CN216872489U - Intelligent low-voltage distribution line load transfer box - Google Patents

Abstract

The utility model discloses an intelligent low-voltage distribution line load transfer box which comprises a box body, a box door, a hinge and box internal accessories, wherein the box door is arranged on the box body; the box door is hinged with the front and/or the back of the box body through a hinge; the fittings in the box comprise at least one travel switch and at least one light-emitting device, and the travel switches are electrically connected with the light-emitting devices in a one-to-one correspondence manner; the travel switch is arranged at the hinge; when the box door is in an open state, the travel switch triggers the light-emitting device to light up, and when the box door is in a closed state, the travel switch triggers the light-emitting device to close; the utility model can automatically turn on and off the illumination by the door opening and closing actions, thereby fundamentally solving the problem of insufficient light for emergency repair at night.

Description

Intelligent low-voltage distribution line load transfer box

Technical Field

The utility model relates to the technical field of low-voltage power distribution rush repair, in particular to an intelligent low-voltage distribution line transfer box.

Background

The low-voltage distribution network has a complex structure and wide distribution, and has more power failure due to fault or planned reconstruction. The power failure brings great troubles to the rest, entertainment, work and study of the user.

However, the existing temporary power connection device has great defects and cannot meet the field use requirements. The traditional temporary power connection uses a generator as a power supply to disconnect a fault (reconstruction) section and temporarily connect a non-fault (reconstruction) section. When the on-site light is poor, particularly, the emergency repair light at night is dim, and the phase sequence is easy to be connected in a wrong way. The on-site situation is complicated, the chaotic switch is opened, and the switch is closed, the manual operation is needed in the equipment, and personal safety risks can be generated if short circuit at a load end or insulation damage of the equipment occurs.

Therefore, how to provide an intelligent low-voltage distribution line load transfer box to provide sufficient light and ensure the safety of workers in the process of emergency repair at night is a problem that needs to be solved urgently by technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

In view of the above, the utility model provides an intelligent low-voltage distribution line load transfer box, which automatically turns on and off illumination through door opening and closing actions, can realize starting or stopping of equipment in a remote control mode, does not need human body to contact the equipment, and ensures the safety of workers.

In order to achieve the purpose, the utility model adopts the following technical scheme:

an intelligent low-voltage distribution line load transfer box comprises a box body, a box door, a hinge and box internal accessories; the front and/or the back of the box body is provided with a box door; the box door is connected with the box body through a hinge; the fittings in the box comprise at least one travel switch and at least one light-emitting device, the travel switches are connected with the light-emitting devices in a one-to-one correspondence mode, and the travel switches are arranged at the hinges.

Furthermore, the accessories in the box also comprise a leakage switch, a disconnecting link switch, a remote control switch and a remote control receiving device; wherein, the remote control receiving device comprises terminals KM13, KM14, KM15, KM16, KM17, KM18, KM19 and KM 21;

KM15 and KM19 in the remote control receiving device are respectively connected with a control terminal 3 of an electric leakage switch 1QF and an electric leakage switch 2QF, KM16 and KM18 are respectively connected with a control terminal 4 of the electric leakage switch 1QF and the electric leakage switch 2QF, and KM17 and KM21 are respectively correspondingly connected with a control terminal 5 of the electric leakage switch 1QF and the electric leakage switch 2 QF; the travel switch K1 is connected with a terminal 1 of the remote control switch, the travel switch K2 is connected with a terminal 2 of the remote control switch, and the KM13 and the KM14 are respectively connected with terminals 3 and 4 of the remote control switch. The travel switch K1 is connected to a terminal 31 of the light-emitting device, and the knife switch QFS is connected to another terminal 32 of the light-emitting device.

Furthermore, the accessories in the box also comprise a switch QF, current transformers LHa-C, LHa 1-C1, circuit breakers QF1, QF2, current buses L11-13, an intelligent compensating capacitor C1 and an intelligent capacitor C2;

the switch QF is connected with the current transformers LHa-C and LHa 1-C1 in series, the current transformers LHa 1-C1 are connected with L11-13 current buses, the L11-13 current buses are respectively connected with the circuit breakers QF1 and QF2, and are respectively connected into the intelligent compensation capacitor C1 and the intelligent capacitor C2 through the circuit breakers QF1 and QF 2; the L11-13 current bus is connected with one end of the leakage switches 1QF and 2 QF; and the other ends of the leakage switches 1QF and 2QF are connected with a load.

