A two-in and two-out DC 1500V disconnector

Abstract

The present invention provides a two-in and two-out DC 1500V disconnect switch, comprising: two contact modules, arranged side by side with the operation module, and multiple modules are assembled by fasteners. The contact module includes a contact module body and a contact assembly arranged inside the contact module body; an operation module, provided with a manual operation mechanism and an electric operation mechanism for controlling the opening or closing of the contact module. In this way, modularization is achieved, the structure is simple, and the assembly is fast and convenient. Moreover, the operation module is provided with a manual operation mechanism and an electric operation mechanism for controlling the opening or closing of the contact module, that is, the opening or closing can be realized manually and electrically, which is beneficial to people's operation.

Description

Technical Field

[0001] The present invention relates to the technical field of disconnectors, and particularly to a two-in and two-out DC 1500V disconnector. Background Art

[0002] Disconnectors are used to block or allow current flow in the energized state, achieving reliable isolation between the part that needs to be de-energized and the energized part in the distribution device, and they are widely used in power systems such as photovoltaic and wind power.

[0003] The existing DC disconnectors have the following defects: 1) The structure is relatively complex, which is not conducive to rapid assembly and it is difficult to achieve high voltages (such as DC 1500V); 2) Arcs will be generated when the moving and static contacts are disconnected, and the arcs will damage components (such as contacts), thus seriously affecting the performance of the disconnector and shortening the service life; 3) The opening distance between the moving and static contacts is small, resulting in poor arc extinguishing effect. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defects of the existing disconnectors, such as complex structure, not being conducive to rapid assembly, and the arcs being prone to damage components such as contacts, so as to provide a modular two-in and two-out DC 1500V disconnector with a long service life.

[0005] To this end, the present invention provides a two-in and two-out DC 1500V disconnector, including a contact module and an operating module. The two contact modules and the operating module are arranged side by side, and multiple modules are assembled by fasteners. The contact module includes a contact module body and a contact assembly arranged in the contact module body; the operating module is provided with a manual operating mechanism and an electric operating mechanism for controlling the opening or closing of the contact module.

[0006] The contact assembly includes a moving contact and a static contact. The moving contact can be in contact connection or disconnected from the static contact; the static contact has a first connecting plate and a second connecting plate that are bent and connected and have opposite current directions. Among them, the opening and disconnecting position of the moving contact and the static contact is between the first connecting plate and the arc extinguishing chamber, and the second connecting plate is located on the side of the first connecting plate away from the arc extinguishing chamber.

[0007] The first connecting plate and the second connecting plate are bent into a U shape.

[0008] The static contact has a first static contact plate and a second static contact plate. Among them, when closing, the second static contact plate contacts and connects with the moving contact before the first static contact plate; when opening, the second static contact plate separates and disconnects from the moving contact after the first static contact plate.

[0009] The moving contact has a first moving contact plate and a second moving contact plate, wherein, when closing the switch, the second moving contact plate contacts and connects with the static contact before the first moving contact plate; when opening the switch, the second moving contact plate separates and disconnects from the static contact after the first moving contact plate.

[0010] The length of the second static contact plate is longer than that of the first static contact plate, the length of the second moving contact plate is longer than that of the first moving contact plate, and the second moving contact plate can be in contact with or disconnected from the second static contact plate, and the first moving contact plate can be in contact with or disconnected from the first static contact plate; wherein, when closing the circuit, the second moving contact plate is first in contact with and connected to the second static contact plate, and then the first moving contact plate is in contact with and connected to the first static contact plate; when opening the circuit, the second moving contact plate is first separated and disconnected from the second static contact plate, and then the first moving contact plate is separated and disconnected from the first static contact plate.

[0011] The first stationary contact plate is vertically arranged on one side of the first connecting plate, the second stationary contact plate is L-shaped, the horizontal plate portion of the L-shaped second stationary contact plate is fixedly connected to the second connecting plate, a gap is provided between the vertical plate portion and the first stationary contact plate, and the plane where the vertical plate portion is located is vertically arranged to the plane where the first stationary contact plate is located.

[0012] The vertical plate portion extends to the interior of the arc extinguishing chamber.

[0013] It also includes a magnetizing sheet fixed between the transverse plate portion and the second connecting plate.

[0014] A moving contact frame is rotatably mounted in the contact module body. The moving contact frame has two moving contacts arranged on both sides of its rotation center. There are two corresponding static contacts and arc extinguishing chambers. The rotation angle of the moving contact frame is 0-110°.

[0015] The cross section of the contact module body is square.

