CN217444841U - Switch cabinet - Google Patents
Switch cabinet Download PDFInfo
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- CN217444841U CN217444841U CN202221532372.5U CN202221532372U CN217444841U CN 217444841 U CN217444841 U CN 217444841U CN 202221532372 U CN202221532372 U CN 202221532372U CN 217444841 U CN217444841 U CN 217444841U
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- circuit breaker
- switch cabinet
- ground wire
- fan
- room
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Abstract
The utility model discloses a switch cabinet, relate to the switch cabinet field, set up a plurality of ground wire connection structures on the cable chamber in the switch cabinet body, a plurality of said ground wire connection structures all can be connected with the control element that corresponds the needs and connects the ground wire, electrical components' earthing terminal, therefore, can connect the ground wire connected with ground on any one of them ground wire connection structure as required, namely the user can be according to the winding displacement needs, select corresponding ground wire switch, make the connection convenient, the winding displacement is neat, in addition, this application is equipped with at least one said ground wire connection structure on the cable chamber is close to one side of said circuit breaker chamber and is equipped with at least one said ground wire connection structure on the cable chamber is close to inlet wire channel one side; satisfy circuit breaker side ground connection and inlet wire side ground connection demand, the ground wire does not influence the setting of installing electric components such as current transformer in cable chamber inside moreover.
Description
Technical Field
The utility model relates to a cubical switchboard field, in particular to cubical switchboard.
Background
In the present switch cabinet, the ground wire wiring can only be connected to the ground port of the circuit breaker side, and the wiring connection in the switch cabinet is inconvenient.
SUMMERY OF THE UTILITY MODEL
In view of the foregoing prior art, an object of the present invention is to provide a switch cabinet, which can only be grounded at the side of the circuit breaker.
In order to achieve the purpose, the utility model adopts the following technical proposal:
a switch cabinet comprises a switch cabinet body, wherein a partition plate is fixed inside the switch cabinet body and divides the inside of the switch cabinet body into at least a breaker chamber and a cable chamber; more than two ground wire connecting structures used for being connected with a ground wire are distributed in the cable chamber;
the side of the cable chamber, which is far away from the breaker chamber, is provided with a wire inlet channel, and the side of the cable chamber, which is close to the breaker chamber, is provided with at least one ground wire connecting structure; and at least one ground wire connecting structure is arranged on one side of the cable chamber close to the wire inlet channel.
In some embodiments, a conductor is connected between the ground connection structure in the cable compartment on the side close to the incoming line channel and the ground connection structure in the side close to the breaker compartment.
In some embodiments, the ground connection structure comprises a ground switch.
In some embodiments, at least one of the switch cabinet body and the partition plate is provided with a cooling structure capable of cooling the interior of the switch cabinet body.
In some embodiments, the cooling structure is arranged on the top surface of the switch cabinet body; the cooling structure arranged on the top surface of the switch cabinet body comprises a first fan;
the side face of the lower end of the cable chamber is provided with the cooling structure; the cooling structure arranged on the side face of the lower end of the cable chamber comprises a second fan;
the lower end of the circuit breaker chamber is provided with the cooling structure; the cooling structure arranged at the lower end of the breaker chamber comprises a third fan.
In some embodiments, the first fan is detachably connected to the top surface of the switch cabinet body;
the second fan is arranged on one side of the cable chamber far away from the circuit breaker chamber and is detachably connected with the switch cabinet body;
the third fan is detachably connected with the partition plate at the lower end of the breaker chamber.
In some embodiments, a current transformer is fixed at one side of the cable chamber close to the incoming line channel, and a circuit breaker is fixed in the circuit breaker chamber; the utility model discloses a circuit breaker, including cubical switchboard body, first fan, second fan, third fan, current transformer, first fan is established the outside of cubical switchboard body, the second fan is established the below of current transformer, the third fan is established the below of circuit breaker, just the second fan with between the current transformer the third fan with all be equipped with certain clearance between the circuit breaker.
In some embodiments, a bent plate is fixed inside the cable chamber, and the bent plate divides the upper part of the cable chamber into a bus chamber;
the wire inlet channel is formed between the bent plate and the side wall of the switch cabinet body, which is far away from one side of the circuit breaker;
a current transformer is fixed on one side of the cable chamber close to the wire inlet channel, and the current transformer is arranged on the outer side of the bus chamber;
a circuit breaker is fixedly arranged in the circuit breaker chamber and comprises a static contact box, and the static contact box is arranged on one side, close to the circuit breaker chamber, of the cable chamber;
the inside many copper bars that are provided with of bus-bar room, many the copper bar all connects stationary contact box, current transformer, the copper bar is kept away from bus-bar room one end is passed or is arranged in the inlet wire passageway.
