Power distribution cabinet

Abstract

The utility model relates to the technical field of electrical equipment, in particular to a power distribution cabinet. The power distribution cabinet comprises a cabinet body, a circuit breaker, an electric reactor, a current transformer and a contactor, the circuit breaker, the electric reactor, the current transformer and the contactor are all located in the cabinet body, the circuit breaker is electrically connected with the electric reactor, the electric reactor is electrically connected with the current transformer, and the current transformer is electrically connected with the contactor. A first installation area and a second installation area are arranged in the cabinet body, the circuit breaker is located in the first installation area, the electric reactor, the current transformer and the contactor are all located in the second installation area, and a maintenance gap is formed between the first installation area and the second installation area. According to the power distribution cabinet provided by the invention, the maintenance gap can be formed between the first installation area and the second installation area, maintenance and wiring of each device in the cabinet body can be facilitated through the maintenance gap in the middle, and the space of each installation area in the cabinet body can be fully utilized, so that the layout is reasonable and compact.

Description

Technical Field

[0001] This application relates to the technical field of electrical equipment, and particularly to a distribution cabinet. Background Art

[0002] The distribution cabinet plays a core role in power distribution. It can effectively transmit the electric energy from the power grid to various power-consuming terminals to meet different power consumption requirements.

[0003] The interior of the existing distribution cabinet is usually configured with a circuit breaker, a reactor, a current transformer, and a contactor to ensure the normal operation of the distribution cabinet. However, the layout of the various components inside the existing distribution cabinet is unreasonable, and the arrangement of the various components inside the distribution cabinet is relatively messy, making the components inside the distribution cabinet fill the entire interior space of the cabinet body, which is not convenient for repairing the components inside the cabinet body and routing wires.

[0004] Therefore, there is an urgent need for a distribution cabinet to solve the above problems. Summary of the Utility Model

[0005] The purpose of this application is to provide a distribution cabinet, which is convenient for repairing the various components inside the cabinet body and routing wires, and can also make full use of the space in each installation area inside the cabinet, so that the layout is reasonable and compact.

[0006] To achieve this purpose, this application adopts the following technical solutions:

[0007] A distribution cabinet includes a cabinet body, a circuit breaker, a reactor, a current transformer, and a contactor. The circuit breaker, the reactor, the current transformer, and the contactor are all located inside the cabinet body. The circuit breaker is electrically connected to the reactor, the reactor is electrically connected to the current transformer, and the current transformer is electrically connected to the contactor;

[0008] A first installation area and a second installation area are provided inside the cabinet body. The circuit breaker is located in the first installation area, and the reactor, the current transformer, and the contactor are all located in the second installation area. And a maintenance gap is formed between the first installation area and the second installation area.

[0009] As an optional solution, the reactor, the current transformer, and the contactor are arranged in sequence from bottom to top in the second installation area.

[0010] As an optional solution, the reactor is installed on the bottom wall of the cabinet body.

[0011] As an optional solution, the first installation area and the second installation area are arranged relative to each other along a first horizontal direction, the two opposite side walls of the cabinet along the first horizontal direction are respectively the first side wall and the second side wall, the circuit breaker is installed on the first side wall, and the current transformer and the contactor are both installed on the second side wall.

[0012] As an optional solution, the first installation area and the second installation area are arranged relative to each other along a first horizontal direction, the two opposite side walls of the cabinet along the first horizontal direction are respectively the first side wall and the second side wall, the two opposite side walls of the cabinet along the second horizontal direction are respectively the front side wall and the rear side wall, the circuit breaker is installed on the first side wall, the current transformer and the contactor are both installed on the rear side wall, and the first horizontal direction and the second horizontal direction are perpendicular to each other.

[0013] As an optional solution, the circuit breaker includes a circuit breaker body and a first wiring terminal, wherein the first wiring terminal is provided on a side of the circuit breaker body facing the maintenance gap;

[0014] The reactor includes a reactor body and a first connecting terminal. The first connecting terminal is provided on a side of the reactor body facing the maintenance gap. The first wiring terminal is electrically connected to the first connecting terminal.

[0015] As an optional solution, the circuit breaker further includes a second terminal, which is arranged on the lower side of the circuit breaker body;

[0016] The power distribution cabinet further includes a voltage dividing resistor, which is located in the first installation area and at the lower side of the circuit breaker body, and is electrically connected to the second wiring terminal.

[0017] As an optional solution, the power distribution cabinet also includes a lightning rod, which is located in the first installation area and on the lower side of the circuit breaker body. The lightning rod and the voltage divider resistor are arranged in the upper and lower directions, and the lightning rod is electrically connected to the second terminal.

