Switch cabinet

Abstract

The utility model discloses a switch cabinet, and belongs to the technical field of electrical equipment, and the switch cabinet comprises a cabinet body which is provided with an opening; the separator divides the interior of the cabinet body into a first cabin and a second cabin, the first cabin and the second cabin are arranged along a first direction, the first cabin comprises an installation chamber and a cable chamber, the installation chamber and the cable chamber are arranged along a second direction, and the second cabin comprises a wire outlet chamber; the circuit breaker is arranged in the mounting chamber, the circuit breaker and the isolation piece are arranged at an interval, and the circuit breaker is configured to achieve wire incoming through the cable chamber and wire outgoing through the cable chamber and the wire outgoing chamber; according to the invention, the circuit breaker is independently arranged in the installation chamber, and the flat cables of the circuit breaker are arranged along the height of the cabinet body, so that the space occupied by the cables in the transverse direction of the circuit breaker is reduced, and the space of one side, far away from the cable chamber, of the circuit breaker is fully released; and the peripheral area of the circuit breaker is further guaranteed, so that the operable space of the circuit breaker is increased.

Description

Technical Field

[0001] This application belongs to the field of electrical equipment technology, and specifically relates to a switch cabinet. Background Technology

[0002] Switchgear plays an important role in power systems, and is typically used for opening, closing, controlling and protecting electrical equipment.

[0003] Circuit breakers are a crucial component in switchgear, capable of closing, carrying, and interrupting current under normal circuit conditions, and also capable of closing, carrying, and interrupting current under abnormal circuit conditions within a specified time. Since circuit breakers operate at a higher frequency than other components in switchgear, increasing their operational capacity is a pressing issue in this field. Utility Model Content

[0004] Purpose of the utility model: The embodiments of this application provide a switch cabinet, which aims to solve the technical problem of how to increase the operable space of the circuit breaker.

[0005] Technical solution: The switchgear described in the embodiments of this application includes:

[0006] The cabinet has an opening;

[0007] The isolation component divides the interior of the cabinet into a first compartment and a second compartment, the first compartment and the second compartment being arranged along a first direction, the first compartment including an installation room and a cable room, the installation room and the cable room being arranged along a second direction, and the second compartment including an outgoing cable room;

[0008] A circuit breaker is installed in the installation chamber, the circuit breaker is spaced apart from the isolator, and the circuit breaker is configured to receive a line through the cable chamber and exit through the cable chamber and the outgoing line chamber.

[0009] In some embodiments, the switch cabinet further includes a contactor disposed in the second compartment, the second compartment having a first inner sidewall, the contactor being spaced apart from the first inner sidewall and forming the outgoing cable compartment.

[0010] In some embodiments, the first inner sidewall is disposed toward the opening, and the switch cabinet further includes an electrical box and secondary electrical equipment. The electrical box is disposed in the second compartment and located on the side of the contactor away from the outgoing line compartment. The electrical box has a receiving cavity and a box opening communicating with the receiving cavity. The secondary electrical equipment is disposed in the receiving cavity, and the box opening is disposed toward the opening.

[0011] In some embodiments, the switch cabinet further includes an electrical box and secondary electrical equipment. The electrical box is disposed in the second compartment and located on the side of the cabinet body near the opening. The electrical box has a receiving cavity and a box opening communicating with the receiving cavity. The secondary electrical equipment is disposed in the receiving cavity, and the box opening is disposed facing the opening.

[0012] In some embodiments, the electrical box is provided with wire-passing holes on both sides along the second direction, and the wire-passing holes communicate with the interior of the electrical box.

[0013] In some embodiments, the second compartment further includes an electrical room, the electrical box is disposed in the electrical room, and the switch cabinet further includes a plurality of baffles disposed on one or both sides of the electrical box along the second direction and connected to the cabinet body. The plurality of baffles and the electrical box are configured to seal the portion of the opening corresponding to the electrical room.

[0014] In some embodiments, the cable compartment is located below the installation compartment, the switch cabinet further includes a reactor, the reactor is located on the inner bottom wall of the second compartment, and the contactor is located above the reactor.