[0016] The manual operating mechanism includes an operating module body, an operating handle and a transmission mechanism arranged on the operating module body. The operating handle drives the contact mechanism to open or close the switch through the transmission mechanism. The transmission mechanism includes: a first main shaft, which is vertically arranged on the operating module body and can be driven to rotate by the operating handle; a second main shaft, which is horizontally arranged on the contact module body, and a plurality of moving contact racks are arranged on the second main shaft; a gear transmission assembly, which is arranged between the first main shaft and the second main shaft, and is suitable for converting the rotation of the first main shaft into a driving force for driving the second main shaft to rotate. The gear transmission assembly includes a toothed disc fixed on the first main shaft and capable of rotating in conjunction with the first main shaft, and a bevel gear fixed on the second main shaft and capable of rotating in conjunction with the second main shaft, and the bevel gear is meshingly connected with the toothed disc.

[0017] It also includes an energy storage jump component connected to the transmission mechanism, which has an extreme compression position, an energy storage state before moving to the extreme compression position, and an energy release state after moving to the extreme compression position to drive the transmission mechanism to move quickly.

[0018] The energy storage jump assembly includes a first mounting shaft, a second mounting shaft, a movable plate and a spring, wherein the first mounting shaft is fixedly arranged on the operating module body;

[0019] The second mounting shaft is installed on the operating module body and is connected to the operating handle. The second mounting shaft is driven by the operating handle and can move along an arc trajectory; the movable plate is provided with a long hole at one end for the first mounting shaft to pass through and allowing the movable plate to move laterally relative to the first mounting shaft, and a mounting groove or mounting hole at the other end for the second mounting shaft to pass through and rotate in conjunction with the second mounting shaft; a spring is sleeved on the movable plate, one end of which is against the first mounting shaft, and the other end is against the second mounting shaft or a stopper formed at the end of the movable plate. When the second mounting shaft moves to the closest distance to the first mounting shaft, the spring is in an extreme compression position.

[0020] The transmission mechanism also includes a turntable assembly arranged on the first main shaft, and the turntable assembly is provided with a second mounting shaft; before the energy storage sudden jump assembly moves to the extreme compression position, the turntable assembly and the operating handle maintain a linkage state; after the energy storage sudden jump assembly moves to the extreme compression position, the turntable assembly and the operating handle maintain a separation state.

[0021] The turntable assembly includes a first turntable and a second turntable, the first turntable is fixed on the first main shaft and is provided with at least one movable groove or movable hole; at least one second turntable is rotatably mounted on the first main shaft and is provided with a second mounting shaft which can extend into the movable groove and move relative to the first main shaft; before the energy storage jump assembly moves to the extreme compression position, a side wall of the movable groove of the first turntable abuts against the second mounting shaft and drives the second turntable to rotate; after the energy storage jump assembly moves to the extreme compression position, the energy storage jump assembly drives the second mounting shaft to move from one side of the movable groove to the other side.

[0022] It also includes a limiting structure for limiting the rotation position of the first turntable, the limiting structure includes a limiting groove arranged on the first turntable, and a limiting block arranged on the turntable bracket of the operating module body and can extend into the limiting groove.

[0023] The first rotating disk has two movable grooves which are arranged on both sides of the rotating center and are symmetrically arranged. The second rotating disk is provided with two second installation shafts corresponding to the movable grooves.

[0024] The turntable bracket includes a top plate and a bottom plate arranged up and down, and the top plate and the bottom plate are both provided with arc holes for the second mounting shaft to extend and move. Two second turntables arranged up and down are arranged between the top plate and the bottom plate, and the two second turntables are fixedly connected by two second mounting shafts and two third mounting shafts distributed thereon at intervals along the circumferential direction.

[0025] The first main shaft comprises a square shaft section and a round shaft section. A square hole matching the square shaft section is formed in the middle of the first rotating disk, and a round hole matching the round shaft section is formed in the middle of the second rotating disk.

[0026] The electric operating mechanism has a motor and a power output shaft arranged at one end of the motor. A clutch mechanism is arranged between the manual operating mechanism and the electric operating mechanism. The clutch mechanism includes: a first clutch gear, which is fixed on the first main shaft and rotates in conjunction with the first main shaft, and the first clutch gear has incomplete teeth; a second clutch gear, which is fixed on the power output shaft and rotates in conjunction with the first main shaft, and the second clutch gear has incomplete teeth, and has a first state in which it is meshed and connected with the first clutch gear, and a second state in which it is separated from the first clutch gear.

[0027] It also includes an opening and closing button for controlling the operation of the motor.

[0028] The technical solution of the present invention has the following advantages:

[0029] 1. The two-input and two-output DC 1500V isolating switch provided by the present invention comprises an operating module and two contact modules arranged side by side. The multiple modules are assembled by fasteners, thereby realizing modularization, simple structure, and quick and convenient assembly. The operating module is provided with a manual operating mechanism and an electric operating mechanism for controlling the opening or closing of the contact module, that is, the opening or closing can be achieved by both manual and electric means, which is convenient for people to operate.