Furthermore, the fittings in the box also comprise a surge protector, one end of the surge protector is connected with the L11-13 current bus, and the other end of the surge protector is connected with the shell of the box body and grounded.

Furthermore, the box interior accessory also comprises an electric measuring instrument, fuses RU3, RU2, RU1, voltage buses L1, L2, L3 and N, wherein the electric measuring instrument is connected with the current transformer in a specific connection mode that:

no. 2, No. 3 and No. 4 terminals of the electric measuring instrument are correspondingly connected with one ends of the fuses RU3, RU2 and RU1 respectively; the other ends of the fuses RU3, RU2 and RU1 are correspondingly connected with the voltage buses L3, L2 and L1 respectively; the terminals No. 1 and No. 32 of the electric measuring instrument are connected in parallel and then are connected with the voltage bus N; the terminals No. 4 and No. 31 of the electric measuring instrument are connected in parallel and then are connected with the L1 of the voltage bus; the No. 6, No. 8 and No. 10 terminals of the electric measuring instrument are connected in parallel and then are connected with the secondary terminals of the current transformer LHa1, the current transformer LHb1 and the current transformer LHc1 and are merged into the grounding N411; the terminals No. 9, No. 7 and No. 5 of the electric measuring instrument are respectively connected with the secondary terminals A411, B411 and C411 of the current transformer LHa1, the current transformer LHb1 and the current transformer LHc1, and the terminals No. 11 to No. 18 of the electric measuring instrument are used for being connected with a GPRS module and sending telemetering signals.

Furthermore, the fittings in the box also comprise a three-phase four-wire junction box, and terminals No. 2, No. 6 and No. 10 of the three-phase four-wire junction box are correspondingly connected with terminals S1 of current transformers LHa, LHb and LHc respectively; and S2 terminals of the LHa, the LHb and the LHc are respectively connected with No. 3, No. 7 and No. 11 terminals of the three-phase four-wire junction box correspondingly and are simultaneously grounded.

Further, the inside fitting further includes a dehumidifying device for removing moisture and condensation gas inside the case.

Furthermore, the fittings in the box also comprise a plurality of insulators, and the insulators are arranged at a live wire inlet and a zero line inlet in the box body.

Further, handles are arranged on the left side and the right side of the box body; the bottom of the front side of the box body is provided with a plurality of cable interfaces; the bottom surface of the box body is provided with the foot rest, so that the utility model has the beneficial effects that:

according to the technical scheme, compared with the prior art, the intelligent low-voltage distribution line load transfer box is characterized in that a travel switch is installed at an equipment door chain to control an LED lighting plate at the top of equipment, an illuminating lamp is automatically turned on when the door is opened, and the illuminating lamp is automatically turned off when the door is closed, so that wrong connection of a cable is prevented; the superheterodyne wireless receiving switch is designed and installed in the equipment, and the opening and closing of the intelligent switch in the box body are controlled through the opening and closing loop. Therefore, after the working personnel connect the incoming and outgoing cables, the opening and closing states of the equipment can be remotely controlled by holding the remote controller by a hand when the working personnel are far away from the equipment. Personal safety accidents are prevented.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic front view of an intelligent low-voltage distribution line load transfer box according to the present invention;

FIG. 2 is a schematic view of a backside structure of the present invention;

FIG. 3 is a schematic side view of the present invention;

FIG. 4 is a circuit diagram of a primary loop according to the present invention;

FIG. 5 is a circuit diagram of a switching-on/off circuit according to the present invention;

