JP2003248020A - Watthour-meter bypass connector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a watthour-meter bypass connector which improves operation at a site, by attaching a simple device and by which a watthour meter can be replaced or a wireless remote manipulator can be removed in a short time and simply. <P>SOLUTION: In the wireless remote manipulator B, a make-and-break mechanism which receives wireless waves from a wireless device and which makes and breaks an electrical circuit to an output side from an input side is installed in the inside. The bypass connector C is constituted of a connector main frame 1a, provided with a plurality of pairs of terminal fittings 4 and so on, which comprise connecting terminals 2a and so on, 2b and so on connected to connection parts 22a and so on, 22b and so on at the manipulator B; and connection parts 20a and so on, 20b and so on at the watthour meter A so as to be freely detachable on their upper ends and which comprise wire connection parts 3a, 3b and so on used to connect wires 14a and so on from the outside and wires 14b and so on to the inside of a room on their lower ends; and a bypass tool 1b, which is attached to be connector mainframe 1a so as to be freely detachable and which is operated so as to short-circuit or so as not to short-circuit same poles of the terminal fittings 4. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bypass connector attached to an electric energy meter for measuring the amount of electric power used.

[0002]

2. Description of the Related Art The amount of electric power used in homes and business establishments is measured by a watt-hour meter installed individually at each house and business establishment, and the electricity charges are paid to the electric power company based on this data. There is. Therefore, this watt-hour meter must always be able to accurately measure the amount of electric power without malfunction.
And it must be able to maintain accuracy. Therefore, the electricity meter is replaced with a new one in a cycle of about 10 to 15 years.

However, at the time of this replacement or repair, the external electric wire connected to the watt-hour meter and the internal electric wire for drawing in the room must be removed, and the external electric wire is a live wire, which is dangerous. Since it is necessary to insulate each line so that it does not occur, it takes a considerable amount of time, and a power outage of several tens of minutes or more has been forced, which is very annoying to the power user. In particular, not only in the office but also in general households, if you are using a personal computer, etc. for network communication with the outside, or if you have various time-set devices, replace this watt-hour meter. The burden of time and power outages for repairs is by no means small.

Further, power transmission is suspended for a certain period of time to users who do not pay the power charge, and power is transmitted immediately after the deposit. In this case, since many workers are dispatched at night for construction to stop or restart power transmission, personnel costs and various expenses are high, so PH
A wireless remote control device is attached to the watt hour meter of a user who seems to be required so that power transmission can be stopped or restarted by a wireless device such as S. Since this wireless remote control device is relatively expensive, when it is determined that it is not necessary, it is detached and attached to another user's electricity meter which seems to be necessary. However, when the wireless remote control device is attached to or removed from the watt hour meter, a power outage of the required time is inevitably inevitable as described above.

[0005]

SUMMARY OF THE INVENTION Therefore, according to the present invention, by installing a simple device, the work at the site can be greatly improved, and the watt-hour meter can be easily replaced or the wireless remote control device can be operated in a short time. The main purpose is to provide a power meter bypass connector that can be attached and detached.

[0006]

In order to achieve the above object, the present invention takes the following technical means. That is, in the electricity meter bypass connector according to the present invention, the wireless remote control device B detachably attached to the electricity meter A.
And the wireless remote controller B and the wireless remote controller B
And a bypass connector C which is detachably attached to the watt-hour meter A when removed, and the wireless remote control device B receives an electric wave from a wireless device and receives an electric circuit from an input side to an output side. , 22b ... and the connection parts 20a ..., 20b ... of the watt-hour meter A are detachably connected to the bypass connector C. .., 2b .. at the upper end, and electric wires 14a ..
And an electric wire connecting portion 3 for connecting the electric wire 14b to the room.
Connector body 1a provided with a plurality of pairs of terminal fittings 4 having a, 3b ... At the lower end, and a bypass detachably attached to the connector body 1a for short-circuiting and non-short-circuiting the same poles of the terminal fitting 4 The structure is composed of the tool 1b.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The rod-shaped connection terminals 2a ..., 2b ... of the bypass connector C have flat contact surfaces 2 on their peripheral side surfaces.
3, and the connection portions 22a ..., 22b ... of the wireless remote controller B for receiving the rod-shaped connection terminals 2a.
, The flat contact surface 2 of the rod-shaped connection terminals 2a ..., 2b.
It is preferable to have a structure in which a contactor 24 made of a conductor leaf spring which is elastically pressure-contacted by a surface contact or a line contact is provided on the surface 3.

