KR20100045143A - Watt hour meter for adapter - Google Patents

Abstract

PURPOSE: A watt hour meter for an assembly is provided to reduce an installation time and costs and minimize inconvenience of a user by preventing power cutoff when the watt hour meter is separated from an adaptor. CONSTITUTION: A front cover is combined with a watt hour meter base. A terminal cover is attached to the watt hour meter after a watt hour meter modem is mounted. A watt hour meter CT cover is mounted inside the watt hour meter base. If the watt hour meter is completely assembled, a seal screw(60) seals the watt hour meter.

Description

Watt hour meter for adapter that does not cut off the electricity supply

The present invention relates to a power meter for assembly that does not block the electricity supply, to minimize the inconvenience of the user by preventing the power is disconnected when the electricity meter and the adapter is disconnected, and dramatically reduce the construction time and cost to improve the work convenience of the operator On the other hand, the present invention relates to a power meter for an adapter that can reduce the risk of electric shock and the like.

The electricity meter is installed in homes, factories and buildings to measure and record the total amount of power used for a certain period of time. It is connected in series with a power line to measure the power used by receiving voltage and current from the power line.

When an error occurs in the electricity meter and needs to be replaced or collected for periodic inspection, the power supply is completely shut off to prevent safety accidents before construction, and the incoming and outgoing wires of the electricity meter are removed from the terminals. After that, the electricity meter is replaced.

As the power supply is completely cut off when the electricity meter is replaced as described above, the customer does not receive power while the electricity meter is replaced. In addition, the power provided to the user is cut off, but since the power is flowing in the incoming wire that was connected to the electricity meter, an accident may occur if the worker accidentally touches the incoming wire during the operation. In addition, since the incoming wires and the outgoing wires must be removed from the electricity meter terminal one by one, not only the work time is prolonged but also the work is cumbersome and difficult.

An object of the present invention is to provide a concise and robust assembly method when assembling a plurality of terminal pins and a flow measurement CT connecting the power supply side and the load side when manufacturing the electricity meter for the adapter, so that the electricity meter cannot be changed at any time when the electricity meter is installed in the adapter. By providing a sealing structure to improve the work convenience of the worker during the manufacture and installation of the electricity meter and to provide a power meter that can be used safely and securely.

The wattmeter for the adapter according to the present invention for achieving the above object is coupled with the adapter, the plurality of terminal pins of the wattmeter are electrically connected or interrupted by sliding on the power supply side and the load side terminal of the adapter in which the plural terminal slots are formed. And a device capable of sealing a fixed position upon connection.

The plurality of terminal pins of the watt-hour meter is formed of ten terminal pins including power supply side terminal pins (3), load side terminal pins (3), common terminal pins (1), and test terminal pins (3). Connect to the respective connection position through the sliding groove of the adapter. At this time, the position and right angle of the terminal pin are very important because they are connected by sliding to the groove of the adapter. If the pin's position or right angle is not accurate, it may not be connected or bad contact may occur, so it has a structure that can maintain the right angle to the position of the terminal pin when assembling the power meter.

To connect the electricity meter to the adapter, turn the sealing bolt to the right so that it does not protrude on the bottom, and slide it downward to rotate the sealing bolt 90 degrees to the left. It is fixed and sealed with a sealing line.

By using the above-described adapter electricity meter according to the present invention, the instrument can be replaced in an uninterrupted state in a short time without interrupting power when replacing the electricity meter, thereby increasing service quality for customers and significantly reducing construction costs. In case of replacement, it can improve worker's safety and work convenience.

In addition, when installing the electricity meter, problems such as deterioration of workability due to complicated wiring work, risk of electric shock by the installer, increase in cost of installation cost, and waste of resources due to installation after power off can be effectively solved.

In particular, when the meter is removed or installed, the power is bypassed through the adapter to prevent the occurrence of arcs due to the opening and closing overload when the meter is separated or combined, thereby reducing the damage of the terminal or the electric shock to the instrument. In addition, it is economically more stable since power cannot be supplied to the load side without removing the seal after installation of the electricity meter.

The present invention will be described in more detail based on the accompanying drawings as follows. In the following description of the present invention, detailed descriptions of well-known functions or configurations will be omitted if it is determined that the detailed description of the present invention may unnecessarily obscure the subject matter of the present invention. And the following terms are terms defined in consideration of functions in the present invention, which may vary according to the intention or custom of the user, operator, etc. Accordingly, the meaning of each term should be interpreted based on the contents throughout the present specification. will be.

1 is a perspective view of a wattmeter for an adapter according to the present invention, Figure 2 is a perspective view of the rear of the wattmeter, Figure 3 is a perspective perspective view of Figure 1, Figure 4 is a projection perspective view of the power meter is mounted on the adapter.

The electricity meter 100 may be detachably attached to and contacted with the adapter front case, and a plurality of terminal pins 110 and a hook ring 115 for attaching the electricity meter to the adapter are protruded from the rear of the electricity meter. The hook is made in a "-" shape that is bent toward the lower back of the meter. Accordingly, when the meter is coupled with the adapter, if the hook ring passes through the hook groove of the adapter, the meter is pressurized to one side along the direction of the adapter front case plate so that the hook hook is caught in the hook groove.