FIG. 6 is a circuit connection diagram of an electric measuring instrument in the utility model;

wherein, 1-a box body; 2-a box door; 3-a travel switch; 4-a light emitting device; 5-a leakage switch; 6-remote control receiving device; 7-remote control receiving antenna; 8-a switch; 9-a current transformer; 10-a circuit breaker; 11-a smart capacitor; 12-an electrical measuring instrument; 13-a fuse; 14-a three-phase four-wire junction box; 15-a dehumidifying device; 16-an insulator; 17-a handle; 18-a cable interface; 19-foot stool.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, 2 and 3, an embodiment of the utility model discloses an intelligent low-voltage distribution line load transfer box, which comprises a box body 1, a box door 2, a hinge and box internal accessories; the front and/or the back of the box body 1 is provided with a box door 2; the box door 2 is connected with the box body 1 through a hinge; the fittings in the box comprise at least one travel switch 3 and at least one light-emitting device 4, the travel switches 3 are connected with the light-emitting devices 4 in a one-to-one correspondence mode, and the travel switches 3 are arranged at the hinges.

The light-emitting device 4 can be an LED lighting panel, the LED lighting panel is hung at the top in the box body 1, the LED lighting panel at the top is controlled through the travel switch 3, the LED lighting panel is automatically opened when the door is opened, and the LED lighting panel is automatically closed when the door is closed, so that the larger fault caused by wrong wiring of a cable is prevented; the number of the travel switches 3 can be set according to the specific structure of the box door.

In another embodiment, as shown in fig. 4 and 5, the in-box accessory further comprises a leakage switch 5, a disconnecting switch, a remote control switch and a remote control receiving device 6; the remote control receiving device comprises terminals KM13, KM14, KM15, KM16, KM17, KM18, KM19 and KM 21;

KM15 and KM19 in the remote control receiving device 6 are respectively connected with control terminals 3 of the leakage switch 1QF and the leakage switch 2QF, KM16 and KM18 are respectively connected with control terminals 4 of the leakage switch 1QF and the leakage switch 2QF, and KM17 and KM21 are respectively correspondingly connected with control terminals 5 of the leakage switch 1QF and the leakage switch 2 QF; travel switch K1 is connected with remote control switch's terminal 1, and travel switch K2 is connected with remote control switch's terminal 2, and KM13, KM14 are connected with remote control switch 3, 4 terminal respectively. The travel switch K1 is connected to the terminal 31 of the light-emitting device 4, and the disconnecting switch QFS is connected to the other terminal 32 of the light-emitting device 4. The leakage switches 1QF and 2QF are intelligent leakage circuit breakers TZB-630A;

in this embodiment, the leakage protection circuit further includes a remote control receiving antenna 7, and the remote control receiving device 6 obtains the control information through the remote control receiving antenna 7, and controls the remote control switch to perform a corresponding action according to the control information, so as to control the on-off state of the leakage switch 5.

In another embodiment, the accessories in the box further comprise a switch QF, current transformers LHa-C, LHa 1-C1, circuit breakers QF1, QF2, L11-13 current buses, an intelligent supplementary capacitor C1 and an intelligent capacitor C2;

the switch QF is connected with current transformers LHa-C and LHa 1-C1 in series, the current transformers LHa 1-C1 are connected with L11-13 current buses, the L11-13 current buses are respectively connected with circuit breakers QF1 and QF2, and are respectively connected with an intelligent compensation capacitor C1 and an intelligent capacitor C2 through the circuit breakers QF1 and QF 2; wherein, a microcomputer controller is arranged in the intelligent capacitor; the L11-13 current bus is connected with one end of each of the leakage switches 1QF and 2 QF; the other ends of the leakage switches 1QF and 2QF are connected with a load; the heating device is characterized by further comprising a heater LR, wherein the heater LR is connected with the current buses L11-13.

The current transformer model is BH-0.66, the transformer precision of LHa, LHb and LHc is 0.2s, and the transformer precision of LHa1, LHb1 and LHc1 is 0.5 s; the model of the switch QF is HDFA-381; the breakers QF1 and QF2 are model DZ 47-63/3P.

In another embodiment, the fittings in the box further comprise a surge protector, one end of the surge protector is connected with the L11-13 current bus, and the other end of the surge protector is connected with the box body shell and grounded.

