JP2011242325A - Connector for terminal block separation type watt-hour meter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To allow voltage terminals and current terminals of a terminal block separation type watt-hour meter body and a power source part of a tester to be easily connected by a simple configuration.SOLUTION: A connector 10 for connecting voltage terminals 54a to 54c and current terminals 53a to 53d of a terminal block separation type watt-hour meter body 51 and a power source part of a tester for testing the electric performance of the watt-hour meter body 51 includes: voltage terminal connection parts 5a to 5c which are connected to a voltage circuit of the power source part, and are brought into contact with the voltage terminals 54a to 54c when the watt-hour meter body 51 is set to the connector 10; current terminal connection parts 8a to 8d which are connected to a current circuit of the power source part and are formed so as to be able to connect with and separate from the current terminals 53a to 53d; and a driving part comprising a cylinder 6 and a movable part 6m, which moves the current terminal connection parts 8a to 8d to press the current terminals 53a to 53d between the current terminal connection parts 8a to 8d and a partition 9 being an insulating tabular member and thus connects the current terminal connection parts 8a to 8d to the current terminals 53a to 53d.

Description

  The present invention relates to a structure of a connector for connecting an external terminal (voltage terminal, current terminal) of a terminal block separation type watt-hour meter main body and a power supply unit of a test apparatus for testing the electrical performance of the watt-hour meter main body. It is about.

  The watt hour meter can be divided into a terminal block integrated type and a terminal block separated type in relation to the terminal block and the watt hour meter main body. Here, when connecting the terminal block-integrated watt hour meter to the test apparatus via the wire connector and testing the electrical performance of the watt hour meter, for example, the wire wire device described in Patent Document 1 is used. It has been.

  The wire connector described in Patent Document 1 inserts a split terminal into a cylindrical current terminal arranged on the bottom surface (lower surface) of the watt hour meter, raises the push pin that moves up and down inside the split terminal, and opens the split terminal. Thus, the current is passed from the power supply unit of the test apparatus to the watt hour meter by contacting the current terminal. In addition, a voltage is applied to the watt hour meter from the power supply unit by moving the voltage external terminal back and forth in conjunction with the operation of the push pin.

JP 2008-185402 A (paragraphs [0023] to [0043], FIGS. 1 to 5 etc.)

The terminal block integrated watt-hour meter (hereinafter also simply referred to as the integrated watt-hour meter) and the terminal block separated watt-hour meter main body (also referred to as the separated watt-hour meter main body) have the structure and arrangement of each external terminal. Because of the difference, it is difficult to apply the connector as described in Patent Document 1 to the separable watt hour meter as it is.
Below, the external terminal structure in the separated watt-hour meter main body, and the problem in the case of connecting a wire-connector to the separated watt-hour meter main body will be described.

5A is a schematic front view of the terminal block separation type watt-hour meter 50, FIG. 5B is a bottom view (bottom view) of the watt-hour meter main body 51, and 52 is a terminal block 55 connected. Terminal block connection portions 53a to 53d are current terminals, and 54a to 54c are voltage terminals.
6A is a schematic front view of the terminal block integrated watt-hour meter 60, FIG. 6B is a bottom view (bottom view), 61 is a watt-hour meter body, and 62 is a watt-hour meter body. A terminal block integrally formed with 61, 63a to 63d are current terminals, and 64a and 64b are voltage terminals.

As shown in FIGS. 5 (a) and 5 (b), in the separated watt-hour meter main body 51, the current terminals 53a to 53d are generally formed in a flat plate shape, and the integrated type shown in FIGS. 6 (a) and 6 (b). Since the current terminals 63a to 63d of the watt hour meter 60 are not cylindrical, it is difficult to adopt an open / close structure using split terminals.
Further, the voltage terminals 54 a to 54 c of the separated watt hour meter main body 51 are not arranged on the side surfaces like the voltage terminals 64 a and 64 b of the integrated watt hour meter 60, but are arranged on the bottom surface of the watt hour meter main body 51. ing. Further, when the separated watt hour meter main body 51 is viewed from the front, the voltage terminals 54a to 54c are disposed behind (partly behind) the current terminals 53a to 53d. There is a problem that it is difficult to connect a wire connector to the terminals 54a to 54c.

  Therefore, the problem to be solved by the present invention is that the terminal block separation type watt-hour meter connection enables the voltage terminal and current terminal of the terminal block separation type watt-hour meter main body and the power supply unit of the test apparatus to be easily connected with a simple configuration. Is to provide a vessel.