[0030] 2. In the two-input and two-output DC 1500V isolating switch provided by the present invention, the opening and disconnecting position of the moving contact and the static contact is between the first connecting plate and the arc extinguishing chamber, the second connecting plate is located on the side of the first connecting plate away from the arc extinguishing chamber, and the current directions of the first connecting plate and the second connecting plate are opposite. When the circuit breaker is disconnected, an arc will be generated between the moving and static contacts. The magnetic fields generated by the first connecting plate and the second connecting plate below the arc are in the same direction, and the magnetic fields generated above the arc are in opposite directions, that is, the synthetic magnetic fluxes on the upper and lower sides of the arc are not equal, and the lower side is larger than the upper side. This will generate a strong electromagnetic force to blow the arc toward the arc extinguishing chamber, which is conducive to quickly extinguishing the arc and has a good arc extinguishing effect.

[0031] 3. The two-input and two-output DC 1500V isolating switch provided by the present invention has a static contact with a first static contact plate and a second static contact plate, wherein when closing the switch, the second static contact plate contacts and connects with the moving contact before the first static contact plate; when opening the switch, the second static contact plate is separated and disconnected from the moving contact after the first static contact plate, so that the arc is only generated between the second static contact plate and the moving contact. Since the first static contact plate is arranged far away from the arc, it is used as the main static contact and is not easily eroded by the arc, thereby extending its service life.

[0032] 4. The two-in and two-out DC 1500V disconnect switch provided by the present invention has a moving contact with a first moving contact plate and a second moving contact plate. Among them, when closing, the second moving contact plate contacts and communicates with the static contact prior to the first moving contact plate; when opening, the second moving contact plate separates and disconnects from the static contact after the first moving contact plate. In this way, the arc is only generated between the second moving contact plate and the static contact. Since the first moving contact plate is arranged away from the arc, it is used as the main contact and is not easily eroded by the arc, thus extending the service life.

[0033] 5. The two-in and two-out DC 1500V disconnect switch provided by the present invention has the length of the second static contact plate longer than that of the first static contact plate, and the length of the second moving contact plate longer than that of the first moving contact plate. Moreover, the second moving contact plate can contact and communicate with or disconnect from the second static contact plate, and the first moving contact plate can contact and communicate with or disconnect from the first static contact plate. In this way, the arc is only generated between the second moving contact plate and the second static contact plate. Since the first moving contact plate and the first static contact plate are arranged away from the arc, they are used as the main contact and the main static contact respectively and are not easily eroded by the arc, thus extending the service life.

[0034] 6. The two-in and two-out DC 1500V disconnect switch provided by the present invention has the rotation angle of the moving contact holder being 0 - 110°. In this way, the opening distance between the moving and static contacts is relatively large, improving the arc extinguishing ability. Moreover, the cross-section of the contact module body is square, and the moving contact holder rotates around the center of the contact module body, effectively utilizing the space.

[0035] 7. The two-in and two-out DC 1500V disconnect switch provided by the present invention has a gear transmission assembly including a toothed disc and a bevel gear meshed with the toothed disc. When the operating handle rotates 90°, the first main shaft also rotates 90°. The bevel gear can make the second main shaft rotate by an angle greater than 90°, that is, the contact mechanism can rotate by an angle greater than 90°, thus realizing a relatively large opening distance between the moving and static contacts. In this way, the arc extinguishing effect is better, and the bevel gear and the toothed disc have the advantages of simple structure and low production cost.

[0036] 8. The energy storage sudden jump assembly has an extreme compression position, an energy storage state before moving to the extreme compression position, and an energy release state after moving to the extreme compression position to drive the transmission mechanism to act quickly. In this way, rapid opening and closing can be realized, thereby improving the on-off ability.

[0037] 9. The two-in and two-out DC 1500V disconnect switch provided by the present invention, the energy storage sudden jump assembly includes a first mounting shaft, a second mounting shaft, a movable plate and a spring. During assembly, the spring is sleeved on the movable plate, and the long hole at one end thereof is aligned and inserted into the first mounting shaft. One end of the spring abuts against the first mounting shaft. By adjusting the movable plate to move towards the first mounting shaft, the stopper at the other end of the movable plate will squeeze the spring. When the mounting groove of the movable plate is snapped into the second mounting shaft and then released, the spring restores its deformation. The above structure is quick and convenient to assemble, improving the assembly efficiency.

[0038] 10. The two-in and two-out DC 1500V disconnect switch provided by the present invention, before the energy storage sudden jump assembly moves to the extreme compression position, the turntable assembly and the operating handle remain in a linkage state; after the energy storage sudden jump assembly moves to the extreme compression position, the turntable assembly and the operating handle remain in a separated state. This ensures that when the energy storage sudden jump assembly moves quickly, the position of the operating handle remains unchanged, thus preventing accidental injury to the operator's hand and improving the safety performance.