[0015] In some embodiments, the second compartment has a first inner wall and a second inner wall that are connected to each other, the first inner wall being disposed opposite to the opening and the second inner wall being disposed opposite to the spacer;

[0016] The switch cabinet also includes a blower and a first partition and a second partition disposed in the second compartment. The first partition is connected to the isolation member, and the second partition is connected to the first partition and the first inner sidewall. The first inner sidewall, the first partition, the second partition, the second inner sidewall, and the inner bottom wall of the second compartment form a heat dissipation chamber, and the reactor is disposed in the heat dissipation chamber.

[0017] The blower is located in the heat dissipation chamber, and the side wall of the cabinet is provided with an air outlet that communicates with the heat dissipation chamber.

[0018] In some embodiments, multiple air blowers are provided, and the multiple air blowers are respectively located on both sides of the reactor and connected to the inner bottom wall of the heat dissipation chamber.

[0019] In some embodiments, the switch cabinet further includes a current transformer, which is disposed in the cable compartment.

[0020] In this embodiment of the switchgear, the circuit breaker is separately installed in the installation chamber, ensuring sufficient space for the circuit breaker. Furthermore, the circuit breaker wiring is routed out from the cable compartment. Since the installation chamber and cable compartment are arranged along a second direction, the cables are laid out along the height of the cabinet. This avoids the cables occupying lateral space of the circuit breaker and fully releases space on the side of the circuit breaker away from the cable compartment. Simultaneously, the spacing between the circuit breaker and the isolating components further protects the area around the circuit breaker, thereby increasing the operable space for disassembly, wiring, and maintenance. The outgoing cable compartment leads out the switchgear's cables last, reducing cable accumulation in one area and improving the orderliness of cable routing. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a front view of the switch cabinet provided in an embodiment of this application;

[0023] Figure 2 A side view of the switch cabinet provided in an embodiment of this application;

[0024] Figure 3 A three-dimensional structural diagram of the switchgear provided in an embodiment of this application;

[0025] Figure 4 A schematic diagram showing the distribution of the electrical box and baffle provided in an embodiment of this application;

[0026] Figure 5 A schematic diagram of the structure of the first and second partitions provided in the embodiments of this application;

[0027] Figure 6 A schematic diagram showing the distribution of the reactor and blower components provided in an embodiment of this application;

[0028] Figure 7 A schematic diagram of a heat dissipation chamber provided in an embodiment of this application;

[0029] Reference numerals: 1. Cabinet; 10. Opening; 11. First compartment; 111. Installation room; 112. Cable compartment; 12. Second compartment; 121. Outlet compartment; 122. First inner wall; 123. Second inner wall; 124. Electrical room; 125. Heat dissipation room; 13. Air outlet; 14. Air inlet; 2. Isolation component; 21. Vertical beam; 22. Longitudinal beam; 3. Circuit breaker; 4. Electrical box; 41. Receiving cavity; 42. Cable passage hole; 5. Secondary electrical equipment; 6. Baffle; 7. Reactor; 8. Air blower; 101. First partition; 102. Second partition; 104. Current transformer; 105. Cabinet door; 106. Contactor. Detailed Implementation

[0030] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0031] In the description of this application, it should be understood that the terms "height," "thickness," "upper," "lower," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In the description of this application, "a plurality of" means two or more, and "at least one" can mean one, two, or more, unless otherwise expressly specified.

[0032] It should also be noted that in the accompanying drawings of the embodiments of this application, the arrow marked X represents the first direction X of the cabinet, the arrow marked Z represents the second direction Z of the cabinet, and the arrow marked Y represents the third direction Y of the cabinet. The first direction X, the second direction Z, and the third direction Y are introduced to more clearly illustrate the structure and relative positional relationship of each component in the switch cabinet. In practical applications, the first direction X, the second direction Z, and the third direction Y may change depending on the placement of the switch cabinet.