In some embodiments, a distance between each of the copper bars and the ground wire connection structure is greater than or equal to 125 mm.
In some embodiments, the copper bars are 3; 3 copper bars are arranged in parallel along the thickness direction of the switch cabinet body; the static contact boxes are at least two, at least one static contact box is an inlet end static contact box of the circuit breaker, and at least one static contact box is an outlet end static contact box of the circuit breaker;
every the copper bar all includes that one end is fixed the indoor portion of generating line other end is connected last branch copper bar, the one end connection on the entrance point stationary contact box of circuit breaker the other end is connected on the exit end stationary contact box of circuit breaker the well branch copper bar and the one end connection of dividing of current transformer's the end of intaking pass or arrange in current transformer's the end of generating electricity the ejecting copper bar of inlet wire passageway.
Has the advantages that: this application sets up a plurality of ground wire connection structure on this internal cable chamber of cubical switchboard, and is a plurality of ground wire connection structure all can be connected with the control element who corresponds needs to connect the ground wire, electrical components's earthing terminal, consequently, can be as required with the ground wire connection of being connected on arbitrary ground wire connection structure wherein, even the user can select corresponding ground wire switch according to the winding displacement needs for it is convenient to connect, the winding displacement is neat.
In addition, the ground wire connecting structure is arranged on one side, close to the breaker chamber, of the cable chamber, and the ground wire connecting structure is arranged on one side, close to the wire inlet channel, of the cable chamber; satisfy circuit breaker side ground connection and inlet wire side ground demand, the ground wire does not influence the setting of installing at the inside electric components such as current transformer of cable chamber moreover:
drawings
Fig. 1 is a schematic front view of a switchgear.
Fig. 2 is an enlarged partial schematic view at a of fig. 1.
Fig. 3 is a perspective view of the switchgear cabinet shown in fig. 1.
Fig. 4 is a schematic diagram of a grounding wire of the switchgear shown in fig. 1.
Fig. 5 is a schematic front view of the second switchgear.
Fig. 6 is a perspective view of the switchgear shown in fig. 5.
Fig. 7 is a schematic diagram of a grounding wire of the switchgear shown in fig. 5.
Description of the main element symbols: 100-switch cabinet body, 110-partition board, 111-breaker chamber, 112-cable chamber, 120-bent plate, 121-bus chamber, 122-incoming line channel, 200-ground wire connecting structure, 300-lead, 410-first fan, 420-second fan, 430-third fan, 500-static contact box, 600-current transformer, 700-copper bar, 710-upper branch copper bar, 720-middle branch copper bar and 730-ejecting copper bar.
Detailed Description
The utility model provides a switch cabinet, for making the utility model discloses a purpose, technical scheme and effect are clearer, make clear and definite, and it is right that the following refers to the attached drawing and the embodiment of lifting the utility model discloses further detailed description. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the scope of the invention.
Referring to fig. 1, 3, 5 and 6, a switchgear includes a switchgear body 100, a partition 110 is fixed inside the switchgear body 100, and the partition 110 divides the inside of the switchgear body 100 into at least a breaker chamber 111 and a cable chamber 112. The breaker chamber 111 is internally provided with a breaker (not shown in the figure) and the like, and the cable chamber 112 is internally provided with a current transformer 600, a ground wire connection structure 200 and the like. The partition board 110 is arranged inside the switch cabinet body 100, and the partition board 110 can support the switch cabinet body 100, so that the strength of the switch cabinet body 100 is improved, and the deformation of the switch cabinet body 100 is avoided; and the partition 110 divides the interior of the switch cabinet body 100 into at least a breaker chamber 111 and a cable chamber 112, so that protection and control elements inside the switch cabinet body 100 can be distributed at corresponding positions in order and are convenient for workers to distinguish.
Referring to fig. 1 to 4, the switch cabinet is used as a power system to open, close, control and protect electric equipment in the processes of power generation, power transmission, power distribution and electric energy conversion, and needs to be connected with corresponding wires. The utility model provides a cubical switchboard is in cable chamber 112 internal distribution has the ground wire connection structure 200 that is used for being connected with the ground wire more than two, more than two ground wire connection structure 200 all can be connected with the earthing terminal that corresponds the electric elements such as current transformer 600, the circuit breaker that need connect the ground wire cable chamber 112 is kept away from circuit breaker room 111 one side and is equipped with inlet wire channel 122, consequently, in use, can be as required with the ground wire connection of being connected on arbitrary ground wire connection structure 200 wherein, even the user can select corresponding ground wire switch according to the winding displacement needs for connect convenient, neat.
