CN206697889U - A kind of port case for bus duct - Google Patents

Abstract

The utility model provides a port box for a bus duct, which comprises a box body connected to the end of the bus duct body, the box is provided with a conductor transfer device connected to the bus duct body, and the conductor transfer device The device respectively connects the conductors in the bus duct to the current monitoring device installed in the box through the wires, and the box is also equipped with a circuit breaker, and the access terminal of the circuit breaker is respectively connected to the current monitoring device and the conductor. The device is connected, and the other end of the circuit breaker is also connected to the surge protector installed in the box through wires; the utility model can monitor the current situation in the bus duct, and effectively protect the bus duct when the current fluctuates, and when there is a short circuit, etc. Automatic short circuit in case of emergency to avoid dangerous situations such as electric shock, overheating and fire.

Description

A port box for busway

technical field

The utility model relates to a bus duct system used in power supply, in particular to a port box used in the bus duct system.

Background technique

With the rapid development of urban and rural areas in modern society, the corresponding demand for power supply is also advancing by leaps and bounds. Especially in large computer rooms, large production workshops and high-rise buildings, the traditional cable power transmission method has become increasingly unable to meet the power supply requirements, so busway This power distribution device.

Busway is an efficient power supply device, which has excellent effects in rational power distribution and high-current safe transmission, especially suitable for high-rise buildings and large-scale production of electricity. The currently used busway mainly includes the following devices: a power supply box for supplying current, a busway for transmitting current to the required power location, and a socket box for connecting current to electrical equipment. Flexible and diverse when power off, plug and play, hot-swappable and full-point live new power supply features. However, the existing busway system itself still has considerable shortcomings. As shown in Figure 1, the end of the busway part is only closed, which is inconvenient in actual use, especially in large factories. And in high-rise residential buildings, since there is only a control device at the power supply end, the busway branched to each user end has no self-protection system and monitoring device, and equipment damage and safety accidents are prone to occur when current fluctuations and accidents occur.

Utility model content

Aiming at the deficiencies in the prior art, the utility model provides a port box for busway to solve the problem that the port box used in the prior art mentioned in the above background technology is too simple, and only the circuit is closed problems; a port box of the utility model includes current monitoring devices, circuit breakers, surge protectors and other devices, which can monitor the current situation in the bus duct and effectively protect the bus duct when the current fluctuates. Automatic short circuit in case of emergency to avoid dangerous situations such as electric shock, overheating and fire.

In order to achieve the above object, the utility model adopts the following technical solutions:

A port box for bus duct, including a box body connected to the end of the bus duct body, characterized in that: the box is provided with a conductor transfer device, a current monitoring device, a circuit breaker and a surge protector , the input end of the conductor transfer device is connected to the end of the bus duct body, the detection end of the current monitoring device and the three-phase input end of the circuit breaker are all connected to the three-phase output end of the conductor transfer device through wires in sequence The three-phase output terminal of the circuit breaker is connected to the three-phase input terminal of the surge protector through wires, and the conductor transfer device, the circuit breaker and the neutral common terminal of the surge protector are sequentially connected in series.

Further, guide rails for connection and fixation are provided in the box, the guide rails are vertically placed and connected and fixed with the rear side plate of the box body, and card slots are provided on the guide rails.

Further, the current monitoring device is installed in the middle of the guide rail, and the circuit breaker and surge protector are respectively installed on the guide rails on the left and right sides of the current monitoring device, and the above devices are fixed on the guide rail by bolts and nuts used together. card slot.

Further, a monitoring display is provided on the front cover of the box, and the monitoring display is electrically connected to the current monitoring device.

Further, the current monitoring device is also provided with a main circuit control switch for controlling the connection of the bus duct body.

Further, the lower edge of the monitoring display is hingedly connected to the front cover, and the monitoring display can be turned outward by 0°-45°.

Compared with the prior art, the utility model has the following beneficial effects:

1. The cabinet of the utility model is equipped with a current monitoring device, which can detect the current situation in the conductor inside the bus duct in real time, and reflect it to the user through the monitoring display on the cover plate. When the current fluctuates or other abnormal conditions occur, Can predict and take countermeasures in advance according to current changes;

2. There is a circuit breaker in the box. In the event of a short circuit and other high current conditions, the circuit breaker on the circuit will disconnect the switch to avoid burning circuit components and causing a fire due to high temperature;

3. There is a surge protector in the box, which can absorb sudden huge energy in the face of lightning influence or other instantaneous overvoltage surges, conduct shunt in a very short time, and avoid damage to other components in the circuit. Components and various equipment connected to the circuit cause damage.

Description of drawings

Fig. 1 is a kind of port box of prior art;

Fig. 2 is a front view of the interior of a port box for busway of the present invention;

Fig. 3 is a schematic diagram of a monitoring display on the port box cover of the utility model for busway;

In the figure: 1 box body, 2 bus duct body, 3 conductor transfer device, 4 current monitoring device, 5 circuit breaker, 6 surge protector, 7 monitoring display, 8 cover plate, 9 circuit master control switch, 10 guide.

detailed description

Below in conjunction with accompanying drawing and embodiment the technical solution in the utility model is further described.