Further, an opening 5 is provided on the surface of the connector main body 1a for connecting the following connector 7 to each terminal fitting 4, and the bypass tool 1b has terminals of the same polarity housed in the connector main body 1a. It is preferable to have a structure in which a plurality of connectors 7 that short-circuit and non-short-circuit the metal fittings 4 and a moving means 8 that moves the connectors 7 to the short-circuit position and the non-short-circuit position are provided.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 7 show an embodiment of a watt hour meter bypass connector according to the present invention,
Reference numeral A indicates a watt hour meter. This watt-hour meter A is the same as that installed in a general home or business establishment, and the rod-shaped connection terminals 21a, ...
1b ... three input side terminal connection parts 20a ...
And three output side terminal connection parts 20b ...

Reference numeral B denotes a wireless remote control device, which has three input side rod-shaped connection terminals 2 which are respectively connected to the input side terminal connection portion 20a and the output side terminal connection portion 20b of the electricity meter A.
1a and three output side rod-shaped connection terminals 21b are provided at the upper end, and three input side terminal connection portions 22a are provided at the lower end to receive rod-shaped connection terminals 2a ... The output-side terminal connection portions 22b ... Are provided. In addition, an opening / closing mechanism (not shown) for opening and closing an electric circuit from the input side to the output side by receiving radio waves from a wireless device such as PHS is provided inside.

Reference numeral C denotes a bypass connector, which comprises a connector body 1a and a bypass tool 1b which is detachably attached to the connector body 1a. The connector body 1a includes rod-shaped connection terminals 2a ..., 2b ... Connected to the input side terminal connection portions 22a ... And the output side terminal connection portions 22b.
, 3b ... which have electric wires at the upper end and which connect electric wires
It has three pairs of terminal fittings 4 ... Each of the terminal fittings 4 is divided into three pairs on the output side and the input side in an insulated state, and the wire connecting portions 3a ...
Input wires 14a ... And output wires 14b ...
Are connected.

On the surface of the connector body 1a are provided openings 5 ... For connecting the connectors 7 of the bypass tool 1b to the respective terminal fittings 4. When not in use, that is, as shown in FIGS. 1 to 3, the opening 5 is normally closed by a removable cover plate 16, and a closed position is held by a fixing screw 17.

The bypass tool 1b is used by being connected to the connector body 1a when required, and has three pairs of connections for short-circuiting and non-short-circuiting the terminal metal fittings 4 of the same polarity housed in the connector body 1a. .. and moving means 8 for moving the connectors 7 to the short-circuited position and the non-short-circuited position. The plurality of connectors 7 ... Are held by one insulating connector block 7a.

The moving means 8 for moving the connector block 7a shown in the embodiment together with the three pairs of connectors 7 ...
As shown in FIGS. 4 and 5, a cam 8b which rotates around a pivot 8a attached to the bypass tool 1b, an operation knob 8c for rotating the cam 8b, and the cam 8b which comes into contact with the cam 8b. It is formed by a floor 8d that moves the connectors 7 ... To the short-circuited position against the spring 9, and the operation knob 8c is a solution for locking the short-circuited position when the connectors 7 ... Are moved to the short-circuited position. Locking means 12 with a locking function is provided.

The above-mentioned locking means 12 has a pawl piece 12a pivotally supported by the operating knob 8c via a pivot shaft 8a, and a spring 1 for elastically pressing the pawl piece 12a outward, that is, in the engaging direction.
2c is formed so that when the operating knob 8c moves to the short-circuit position of FIG. 5, the tip of the claw piece 12a engages with the engaging portion 12d formed on the case of the bypass tool 1b to lock the short-circuit position. The lock is formed by pressing the claw piece 12a against the spring 12c.

