A solid cabinet with copper bar and power supply integrated

Abstract

The application relates to the technical field of solid cabinet, and discloses a copper bar and cabinet integrated solid cabinet which comprises a cabinet body, a supporting plate arranged in the cabinet body, and a circuit breaker assembly fixedly arranged on the supporting plate. The circuit breaker assembly comprises a movable contact assembly, the movable contact assembly is rotationally arranged in the circuit breaker assembly, and a transmission assembly is rotationally arranged on one side of the movable contact assembly. The movable contact assembly comprises an operating rod, a plurality of movable contact rods are fixedly arranged on the operating rod, a through groove is arranged on the movable contact rod, a sliding shaft one and a sliding shaft two which are arranged in parallel are slidably arranged in the through groove, and the sliding shaft one and the sliding shaft two are connected through a side plate. The copper bar and cabinet integrated solid cabinet is characterized in that the through groove is arranged on the movable contact rod, the sliding shaft two is slidably arranged in the groove, the structure of the sliding shaft two is buckled with the structure of a static contact on the movable contact head, the movable contact head connection is locked, the loosening condition is avoided, and the service life of the movable contact rod and the movable contact head can be prolonged in actual conditions.

Description

Technical Field

[0001] This invention relates to the field of solid-state storage technology, specifically a copper-lined integrated solid-state storage unit. Background Technology

[0002] Existing solid-state switchgear solutions typically consist of a core assembly that integrates poles, a frame, and a mechanism, which is then fitted with sheet metal to form a complete switch. The core frame is sealed and, when combined with the poles, achieves the corresponding protection level. It is then further combined with sheet metal to achieve the corresponding compartment protection level.

[0003] In the prior art, such as the application with application number CN201921293367.1, the subject of which is: housing for solid ring main unit circuit breaker and disconnector, including housing and bottom cover mounted on the bottom of housing; housing includes a frame formed by a left side plate, a rear side plate, a right side plate and a front side plate and an upper top plate provided on the top surface of the frame; the upper top plate includes a top plate body and a plurality of protruding cylindrical cavities evenly distributed on the top surface of the top plate body, each of which is provided with a first cable connector on the top surface of the cylindrical cavity.

[0004] However, in the existing solid ring main unit circuit breakers, when the internal moving contact is rotated and connected to the stationary contact to conduct current, the connection between the moving contact and the stationary contact mainly relies on the support of the transmission mechanism and the friction between the contacts. Due to wear and tear during long-term use, the connection between the moving contact and the stationary contact is prone to loosening, resulting in abnormal power outages and other problems. Therefore, a copper busbar integrated solid ring main unit is needed. Summary of the Invention

[0005] The purpose of this invention is to provide an integrated copper busbar solid cabinet to solve the problems in the prior art.

[0006] The objective of this invention can be achieved through the following technical solutions:

[0007] A copper busbar integrated solid-state switchgear includes a cabinet body, a support plate disposed inside the cabinet body, and a circuit breaker assembly fixedly mounted on the support plate. The circuit breaker assembly includes:

[0008] The moving contact assembly is rotatably disposed within the circuit breaker assembly, and a transmission assembly is rotatably disposed on one side of the moving contact assembly.

[0009] The movable contact assembly includes an operating lever, on which several sets of movable contact rods are fixedly mounted. Each movable contact rod has a through groove, and two parallel sliding shafts, namely sliding shaft one and sliding shaft two, are slidably mounted within the through groove. Sliding shaft one and sliding shaft two are connected by a side plate.

[0010] Furthermore, a contact plate is fixedly provided inside the circuit breaker assembly, and several stationary contacts are fixedly provided on the contact plate. A bushing is fixedly provided on the circuit breaker assembly, and a push rod is slidably provided inside the bushing. A locking plate is fixedly provided at one end of the push rod, and a pull rope is connected to the other end. A protrusion is fixedly provided on the locking plate.

[0011] The locking plate and the sleeve are connected by a spring. A limiting rod is fixed on the sleeve, and a pawl is fixed below the limiting rod to fix the protrusion.