[0039] 11. The two-in and two-out DC 1500V disconnect switch provided by the present invention, before the energy storage sudden jump assembly moves to the extreme compression position, one side wall of the first turntable movable groove abuts against the second mounting shaft and drives the second turntable to rotate; after the energy storage sudden jump assembly moves to the extreme compression position, the energy storage sudden jump assembly drives the second mounting shaft to move from one side of the movable groove to the other side. The inventor realizes the linkage and separation of the first turntable and the second turntable by cleverly setting the movable groove and the second mounting shaft, which has the advantages of simple structure and low production cost.

[0040] 12. The two-in and two-out DC 1500V disconnect switch provided by the present invention, by setting a first clutch gear and a second clutch gear, both of which have incomplete teeth, the second clutch gear has a first state of meshing connection with the first clutch gear and a second state of separation from it. This can separate the electric operating mechanism from the manual operating mechanism during manual operation, so that the manual operation is relatively labor-saving and convenient to use, and the first clutch gear and the second clutch gear have the advantages of simple structure and low production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0042] Figure 1 is a perspective view of the disconnect switch of the present invention;

[0043] Figure 2 is Figure 1 explosion structure schematic diagram;

[0044] Figure 3 is the structure schematic diagram of the contact module;

[0045] Figure 4 is the exploded schematic diagram of the moving contact holder, moving contact and static contact;

[0046] Figure 5 is the assembly schematic diagram of the moving contact holder and moving contact;

[0047] Figure 6 is Figure 5 exploded schematic diagram;

[0048] Figure 7 is the three-dimensional view of the static contact;

[0049] Figure 8 is the explosion structure schematic diagram of the static contact;

[0050] Figure 9 is the three-dimensional view of the operation module;

[0051] Figure 10 is the three-dimensional view of the manual operating mechanism;

[0052] Figure 11 is the three-dimensional view of the transmission mechanism;

[0053] Figure 12 is the three-dimensional view of the turntable support;

[0054] Figure 13 is Figure 11 three-dimensional view after removing the top plate of the turntable support in ;

[0055] Figure 14 is the explosion structure schematic diagram of the first main shaft and the turntable assembly;

[0056] Figure 15 is Figure 13 another three-dimensional view rotated by a certain angle;

[0057] Figure 16 is the assembly schematic diagram of the energy storage sudden jump component;

[0058] Figure 17 is the explosion structure schematic diagram of the energy storage sudden jump component.

[0059] Description of the reference numerals in the drawings: 1. Contact module; 10. Contact module body; 11. Moving contact; 113. First moving contact plate; 114. Second moving contact plate; 12. Stationary contact; 121. First connecting plate; 122. Second connecting plate; 123. First stationary contact plate; 124. Second stationary contact plate; 1241. Horizontal plate portion; 1242. Vertical plate portion; 13. Arc extinguishing chamber; 14. Magnetizing sheet; 15. Moving contact holder; 16. Second main shaft; 17. Bevel gear; 2. Operating module; 20. Operating module body; 21. Operating handle; 22. First main shaft; 221. Square shaft section; 222. Round shaft section; 23. First clutch gear; 24. Tooth disc; 3. Motor; 31. Power output shaft; 32. Second clutch gear; 4. Energy storage and snap-action assembly; 41. First mounting shaft; 42. Movable plate; 43. Long slot; 44. Mounting groove; 45. Spring; 46. Stopper; 5. Turntable assembly; 50. Turntable bracket; 501. Top plate; 502. Bottom plate; 503. Arc-shaped hole; 51. First turntable; 52. Second turntable; 53. Movable slot; 54. Second mounting shaft; 55. Limiting slot; 56. Limiting block; 57. Third mounting shaft; 6. Indicator assembly; 61. Make-and-break button. Detailed implementation manners

[0060] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Apparently, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0061] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention 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 should not be construed as a limitation to the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0062] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "mounted", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0063] In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0064] Embodiment

[0065] This embodiment provides a two-in and two-out DC 1500V disconnector, as Figure 1 and 2 shown, which includes two contact modules 1 and an operating module 2.

[0066] The two contact modules 1 are arranged side by side with the operating module 2, and multiple modules are assembled by fasteners. The contact module 1 includes a contact module body 10 and a contact assembly arranged in the contact module body 10. The contact assembly includes a moving contact 11 and a static contact 12. In this embodiment, the fasteners are pins or rivets.

[0067] The contact module body 10 has a moving contact holder 15 that rotates around its center. The moving contact holder 15 has two of the moving contacts 11 respectively arranged on both sides of its rotation center. There are two corresponding static contacts 12 and arc extinguishing chambers 13. Among them, the rotation angle of the moving contact holder 15 is 0-110°. In this way, the opening distance between the moving and static contacts is relatively large, improving the breaking capacity. In this embodiment, the cross-section of the contact module body 10 is square, thus effectively utilizing the space.

