Three-phase linkage quick switch and circuit breaker

Abstract

The invention discloses a three-phase linkage high-speed switch and a circuit breaker, and belongs to the technical field of circuit breakers, the three-phase linkage high-speed switch comprises a plurality of repulsive force mechanisms arranged in a split-phase manner, each repulsive force mechanism comprises a pulling piece, the pulling piece has an opening position and a closing position, and the pulling piece is configured to be capable of performing displacement switching between the opening position and the closing position by means of electromagnetic repulsive force; the linkage mechanism comprises a plurality of transmission assemblies and synchronizing parts connected with the adjacent transmission assemblies, the transmission assemblies are in transmission connection with the pulling parts, the synchronizing parts are connected with the two adjacent transmission assemblies, and the plurality of pulling parts are synchronously displaced through the transmission assemblies and the synchronizing parts so as to be synchronously switched to the opening position or the closing position; and the auxiliary switch is in transmission connection with any synchronous part so as to synchronously transmit the opening signal or the closing signal. Three-phase integrated linkage arrangement is achieved through the repulsive force mechanism and the linkage mechanism, meanwhile, the auxiliary switch is synchronously connected with the linkage mechanism, synchronous opening and closing are achieved, and the interface and use requirements of a traditional circuit breaker product are met.

Description

Technical Field

[0001] This application belongs to the technical field of circuit breakers, and particularly relates to a three-phase linkage quick switch and a circuit breaker. Background Art

[0002] At present, quick switch products based on the principle of electromagnetic repulsion are benefiting from their rapidity and are receiving increasing attention in solving problems such as AC power grid short circuits, current over - standard, voltage sags, and fast power source switching. With the popularization of the application of quick switch products in the AC power grid, three - phase quick switch products emerge in an endless stream. In most scenarios, there is a need to replace traditional circuit breakers, and their mechanism sizes and signal interfaces need to be compatible with conventional products.

[0003] Traditional circuit breaker mechanisms mostly adopt a single operating mechanism. Due to its quick - acting property, the electromagnetic repulsion mechanism currently mostly adopts a single - phase mechanism direct - acting independent layout. The overall mechanism is arranged below the single - phase break, resulting in an oversized mechanism box, which is not conducive to on - site installation and layout. Moreover, auxiliary switches, etc., need to be independently arranged by phase and cannot be compatible with the interfaces shared by the three phases of traditional circuit breakers. Summary of the Invention

[0004] Object of the Invention: The embodiments of this application provide a three - phase linkage quick switch, aiming to solve the above - mentioned technical problems; another object of this application is to provide a circuit breaker applying the above - mentioned three - phase linkage quick switch.

[0005] Technical Solution: The three - phase linkage quick switch described in the embodiments of this application includes:

[0006] A plurality of repulsion mechanisms, the plurality of repulsion mechanisms are arranged by phase. The repulsion mechanism includes a pulling member, and the pulling member has a tripping position and a closing position. The pulling member is configured to be able to displace and switch between the tripping position and the closing position relying on electromagnetic repulsion.

[0007] A linkage mechanism, the linkage mechanism includes a plurality of transmission components and a synchronizing member connecting adjacent transmission components. The plurality of transmission components correspond to the plurality of pulling members one by one, and the transmission components are in transmission connection with the pulling members. The synchronizing member connects two adjacent transmission components. The plurality of pulling members are displaced synchronously through the transmission components and the synchronizing member to synchronously switch to the tripping position or the closing position.

[0008] An auxiliary switch, the auxiliary switch is in transmission connection with any one of the synchronizing members to synchronously transmit a tripping signal or a closing signal.

[0009] In some embodiments, the repulsive force mechanism further includes a base frame, an insulating pipe fitting, and an electromagnetic repulsive force assembly. The insulating pipe fitting, the base frame, and the electromagnetic repulsive force assembly are arranged in sequence in a first direction. The insulating pipe fitting and the electromagnetic repulsive force assembly are respectively fixedly connected to the base frame. The pulling member connects the electromagnetic repulsive force assembly and the insulating pipe fitting, and the electromagnetic repulsive force assembly is configured to be able to drive the pulling member to displace in the first direction.