In order to solve the above-mentioned problem, the invention according to claim 1 includes a voltage terminal and a current terminal of a terminal block separation type watt hour meter main body, a power supply unit of a test apparatus for testing the electrical performance of the watt hour meter main body, In the terminal block separation type watt-hour meter connector for connecting
A voltage terminal connection unit that is connected to the voltage circuit of the power source unit and that contacts the voltage terminal when the watt hour meter body is set in the connector;
A current terminal connection portion that is connected to the current circuit of the power supply unit, and that is formed so as to be able to contact and separate from the current terminal when the watt-hour meter body is set in the connector;
A drive unit for moving the current terminal connection part, press-contacting the current terminal between the current terminal connection part and an insulating plate member, and connecting the current terminal connection part and the current terminal; , With.

  According to a second aspect of the present invention, in the first aspect, a cover made of a transparent material that covers the current terminal connection portion is provided.

  According to a third aspect of the present invention, in the second aspect of the present invention, the rail-like supporter that supports the watt-hour meter main body is fixed to the upper end portion of the cover and is movable in the longitudinal direction of the supporter. The watt-hour meter main body is positioned and fixed by.

  According to a fourth aspect of the present invention, in any one of the first to third aspects, the voltage terminal connection portion is formed in a concave shape so as to conform to and contact a voltage terminal projecting from the watt-hour meter body. Formed.

  According to a fifth aspect of the present invention, in the fourth aspect, the planar shape of the voltage terminal connection portion is formed in an oval shape.

  According to a sixth aspect of the present invention, in any one of the first to fifth aspects, the end of the insulating plate member is subjected to a taper process for introducing a current terminal of the watt-hour meter. It is a thing.

  The invention according to claim 7 is the invention according to any one of claims 1 to 6, wherein the current terminal connection portion is formed wider than the current terminal of the watt-hour meter main body.

According to the first aspect of the present invention, the terminal block separation type watt-hour meter main body is set in the connection device, the voltage terminal of the watt-hour meter main body and the voltage terminal connection portion of the connection device are brought into contact with each other, and The current terminal of the watt hour meter main body and the current terminal connection portion of the connector can be brought into contact with each other by pressing the current terminal of the watt hour meter main body with the plate-like member by the current terminal connecting portion that moves by operation. it can.
Thus, a terminal block separation type watt-hour meter main body having a terminal structure in which a flat current terminal is provided and a voltage terminal is arranged behind the current terminal, the current terminal and the voltage terminal with a simple configuration. And the power supply unit of the test apparatus and the terminal block separation type watt-hour meter main body can be reliably connected via the connector according to the present invention.

According to the invention which concerns on Claim 2, the connection state of a current terminal connection part etc. can be confirmed from the exterior of a cover, and there is no fear that a user contacts the current terminal connection part etc. and is electrocuted.
Further, according to the invention according to claim 3, since the fixing position of the watt hour meter main body can be adjusted by moving the positioning fixing tool in the longitudinal direction of the rail-shaped support tool, the manufacturer, the rating, the shape of the terminal portion Thus, it is possible to obtain a connector that can also be used for various terminal block separated watt-hour meter bodies having different dimensions and the like.
In addition, when setting the watt hour meter main body, the watt hour meter main body or the current terminal has a positional relationship in which the support is interposed between the watt hour meter main body and the current terminal and the current terminal connection portion on the connector side. There is no risk of damaging the current terminal connection.

  According to the invention which concerns on Claim 4 or Claim 5, the voltage terminal of a watt-hour meter main body and the voltage terminal connection part of a connector are made to contact in a wide contact area, Moreover, the shape of the voltage terminal of a watt-hour meter main body Even when the dimensions and the like are slightly different, these voltage terminals can be adapted by the oval voltage terminal connection portion.

  According to the invention of claim 6 or claim 7, it is easy to introduce the current terminal of the watt hour meter body, and even if the current terminal has a slightly different width, the current terminal connection portion can be reliably contacted. Can do.