[0068] The static contact 12, as Figure 4 , 7 and shown in 8, has a first connecting plate 121 and a second connecting plate 122 that are bent and connected and have opposite current directions. Among them, the opening and disconnecting position of the moving contact 11 and the static contact 12 is between the first connecting plate 121 and the arc extinguishing chamber 13, and the second connecting plate 122 is located on the side of the first connecting plate 121 away from the arc extinguishing chamber 13. In this embodiment, the first connecting plate 121 and the second connecting plate 122 are bent in a U shape.

[0069] As Figure 7As shown, the static contact 12 further has a first static contact plate 123 and a second static contact plate 124. The length of the second static contact plate 124 is longer than that of the first static contact plate 123. The first static contact plate 123 is vertically arranged on one side of the first connecting plate 121. The second static contact plate 124 is L-shaped. The horizontal plate portion 1241 of the L-shaped second static contact plate 124 is fixedly connected to the second connecting plate 122. There is a gap between the vertical plate portion 1242 and the first static contact plate 123. And the plane where the vertical plate portion 1242 is located is perpendicular to the plane where the first static contact plate 123 is located. The vertical plate portion 1242 extends into the arc extinguishing chamber 13. A magnetic flux intensifying sheet 14 is arranged between the horizontal plate portion 1241 and the second connecting plate 122, which is beneficial to blowing the arc towards the arc extinguishing chamber 13.

[0070] The moving contact 11, as Figures 4 - 6 shown, has two first moving contact plates 113 symmetrically arranged left and right and two second moving contact plates 114 symmetrically arranged left and right. The two first moving contact plates 113 are arranged between the two second moving contact plates 114. And the length of the second moving contact plate 114 is longer than that of the first moving contact plate 113. Among them, when closing, as Figure 4 shown, the moving contact holder 15 rotates clockwise. The second moving contact plate 114 first contacts and communicates with the second static contact plate 124, and then the first moving contact plate 113 contacts and communicates with the first static contact plate 123. When opening, the second moving contact plate 114 first separates and disconnects from the second static contact plate 124, and then the first moving contact plate 113 separates and disconnects from the first static contact plate 123. In this embodiment, contacts are only arranged on the first moving contact plate 113 and the first static contact plate 123. The above structural arrangement makes the arc only generated between the second moving contact plate 114 and the second static contact plate 124. Since the first moving contact plate 113 and the first static contact plate 123 are arranged away from the arc, the first moving contact plate 113 and the first static contact plate 123 are used as the main moving contact and the main static contact respectively. The contacts are not easily eroded by the arc, and the service life is prolonged.

[0071] As a changeable embodiment, the static contact 12 has a first static contact plate 123 and a second static contact plate 124. Among them, when closing, the second static contact plate 124 first contacts and communicates with the moving contact 11 before the first static contact plate 123. When opening, the second static contact plate 124 separates and disconnects from the moving contact 11 after the first static contact plate 123.

[0072] As a transformable embodiment, the moving contact 11 has a first moving contact plate 113 and a second moving contact plate 114. When closing, the second moving contact plate 114 contacts and communicates with the static contact 12 prior to the first moving contact plate 113. When opening, the second moving contact plate 114 separates from the static contact 12 after the first moving contact plate 113.

[0073] The operating module 2 includes an operating module body 20, a manual operating mechanism, an electric operating mechanism, and an indicating component 6.

[0074] The operating module body 20 is provided with an operating handle 21 and a transmission mechanism thereon. The operating handle 21 drives the contact mechanism to open or close through the transmission mechanism.

[0075] The electric operating mechanism, as Figure 9 shown, has a motor 3, a power output shaft 31 provided at one end of the motor 3, and a second clutch gear 32 linked to the power output shaft 31. The second clutch gear 32 has incomplete teeth. The second clutch gear 32 has a first state of meshing connection with the first clutch gear 23 and a second state of separation therefrom.

[0076] The manual operating mechanism, as Figure 10 shown, includes an operating handle 21, a transmission mechanism, and an energy storage and jump component 4.

[0077] The transmission mechanism includes a first main shaft 22, a second main shaft 16, a gear transmission component, and a turntable component 5.

[0078] The first main shaft 22 is vertically provided on the operating module body 20 and can be driven to rotate by the operating handle 21. As Figure 14 shown, the first main shaft 22 includes a square shaft section 221 and a circular shaft section 222. A square hole adapted to the square shaft section 221 is formed in the middle of the first turntable 51, and a circular hole adapted to the circular shaft section 222 is formed in the middle of the second turntable 52. The second main shaft 16 is horizontally provided on the contact module body 10, and two moving contact holders 15 are provided on the second main shaft 16. A first clutch gear 23 linked to it is fixedly provided on the first main shaft 22, and the first clutch gear 23 has incomplete teeth.

