High speed switch and electrical apparatus
By using a transmission assembly driven by a single electromagnetic component, the problems of complex structure and high cost of existing fast mechanical switches are solved, realizing low-cost fast contact operation, which is suitable for electrical equipment in low-voltage DC systems.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI LIANGXIN ELECTRICAL CO LTD
- Filing Date
- 2025-05-07
- Publication Date
- 2026-07-21
AI Technical Summary
Existing fast mechanical switches employ a dual electromagnetic repulsion mechanism design, resulting in complex structures, large sizes, and high costs, which limits the miniaturization and integration of DC circuit breakers.
It adopts a single electromagnetic component design, and through the cooperation of the transmission component and the electromagnetic component, it can realize the rapid closing or opening of the moving contact and the stationary contact. The structure is simple and the cost is low.
It enables rapid closing or opening of the moving and stationary contacts, has a simple structure and low cost, and is suitable for electrical equipment in low-voltage DC systems.
Smart Images
Figure CN224536890U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of low-voltage electrical technology, and more specifically, to a high-speed switch and electrical equipment. Background Technology
[0002] With the continuous expansion of DC system capacity and the ongoing improvement of voltage levels, higher requirements are being placed on DC circuit breakers in terms of peak short-circuit current and breaking time performance. Hybrid DC circuit breakers, which combine fast mechanical switches with high-power semiconductor devices, exhibit significant technical advantages, including strong current-carrying capacity, fast turn-off characteristics, and excellent current-limiting performance, providing broad application prospects in the field of DC interruption.
[0003] However, most current fast mechanical switches use an electromagnetic mechanism design, which requires multiple independent drive circuits, resulting in a complex and bulky overall structure and high switch costs. This situation greatly restricts the miniaturization and integration of circuit breakers. Utility Model Content
[0004] This utility model provides a high-speed switch and electrical equipment, which has a simple structure and low cost, and can effectively and quickly drive the moving contact and stationary contact to close or open the circuit.
[0005] The embodiments of this utility model can be implemented as follows:
[0006] In a first aspect, this utility model provides a high-speed switch, comprising:
[0007] case;
[0008] A stationary contact, wherein the stationary contact is disposed in the housing;
[0009] A moving contact, which is movably disposed within the housing;
[0010] A transmission assembly, which is movably disposed on the housing, and a moving contact is disposed on the transmission assembly;
[0011] An electromagnetic component is disposed in the housing. The electromagnetic component is used to generate a repulsive force on the transmission assembly when energized, so as to drive the moving contact to move in the direction toward the stationary contact and close the circuit; and to generate a repulsive force on the transmission assembly when energized, so as to drive the moving contact to move in the direction away from the stationary contact and open the circuit.
[0012] In an optional embodiment, the transmission assembly includes a connecting rod, a first transmission component, and a second transmission component. The first transmission component and the second transmission component are both fixedly disposed on the connecting rod, and the second transmission component is located on the side of the first transmission component away from the stationary contact. The moving contact is disposed on the first transmission component. The first transmission component, the electromagnetic component, and the second transmission component are distributed sequentially along the axial direction of the connecting rod.
[0013] The electromagnetic component is used to generate a repulsive force on the first transmission component when energized, so as to drive the connecting rod and the second transmission component to move in the direction toward the stationary contact, so as to drive the moving contact to contact the stationary contact; or it is used to generate a repulsive force on the second transmission component when energized, so as to drive the connecting rod and the first transmission component to move in the direction away from the stationary contact, so as to drive the moving contact to separate from the stationary contact.
[0014] In an optional embodiment, both the first transmission member and the second transmission member are plate-shaped, and the area of the first transmission member facing the electromagnetic member is less than or equal to the area of the second transmission member facing the electromagnetic member.
[0015] In an optional embodiment, the first transmission member is integrally formed with the moving contact.
[0016] In an optional embodiment, the transmission assembly further includes a fixing member disposed on the housing, the connecting rod passing through the fixing member, and the electromagnetic component mounted in the mounting groove of the fixing member.
[0017] In an optional embodiment, the high-speed switch further includes a holding mechanism disposed in the housing, the end of the connecting rod being connected to the holding mechanism, and the holding mechanism being used to keep the transmission assembly in the closed or open state.
[0018] In an optional embodiment, the retaining mechanism includes a mounting component, a telescopic component, a fixed shaft, and an elastic component. One end of the connecting rod is connected to the mounting component, one end of the telescopic component is rotatably disposed in the housing, and the other end is slidably engaged with the fixed shaft. The elastic component is sleeved on the telescopic component.