[0033] Please combine them together Figure 1 and Figure 2The switchgear of this embodiment includes a cabinet 1, an isolator 2, and a circuit breaker 3. The cabinet 1 has an opening 10 for disassembly, assembly, and routine maintenance of various components. The isolator 2 divides the interior of the cabinet 1 into a first compartment 11 and a second compartment 12. The first compartment 11 and the second compartment 12 are arranged along a first direction X and are both connected to the opening 10. The first direction X is the length direction of the cabinet 1. The first compartment 11 includes an installation chamber 111 and a cable chamber 112, which are arranged along a second direction Z. The second direction Z is the height direction of the cabinet 1. The second compartment 12 includes an outgoing cable chamber 121.

[0034] Circuit breaker 3 is installed in the installation chamber 111 and spaced apart from the isolator 2. Circuit breaker 3 is configured to receive cables through cable chamber 112 and receive cables through cable chamber 112 and outlet chamber 121. Here, receiving cable refers to the incoming cable entering the cable chamber 112 from outside the cabinet 1 and then connecting to the incoming copper busbar of circuit breaker 3. Outgoing cable refers to the outgoing copper busbar connected to circuit breaker 3 being led out through cable chamber 112 and finally exiting the cabinet 1 through outlet chamber 121. Here, outgoing cable does not simply mean that the outgoing copper busbar extends from cable chamber 112 to outlet chamber 121. It can also mean that it is connected to outlet chamber 121 through other components of the switch cabinet.

[0035] Cabinet 1 is divided into two compartments, allowing for spatial isolation of the components within the switch cabinet to facilitate the separation of strong and weak currents. Furthermore, with the components separated, and the circuit breaker 3 housed separately in installation compartment 111, the possibility of interference from locally clustered components is reduced. The incoming and outgoing lines of circuit breaker 3 both pass through cable compartment 112, which is arranged vertically with installation compartment 111. This arrangement ensures that the incoming and outgoing cables are also routed along the second direction Z. This spacing between circuit breaker 3 and isolator 2 frees up space around circuit breaker 3 while also maximizing the upper space of circuit breaker 3. This increases the operable space of circuit breaker 3, meeting the needs of frequent operation.

[0036] Please combine them together Figure 1 and Figure 2 In some embodiments, the switchgear also includes a contactor 106, which is disposed in a second compartment 12. The second compartment 12 has a first inner sidewall 122. The contactor 106 is spaced apart from the first inner sidewall 122, forming a cable outlet compartment 121. The contactor 106 controls the switching of the main circuit through a control circuit. The cable outlet compartment 121 is mainly used to install through-wall insulators and to lead the wiring out of the cabinet 1. Since the contactor 106 operates at a low frequency during daily operation and its position is basically fixed after assembly, the cable outlet compartment 121 is located on one side of the contactor 106 to reduce modifications to the wiring.

[0037] Please combine them together Figure 2 and Figure 3 In some embodiments, the first inner sidewall 122 is positioned facing the opening 10, i.e., the first inner sidewall 122 is directly opposite the opening 10. The switch cabinet also includes an electrical box 4 and secondary electrical equipment 5. The electrical box 4 is located in the second compartment 12 and on the side of the contactor 106 away from the outgoing line compartment 121. The electrical box 4 is connected to the cabinet body 1 and has a receiving cavity 41 and a box opening communicating with the receiving cavity 41, with the box opening facing the opening 10. The secondary electrical equipment 5 includes at least one of relay protection, measurement and control, metering, and other automatic devices, and is located in the receiving cavity 41. The electrical box 4, contactor 106, and outgoing line compartment 121 are arranged sequentially along a third direction Y, making full use of the space in the second compartment 12 in the third direction Y, where the third direction Y is the width direction of the cabinet body 1. The integration of the secondary electrical equipment 5 into the electrical box 4 reduces dispersion and improves space utilization. At the same time, the electrical box 4 isolates the secondary electrical equipment 5 from the external environment, reducing electrical interference to the secondary electrical equipment 5. The box opening is positioned facing the opening 10, making it convenient for staff to install, inspect, or observe from the side of the opening 10.