In another embodiment, as shown in fig. 6, the box fittings further include an electrical measuring instrument 12, fuses RU3, RU2 and RU1, voltage buses L1, L2, L3 and N, wherein the electrical measuring instrument 12 is connected with the current transformer 9 by the following specific connection modes:

no. 2, No. 3 and No. 4 terminals of the electric measuring instrument 12 are correspondingly connected with one ends of fuses RU3, RU2 and RU1 respectively; the other ends of the fuses RU3, RU2 and RU1 are correspondingly connected with the voltage buses L3, L2 and L1 respectively; the terminals No. 1 and No. 32 of the electric measuring instrument are connected in parallel and then are connected with a voltage bus N; the terminals No. 4 and No. 31 of the electric measuring instrument are connected in parallel and then are connected with the L1 of the voltage bus; the No. 6, No. 8 and No. 10 terminals of the electric measuring instrument are connected in parallel and then are connected with the secondary terminals of the current transformer LHa1, the current transformer LHb1 and the current transformer LHc1 and are merged into the grounding N411; the terminals No. 9, No. 7 and No. 5 of the electric measuring instrument are respectively connected with secondary terminals A411, B411 and C411 of a current transformer LHa1, a current transformer LHb1 and a current transformer LHc1, and the terminals No. 11 to No. 18 of the electric measuring instrument are used for being connected with a GPRS module and sending telemetering signals.

The model of the electric measuring instrument 12 is TBPM12-E4, and the model of the fuse is JF5-2.5 RD/6A.

In another embodiment, the inside box fitting further comprises a three-phase four-wire junction box 14, and the terminals No. 2, No. 6 and No. 10 of the three-phase four-wire junction box 14 are respectively connected with the terminals S1 of the current transformers LHa, LHb and LHc; the S2 terminals of LHa, LHb and LHc are respectively connected with No. 3, No. 7 and No. 11 terminals of the three-phase four-wire junction box 14 and are simultaneously grounded; the model of the three-phase four-wire junction box is DFY 1.

In another embodiment, the in-tank fitting further comprises a dehumidifying device 15 for removing moisture and condensation from the interior of the tank.

In another embodiment, the enclosure assembly further comprises a plurality of insulators 16, the insulators 16 being disposed at the live and neutral inlets in the enclosure.

In another embodiment, the left side and the right side of the box body are both provided with handles 17; the bottom of the front surface of the box body is provided with a plurality of cable interfaces 18; the ground of the box body is provided with a foot rest 19.

According to the utility model, the travel switches K1 and K2 are triggered to be closed when the box door is opened left and right, the LED light-emitting plate at the top of the box body is electrified to automatically emit light, and wiring is not easy to be mistakenly connected by rush repair personnel at night under sufficient light, so that larger faults are caused. After the cable is connected, the door light-emitting plate is closed to automatically extinguish, so that the service life of the LED light-emitting plate is prolonged; the present embodiment adopts a high-sensitivity superheterodyne code remote control device, and has no error operation of serial codes. No matter the equipment is started or stopped, a human body does not need to contact the equipment, intelligent remote operation is realized, and the safety of workers is guaranteed.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (9)

1. An intelligent low-voltage distribution line load transfer box is characterized by comprising a box body, a box door, a hinge and box internal accessories; the box door is hinged with the front and/or the back of the box body through a hinge; the fittings in the box comprise at least one travel switch and at least one light-emitting device, and the travel switches are electrically connected with the light-emitting devices in a one-to-one correspondence manner; the travel switch is arranged at the hinge; when the box door is in an open state, the travel switch triggers the light-emitting device to light up, and when the box door is in a closed state, the travel switch triggers the light-emitting device to close.

2. The intelligent low-voltage distribution line load transfer box of claim 1, wherein the in-box accessories further comprise a leakage switch, a disconnecting switch, a remote control switch and a remote control receiving device; wherein, the remote control receiving device comprises terminals KM13, KM14, KM15, KM16, KM17, KM18, KM19 and KM 21;

KM15 and KM19 in the remote control receiving device are respectively connected with a control terminal 3 of an electric leakage switch 1QF and an electric leakage switch 2QF, KM16 and KM18 are respectively connected with a control terminal 4 of the electric leakage switch 1QF and the electric leakage switch 2QF, and KM17 and KM21 are respectively correspondingly connected with a control terminal 5 of the electric leakage switch 1QF and the electric leakage switch 2 QF; the travel switch K1 is connected with a terminal 1 of a remote control switch, the travel switch K2 is connected with a terminal 2 of the remote control switch, KM13 and KM14 are respectively connected with terminals 3 and 4 of the remote control switch, the travel switch K1 is connected with a terminal 31 of a light-emitting device, and the knife switch QFS is connected with the other terminal 32 of the light-emitting device.