[0012] Furthermore, the control lever is provided with a locking groove for connecting and locking with the locking plate.

[0013] A movable contact head is fixedly provided at the front end of the movable contact rod, and a limiting plate is fixedly provided between the two movable contact rods. A second spring is fixedly provided on the limiting plate to achieve connection with the sliding shaft.

[0014] Furthermore, the circuit breaker assembly also includes a wiring assembly, which is fixedly mounted on the circuit breaker assembly.

[0015] The wiring assembly includes an insulating porcelain insulator, which is fixed to the top of the circuit breaker assembly. An insulating shell is fixed to the top of the insulating porcelain insulator, and a removable conductive copper terminal is provided inside the insulating shell.

[0016] Furthermore, a limiting groove is provided on the front side of the conductive copper end, a countersunk hole is provided in the limiting groove, an insulating screw sleeve is fixed in the countersunk hole, and one end of the conductive copper end is provided with a bevel.

[0017] Furthermore, a conductive sheet is fixedly installed inside the insulating porcelain bottle, and an insert is fixedly installed on the conductive sheet. An inclined block is provided on one side of the insert, and the inclined block is in contact with the inclined side.

[0018] The insert is equipped with an insulating bolt, which passes through the insert and connects to the insulating screw sleeve.

[0019] Furthermore, a locking plate is provided on one side of the conductive sheet, and a locking screw is fixed on the locking plate. The locking screw passes through the locking plate and connects to the inner wall of the insulating porcelain bottle.

[0020] Furthermore, the transmission assembly includes:

[0021] The transmission rod has several insulating pull rods rotatably mounted on it. A connecting shaft is fixed on one side of the moving contact rod, and an insulating pull rod is rotatably mounted on the connecting shaft.

[0022] The support shaft is fixed inside the circuit breaker assembly. Several Z-shaped transmission arms are rotatably mounted on the support shaft. One end of each Z-shaped transmission arm is rotatably connected to an insulating tie rod 1, and the other end is rotatably connected to an insulating tie rod 2.

[0023] Furthermore, the circuit breaker assembly also includes a transition component, which is fixedly installed between the wiring assembly and the moving contact assembly.

[0024] Furthermore, the transition components include:

[0025] A horizontal plate is fixedly provided with an array of through slots, and conductive contacts are fixedly provided on the through slots. After the conductive sheet is inserted into the through slot, it is connected to the conductive contact.

[0026] The frame is fixed to the front end of the conductive contact. An auxiliary corner block is fixed inside the frame. One side of the auxiliary corner block has an inner bevel, and the other side has an outer bevel. The inner bevel and the outer bevel are connected to form a protrusion. The inner bevel and the outer bevel are slidably connected to the sliding shaft.

[0027] The beneficial effects of this invention are:

[0028] 1. The copper busbar integrated solid cabinet of the present invention has a through groove structure designed on the moving contact rod, and a sliding shaft two is slidably set in the groove. The sliding shaft two is fastened to the structure on the stationary contact to lock the connection of the moving contact and prevent loosening. In practice, it can extend the service life of the moving contact rod and the moving contact.

[0029] 2. The present invention is a copper busbar integrated solid cabinet, and the second sliding shaft can provide a disconnecting thrust for the moving contact when the moving contact is separated, assisting the moving contact and the stationary contact to separate, avoiding adhesion, and ensuring the effectiveness and safety of equipment operation. Attached Figure Description

[0030] The invention will now be further described with reference to the accompanying drawings.

[0031] Figure 1 This is a schematic diagram of the solid-state cabinet of the present invention;

[0032] Figure 2 This is a schematic diagram of the internal structure of the solid-state cabinet of the present invention;

[0033] Figure 3 This is a schematic diagram of the structure of the circuit breaker assembly of the present invention;

[0034] Figure 4 This is a schematic diagram of the internal structure of the circuit breaker assembly of the present invention;

[0035] Figure 5 This is the present invention. Figure 4 Enlarged structural diagram at point A;

[0036] Figure 6 This is a schematic diagram of the internal components of the circuit breaker of the present invention;

[0037] Figure 7 This is a schematic diagram of the structure of the moving contact component of the present invention;