[0038] Please combine them together Figure 2 and Figure 3 In some embodiments, the switch cabinet further includes an electrical box 4 and secondary electrical equipment 5. The electrical box 4 is disposed in the second compartment 12 and located on the side of the cabinet 1 near the opening 10. The electrical box 4 has a receiving cavity 41 and a box opening communicating with the receiving cavity 41. The secondary electrical equipment 5 is disposed in the receiving cavity 41, with the box opening facing the opening 10. The electrical box 4 has a small overall volume and thickness, so the electrical box 4 can be disposed at any position in the second compartment 12 corresponding to the opening 10, as long as the electrical box 4 does not interfere with the components inside the second compartment 12.

[0039] Please combine them together Figure 2 and Figure 3 In some embodiments, the electrical box 4 is provided with wire-passing holes 42 on both sides along the second direction Z, and the wire-passing holes 42 are in communication with the interior of the electrical box 4. The cables connected to the secondary electrical equipment 5 can be led out from the top through the wire-passing holes 42, which provides convenience for wiring, maintenance and other operations.

[0040] Please combine them together Figure 3 and Figure 4In some embodiments, the second compartment 12 further includes an electrical room 124, which is connected to the opening 10. An electrical box 4 is disposed in the electrical room 124. In the second direction Z, the height of the electrical box 4 is smaller than the height of the electrical room 124. The switch cabinet also includes a plurality of baffles 6, which are disposed on one or both sides of the electrical box 4 along the second direction Z and connected to the cabinet body 1. The plurality of baffles 6 and the electrical box 4 are configured to seal the portion of the opening 10 corresponding to the electrical room 124, so as to reduce the possibility of parts falling into the high-voltage area inside the cabinet body 1 when disassembling or assembling the secondary compartment or secondary electrical equipment 5, thereby helping to improve safety performance.

[0041] Specifically, the electrical box 4 has gaps on both the top and bottom sides, and multiple baffles 6 are respectively set on both sides of the electrical box 4; or, the electrical box 4 is set on the top side or the top side of the electrical chamber 124, and the electrical box 4 has a gap on one side, and multiple baffles 6 are set on the side of the electrical box 4 with the gap.

[0042] Please combine them together Figure 4 and Figure 5 In some embodiments, the cable compartment 112 is located below the mounting compartment 111. The switchgear also includes a reactor 7, which is located on the inner bottom wall of the second compartment 12, and the contactor 106 is located above the reactor 7. The reactor 7 is heavy; supporting it on the inner bottom wall of the cabinet 1 lowers its center of gravity and improves the overall stability of the cabinet 1. Both the reactor 7 and the cable compartment 112 are located below their respective compartments, thus their positions are opposite each other. During wiring, the outgoing wire of the circuit breaker 3 will pass through the cable compartment 112 to the reactor 7, forming an L-shaped wiring path, which helps reduce winding and shortens the required cable length. The mounting compartment 111 is located above the cable compartment 112, allowing the height of the circuit breaker 3 to be as suitable as possible for personnel's height, facilitating direct operation of the circuit breaker 3 and saving time and effort.

[0043] Please combine them together Figure 1 , Figure 2 as well as Figures 5 to 7 In some embodiments, the second compartment 12 has a first inner wall 122 and a second inner wall 123 connected to each other. The first inner wall 122 and the second inner wall 123 are both arranged along the second direction Z and are arranged at an angle between them. The angle can be 85°-95°, preferably 90°. The first inner wall 122 is arranged opposite to the opening 10, and the second inner wall 123 is arranged opposite to the partition 2.

[0044] The switch cabinet also includes a first partition 101, a second partition 102, and a blower 8. Both the first partition 101 and the second partition 102 are located within the second compartment 12. The first partition 101 is connected to the isolation member 2. The second partition 102 connects the first partition 101 and the first inner sidewall 122. The first inner sidewall 122, the first partition 101, the second partition 102, the second inner sidewall 123, and the inner bottom wall of the second compartment 12 form a heat dissipation chamber 125. The reactor 7 and the blower 8 are both located within the heat dissipation chamber 125. The blower 8 can be a fan, a cross-flow fan, or other equipment capable of generating airflow. The side wall of the cabinet 1 has an air outlet 13 communicating with the interior of the heat dissipation chamber 125, and the interior of the cabinet 1 has an air inlet 14.

