CN206420988U - A kind of bus duct joint electric leakage alarm device - Google Patents

Abstract

The utility model relates to the technical field of bus ducts, in particular to a leakage alarm device for bus duct joints; It is connected to the inner wall of the connecting plate, and a single-chip microcomputer with built-in alarm is installed on the outer wall of the connecting plate; The /D converter converts it into a digital signal, and the received digital signal is filtered and rectified by the single-chip microcomputer to output. The single-chip microcomputer is equipped with an alarm. When a leakage is detected, the alarm on the single-chip microcomputer will start. Real-time monitoring and alarming of the leakage of the busbar joints.

Description

A leakage alarm device for busbar joints

technical field

The utility model relates to the technical field of bus ducts, in particular to a leakage alarm device for joints of bus ducts.

Background technique

Busway refers to a closed metal device composed of copper and aluminum busbar columns, which is used to distribute large power to various components of the decentralized system.

The busway is developed by the United States, a new circuit called "Bus-Way-System", which uses copper or aluminum as a conductor, supported by non-olefinic insulation, and then installed in a metal groove to form a new type conductor.

With the emergence of modern engineering facilities and equipment, the electricity consumption of all walks of life has increased rapidly, especially the emergence of many high-rise buildings and large workshops, and now it has become indispensable in electrical equipment and power systems such as high-rise buildings and factories. The wiring method; the traditional cable as a transmission wire can no longer meet the requirements in the large current transmission system, the parallel use of multiple cables brings a lot of inconvenience to the site installation and construction connection and due to the needs of various buildings such as buildings and factories , and this need has a tendency to increase year by year. Using the original circuit wiring method, that is, the pipe-through method, brings many difficulties during construction. Moreover, when it is necessary to change the power distribution system, it is almost impossible to make it simpler. However, if the busway is used, it is very easy to achieve the purpose, and it can also make the building more beautiful.

Compared with the traditional cables, the bus duct fully demonstrates its superiority in the transmission of large currents. At the same time, due to the adoption of new technology and new technology, it greatly reduces the cost of the connection at the two ends of the bus duct and the insertion of the branch port. contact resistance and temperature rise, and high-quality insulating materials are used in the busway, which improves the safety and reliability of the busway and makes the whole system more perfect.

The characteristics of the bus duct are series matching, commercial production, small size, large capacity, short design and construction period, convenient assembly and disassembly, non-combustible, safe and reliable, and long service life.

At present, the long-term operation of the busway will cause dielectric loss and cause the risk of leakage of the busway; when the load current exceeds the rated current, the copper bars inside the busway will heat up and the internal temperature will rise. Because the bus duct itself has no leakage protection measures, it often runs for a long time, which will cause the bus duct and its distribution lines to be in a state of temperature rise for a long time, so the contacts and terminals of the conductor will be lost, the insulation performance of the line will also be reduced, and the aging effect will be accelerated The service life of the bus duct. If it is seriously overloaded for a long time, the temperature of the busway and its distribution lines will rise sharply, and the insulation of the lines will soften and collapse, which will cause a series of hazards such as short circuit and burnout of the lower circuit breaker, which will bring safety hazards to people's lives and cause serious damage. major property damage.

Contents of the invention

In order to overcome the above-mentioned deficiencies, the purpose of this utility model is to provide a leakage alarm device for bus duct joints, which has a simple structure, and monitors the leakage of bus duct in real time through a leakage sensor, and passes the received analog signal through A/D The converter converts it into a digital signal, and the received digital signal is filtered and rectified by the single-chip microcomputer to output. The single-chip microcomputer is equipped with an alarm. When a leakage is detected, the alarm on the single-chip microcomputer will start. Real-time monitoring and alarming of joint leakage.

The technical scheme that the utility model solves its technical problem is:

A leakage alarm device for bus duct joints, which includes a bus duct and an alarm box, the alarm box is connected between adjacent bus ducts, a joint is provided at one end of the bus duct, and a There are two connecting plates and a supporting plate, the two ends of the supporting plate are respectively connected on the inner side wall of the connecting plate, the outer wall of the connecting plate is equipped with a single-chip microcomputer with a built-in alarm, and the supporting plate An A/D converter is installed inside, and four cylinders are arranged on both side walls of the support plate, and a leakage sensor is arranged in the cylinder, and the output end of the leakage sensor is connected to the A/D conversion The three busbars of the busbar slot protrude from the joint part and are respectively inserted into the slots between the adjacent cylinders.

