mechanism 2 is located in front of the operating mechanism 14 along the X-axis extension direction. The electric switch makes full use of the recessed space left in front of the operating mechanism in the structure space of the electric switch, realizing the arrangement of all or part of the drive mechanism inside the electric switch body. This makes full use of the internal space of the electric switch, realizes the rational layout of each component, can greatly reduce the height of the electric switch, and optimize the installation depth space.

[0056] like Figure 1As shown, the projection A1 of the drive mechanism 2 along the X-axis direction and the projection A2 of the operating mechanism 14 along the X-axis direction at least partially overlap. The top of the projection A1 along the Z-axis direction is lower than the top of the projection A2, and the bottom of the projection A1 along the Z-axis direction is higher than the bottom of the projection A2. Therefore, the projection of the projection A2 along the Y-axis direction can completely cover the projection A1.

[0057] like Figure 1-3 As shown, the driving mechanism 2 is located above the stationary contact 13 portion of the structure along the Z-axis, and the projection of the driving mechanism 2 onto the stationary contact 13 along the Z-axis at least partially overlaps with the projection of the stationary contact 13 along the Z-axis. The driving mechanism 2 is also positioned above the stationary contacts 13 of adjacent poles along the Z-axis. Similarly, the driving mechanism 2 is located above the moving contact 12 portion of the structure along the Z-axis, and the projection of the driving mechanism 2 onto the moving contact 12 portion of the structure along the Z-axis at least partially overlaps with the projection of the moving contact 12 of adjacent poles. The contact 12 portion is located above the Z-axis extension direction, and the drive mechanism 2 is located between two adjacent moving contact 12 portions along the Y-axis direction. The drive mechanism 2 is located above the electromagnetic device 15 along the Z-axis extension direction, and the projection of the drive mechanism 2 and the electromagnetic device 15 along the Z-axis direction at least partially overlaps. The drive mechanism 2 is located above a portion of the arc-extinguishing device 16 along the Z-axis extension direction, and between two adjacent portions of the arc-extinguishing device 16 along the Y-axis direction of the operating mechanism 14. Compared to the traditional structure where the drive mechanism 2 is mounted on the electrical switch, this invention utilizes the recessed space in front of the operating mechanism 14 along the X-axis extension direction of the electrical switch body 1, modularly installing the drive mechanism 2, effectively reducing the height of the electrical switch, achieving a reasonable layout of components, and saving installation space.

[0058] like Figure 2 , 3 As shown, the insulating housing 11 includes a base 111, a middle cover 112, and a top cover 113. The moving contact 12, the stationary contact 13, the electromagnetic device 15, and the arc-extinguishing device 16 are respectively disposed in different cavities formed by the base 111 and the middle cover 112. The operating mechanism 14 and the driving mechanism 2 are respectively disposed in different cavities formed by the middle cover 112. The driving mechanism 2, the moving contact 12, the stationary contact 13, the operating mechanism 14, the electromagnetic device 15, and the arc-extinguishing device 16 are insulated and protected by the base 111, the middle cover 112, and the top cover 113, thereby improving the overall safety performance of the electrical switch.

[0059] The base 111 includes an inner cavity that opens upwards and is divided into multiple smaller cavities for housing the moving contact 12, the stationary contact 13, the arc-extinguishing device 16, and the electromagnetic device 15. The upper cover 113 is positioned over the middle cover 112 and, together with the recessed cavity of the middle cover 112, forms an insulating cavity that can insulate and accommodate the operating mechanism 14 and the driving mechanism 2. The upper cover 113 can be an integral or separate structure. The upper cover 113 includes a mechanism opening and a manual opening. The mechanism opening is used to avoid the mechanism handle 141, and the manual opening is used to avoid the manual lever 218.

[0060] The middle cover 112 is mounted on the base 111 and includes a middle cover inner cavity and a middle cover recess. The middle cover inner cavity is open at the bottom and has multiple compartments arranged at intervals, forming an insulating inner cavity with the base inner cavity to insulate and accommodate the moving contact 12, the stationary contact 13, the arc extinguishing device 16, and the electromagnetic device 15. The middle cover recess is open at the top and has multiple compartments arranged at intervals, forming a submerged insulating inner cavity with the upper cover 113 to insulate and accommodate the operating mechanism 14 and the driving mechanism 2. The middle cover recess includes a housing recess 1121, which is used solely for insulating and accommodating the driving mechanism 2. The structure of the housing recess 1121 can vary depending on the installation method of the driving mechanism 2. The driving mechanism 2 is located in the housing recess 1121 at the top of the insulating housing 11 along the Z-axis. The driving mechanism can be replaced by removing the upper cover 113 of the electrical switch, making operation convenient and improving the convenience and speed of product operation and maintenance.

[0061] like Figure 7As shown, the housing cavity 1121 for mounting the drive mechanism 2 includes: a cavity 11211, a boss 11212, an inner wall 11213, and a slot 11214. The cavity 11211 is a recessed receiving space formed by a portion of the top of the middle cover 112 being recessed downwards; the boss 11212 is a protruding structure extending upwards from the bottom surface of the cavity 11211, and has a slot at its top. A portion of the fixing holes of the upper bracket 211 of the drive mechanism 2 are fixed to the slot at the top of the boss 11212 by screws, for fixing the drive mechanism 2; the inner wall 11213 is the wall structure around the cavity 11211, serving to guide the support plate 2112 of the drive mechanism 2. Since the inner wall 11213 defines the lateral space of the cavity 11211, it also plays a certain limiting role on the support plate 2112 of the drive mechanism 2; the slot 11214 is disposed between the inner wall 11213 and the boss 11212, and the support plate 2112 of the upper bracket 211 of the drive mechanism 2 is inserted into the slot 11214 for limiting, which is used to further limit the position of the drive mechanism 2.