The rod-shaped connection terminals 2a ..., 2b ... of the connector body 1a of the bypass connector C are provided with flat contact surfaces 23 on their peripheral side surfaces, and the rod-shaped connection terminals 2a.
2b ... Receiving the input-side terminal connection portions 22a ... And output-side terminal connection portions 22b .. Of the wireless remote control device B, the flat contact surfaces 23 of the rod-shaped connection terminals 2a. A contact 24 made of a conductor leaf spring is provided for making line contact.

In the above structure, as shown in FIG.
A wireless remote control device B is attached to the watt-hour meter A of a user who seems to be necessary, and only the connector body 1a of the bypass connector C is attached to the wireless remote control device B to connect the external input side electric wires 14a ... Output side electric wire 14
b ... is connected.

In this state, if power supply to the user is to be stopped, radio waves are transmitted from a radio such as PHS to open an electric circuit from the input side to the output side in the wireless remote control device B. The power transmission can be stopped by. Further, when it is desired to restart power transmission by depositing money, it can be quickly achieved by closing the electric circuit from the input side to the output side in the wireless remote control device B in accordance with an instruction from the wireless device.

When it is determined that the need for power transmission suspension has been eliminated due to the continuous stable deposit, the wireless remote control device B is removed. In this case, the fixing screw 17 of the connector body 1a in the bypass connector C is removed. Cover plate 1
By removing 6 and screwing the attachment screw 10 of the bypass tool 1b into the screw hole of the fixing screw 17, the bypass tool 1b is attached to the connector body 1a as shown in FIG. In this state, the operating knob 8c is operated to rotate the cam 8b, thereby moving the connector 7 toward the terminal fitting 4, as shown in FIG. 5, to short-circuit the terminal fittings 4 and 4 having the same polarity. By this short circuit, the electric power of the input side electric wires 14a ... Is temporarily diverted to the output side electric wires 14b. When this operation knob 8c moves to the short circuit position,
Engagement portion 12 in which the claw piece 12a is formed on the case of the connector C
Since the short-circuited position is locked by engaging with d, the work can be performed with peace of mind. After the work is finished, the claw piece 12a
Since the lock is released by pressing the lever against the spring 12c, the operating knob 8c can be returned to the non-short-circuited position.

By the above operation, the wireless remote control device B can be removed or attached without stopping the power supply. Similarly, by the above short-circuit operation,
Replacement of the watt-hour meter A and removal of the watt-hour meter A can be performed without power failure. After the work is completed, the bypass tool 1b may be removed from the connector body 1a and the cover plate 16 may be used to close the surface of the connector body 1a.

When the bypass connector C is attached to the wireless remote controller B, the contact 24 made of a conductive leaf spring is elastically attached to the flat contact surface 23 of the rod-shaped connecting terminals 2a, 2b, as shown in FIG. Since the pressure contact is performed by surface contact or line contact, stable conduction can be achieved without being affected by thermal expansion and contraction of the contact portion due to the amount of power consumption.

The above-mentioned electricity meter A, wireless remote control device B
The connecting portions of the bypass connector C, that is, the rod-shaped connecting terminals 2a ..., 2b .. , 6 are provided according to the number of the input / output electric wires 14a, 14b, but the input / output electric wires 14a, 14b are 100V.
In the case of a double line, the number of each of the above parts is naturally four.

In the above embodiment, the wireless remote control device B is used.
Input side terminal connection part 22a ... and output side terminal connection part 2
2b ... is provided with a contact 24 made of a conductor leaf spring that elastically makes surface contact or line contact with the flat contact surface 23 of the rod-shaped connection terminal. Of course, they may be provided in the terminal connecting portions 20a ... And the output side terminal connecting portions 20b.

The representative embodiments of the present invention have been described above. However, the present invention is not necessarily limited to the structures of the above embodiments, and is within the scope of having the constituent features of the present invention and being effective. Of course, it can be implemented by appropriately changing it.