It is a front view of the connector which concerns on embodiment of this invention. It is a top view of the connector which concerns on embodiment of this invention. It is side surface sectional drawing (at the time of non-connection) of the connector which concerns on embodiment of this invention. It is side surface sectional drawing (at the time of a connection) of the connector which concerns on embodiment of this invention. It is a schematic front view (FIG. 5A) of the terminal block separation type watt hour meter and a bottom view of the watt hour meter main body (FIG. 5B). It is the schematic front view (FIG. 6 (a)) and bottom view (FIG.6 (b)) of a terminal block integrated watt-hour meter.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a front view of a terminal block separation type electricity meter connector according to the present embodiment, FIG. 2 is a plan view (top view), and FIGS. 3 and 4 are side sectional views. Note that FIG. 3 shows a non-wired state, and FIG. 4 shows a connected state.

  First, the terminal block separation type electricity meter connector 10 shown in FIGS. 1 to 4 has a terminal block separation type having current terminals 53a to 53d and voltage terminals 54a to 54c on the bottom surface as shown in FIG. It is for connecting the watt-hour meter main body 51 and the power supply side of a test apparatus (not shown).

1 and 2, the wire connection device 10 includes a fixed plate 1 and a cover 2 made of a transparent material attached to the front surface of the fixed plate 1.
The fixed plate 1 is a plate-like member for fixing the watt hour meter body 51 of the terminal block separation type watt hour meter 50 and is fixed to a test apparatus (not shown). Even when the plate 1 is slanted, it has a strength that can support its weight. As shown in FIGS. 3 and 4, the watt hour meter main body 51 is disposed on the front surface of the fixed plate 1.

The cover 2 covers the current terminal connection portions 8a to 8d from the outside so that the user of the wire connection device 10 does not come into contact with the current terminal connection portions 8a to 8d described later. By forming the cover 2 with a transparent material, it is easy to confirm the connection state.
A notch is provided in the upper portion of the cover 2, and a rail-like support 3 is fixed to the notch. The support 3 supports the watt-hour meter body 51 placed thereon, and is a stopper of positioning fixtures 4a and 4b that can move in the longitudinal direction of the support 3 and can be fixed at an arbitrary position. By tightening, the watt hour meter main body 51 is positioned at a desired position. Thereby, even when the shape and dimension of the terminal part in which the voltage terminal and the current terminal of the watt-hour meter main body 51 are arranged are different, the same connector 10 can be applied.

The current terminals 7 a to 7 d are connected to the power supply side (current circuit) of the test apparatus and are integrally fixed to the movable block 7 below the support 3. The upper ends of the current terminals 7a to 7d are extended to the fixed plate 1 side to constitute current terminal connection portions 8a to 8d. As will be described later, the movable block 7 is movable in the direction of arrow a in FIGS. 2 to 4 (direction orthogonal to the paper surface of FIG. 1).
As shown in FIG. 2, voltage terminal connection portions 5 a to 5 c connected to the power supply side (voltage circuit) of the test apparatus are arranged between the current terminal connection portions 8 a to 8 d and the fixed plate 1.

Further, as shown in FIG. 3, the cylinder 6 is fixed to the front surface of the fixed plate 1, and the movable block 7 is fixed to the movable portion 6m. Here, the cylinder 6 and the movable part 6m constitute a drive part in claims.
The movable block 7 is moved in the direction of the arrow a by the operation of the cylinder 6 and the movable portion 6m, and the current terminals 7a to 7d and the current terminal connection portions 8a to 8d are interlocked with this.

  2 and 3, reference numeral 5 denotes a voltage terminal block in which the voltage terminal connection portions 5a to 5c are arranged, and an insulating partition plate 9 is arranged on the front surface thereof. The voltage terminal connection parts 5a to 5c are formed in a concave shape so as to be in line contact or surface contact with the voltage terminals 54a to 54c projecting from the bottom surface of the watt hour meter body 51, and the voltage terminal connection parts 5a to 5c It is considered that the terminals 54a to 54c are reliably in contact with each other over a wide area. Furthermore, as shown in FIG. 2, by forming the planar shape of the voltage terminal connection portions 5a to 5c into an oval shape, the arrangement and dimensions of the voltage terminals 54a to 54c according to the rating of the watt hour meter body 51 and the manufacturer. Can handle differences.

