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Current-voltage measuring device

A measuring device, current and voltage technology, applied in the direction of measuring device, measuring device casing, electric power measurement through current/voltage, etc., can solve the problems that the devices cannot be close to each other, insufficient space saving, etc., to avoid interference, Excellent space-saving effect

Inactive Publication Date: 2019-03-15
MITSUBISHI ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Therefore, considering the case of arranging the terminal blocks vertically, for example, even if a technique such as changing the height of adjacent terminal blocks is used (for example, refer to Patent Document 2), there will be problems due to the housing and wiring of adjacent equipment. Interference occurs, and it is not possible to make the equipment close to each other until it is close to each other
That is, it is not sufficient for space-saving when a plurality of devices are arranged in a row in a board

Method used

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Examples

Experimental program
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Effect test

Embodiment approach 1

[0036] Figure 1 to Figure 7 It is a diagram for explaining the configuration of the current-voltage measuring device according to Embodiment 1 of the present invention. figure 1 It is a perspective view showing a state in which the current and voltage measuring devices are installed in the board for explaining the structure of the front portion of the terminal block on which the current and voltage measuring devices are arranged, which are the characteristic parts of the present invention. figure 2 and image 3 are the front view and bottom view of the current and voltage measuring device, respectively, Figure 4 It is a plan developed view showing a state in which two circuit boards constituting the current and voltage measuring device are developed on one plane.

[0037] in addition, Figure 5 It is a perspective view for explaining the internal structure of the current and voltage measuring device, for each step when assembling the circuit board to the base of the case...

Embodiment approach 2

[0063] In the first embodiment described above, a device called an inverter that converts the calculated measurement value into a DC current or a voltage and outputs it has been described. In Embodiment 2, a current and voltage measuring device called a built-in watt-hour meter is described, which inputs the current and voltage of the target circuit, and converts the integrated electric energy value, which is the calculation result in the internal circuit, into pulses and outputs them.

[0064] Figure 8 ~ Figure 12 It is a diagram for explaining the configuration of the current-voltage measuring device according to Embodiment 2 of the present invention. Figure 8 It is a perspective view and a side view showing a state in which the current and voltage measuring devices are installed in the board for explaining the structure of the rear portion of the terminal block on which the current and voltage measuring devices are arranged. Figure 9 are the front view and the right sid...

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Abstract

An object of the present invention is to provide a current-voltage measuring device which is excellent in space saving when a plurality of devices are arranged in a panel. In a front face (2f) havingterminal blocks (3) and (4) of a housing (2) are arranged, in the installed state, the two terminal blocks (3) and (4) are arranged as a plurality of terminals (32), (42) arranged in the vertical direction (y direction) and spaced in parallel in the horizontal direction (x direction), the first terminal block (3) of the two terminal blocks protrudes outwardly much more than the second terminal block (4) in a direction (z direction) perpendicular to the installation surface of the panel, and the portion from the first terminal block (3) to the outside in the front surface (2f) and in the horizontal direction (x direction) is a step surface (2f1) that recesses inwardly in the direction (z direction) perpendicular to the installation surface compared with the portion (a configuration surface(2f2)) provided with the first terminal block.

Description

technical field [0001] The invention relates to a current and voltage measuring device arranged in a panel to measure current and voltage. Background technique [0002] The current and voltage measuring device calculates the measured values ​​required to evaluate power, phase, etc. for the input of current and voltage flowing in the wiring, and converts them into DC currents, voltages, etc. that are proportional to the measured values ​​and outputs them. Specifically, For example, it is equivalent to equipment such as converters and watt-hour meters. In such current and voltage measuring devices, such as converters and built-in watt-hour meters, devices of the type arranged in a row in panels such as switchboards and control panels are required to be compact due to space constraints. [0003] In particular, in the case of using an IEC rail (International Electrotechnical Commission standard rail) also called a DIN rail as a method of mounting to a board, the lateral dimensi...

Claims

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Application Information

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IPC IPC(8): G01R1/04
CPCG01R1/0408G01R1/0416G01R11/04G01R21/06H01R9/2408H01R9/2425
Inventor 加藤优一铃木健一郎
Owner MITSUBISHI ELECTRIC CORP