[0010] In some embodiments, the pulling member includes a connecting portion and at least two abutting portions spaced apart from each other in the first direction on the connecting portion. The connecting portion is respectively connected to the insulating pipe fitting and the electromagnetic repulsive force assembly.

[0011] The transmission assembly includes:

[0012] A swinging member having corresponding two ends. One end of the swinging member is pivotally connected to the base frame, and the other end of the swinging member is located between the two abutting portions.

[0013] A first linkage member having corresponding two ends. One end of the first linkage member is fixedly connected to the swinging member and pivotally rotates concentrically with the swinging member.

[0014] A connecting member pivotally connected to the other end of the first linkage member, and the connecting member is connected to the synchronizing member.

[0015] When the pulling member switches between the opening position and the closing position, one of the abutting portions pushes against the swinging member to drive a plurality of the pulling members to synchronously displace through the first linkage member, the connecting member, and the synchronizing member.

[0016] In some embodiments, the three-phase linkage quick switch further includes a buffer assembly. The buffer assembly includes:

[0017] A second linkage member having one end fixedly connected to the swinging member and pivotally rotating concentrically with the swinging member.

[0018] At least two buffer members connected to the base frame. At least two of the buffer members are respectively located on both sides of the rotation direction of the second linkage member, and the buffer members are configured to be elastically abutted by the second linkage member.

[0019] In some embodiments, the buffer member includes:

[0020] A sleeve fixedly connected to the base frame.

[0021] A hydraulic buffer is arranged in the sleeve, the hydraulic buffer has a piston portion facing the second linkage member, and the hydraulic buffer can be adjustably connected to the sleeve to adjust the distance between the piston portion and the second linkage member.

[0022] In some embodiments, the three-phase linkage fast switch further includes a box and an opening and closing indication component;

[0023] The insulating pipe is arranged outside the box and connected to the box, and the base frame, the electromagnetic repulsion component and the linkage mechanism are all arranged inside the box;

[0024] The opening and closing indication component comprises:

[0025] A dial, the dial is connected outside the box, and a pointer is pivotally connected to the dial;

[0026] A torsion member, one end of which is fixedly connected to the pointer and pivots concentrically with the pointer;

[0027] A toggle member, the toggle member is fixedly connected to the synchronous member, and the toggle member is configured to move with the synchronous member and to toggle the torsion member to drive the pointer to pivot;

[0028] An opening mark and a closing mark are provided outside the box body, and when the pulling member is located at the opening position, the pointer points to the opening mark, and when the pulling member is located at the closing position, the pointer points to the closing mark.

[0029] In some embodiments, a plurality of the repulsion mechanisms are spaced apart in a second direction, and the second direction intersects the first direction.

[0030] In some embodiments, one end of the swinging member located between the two abutting portions is provided with a first ball head for abutting against the abutting portions.

[0031] In some embodiments, one end of the second linkage member located between the two buffer members is provided with a second ball head for the buffer members to elastically abut against.

[0032] Correspondingly, a circuit breaker described in an embodiment of the present application includes the above-mentioned three-phase linked fast switch.

[0033] Beneficial effect: The three-phase linked fast switch of the embodiment of the present application includes multiple repulsion mechanisms, linkage mechanisms and auxiliary switches, wherein the multiple repulsion mechanisms are arranged in phases, the repulsion mechanism includes a pulling member, the pulling member has an opening position and a closing position, and the pulling member is configured to be able to shift and switch between the opening position and the closing position by relying on electromagnetic repulsion; the linkage mechanism includes multiple transmission components and synchronous components connecting adjacent transmission components, the multiple transmission components correspond to the multiple pulling members one by one, the transmission component transmission connects the pulling member, the synchronous component connects two adjacent transmission components, and the multiple pulling members are synchronously displaced through the transmission component and the synchronous component to synchronously switch to the opening position or the closing position; the auxiliary switch transmission connects any synchronous component to synchronously transmit the opening signal or the closing signal; the three-phase integrated linkage arrangement is realized by utilizing the repulsion mechanism and the linkage mechanism, and the auxiliary switch is synchronously connected to the linkage mechanism to realize synchronous opening and closing, which meets the interface and usage requirements of traditional circuit breaker products. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0035] Figure 1 This is a schematic diagram of the structure of the three-phase linkage fast switch in the embodiment of the present application without a box;

