JP6099339B2 - Electricity meter automatic inspection device and method - Google Patents

Description

  The present invention relates to an automatic inspection apparatus and method for a watt-hour meter that calculates a consumption amount of power transmitted from a power supplier side to a power consumer side.

Conventional mechanical watt-hour meters and electronic watt-hour meters have a shape in which a terminal block for connecting with an electric wire is integrated with a watt-hour meter main body. This watt-hour meter (hereinafter sometimes referred to as a watt-hour meter with a terminal block) is provided with a current terminal 52, a voltage terminal 53 and a communication connector 54 in the terminal block portion at the bottom of the watt-hour meter as shown in FIG. ing.
When conducting an electrical performance test on this watt-hour meter with a terminal block, the automatic connection device for connecting and connecting to the power supply unit of the test equipment uses the terminal block to press the device connection device from the front or to conduct from the bottom surface. The connection between the power supply unit of the test apparatus and the watt hour meter has been performed by inserting and connecting the bars. For example, press the leaf spring type connector from the front of the terminal against the head of the terminal screw attached to the terminal block, and connect the wires, or a metal cylinder for wire insertion placed on the bottom of the terminal block For example, a split terminal is inserted into a terminal and a push pin inside the split terminal is raised to open the split terminal so as to come into contact with a current terminal of the watt-hour meter (Patent Document 1).

  In general connection when the rated current of the watt-hour meter with a terminal block is small, there is a method in which the connector is pressed against the terminal block using the head of the terminal screw in the terminal block. In this method, when there is a “burl” on the screw head, a sufficient contact state cannot be obtained, and contact failure, power supply overload, temperature rise, etc. may occur.

  On the other hand, in general connection when the rated current of the watt-hour meter is large, there is a method in which a split terminal is inserted from a metal cylindrical terminal for inserting an electric wire on the bottom of the terminal block, the split terminal is opened and connected. is there. Also in this case, when the finish in the cylinder is poor, a sufficient contact area cannot be obtained due to “burrs”, and contact failure, power supply overload, temperature rise, etc. may occur.

  On the other hand, it is expected that a terminal block separation type watt-hour meter defined as a smart meter (hereinafter sometimes referred to as a box-type watt-hour meter) will be widely used. This watt-hour meter has a function to measure and hold the amount of power every 30 minutes, and by communicating with the outside, it is an abbreviation for automatic meter reading and HEMS (HEMS: Home Energy Management System) A system that supports energy management at home, which is used to connect energy consuming equipment in a home via a network to enable monitoring of operating status and energy consumption status, remote control and automatic control, etc.) It is a watt-hour meter that handles a lot of information. For this reason, the function test regarding a communication part, such as the performance confirmation regarding the communication function of a box-type watt-hour meter, confirmation of holding | maintenance data, and various condition settings to a watt-hour meter, is especially important.

  In the box-type watt-hour meter, as shown in FIG. 2, the terminal block is separated at the time of the test, the current terminal 52 and the voltage terminal 53 protrude from the bottom surface of the watt-hour meter body, and the communication connector 54 is recessed. It is supposed to be exposed. In this way, the terminal block watt-hour meter and the box-type watt-hour meter differ in the position of the terminal or communication connector at the time of the test. It cannot be used for a meter.

  Furthermore, watt-hour meters can be classified into various types according to the difference in phase wire type, rated voltage, and rated current. These also affect the size and shape of the watt-hour meter, and the number and arrangement of power terminals differ. In order to perform an electrical performance test on such a variety of watt-hour meters, it is necessary to prepare several types of connectors for connecting to the watt-hour meter on the test apparatus side. For this reason, a device that can replace the connector part is used, a plurality of dedicated test devices classified by rating are prepared, and recently, it corresponds to the watt hour meter corresponding to the difference in the structure of the terminal part. A rating selection type testing device that has a plurality of hanging surfaces and selects these hanging surfaces has been developed and used.

In addition, several patent applications have been filed for a single wire connection device corresponding to a box-type watt-hour meter (for example, Patent Document 2 and Patent Document 3). Not.
On the other hand, when testing the watt-hour meter, the tester's wrong measurement and mistake were made using the adapter integrated with the main body in order to match the terminal on the watt-hour meter inspection device and the target watt-hour meter. There exists a device (Patent Document 4) that has been devised to prevent connection. However, this allows a series of necessary inspections such as voltage measurement, phase rotation detection, operation confirmation, etc., but is intended for the convenience of inspecting one watt-hour meter. There is no place to be aware of automatically checking the electricity meter.