[0018] As an optional solution, the circuit breaker further includes a second terminal, which is arranged on the lower side of the circuit breaker body;

[0019] The power distribution cabinet further includes an insulator, and both the first wiring terminal and the second wiring terminal are provided with the insulator.

[0020] As an optional solution, the reactor body also includes a second connecting terminal arranged on the reactor body, the current transformer includes a current transformer body, a first wiring part and a second wiring part, the first wiring part and the second wiring part are both arranged on the current transformer body, the contactor includes a contactor body and a connecting part arranged on the contactor body, the second connecting terminal is electrically connected to the first wiring part, and the second wiring part is electrically connected to the connecting part.

[0021] The present application provides a distribution cabinet, which includes a cabinet body, a circuit breaker, a reactor, a current transformer and a contactor, wherein the circuit breaker, the reactor, the current transformer and the contactor are all located inside the cabinet body, and a first installation area and a second installation area are provided inside the cabinet body. The circuit breaker is located in the first installation area, and the reactor, the current transformer and the contactor are all located in the second installation area. A maintenance gap is formed between the first installation area and the second installation area, so that it is convenient to repair and route various components inside the cabinet body through the maintenance gap in the middle, and it can also make full use of the space in each installation area in the cabinet body, so that the layout of the distribution cabinet is reasonable and compact. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the structure of the power distribution cabinet provided in Example 1 of this application specification. Figure 1 ;

[0023] Figure 2 This is a schematic diagram of the structure of the power distribution cabinet provided in Example 1 of this application specification. Figure 2 ;

[0024] Figure 3 This is a schematic diagram of the structure of the power distribution cabinet provided in Example 1 of this application specification. Figure 3 ;

[0025] Figure 4 This is a schematic diagram of the structure of the power distribution cabinet provided in Example 2 of this application specification. Figure 1 ;

[0026] Figure 5 This is a schematic diagram of the structure of the power distribution cabinet provided in Example 2 of this application specification. Figure 2 ;

[0027] Figure 6 This is a schematic diagram of the structure of the power distribution cabinet provided in Example 2 of this application specification. Figure 3 .

[0028] In the figure:

[0029] 1. Circuit breaker; 11. Circuit breaker body; 12. First terminal; 13. Second terminal; 2. Reactor; 21. Reactor body; 22. First connection terminal; 23. Second connection terminal; 3. Current transformer; 31. Current transformer body; 32. First wiring part; 33. Second wiring part; 4. Contactor; 41. Contactor body; 42. Connection part; 5. Voltage-dividing resistor; 6. Lightning rod; 7. Insulator; 8. Cabinet; 81. First installation area; 82. Second installation area; 83. Maintenance gap; 84. First side wall; 85. Second side wall; 86. Bottom wall. Detailed implementation manner

[0030] To make the technical problems solved by this application, the technical solutions adopted, and the achieved technical effects clearer, the technical solutions of this application will be further described below with reference to the drawings and through specific implementation manners.

[0031] In the description of this application, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; 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 connection of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific situations.

[0032] In this application, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "above", and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature has a higher horizontal height than the second feature. The first feature being "below", "below", and "beneath" the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicating that the first feature has a lower horizontal height than the second feature.

[0033] In the description of this embodiment, the orientation or positional relationship terms such as "above", "below", "left", and "right" are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation to this application. In addition, the terms "first" and "second" are only used for distinction in description and do not have special meanings.

[0034] Embodiment 1

[0035] As Figures 1 to 3As shown, this embodiment provides a power distribution cabinet, which includes a circuit breaker 1, a reactor 2, a current transformer 3 and a contactor 4, wherein the circuit breaker 1 is used to distribute electrical energy, and the circuit breaker 1 can cut off and connect the load circuit to prevent frequent starting of abnormal motors. The circuit breaker 1 is electrically connected to the reactor 2, and the reactor 2 can prevent current changes. The reactor 2 is electrically connected to the current transformer 3, and the current transformer 3 has a current conversion function. The current transformer 3 is electrically connected to the contactor 4. When the current in the circuit exceeds the rated current of the contactor 4, the contactor 4 will automatically disconnect the circuit, thereby preventing the circuit and electrical equipment from being damaged. The circuit breaker 1, the reactor 2, the current transformer 3 and the contactor 4 cooperate with each other to ensure the normal power distribution of the distribution cabinet.