[0036] Figure 2 yes Figure 1 A partial enlarged view of part A;

[0037] Figure 3 This is a structural schematic diagram of an embodiment of the present application for illustrating the connection between a box body and a repulsion mechanism;

[0038] Figure 4 It is a schematic diagram of a partial structure of a buffer component according to an embodiment of the present application;

[0039] Figure 5 This is a schematic diagram of the structure of the box, the dial and the opening and closing marks used in the embodiment of the present application;

[0040] Figure 6 yes Figure 3 A partial enlarged view of part B;

[0041] Figure numerals: 1, repulsion mechanism; 10, pulling member; 100, connecting part; 101, abutting part; 11, base frame; 110, first vertical plate; 111, second vertical plate; 112, third vertical plate; 113, fourth vertical plate; 12, insulating pipe; 13, electromagnetic repulsion assembly; 2, linkage mechanism; 20, transmission assembly; 200, swinging member; 2000, first ball head; 201, first linkage member; 202, connecting member; 203, first rotating shaft; 21, synchronization member; 3, auxiliary opening 1. a first direction; 2. a second direction; 3. a second second direction; 4. a second second direction; 5. a second second direction; 6. a second second direction; 7. a second second direction; 8. a second second direction; 9. a second second direction; 10. a first direction; 11. a second second direction; 12. a second second direction; 13. a second second direction; 14. a second second direction; 15. a second second direction; 16. a second second direction; 17. a first direction; 18. a second second direction; 19. a first direction; 20. a second second direction; 21. a second second direction; 22. a second second direction; 23. a second second direction; 24. a first direction; 25. a second second direction; 26. a first direction; 27. a first direction; 28. a first direction; 29. ​​a first direction; 30. a first direction; 31. a second direction; 32. a first direction; 33. a first direction; 34. a first direction; 35. a first direction; 36. a first direction; 37. a first direction; 38. a first direction; 39. a first direction; 40. a first direction; 41. a first direction; 42. a first direction; 43. a first direction; 44. a first direction; 45. a first direction; 46. a first direction; 47. a first direction; 48. a first direction; 49. a first direction; 50. a first direction; 51. a first direction; 52. a first direction; 53. a first direction; 54. a first direction; 55. a first direction; 56. a first direction; 57. a first direction; 58. a first direction; 59. a first direction; 60. a first direction DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0043] In the description of the present application, it should be understood that the terms "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more features. In the description of the present application, "multiple" means two or more, and at least one means one, two or more, unless otherwise clearly and specifically defined.

[0044] The applicant noted that conventional circuit breaker mechanisms mostly use a single operating mechanism. Due to its rapidity, the electromagnetic repulsion mechanism currently mostly uses a single-phase mechanism direct-acting independent arrangement. The entire mechanism is arranged below the single-phase fracture, resulting in an oversized mechanism box, which is not conducive to on-site installation and arrangement.

[0045] In addition, the auxiliary switch and the mechanical closing and opening indicators need to be arranged separately for each phase and cannot be compatible with the interfaces shared by the three phases of traditional circuit breakers. Therefore, there are certain technical bottlenecks in the existing fast switch structures.

[0046] In view of this, embodiments of the present application disclose a three-phase linkage fast switch, which can solve at least one of the above defects.