[0062] like Figure 8 As shown, the housing cavity 1121 for mounting the drive mechanism 2 includes: a cavity 11211, a boss 11212, an inner wall 11213, an outer wall 11215, and a protrusion 11216. The cavity 11211 is a recessed receiving space formed by the downward indentation of a portion of the top area of ​​the middle cover 112; the boss 11212 is the protrusion 11216 structure extending upward from the bottom surface of the cavity 11211, and has a slot at its top. A portion of the fixing holes of the lower bracket 212 of the drive mechanism 2 are fixed to the slot at the top of the boss 11212 by screws to secure the drive mechanism 2; the inner wall 11213 is the wall structure around the cavity 11211, serving to guide the support plate 2112 of the drive mechanism 2. The inner wall 11213 defines the lateral space of the cavity 11211, thus also limiting the support plate 2112 of the drive mechanism 2. The outer wall 11215, a wall structure surrounding the outer periphery of the cavity 11211, is used to limit the support plate 2112 of the drive mechanism 2, and to a certain extent limits the position of the drive mechanism 2. The protrusion 11216 is disposed on the top end face between the inner wall 11213 and the outer wall 11215, and is fitted into part of the fixing hole of the upper bracket 211 of the drive mechanism 2, further limiting the position of the drive mechanism 2.

[0063] like Figure 2 , 3As shown, the driving mechanism 2 is located above the stationary contact 13 part of the structure along the Z-axis, and the projection of the driving mechanism 2 and the stationary contact 13 along the Z-axis at least partially overlaps.

[0064] like Figure 5 , 6 As shown, the stationary contact 13 includes: a stationary arc contact 131, a stationary main contact 132, a stationary busbar 133, and a stationary magnetic busbar 134. The stationary main contact 132 is part of the main contact system and is a structure for contacting the moving main contact 122. The stationary main contact 132 is formed by extending the stationary magnetic busbar 134 and bending it towards the moving main contact 122 to shorten the moving main contact 122 and increase the overtravel. The stationary magnetic busbar 134 is part of the main contact system and is a partial extension of the stationary busbar 133, used for mounting the electromagnetic device 15. The stationary busbar 133 is a busbar structure with horizontal wires extending along the X-axis. The stationary arc contact 131 is part of the arc contact system and is a cylindrical structure perpendicular to the stationary busbar 133. Its top is used to contact the moving arc contact 121, and its bottom is fixed to the stationary busbar 133 by welding or riveting.

[0065] like Figure 2-3 As shown, the driving mechanism 2 is located above the stationary main contact 132, part of the stationary busbar 133, and the stationary magnetic busbar 134 along the Z-axis extension direction. The driving mechanism 2 and the projection of the stationary main contact 132, part of the stationary busbar 133, and the stationary magnetic busbar 134 along the Z-axis direction at least partially overlap.

[0066] like Figure 2-3 As shown, the driving mechanism 2 is located above the moving contact 12 part structure along the Z-axis extension direction, and between two adjacent moving contact 12 part structures along the Y-axis extension direction.

[0067] like Figure 5-6 As shown, the moving contact 12 includes a moving arc contact 121, a moving main contact 122, and a rotating shaft 123. The rotating shaft 123 is rotatably disposed in the insulating cavity formed by the base 111 and the middle cover 112, and is used to link with the linkage assembly 144 of the operating mechanism 14. The operating mechanism 14 controls the moving contact 12 to rotate back and forth through the rotating shaft 123, so that the moving contact 12 contacts or separates from the stationary contact 13, thereby completing the closing and opening of the circuit breaker. The moving main contact 122 is part of the main contact system, passes through and is rotatably fixed in the cavity of the rotating shaft 123, and the moving main contact 122 is shorter than the moving arc contact 121. The moving arc contact 121 is part of the arc contact system, passes through and is rotatably fixed in the cavity of the rotating shaft 123.

[0068] like Figure 3 As shown, in the closed state of the electrical switch, the drive mechanism 2 is located above the moving main contact 122 along the Z-axis extension direction, and the projection of the drive mechanism 2 and the moving main contact 122 along the Z-axis direction at least partially overlaps. The drive mechanism 2 is located between the two adjacent moving arc contacts 121 along the Y-axis direction. Figure 2 As shown, in the open state of the electrical switch, the drive mechanism 2 is located above the moving main contact 122 along the Z-axis and biased towards the X-axis. The drive mechanism 2 is located between two adjacent moving arc contacts 121. The projections of the drive mechanism 2 and the moving arc contact 121 along the Y-axis at least partially overlap.