[0036] The layout of the various components inside the existing distribution cabinet is unreasonable, and the arrangement of the various components inside the distribution cabinet is relatively messy, so that the components inside the distribution cabinet fill the entire internal space of the cabinet, making it inconvenient to repair and route the components inside the cabinet.

[0037] In order to solve the above problems, Figures 1 to 3 As shown, the power distribution cabinet provided in this embodiment further includes a cabinet body 8, wherein the circuit breaker 1, the reactor 2, the current transformer 3, and the contactor 4 are all located inside the cabinet body 8. A first installation area 81 and a second installation area 82 are provided inside the cabinet body 8. The circuit breaker 1 is located in the first installation area 81, and the reactor 2, the current transformer 3, and the contactor 4 are all located in the first installation area 81. A maintenance gap 83 is formed between the first installation area 81 and the second installation area 82. The power distribution cabinet provided in this embodiment, by forming the maintenance gap 83 between the first installation area 81 and the second installation area 82, facilitates maintenance and wiring of various components inside the cabinet body 8 through the intermediate maintenance gap 83. Furthermore, the space in each installation area within the cabinet body 8 can be fully utilized, resulting in a reasonable and compact layout of the power distribution cabinet.

[0038] Optionally, in this embodiment, if Figures 1 to 3 As shown, the reactor 2, current transformer 3, and contactor 4 are arranged sequentially from bottom to top in the second installation area 82. The above arrangement of the reactor 2, current transformer 3, and contactor 4 makes it easier to achieve electrical connection between the reactor 2, current transformer 3, and contactor 4, and also facilitates leading the output line of the contactor 4 from the top of the power distribution cabinet.

[0039] In this embodiment, the reactor 2 is mounted on the bottom wall 86 of the cabinet 8. Since the reactor 2 is large in size and weight, the stability and reliability of the support and fixation of the reactor 2 are ensured by mounting the reactor 2 on the bottom wall 86 of the cabinet 8.

[0040] In this embodiment, the first installation area 81 and the second installation area 82 are arranged opposite to each other along the first horizontal direction (the left-right direction in the figure). The two side walls of the cabinet 8 opposite to each other along the first horizontal direction are the first side wall 84 and the second side wall 85 respectively. The circuit breaker 1 is installed on the first side wall 84, and both the current transformer 3 and the contactor 4 are installed on the second side wall 85. With the above arrangement, the current transformer 3 and the contactor 4 are both arranged opposite to the circuit breaker 1, which is more convenient for the electrical connection between each device, reduces the wiring length between each device, and reduces the cost.

[0041] In this embodiment, as Figures 1 to 3 shown, the circuit breaker 1 includes a circuit breaker body 11 and a first wiring terminal 12. The first wiring terminal 12 is arranged on the circuit breaker body 11 facing the maintenance gap 83 (i.e., the right side in the figure). The reactor 2 includes a reactor body 21 and a first connection terminal 22. The first connection terminal 22 is arranged on one side of the reactor body 21 facing the maintenance gap 83 (i.e., the left side in the figure). The first wiring terminal 12 is electrically connected to the first connection terminal 22. With the above arrangement, the first wiring terminal 12 and the first connection terminal 22 are arranged face to face along the left-right direction, and both the first wiring terminal 12 and the first connection terminal 22 face one side of the maintenance gap 83, which is more convenient for realizing the electrical connection between the circuit breaker 1 and the reactor 2 through the maintenance gap 83. Optionally, in this embodiment, the first wiring terminal 12 and the first connection terminal 22 can be electrically connected through a cable (not shown in the figure). In other embodiments, the first wiring terminal 12 and the first connection terminal 22 can also be directly electrically connected. Optionally, in this embodiment, both the first wiring terminal 12 and the first connection terminal 22 can be connecting copper bars. In other embodiments, the first wiring terminal 12 and the first connection terminal 22 can also be other forms of electrical connectors, such as wire harnesses.

[0042] In this embodiment, as Figures 1 to 3 shown, the reactor body 21 further includes a second connection terminal 23 arranged on the reactor body 21. The current transformer 3 includes a current transformer body 31, a first wiring part 32 and a second wiring part 33. Both the first wiring part 32 and the second wiring part 33 are arranged on the current transformer body 31. The contactor 4 includes a contactor body 41 and a connection part 42 arranged on the contactor body 41. The second connection terminal 23 is electrically connected to the first wiring part 32, thereby realizing the electrical connection between the reactor 2 and the current transformer 3. The second wiring part 33 is electrically connected to the connection part 42, thereby realizing the electrical connection between the current transformer 3 and the contactor 4. Optionally, in this embodiment, the second connection terminal 23, the first wiring part 32, the second wiring part 33 and the connection part 42 are all connecting copper bars. In other embodiments, the second connection terminal 23, the first wiring part 32, the second wiring part 33 and the connection part 42 can also be other forms of electrical connectors, such as wire harnesses.

