CN220252134U

CN220252134U - Circuit breaker electric leakage detection device

Info

Publication number: CN220252134U
Application number: CN202321562788.6U
Authority: CN
Inventors: 郑广; 刘思思; 郑宇�; 刘明荣
Original assignee: Zhejiang Guocheng Electric Co ltd
Current assignee: Zhejiang Guocheng Electric Co ltd
Priority date: 2023-06-19
Filing date: 2023-06-19
Publication date: 2023-12-26
Anticipated expiration: 2033-06-19

Abstract

The utility model discloses a circuit breaker electric leakage detection device, which belongs to the technical field of circuit breaker protection devices and comprises a mounting plate, wherein a supporting leg is fixedly arranged at the lower end of the mounting plate, a first insulating pad is fixedly arranged at the upper end of the mounting plate, a circuit breaker body is fixedly arranged on the first insulating pad, a detection box is fixedly arranged at the upper end of the circuit breaker body, an indicator lamp and an alarm are fixedly arranged at the upper end of the detection box, the indicator lamp is positioned at one side of the alarm, the indicator lamp is electrically connected with the alarm and the outer surface of the circuit breaker body, the circuit breaker can be insulated through the first insulating pad, and when electric leakage occurs, current does not extend to the ground, so that the safety of maintenance workers can be ensured, and meanwhile, when the electric leakage occurs, the indicator lamp, the alarm and the circuit breaker body form a closed loop, so that the leaked electric quantity can provide electric energy for the indicator lamp and the alarm, and thus the staff can be reminded of maintenance.

Description

Circuit breaker electric leakage detection device

Technical Field

The utility model relates to a circuit breaker electric leakage detection device, and belongs to the technical field of circuit breaker protection devices.

Background

In the process of electricity generation, transportation and use, power distribution is an extremely important link, a power distribution system comprises a transformer and various high-low voltage electrical equipment, a circuit breaker is an electrical appliance with wide application range, the circuit breaker is a switching device capable of switching on and off current under normal loop conditions and switching on and off current under abnormal loop conditions within a specified time, the circuit breaker can be used for distributing electric energy, and meanwhile, when the circuit breaker has serious overload or short circuit, undervoltage and other faults, the circuit breaker can automatically cut off the circuit, however, when the circuit breaker has electric leakage, the voltage judgment is inaccurate easily, so that the normal work of the circuit breaker is influenced, and the danger of electric shock is easy to occur when workers overhaul, so that the electric leakage detection device is needed to detect the electric leakage

The method comprises the following steps: CN213275885U, a circuit breaker leakage detecting device, comprising a housing, a detecting mechanism, a connecting mechanism and a warning mechanism, wherein the detecting mechanism is arranged in the housing, the detecting mechanism comprises a plurality of iron cores, a fire wire, a zero wire, a plurality of hall sensors, an amplifier and an or gate circuit, the or gate circuit comprises a nor gate circuit and a first nor gate circuit, the nor gate circuit comprises a first MOS tube to a fourth MOS tube, and the first nor gate circuit comprises a fifth MOS tube and a sixth MOS tube; the connecting mechanism comprises a supporting frame, an electromagnet, a spring, a supporting block, a movable contact rod and a static contact block which are arranged in the supporting frame; the warning mechanism comprises a proximity sensor, a second NOT gate circuit, a control switch, a warning lamp, a buzzer, an external power supply and an internal battery. The utility model has compact structure, realizes leakage detection and leakage sound and light alarm, reduces the delay of circuit breaking operation, can warn when in leakage, but can not consume the leaked electric quantity, and is easy to form messy current around the circuit breaker, thereby causing secondary damage to the circuit breaker, and needing an external power supply to supply power, thereby causing waste of the electric quantity.

Disclosure of Invention

The utility model aims to solve the problems and provide a circuit breaker leakage detection device, wherein a circuit breaker can be insulated through a first insulating pad, and current can not extend to the ground when leakage occurs, so that the safety of maintenance workers can be ensured, and meanwhile, when leakage occurs, an indicator lamp, an alarm and a circuit breaker body form a closed loop, so that the leaked electric quantity can provide electric energy for the indicator lamp and the alarm, and the maintenance workers can be reminded.

The utility model realizes the purpose through the following technical scheme that the circuit breaker electric leakage detection device comprises a mounting plate, wherein a supporting foot is fixedly arranged at the lower end of the mounting plate, a first insulating pad is fixedly arranged at the upper end of the mounting plate, a circuit breaker body is fixedly arranged on the first insulating pad, a detection box is fixedly arranged at the upper end of the circuit breaker body, an indicator lamp and an alarm are fixedly arranged at the upper end of the detection box, the indicator lamp is positioned at one side of the alarm, the indicator lamp is electrically connected with the outer surface of the alarm and the outer surface of the circuit breaker body, when electric leakage occurs, the first insulating pad can cut off current, current is prevented from spreading to the ground, meanwhile, a closed loop formed by the circuit breaker body, the indicator lamp and the alarm can consume current, and workers are reminded, and meanwhile, secondary damage of the circuit breaker body caused by the current is prevented.

