Modular master backup switch transfer cabinet

Abstract

This utility model relates to the field of switchgear technology, specifically to a modular main / standby switchgear, including a cabinet body; the cabinet body is provided with a standby positive input connection copper busbar and a standby negative input connection copper busbar; the cabinet body is provided with multiple circuit breaker modules; each circuit breaker module includes a main circuit breaker, a standby circuit breaker, a resistor, a first positive input copper busbar, a first negative input copper busbar, a first positive output copper busbar, a first negative output copper busbar, a positive connection copper busbar, a positive output copper busbar, a second positive input copper busbar, a second negative input copper busbar, a second positive output copper busbar, a second negative output copper busbar, a negative connection copper busbar, and a negative output copper busbar. The circuit breaker module of this utility model adopts a dual-circuit breaker structure, capable of simultaneously connecting two energy storage converters. After the main energy storage converter fails, it can be manually switched to the standby energy storage converter, and connected to the standby energy storage converter via the standby circuit breaker, thereby achieving timely restoration of downstream power supply.

Description

Technical Field

[0001] This utility model relates to the field of switchgear technology, specifically to a modular main / standby switchgear. Background Technology

[0002] In the power system field, switchgear, as a core electrical equipment, mainly consists of sheet metal cabinet structure, circuit breakers, connecting copper busbars, and indicator lights. With its reliable circuit conduction and disconnection functions, it is widely used in high-voltage circuit systems such as energy storage converters and lithium battery testing equipment, undertaking the important responsibilities of power distribution and circuit protection.

[0003] However, in actual operation, existing switchgear application solutions have significant shortcomings. When the upstream energy storage converter fails, the connected switchgear triggers a protection mechanism to cut off the circuit, causing a power outage for the downstream lithium battery testing equipment. Due to the lack of effective fault isolation and rapid power restoration measures, the normal operation of downstream equipment is severely affected. This not only forces the lithium battery testing work to stop, reducing production efficiency, but may also cause irreversible damage to the testing equipment due to the sudden power outage, leading to economic losses. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned shortcomings in the existing technology by providing a modular main / standby switchgear.

[0005] The purpose of this utility model is achieved through the following technical solution: a modular main and backup switchgear, including a cabinet body; the cabinet body is provided with a backup positive input connection copper busbar and a backup negative input connection copper busbar; the cabinet body is provided with multiple circuit breaker modules;

[0006] Each circuit breaker module includes a main circuit breaker, a backup circuit breaker, a resistor, a first positive input copper busbar, a first negative input copper busbar, a first positive output copper busbar, a first negative output copper busbar, a positive connecting copper busbar, a positive output copper busbar, a second positive input copper busbar, a second negative input copper busbar, a second positive output copper busbar, a second negative output copper busbar, a negative connecting copper busbar, and a negative output copper busbar.

[0007] The first positive input copper busbar and the first negative input copper busbar are respectively connected to the input terminals of the main circuit breaker; the second positive input copper busbar and the second negative input copper busbar are respectively connected to the input terminals of the standby circuit breaker; the first positive output copper busbar and the first negative output copper busbar are respectively connected to the output terminals of the main circuit breaker; the second positive output copper busbar and the second negative output copper busbar are respectively connected to the output terminals of the standby circuit breaker; the first positive output copper busbar and the second positive output copper busbar are respectively connected to the positive connecting copper busbar; the first negative output copper busbar and the second negative output copper busbar are respectively connected to the negative connecting copper busbar; the resistor is disposed between the positive connecting copper busbar and the negative connecting copper busbar; the positive connecting copper busbar is connected to the positive output copper busbar; the negative connecting copper busbar is connected to the negative output copper busbar.

[0008] Each second positive input copper busbar is connected to a spare positive input connection copper busbar; each second negative input copper busbar is connected to a spare negative input connection copper busbar.

[0009] The present invention is further provided with insulating partitions between the first positive input copper busbar and the first negative input copper busbar, and between the positive output copper busbar and the negative output copper busbar.

[0010] The present invention is further configured such that the front of the cabinet body is provided with a movable door; the movable door is provided with indicator lights for displaying the working status of the main circuit breaker and the standby circuit breaker.

[0011] The present invention is further configured such that a heat dissipation window is provided on the side of the cabinet body; the heat dissipation window is provided with louvers.