[0069] like Figure 2-4 As shown, the moving main contact 122, the moving arc contact 121, the stationary arc contact 131, the stationary main contact 132, the stationary busbar 133, and the stationary magnetic busbar 134 of adjacent poles form a symmetrical distribution structure along the pole boundary line or center line of the electrical switch. The moving main contact 122 is closer to the center of the electrical switch body 1 along the Y-axis than the moving arc contact 121. The stationary main contact 132 is closer to the center of the electrical switch body 1 along the Y-axis than the stationary arc contact 131. The moving main contact 122 is shorter than the moving arc contact 121. The drive mechanism 2 is located between the stationary arc contact 131 and the moving arc contact 121 of adjacent poles, and is positioned above the stationary main contact 132, a portion of the stationary busbar 133, the stationary magnetic busbar 134, and the moving main contact 122 of adjacent poles along the Z-axis. The projection of the drive mechanism 2 onto the stationary main contact 132, a portion of the stationary busbar 133, the stationary magnetic busbar 134, and the moving main contact 122 of adjacent poles along the Z-axis at least partially overlaps. The stationary main contact 132 is closer to the center of the electrical switch body 1 along the Y-axis than the stationary arc contact 131. The stationary main contact 132, the stationary magnetic array 134, and the moving main contact 122 constitute the main contact system, and the driving mechanism 2 is located above the main contact system along the Z-axis. The stationary arc contact 131 and the moving arc contact 121 constitute the arc contact system, and the driving mechanism 2 is located between two adjacent arc contact systems along the Y-axis. The driving mechanism 2 drives the operating mechanism 14 to reciprocate along the X-axis to connect or disconnect the moving arc contact 121 from the stationary arc contact 131 and the moving main contact 122 from the stationary main contact 132. The moving arc contact 121 connects and disconnects from the stationary arc contact 131 before the moving main contact 122 connects and disconnects from the stationary main contact 132, so as to realize the protection of the main contact system by the arc contact system when the fault current of the electrical switch is interrupted.

[0070] like Figure 1-3As shown in Figure 5, the drive mechanism 2 is positioned in front of the operating mechanism 14 along the X-axis extension direction, and the projections of the drive mechanism 2 and the operating mechanism 14 along the X-axis direction at least partially overlap. The highest point of the drive mechanism 2 along the Z-axis direction is not higher than the highest point of the operating mechanism 14, and the lowest point of the drive mechanism 2 along the Z-axis direction is not lower than the lowest point of the operating mechanism 14.

[0071] like Figure 2-3 As shown, the operating mechanism 14 includes: a mechanism handle 141, a connecting rod assembly 144, a support assembly 145, an extended handle 146, an energy storage assembly 143, and a lever assembly 142.

[0072] The energy storage component 143, the lever component 142, and the connecting rod component 144 are located between the two support components 145, while the mechanism handle 141 and the extended handle 146 are located outside the two support components 145.

[0073] The mechanism handle 141 is mounted on the lever assembly 142 at the top of the operating mechanism 14 and extends to the outside of the electric switch housing. It is used to withstand externally applied operating forces and transmit the operating forces to the lever assembly 142. The top end face of the mechanism handle 141 is higher than the top end face of the sliding module 22 of the drive mechanism 2. The linkage assembly 144 is rotatably mounted in the support assembly 145. The energy storage assembly 143 and the lever assembly 142 are connected to the lever assembly 142 inside the operating mechanism 14. The drive mechanism 2 is located in front of the linkage assembly 144 along the X-axis extension direction. The projections of the connecting rod assembly 144 and the driving mechanism 2 along the X-axis direction can partially coincide. The lowest point of the driving mechanism 2 along the Z-axis direction is not lower than the lowest point of the connecting rod assembly 144 along the Z-axis direction. The lever assembly 142 is used to connect with the rotating shaft 123 of the moving contact 12. The support assembly 145, as the frame support of the operating mechanism 14, is fixed to the middle cover 112 of the insulating shell 11. The driving mechanism 2 is sleeved on the mechanism handle 141. The driving mechanism 2 drives the mechanism handle 141 to reciprocate along the X-axis direction, thereby enabling the electric switch to connect or disconnect electricity. The highest point of the drive mechanism 2 along the Z-axis is not higher than the highest point of the mechanism handle 141; the extended handle 146 is sleeved on the end of the mechanism handle 141 away from the operating mechanism 14, used to increase the lever arm of the manual opening and closing operation and reduce the operating force of the manual opening and closing operation; the energy storage component 143 is a tension spring, with both ends fixed to the lever assembly 142 and the connecting rod assembly 144 respectively, the top along the Z-axis hanging on the lever assembly 142 below the mechanism handle 141, and the bottom along the Z-axis hanging on the shaft on which the connecting rod assembly 144 is rotatably fixed, providing energy for the opening and closing of the operating mechanism 14. The drive mechanism 2 is located in front of the energy storage component 143 along the X-axis direction, and the projection of the energy storage component 143 and the drive mechanism 2 along the X-axis direction at least partially overlaps; the lever assembly 142 passes through the operating mechanism 14, and its top along the Z-axis direction cooperates with the mechanism handle 141, and its bottom along the Z-axis direction cooperates with the connecting rod assembly 144, providing a guarantee for maintaining the open and closed positions of the operating mechanism 14. The drive mechanism 2 is located in front of the lever assembly 142 along the X-axis direction, and the projection of the lever assembly 142 and the drive mechanism 2 along the X-axis direction at least partially overlaps.

[0074] The lever assembly 142 moves forward along the X-axis direction driven by the mechanism handle 141. The energy storage assembly 143 stores energy for the lever assembly 142 before closing the circuit. When the lever assembly 142 passes the dead point, the energy storage assembly 143 releases energy. The lever assembly 142 drives the rotating shaft 123 of the moving contact 12 to rotate through the connecting rod assembly 144. Thus, the operating mechanism 14 drives the moving contact 12 to contact or move away from the stationary contact 13 to realize the closing or opening of the electrical switch.