Preferably, in order to install the breaker body on the ground, a rubber pad is fixedly arranged at the lower end of the supporting leg, a mounting hole is formed in the circumferential array at the upper end of the lower portion of the supporting leg, the mounting hole extends to the lower end of the rubber pad, an expansion bolt is arranged in the mounting hole, and the lower end of the expansion bolt is fixedly connected with the external ground.

Preferably, in order to install the detection box on the circuit breaker body, avoid forming other closed circuits simultaneously, the fixed orifices has all been seted up at the both sides both ends of detection box, install insulating bolt in the fixed orifices, insulating bolt's lower extreme extends to the inside of circuit breaker body, just insulating bolt with circuit breaker body threaded connection, the lower extreme fixed mounting of detection box has the second insulating pad, the second insulating pad with the upper end in close contact with of circuit breaker body.

Preferably, in order to remind the staff when consuming the electric current when leaking electricity, the inside fixed mounting of detection case has the baffle, slidable mounting has the conductor bar on the baffle, install insulating cover around the conductor bar, the lower extreme of conductor bar with the upper end of circuit breaker body contacts, the upper and lower fixed mounting of conductor bar has the extension spring, the other end of extension spring with the upper end fixed connection of baffle, the upper end fixed mounting of conductor bar has connecting wire, connecting wire's upper end respectively with pilot lamp and alarm are connected.

The beneficial effects of the utility model are as follows: the circuit breaker can be insulated through the first insulating pad, and current can not extend to subaerial when taking place to maintenance workman's safety can be guaranteed, and when taking place the electric leakage, pilot lamp, alarm and circuit breaker body form a closed circuit simultaneously, thereby the electric quantity of revealing can provide the electric energy for pilot lamp and alarm, thereby can remind the staff to maintain.

Drawings

Fig. 1 is a schematic diagram of the overall structure of the present utility model.

Figure 2 is a half cross-sectional view of a support foot according to the present utility model.

Fig. 3 is a schematic structural view of the detection box in the present utility model.

Fig. 4 is a half sectional view of the inspection box in the present utility model.

In the figure: 1. a mounting plate; 2. supporting feet; 3. a first insulating pad; 4. a circuit breaker body; 5. a detection box; 6. an indicator light; 7. an alarm; 8. a rubber pad; 9. a mounting hole; 10. an expansion bolt; 11. a fixing hole; 12. an insulating bolt; 13. a second insulating pad; 14. a partition plate; 15. a conductive rod; 16. an insulating sleeve; 17. a tension spring; 18. and connecting the electric wires.

Description of the embodiments

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, a circuit breaker leakage detection device includes a mounting plate 1, a supporting leg 2 is fixedly mounted at the lower end of the mounting plate 1, a first insulating pad 3 is fixedly mounted at the upper end of the mounting plate 1, a circuit breaker body 4 is fixedly mounted on the first insulating pad 3, a detection box 5 is fixedly mounted at the upper end of the circuit breaker body 4, an indicator lamp 6 and an alarm 7 are fixedly mounted at the upper end of the detection box 5, the indicator lamp 6 is located one side of the alarm 7, the indicator lamp 6 is electrically connected with the outer surface of the alarm 7 and the circuit breaker body 4, when leakage occurs, the first insulating pad 3 can cut off current, current is prevented from spreading to the ground, and meanwhile, a closed loop formed by the circuit breaker body 4, the indicator lamp 6 and the alarm 7 can consume current, and secondary damage to the circuit breaker body 4 is prevented while staff is reminded.

As a technical optimization scheme of the utility model, as shown in fig. 2, a rubber pad 8 is fixedly arranged at the lower end of a supporting leg 2, mounting holes 9 are formed in a circumferential array at the upper end of the lower part of the supporting leg 2, the mounting holes 9 extend to the lower end of the rubber pad 8, expansion bolts 10 are mounted in the mounting holes 9, the lower ends of the expansion bolts 10 are fixedly connected with the external ground, and when the circuit breaker is used, the circuit breaker body 4 is firstly mounted at a using place through the expansion bolts 10.