[0038] Figure 8 This is a front structural diagram of the moving contact component of the present invention;

[0039] Figure 9 This is the present invention. Figure 8 Schematic diagram of the cross-sectional structure along the BB direction;

[0040] Figure 10 This is a schematic diagram of the wiring assembly and transition assembly of the present invention;

[0041] Figure 11 This is a schematic diagram of the wiring assembly of the present invention;

[0042] Figure 12 This is a schematic diagram of the wiring assembly of the present invention;

[0043] Figure 13 This is a front structural diagram of the wiring assembly of the present invention;

[0044] Figure 14 This is the present invention. Figure 13 Schematic diagram of the cross-sectional structure along the CC direction;

[0045] Figure 15 This is the present invention. Figure 14 Enlarged structural diagram at point D;

[0046] The annotations in the attached figures are explained as follows:

[0047] 1. Cabinet; 2. Circuit breaker assembly; 3. Wiring assembly; 4. Moving contact assembly; 5. Transmission assembly; 6. Transition assembly; 11. Upper cabinet; 12. Middle cabinet; 13. Lower cabinet; 14. Support plate; 15. Gas box; 16. Partition plate; 20. Claw; 21. Base; 22. Contact plate; 23. Stationary contact; 24. Sleeve; 25. Push rod; 26. Locking plate; 27. Protrusion; 28. Spring 1; 29. ​​Limiting rod; 30. Insulating porcelain insulator; 31. Conductive sheet; 32. Insulating shell; 33. Conductive copper terminal; 34. Insulating bolt; 35. Insulating screw sleeve; 36. Locking screw; 40. 41. Operating lever; 42. Locking groove; 43. Moving contact; 44. Moving contact rod; 45. Connecting shaft; 46. Limiting plate; 47. Spring 2; 48. Sliding shaft 1; 49. Through groove; 50. Side plate; 51. Transmission rod; 52. Insulating pull rod 1; 53. Z-shaped transmission arm; 54. Support shaft rod; 65. Insulating pull rod 2; 66. Horizontal plate; 67. Through groove; 68. Conductive contact; 69. Frame; 60. Inner inclined surface; 61. Outer inclined surface; 200. Pull rope; 311. Locking plate; 312. Inclined block; 313. Insert plate; 331. Limiting groove; 332. Countersunk hole; 400. Sliding shaft 2. Detailed Implementation

[0048] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0049] A copper-bar integrated solid cabinet, such as Figure 1 , Figure 2 As shown, the solid cabinet includes a cabinet body 1, on which an upper cabinet 11, a middle cabinet 12 and a lower cabinet 13 are provided. Inside the cabinet body 1, a support plate 14 and a partition 16 are provided. An air box 15 is provided between the support plate 14 and the partition 16. A circuit breaker assembly 2 is fixedly provided on one side of the air box 15 and on the support plate 14.

[0050] like Figure 3 , Figure 4 As shown, the circuit breaker assembly 2 is provided with several wiring assemblies 3, the circuit breaker assembly 2 is rotatably provided with a moving contact assembly 4, the circuit breaker assembly 2 is rotatably provided with a transmission assembly 5, and a base 21 is fixedly provided below the circuit breaker assembly 2, the base 21 is fixedly installed on the support plate 14.

[0051] A contact plate 22 is fixedly provided inside the circuit breaker assembly 2. Several stationary contacts 23 are fixedly provided on the contact plate 22. A sleeve 24 is fixedly provided on the circuit breaker assembly 2 and on one side of the moving contact assembly 4. A push rod 25 is slidably provided inside the sleeve 24. A transmission assembly 5 is provided on the other side of the moving contact assembly 4. A locking plate 26 is fixedly provided at one end of the push rod 25. A protrusion 27 is fixedly provided on the locking plate 26.