[0047] Referring to Figures 1 to 6 , a three-phase linkage fast switch includes a plurality of repulsive force mechanisms 1, a linkage mechanism 2, and an auxiliary switch 3. Among them, the plurality of repulsive force mechanisms 1 are arranged separately for each phase. The repulsive force mechanism 1 includes a pulling member 10, and the pulling member 10 has an opening position and a closing position. The pulling member 10 is configured to be able to displace and switch between the opening position and the closing position by relying on electromagnetic repulsion force; the linkage mechanism 2 includes a plurality of transmission components 20 and a synchronizing member 21 connecting adjacent transmission components 20. The plurality of transmission components 20 correspond to the plurality of pulling members 10 one by one, and the transmission component 20 is drivingly connected to the pulling member 10. The synchronizing member 21 connects two adjacent transmission components 20. The plurality of pulling members 10 are synchronously displaced through the transmission components 20 and the synchronizing member 21 to synchronously switch to the opening position or the closing position; the auxiliary switch 3 is drivingly connected to any one of the synchronizing members 21 to synchronously transmit an opening signal or a closing signal.

[0048] By using the repulsive force mechanism 1 and the linkage mechanism 2 to achieve a three-phase integrated linkage arrangement, and at the same time synchronously connecting the auxiliary switch 3 with the linkage mechanism 2 to achieve synchronous closing and opening, it meets the product interfaces and usage requirements of traditional circuit breakers. The designed structure of this embodiment does not need to rely on additional electrical components, improves the reliability of synchronous closing and opening, and reduces the manufacturing cost.

[0049] Specifically, in some embodiments, referring to Figures 1 to 6 , the repulsive force mechanism 1 further includes a base frame 11, an insulating pipe fitting 12, and an electromagnetic repulsive force assembly 13. In addition, the three-phase linkage fast switch in this embodiment further includes a box body 5. The insulating pipe fitting 12 is arranged on the top surface of the box body 5 and connected to the box body 5. The base frame 11, the electromagnetic repulsive force assembly 13, and the linkage mechanism 2 are all arranged inside the box body 5. The insulating pipe fitting 12, the base frame 11, and the electromagnetic repulsive force assembly 13 are sequentially arranged in the first direction X, and the insulating pipe fitting 12 and the electromagnetic repulsive force assembly 13 are respectively fixedly connected to the base frame 11. The pulling member 10 is connected to the electromagnetic repulsive force assembly 13 and the insulating pipe fitting 12, and the electromagnetic repulsive force assembly 13 is configured to be able to drive the pulling member 10 to displace in the first direction X.

[0050] It should be noted that in the present embodiment, the electromagnetic repulsion component 13 can use an electromagnetic coil and an elastic bistable structure to control the displacement of the pulling member 10 to achieve the opening and closing operation, and the electromagnetic repulsion generated by the electromagnetic coil is one of the key mechanisms. That is, a coil (electromagnet) can be set in the electromagnetic repulsion component 13, and this coil can be energized by turning on or off. When the coil is energized, the magnetic field generated and the permanent magnet in the elastic bistable structure repel each other. That is, the pulling member 10 is pushed upward by the repulsive force, thereby achieving closing. When the coil is de-energized, the repulsive force disappears, and the mechanical elastic effect causes the elastic bistable structure to drive the pulling member 10 to move downward, thereby achieving opening. The on and off of the current will change the magnetic field of the electromagnet, and then change the repulsive force between the permanent magnets between the elastic bistable structure and the pulling member 10. The regulation of this repulsive force can achieve the stable opening and closing movement of the pulling member 10. The principle of driving the pulling member 10 to open and close by electromagnetic repulsion and elastic bistable structure in the present embodiment is a prior art and will not be repeated here.

[0051] In addition, in this embodiment, referring to Figures 1 to 6 , a plurality of repulsion mechanisms 1 are arranged at intervals in the second direction Y, the second direction Y intersects with the first direction X, and similarly, the synchronizers 21 are arranged at intervals in the second direction Y to connect between adjacent repulsion mechanisms 1 and the transmission assembly 20. The base frame 11 includes a first vertical plate 110 and a second vertical plate 111 arranged at intervals in a horizontal direction intersecting the first direction X and the second direction Y, and a third vertical plate 112 and a fourth vertical plate 113 arranged at intervals in the second direction Y.