[0043] Optionally, in this embodiment, if Figures 1 to 3 As shown, the second connection terminal 23 is located at the top of the reactor body 21, which further facilitates the electrical connection between the second connection terminal 23 and the first wiring portion 32 above. Optionally, in this embodiment, the first wiring portion 32 and the second wiring portion 33 are both located on the side of the current transformer body 31 facing the first side, and the connecting portion 42 is located on the side of the contactor body 41 facing the first side, which further facilitates the electrical connection between the second connection terminal 23 and the first wiring portion 32, and also facilitates the electrical connection between the second wiring portion 33 and the connecting portion 42.

[0044] Optionally, in this embodiment, if Figures 1 to 3 As shown, the circuit breaker 1 and the contactor 4 are arranged relative to each other in the left-right direction, thereby fully utilizing the space on the top of the cabinet 8 .

[0045] Optionally, in this embodiment, if Figures 1 to 3 As shown, the circuit breaker 1 further includes a second terminal 13, which is disposed on the underside of the circuit breaker body 11. The power distribution cabinet further includes a voltage-dividing resistor 5, which functions as a voltage divider. The voltage-dividing resistor 5 is located in the first mounting area 81 and on the underside of the circuit breaker body 11. The voltage-dividing resistor 5 is electrically connected to the second terminal 13. This arrangement of the voltage-dividing resistor 5 fully utilizes the space below the circuit breaker 1 in the first mounting area 81, making the layout of the various components more reasonable and compact.

[0046] Optionally, in this embodiment, if Figures 1 to 3 As shown, the power distribution cabinet also includes a lightning rod 6, which is located in the first mounting area 81 and below the circuit breaker body 11. The lightning rod 6 and the voltage-dividing resistor 5 are arranged in a vertical direction, and the lightning rod 6 is electrically connected to the second terminal 13. The provision of the lightning rod 6 reduces the risk of lightning strikes to the power distribution cabinet and improves its operational safety. Furthermore, the layout of the lightning rod 6 fully utilizes the space below the circuit breaker 1 in the first mounting area 81, making the layout of the various components more reasonable and compact.

[0047] Optionally, in this embodiment, if Figures 1 to 3As shown, the power distribution cabinet further includes insulators 7, and insulators 7 are provided on both the first terminal 12 and the second terminal 13. The insulator 7 on the first terminal 12 plays an insulating and supporting role for the first terminal 12, and the insulator 7 on the second terminal 13 plays an insulating and supporting role for the second terminal 13. Optionally, in this embodiment, the insulator 7 on the first terminal 12 is installed on the first side wall 84 of the cabinet body 8, and the insulator 7 on the second terminal 13 is installed on the bottom wall 86 of the cabinet body 8. It should be noted that insulators 7 can also be provided at the first wiring part 32, the second wiring part 33 and other wiring positions for insulating support.

[0048] Embodiment 2

[0049] The power distribution cabinet provided in this embodiment is basically the same as that in Embodiment 1. The difference between the power distribution cabinet provided in this embodiment and that in Embodiment 1 is as follows: [[ID=�]]

[0050] As Figures 4 to 6 shown, in this embodiment, the two opposite side walls of the cabinet body 8 along the second horizontal direction (the front-back direction in the figure) are the front side wall and the rear side wall respectively. The circuit breaker 1 is installed on the first side wall 84, and the current transformer 3 and the contactor 4 are both installed on the rear side wall. The first horizontal direction and the second horizontal direction are perpendicular to each other. The above setting makes the top of the reactor 2 have a certain operating space, and this operating space is located in front of the current transformer 3 and the contactor 4. On the premise of ensuring the compact layout of each device, it is more convenient for the operator to perform corresponding wiring operations between the circuit breaker 1, the reactor 2, the current transformer 3 and the contactor 4 at the operating space on the front side of the cabinet body 8, making the power distribution cabinet have good processability.

[0051] It should be noted that in this embodiment, both the first wiring part 32 and the second wiring part 33 are located in front of the current transformer body 31, and the connecting part 42 is located in front of the contactor body 41, which is more convenient for the operator to perform corresponding connection operations on the first wiring part 32, the second wiring part 33 and the connecting part 42 on the front side of the cabinet body 8.

