Equipotential terminal box

Abstract

The utility model relates to an equipotential terminal box, which belongs to the technical field of safe electricity utilization and comprises a box body, an insulating copper plate, a potential detection device and a line on-off detection device are arranged in the box body, the insulating copper plate comprises a plurality of cable connecting holes, and both the potential detection device and the line on-off detection device are electrically connected with the insulating copper plate. The potential detection device and the line on-off detection device are both connected with an alarm, and when the voltage on the insulating copper plate rises or the connecting piece between the insulating copper plate and the cable is in poor contact, the alarm is triggered to give an alarm prompt. According to the equipotential terminal box, the potential detection device and the line on-off detection device are additionally arranged in the equipotential terminal box, fault detection can be performed on the insulating copper plate in the box body, fault alarm can be realized through the alarm, a worker can conveniently and timely overhaul the equipotential terminal box with faults, and electric shock accidents are avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of safe electricity use, and in particular relates to an equipotential terminal box. Background Art

[0002] As the name implies, the equipotential terminal box is a box for achieving equipotential connection. In fact, it is a box with an equipotential connection bar. All the electrical equipment shells, lightning protection grounding, metal doors and windows exposed outside the building, etc. that need to be equipotentially connected are connected to the crimping terminals of the equipotential connection bar through wires. The function of the equipotential box is the same as the principle of a lightning rod. It belongs to the overall lightning protection system of the house. Some names are called equipotential devices, equipotential connections, etc. The equipotential box is an equipotential connection collection box with an equipotential connection bar, which is a box with a copper bar inside, and there are ground wires, lightning protection and protective grounding wires for each wall socket. That is, the equipotential terminal box connects the protection trunk line, water and gas metal pipelines, heating and freezing, cooling systems, metal components of the building, etc., to meet the requirements of the specification for electric shock protection electrical appliances with a contact voltage of less than 50V. It is an important part of modern building electrical appliances and is widely used in high-rise buildings.

[0003] In order to ensure that the equipotential terminal box can work normally, the staff needs to use external maintenance equipment to regularly inspect the equipotential terminal box. During the maintenance period of the equipotential terminal box, the equipotential terminal box may malfunction due to some uncontrollable factors, and the equipotential connection of the equipotential terminal box cannot be achieved. In addition, the existing equipotential terminal box does not have the ability to detect faults and provide fault alarm prompts, so that the equipotential terminal box cannot be discovered and repaired in time when problems occur, and even causes electric shock accidents. This is the shortcoming of the existing technology. Utility Model Content

[0004] The purpose of the utility model is to provide a design of an equipotential terminal box to solve the problems existing in the prior art, namely, the lack of automatic fault detection and fault alarm components in the equipotential terminal box, which makes it impossible for staff to eliminate the fault in time, and even causes electric shock accidents, resulting in personal injury and other life and property losses.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] An equipotential terminal box comprises a box body, wherein an insulating copper plate including a plurality of cable connection holes, a potential detection device and a line on-off detection device are arranged in the box body, the insulating copper plate is mounted on the box body via a fixed bracket arranged on the inner wall of the box body, the potential detection device and the line on-off detection device are both electrically connected to the insulating copper plate, and the potential detection device and the line on-off detection device are both connected to an alarm, and when the voltage on the insulating copper plate increases or the connector between the insulating copper plate and the cable is in poor contact, the alarm is triggered to give an alarm prompt.

[0007] A further improvement of the technical solution also includes a box door installed on the box body, a display panel is provided on the box door, and the potential detection device and the line continuity detection device are both electrically connected to the display panel; an alarm is provided on the box door.

[0008] A further improvement of the technical solution is that it also includes a communication module, through which the potential detection device and the line continuity detection device are connected to the display panel; the potential detection device and the line continuity detection device are also connected to an external host through the communication module.

[0009] A further improvement of the technical solution is that the communication module includes at least one of 4G, 5G, GPRS and WIFI.

[0010] A further improvement of the technical solution is that the alarm uses a waterproof and dustproof sound and light integrated buzzer of model NY-22FM.

[0011] A further improvement of the technical solution is that the line on-off detection device includes a line on-off detection circuit, which includes a power supply, a detection switch S1, an adjustable capacitor C1, an adjustable resistor R1, an adjustable resistor R2, a clock chip U1, a capacitor C2, a capacitor C3, an adjustable resistor R3, a field effect transistor Q1, an adjustable resistor R4 and a probe;

[0012] The first end of the detection switch S1 is connected to the positive electrode of the power supply, the second end of the detection switch S1 is connected to the first end of the adjustable resistor R2, the first pin of the clock chip U1, the first end and the adjustable end of the adjustable resistor R4, the second end of the adjustable resistor R2 is connected to the second pin of the clock chip U1 and the first end of the adjustable resistor R1, the second end of the adjustable resistor R1 is connected to the first end of the adjustable capacitor C1, the third pin and the fourth pin of the clock chip, the second end of the adjustable capacitor C1 is connected to the negative electrode of the power supply, the fifth pin of the clock chip U1 is connected to the negative electrode of the power supply through the capacitor C2, the sixth pin of the clock chip U1 is connected to the negative electrode of the power supply, the seventh pin of the clock chip U1 is connected to the first end of the adjustable resistor R3 through the capacitor C3, the second end and the adjustable end of the adjustable resistor R3 are connected to the first end of the buzzer, the second end of the buzzer is connected to the negative electrode of the power supply and the source of the field effect tube Q1, the gate of the field effect tube Q1 is connected to the eighth pin of the clock chip U1 and the second end of the adjustable resistor R4 through the probe insulating copper plate.