[0019] Alternatively, the holding mechanism includes a magnetic yoke, a permanent magnet, and a moving iron core. The magnetic yoke is disposed on the housing and surrounds the outside of the permanent magnet. The moving iron core is connected to the connecting rod and is movably disposed inside the permanent magnet. The permanent magnet is used to generate a force on the moving iron core toward or away from the stationary contact in the closed or open state.
[0020] In an optional embodiment, there are two telescopic members, which are arranged opposite to each other. Each telescopic member is provided with a sliding part and a first abutting part and a second abutting part connected to the sliding part. The sliding part is slidably engaged with the fixed shaft. When the moving contact is closed or open, the first abutting part of one of the telescopic members abuts against the second abutting part of the other telescopic member.
[0021] In an optional embodiment, the high-speed switch further includes a capacitor connected to the electromagnetic component, the capacitor being used to discharge forward or reverse to the electromagnetic component.
[0022] Secondly, this utility model provides an electrical device including a high-speed switch as described in any of the foregoing embodiments.
[0023] The beneficial effects of the high-speed switch and electrical equipment provided by this utility model embodiment include: by energizing the electromagnetic component to induce eddy currents, the electromagnetic component generates a repulsive force on the transmission component, thereby driving the transmission component to move towards or away from the stationary contact, and simultaneously driving the moving contact disposed on the transmission component to move towards or away from the stationary contact, thereby realizing the closing or opening of the moving contact with the stationary contact. It can be seen that the structure provided by this utility model embodiment is simple and low-cost, and can effectively and quickly drive the moving contact with the stationary contact to close or open. Attached Figure Description
[0024] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0025] Figure 1 A schematic diagram of a high-speed switch structure provided in an embodiment of this utility model;
[0026] Figure 2 This is a schematic diagram of the internal structure of a high-speed switch provided in an embodiment of the present invention;
[0027] Figure 3 A schematic diagram of the opening state structure of the first embodiment of the high-speed switch provided in this utility model;
[0028] Figure 4 A schematic diagram of the closed state structure of the first embodiment of the high-speed switch provided in this utility model;
[0029] Figure 5 A schematic diagram of the retaining mechanism provided for an embodiment of this utility model;
[0030] Figure 6 A schematic diagram of the open state structure of the high-speed switch in the second embodiment of this utility model;
[0031] Figure 7 A schematic diagram of the closed state structure of the second embodiment of the high-speed switch provided in this utility model.
[0032] Icons: 10-High-speed switch; 100-House; 200-Stationary contact; 300-Moving contact; 400-Transmission assembly; 410-Linking rod; 420-First transmission component; 430-Second transmission component; 500-Electromagnetic component; 600-Fixing component; 700-Retaining mechanism; 710-Mounting component; 720-Telescopic component; 721-Sliding part; 722-First abutting part; 723-Second abutting part; 730-Fixed shaft; 740-Elastic component; 750-Magnetic yoke; 760-Permanent magnet; 770-Moving iron core; 780-Sleeve. Detailed Implementation
[0033] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0034] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0035] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0036] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0037] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.
[0038] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.
[0039] With the continuous expansion of DC system capacity and the ongoing improvement of voltage levels, higher requirements are being placed on DC circuit breakers in terms of peak short-circuit current and breaking time performance. Hybrid DC circuit breakers, which combine fast mechanical switches with high-power semiconductor devices, exhibit significant technical advantages, including strong current-carrying capacity, fast turn-off characteristics, and excellent current-limiting performance, providing broad application prospects in the field of DC interruption.
[0040] However, most current fast mechanical switches use a dual electromagnetic repulsion mechanism design, which requires multiple independent drive circuits, resulting in a complex overall structure and large size, thus making the switch expensive. This situation greatly restricts the miniaturization and integration of circuit breakers.
[0041] Based on the problems existing in the current technology, please refer to Figures 1 to 5 This utility model provides a high-speed switch 10, which is applied to electrical equipment in a low-voltage DC system. The high-speed switch 10 provided in this embodiment has a simple structure, low cost, and can effectively and quickly drive the moving contact 300 and the stationary contact 200 to close or open the circuit.
[0042] In detail, the high-speed switch 10 includes a housing 100, a stationary contact 200, a moving contact 300, a transmission assembly 400, and an electromagnetic component 500.