[0079] The gear transmission component is provided between the first main shaft 22 and the second main shaft 16 and is adapted to convert the rotation of the first main shaft 22 into a driving force for driving the second main shaft 16 to rotate. As Figure 10As shown, the gear transmission assembly includes: a toothed disc 24, which is fixed on the first main shaft 22 and can rotate in conjunction with it; a bevel gear 17, which is fixed on the second main shaft 16 and can rotate in conjunction with it, and the bevel gear 17 is meshed and connected with the toothed disc 24. When the operating handle 21 is rotated 90°, the bevel gear 17 can make the contact mechanism rotate an angle greater than 90°, thereby achieving a large stroke of the moving and static contacts and improving the arc extinguishing ability.

[0080] The turntable assembly 5 is provided with the second mounting shaft 54, and can be driven to rotate by the first main shaft 22. Figures 11 - 14 As shown, the turntable assembly 5 includes a first turntable 51 and a second turntable 52. The first turntable 51 is fixed on the first main shaft 22, and has two movable grooves 53 or movable holes symmetrically arranged on both sides of its rotation center, and a limit groove 55 arranged between the two movable grooves 53. The two second turntables 52 are rotatably mounted on the first main shaft 22, and are provided with a second mounting shaft 54 ​​that can extend into the movable groove 53 and move relative to it; before the energy storage jump assembly 4 moves to the extreme compression position, a side wall of the movable groove 53 of the first turntable 51 abuts against the second mounting shaft 54 ​​and drives the second turntable 52 to rotate; after the energy storage jump assembly 4 moves to the extreme compression position, the energy storage jump assembly 4 drives the second mounting shaft 54 ​​to move from one side of the movable groove 53 to the other side. The inventor realizes the linkage and separation of the first turntable 51 and the second turntable 52 by cleverly setting the movable groove 53 and the second mounting shaft 54, which has the advantages of simple structure and low production cost. like Figure 12 As shown, the operating module body 20 is provided with a turntable bracket 50, and the turntable bracket 50 includes a top plate 501 and a bottom plate 502 arranged up and down, and the top plate 501 and the bottom plate 502 are both provided with an arc hole 503 for the second mounting axis 54 to extend and for its movement, and two second turntables 52 arranged up and down are provided between the top plate 501 and the bottom plate 502, and the two second turntables 52 are fixedly connected by two second mounting axes 54 and two third mounting axes 57 distributed thereon at intervals along the circumferential direction, and the top plate 501 is provided with a limit block 56 cooperating with the limit groove 55.

[0081] The energy storage and sudden jump component 4 is arranged on the transmission mechanism. It has an extreme compression position, an energy storage state before moving to the extreme compression position, and an energy release state after moving to the extreme compression position to drive the transmission mechanism to act quickly. Before the energy storage and sudden jump component 4 moves to the extreme compression position, the turntable component 5 and the operating handle 21 remain in a linkage state; after the energy storage and sudden jump component 4 moves to the extreme compression position, the turntable component 5 and the operating handle 21 remain in a separated state, so as to ensure that the position of the operating handle 21 remains unchanged when the energy storage and sudden jump component 4 acts quickly, thus preventing accidental injury to the operator's hand and improving the safety performance.

[0082] The energy storage and sudden jump component 4, as Figures 15 - 17 shown, includes: a first mounting shaft 41 fixedly arranged on the operation module body 20; a second mounting shaft 54 mounted on the operation module body 20 and connected to the operating handle 21. The second mounting shaft 54 is driven by the operating handle 21 and can move along an arc trajectory; a movable plate 42, one end of which is provided with a long hole 43 for the first mounting shaft 41 to pass through and allowing the movable plate 42 to move laterally relative to the first mounting shaft 41, and the other end is provided with a mounting groove 44 or a mounting hole for the second mounting shaft 54 to pass through and be linked to rotate therewith; a spring 45 sleeved on the movable plate 42, one end of which abuts against the first mounting shaft 41, and the other end abuts against the second mounting shaft 54 or a stop block 46 formed at the end of the movable plate 42. When the second mounting shaft 54 moves to the position closest to the first mounting shaft 41, the spring 45 is in the extreme compression position.

[0083] It also includes a closing and opening button 61 for controlling the operation of the motor 3.

[0084] Obviously, the above embodiments are only examples for clear illustration and not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or variations can be made based on the above description. It is not necessary and impossible to list all the implementation manners here. And the obvious changes or variations derived therefrom are still within the protection scope of the present invention.