Next, the operation of this embodiment will be described with reference to FIGS.
As shown in FIG. 3, the watt hour meter main body 51 of the watt hour meter 50 is placed on the upper surface of the support portion 3, and the voltage terminals 54 a to 54 c on the watt hour meter main body 51 side are voltage terminal connection portions on the connector 10 side. The watt hour meter main body 51 is positioned and fixed to the connector 10 using the positioning fixtures 4a and 4b so as to match 5a to 5c. At this time, the current terminals 53a to 53d projecting from the bottom surface of the watthour meter main body 51 are disposed on the front surface of the partition plate 9, and the current terminal connection portions 8a to 8d on the connector 10 side through the gap. It is located in the back, and the current terminals 53a to 53d and the current terminal connection portions 8a to 8d are not connected. In addition, the current terminals 53a to 53d can be smoothly introduced by applying a taper process to the upper end portion of the partition plate 9.

When the cylinder 6 is driven in this state, the movable portion 6m moves in the arrow a direction. As a result, the movable block 7 and the current terminal connection portions 8a to 8d move in the same direction, and the current terminals 53a to 53d are sandwiched between the partition plate 9 and pressed as shown in FIG. Thereby, the current terminals 53a to 53d of the watt-hour meter main body 51 and the current terminal connection portions 8a to 8d of the connector 10 can be reliably brought into contact with each other.
In particular, by bringing the end surfaces of the current terminals 53a to 53d into surface contact with the surfaces of the current terminal connection portions 8a to 8d, the contact area can be increased and a reliable electrical connection state can be obtained. Accordingly, it is possible to easily and reliably apply a voltage and pass a current between the test apparatus and the watt-hour meter main body 51 via the connector 10 according to the present embodiment.

  It should be noted that the present invention is a terminal block separation type watt hour meter main body having an external terminal structure in which a flat current terminal protrudes from the bottom surface of the watt hour meter main body and a voltage terminal is arranged in the back thereof. For example, the watt-hour meter 50 described above is applicable.

1: Fixed plate 2: Cover 3: Support tool 4a, 4b: Positioning fixture 5: Voltage terminal block 5a-5c: Voltage terminal connection part 6: Cylinder 6m: Movable part 7: Movable block 7a-7d: Current terminal 8a- 8d: Current terminal connection portion 9: Partition plate 10: Connection device 50: Terminal block separation type watt-hour meter 51: Power meter main body 52: Terminal block connection portion 53a to 53d: Current terminal 54a to 54c: Voltage terminal 55: Terminal Block 60: Terminal block integrated watt hour meter 61: Power meter main body 62: Terminal block 63a to 63d: Current terminal 64a, 64b: Voltage terminal

Claims (7)

Terminal block separation type watt-hour meter connector for connecting a voltage terminal and a current terminal of the terminal block separation-type watt-hour meter main body to a power supply unit of a test device for testing the electrical performance of the watt-hour meter main body In
A voltage terminal connection unit that is connected to the voltage circuit of the power source unit and that contacts the voltage terminal when the watt hour meter body is set in the connector;
A current terminal connection portion that is connected to the current circuit of the power supply unit, and that is formed so as to be able to contact and separate from the current terminal when the watt-hour meter body is set in the connector;
A drive unit for moving the current terminal connection part, press-contacting the current terminal between the current terminal connection part and an insulating plate member, and connecting the current terminal connection part and the current terminal; ,
A terminal block separation type watt-hour meter connector characterized by comprising: In the terminal block separation type electricity meter connector according to claim 1,
A terminal block separation type watt-hour meter connection device comprising a cover made of a transparent material covering the current terminal connection portion. In the terminal block separation type electricity meter connector according to claim 2,
A rail-like support that supports the watt-hour meter body is fixed to the upper end of the cover, and the watt-hour meter body is positioned and fixed by a positioning fixture that is movable in the longitudinal direction of the support tool. Terminal block separation type watt-hour meter connector. In the terminal block separation type electricity meter connector described in any one of claims 1 to 3,
The terminal block separation type watt-hour connector, characterized in that the voltage terminal connection portion is formed in a concave shape so as to conform to and contact with a voltage terminal protruding from the watt-hour meter body. In the terminal block separation type electricity meter connector according to claim 4,
The terminal block separation type watt-hour meter connection device characterized in that the voltage terminal connection portion has an elliptical planar shape. In the terminal block separation type electricity meter connector according to any one of claims 1 to 5,
A terminal block separation type watt-hour meter connector, wherein an end portion of the insulating plate-like member is tapered to introduce the current terminal. In the terminal block separation type electricity meter connector described in any one of claims 1 to 6,
The terminal block separation type watt-hour meter connector characterized in that the current terminal connection part is formed wider than the current terminal.

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