[0043] The stationary contact 200 and the electromagnetic component 500 are both disposed in the housing 100, and the moving contact 300 is disposed in the transmission assembly 400. The transmission assembly 400 is movably disposed in the housing 100.
[0044] In this embodiment, the electromagnetic component 500 is used to generate a repulsive force on the transmission assembly 400 when energized, so as to drive the moving contact 300 to move in the direction toward the stationary contact 200 and close the circuit; and is also used to generate a repulsive force on the transmission assembly 400 when energized, so as to drive the moving contact 300 to move in the direction away from the stationary contact 200 and open the circuit.
[0045] In other words, by energizing the electromagnetic component 500, eddy current induction is generated in the electromagnetic component 500, which in turn generates a repulsive force on the transmission component 400, thereby driving the transmission component 400 to move toward or away from the stationary contact 200, and driving the moving contact 300 disposed on the transmission component 400 to move toward or away from the stationary contact 200 in sync, thereby realizing the closing or opening of the moving contact 300 and the stationary contact 200.
[0046] Therefore, the present invention provides a simple and low-cost structure that can effectively and quickly drive the moving contact 300 and the stationary contact 200 to close or open.
[0047] Optionally, the electromagnetic component 500 may be, but is not limited to, a coil structure.
[0048] Furthermore, the transmission assembly 400 includes a connecting rod 410, a first transmission member 420, and a second transmission member 430. Both the first transmission member 420 and the second transmission member 430 are fixedly disposed on the connecting rod 410, and the second transmission member 430 is located on the side of the first transmission member 420 away from the stationary contact 200. The moving contact 300 is disposed on the first transmission member 420. The first transmission member 420, the electromagnetic member 500, and the second transmission member 430 are distributed sequentially along the axial direction of the connecting rod 410.
[0049] It is worth noting that when the moving contact 300 and the stationary contact 200 are in the open state, the first transmission member 420 is close to the electromagnetic member 500, and the second transmission member 430 is far away from the electromagnetic member 500. That is, in this case, the distance between the first transmission member 420 and the electromagnetic member 500 is smaller than the distance between the second transmission member 430 and the electromagnetic member 500. However, when the moving contact 300 and the stationary contact 200 are in the closed state, the first transmission member 420 is close to the stationary contact 200 and far away from the electromagnetic member 500, and the second transmission member 430 is close to the electromagnetic member 500. That is, in this case, the distance between the first transmission member 420 and the electromagnetic member 500 is greater than the distance between the second transmission member 430 and the electromagnetic member 500.
[0050] Therefore, the electromagnetic component 500 is used to generate a repulsive force on the first transmission component 420 when energized, so as to drive the connecting rod 410 and the second transmission component 430 to move in the direction toward the stationary contact 200, so as to drive the moving contact 300 to contact the stationary contact 200; or it is used to generate a repulsive force on the second transmission component 430 when energized, so as to drive the connecting rod 410 and the first transmission component 420 to move in the direction away from the stationary contact 200, so as to drive the moving contact 300 to separate from the stationary contact 200, thereby realizing the rapid and efficient closing or opening of the moving contact 300 and the stationary contact 200.
[0051] In detail, both the first transmission member 420 and the second transmission member 430 are plate-shaped, and the area of the first transmission member 420 facing the electromagnetic member 500 is less than or equal to the area of the second transmission member 430 facing the electromagnetic member 500.
[0052] It is worth mentioning that, in order to maximize the repulsive force generated by the electromagnetic component 500 on the second transmission component 430, the area of the second transmission component 430 is equal to the area of the electromagnetic component 500. In other words, the area of the first transmission component 420 is smaller than the area of the electromagnetic component 500.
[0053] In this way, the repulsive force generated by the electromagnetic component 500 on the first transmission component 420 is less than the repulsive force generated by the electromagnetic component 500 on the second transmission component 430, ensuring that the sufficiently large repulsive force generated by the electromagnetic component 500 on the second transmission component 430 can quickly separate the moving contact 300 from the stationary contact 200. Since a large force is not required to quickly bring the moving contact 300 and stationary contact 200 into contact during closing, by designing the area of the first transmission component 420 to be smaller than the area of the second transmission component 430, the weight of the first transmission component 420 can be reduced while ensuring that the repulsive force generated by the electromagnetic component 500 on the first transmission component 420 can smoothly drive the moving contact 300 and stationary contact 200 to close.