[0012] The present invention is further configured such that the top of the cabinet body is provided with a main inlet hole and a secondary inlet hole; and the bottom of the cabinet body is provided with an outlet hole.

[0013] The present invention is further configured such that the top of the cabinet body is provided with an upper assembly plate; the sides of the front and back of the cabinet body are provided with side assembly plates; and the bottom of the cabinet body is provided with a lower assembly plate.

[0014] The present invention is further provided that the top of the cabinet body is provided with a lifting ring.

[0015] The present invention is further configured such that the front of the cabinet body includes a first safety sealing plate, an anti-misoperation panel, a second safety sealing plate, and a third safety sealing plate arranged sequentially from top to bottom; the main circuit breaker and the backup circuit breaker are both exposed on the anti-misoperation panel.

[0016] The present invention is further configured such that the anti-misoperation panel is provided with a shielding plate for blocking the backup circuit breaker; one end of the shielding plate is hinged to the anti-misoperation panel; and a latch is provided between the other end of the shielding plate and the anti-misoperation panel.

[0017] The beneficial effects of this utility model are as follows: The circuit breaker module of this utility model adopts a dual circuit breaker structure, which can connect two energy storage converters at the same time. After the main energy storage converter is damaged, it can be manually switched to the backup energy storage converter. The backup circuit breaker is connected to the backup energy storage converter, thereby realizing the timely restoration of downstream power supply. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a diagram of the internal structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of multiple circuit breaker modules working together according to this utility model;

[0021] Figure 4 This is a structural schematic diagram of a single circuit breaker module of this utility model;

[0022] Figure 5 This is an exploded view of the structure of this utility model;

[0023] Figure 6 This is a schematic diagram of the structure behind the hidden movable door of this utility model;

[0024] Figure 7 This is the electrical schematic diagram of this utility model;

[0025] The components include: 1. Cabinet body; 11. Door; 12. Indicator light; 13. Louvers; 14. Main cable inlet; 15. Secondary cable inlet; 16. Hanging ring; 17. Ventilation window; 21. Spare positive input connection copper busbar; 22. Spare negative input connection copper busbar; 3. Main circuit breaker; 31. First positive input copper busbar; 32. First negative input copper busbar; 33. First positive output copper busbar; 34. First negative output copper busbar; 4. Backup circuit breaker; 41. Second positive input copper busbar; 42. ... 43. Second negative input copper busbar; 44. Second positive output copper busbar; 5. Resistor; 51. Positive connection copper busbar; 52. Positive output copper busbar; 53. Negative connection copper busbar; 54. Negative output copper busbar; 55. Insulating partition; 61. Upper assembly plate; 62. Side assembly plate; 63. Lower assembly plate; 71. First safety sealing plate; 72. Second safety sealing plate; 73. Third safety sealing plate; 8. Anti-misoperation panel; 81. Shielding plate; 82. Lock; 9. Cable outlet hole. Detailed Implementation

[0026] The present invention will be further described in conjunction with the following embodiments.

[0027] Depend on Figures 1 to 7As can be seen, the modular main and backup switchgear described in this embodiment includes a cabinet body 1; the cabinet body 1 is provided with a backup positive input connection copper busbar 21 and a backup negative input connection copper busbar 22; the cabinet body 1 is provided with multiple circuit breaker modules;

[0028] Each circuit breaker module includes a main circuit breaker 3, a backup circuit breaker 4, a resistor 5, a first positive input copper busbar 31, a first negative input copper busbar 32, a first positive output copper busbar 33, a first negative output copper busbar 34, a positive connecting copper busbar 51, a positive output copper busbar 52, a second positive input copper busbar 41, a second negative input copper busbar 42, a second positive output copper busbar 43, a second negative output copper busbar 44, a negative connecting copper busbar 53, and a negative output copper busbar 54.