The power meter includes a front cover 10 in FIG. 5, a terminal cover 20 in FIG. 6, a power meter base 30 in FIG. 7, a power meter CT cover 40 in FIG. 8, and a sealing screw 60 in FIG. 9. do.

The front cover 10 is coupled to the electricity meter base 30, and the terminal cover 20 is a cover attached to the electricity meter after mounting the electricity meter modem.

The electricity meter CT cover 40 is mounted in the electricity meter base 30.

When the assembly of the electricity meter is completed through the above process, the sealing of the electricity meter is completed through the sealing screw 60.

The case of coupling or detaching the assembled power meter to the adapter will be described. Figure 2 is a perspective view showing a plurality of terminal pins on the back of the electricity meter, corresponding to the insertion groove is provided in the adapter, Figures 12 to 15 shows a plurality of terminal pins on the back of the electricity meter.

FIG. 12 is a power meter load terminal pins (3L, 2L, 1L), FIG. 13 is a power supply side terminal pins (3S, 2S, 1S), FIG. 14 is a power meter common terminal pin (P0), FIG. 15 is a power meter test Terminal pins P1, P2, and P3 are shown.

Next, an electrical connection state between the plurality of terminal pins of the electricity meter of FIG. 2 and each of the power supply side terminal insertion grooves and the load side terminal insertion grooves of the adapter is as follows.

First, when the electricity meter is coupled to the adapter, the electricity meter is in close contact with the adapter front case so that each terminal pin and the hook ring 115 of the electricity meter shown in FIG. 2 are inserted into the terminal slot and the locking groove of the front case of the adapter, respectively. At this time, the terminal pin of the electricity meter passes through the pin hole of the electricity meter moving plate and is accommodated in the adapter.

When the electricity meter is separated from the adapter, the adapter moving plate moves in the same direction as the electricity meter by the terminal pin of the electricity meter, and the electricity meter terminal pins are the power supply terminals 3S, 2S and 1S and the load side terminals 3L, 2L and 1L. Depart from Pull the meter in this state to disconnect it from the adapter.

Next, a description will be given of the sealing structure configured so that the power meter can not be removed arbitrarily according to the present invention when the adapter and the electricity meter are assembled.

9 is a perspective view of the sealing screw for sealing between the electricity meter and the adapter. 10 is a perspective view showing that the sealing structure according to the present invention is configured from one side in the state in which the adapter and the electricity meter are coupled. The sealing structure has a groove into which a sealing screw can be inserted into one side of the electricity meter, and a groove is formed in one side of the adapter corresponding to this position. Since the adapter has a threaded groove so that the sealing screw 60 can be screwed together as a sealing bar, the adapter and the electricity meter are more firmly assembled by assembling the power meter into the adapter and inserting the sealing screw 60 into the groove to tighten the screw. Combination is possible. As such, after coupling the power meter and the adapter, the fixing screws are fixed through the sealing screw. At this time, the upper part of the sealing screw has a small hole 61 to seal the sealing line 62, and the power meter cannot be arbitrarily removed from the adapter.

1 is a perspective view of a power meter for an adapter according to the present invention.

2 is a rear perspective view of the electricity meter.

3 is a perspective perspective view of FIG. 1;

Figure 4 is a perspective view of the electricity meter for the adapter equipped with a meter in the adapter.

5 is a perspective view of a power meter front cover for an adapter;

Figure 6 is a perspective view of the power meter terminal cover for the adapter.

7 is a perspective view of a power meter base for an adapter.

8 is a perspective view of a power meter CT cover for an adapter.

9 is a perspective view of a power meter sealing screw for the adapter.

Figure 10 is a perspective view of the sealing screw position when mounting the wattmeter and the adapter.

11 is a perspective view according to the installation of the electricity meter sealing line.

12 is a power meter load terminal pin.

13 is a power supply side terminal pin.

14 is a common terminal pin for a power meter.

15 is a terminal pin for the wattmeter test.

-Explanation of the symbols for the main parts of the drawings-

One; adapter

10; Front cover

20; Terminal cover

30; Power meter base

40; Wattmeter CT Cover

60; Sealing screw

62; Seal

100; Power meter

Claims (3)

An electricity meter provided with a terminal pin on the back, and an adapter provided with a terminal groove corresponding to the terminal pin of the electricity meter, each terminal pin of the electricity meter combined with the CT to protrude to the back of the electricity meter to each terminal of the adapter A sliding meter coupled to the groove, and further comprises a sealing structure that can seal the adapter and the adapter coupled when connected, power meter for the adapter. 2. The adapter according to claim 1, wherein the power supply side terminal pin, the load side terminal pin, the common terminal pin, and the test terminal pin of the wattmeter are integrally fixed together with the CT to maintain the pin position and right angle. Power meter. The power meter of claim 1, wherein the sealing structure includes a structure that uses a sealing bar at a connection position with the adapter, rotates, and protrudes to fix the groove into the groove of the adapter.

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