[0054] Furthermore, the first transmission component 420 and the moving contact 300 are integrally formed.
[0055] In this embodiment, the first transmission component 420 and the moving contact 300 are manufactured using an integral molding process. This process is not only simple and low-cost, but it can also improve the structural strength of the moving contact 300 and the first transmission component 420, and reduce the number of parts connecting the first transmission component 420 and the moving contact 300, thereby improving assembly efficiency.
[0056] It should be noted that the first transmission component 420 and the second transmission component 430 are made of highly conductive metals, such as copper alloys or aluminum alloys. The first transmission component 420 and the moving contact 300 are integrally formed from highly conductive metals.
[0057] Furthermore, the transmission assembly 400 also includes a fixing member 600, which is disposed in the housing 100, the connecting rod 410 passes through the fixing member 600, and the electromagnetic component 500 is installed in the mounting groove of the fixing member 600.
[0058] In this embodiment, the connecting rod 410 passes through the fixing member 600 and the electromagnetic member 500. The opening direction of the mounting groove is perpendicular to the movement direction of the connecting rod 410 to ensure that the electromagnetic member 500 is stably installed in the fixing member 600, thereby ensuring the stability of the high-speed switch 10.
[0059] Optionally, the fastener 600 is made of epoxy resin, which not only has high structural strength but is also an insulating material to avoid affecting the electromagnetic component 500, the first transmission component 420, and the second transmission component 430.
[0060] Furthermore, the high-speed switch 10 also includes a holding mechanism 700, which is disposed in the housing 100, and the end of the connecting rod 410 is connected to the holding mechanism 700.
[0061] It should be noted that when the electromagnetic component 500 is energized to drive the transmission assembly 400 and the moving contact 300 to move synchronously until the moving contact 300 and the stationary contact 200 are about to be in the closed or open state, the electromagnetic component 500 will be de-energized to avoid the moving contact 300 and the stationary contact 200 being subjected to the force generated by the electromagnetic component 500 on the second transmission assembly 430 after the closing, which would cause the moving contact 300 and the stationary contact 200 to open again.
[0062] Furthermore, in order to ensure that the moving contact 300 driven by the electromagnetic component 500 continues to maintain the closed or open state after closing or opening with the stationary contact 200, the high-speed switch 10 is also provided with a holding mechanism 700.
[0063] In detail, the retaining mechanism 700 is disposed in the housing 100. By connecting the retaining mechanism 700 to the end of the connecting rod 410 away from the moving contact 300, when the moving contact 300 moves to contact the stationary contact 200 and is in the closed state, the retaining mechanism 700 fixes the transmission assembly 400 in the closed state through the connecting rod 410, thereby ensuring stable contact between the moving contact 300 and the stationary contact 200. Similarly, when the moving contact 300 moves to separate from the stationary contact 200 and is in the open state, the retaining mechanism 700 fixes the transmission assembly 400 in the open state through the connecting rod 410, thereby keeping the moving contact 300 and the stationary contact 200 in the open state.
[0064] Specifically, the retaining mechanism 700 includes a mounting component 710, a telescopic component 720, a fixed shaft 730, and an elastic component 740. One end of the connecting rod 410 is connected to the mounting component 710. One end of the telescopic component 720 is rotatably disposed in the housing 100, and the other end is slidably engaged with the fixed shaft 730. The elastic component 740 is sleeved on the telescopic component 720.
[0065] It is understandable that when the moving contact 300 is in the closed or open state with the stationary contact 200, the elastic element 740 is in the working state. Therefore, under this condition, when the electromagnetic element 500 drives the connecting rod 410 to move, the connecting rod 410 drives the fixed shaft 730 to move linearly, causing the telescopic element 720 to rotate around the housing 100 and shorten, thereby compressing the elastic element 740. When the telescopic element 720 is horizontal, the elastic element 740 reaches the maximum compression state. The connecting rod 410 drives the fixed shaft 730 to continue to move, causing the telescopic element 720 to continue to rotate around the housing 100 and extend, causing the elastic element 740 to extend. When the electromagnetic element 500 is de-energized, the elastic element 740 continues to extend, causing the telescopic element 720 to continue to extend. Finally, the elastic element 740 is in the working state, thereby ultimately keeping the moving contact 300 in the closed or open state with the stationary contact 200.
