CN203800404U - DC power distribution box - Google Patents

Abstract

A DC power distribution box, including a box body and a box door, and a voltmeter, an ammeter, a fuse, a shunt, an air switch, an optocoupler lamp board, and a working ground wiring copper bar arranged in the box; one end of the fuse is It is connected to the negative terminal of the -48V power supply, and the other end is connected to the air switch connected to the load through a shunt. The working ground wiring copper bar is connected to the positive terminal of the -48V power supply and the load respectively; the voltmeter and ammeter are set on the box door, and the voltmeter is connected between the negative terminal and the positive terminal of the -48V power supply , the ammeter is connected across the shunt. On the basis of providing DC working power for the load, the utility model can not only provide intuitive current and voltage indications for the user's management and maintenance, but also provide on-off status of each branch according to the needs of the user.

Description

A DC distribution box

technical field

The utility model relates to the technical field of distribution boxes, in particular to a DC distribution box.

Background technique

At present, DC power distribution cabinets are widely used in various fields. DC power distribution cabinets can divide the total input DC power into multiple channels according to the number of loads, and each load has an independent protection device and lightning protection. Devices, etc., and some DC power distribution cabinets can monitor the voltage and current of each load in real time and perform remote communication. The main function of the DC power distribution cabinet is to distribute, monitor and protect DC power, provide stable and reliable DC power for various electrical devices, and provide intuitive current and voltage indications for the use, management and maintenance of users. According to the needs of users, the on-off status of each load and the sound and light alarm indication can be provided.

However, some occasions require less DC equipment, such as communication base stations and other small computer room equipment, which need to provide less branch current. If DC power distribution cabinets are used, unnecessary waste will be caused, so a small DC power distribution cabinet is required. Power distribution equipment.

Utility model content

In view of the above shortcomings, the utility model provides a miniaturized DC power distribution box.

The technical scheme adopted by the utility model to solve the technical problem is: a DC power distribution box, including a box body and a box door, and the box door is connected with the box body through an electric control lock, and is characterized in that it also includes a The voltmeter, ammeter, fuse, shunt, air switch, optocoupler lamp board and working ground wiring copper bar; one end of the fuse is connected to the negative terminal of the -48V power supply, and the other end is connected to the air with load through the shunt. Switch connection, the air switch is provided with an optocoupler lamp board, and the optocoupler lamp board is provided with on-off indicator lights connected to both ends of the air switch; Load connection; the voltmeter and ammeter are arranged on the box door, the voltmeter is connected between the negative terminal and the positive terminal of the -48V power supply, and the ammeter is connected at both ends of the shunt.

As a preferred solution, a protective ground wiring copper bar is also arranged in the box.

As a preferred solution, one end of the box door is connected to the box body through a rotating shaft, and the corresponding other end is connected to the box body through an electric control lock; A deadbolt hole is arranged at the corresponding position of the tongue.

The beneficial effects of the utility model are: on the basis of providing DC working power for the load, the utility model can not only provide intuitive current and voltage indications for the management and maintenance of users, but also provide on-off switching of each branch according to the needs of users. Condition. The utility model has the characteristics of miniaturization, which can meet the requirements of occasions with relatively few direct-current equipment and avoid waste.

Description of drawings

Fig. 1 is the front appearance view of the utility model;

Fig. 2 is a schematic diagram of the internal structure of the utility model;

Fig. 3 is the circuit principle diagram of the present utility model;

In the figure, 1 box body, 2 box door, 3 rotating shaft, 4 electric control lock, 5 bolt hole, 6 voltmeter, 7 ammeter, 8 fuse, 9 shunt, 10 air switch, 11 optocoupler light board, 12 On-off indicator light, 13 working ground wiring copper bars, 14 protective ground wiring copper bars.

Detailed ways

In order to clearly illustrate the technical features of this solution, the utility model will be described in detail below through specific implementation methods and in conjunction with the accompanying drawings.

As shown in Figures 1 to 3, a DC power distribution box of the present utility model includes a box body 1 and a box door 2, one end of the box door 2 is rotationally connected with the box body 1 through a rotating shaft 3, and the corresponding other end The electric control lock 4 is connected with the box body 1; the electric control lock 4 is arranged inside the box door 2, and a bolt hole 5 is arranged on the box body 1 corresponding to the electric control lock bolt.

The DC power distribution box of the present utility model also includes a voltmeter 6, an ammeter 7, a fuse 8, a shunt 9, an air switch 10, an optocoupler lamp board 11 and a working ground wiring copper bar 13 arranged in the box body 1; One end of the fuse 8 is connected to the negative terminal of the -48V power supply, and the other end is connected to the air switch 10 connected to the load through the shunt 9. The air switch 10 is provided with an optocoupler lamp board 11, and the optocoupler lamp board 11 There are on-off indicator lights 12 connected to both ends of the air switch 10; the working ground wiring copper bars 13 are respectively connected to the positive terminal of the -48V power supply and the load; the voltmeter 6 and the ammeter 7 are arranged on the box door 2, The voltmeter is connected between the negative terminal and the positive terminal of the -48V power supply, and the ammeter is connected to both ends of the shunt to provide intuitive current and voltage indications.

A protective ground wiring copper bar 14 is also provided inside the box body 1 for grounding protection.

As a small DC distribution equipment, the utility model has the following functions:

(1) Current distribution: distribute the total current so that the current of each branch can meet the equipment requirements;

(2) Total insurance over-current protection: provide over-current protection to provide security for the user's equipment;

(3) Voltage and current indications: provide intuitive voltage and current indications for easy management and maintenance;

(4) On-off status indication of the shunt: Provide an intuitive on-off status indication of the shunt power supply, which is convenient for troubleshooting.

Except the structure described in the utility model, all the other are prior art.

The above is only a preferred embodiment of the utility model, and for those of ordinary skill in the art, without departing from the principle of the utility model, some improvements and modifications can also be made, and these improvements and modifications are also regarded as It is the protection scope of the utility model.

Claims (3)

1. a DC distribution case, comprises casing and chamber door, and described chamber door connects with casing by electric control lock, it is characterized in that, also comprises the voltmeter, ammeter, fuse, shunt, air switch, optocoupler lamp plate and the place of working copper busbar that are arranged in casing; Described fuse one end is extremely connected with-48V power-, the other end by shunt be connected loaded air switch and connect, on described air switch, be provided with optocoupler lamp plate, on described optocoupler lamp plate, be provided with the break-make indicator light that is connected to air switch two ends; Described place of working copper busbar is connected with load with-48V power positive end respectively; Described voltmeter and ammeter are arranged on chamber door, and be connected to-48V of described voltmeter power-extremely and between positive terminal, described ammeter is connected to shunt two ends.

2. a kind of DC distribution case according to claim 1, is characterized in that, is also provided with protection ground copper busbar in described casing.

3. a kind of DC distribution case according to claim 1 and 2, is characterized in that, described chamber door one end connects with casing by rotating shaft, and the corresponding other end connects with casing by electric control lock; Described electric control lock is arranged on chamber door inner side, on casing, is provided with dead bolt hole with electric control lock dead bolt correspondence position.