[0075] like Figure 2-5 As shown, the electrical switch body 1 includes an electromagnetic device 15, which is sleeved on the stationary contact 13 of the magnetic contact system. The driving mechanism 2 is located above the electromagnetic device 15 along the Z-axis extension direction, and the projection of the driving mechanism 2 and the electromagnetic device 15 along the Z-axis direction at least partially coincides. The electromagnetic device 15 includes a magnetic yoke 151, an armature 152, and a reed 153.

[0076] The magnetic yoke 151 has a U-shaped structure and is fixedly sleeved on the static magnetic array 134 of the stationary contact 13. The armature 152 has an inverted U-shaped structure and is rotatably disposed above the magnetic yoke 151, forming a closed magnetic circuit with the magnetic yoke 151. The spring 153 is disposed on the armature 152 and can be an elastic element structure such as a leaf spring, compression spring, or spring sheet. The spring 153 includes contact fingers and mounting holes. The contact fingers are disposed at one end of the spring 153 and have a comb-shaped multi-finger structure, which can abut against the top of the moving main contact 122 of the moving contact 12. Applying pressure improves the high current withstand capability of the electrical switch. The comb-like multi-finger structure increases the deformation and reliability of the spring 153 applying pressure to the multiple moving contacts 122. By individually pressurizing the moving contacts through the multi-finger spring 153, the problem of inconsistent contact height between the armature 152 and each conductive moving contact 12 is automatically adjusted, ensuring that each conductive moving contact 12 is subjected to pressure from the armature 152, thereby increasing the pressure of the moving contact 12. The mounting hole is located at the other end of the spring 153 for screw fastening to the armature 152.

[0077] like Figure 4-6As shown, the arc-extinguishing device 16 is sleeved on the arc contact system, and the driving mechanism 2 is disposed between two adjacent arc-extinguishing devices 16. The projection of the driving mechanism 2 and the arc-extinguishing device 16 along the Y-axis direction at least partially overlaps. The arc-extinguishing device 16 includes an insulating side plate 161, an arc-extinguishing grid 162, and a gas-generating element 163. The driving mechanism 2 is located on the side of a portion of the arc-extinguishing device 16 extending along the Z-axis and biased towards the Y-axis extension direction, and is located between two portions of the arc-extinguishing device 16 adjacent to the operating mechanism 14 along the Y-axis direction. The top surface of the arc-extinguishing device 16 is not higher than the top surface of the driving mechanism 2 in the Z-axis extension direction, and the bottom surface of the driving mechanism 2 is lower than the top surface of the arc-extinguishing device 16 in the Z-axis extension direction.

[0078] like Figure 7 , 8 As shown, the driving mechanism 2 includes a driving module 21 and a sliding module 22. The sliding module 22 is linked to the driving module 21 in the Z-axis direction. The sliding module 22 is detachably disposed in the housing cavity 1121. The sliding module 22 is sleeved on the mechanism handle 141. The driving module 21 is detachably disposed in the housing cavity 1121.

[0079] like Figure 9 As shown, the drive module 21 includes an upper bracket 211, a lower bracket 212, a support column 213, a bushing 214, a motor 215, a speed reduction gear set 216, a drive output group 217, and a hand lever 218. The motor 215 is linked to the sliding module 22 in sequence through the speed reduction gear set 216 and the drive output group 217, and the hand lever 218 is linked to the sliding module 22 in sequence through the speed reduction gear set 216 and the drive output group 217.

[0080] The drive module 21 of the drive mechanism 2 is disposed in the cavity 1121 of the housing. The drive module 21 can be guided by the support plate 2112 of its upper bracket 211 and the inner wall 11213 of the cavity 1121, and then limited by the slot 11214 of the cavity 1121, and finally detachably fixed to the boss 11212 in the cavity 1121. Alternatively, the drive module 21 can be guided by the support plate 2112 of its upper bracket 211 and the outer wall 11215 of the cavity 1121, and then limited by the protrusion 11216 of the cavity 1121, and finally detachably fixed to the boss 11212 in the cavity 1121.

[0081] The upper support 211 includes a working plate 2111 and a support plate 2112. The working plate 2111 is a working panel with a limiting groove 21111 and fixing holes 21112. The limiting groove 21111 is located at the junction of the working plate 2111 and the support plate 2112 or on the surface of the working plate 2111, used to limit the sliding module 22. The fixing holes 21112 are located on the working plate 2111; some of the fixing holes are used to engage with the boss 11212 in the housing cavity 1121 to fix the lower support 212 with screws. Some fixing holes are used to fit screws to fix the sliding module 22 to the upper bracket 211, and some fixing holes are used to limit or fix components such as the motor 215, the speed reduction gear set 216, the drive output set 217, and the support column 213; the support plate 2112 is bent downward at 90 degrees relative to the working plate 2111 and inserted into the slot 11214 of the housing cavity 1121 to position the upper bracket 211, thereby limiting the position of the drive mechanism 2.

[0082] The lower support 212 includes fixing holes or limiting grooves, which are disposed on the working surface of the lower support 212 for limiting or fixing components such as the motor 215, the speed reduction gear set 216, the gear shaft 2161, the drive output set 217, and the support column 213. The fixing holes of the lower support 212 are arranged opposite to some of the fixing holes of the upper support 211.

[0083] The end face of one end of the support column 213 is provided with a protrusion with a reduced inner diameter, and the end face of the other end is provided with a threaded hole. The protrusion is riveted and fixed to the upper bracket 211 or the lower bracket 212, and the threaded hole is fixed to the lower bracket 212 or the upper bracket 211 with screws. The lower bracket 212 and the upper bracket 211 are fixed together by multiple support columns 213 to form the overall frame of the drive module 21. The lower bracket 212 is located on the side of the upper bracket 211 where the support plate 2112 is located.