3. The intelligent low-voltage distribution line load transfer box according to claim 2, wherein the box fittings further comprise a switch QF, current transformers LHa-C, LHa 1-C1, circuit breakers QF1, QF2, L11-13 current buses, an intelligent compensation capacitor C1 and an intelligent capacitor C2;

the switch QF is connected with the current transformers LHa-C and LHa 1-C1 in series, the current transformers LHa 1-C1 are connected with L11-13 current buses, the L11-13 current buses are respectively connected with the circuit breakers QF1 and QF2, and are respectively connected into the intelligent compensation capacitor C1 and the intelligent capacitor C2 through the circuit breakers QF1 and QF 2; the L11-13 current bus is connected with one end of the leakage switches 1QF and 2 QF; and the other ends of the leakage switches 1QF and 2QF are connected with a load.

4. The intelligent low-voltage distribution line load transfer box of claim 3, wherein the box fittings further comprise a surge protector, one end of the surge protector is connected with the L11-13 current buses, and the other end of the surge protector is connected with the shell of the box body and is grounded.

5. The intelligent low-voltage distribution line load transfer box of claim 3, wherein the in-box accessories further comprise electric measuring instruments, fuses RU3, RU2 and RU1, voltage buses L1, L2, L3 and N, the electric measuring instruments are connected with the current transformers in a specific connection mode comprising:

no. 2, No. 3 and No. 4 terminals of the electric measuring instrument are correspondingly connected with one ends of the fuses RU3, RU2 and RU1 respectively; the other ends of the fuses RU3, RU2 and RU1 are correspondingly connected with the voltage buses L3, L2 and L1 respectively; the terminals No. 1 and No. 32 of the electric measuring instrument are connected in parallel and then are connected with the voltage bus N; the terminals No. 4 and No. 31 of the electric measuring instrument are connected in parallel and then are connected with the L1 of the voltage bus; the No. 6, No. 8 and No. 10 terminals of the electric measuring instrument are connected in parallel and then are connected with the secondary terminals of the current transformer LHa1, the current transformer LHb1 and the current transformer LHc1 and are merged into the grounding N411; and terminals No. 9, No. 7 and No. 5 of the electric measuring instrument are respectively connected with secondary terminals A411, B411 and C411 of the current transformer LHa1, the current transformer LHb1 and the current transformer LHc1, and terminals No. 11 to No. 18 of the electric measuring instrument are used for being connected with a GPRS module and sending telemetering signals.

6. The intelligent low-voltage distribution line load transfer box according to claim 3, wherein the box fittings further comprise three-phase four-wire junction boxes, and terminals No. 2, No. 6 and No. 10 of the three-phase four-wire junction boxes are respectively connected with terminals S1 of current transformers LHa, LHb and LHc; and S2 terminals of the LHa, the LHb and the LHc are respectively connected with No. 3, No. 7 and No. 11 terminals of the three-phase four-wire junction box correspondingly and are simultaneously grounded.

7. The intelligent low-voltage distribution line load transfer box of claim 1, wherein the in-box accessory further comprises a moisture removal device for removing moisture and condensation from the interior of the box.

8. The intelligent low-voltage distribution line load transfer box of claim 1, wherein the box fittings further comprise a plurality of insulators, and the insulators are arranged at a live wire inlet and a zero wire inlet in the box body.

9. The intelligent low-voltage distribution line load transfer box of claim 1, wherein handles are arranged on the left side and the right side of the box body; the bottom of the front surface of the box body is provided with a plurality of cable interfaces; the bottom surface of the box body is provided with a foot rest.

Images