[0052] A spring 28 is fixed between the locking plate 26 and the end of the sleeve 24. The spring 28 is fitted on the outside of the push rod 25. A limiting rod 29 is fixed on the sleeve 24. A latch 20 is fixed below the limiting rod 29. A pull rope 200 is fixed at the end of the push rod 25 away from the locking plate 26. The pull rope 200 extends from the sleeve 24 into the circuit breaker assembly 2. Pulling the pull rope 200 compresses the spring 28, and the latch 20 locks the protrusion 27. Pulling the pull rope 200 again compresses the spring 28. After releasing the pull rope 200, the spring 28 releases its elasticity, pushing the protrusion 27 to slide past the latch 20, thus releasing the fixation on the locking plate 26.

[0053] like Figures 5-10 As shown, the moving contact assembly 4 includes an operating lever 40, on which a locking groove 41 is provided. When the operating lever 40 controls the moving contact rod 43 to contact the stationary contact 23, the locking groove 41 faces the locking plate 26. Under the elastic force of the spring 28, the locking plate 26 is inserted and fixed with the locking groove 41, locking the stationary moving contact rod 43 to prevent accidental contact.

[0054] Several sets of movable contact rods 43 are fixedly provided on the operating lever 40. Movable contact 42 is fixedly provided at the front end of each movable contact rod 43. Each set of movable contact rods 43 is configured with two movable contact rods, so that the two movable contact 42 contact the two sides of the stationary contact 23.

[0055] A connecting shaft 44 is fixedly provided on the side of the movable contact rod 43 facing the transmission assembly 5. A limiting plate 45 is fixedly provided between the two movable contact rods 43. A second spring 46 is fixedly provided on the limiting plate 45. A through groove 48 is provided on the movable contact rod 43. A first sliding shaft 47 and a second sliding shaft 400 are slidably provided on the through groove 48. The first sliding shaft 47 and the second sliding shaft 400 are arranged parallel to each other, and the first sliding shaft 47 and the second sliding shaft 400 are fixedly connected through a side plate 49. The second spring 46 is fixedly connected to the side of the first sliding shaft 47 away from the second sliding shaft 400.

[0056] A transition component 6 is fixedly installed inside the circuit breaker assembly 2. The transition component 6 is located below the wiring assembly 3. The transition component 6 includes a horizontal plate 61. An array of through slots 62 are fixedly installed on the horizontal plate 61. A conductive contact 63 is fixedly installed on the through slots 62. The conductive contact 63 contacts the moving contact 42 on the moving contact rod 43. A frame 64 is fixedly installed at the front end of the conductive contact 63. The frame 64 is made of insulating material. An auxiliary corner block is fixedly installed inside the frame 64. An inner inclined surface 65 is provided on one side of the auxiliary corner block, and an outer inclined surface 66 is provided on the other side. The inner inclined surface 65 and the outer inclined surface 66 are connected to form a protrusion.

[0057] When the moving contact rod 43 rotates toward the outer inclined surface 66, the moving contact 42 contacts the conductive contact 63. During this process, the sliding shaft 400 slides from the outer inclined surface 66 until it passes the protrusion of the auxiliary corner block. At this time, the spring 46 continues to stretch and reaches the inner inclined surface 65. At this time, the moving contact 42 and the conductive contact 63 are tightly connected, and the closing operation is completed.

[0058] Then, during the tripping operation, the second sliding shaft 400 slides from the inner inclined surface 65 over the protrusion and enters the outer inclined surface 66. At this time, the second spring 46 pulls the second sliding shaft 400 towards the limit plate 45. The inclined setting of the outer inclined surface 66 keeps the second sliding shaft 400 moving away from the conductive contact 63. The auxiliary moving contact rod 43 keeps moving away from the conductive contact 63 during tripping, achieving fast, stable and reliable tripping, reducing the probability of contact sticking and reducing the generation of electric arc.

[0059] like Figures 11-15 As shown, the wiring assembly 3 includes an insulating porcelain insulator 30, which is fixed to the top of the circuit breaker assembly 2 and is secured by bolts. An insulating shell 32 is fixedly provided on the top of the insulating porcelain insulator 30, and a terminal slot is provided inside the insulating shell 32. A conductive copper end 33 is fixedly provided in the terminal slot, and a limiting groove 331 is provided on the front side of the conductive copper end 33. A countersunk hole 332 is opened in the limiting groove 331, and an insulating screw sleeve 35 is fixedly provided in the countersunk hole 332.