[0084] The bushing 214 has a hollow cylindrical structure, and both the inner wall 11213 and the outer wall 11215 are provided with at least one stepped surface. At least one stepped surface on the outer wall 11215 is in limiting engagement with the surface of the upper bracket 211 or the lower bracket 212, and at least one stepped surface on the inner wall 11213 is in limiting engagement with the end face of the gear shaft 2161 of the speed reduction gear set 216.

[0085] The motor 215 includes an output end 2151, a protective cover 2152, and a body 2153. The output end 2151 engages with the initial gear 2162 of the deceleration gear set 216. The cross-section of the output end 2151 can be horseshoe-shaped, fan-shaped, polygonal, racetrack-shaped, or other structures. The protective cover 2152, a hollow cylindrical structure, is fitted onto the output end 2151. A positioning protrusion is provided on the top surface, which engages with the fixing hole of the upper bracket 211. The protective cover 2152 has multiple through holes from top to bottom for fixing. The protective cover 2152 has an opening along its circumference facing the deceleration gear set 216. The protective cover 2152 provides peripheral protection for the initial gear 2162 of the deceleration gear set 216. The body 2153 is fitted into the limiting groove of the lower bracket 212. The body 2153 has fastening holes. Screws are sequentially passed through the fixing hole of the upper bracket 211 and the through hole of the protective cover 2152 before being threaded into the fastening holes.

[0086] The speed-reducing gear set 216 includes multiple gear shafts 2161, an initial gear 2162, multiple speed-reducing gears 2163, a transmission gear 2164, and an output gear 2165. The gear shafts 2161 have a cylindrical structure, including a shaft body and a shaft end. The cross-section of the shaft body can be horseshoe-shaped, fan-shaped, polygonal, racetrack-shaped, etc., and is concentrically positioned with the gears. The shaft end has a protrusion that mates with the bushing 214, and the shaft end abuts against the stepped surface of the inner wall 11213 of the bushing 214. The initial gear 2162 is fitted onto the output end 2151 of the motor 215, and the gear center has a through hole matching the cross-section of the output end 2151 of the motor 215, rotating with the output end 2151 of the motor 215. The multiple speed-reducing gears 2163 adopt a combination structure of two concentric gears with different diameters and rotating at the same angular velocity. The centers of the two gears are aligned with the gear shaft 2161. The 61-axis has a matching limiting structure, which can be horseshoe-shaped, fan-shaped, polygonal, racetrack-shaped, etc. The larger diameter gear is the input gear, and the smaller diameter gear is the output gear 2165, serving to stabilize and reduce speed. The transmission gear 2164 has a center using a limiting structure adapted to the gear shaft 2161, and engages with the end-end deceleration gear 2163, rotating with it. The output gear 2165 has a ratchet hole at its center. The ratchet hole is a circular hole with at least two ratchet end faces along a certain diameter and in the same direction on the circumference. Rings with the same ratchet hole are riveted to both sides, increasing the strength of the output gear 2165. The output gear 2165 rotates with the transmission gear 2164.

[0087] The drive output group 217 includes an output shaft 2171, a drive cam 2172, a shaft pin 2173, a bearing 2174, a compression spring 2175, and a top shaft 2176. The output shaft 2171 is rotatably limited between the upper and lower supports 212 via the bushing 214. One end face of the output shaft 2171 has a limiting protrusion that extends through to the other side of the upper support 211 and is fastened to the drive cam 2172. The limiting protrusion has a horseshoe-shaped, fan-shaped, polygonal, or racetrack-shaped cross-section. The shaft body of the output shaft 2171 that mates with the output gear 2165 has a non-through or through circular hole along its diameter. The drive cam 2172 has a structure at its center that matches the limiting protrusion of the output shaft 2171, allowing the drive cam 2172 to rotate synchronously with the output shaft 2171. The shaft pin 2173 is riveted to the outer circumference of the drive cam 2172 through a through hole and rotates with the drive cam 2172. The bearing... 2174, a limiting sleeve is fitted on the shaft pin 2173, rotates with the drive cam 2172, and forms a linkage with the sliding module 22; the compression spring 2175 is disposed in the circular hole of the output shaft 2171; the top shaft 2176 is inserted into the circular hole of the output shaft 2171. If the circular hole of the output shaft 2171 is a through hole, one end of each of the two top shafts 2176 abuts against the compression spring 2175, and the other end abuts against the inner wall 11213 of the ratchet hole of the output gear 2165; if the circular hole of the output shaft 2171 is a non-through hole, one end of one top shaft 2176 abuts against the outside of the compression spring 2175, the inside of the compression spring 2175 abuts against the bottom of the circular hole, and the other end of the top shaft 2176 abuts against the inner wall 11213 of the ratchet hole of the output gear 2165.

[0088] The manual lever 218 includes an input lever 2181 and an output gear 2182. The input lever 2181 is located at one end of the manual lever 218, and the output gear 2182 is located at the other end of the manual lever 218. The input lever 2181, after being fitted with the bushing 214, engages with the upper bracket 211. The input lever 2181 passes through the working plate 2111 of the upper bracket 211 and extends in the opposite direction to the support plate 2112. The output gear 2182 has a cylindrical protrusion on its end face. After being fitted with the bushing 214, the cylindrical protrusion engages with the lower bracket 212. The output gear 2182 meshes with the last reduction gear 2163. The manual lever 218 sequentially engages with the drive output group 217 through the last reduction gear 2163, the transmission gear 2164, and the output gear 2165 to manually output power to the sliding module 22.