Among the plurality of ground connection structures 200 provided in the present application, at least the following ground connection structures 200 are included: at least one ground wire connecting structure 200 is arranged on one side of the cable chamber 112 close to the breaker chamber 111; at least one of the ground connection structures 200 is provided on a side of the cable chamber 112 adjacent to the wire inlet passage 122.
The ground wire connecting structures 200 are arranged on one side, close to the breaker chamber 111, of the cable chamber 112, and the ground wire connecting structures 200 are arranged on one side, close to the wire inlet channel 122, of the cable chamber 112, namely, the ground wire connecting structures 200 are arranged on two sides of the cable chamber 112, so that a user can connect the ground wires to the corresponding ground wire connecting structures 200 according to actual needs, or all the ground wire connecting structures 200 are connected with the ground wires, and the switch cabinet meets the requirements of more ground wires. Compare with the present scheme that only earths at circuit breaker side, this application has increased ground wire connection structure 200's setting for can select corresponding ground wire connection structure 200 as required when the earth connection, and then make more convenient when the wiring.
When the ground wire is connected to the ground wire connection structure 200 of the cable chamber 112 near the breaker chamber 111 and/or the ground wire connection structure 200 of the cable chamber 112 near the wire inlet channel 122, the ground wire can be wired along the sidewall of the cable chamber 112, so that the ground wire does not affect the arrangement of electrical components such as the current transformer 600 installed inside the cable chamber 112.
The ground wire is usually connected to the ground, the housing or a wire with a reference potential of zero, and is used for preventing electric shock accidents caused by electrification of the internal insulation damage housing of the electric appliance, and the wire is usually installed in the junction box, so that the flat cable is neat, therefore, the ground wire is connected with the junction box, namely, the junction box is fixed in the switch cabinet body 100, and the ground wire connecting structure 200 is connected with the junction box through wires. In practical applications, the grounding terminal is also connected to the grounding terminal of electrical components such as the current transformer 600 and the circuit breaker of the switch cabinet body 100.
In this application drawing, cable chamber 112 establishes the left side at cubical switchboard body 100 circuit breaker room 111 establishes the right side at cubical switchboard body 100, and inlet wire passageway 122 establishes the left side at cable chamber 112, and the inside electric wire of connecting switch cabinet is connected to cable chamber 112 right side after inlet wire passageway 122, and then is connected with electrical components such as current transformer 600 and the circuit breaker that distribute in the cubical switchboard for electric wire rational distribution.
In some embodiments, in order to facilitate the grounding of two ground wire connection structures 200 at the same time, a wire 300 is connected between the ground wire connection structure 200 near the side of the wire inlet passage 122 and the ground wire connection structure 200 near the side of the breaker chamber 111 in the cable chamber 112, so that the ground wire is connected to one of the ground wire connection structures 200. Through the setting of ground wire, when the inside electric leakage that takes place of cubical switchboard, the electric current passes through the ground wire and arranges to the ground in, guarantees that the electric current is zero, guarantees staff's personal safety.
Specifically, the ground wire connection structure 200 of the present application may be, but is not limited to, a ground switch, for example, the ground wire connection structure 200 may also be used for a flat cable connector of a connection wire, that is, a ground wire terminal of an electrical component such as the current transformer 600, a circuit breaker, etc. is connected to a ground wire through the flat cable connector.
The ground switch is a mechanical grounding device which releases static electricity of the maintained equipment and a loop and ensures personal safety of maintenance personnel during power failure maintenance. The current of certain time can be endured under the abnormal condition, but the load current is not passed through under the normal condition, and it is a part of the isolating switch usually, and the electrical components such as the circuit breaker in the switch cabinet, the current transformer 600 and the like are connected through the ground switch, and the knife switch of the ground switch can be opened and closed according to the requirement in use, so that the ground wire is switched on and is convenient to use.
Referring to fig. 1, 3, 5 and 6, in use, electrical components inside the switch cabinet generate heat, which causes the temperature inside the switch cabinet body 100 to rise, and when the temperature is too high, fire is easily generated. Therefore, at least one of the switch cabinet body 100 and the partition plate 110 is provided with a cooling structure capable of cooling the interior of the switch cabinet body 100, so that heat generated during the operation of electrical components can be discharged in time, and the fire caused by overhigh temperature in the switch cabinet can be avoided.