[0066] Furthermore, there are two telescopic members 720, which are arranged opposite to each other. Each telescopic member 720 is provided with a sliding part 721 and a first abutting part 722 and a second abutting part 723 connected to the sliding part 721. The sliding part 721 is slidably engaged with the fixed shaft 730. When the moving contact 300 is closed or open, the first abutting part 722 of one telescopic member 720 abuts against the second abutting part 723 of the other telescopic member 720. At this time, the connecting rod 410 stops moving and the elastic member 740 is in working state.
[0067] Specifically, one of the telescopic members 720 is provided with two first abutting parts 722, and the other telescopic member 720 is provided with two corresponding second abutting parts 723.
[0068] like Figure 5 As shown, when the moving contact 300 and the stationary contact 200 are in the closed state, one of the first abutting parts 722 of the left telescopic member 720 abuts against one of the second abutting parts 723 of the right telescopic member 720, thereby limiting their movement; while when the moving contact 300 and the stationary contact 200 are in the open state, the other first abutting part 722 of the left telescopic member 720 abuts against the other second abutting part 723 of the right telescopic member 720, thereby limiting their movement.
[0069] Furthermore, one of the telescopic members 720 has two first abutting parts 722 on the upper and lower parts of the front side, and two second abutting parts 723 on the upper and lower parts of the rear side; the other telescopic member 720 has two corresponding second abutting parts 723 on the upper and lower parts of the front side, and two corresponding first abutting parts 722 on the upper and lower parts of the rear side, making the limiting more stable.
[0070] Furthermore, in other embodiments of this utility model, the retaining mechanism 700 may also be a permanent magnet mechanism.
[0071] like Figure 6 and Figure 7 As shown, the holding mechanism 700 includes a magnetic yoke 750, a permanent magnet 760, a moving iron core 770, and a sleeve 780. The magnetic yoke 750 is disposed in the housing 100 and is arranged around the outside of the permanent magnet 760. The moving iron core 770 is connected to the connecting rod 410 and is movably disposed inside the permanent magnet 760. In order to ensure that the moving iron core 770 can move stably relative to the permanent magnet 760, a sleeve 780 is also provided between the permanent magnet 760 and the moving iron core 770.
[0072] Therefore, when the moving contact 300 is separated from the stationary contact 200 and is in the open state, the magnetic circuit generated by the permanent magnet 760 is as follows: Figure 6As shown, in this case, the magnetic force generated by the permanent magnet 760 acts on the moving iron core 770, causing the moving iron core 770 to tend to move away from the stationary contact 200, thereby keeping the moving contact 300 and the stationary contact 200 in the open state.
[0073] When the moving contact 300 is separated from the stationary contact 200 and is in the closed state, the magnetic circuit generated by the permanent magnet 760 is as follows: Figure 7 As shown, the magnetic force generated by the permanent magnet 760 acts on the moving iron core 770, causing the moving iron core 770 to tend to move toward the stationary contact 200, thereby keeping the moving contact 300 and the stationary contact 200 in a closed state.
[0074] It is worth mentioning that the magnetic yoke 750 consists of an upper magnetic yoke cover and a lower magnetic yoke base, and the sleeve 780 can be made of stainless steel.
[0075] Furthermore, the high-speed switch 10 also includes a capacitor (not shown in the figure), which is connected to the electromagnetic component 500 and is used to discharge to the electromagnetic component 500 in the forward or reverse direction.
[0076] It is worth mentioning that the capacitor can be a pre-charged capacitor with a specification of 2000μF / 2000V. The capacitor discharges to the electromagnetic component 500 and generates current, so that in the open state, the first transmission component 420 is driven by eddy current repulsion to move the moving contact 300 toward the stationary contact 200 until the moving contact 300 contacts the stationary contact 200. Similarly, the capacitor can also discharge to the electromagnetic component 500 to generate current, so that in the closed state, the second transmission component 430 is driven by eddy current repulsion to move the moving contact 300 away from the stationary contact 200 until the moving contact 300 and the stationary contact 200 are completely separated.
[0077] In summary, this utility model embodiment provides a high-speed switch 10. By energizing the electromagnetic component 500, eddy current induction is generated in the electromagnetic component 500, which in turn generates a repulsive force on the transmission component 400. This drives the transmission component 400 to move toward or away from the stationary contact 200, and simultaneously drives the moving contact 300, which is disposed on the transmission component 400, to move toward or away from the stationary contact 200, thereby achieving the closing or opening of the circuit between the moving contact 300 and the stationary contact 200. It is evident that the structure provided by this utility model embodiment is simple and low-cost, and can effectively and quickly close or open the circuit between the moving contact 300 and the stationary contact 200.