[0052] The pulling member 10 includes a connecting portion 100 and at least two abutting portions 101 spaced apart on the connecting portion 100 in the first direction X, and the connecting portion 100 is respectively connected to the insulating tube 12 and the electromagnetic repulsion component 13. In this embodiment, the pulling member 10 can be realized by using a shaft sleeve having two abutting portions 101 on the rod and in the first direction X, and the shaft sleeve is fixed on the rod by a nut to fix the positions of the two abutting portions 101.

[0053] Reference Figure 2 The transmission assembly 20 includes a swinging member 200, a first linkage member 201 and a connecting member 202. The swinging member 200 has two corresponding ends, one end of the swinging member 200 is pivotally connected to the first vertical plate 110 of the base frame 11 through a first rotating shaft 203, and the other end of the swinging member 200 is located between the two abutting portions 101; the first linkage member 201 has two corresponding ends, one end of the first linkage member 201 is fixedly connected to the swinging member 200 and pivots concentrically with the swinging member 200. Specifically, the first linkage member 201 is arranged on a side of the first vertical plate 110 away from the swinging member 200, the first rotating shaft 203 passes through the first vertical plate 110, and the first linkage member 201 is fixedly connected to the first rotating shaft 203 to achieve concentric pivoting with the swinging member 200.

[0054] One end of the first linkage 201 away from the first rotating shaft 203 extends upward and is pivotally connected to the connecting member 202, and the connecting member 202 is connected to the synchronizing member 21. It can be understood that in this embodiment, taking three repulsive force mechanisms 1, i.e., three phases, as an example, the connecting members 202 located on both sides in the second direction Y are connected to a single synchronizing member 21, while the connecting member 202 located in the middle is connected to two synchronizing members 21 at the same time to realize the synchronous displacement of the three pulling members 10. Specifically, in the first direction X, when the pulling member 10 switches its displacement between the opening position and the closing position, one of the abutting portions 101 abuts against the swinging member 200, so as to drive the plurality of pulling members 10 to synchronously displace through the first linkage 201, the connecting member 202 and the synchronizing member 21. That is, the displacement of the pulling member 10 is transmitted via the swinging of the swinging member 200, the first linkage 201, the connecting member 202 and the synchronizing member 21 through the abutting portion 101, so that each pulling member 10 can move integrally.

[0055] In addition, it should be noted that with reference to Figure 2 , in this embodiment, a first ball head 2000 for the abutting portion 101 to abut against is provided at one end of the swinging member 200 located between the two abutting portions 101. The ball head structure is used to reduce the wear of the swinging member 200 in contact with the two abutting portions 101.

[0056] In some embodiments, with reference to Figures 1 to 4 , the three-phase linkage quick switch further includes a buffer assembly 4, and the buffer assembly 4 includes a second linkage 40 and at least two buffer members 41. In this embodiment, taking two buffer members 41 provided on each repulsive force mechanism 1 as an example, the number of buffer members 41 can also be flexibly increased or decreased according to needs in other embodiments.

[0057] One end of the second linkage 40 is fixedly connected to the swinging member 200 and pivotally rotates concentrically with the swinging member 200. Specifically, the first rotating shaft 203 penetrates to the side of the second vertical plate 111 away from the first vertical plate 110, and one end of the second linkage 40 is concentrically pivotally connected to the swinging member 200 by fixedly connecting the first rotating shaft 203. The other end of the second linkage 40 extends upward and is located between the two buffer members 41.