As an improvement of the utility model, the joint part is provided with a clamping part for connecting with the connecting plate.

As a further improvement of the utility model, the alarm is a buzzer.

In the utility model, the leakage sensor in the cylinder is used to monitor the leakage of the busway in real time, and the received analog signal is converted into a digital signal through an A/D converter, and the received digital signal is filtered by a single-chip microcomputer The rectifier output is equipped with an alarm on the single-chip microcomputer. When a leakage is detected, the alarm on the single-chip microcomputer will start, realizing the real-time monitoring and alarm of the leakage of the bus duct.

Description of drawings

For ease of description, the utility model is described in detail by the following preferred embodiments and accompanying drawings.

Fig. 1 is the internal connection structure schematic diagram of the present utility model;

Reference signs: 1-busway, 11-joint part, 12-busbar, 13-clamping column, 2-alarm box, 21-connecting plate, 22-supporting plate, 23-cylinder, 24-single-chip microcomputer, 25- A/D converter, 26-leakage sensor, 27-alarm.

detailed description

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

As shown in FIG. 1 , a leakage alarm device for a bus duct joint of the present invention includes a bus duct 1 and an alarm box 2 , and the alarm box 2 is connected between adjacent bus ducts 1 .

One end of the bus duct 1 is provided with a joint part 11 .

Two connecting plates 21 and a support plate 22 are arranged in the alarm box 2, and the two ends of the supporting plate 22 are respectively connected on the inner side wall of the connecting plate 21, and a single-chip microcomputer with a built-in alarm 27 is installed on the outer side wall of the connecting plate 21 24. An A/D converter 25 is installed in the support plate 22, and four cylinders 23 are arranged on both side walls of the support plate 22. A leakage sensor 26 is arranged in the cylinder 23, and the output terminal of the leakage sensor 26 is connected to the A The /D converter 25 is electrically connected, and the three bus bar extension joints 11 of the bus bar duct 1 are respectively inserted into the slots between the adjacent cylinders 23 .

In the utility model, the leakage sensor 26 in the cylinder 23 monitors the leakage of the busway 1 in real time, converts the received analog signal into a digital signal through the A/D converter 25, and converts the received digital signal into a digital signal. The signal is filtered and rectified by the single-chip microcomputer 24, and the single-chip microcomputer 24 is equipped with an alarm 27. When an electric leakage is detected, the alarm 27 on the single-chip microcomputer 24 will start, realizing the real-time monitoring and alarm of the electric leakage of the bus duct 1.

In order to better connect the joint portion 11 to the connecting plate 21 tightly, the joint portion 11 is provided with a clamping column 13 for connecting with the connecting plate 21 , and the clamping column 13 is clamped to the connecting plate 21 .

The utility model provides an embodiment of the alarm 27, and the alarm 27 is a buzzer.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (3)

1. a kind of bus duct joint electric leakage alarm device, it is characterised in that including bus duct and warning box, the warning box connection Between the adjacent bus duct, one end of the bus duct is provided with connector portions,

Two pieces of connecting plates and one piece of supporting plate are provided with the warning box, the two ends of the supporting plate are connected to the company On the madial wall of fishplate bar, it is provided with the interior single-chip microcomputer for setting alarm, the supporting plate and installs on the lateral wall of the connecting plate Have to be provided with four cylinders, the cylinder on A/D converter, the two side of the supporting plate and be provided with electricity leakage sensor, The output end of the electricity leakage sensor is electrically connected with the A/D converter, and three buses of the bus duct stretch out institute Connector portions are stated to insert respectively in the interpolation slit between the adjacent cylinder.

2. a kind of bus duct joint electric leakage alarm device according to claim 1, it is characterised in that the connector portions are set There is the clip-connecting rod for being connected with the connecting plate.

3. a kind of bus duct joint electric leakage alarm device according to claim 2, it is characterised in that the alarm is honeybee Ring device.