In some embodiments, the cooling structure is disposed on the top surface of the switch cabinet body 100; the cooling structure arranged on the top surface of the switch cabinet body comprises a first fan 410; the side surface of the lower end of the cable chamber 112 is provided with the cooling structure; the cooling structure disposed at the lower end side of the cable chamber 112 includes a second fan 420; the lower end of the breaker chamber 111 is provided with the cooling structure; the cooling structure provided at the lower end of the breaker chamber 111 includes a third fan 430.
The cooling structure comprises a first fan 410, a second fan 420 and a third fan 430 which are arranged at different positions, so that high-temperature air inside the switch cabinet can be quickly discharged, and the cooling effect is accelerated.
In the detailed embodiment of this application, select the fan (i.e. first fan 410, second fan 420 and third fan 430) as cooling structure, the fan during operation can drive the air and flow for discharge the inside high-temperature gas of cubical switchboard outside the cubical switchboard, because need maintain new atmospheric pressure balanced, consequently inside the lower air of cubical switchboard outside temperature can get into the cubical switchboard again, form gaseous extrinsic cycle, and walk away the inside heat of cubical switchboard in the circulation process, the inside accident of catching fire because of the high temperature of cubical switchboard has been avoided.
Wherein, because air density's reason, high-temperature gas can rise, and this application is equipped with two at cubical switchboard body 100 top surface first fan 410 improves the carminative effect of cubical switchboard body 100 top surface, can accelerate the cooling effect. And the inside baffle 110 isotructures that exist of cubical switchboard body 100 consequently still sets up one at cable chamber 112 lower extreme left surface second fan 420 is equipped with one on the baffle 110 of circuit breaker room 111 lower extreme side third fan 430 has compromise cubical switchboard inner structure and exhaust position for the inside high temperature air of cubical switchboard discharges fast, has accelerated the cooling effect.
In order to facilitate replacement of the first fan 410, the second fan 420 and the third fan 430, the first fan 410 is detachably connected to the top surface of the switch cabinet body 100; the second fan 420 is arranged on one side of the cable chamber 112 far away from the breaker chamber 111, and the second fan 420 is detachably connected with the switch cabinet body 100; the third fan 430 is detachably coupled to the partition 110 at the lower end of the breaker chamber 111.
Specifically, the first fan 410 is connected to the switch cabinet body 100 by screws, the second fan 420 is connected to the switch cabinet body 100 by screws, and the third fan 430 is connected to the partition 110 at the lower end of the breaker chamber 111 by screws; the fixing of the first fan 410, the second fan 420, and the third fan 430 is achieved. When the fans need to be cleaned or maintained, the screws corresponding to the first fan 410, the second fan 420 and the third fan 430 are removed, and the corresponding fans can be removed.
In another embodiment, the first fan 410 is connected to the switch cabinet body 100 by a snap; the second fan 420 is connected with the switch cabinet body 100 through a buckle; the third blower 430 is connected to the partition 110 at the lower end of the breaker chamber 111 by a snap. The buckle connection has the greatest characteristic of convenient installation and disassembly and can be realized without tool disassembly, so that the buckle is adopted as a detachable connection structure, and the first fan 410, the second fan 420 and the third fan 430 are convenient to disassemble and assemble.
Specifically, the cable chamber is being close to inlet wire passageway one side is fixed with current transformer the breaker indoor location has the circuit breaker. First fan 410 establishes in the cubical switchboard body 100 outside, second fan 420 establishes in current transformer 600's below, and third fan 430 establishes in the below of circuit breaker, just between second fan 420 and current transformer 600 third fan 430 all is equipped with certain clearance between the circuit breaker for make things convenient for the dismouting of fan, and can dismantle the change with electricity. In other words, when the fan is damaged, the fan can be directly detached for replacement without turning off the power supply of the electrical element and only by turning off the power supply of the fan, so that the fan replacement is more convenient.
In some embodiments, a bent plate 120 is fixed inside the cable chamber 112, and the bent plate 120 divides the upper part of the cable chamber 112 into a bus bar chamber 121; the wire inlet channel 122 is formed between the bent plate 120 and the side wall of the switch cabinet body 100 far away from the circuit breaker, a current transformer 600 is fixed on one side of the cable chamber 112 close to the wire inlet channel 122, and the current transformer 600 is arranged outside the bus chamber 121; the circuit breaker is fixed with the circuit breaker in the circuit breaker room 111, the circuit breaker includes stationary contact box 500, stationary contact box 500 is arranged in cable chamber 112 and is close to circuit breaker room 111 one side. The bent plate 120 divides the cable chamber 112 into two parts, one part is used for connecting external wires, namely the bus bar chamber 121, and the other part is used for installing structures such as cable arrangement and the current transformer 600.