[0045] The heat dissipation chamber 125 isolates the reactor 7 from the internal space of the cabinet 1. At the same time, the air in the heat dissipation chamber 125 is drawn by the blower 8 to absorb the heat generated by the reactor 7 during operation and exhaust it through the air outlet 13. On the one hand, it cools down the reactor 7, and on the other hand, it reduces the possibility of the heat from the reactor 7 being transferred to the internal space of the cabinet 1 and interfering with the normal operating temperature of other components.

[0046] In this embodiment, the heat dissipation chamber 125 is located below the electrical chamber 124. The cabinet 1 has a crossbeam between the heat dissipation chamber 125 and the electrical chamber 124. The crossbeam can separate the heat dissipation chamber 125 and the electrical chamber 124 on the side of the opening 10. The electrical box 4 and the baffle 6 on its side are arranged above the crossbeam to seal the electrical chamber 124.

[0047] Please combine them together Figure 1 and Figure 7 In some embodiments, the switch cabinet includes multiple air blowers 8, which are located on both sides of the reactor 7 and connected to the inner bottom wall of the heat dissipation chamber 125. The air outlet 13 is disposed opposite to the isolation member 2. The air blower 8 on the side of the reactor 7 away from the air outlet 13 blows air upward. The airflow flows through the reactor 7, and after being blocked by the second partition 102, part of it flows downward, forming a swirling flow on that side, continuously absorbing the heat of the reactor 7. The air blower 8 on the side of the reactor 7 closer to the air outlet 13 blows air upward. The airflow flows through the reactor 7, and after being blocked by the second partition 102, it flows downward. The airflow on both sides of the reactor 7 is finally discharged from the air outlet 13, enhancing the heat dissipation effect on the reactor 7.

[0048] Please refer to Figure 1In some embodiments, the switchgear also includes a current transformer 104, which is disposed within the cable compartment 112. The current transformer 104 is positioned opposite the reactor 7, making full use of the lateral space of the cable compartment 112 and facilitating an integrated layout. Furthermore, considering the significant weight of the current transformer 104, placing it at the bottom of the cable compartment facilitates installation and shortens the wiring distance between it and the reactor 7. According to the aforementioned embodiments, the outgoing copper busbar of the circuit breaker 3 is connected to the incoming terminal of the current transformer 104. The current transformer 104 exits through the copper busbar and connects to the reactor 7. The reactor 7 is connected to the contactor 106, and the line is finally led out through the outgoing compartment 121. Thus, the outgoing line of the circuit breaker 3 is indirectly introduced into the outgoing compartment 121 through the current transformer 104, the reactor 7, and the contactor 106.

[0049] Please combine them together Figure 3 and Figure 7 In some embodiments, the switch cabinet further includes a cabinet door 105, which is connected to the cabinet body 1. Each of the installation chamber 111, cable chamber 112, heat dissipation chamber 125, and electrical chamber 124 corresponds to a cabinet door 105. The isolation component 2 includes a vertical beam 21 and a longitudinal beam 22. The vertical beam 21 is located at the middle of the cabinet body 1 along the first direction X and is connected to the cabinet body 1. The longitudinal beam 22 is connected to the vertical beam 21 and is arranged along the third direction Y.

[0050] The switchgear provided in the embodiments of this application has been described in detail above, and specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the technical solutions and core ideas of this application. Those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. Switchgear cabinet, characterized in that The switch cabinet comprises: a cabinet body (1) having an opening (10); a partition (2) separating the cabinet body (1) into a first cabin (11) and a second cabin (12), the first cabin (11) and the second cabin (12) being arranged along a first direction, the first cabin (11) comprising a mounting chamber (111) and a cable chamber (112), the mounting chamber (111) and the cable chamber (112) being arranged along a second direction, the second cabin (12) comprising a wire outlet chamber (121); a circuit breaker (3) arranged in the mounting chamber (111), the circuit breaker (3) being arranged apart from the partition (2), the circuit breaker (3) being configured to be wired through the cable chamber (112) and to be wired out through the cable chamber (112) and the wire outlet chamber (121).