[0089] like Figure 10 As shown, the sliding module 22 includes a bracket 221, a guide rail 222, a first slider 223, a second slider 224, a sliding plate 225, and a return spring 226. The first slider 223, the second slider 224, and the sliding plate 225 are slidably mounted on the bracket 221 via the guide rail 222. The second slider 224 is sleeved on the mechanism handle 141. The drive module 21 is linked to the mechanism handle 141 in sequence via the first slider 223, the sliding plate 225, and the second slider 224.

[0090] The bracket 221 adopts a flat plate bending structure, with all four sides bent towards the same side to form a cavity structure, including a bracket body, a first bending plate 2211, a second bending plate 2212, a third bending plate 2213, a fourth bending plate 2214, and a fifth bending plate 2215. The bracket body has corresponding elongated openings based on the openings on the second slider 224 and its movement trajectory, ensuring that the openings on the second slider 224 are always in communication with the outside of the bracket 221. The first bending plate 2211 and the third bending plate 2213 are arranged parallel to each other and perpendicular to the second bending plate 2212, the fourth bending plate 2214, and the fifth bending plate 2215. Each of these plates has two mirror-image but different-sized positioning holes, which are used to limit and fix the guide rail 222. The second bending plate 2212 and the fourth bending plate 2214 are arranged parallel to each other and have multiple positioning protrusions and fixing plates. The positioning protrusion extends along the opening direction of the cavity of the bracket 221 and engages with the positioning groove of the upper bracket 211 and / or the lower bracket 212. The fixing plate is bent perpendicular to the second bending plate 2212 and the fourth bending plate 2214, in the same direction, opposite direction, or opposite direction, and is screwed into part of the fixing holes of the upper bracket 211 and / or the lower bracket 212. The fifth bending plate 2215 is arranged on the same side and parallel to the second bending plate 2212 or the fourth bending plate 2214. The fifth bending plate 2215 has fixing holes for fixing one end of the return spring 226.

[0091] The guide rail 222 has a cylindrical structure, including a limiting protrusion and a slot. The limiting protrusion extends along the end face of one end of the guide rail 222, forming a protrusion with a diameter slightly smaller than that of the guide rail 222, for limiting engagement with the smaller-diameter positioning hole in the first bending plate 2211 or the third bending plate 2213. The slot is located at the other end of the guide rail 222, with a circumferential groove structure on the circumferential surface near the end face. The guide rail 222 passes through the larger-diameter positioning hole in the first bending plate 2211 or the third bending plate 2213. After the end with the limiting protrusion engages with the smaller-diameter positioning hole in the first bending plate 2211 or the third bending plate 2213, the slot is located inside the cavity of the bracket 221 and, together with retaining rings, stop rings, and other stop components, forms a limiting and fixing engagement with the inner wall 11213 of the cavity of the bracket 221.

[0092] The first slider 223 is slidably disposed within the cavity of the bracket 221 and adopts a split structure design, including a slider base 2231, a first guide plate 2232, and a second guide plate 2233. The slider base 2231 includes a track groove 22311 and a mounting platform 22312. The track groove 22311 is located at the bottom near the two end faces for sliding engagement with the guide rail 222. The mounting platform 22312 has a boss structure extending outward on one side parallel to the track groove 22311. The boss structure has a fixing hole or fixing groove for fixing one end of the return spring 226. The top edge has multiple through holes, which are close to the two sides perpendicular to the track groove 22311 and are used to fasten the slide plate 225 with screws. A through hole can be provided in the middle of the top to save consumables and avoid the bearing 2174 of the drive module 21. The first guide plate 2232 and the second guide plate 2233 have the same structure. The first guide plate 2232 is relatively far away from the second slider 224 and is used for closing the electric switch. The second guide plate 2233 is relatively close to the second slide plate 225 and is used for opening the electric switch. Both include working end faces 22321 / 22331, clearance end faces 22322 / 22332, and threaded holes. The working end faces 22321 / 22331 and the clearance end faces 22322 / 22332 have the same orientation but different heights. The working end faces 22321 / 22331 and the clearance end faces 22322 / 22332 are connected by multiple arc transitions. The working end faces 22321 / 22331 of the first guide plate 2232 and the clearance end faces 22322 / 22332 of the second guide plate 2233 are parallel and spaced apart. The clearance end faces 22322 / 22332 of the first guide plate 2232 and the working end faces 22321 / 22331 of the second guide plate 2233 are parallel and spaced apart, thus forming a guide groove between the first guide plate 2232 and the second guide plate 2233. The bearing 2174 of the drive module 21 moves within the guide groove and acts on the working end faces 22321 / 22331 of the first guide plate 2232 or the second guide plate 2233 at different times, enabling the sliding module 22 to obtain the power for reciprocating sliding. The threaded hole is used for threaded fastening with the bracket 221.

[0093] The second slider 224 is slidably disposed within the cavity of the bracket 221, employing an integrated structural design, including a guide slot 2241, a handle opening 2242, and a threaded hole. The guide slots 2241 are located near two opposite sides and extend through the other two opposite sides. Two guide rails 222 pass through the two guide slots 2241, allowing the second slider 224 to slidably be disposed within the cavity of the bracket 221 along the guide rails 222. The handle opening 2242 is located at the top center of the second slider 224, narrowing downwards to accommodate the handle of the operating mechanism 14. The cross-section of the handle opening 2242 along the direction of the guide slot 22311 is an inverted trapezoidal structure, meaning the top opening is larger than the bottom opening, allowing the handle to swing back and forth significantly within the handle opening 2242, increasing the swing stroke of the mechanism handle 141. The second slider 224 is fixed to the slide plate 225 by screws.