Example:

As shown in Figure 2-3, the utility model proposes a port box for bus duct, which includes a box body 1 connected to the end of the bus duct body 2, and a conductor transfer device is arranged in the box body 1 3. Current monitoring device 4, circuit breaker 5 and surge protector 6, the input end of the conductor transfer device 3 is connected to the end of the bus duct body 2, the detection terminal of the current monitoring device 4 and the circuit breaker protection The three-phase input ends of the circuit breaker 5 are connected to the three-phase output ends of the conductor transfer device 3 in turn through wires, and the three-phase output ends of the circuit breaker 5 are connected to the three-phase input ends of the surge protector 6 through wires. The neutral common ends of the conductor transfer device 3, the circuit breaker 5 and the surge protector 6 are serially connected in sequence, and the current monitoring device 4 is also provided with a circuit master control switch 9 for controlling the current on the bus duct body 2. The circuit is connected.

The box body 1 is also provided with 4 guide rails 10 for connecting and fixing. The guide rails 10 are vertically placed and connected and fixed with the rear side plate of the box body 1. The guide rails 10 are provided with card slots; the current monitoring device 4 is installed in the middle of the guide rails 10 , The circuit breaker 5 and the surge protector 6 are installed on the guide rails 10 on the left and right sides of the current monitoring device 4 respectively, and the above-mentioned devices are fixed in the slots on the guide rail 10 by cooperating bolts and nuts.

The cover plate 8 of the box body 1 is provided with a monitoring display 7 electrically connected to the current monitoring device 4. The monitoring display 7 can directly display the changes of data such as current and voltage inside the bus duct on the display screen, and can store Certain records can be read and observed by operating the monitoring display 7; the lower edge of the monitoring display is connected to the front cover through hinges, and the monitoring display can be turned outwards from 0° to 45°. The monitoring display 7 is turned outwards, which is convenient for the staff to check the data on the monitoring display 7 on the ground. In this embodiment, the outward turning angle of the monitoring display 7 is 30°.

During use, the three-phase four-wire circuit in the bus duct is connected to the current monitoring device 4, the circuit breaker 5 and the surge protector 6, and the current and voltage changes in the bus duct are recorded by the current monitoring device 4 and displayed on the monitor display 7, and the monitoring display 7 can be operated to check the current and voltage changes within a certain period of time, analyze it and judge the safety status of the current in the branch bus duct, and if necessary, open the cover 8 and manually operate the circuit master Control switch 9 cuts off the current on the entire branch busway; when there is a large value current such as a short circuit, the circuit breaker 5 automatically disconnects the circuit where the current is located to protect other equipment and avoid high current heating and fire. After the surge protector 6 is aged or damaged, quickly cut off the connection between the surge protector 6 and the main circuit, so as to avoid causing other faults; Turn on the shunt in a short time, absorb high voltage and energy, and protect other components in the bus duct and various electrical equipment used in connection.

Finally, it is noted that the above embodiments are only used to illustrate the technical solutions of the present utility model without limitation. Although the utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the utility model can be Modifications or equivalent replacements of the technical solutions without departing from the purpose and scope of the technical solutions of the utility model shall be covered by the claims of the utility model.

Claims (6)

1. a kind of port case for bus duct, including the casing being connected with the end of bus duct cell body, it is characterised in that：It is described Conductor switching device, current monitoring device, breaker protector and Surge Protector, the conductor switching device are provided with casing Input be connected with the end of bus duct cell body, the test side of the current monitoring device and the three-phase input of breaker protector End is sequentially connected by the three-phase output end of wire and conductor switching device, and the three-phase output end of breaker protector passes through wire It is connected with the three-phase input end of Surge Protector, the neutrality of the conductor switching device, breaker protector and Surge Protector is public End is sequentially connected in series altogether.

A kind of 2. port case for bus duct as claimed in claim 1, it is characterised in that：It is provided with and is used in the casing The guide rail being connected, the guide rail are placed and are connected with the back side panel of casing vertically, and neck is provided with the guide rail.

A kind of 3. port case for bus duct as claimed in claim 2, it is characterised in that：The current monitoring device installation In the middle part of guide rail, the breaker protector and Surge Protector are separately mounted on the guide rail at left and right sides of current monitoring device, on State device by with the use of screw bolt and nut be fixed in the neck on guide rail.

A kind of 4. port case for bus duct as claimed in claim 1, it is characterised in that：Set in the casing front cover plate Monitor display is equipped with, the monitor display is electrically connected with current monitoring device.

A kind of 5. port case for bus duct as claimed in claim 1, it is characterised in that：On the current monitoring device also It is provided with the circuit master control switch for controlling the bus duct cell body to connect.

A kind of 6. port case for bus duct as claimed in claim 4, it is characterised in that：The monitor display lower edge is led to Cross be hinged mode to be connected in front cover plate, monitor display can flip over 0 °~45 °.