[0052] Obviously, the above embodiments of the present application are only examples for clearly explaining the present application, and are not limitations on the implementation manners of the present application. For those of ordinary skill in the art, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to list all the implementation manners here. Any modifications, equivalent replacements and improvements made within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. A power distribution cabinet, characterized in that, It includes a cabinet body (8), a circuit breaker (1), a reactor (2), a current transformer (3), and a contactor (4). The circuit breaker (1), the reactor (2), the current transformer (3), and the contactor (4) are all located inside the cabinet body (8). The circuit breaker (1) is electrically connected to the reactor (2), the reactor (2) is electrically connected to the current transformer (3), and the current transformer (3) is electrically connected to the contactor (4). A first installation area (81) and a second installation area (82) are provided inside the cabinet body (8). The circuit breaker (1) is located in the first installation area (81), and the reactor (2), the current transformer (3), and the contactor (4) are all located in the second installation area (82). And a maintenance gap (83) is formed between the first installation area (81) and the second installation area (82).

2. The power distribution cabinet according to claim 1, characterized in that, The reactor (2), the current transformer (3), and the contactor (4) are arranged in sequence from bottom to top in the second installation area (82).

3. The power distribution cabinet according to claim 2, characterized in that, The reactor (2) is installed on the bottom wall (86) of the cabinet body (8).

4. The power distribution cabinet according to claim 3, wherein, The first installation area (81) and the second installation area (82) are arranged opposite to each other along a first horizontal direction. The two side walls of the cabinet body (8) opposite to each other along the first horizontal direction are a first side wall (84) and a second side wall (85) respectively. The circuit breaker (1) is installed on the first side wall (84), and the current transformer (3) and the contactor (4) are both installed on the second side wall (85).

5. The power distribution cabinet according to claim 3, characterized in that, The first installation area (81) and the second installation area (82) are arranged opposite to each other along a first horizontal direction. The two side walls of the cabinet body (8) opposite to each other along the first horizontal direction are a first side wall (84) and a second side wall (85) respectively. The two side walls of the cabinet body (8) opposite to each other along a second horizontal direction are a front side wall and a rear side wall respectively. The circuit breaker (1) is installed on the first side wall (84), and the current transformer (3) and the contactor (4) are both installed on the rear side wall. The first horizontal direction and the second horizontal direction are perpendicular to each other.

6. The power distribution cabinet according to any one of claims 1 to 5, characterized in that, The circuit breaker (1) includes a circuit breaker body (11) and a first wiring terminal (12). The first wiring terminal (12) is arranged on one side of the circuit breaker body (11) facing the maintenance gap (83). The reactor (2) includes a reactor body (21) and a first connection terminal (22). The first connection terminal (22) is arranged on one side of the reactor body (21) facing the maintenance gap (83). The first wiring terminal (12) is electrically connected to the first connection terminal (22).

7. The power distribution cabinet according to claim 6, wherein The circuit breaker (1) further includes a second wiring terminal (13). The second wiring terminal (13) is arranged on the lower side of the circuit breaker body (11). The power distribution cabinet further includes a voltage-dividing resistor (5), the voltage-dividing resistor (5) is located in the first installation area (81) and on the lower side of the circuit breaker body (11), and the voltage-dividing resistor (5) is electrically connected to the second terminal (13).

8. The power distribution cabinet according to claim 7, characterized in that, The power distribution cabinet further includes a lightning rod (6), the lightning rod (6) is located in the first installation area (81) and on the lower side of the circuit breaker body (11), the lightning rod (6) and the voltage-dividing resistor (5) are arranged in the vertical direction, and the lightning rod (6) is electrically connected to the second terminal (13).

9. The power distribution cabinet according to claim 6, wherein, The circuit breaker (1) further includes a second terminal (13), and the second terminal (13) is arranged on the lower side of the circuit breaker body (11); The power distribution cabinet further includes insulators (7), and the insulators (7) are arranged on both the first terminal (12) and the second terminal (13).

10. The power distribution cabinet according to claim 6, characterized in that, The reactor body (21) further includes a second connection terminal (23) arranged on the reactor body (21), the current transformer (3) includes a current transformer body (31), a first wiring part (32) and a second wiring part (33), the first wiring part (32) and the second wiring part (33) are both arranged on the current transformer body (31), the contactor (4) includes a contactor body (41) and a connection part (42) arranged on the contactor body (41), the second connection terminal (23) is electrically connected to the first wiring part (32), and the second wiring part (33) is electrically connected to the connection part (42).

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