[0013] A further improvement of the technical solution is that the clock chip U1 adopts a clock chip of model NE555.

[0014] A further improvement of the technical solution is that the potential detection device adopts an equipotential tester with a model of ETCR3600.

[0015] The beneficial effect of the utility model is that, by adding a potential detection device and a line on-off detection device in the equipotential terminal box, the utility model can realize fault detection on the insulating copper plate in the box body, and realize fault alarm through the alarm, so that the staff can promptly repair the faulty equipotential terminal box, restore the normal operation of the equipotential terminal box, and prevent electric shock accidents.

[0016] In addition, the utility model has a reliable design principle, a simple structure and a very broad application prospect.

[0017] It can be seen that compared with the prior art, the present invention has outstanding substantive features and significant progress, and the beneficial effects of its implementation are also obvious. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the equipotential terminal box.

[0019] Figure 2 This is the schematic diagram of the line continuity detection circuit.

[0020] 110 is the box body, 120 is the insulating copper plate, 121 is the cable connection hole, 130 is the potential detection device, 140 is the line on-off detection device, 150 is the fixing bracket, 160 is the box door, 170 is the alarm, 180 is the display panel, and 210 is the probe. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0023] like Figure 1 As shown, the utility model provides an equipotential terminal box, including a box body, in which an insulating copper plate including a plurality of cable connection holes, a potential detection device and a line continuity detection device are arranged inside the box body, the insulating copper plate is mounted on the box body by a fixed bracket arranged on the inner wall of the box body, and the cable connection holes on the insulating copper plate are connected to the conductive metal devices leaking inside and outside the building where the equipotential terminal box is installed through cables; the potential detection device and the line continuity detection device are both electrically connected to the insulating copper plate, specifically, the potential detection device is electrically connected to the cables on the insulating copper plate, the potential detection device is used to detect the potential changes at various positions on the insulating copper plate, and the line continuity detection device is used to detect the connection of the cables at various positions on the insulating copper plate.

[0024] In addition, the potential detection device and the line continuity detection device are both connected to an alarm, and controllers are provided inside the potential detection device and the line continuity detection device. When the voltage on the insulating copper plate increases or the connector between the insulating copper plate and the cable is in poor contact, the alarm is triggered to give an alarm prompt. The potential detection device adopts an equipotential tester with model ETCR3600.

[0025] Specifically, the body of the equipotential terminal box is made of anti-corrosion insulating material, which can prevent the equipotential terminal box from accelerating corrosion due to being in a dark and humid environment all year round; the insulating copper plate is made of whisker-modified plastic insulating copper plate, which has the functions of moisture-proof, corrosion-resistant and durable; and the alarm uses a waterproof and dustproof sound and light integrated buzzer with model NY-22FM.

[0026] In addition, the equipotential terminal box also includes a box door installed on the box body, a display panel is provided on the box door, and an alarm is also provided on the box door; the potential detection device and the line continuity detection device are both electrically connected to the display panel. When the potential detection device or the line continuity detection device detects a fault, the display panel can display the fault circuit, the direction of the fault current and the source of the fault voltage, etc.

[0027] In order to keep the equipotential terminal box in communication with the outside world, the equipotential terminal box also includes a communication module, and the potential detection device and the line on-off detection device are both connected to the display panel through the communication module; the potential detection device and the line on-off detection device are also connected to the external host through the communication module. The communication module includes at least one of 4G, 5G, GPRS and WIFI.