As a technical optimization scheme of the utility model, as shown in fig. 4, fixing holes 11 are formed at two ends of two sides of a detection box 5, insulating bolts 12 are installed in the fixing holes 11, the lower ends of the insulating bolts 12 extend into the breaker body 4, the insulating bolts 12 are in threaded connection with the breaker body 4, a second insulating pad 13 is fixedly arranged at the lower end of the detection box 5, the second insulating pad 13 is tightly contacted with the upper end of the breaker body 4, and when the detection box 5 is installed at the upper end of the breaker body 4 through the insulating bolts 12, meanwhile, the second insulating pad 13 can isolate the detection box 5 from the breaker body 4, so that other closed loops are prevented from influencing detection effects.

As a technical optimization scheme of the utility model, as shown in fig. 4, a baffle plate 14 is fixedly arranged in the detection box 5, a conductive rod 15 is slidably arranged on the baffle plate 14, an insulating sleeve 16 is arranged around the conductive rod 15, the lower end of the conductive rod 15 is contacted with the upper end of the breaker body 4, a tension spring 17 is fixedly arranged at the lower end of the upper end of the conductive rod 15, the other end of the tension spring 17 is fixedly connected with the upper end of the baffle plate 14, a connecting wire 18 is fixedly arranged at the upper end of the conductive rod 15, the upper end of the connecting wire 18 is respectively connected with an indicator lamp 6 and an alarm 7, when electric leakage occurs, the surfaces of the indicator lamp 6, the alarm 7, the connecting wire 18, the conductive rod 15 and the breaker body 4 can form a closed loop, current can be consumed in the closed loop, and meanwhile, the indicator lamp 6 and the alarm 7 can work, so that the purpose of reminding workers is achieved.

When the circuit breaker is used, the circuit breaker body 4 is firstly installed at a use place through the expansion bolt 10, then the detection box 5 is installed at the upper end of the circuit breaker body 4 through the insulation bolt 12, meanwhile, the second insulation pad 13 can isolate the detection box 5 from the circuit breaker body 4, other closed loops are prevented from influencing the detection effect, when electric leakage occurs, the surfaces of the indicator lamp 6, the alarm 7, the connecting wire 18, the conductive rod 15 and the circuit breaker body 4 can form a closed loop, current can be consumed in the closed loop, and meanwhile, the indicator lamp 6 and the alarm 7 can work, so that the purpose of reminding workers is achieved.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims

1. The utility model provides a circuit breaker electric leakage detection device which characterized in that: the automatic detection device comprises a mounting plate (1), wherein a supporting leg (2) is fixedly arranged at the lower end of the mounting plate (1), a first insulating pad (3) is fixedly arranged at the upper end of the mounting plate (1), a circuit breaker body (4) is fixedly arranged on the first insulating pad (3), a detection box (5) is fixedly arranged at the upper end of the circuit breaker body (4), an indicator lamp (6) and an alarm (7) are fixedly arranged at the upper end of the detection box (5), the indicator lamp (6) is positioned at one side of the alarm (7), the indicator lamp (6) is electrically connected with the alarm (7), and the indicator lamp (6) is electrically connected with the outer surface of the alarm (7) and the circuit breaker body (4); a baffle plate (14) is fixedly arranged in the detection box (5), a conductive rod (15) is slidably arranged on the baffle plate (14), an insulating sleeve (16) is arranged around the conductive rod (15), and the lower end of the conductive rod (15) is contacted with the upper end of the breaker body (4); the upper end of the conductive rod (15) is fixedly provided with a connecting wire (18), and the upper end of the connecting wire (18) is respectively connected with the indicator lamp (6) and the alarm (7).

2. The electrical leakage detection device for circuit breaker according to claim 1, wherein: the lower extreme fixed mounting of supporting legs (2) has rubber pad (8), mounting hole (9) have been seted up to the lower part upper end circumference array of supporting legs (2), mounting hole (9) extend to the lower extreme of rubber pad (8).

3. The electrical leakage detection device for circuit breaker according to claim 2, wherein: an expansion bolt (10) is arranged in the mounting hole (9), and the lower end of the expansion bolt (10) is fixedly connected with the external ground.

4. The electrical leakage detection device for circuit breaker according to claim 1, wherein: the detection box is characterized in that fixing holes (11) are formed in two ends of two sides of the detection box (5), insulating bolts (12) are installed in the fixing holes (11), the lower ends of the insulating bolts (12) extend to the inside of the circuit breaker body (4), and the insulating bolts (12) are in threaded connection with the circuit breaker body (4).

5. The electrical leakage detection device for circuit breaker according to claim 1, wherein: the lower extreme fixed mounting of detection case (5) has second insulating pad (13), second insulating pad (13) with the upper end in close contact of circuit breaker body (4).

6. The electrical leakage detection device for circuit breaker according to claim 1, wherein: a tension spring (17) is fixedly arranged at the lower end of the upper part of the conductive rod (15), and the other end of the tension spring (17) is fixedly connected with the upper end of the partition plate (14).