Inside being provided with many copper bars 700 of bus-bar room 121, many copper bar 700 all connects stationary contact box 500, current transformer 600, copper bar 700 is kept away from bus-bar room 121 one end is passed or is arranged in inlet wire passageway 122. The copper bar 700 connected with the external electric wire is connected with the power distribution cabinet arranged on one side of the switch cabinet after bypassing the bent plate 120 from the bus bar room 121 and being sequentially connected with the circuit breaker and the current transformer 600, and the switch cabinet and the power distribution cabinet are combined for use to control the circuit.
Wherein, when the winding displacement, copper bar 700 need bypass bent plate 120, consequently, copper bar 700 and outside wire connection one end and copper bar 700 are separated by bent plate 120 with the one end that the switch board is connected, avoid copper bar 700 both ends direct contact, guarantee the safety of circuit.
Referring to fig. 2, in some embodiments, a distance between each of the copper bars 700 and the ground connection structure 200 is greater than or equal to 125mm, that is, a distance between each of the copper bars 700 and a conducting position connected to a ground is greater than or equal to 125mm, so that the switch cabinet may be applied to a circuit with a current of less than 4200A, for example, a circuit with a current value of 4000A, 3500A, 2500A, or 1600A.
In some embodiments, according to the selection of the current value flowing in the circuit and the current-carrying capacity of the barrel conductor, when the current value of 4000A or more needs to be applied, more than 3 copper bars 700 need to be arranged. In an embodiment of the present application, there are 3 copper bars 700, 3 copper bars 700 are arranged in parallel along the thickness direction of the switch cabinet body 100. In other words, in the present embodiment, by providing 3 copper bars 700, the switch cabinet is suitable for being applied to a circuit with a current of less than 4200A.
Referring to fig. 1 and 5, at least two static contact boxes 500 are provided, at least one static contact box 500 is an inlet end static contact box 500 of the circuit breaker, and at least one static contact box 500 is an outlet end static contact box 500 of the circuit breaker; every copper bar 700 all includes that one end is fixed the inside other end of bus-bar room 121 is connected last branch copper bar 710 copper bar 700, the one end on the entrance point static contact box 500 of circuit breaker are connected the other end is connected on the exit end static contact box 500 of circuit breaker the well branch copper bar 720 copper bar 700 and the one end of the well branch of current transformer 600's the end of intaking are connected the end of generating electricity of current transformer 600 other end passes or arranges in ejecting copper bar 730 copper bar 700 of inlet wire way 122. Every copper bar 700 falls into 3 sections, and the segmentation is simple, and the quantity is few, economical and practical.
Referring to fig. 1 to 4, in the above description, since the length dimension of the current transformer 600 is greater than the width dimension, the width dimension of the current transformer 600 is close to the height dimension, and therefore, the current transformer 600 is disposed in the transverse direction. Compare with current vertical installation current transformer 600's scheme, in vertical installation current transformer 600's the scheme, in order to guarantee to have the distance that accords with the winding displacement standard between copper bar 700 and the bent plate 120, current transformer 600 one end need be arranged in inlet wire passageway 122, this application when current transformer 600 transversely sets up, can with current transformer 600 installs the below of bent plate 120, just current transformer 600 is close to one side of inlet wire passageway 122 forms a space, consequently, foretell establish cable chamber 112 is close to inlet wire passageway 122 room one side ground wire connection structure 200 can set up in the space for the inside space of rational distribution cubical switchboard body 100 has sufficient space installation a plurality of ground wire connection structure 200.
Referring to fig. 5 to 7, in some embodiments, in an application environment where ground connection is convenient, the ground connection structure 200 may be disposed only on a side of the cable chamber 112 close to the breaker chamber 111, so that the number of the ground connection structures 200 may be reduced, and a larger space for installing the current transformer 600 and the flat cable may be provided inside the cable chamber 112.
In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "top", "bottom", "inner", "outer", "length", "width" and "height" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other suitable relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
It should be understood that equivalent substitutions or changes can be made by those skilled in the art according to the technical solution of the present invention and the inventive concept thereof, and all such changes or substitutions should be considered as the protection scope of the present invention.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221532372.5U CN217444841U (en) | 2022-06-17 | 2022-06-17 | Switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221532372.5U CN217444841U (en) | 2022-06-17 | 2022-06-17 | Switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217444841U true CN217444841U (en) | 2022-09-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221532372.5U Active CN217444841U (en) | 2022-06-17 | 2022-06-17 | Switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217444841U (en) |
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2022
- 2022-06-17 CN CN202221532372.5U patent/CN217444841U/en active Active
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