[0058] The buffer member 41 is configured to be elastically abutted against by the second linkage 40. Specifically, with reference to Figure 4In this embodiment, the buffer 41 includes a sleeve 410 and a hydraulic buffer 411. The sleeve 410 is fixedly connected to the base frame 11, that is, the sleeve 410 located on the side of the third vertical plate 112 is fixedly connected to the third vertical plate 112, and the sleeve 410 located on the side of the fourth vertical plate 113 is fixedly connected to the fourth vertical plate 113, and the two sleeves 410 are coaxially arranged in the second direction Y. The hydraulic buffer 411 is arranged in the sleeve 410, and the hydraulic buffer 411 has a piston part 4110 facing the second linkage member 40, and the hydraulic buffer 411 can adjust the connection sleeve 410 to adjust the distance between the piston part 4110 and the second linkage member 40.

[0059] Specifically, in this embodiment, the hydraulic buffer 411 can be connected to the inner wall of the sleeve 410 through a thread, and by rotating and adjusting the hydraulic buffer 411, the distance between the piston part 4110 and the third linkage member can be flexibly adjusted, thereby adjusting the time for the hydraulic buffer 411 to buffer the opening and closing process, thereby adjusting to obtain the best buffering effect. The buffering principle of the hydraulic buffer 411 is a prior art and will not be repeated here.

[0060] In addition, in some embodiments, reference Figure 4 The second linkage member 40 is provided with a second ball head 400 at one end between the two buffer members 41 for the buffer member 41 to elastically abut against. Similarly, the wear between the piston portion 4110 and the second linkage member 40 can be reduced through the ball head structure design.

[0061] By providing the hydraulic buffer 411, the strength of the various mechanisms during the closing collision is reduced, the closing bounce is reduced, and the stability and service life of the overall three-phase linkage fast switch are improved.

[0062] In addition, in some embodiments, reference Figure 3 , Figure 5 and Figure 6 The three-phase linkage fast switch also includes an opening and closing indication assembly 6, which includes a dial 60, a base 67, a torsion member 62, a toggle member 63, an opening mark 64, and a closing mark 65. The dial 60 is connected to the outside of the box 5, and a pointer 61 is pivotally connected to the center of the dial 60 through a second rotating shaft 66. The pointer 61 and the second rotating shaft 66 are connected to the box 5 through the base 67 structure and keep pivoting.

[0063] One end of the torsion member 62 is fixedly connected to the second rotating shaft 66 to achieve fixed connection with the pointer 61 and coaxial pivoting, and the other end of the torsion member 62 is penetrated by a guide groove 620 toward the side away from the second rotating shaft 66. The toggle member 63 includes a fixed portion 630 and a lever 631, wherein the fixed portion 630 is fixedly connected to the synchronous member 21 relative to the torsion member 62, and the lever 631 extends toward the torsion member 62 into the guide groove 620, and is limited and guided by the guide groove 620 to slide. Specifically, the toggle member 63 can move with the synchronous member 21 and toggle the torsion member 62, that is, the guide groove 620 is intended to avoid hindering the longitudinal displacement of the lever 631, so as to achieve synchronous driving of the pointer 61 to pivot.

[0064] Correspondingly, such as Figure 5 As shown, in this embodiment, the above-mentioned opening mark 64 and closing mark 65 are sequentially arranged outside the box body 5 and below the dial 60 in the second direction Y. When the pulling member 10 is in the opening position, the pointer 61 points to the opening mark 64, and when the pulling member 10 is in the closing position, the pointer 61 points to the closing mark 65, thereby realizing the opening and closing indication function.

[0065] The specific process is as follows: in this embodiment, when closing the switch, the pulling member 10 moves upward, and when opening the switch, the pulling member 10 moves downward. When each phase is in the open state, the first ball head 2000 of each swinging member 200 contacts the resistance part 101 located above. When closing the switch, after the pulling member 10 moves upward for a certain distance, the resistance part 101 below contacts the swinging member 200, driving the swinging member 200 to rotate upward. The swinging member 200 drives the first rotating shaft 203, the first linkage member 201 and the second linkage member 40 to rotate accordingly. The second linkage member 40 rotates to push the piston part 4110, and then pushes the hydraulic buffer 411 on one side. The reaction force of the hydraulic buffer 411 reduces the terminal speed of closing the switch, thereby reducing the intensity of the closing collision, reducing the closing bounce and improving the stability and service life of the fast switch.