2. Switchgear according to claim 1, characterized in that The switch cabinet further comprises a contactor (106) arranged in the second cabin (12), the second cabin (12) having a first inner side wall (122), the contactor (106) being arranged apart from the first inner side wall (122) and forming the wire outlet chamber (121).

3. Switchgear according to claim 2, characterized in that The first inner side wall (122) is arranged towards the opening (10), the switch cabinet further comprising an electrical box (4) and secondary electrical equipment (5), the electrical box (4) being arranged in the second cabin (12) and located on a side of the contactor (106) away from the wire outlet chamber (121), the electrical box (4) having a receiving cavity (41) and a box opening communicating with the receiving cavity (41), the secondary electrical equipment (5) being arranged in the receiving cavity (41), the box opening being arranged towards the opening (10).

4. Switchgear according to claim 1, characterized in that The switch cabinet further comprises an electrical box (4) and secondary electrical equipment (5), the electrical box (4) being arranged in the second cabin (12) and located on a side of the cabinet body (1) close to the opening (10), the electrical box (4) having a receiving cavity (41) and a box opening communicating with the receiving cavity (41), the secondary electrical equipment (5) being arranged in the receiving cavity (41), the box opening being arranged towards the opening (10).

5. Switchgear cabinet according to claim 3 or 4, characterized in that The electrical box (4) is provided with a wire passing hole (42) on both sides along the second direction, the wire passing hole (42) communicating with the inside of the electrical box (4).

6. Switchgear according to claim 3 or 4, characterized in that The second cabin (12) further comprises an electrical chamber (124), the electrical box (4) being arranged in the electrical chamber (124), the switch cabinet further comprising a plurality of baffles (6), the plurality of baffles (6) being arranged on one side or both sides of the electrical box (4) along the second direction and connected with the cabinet body (1), the plurality of baffles (6) and the electrical box (4) being configured to cover the part of the opening (10) corresponding to the electrical chamber (124).

7. Switchboard according to claim 2, characterized in that The cable chamber (112) is arranged below the mounting chamber (111), the switch cabinet further comprising a reactor (7) arranged on an inner bottom wall of the second cabin (12), the contactor (106) being arranged above the reactor (7).

8. Switchgear according to claim 7, characterized in that The second cabin (12) has a first inner side wall (122) and a second inner side wall (123) connected with each other, the first inner side wall (122) is arranged opposite to the opening (10), and the second inner side wall (123) is arranged opposite to the isolation piece (2); The switch cabinet further comprises a blowing piece (8) and a first partition plate (101) and a second partition plate (102) arranged in the second cabin (12), the first partition plate (101) is connected with the isolation piece (2), the second partition plate (102) is connected between the first partition plate (101) and the first inner side wall (122), the first inner side wall (122), the first partition plate (101), the second partition plate (102), the second inner side wall (123) and an inner bottom wall of the second cabin (12) form a heat dissipation chamber (125), and the reactor (7) is arranged in the heat dissipation chamber (125). The blowing piece (8) is arranged in the heat dissipation chamber (125), and a side wall of the cabinet body (1) is provided with an air outlet (13) in communication with the heat dissipation chamber (125).

9. Switchgear according to claim 8, characterized in that The blowing piece (8) is provided in plurality, and the plurality of blowing pieces (8) are respectively located on both sides of the reactor (7) and are connected to the inner bottom wall of the heat dissipation chamber (125).

10. The switchgear of claim 1, wherein The switch cabinet further comprises a current transformer (104), and the current transformer (104) is arranged in the cable chamber (112). The switch cabinet further comprises a current transformer (104), and the current transformer (104) is arranged in the cable chamber (112).

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