[0078] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.
Claims
1. A high-speed switch, characterized in that, include: Casing (100); A stationary contact (200) is disposed in the housing (100); A movable contact (300) is movably disposed in the housing (100); A transmission assembly (400) is movably disposed in the housing (100), and a moving contact (300) is disposed in the transmission assembly (400); An electromagnetic component (500) is disposed in the housing (100). The electromagnetic component (500) is used to generate a repulsive force on the transmission assembly (400) when energized, so as to drive the moving contact (300) to move in a direction toward the stationary contact (200) and close the circuit; and to generate a repulsive force on the transmission assembly (400) when energized, so as to drive the moving contact (300) to move in a direction away from the stationary contact (200) and open the circuit.
2. The high-speed switch according to claim 1, characterized in that, The transmission assembly (400) includes a connecting rod (410), a first transmission member (420), and a second transmission member (430). The first transmission member (420) and the second transmission member (430) are both fixedly disposed on the connecting rod (410), and the second transmission member (430) is located on the side of the first transmission member (420) away from the stationary contact (200). The moving contact (300) is disposed on the first transmission member (420). The first transmission member (420), the electromagnetic member (500), and the second transmission member (430) are distributed sequentially along the axial direction of the connecting rod (410). The electromagnetic component (500) is used to generate a repulsive force on the first transmission component (420) when energized, so as to drive the connecting rod (410) and the second transmission component (430) to move in the direction toward the stationary contact (200), so as to drive the moving contact (300) to contact the stationary contact (200); or it is used to generate a repulsive force on the second transmission component (430) when energized, so as to drive the connecting rod (410) and the first transmission component (420) to move in the direction away from the stationary contact (200), so as to drive the moving contact (300) to separate from the stationary contact (200).
3. The high-speed switch according to claim 2, characterized in that, Both the first transmission member (420) and the second transmission member (430) are plate-shaped, and the area of the first transmission member (420) facing the electromagnetic member (500) is less than or equal to the area of the second transmission member (430) facing the electromagnetic member (500).
4. The high-speed switch according to claim 2, characterized in that, The first transmission component (420) and the moving contact (300) are integrally formed.
5. The high-speed switch according to claim 2, characterized in that, The transmission assembly (400) further includes a fixing member (600), which is disposed in the housing (100), the connecting rod (410) passes through the fixing member (600), and the electromagnetic component (500) is installed in the mounting groove of the fixing member (600).
6. The high-speed switch according to claim 2, characterized in that, The high-speed switch also includes a holding mechanism (700), which is disposed in the housing (100). The end of the connecting rod (410) is connected to the holding mechanism (700), and the holding mechanism (700) is used to keep the transmission assembly (400) in the closed or open state.
7. The high-speed switch according to claim 6, characterized in that, The retaining mechanism (700) includes a mounting component (710), a telescopic component (720), a fixed shaft (730), and an elastic component (740). One end of the connecting rod (410) is connected to the mounting component (710). One end of the telescopic component (720) is rotatably disposed on the housing (100), and the other end is slidably engaged with the fixed shaft (730). The elastic component (740) is sleeved on the telescopic component (720). Alternatively, the holding mechanism (700) includes a magnetic yoke (750), a permanent magnet (760), and a moving iron core (770). The magnetic yoke (750) is disposed on the housing (100) and surrounds the outside of the permanent magnet (760). The moving iron core (770) is connected to the connecting rod (410) and is movably disposed inside the permanent magnet (760). The permanent magnet (760) is used to generate a force on the moving iron core (770) towards or away from the stationary contact (200) in the closed or open state.
8. The high-speed switch according to claim 7, characterized in that, There are two telescopic members (720), which are arranged opposite to each other. Each telescopic member (720) is provided with a sliding part (721) and a first abutting part (722) and a second abutting part (723) connected to the sliding part (721). The sliding part (721) is slidably engaged with the fixed shaft (730). When the moving contact (300) is closed or open, the first abutting part (722) of one telescopic member (720) abuts against the second abutting part (723) of the other telescopic member (720).
9. The high-speed switch according to claim 1, characterized in that, The high-speed switch also includes a capacitor connected to the electromagnetic component (500), which is used to discharge to the electromagnetic component (500) in the forward or reverse direction.
10. An electrical device, characterized in that, Including the high-speed switch as described in any one of claims 1-9.