Claims

1. A two-input and two-output DC 1500V disconnect switch, characterized in that Including: Two contact modules (1), arranged side by side with the operation module (2), and multiple modules are assembled by fasteners. The contact module (1) includes a contact module body (10) and a contact assembly provided inside the contact module body (10); An operation module (2) provided with a manual operation mechanism and an electric operation mechanism for controlling the opening or closing of the contact module (1); The contact assembly includes: A moving contact (11) that can be in contact connection or disconnected from a static contact (12); The static contact (12) has a first connecting plate (121) and a second connecting plate (122) that are bent and connected with opposite current directions. Wherein, the opening and disconnecting position of the moving contact (11) and the static contact (12) is between the first connecting plate (121) and the arc extinguishing chamber (13); The static contact (12) has a second static contact plate (124), and the second static contact plate (124) is L-shaped. The vertical plate portion (1242) of the L-shaped second static contact plate (124) extends into the arc extinguishing chamber (13); The manual operation mechanism includes an operation module body (20), an operation handle (21) provided on the operation module body (20), and a transmission mechanism; It also includes an energy storage and jump component (4) connected to the transmission mechanism, which has an extreme compression position, an energy storage state before moving to the extreme compression position, and an energy release state after moving to the extreme compression position to drive the transmission mechanism to act quickly.

2. The two-in and two-out DC 1500V disconnect switch according to claim 1, wherein The second connecting plate (122) is located on the side of the first connecting plate (121) away from the arc extinguishing chamber (13).

3. The two-in and two-out DC 1500V disconnector according to claim 2, characterized in that, The first connecting plate (121) and the second connecting plate (122) are bent into a U shape.

4. The two-in and two-out DC 1500V disconnecting switch according to claim 3, characterized in that, The static contact (12) has a first static contact plate (123). During closing, the second static contact plate (124) contacts and connects with the moving contact (11) before the first static contact plate (123); during opening, the second static contact plate (124) separates and disconnects from the moving contact (11) after the first static contact plate (123).

5. The two-in and two-out DC 1500V disconnector according to claim 4, wherein, The moving contact (11) has a first moving contact plate (113) and a second moving contact plate (114). Wherein, during closing, the second moving contact plate (114) contacts and connects with the static contact (12) before the first moving contact plate (113); during opening, the second moving contact plate (114) separates and disconnects from the static contact (12) after the first moving contact plate (113).

6. The two-in and two-out DC 1500V disconnector according to claim 5, wherein The length of the second static contact plate (124) is longer than the length of the first static contact plate (123), the length of the second moving contact plate (114) is longer than the length of the first moving contact plate (113), and the second moving contact plate (114) can be in contact connection or disconnected from the second static contact plate (124), and the first moving contact plate (113) can be in contact connection or disconnected from the first static contact plate (123); Wherein, when the switch is closed, the second moving contact plate (114) first contacts and communicates with the second stationary contact plate (124), and then the first moving contact plate (113) contacts and communicates with the first stationary contact plate (123); When opening the switch, the second moving contact plate (114) is first separated and disconnected from the second stationary contact plate (124), and the first moving contact plate (113) is then separated and disconnected from the first stationary contact plate (123).

7. The two-in and two-out DC 1500V disconnector according to claim 6, characterized in that, The first stationary contact plate (123) is vertically arranged on one side of the first connecting plate (121); the horizontal plate portion (1241) of the L-shaped second stationary contact plate (124) is fixedly connected to the second connecting plate (122); a gap is provided between the vertical plate portion (1242) and the first stationary contact plate (123); and the plane where the vertical plate portion (1242) is located is vertically arranged to the plane where the first stationary contact plate (123) is located.

8. The two-in and two-out DC 1500V disconnect switch according to claim 7, wherein, It also includes a magnetizing sheet (14) fixed between the transverse plate portion (1241) and the second connecting plate (122).

9. The two-in and two-out DC 1500V disconnector according to claim 2, characterized in that, A moving contact frame (15) is rotatably mounted in the contact module body (10), the moving contact frame (15) having two moving contacts (11) arranged on both sides of its rotation center, and two corresponding static contacts (12) and arc extinguishing chambers (13), wherein the rotation angle of the moving contact frame (15) is 0-110°.

10. The two-in and two-out DC 1500V disconnect switch according to claim 1, characterized in that, The cross section of the contact module body (10) is square.

11. The two-in and two-out DC 1500V disconnector according to any one of claims 1-10, characterized in that, The operating handle (21) drives the contact mechanism to open or close the switch through the transmission mechanism, and the transmission mechanism comprises: A first main shaft (22) is vertically arranged on the operating module body (20) and can be driven to rotate by the operating handle (21); A second main shaft (16) is horizontally arranged on the contact module body (10), wherein a plurality of movable contact frames (15) are arranged on the second main shaft (16); A gear transmission assembly is provided between the first main shaft (22) and the second main shaft (16), and is suitable for converting the rotation of the first main shaft (22) into a driving force for driving the second main shaft (16) to rotate. The gear transmission assembly comprises a toothed disc (24) fixed on the first main shaft (22) and capable of rotating in conjunction with the first main shaft (22), and a bevel gear (17) fixed on the second main shaft (16) and capable of rotating in conjunction with the second main shaft (16), wherein the bevel gear (17) is meshingly connected to the toothed disc (24).

