CN203241444U - Line fault detection terminal block - Google Patents

Abstract

The utility model relates to a terminal block used for electrical equipment, in particular to a line fault terminal block, which includes two terminal blocks arranged in a housing, a current detection chip and a data display module, and two connection terminals of the current detection chip. The terminals are respectively connected to two binding posts, the output terminal of the current detection chip is connected to the input terminal of the data display module, and the data display module is installed on the housing. The specific model of the current detection chip is MAX472. In order to solve the problem that short circuit, open circuit, grounding, virtual connection and other faults in the wiring of electrical equipment are not easy to be found, the utility model provides a line fault detection terminal block, which facilitates the staff to find faults, And deal with the fault in time to ensure the normal operation of the equipment.

Description

Line fault detection terminal block

technical field

The utility model relates to a terminal block for electrical equipment, in particular to a line fault terminal block.

Background technique

There are many and intricate wiring lines in the control circuit of electrical equipment, and the wiring distance is different. Therefore, terminal blocks are often used in wiring. As shown in Figure 1, there are two terminal blocks 1 inside the shell of the terminal block, and two Wires are also connected between the terminal posts 1. After the two terminal posts of the terminal block are connected to the wiring ports 2 and two different devices connected to each other, the two different device lines are connected; the terminal block The function is to connect the lines of different electrical equipment to transmit voltage or current, and also to make the wiring between electrical equipment beautiful. Open circuit, grounding, virtual connection and other faults, and these faults are troublesome to find, and the line fault cannot be removed in time, so that the electrical equipment cannot work normally.

Contents of the invention

The utility model provides a line fault detection terminal block in order to solve the problem that it is not easy to find faults such as short circuit, open circuit, grounding, and false connection in the wiring lines of electrical equipment.

The utility model is realized by adopting the following technical scheme: the line fault detection terminal block includes two terminal posts arranged in the casing, includes a current detection chip and a data display module, and the two terminals of the current detection chip are respectively connected to two The terminal is connected, the output end of the current detection chip is connected with the input end of the data display module, and the data display module is installed on the housing.

When in use, the two terminals in the line fault detection terminal block are respectively connected in series to the control circuit to complete the connection to a certain circuit; if a short circuit fault occurs in the connection line, the data displayed on the terminal block will The current value changes from small to large; if there is an open circuit fault in the line, the current value displayed on the data display module on the terminal block is zero; if a ground fault occurs in the line, the current value displayed on the data display module on the terminal block becomes large; If there is a virtual connection fault in the line, the current value displayed on the data display module on the terminal block will fluctuate from large to small; on-site technicians can deal with the line according to these different situations, which facilitates the search for faults in the line . The aforementioned current detection chip is well known to those skilled in the art.

In the above line fault detection terminal block, the type of the current detection chip is MAX472, which has high current detection sensitivity and improves the efficiency of fault finding.

In order to solve the problem that short circuit, open circuit, grounding, virtual connection and other faults in the wiring of electrical equipment are not easy to be found, the utility model provides a line fault detection terminal block, which facilitates the staff to find faults, And deal with the fault in time to ensure the normal operation of the equipment.

Description of drawings

FIG. 1 is a schematic diagram of the internal structure of an existing terminal block.

Fig. 2 is a top view of an existing terminal block.

Fig. 3 is the internal structure diagram of the utility model.

Fig. 4 is a schematic diagram of the data display module.

In the figure: 1-terminal post, 2-connection port, 3-current detection chip, 4-data display module.

Detailed ways

The line fault detection terminal block includes two terminal posts 1 arranged in the housing, including a current detection chip 3 and a data display module 4, and the two terminals of the current detection chip 3 are respectively connected to the two terminal posts 1, and the current detection chip The output end of 3 is connected with the input end of the data display module 4, and the data display module 4 is installed on the casing. For the above line fault detection terminal block, the type of the current detection chip 3 is MAX472. During specific implementation, a socket is opened on the shell of the terminal block, and the fixing legs of the data display module are inserted into the socket. the

Claims (2)

1. the line fault detection terminal is arranged, comprise two binding posts (1) that are arranged in the housing, it is characterized in that comprising current detecting chip (3) and data disaply moudle (4), two terminals of current detecting chip (3) respectively with are connected a binding post (1) and connect, the output terminal of current detecting chip (3) is connected 4 with data disaply moudle) input end connect, data disaply moudle (4) is installed on the housing.

2. line fault detection terminal row according to claim 1 is characterized in that described current detecting chip (3) model is MAX472.

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