[0060] One end of the conductive copper end 33 is provided with a bevel. A conductive sheet 31 is fixedly provided inside the insulating porcelain bottle 30. One end of the conductive sheet 31 is located in the through groove 62 and is connected to the conductive contact 63, so that the conductive sheet 31 and the conductive contact 63 make contact and conduction.

[0061] The other end of the conductive sheet 31 is fixedly provided with a insert 313 through the insulating porcelain bottle 30. A beveled block 312 is provided on one side of the insert 313. The beveled block 312 contacts the beveled edge and presses the conductive copper end 33. An insulating bolt 34 is provided through the insert 313. After the insulating bolt 34 passes through the insert 313, it is connected to the insulating screw sleeve 35, so that the conductive sheet 31, the insert 313 and the conductive sheet 31 are in contact and conduction.

[0062] A locking plate 311 is provided on one side of the conductive sheet 31. A locking screw 36 is fixed on the locking plate 311. The locking screw 36 passes through the locking plate 311 and is threaded to the inner wall of the insulating porcelain bottle 30. The insert 313 at the top of the conductive sheet 31 is fixed to the top of the insulating porcelain bottle 30, so that the insert 313 and the conductive copper end 33 are fixed in the terminal slot. The external busbar is connected to the conductive copper end 33 to complete the current conduction.

[0063] In this embodiment, the transmission assembly 5 includes a transmission rod 50 and a support shaft 53. Several insulating pull rods 51 are rotatably mounted on the transmission rod 50. Both ends of the support shaft 53 are fixedly mounted inside the circuit breaker assembly 2. Several Z-shaped transmission arms 52 are rotatably mounted on the support shaft 53. One end of the Z-shaped transmission arm 52 is rotatably connected to the insulating pull rod 51, and the other end is rotatably connected to the insulating pull rod 54. The insulating pull rod 54 is rotatably connected to the connecting shaft 44.

[0064] When the ring main unit is in operation, first pull the pull rope 200 to fix the locking plate 26 at the latch 20. Then, by starting the motor structure in the air box (this is the prior art), the transmission rod 50 in the transmission assembly 5 is controlled to rotate. The rotation of the transmission rod 50 transmits the pulling or pushing force to the moving contact rod 43 through the insulating pull rod 1 51, the Z-shaped transmission arm 52, and the insulating pull rod 2 54. This controls the moving contact rod 43 to move towards the stationary contact 23 or the conductive contact 63, thus achieving conduction with the stationary contact 23 or the conductive contact 63.

[0065] When the insulating porcelain bottle 30 or the conductive copper terminal 33 needs to be replaced, the insulating bolt 34 is removed, and then the locking screw 36 is removed. The insulating porcelain bottle 30 is then removed or the conductive copper terminal 33 is replaced before connection and installation. Independent components can be replaced, improving the flexibility of use. The replacement cost of easily damaged parts is reduced, saving consumables. At the same time, the conductive copper terminal 33 has an insulating shell 32 on its edge, which can protect the unconnected side of the conductive copper terminal 33, prevent accidental contact during installation, and prevent birds from accidentally touching it, thus improving the safety of the conductive copper terminal 33.