[0094] The slide plate 225 has a rectangular flat plate structure and is slidably disposed in the inner cavity of the bracket 221. One end of the slide plate 225 is threadedly fastened to the first slider 223; the other end of the slide plate 225 is threadedly fastened to the second slider 224, and this end is provided with an opening to avoid the handle of the operating mechanism 14. The opening overlaps with and is slightly larger than the handle opening 2242 of the second slider 224.

[0095] The reset spring 226 is a tension spring structure, with one end attached to the fixing hole of the bracket 221 and the other end attached to the fixing hole of the second slider 224.

[0096] The positioning holes of the first bending plate 2211 and the third bending plate 2213 can also be two holes in the same position and of the same size. The guide rail 222 adopts a cylindrical structure and only includes slots. The slots are provided on the circumferential surfaces of both ends of the guide rail 222 near the end face. The guide rail 222 passes through the positioning holes in the first bending plate 2211 and the third bending plate 2213. The slots at both ends are located inside the cavity of the bracket 221 and are combined with retaining rings, retaining rings and other stop members to form a limiting and fixing fit with the inner wall 11213 of the cavity of the bracket 221.

[0097] Based on the power source, the drive mechanism 2 can be divided into electric drive mechanism, manual drive mechanism, and electric and manual integrated synchronous drive mechanism, which is convenient for users to choose and has strong product versatility. The drive mechanism 2 includes a mounting plate and a power source fixed to the mounting plate, multi-stage gears, and connecting rods. The upper bracket 211 and / or the lower bracket 212 and / or the bracket 221 constitute the mounting plate; the power source can be the electric power provided by the motor 215, the manual power provided by the lever 218, or the spring force provided by the elastic element; the initial gear 2162, the deceleration gear 2163, the transmission gear 2164, the output gear 2165, and the output gear 2182 constitute the multi-stage gears; the drive output group 217 and the first slider 223, the second slider 224, and the sliding plate 225 of the sliding module 22 constitute the connecting rods. The linkage is sleeved on the operating mechanism 14. The power source drives the operating mechanism 14 to move back and forth along the X-axis direction directly or indirectly, so as to drive the moving contact 12 to contact or disconnect with the stationary contact 13, thereby realizing the connection or disconnection of electricity.

[0098] like Figure 2 , 5 As shown in Figure 6, when an electrical switch with at least two poles is in the open state, the drive mechanism 2 is installed in the recess 1121 of the housing, the second slider 224 of the drive mechanism 2 is sleeved on the mechanism handle 141 of the operating mechanism 14, the extended handle 146 is sleeved on the mechanism handle 141 above the drive mechanism 2 along the Z-axis extension direction, and the second slider 224 is located at the end away from the drive module 21. At this time, after the motor 215 of the drive module 21 is powered on, the output end 2151 rotates in a unified direction, sequentially driving the initial gear 2162, the speed reduction gear 2163, the transmission gear 2164, and the output gear 2165 of the speed reduction gear set 216 to rotate, thereby driving the drive cam 2172 of the drive output set 217 to rotate and output around the output shaft 2171. The bearing 2174 located on the drive cam 2172 acts on the working end face 22321 of the first guide plate 2232 of the sliding module 22, pushing the first slider 223 to slide along the guide rail 222, and then sequentially pushing the mechanism handle 141 to rotate forward in the X-axis extension direction toward the closed state through the slide plate 225 and the second slider 224.

[0099] If the drive mechanism 2 fails while at least one two-pole electrical switch is in the open state, the extended handle 146 can still be used to directly push the mechanism handle 141 to manually close the switch, ensuring timely power supply, reducing user complaints, and solving a major problem that traditional products have long failed to address. Furthermore, the extended handle 146 not only extends beyond the insulating shell for convenient manual operation but also saves space, reducing the overall height of the electrical switch and thus its size, achieving miniaturization. It also saves on the overall height of the distribution box, significantly improving space utilization within the distribution box.

[0100] like Figure 3 As shown, an electrical switch with at least two poles is in the closed state. The drive mechanism 2 is submerged and installed in the housing cavity 1121. The second slider 224 of the drive mechanism 2 is sleeved on the mechanism handle 141 of the operating mechanism 14. The extended handle 146 is sleeved on the mechanism handle 141 above the drive mechanism 2 along the Z-axis extension direction. The second slider 224 is located at one end close to the drive module 21. At this time, after the motor 215 of the drive module 21 is powered on, the output end 2151 rotates in a unified direction, sequentially driving the initial gear 2162, the speed reduction gear 2163, the transmission gear 2164, and the output gear 2165 of the speed reduction gear set 216 to rotate, thereby driving the drive cam 2172 of the drive output set 217 to rotate and output around the output shaft 2171. The bearing 2174 located on the drive cam 2172 acts on the working end face 22331 of the second guide plate 2233 of the sliding module 22, pushing the second slider 224 to slide along the guide rail 222, and then sequentially pushing the mechanism handle 141 to rotate in the rearward direction along the X-axis extension direction towards the open state through the slide plate 225 and the first slider 223.