12. The two-in and two-out DC 1500V disconnector according to claim 11, wherein The energy storage jump component (4) comprises: A first mounting shaft (41) fixedly mounted on the operating module body (20); A second mounting shaft (54) is mounted on the operating module body (20) and connected to the operating handle (21); the second mounting shaft (54) is driven by the operating handle (21) and can move along an arc trajectory; The movable plate (42) has a long hole (43) at one end for the first mounting shaft (41) to pass through and allowing the movable plate (42) to move laterally relative to the first mounting shaft (41), and an installation groove (44) or an installation hole at the other end for the second mounting shaft (54) to pass through and rotate in linkage therewith; The spring (45) is sleeved on the movable plate (42), one end thereof abuts against the first mounting shaft (41), and the other end abuts against the second mounting shaft (54) or a stop block (46) formed at the end of the movable plate (42). When the second mounting shaft (54) moves to the position closest to the first mounting shaft (41), the spring (45) is in the limit compression position.

13. The two-in and two-out DC 1500V disconnector according to claim 12, characterized in that, The transmission mechanism further includes a turntable assembly (5) provided on the first main shaft (22), and the second mounting shaft (54) is provided on the turntable assembly (5); Before the energy storage and sudden jump assembly (4) moves to the limit compression position, the turntable assembly (5) and the operating handle (21) are in a linkage state; after the energy storage and sudden jump assembly (4) moves to the limit compression position, the turntable assembly (5) and the operating handle (21) are in a separated state.

14. The two-in and two-out DC 1500V disconnector according to claim 13, characterized in that, The turntable assembly (5) includes: A first turntable (51) fixed to the first main shaft (22), having at least one movable groove (53) or movable hole thereon; At least one second turntable (52) rotatably mounted on the first main shaft (22), having the second mounting shaft (54) that can extend into the movable groove (53) and move relative thereto; Before the energy storage and sudden jump assembly (4) moves to the limit compression position, one side wall of the movable groove (53) of the first turntable (51) abuts against the second mounting shaft (54) and drives the second turntable (52) to rotate; After the energy storage and sudden jump assembly (4) moves to the limit compression position, the energy storage and sudden jump assembly (4) drives the second mounting shaft (54) to move from one side of the movable groove (53) to the other side.

15. The two-in and two-out DC 1500V disconnector according to claim 14, characterized in that, It further includes a limiting structure for limiting the rotation position of the first turntable (51), and the limiting structure includes a limiting groove (55) provided on the first turntable (51) and a limiting block (56) provided on the turntable bracket (50) of the operation module body (20) and capable of extending into the limiting groove (55).

16. The two-in and two-out DC 1500V disconnector according to claim 15, characterized in that, The first turntable (51) has two movable grooves (53) symmetrically arranged on both sides of its rotation center, and two second mounting shafts (54) corresponding to the movable grooves (53) are provided on the second turntable (52).

17. The two-in and two-out DC 1500V disconnector according to claim 16, wherein The turntable bracket (50) comprises a top plate (501) and a bottom plate (502) which are arranged one above the other. The top plate (501) and the bottom plate (502) are both provided with an arc-shaped hole (503) for the second mounting shaft (54) to extend out and to allow the second mounting shaft (54) to move. Two second turntables (52) which are arranged one above the other are provided between the top plate (501) and the bottom plate (502). The two second turntables (52) are fixedly connected via two second mounting shafts (54) and two third mounting shafts (57) which are spaced apart along the circumferential direction.

18. The two-in and two-out DC 1500V disconnector according to claim 14, wherein The first main shaft (22) comprises a square shaft section (221) and a round shaft section (222); a square hole matching the square shaft section (221) is formed in the middle of the first rotating disk (51); and a round hole matching the round shaft section (222) is formed in the middle of the second rotating disk (52).

19. The two-in and two-out DC 1500V disconnector according to claim 11, characterized in that, The electric operating mechanism comprises a motor (3) and a power output shaft (31) arranged at one end of the motor (3); a clutch mechanism is arranged between the manual operating mechanism and the electric operating mechanism, and the clutch mechanism comprises: A first clutch gear (23) is fixed on the first main shaft (22) and rotates in conjunction with the first main shaft, and the first clutch gear (23) has incomplete teeth; The second clutch gear (32) is fixed on the power output shaft (31) and rotates in conjunction with the power output shaft. The second clutch gear (32) has incomplete teeth and has a first state in which it is meshed with the first clutch gear (23) and a second state in which it is separated from the first clutch gear (23).

20. The two-in and two-out DC 1500V disconnector according to claim 19, characterized in that, It also includes an opening and closing button (61) for controlling the operation of the motor (3) to achieve electric opening and closing.

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