[0066] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A copper-framed integrated solid cabinet, comprising a cabinet body (1), wherein a support plate (14) is provided inside the cabinet body (1), characterized in that, A circuit breaker assembly (2) is fixedly mounted on the support plate (14). The circuit breaker assembly (2) includes: The moving contact assembly (4) is rotatably disposed within the circuit breaker assembly (2), and a transmission assembly (5) is rotatably disposed on one side of the moving contact assembly (4). Among them, the moving contact assembly (4) includes an operating lever (40), a number of moving contact rods (43) are fixedly provided on the operating lever (40), and a through groove (48) is provided on the moving contact rod (43). A sliding shaft one (47) and a sliding shaft two (400) are slidably arranged in parallel within the through groove (48). The sliding shaft one (47) and the sliding shaft two (400) are connected by a side plate (49). The circuit breaker assembly (2) further includes a transition assembly (6), which is fixedly installed between the wiring assembly (3) and the moving contact assembly (4); The transition component (6) includes: A horizontal plate (61) is fixedly provided with an array of through slots (62), and a conductive contact (63) is fixedly provided on the through slots (62). The conductive sheet (31) is connected to the conductive contact (63) after entering the through slot (62). The frame (64) is fixed to the front end of the conductive contact (63). An auxiliary corner block is fixed inside the frame (64). An inner inclined surface (65) is provided on one side of the auxiliary corner block, and an outer inclined surface (66) is provided on the other side. The inner inclined surface (65) and the outer inclined surface (66) are connected to form a protrusion. The inner inclined surface (65) and the outer inclined surface (66) are slidably connected to the sliding shaft (400). The circuit breaker assembly (2) is fixedly provided with a contact plate (22), and a number of stationary contacts (23) are fixedly provided on the contact plate (22). The circuit breaker assembly (2) is fixedly provided with a sleeve (24), and a push rod (25) is slidably provided inside the sleeve (24). One end of the push rod (25) is fixedly provided with a locking plate (26), and the other end is connected to a pull rope (200). A protrusion (27) is fixedly provided on the locking plate (26). Among them, the locking plate (26) and the sleeve (24) are connected by a spring (28), and a limiting rod (29) is fixedly provided on the sleeve (24). A pawl (20) is fixedly provided below the limiting rod (29) to fix the protrusion (27). The operating lever (40) is provided with a locking groove (41) for connecting and locking with the locking plate (26); A movable contact (42) is fixedly provided at the front end of the movable contact rod (43), and a limiting plate (45) is fixedly provided between the two movable contact rods (43). A second spring (46) is fixedly provided on the limiting plate (45) to achieve connection with the sliding shaft (47).

2. The copper-framed integrated solid cabinet according to claim 1, characterized in that, The circuit breaker assembly (2) also includes a wiring assembly (3), which is fixedly mounted on the circuit breaker assembly (2); The wiring assembly (3) includes an insulating porcelain insulator (30), which is fixed on the top of the circuit breaker assembly (2). An insulating shell (32) is fixed on the top of the insulating porcelain insulator (30), and a detachable conductive copper terminal (33) is provided inside the insulating shell (32).

3. The copper-framed integrated solid cabinet according to claim 2, characterized in that, The front side of the conductive copper end (33) is provided with a limiting groove (331), the limiting groove (331) is provided with a countersunk hole (332), the countersunk hole (332) is fixedly provided with an insulating screw sleeve (35), and one end of the conductive copper end (33) is provided with a bevel.

4. The copper-framed integrated solid cabinet according to claim 3, characterized in that, The insulating porcelain bottle (30) is fixedly provided with a conductive sheet (31), and a plug (313) is fixedly provided on the conductive sheet (31). A bevel block (312) is provided on one side of the plug (313), and the bevel block (312) is in contact with the bevel. The insert (313) is provided with an insulating bolt (34), which passes through the insert (313) and is connected to the insulating sleeve (35).

5. The copper-bar integrated solid cabinet according to claim 4, characterized in that, A locking plate (311) is provided on one side of the conductive sheet (31), and a locking screw (36) is fixed on the locking plate (311). The locking screw (36) passes through the locking plate (311) and connects to the inner wall of the insulating porcelain bottle (30).

6. The copper-bar integrated solid cabinet according to claim 1, characterized in that, The transmission assembly (5) includes: A transmission rod (50) is provided with a plurality of insulating pull rods (51) rotatably mounted on the transmission rod (50). A connecting shaft (44) is fixedly mounted on one side of the moving contact rod (43). An insulating pull rod (54) is rotatably mounted on the connecting shaft (44). The support shaft (53) is fixed inside the circuit breaker assembly (2). Several Z-shaped transmission arms (52) are rotatably mounted on the support shaft (53). One end of the Z-shaped transmission arm (52) is rotatably connected to the first insulating pull rod (51), and the other end is rotatably connected to the second insulating pull rod (54).

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