[0029] The first positive input copper busbar 31 and the first negative input copper busbar 32 are respectively connected to the input terminals of the main circuit breaker 3; the second positive input copper busbar 41 and the second negative input copper busbar 42 are respectively connected to the input terminals of the standby circuit breaker 4; the first positive output copper busbar 33 and the first negative output copper busbar 34 are respectively connected to the output terminals of the main circuit breaker 3; the second positive output copper busbar 43 and the second negative output copper busbar 44 are respectively connected to the output terminals of the standby circuit breaker 4; the first positive output copper busbar 33 and the second positive output copper busbar 43 are respectively connected to the positive connecting copper busbar 51; the first negative output copper busbar 34 and the second negative output copper busbar 44 are respectively connected to the negative connecting copper busbar 53; the resistor 5 is disposed between the positive connecting copper busbar 51 and the negative connecting copper busbar 53; the positive connecting copper busbar 51 is connected to the positive output copper busbar 52; the negative connecting copper busbar 53 is connected to the negative output copper busbar 54;

[0030] Each second positive input copper busbar 41 is connected to the spare positive input connection copper busbar 21; each second negative input copper busbar 42 is connected to the spare negative input connection copper busbar 22.

[0031] Specifically, in normal use, each main circuit breaker 3 of the modular main and backup switchgear described in this embodiment is connected to each energy storage converter through the first positive input copper busbar 31 and the first negative input copper busbar 32, while each backup circuit breaker 4 is connected to the same backup energy storage converter through the second positive input copper busbar 41 and the second negative input copper busbar 42.

[0032] During normal operation, the main circuit breaker 3 in each circuit breaker module is in the closed state, and the backup circuit breaker 4 in each circuit breaker module is in the open state. When the upstream equipment (energy storage converter) of the main circuit breaker 3 of a certain circuit breaker module fails, the upstream equipment stops supplying power, and the downstream equipment of the main circuit breaker 3 of the circuit breaker module will stop working due to power loss. At this time, the worker can manually close the backup circuit breaker 4 of the circuit breaker module to restore the circuit conduction, and the downstream equipment will be powered back on through the backup energy storage converter and start working.

[0033] In this embodiment, a modular main / standby switchgear is provided with insulating partitions 55 between the first positive input copper busbar 31 and the first negative input copper busbar 32, and between the positive output copper busbar 52 and the negative output copper busbar 54. These partitions prevent short circuits between the first positive input copper busbar 31 and the first negative input copper busbar 32, and also prevent short circuits between the positive output copper busbar 52 and the negative output copper busbar 54.

[0034] This embodiment describes a modular main / standby switchgear. The cabinet body 1 has a movable door 11 on its front. The movable door 11 is equipped with indicator lights 12 for displaying the operating status of the main circuit breaker 3 and the standby circuit breaker 4. This arrangement facilitates observation of the current operating status of the main circuit breaker 3 and the standby circuit breaker 4. When the upstream device (energy storage converter) of the main circuit breaker 3 of a certain circuit breaker module fails, the indicator light 12 goes out, the upstream device stops supplying power, and the downstream device of the main circuit breaker 3 of the circuit breaker module will stop working due to power loss. At this time, the worker can manually close the standby circuit breaker 4 of the circuit breaker module to restore circuit continuity. The indicator light 12 will then light up, and the downstream device will regain power through the standby energy storage converter and start working again.

[0035] The modular main / standby switchgear described in this embodiment has a heat dissipation window 17 on the side of the cabinet body 1; the heat dissipation window 17 is equipped with louvers 13. The above configuration facilitates heat dissipation from the cabinet body 1.

[0036] This embodiment describes a modular main / standby switchgear, wherein the top of the cabinet body 1 is provided with a main inlet hole 14 and a secondary inlet hole 15; and the bottom of the cabinet body 1 is provided with an outlet hole 9. This configuration facilitates cable routing.

[0037] The modular main / standby switchgear described in this embodiment has an upper assembly plate 61 on the top of the cabinet body 1; side assembly plates 62 on the front and back sides of the cabinet body 1; and a lower assembly plate 63 on the bottom of the cabinet body 1.

[0038] Specifically, in this embodiment, the modular main and backup switch switching cabinet is composed of multiple individual cabinets. The upper assembly plate 61, the side assembly plate 62, and the lower assembly plate 63 of the individual cabinets are disassembled and assembled by bolts.

[0039] This embodiment describes a modular main / standby switchgear, wherein the top of the cabinet body 1 is equipped with a lifting ring 16. This feature facilitates the hoisting of the cabinet body 1.

[0040] This embodiment describes a modular main / standby switchgear. The front of the cabinet body 1 includes, from top to bottom, a first safety cover 71, an anti-misoperation panel 8, a second safety cover 72, and a third safety cover 73. Both the main circuit breaker 3 and the standby circuit breaker 4 are exposed on the anti-misoperation panel 8. By setting the first safety cover 71, the second safety cover 72, and the third safety cover 73, the copper busbars can be prevented from being exposed, thus protecting the user.