[0028] Among them, the line on-off detection device includes a line on-off detection circuit, and one or more line on-off detection circuits can be set as needed; Figure 2 As shown, the line on-off detection circuit includes a power supply, a detection switch S1, an adjustable capacitor C1, an adjustable resistor R1, an adjustable resistor R2, a clock chip U1, a capacitor C2, a capacitor C3, an adjustable resistor R3, a field effect transistor Q1, an adjustable resistor R4 and a probe; the first end of the detection switch S1 is connected to the positive electrode of the power supply, the second end of the detection switch S1 is connected to the first end of the adjustable resistor R2, the first pin of the clock chip U1, the first end of the adjustable resistor R4, and the adjustable end, the second end of the adjustable resistor R2 is connected to the second pin of the clock chip U1 and the first end of the adjustable resistor R1, and the second end of the adjustable resistor R1 is connected to the first The third and fourth pins of the clock chip are connected to the negative electrode of the power supply, the fifth pin of the clock chip U1 is connected to the negative electrode of the power supply through the capacitor C2, the sixth pin of the clock chip U1 is connected to the negative electrode of the power supply, the seventh pin of the clock chip U1 is connected to the first end of the adjustable resistor R3 through the capacitor C3, the second end and the adjustable end of the adjustable resistor R3 are connected to the first end of the buzzer, the second end of the buzzer is connected to the negative electrode of the power supply and the source of the field effect tube Q1, the gate of the field effect tube Q1 is connected to the eighth pin of the clock chip U1 and the second end of the adjustable resistor R4 through the probe insulated copper plate. Among them, the clock chip U1 adopts a clock chip of model NE555, and the clock chip U1 is also connected to the controller inside the line on-off detection device.

[0029] The working principle of the equipotential terminal box is as follows: when the potential detection device detects that the voltage on the insulating copper plate in the equipotential terminal box increases, the corresponding alarm is immediately triggered to sound and light alarm, reminding the staff that there is a risk of leakage in the exposed conductive parts, and the staff should promptly inspect and repair the equipotential terminal box. In addition, when the line on-off detection device detects that the connector on the insulating copper plate in the equipotential terminal box has poor contact, the corresponding alarm is immediately triggered to sound and light alarm, reminding the staff to promptly inspect and repair.

[0030] The above disclosure is only the preferred implementation mode of the utility model, but the utility model is not limited thereto. Any non-creative changes that can be thought of by technicians in this field, as well as several improvements and modifications made without departing from the principle of the utility model, should fall within the scope of protection of the utility model.

Claims

1. An equipotential terminal box, characterized in that: The utility model comprises a box body, in which an insulating copper plate including a plurality of cable connection holes, a potential detection device and a line on-off detection device are arranged. The insulating copper plate is mounted on the box body by a fixed bracket arranged on the inner wall of the box body. The potential detection device and the line on-off detection device are both electrically connected to the insulating copper plate. The potential detection device and the line on-off detection device are both connected to an alarm. When the voltage on the insulating copper plate increases or the connection between the insulating copper plate and the cable is poor, the alarm is triggered to give an alarm prompt.

2. The equipotential terminal box according to claim 1, characterized in that: It also includes a box door installed on the box body, a display panel is arranged on the box door, and a potential detection device and a line on-off detection device are both electrically connected to the display panel; an alarm is arranged on the box door.

3. The equipotential terminal box according to claim 2, characterized in that: It also includes a communication module, through which the potential detection device and the line continuity detection device are connected to the display panel; the potential detection device and the line continuity detection device are also connected to an external host through the communication module.

4. The equipotential terminal box according to claim 3, characterized in that: The communication module includes at least one of 4G, 5G, GPRS and WIFI.

5. The equipotential terminal box according to claim 1, characterized in that: The alarm uses a NY-22FM waterproof and dustproof sound and light integrated buzzer.

6. The equipotential terminal box according to claim 5, characterized in that: The line on-off detection device includes a line on-off detection circuit, which includes a power supply, a detection switch S1, an adjustable capacitor C1, an adjustable resistor R1, an adjustable resistor R2, a clock chip U1, a capacitor C2, a capacitor C3, an adjustable resistor R3, a field effect transistor Q1, an adjustable resistor R4 and a probe; The first end of the detection switch S1 is connected to the positive electrode of the power supply, the second end of the detection switch S1 is connected to the first end of the adjustable resistor R2, the first pin of the clock chip U1, the first end and the adjustable end of the adjustable resistor R4, the second end of the adjustable resistor R2 is connected to the second pin of the clock chip U1 and the first end of the adjustable resistor R1, the second end of the adjustable resistor R1 is connected to the first end of the adjustable capacitor C1, the third pin and the fourth pin of the clock chip, the second end of the adjustable capacitor C1 is connected to the negative electrode of the power supply, the fifth pin of the clock chip U1 is connected to the negative electrode of the power supply through the capacitor C2, the sixth pin of the clock chip U1 is connected to the negative electrode of the power supply, the seventh pin of the clock chip U1 is connected to the first end of the adjustable resistor R3 through the capacitor C3, the second end and the adjustable end of the adjustable resistor R3 are connected to the first end of the buzzer, the second end of the buzzer is connected to the negative electrode of the power supply and the source of the field effect tube Q1, the gate of the field effect tube Q1 is connected to the eighth pin of the clock chip U1 and the second end of the adjustable resistor R4 through the probe insulating copper plate.

7. The equipotential terminal box according to claim 6, characterized in that: The clock chip U1 adopts the clock chip model NE555.

8. The equipotential terminal box according to claim 1, characterized in that: The potential detection device adopts an equipotential tester of model ETCR3600.

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