[0101] If the drive mechanism 2 fails while at least a two-pole electrical switch is in the closed state, the extended handle 146 can still be used to directly push the mechanism handle 141 to manually open the switch. The drive mechanism 2 has the advantages of simple structure, smooth and reliable transmission, high assembly efficiency, and low production cost.

[0102] This application, by placing the drive mechanism 2 in a recessed space in front of the operating mechanism 14 along the X-axis extension direction, and exposing the mechanism handle 141 of the operating mechanism 14 to the drive mechanism 2, allows the electric / manual closing or opening of the switch to be completed through the drive mechanism 2, while also ensuring that the switch can be closed or opened by operating the switch through the conventional mechanism handle 141. This fully utilizes the internal space of the switch, achieves a reasonable layout of the components, significantly reduces the height of the switch, optimizes the installation depth, and is more conducive to the installation and use of the switch in compact distribution cabinets or energy storage PCS cabinets. The switch of this application can save space in distribution boxes or energy storage PCS cabinets.

[0103] This invention may be implemented in other specific forms without departing from its spirit and essential characteristics. The present embodiments are to be regarded in all respects as exemplary rather than limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description, and all modifications falling within the meaning of the claims and their equivalents are thus included within the scope of the invention.

Claims

1. An electrical switch with at least two poles, comprising an electrical switch body (1) and a driving mechanism (2), wherein the electrical switch body (1) includes an operating mechanism (14), and the driving mechanism (2) drives the operating mechanism (14) to reciprocate along the X-axis direction to enable or disable the electrical switch, characterized in that: The drive mechanism (2) is located in front of the operating mechanism (14) along the X-axis extension direction, and the projection A1 of the drive mechanism (2) along the X-axis direction and the projection A2 of the operating mechanism (14) along the X-axis direction at least partially overlap.

2. An electrical switch with at least two poles according to claim 1, characterized in that: The projection A2 along the Y-axis completely covers the projection A1.

3. An electrical switch with at least two poles according to claim 1, characterized in that: The operating mechanism (14) includes an energy storage component (143) and a lever component (142). The driving mechanism (2) is located in front of the energy storage component (143) and / or the lever component (142) along the X-axis extension direction. The projection of the energy storage component (143) and / or the lever component (142) along the X-axis direction at least partially overlaps with the projection of the driving mechanism (2) along the X-axis direction.

4. An electrical switch with at least two poles according to claim 1, characterized in that: The operating mechanism (14) includes a mechanism handle (141), and the driving mechanism (2) is sleeved on the mechanism handle (141). The highest point of the driving mechanism (2) along the Z-axis is not higher than the highest point of the mechanism handle (141). The driving mechanism (2) drives the mechanism handle (141) to move back and forth along the X-axis so that the electric switch can realize the connection or disconnection of electricity.

5. An electrical switch with at least two poles according to claim 1, characterized in that: The operating mechanism (14) includes a linkage assembly (144), and the driving mechanism (2) is located in front of the linkage assembly (144) along the X-axis extension direction. The lowest point of the driving mechanism (2) along the Z-axis direction is not lower than the lowest point of the linkage assembly (144) along the Z-axis direction.

6. An electrical switch with at least two poles according to claim 1, characterized in that: The electrical switch body (1) also includes a moving contact (12) and a stationary contact (13). The driving mechanism (2) is disposed above the moving contact (12) and / or the stationary contact (13) along the Z-axis extension direction. The projection of the driving mechanism (2) and the moving contact (12) and / or the stationary contact (13) along the Z-axis direction at least partially overlaps. The driving mechanism (2) drives the operating mechanism (14) to move back and forth along the X-axis direction to drive the moving contact (12) to contact or disconnect with the stationary contact (13), thereby realizing the connection or disconnection of electricity.

7. An electrical switch with at least two poles according to claim 6, characterized in that: The drive mechanism (2) is disposed above the adjacent two poles of the moving contact (12) and / or the stationary contact (13) along the Z-axis extension direction, and the drive mechanism (2) at least partially overlaps with the projection of the moving contact (12) and / or the stationary contact (13) along the Z-axis direction.

8. An electrical switch with at least two poles according to claim 6, characterized in that: The electrical switch body (1) also includes an electromagnetic device (15), which is sleeved on the stationary contact (13). The driving mechanism (2) is located above the electromagnetic device (15) along the Z-axis extension direction, and the projection of the driving mechanism (2) and the electromagnetic device (15) along the Z-axis direction at least partially overlaps.

9. An electrical switch with at least two poles according to claim 1, characterized in that: The electrical switch body (1) also includes an insulating shell (11), the operating mechanism (14) is disposed inside the insulating shell (11) and partially passes through the insulating shell (11), the driving mechanism (2) is sleeved on the operating mechanism (14), and the driving mechanism (2) is disposed inside the insulating shell (11) and / or at the top along the Z-axis direction.

10. An electrical switch with at least two poles according to any one of claims 1-9, characterized in that: The drive mechanism is an electric drive mechanism and / or a manual drive mechanism.

11. An electrical switch with at least two poles according to claim 10, characterized in that: The drive mechanism (2) includes at least a mounting plate and a power source, multi-stage gears, and a connecting rod fixed to the mounting plate. The connecting rod is sleeved on the operating mechanism (14) and drives the operating mechanism (14) to move back and forth along the X-axis.

12. An electrical switch with at least two poles according to claim 11, characterized in that: The power source is electric power, spring force, or human power, and the power source directly or indirectly drives the operating mechanism (14) to move back and forth along the X-axis.

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