[0041] This embodiment describes a modular main / standby switchgear. The anti-misoperation panel 8 is equipped with a shielding plate 81 for blocking the standby circuit breaker 4. One end of the shielding plate 81 is hinged to the anti-misoperation panel 8; a latch 82 is provided between the other end of the shielding plate 81 and the anti-misoperation panel 8. Specifically, under normal circumstances, the main circuit breaker 3 can be directly controlled for switching on and off. By setting the shielding plate 81, it is possible to prevent users from accidentally touching the standby circuit breaker 4 under normal circumstances. When the main energy storage converter fails, the user can open the latch 82 to turn on the standby circuit breaker 4 and draw power from the standby energy storage converter.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A modular master backup switchgear transfer cubicle, characterized by: Includes a cabinet body; the cabinet body is equipped with a spare positive input connection copper busbar and a spare negative input connection copper busbar; the cabinet body is equipped with multiple circuit breaker modules; Each circuit breaker module includes a main circuit breaker, a backup circuit breaker, a resistor, a first positive input copper busbar, a first negative input copper busbar, a first positive output copper busbar, a first negative output copper busbar, a positive connecting copper busbar, a positive output copper busbar, a second positive input copper busbar, a second negative input copper busbar, a second positive output copper busbar, a second negative output copper busbar, a negative connecting copper busbar, and a negative output copper busbar. The first positive input copper busbar and the first negative input copper busbar are respectively connected to the input terminals of the main circuit breaker; the second positive input copper busbar and the second negative input copper busbar are respectively connected to the input terminals of the standby circuit breaker; the first positive output copper busbar and the first negative output copper busbar are respectively connected to the output terminals of the main circuit breaker; the second positive output copper busbar and the second negative output copper busbar are respectively connected to the output terminals of the standby circuit breaker; the first positive output copper busbar and the second positive output copper busbar are respectively connected to the positive connecting copper busbar; the first negative output copper busbar and the second negative output copper busbar are respectively connected to the negative connecting copper busbar; the resistor is disposed between the positive connecting copper busbar and the negative connecting copper busbar; the positive connecting copper busbar is connected to the positive output copper busbar. The negative connecting copper busbar is connected to the negative output copper busbar; Each second positive input copper busbar is connected to a spare positive input connection copper busbar; each second negative input copper busbar is connected to a spare negative input connection copper busbar.

2. The modular master backup switchgear cabinet of claim 1, wherein: Insulating partitions are provided between the first positive input copper busbar and the first negative input copper busbar, as well as between the positive output copper busbar and the negative output copper busbar.

3. The modular master backup switchgear cabinet of claim 1, wherein: The front of the cabinet body is equipped with a movable door; the movable door is equipped with indicator lights for displaying the working status of the main circuit breaker and the standby circuit breaker.

4. The modular main backup switch transfer cabinet of claim 1, wherein: The side of the cabinet body is provided with a heat dissipation window; the heat dissipation window is provided with louvers.

5. The modular active-standby switchgear cabinet of claim 1, wherein: The top of the cabinet body is provided with a main cable inlet and a secondary cable inlet; the bottom of the cabinet body is provided with a cable outlet.

6. The modular active-standby switchgear cabinet of claim 1, wherein: The top of the cabinet body is provided with an upper assembly plate; the sides of the front and back of the cabinet body are provided with side assembly plates; and the bottom of the cabinet body is provided with a lower assembly plate.

7. The modular main backup switch transfer cabinet of claim 1, wherein: The top of the cabinet body is equipped with a lifting ring.

8. The modular active-standby switchgear cabinet of claim 1, wherein: The front of the cabinet body includes a first safety cover, an anti-misoperation panel, a second safety cover, and a third safety cover arranged sequentially from top to bottom; the main circuit breaker and the backup circuit breaker are both exposed on the anti-misoperation panel.

9. The modular master backup switchgear cabinet of claim 8, wherein: The anti-misoperation panel is provided with a shield for blocking the backup circuit breaker; one end of the shield is hinged to the anti-misoperation panel; and a latch is provided between the other end of the shield and the anti-misoperation panel.

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