[0066] The first linkage member 201, the connecting member 202 and the synchronizing member 21 move synchronously, which, on the one hand, drives the auxiliary switch 3 to change from an opening signal to a closing signal, and at the same time drives the swinging members 200 of other repulsive mechanisms 1, so that the pulling members 10 of each repulsive mechanism 1 move upward to achieve synchronous closing.

[0067] When the gate is opened, after the pulling member 10 moves downward for a certain distance, the upper resistance part 101 contacts the swing member 200, driving the swing member 200 to rotate downward, and the swing member 200 drives the first rotating shaft 203, the first linkage member 201 and the second linkage member 40 to rotate accordingly. The second linkage member 40 rotates to push the piston part 4110, and then pushes the hydraulic buffer 411 on one side. The reaction force of the hydraulic buffer 411 reduces the terminal speed of the gate opening.

[0068] The first linkage member 201, the connecting member 202, and the synchronizing member 21 move synchronously, driving the auxiliary switch 3 to change the closing signal to the opening signal, and at the same time driving the swing member 200 of other repulsive force mechanisms 1, so that the pulling members 10 of the respective repulsive force mechanisms 1 move downward to achieve synchronous opening.

[0069] During the opening and closing process, the left and right movement of the synchronizing member 21 drives the pointer 61 to rotate, so as to point to the opening mark 64 and the closing mark 65 below the dial 60, realizing the function of opening and closing indication.

[0070] Correspondingly, a circuit breaker according to an embodiment of the present application includes the above-mentioned three-phase linkage quick switch. It can be understood that the circuit breaker can have all the technical features and corresponding beneficial effects of the above-mentioned three-phase linkage quick switch, which will not be elaborated here.

[0071] The above has introduced in detail a three-phase linkage quick switch and a circuit breaker provided by an embodiment of the present application, and specific examples have been used to elaborate the principle and implementation manner of the present application. The description of the above embodiments is only used to help understand the technical solution and its core idea of the present application; those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A three-phase linkage quick switch, characterized in that, include: A plurality of repulsive force mechanisms (1), wherein the plurality of repulsive force mechanisms (1) are arranged in phases, wherein the repulsive force mechanism (1) comprises a pulling member (10), and the pulling member (10) has an opening position and a closing position, and the pulling member (10) is configured to be able to shift and switch between the opening position and the closing position by means of electromagnetic repulsive force; A linkage mechanism (2), the linkage mechanism (2) comprising a plurality of transmission assemblies (20) and a synchronizing member (21) connecting adjacent transmission assemblies (20), the plurality of transmission assemblies (20) corresponding to the plurality of pulling members (10) one by one, the transmission assemblies (20) being transmission-connected to the pulling members (10), the synchronizing member (21) connecting two adjacent transmission assemblies (20), the plurality of pulling members (10) being synchronously displaced by the transmission assemblies (20) and the synchronizing member (21) so as to be synchronously switched to the opening position or the closing position; An auxiliary switch (3), wherein the auxiliary switch (3) is transmission-connected to any of the synchronous components (21) to synchronously transmit an opening signal or a closing signal.

2. The three-phase linkage fast switch according to claim 1, characterized in that: The repulsion mechanism (1) further comprises a base frame (11), an insulating pipe (12) and an electromagnetic repulsion assembly (13); the insulating pipe (12), the base frame (11) and the electromagnetic repulsion assembly (13) are arranged in sequence in a first direction (X), and the insulating pipe (12) and the electromagnetic repulsion assembly (13) are respectively fixedly connected to the base frame (11); the pulling member (10) connects the electromagnetic repulsion assembly (13) and the insulating pipe (12), and the electromagnetic repulsion assembly (13) is configured to be able to drive the pulling member (10) to move in the first direction (X).