[0025]

The electricity meter bypass connector of the present invention is
Since it is configured as described above, it is possible to easily form a short-circuit bypass electric circuit in the immediately preceding portion of the watt-hour meter by a simple operation, and the external electric wire and the internal electric wire are energized by this bypass electric circuit. As a result, there is a remarkable effect that the wireless remote control device can be attached or detached, or the watt-hour meter can be removed and replaced with a new one or repaired without stopping the power supply. Further, according to the structure of claim 3, since the contactor made of the conductor plate spring is elastically pressure-contacted with the flat contact surface of the rod-shaped connection terminal by surface contact or line contact, the contact portion depending on the amount of power consumption is There is an excellent effect that stable conduction can be achieved without being affected by thermal expansion and thermal contraction.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing an embodiment of a watt hour meter bypass connector according to the present invention, in which a bypass tool of the bypass connector is omitted.

FIG. 2 is a partial cross-sectional side view of the electric energy meter bypass connector when disassembled.

FIG. 3 is a partial cross-sectional side view of the electric power meter bypass connector when attached.

FIG. 4 is a vertical cross-sectional side view showing a non-short-circuited state of the bypass connector in the electricity meter bypass connector.

FIG. 5 is a sectional view similar to FIG. 4, showing a short-circuited state of the bypass connector in the electricity meter bypass connector.

FIG. 6 is a perspective view showing a connector body of the bypass connector.

FIG. 7 is a partial cross-sectional plan view of a bypass tool for the bypass connector.

[Explanation of symbols]

A electricity meter B Wireless remote control device C bypass connector 1a Connector body of bypass connector 1b Bypass connector bypass tool 2a, 2b Rod-shaped connection terminal of bypass connector 3a, 3b Electric wire connection part of bypass connector 4 terminal fittings 5 openings 7 connector 8 means of transportation 14a, 14b electric wire 20a, 20b Electric energy meter connection 21a, 21b Rod-shaped connection terminal of wireless remote control device 22a, 22b Connection part of wireless remote control device 23 Contact surface of rod-shaped connection terminal of bypass connector 24 Contact

Claims (3)

[Claims] 1. A wireless remote control device (B) detachably attached to an electric energy meter (A), the wireless remote control device (B), and the power when the wireless remote control device (B) is removed. It consists of a bypass connector (C) that is detachably attached to the quantity meter (A), and the wireless remote control device (B) receives an electric wave from a wireless device and connects an electric circuit from the input side to the output side. The opening / closing mechanism for opening and closing is built in, and the bypass connector (C) is connected to the connection portion (22a) of the wireless remote control device (B).
(22b) ... and the connecting portions (20a), (20b) of the watt hour meter (A) are detachably connected to the rod-shaped connection terminals (2a), (2b) ... Electric wire (14a) ... and indoor electric wire (14b)
A connector body (1a) provided with a plurality of pairs of terminal fittings (4) having electric wire connecting portions (3a), (3b), ...
A watt-hour meter bypass connector comprising a bypass tool (1b) detachably attached to the connector body (1a) for short-circuiting and non-short-circuiting the same poles of the terminal fitting (4). 2. The following connector is provided on the surface of the connector body (1a).
An opening (5) is provided for conducting the (7) to each terminal fitting (4), and the bypass tool (1b) includes the connector body.
A plurality of connectors (7) for short-circuiting and non-short-circuiting the terminal fittings (4) of the same polarity housed in (1a), and moving means for moving the connectors (7) to the short-circuit position and the non-short-circuit position ( 8) The electricity meter bypass connector according to claim 1, further comprising: 3. The rod-shaped connection terminals (2a) ..., (2b) of the bypass connector (C) are provided with flat contact surfaces (23) on their peripheral side surfaces, and the rod-shaped connection terminals (2a) ,. 2b) ... Accepting the wireless remote control device (B) connection parts (22a) ..., (22b) ...
A contact (2) made of a conductive leaf spring that elastically makes surface contact or line contact with the flat contact surface (23) of the rod-shaped connection terminals (2a), (2b).
The watt hour meter bypass connector according to claim 1 or 2, further comprising: 4).