3. The three-phase linkage fast switch according to claim 2, characterized in that: The pulling member (10) comprises a connecting portion (100) and at least two abutting portions (101) arranged on the connecting portion (100) at intervals in the first direction (X), and the connecting portion (100) is respectively connected to the insulating tube (12) and the electromagnetic repulsion component (13); The transmission assembly (20) comprises: A swinging member (200), the swinging member (200) having two corresponding ends, one end of the swinging member (200) being pivotally connected to the base frame (11), and the other end of the swinging member (200) being located between the two abutting portions (101); A first linkage member (201), the first linkage member (201) having two corresponding ends, one end of the first linkage member (201) being fixedly connected to the swing member (200) and pivoting coaxially with the swing member (200); A connecting member (202), the connecting member (202) being pivotally connected to the other end of the first linkage member (201), and the connecting member (202) being connected to the synchronization member (21); When the pulling member (10) is displaced and switched between the opening position and the closing position, one of the abutting parts (101) pushes against the swinging member (200), so as to drive the multiple pulling members (10) to displace synchronously through the first linkage member (201), the connecting member (202) and the synchronizing member (21).

4. The three-phase linkage fast switch according to claim 3, characterized in that: The three-phase linkage fast switch further comprises a buffer component (4), wherein the buffer component (4) comprises: A second linkage member (40), one end of which is fixedly connected to the swing member (200) and pivots coaxially with the swing member (200); At least two buffer members (41), the buffer members (41) are connected to the base frame (11), the at least two buffer members (41) are respectively located on both sides of the rotation direction of the second linkage member (40), and the buffer members (41) are configured to allow the second linkage member (40) to elastically abut against them.

5. The three-phase linkage fast switch according to claim 4, characterized in that: The buffer member (41) comprises: A sleeve (410), wherein the sleeve (410) is fixedly connected to the base frame (11); A hydraulic buffer (411), wherein the hydraulic buffer (411) is disposed in the sleeve (410), the hydraulic buffer (411) has a piston portion (4110) facing the second linkage member (40), and the hydraulic buffer (411) can be adjusted to be connected to the sleeve (410) to adjust the distance between the piston portion (4110) and the second linkage member (40).

6. The three-phase linkage fast switch according to claim 3, characterized in that: The three-phase linkage fast switch also includes a box (5) and an opening and closing indication component (6); The insulating pipe (12) is arranged outside the box (5) and connected to the box (5); the base frame (11), the electromagnetic repulsion component (13) and the linkage mechanism (2) are all arranged inside the box (5); The opening and closing indication component (6) comprises: A dial (60), the dial (60) being connected to the outside of the box (5), and a pointer (61) being pivotally connected to the dial (60); A torsion member (62), one end of which is fixedly connected to the pointer (61) and pivots coaxially with the pointer (61); A toggle member (63), the toggle member (63) is fixedly connected to the synchronous member (21), and the toggle member (63) is configured to move with the synchronous member (21) and to toggle the torsion member (62) to drive the pointer (61) to pivot; An opening mark (64) and a closing mark (65), wherein the opening mark (64) and the closing mark (65) are arranged outside the box (5); when the pulling member (10) is located in the opening position, the pointer (61) points to the opening mark (64); when the pulling member (10) is located in the closing position, the pointer (61) points to the closing mark (65).

7. The three-phase linkage quick switch according to claim 3, characterized in that a plurality of the repulsive force mechanisms (1) are arranged at intervals in a second direction (Y), and the second direction (Y) intersects with the first direction (X).

8. The three-phase linkage quick switch according to claim 3, characterized in that one end of the swing member (200) located between the two contact portions (101) is provided with a first ball head (2000) for the contact portion (101) to abut against.

9. The three-phase linkage quick switch according to claim 4, characterized in that one end of the second linkage member (40) located between the two buffer members (41) is provided with a second ball head (400) for the buffer member (41) to elastically abut against.

10. A circuit breaker, characterized in that, including the three-phase linkage quick switch according to any one of claims 1 to 9.

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