Japanese Patent No. 4602362 JP 2011-242325 A JP 2012-83319 A JP 2007-225881 A

  When intended for quick inspection of watt-hour meters, it is necessary to prepare and replace several types of automatic connectors for the same performance test items in order to cope with differences in the watt-hour meter's rating, dimensions and shape. As a result, there is a lot of labor for the examiners, and as a result, the production efficiency is inevitable.

  Moreover, even if the connector adapter corresponding to various watt-hour meters is used, since there are many types, it is extremely difficult to support all of them. Indeed, it is possible to handle several specific types by having multiple test surfaces on the test equipment, but it is extremely expensive in terms of equipment costs, because it is necessary to have the same support for multiple facilities for each test item. It will become something.

  The setting and function tests that are performed within the general wattmeter manufacturing flow include insulation resistance tests (measurement of insulation resistance by applying a DC high voltage between the voltage circuit and base, etc.), commercial frequency withstand voltage test ( Application of AC high voltage between the voltage circuit and base etc. to test for abnormalities), rating setting (rated current value, measurement conditions, serial number etc. are set by communication), function test (current consumption, voltage of each part, frequency) Etc.), instrumental error adjustment, instrumental error test (adjustment of instrumental error value to target value, instrumental error, start-up, and latent motion tests).

In addition, the devices that perform these tests are insulation / withstand voltage test equipment, rating setting / communication jig (PC & interface box), function test / check jig (PC & measuring jig & measuring instrument), instrumental error There is an adjustment / test device (see FIG. 3).
In general, testers are transported between each test device by a cart with a watt hour meter in the basket, and the watt hour meter is attached to the test device and removed at the end of the test by the tester. It is done manually.

  Under such circumstances, automatic connection can be easily performed in correspondence with watt-hour meters that exist in multiple types, and efficient implementation can be performed collectively without the need for manual transportation when performing various tests. There is a need for an automatic inspection device that can be performed. In addition, the box-type watt-hour meter is required to be manufactured at a lower cost, cost reduction is an essential issue, and labor cost reduction through automation is also required.

A first aspect of the present invention is a transport device for transporting a watt hour meter and an insulation / withstand voltage test, a rating setting, a function test, a device difference adjustment and / or a device difference test provided along the transport device. One or more test devices, an automatic wire connection unit that automatically connects the test device and a plurality of types of box-type watt-hour meters, a power supply device, and a control device, the automatic wire connection unit, comprising a plurality of connection devices, the plurality of connection units, respectively, with a connection plurality of current terminals and a plurality of voltage connection terminal, wherein the controller, automatic testing a plurality of types of boxes type watt-hour meter by the testing device and a power meter automatic inspection apparatus characterized by automatically separating the good and defective products by the transport device.
According to a second invention, in the first invention, the current connection terminal of the connector is formed of a rectangular parallelepiped member connected to a conductive bar extending vertically and having chamfered corners.

A third invention is characterized in that, in the first or second invention, the plurality of connectors are provided with a rotation mechanism that allows the plurality of current connection terminals to rotate by a predetermined angle in the horizontal direction.
According to a fourth invention, in any one of the first to third inventions, the plurality of connectors includes an inclination mechanism that allows a plurality of current connection terminals to take a vertical attitude and an inclination attitude, and the inclination mechanism A shaft for connecting the plurality of current connection terminals in the horizontal direction, a plurality of elastic members connected to the plurality of current connection terminals, and an adjustment stopper for adjusting the inclination angles of the plurality of current connection terminals, respectively. It is characterized by comprising.
According to a fifth invention, in any one of the first to fourth inventions, the automatic wire connection unit comprises a plurality of automatic wire connection units having a current circuit short-circuit mechanism for bypassing connection between the wire connection device and the power supply device. The control device is not connected to the watt hour meter when one or more connection unit is connected to the watt hour meter and one or more connection unit is not connected to the watt hour meter. The connection between the connector unit and the power supply device is bypassed by a current circuit short-circuit mechanism.
According to a sixth invention, in any one of the first to fifth inventions, the invention further includes a transport pallet on which a plurality of types of box-type watt-hour meters can be mounted, and the control device is configured to use the automatic connector unit by the transport device. And a transfer pallet are automatically connected.

According to a seventh aspect , in the sixth aspect , the transport pallet is detachably mountable with an attachment corresponding to a watt hour standard.
According to an eighth invention, in any one of the first to seventh inventions, the test apparatus includes a test apparatus for performing an insulation / withstand voltage test, and the test apparatus is constituted by a plurality of metal members facing each other. It is characterized by comprising a connector comprising a voltage probe having a fitting portion to be inserted and a current probe.
According to a ninth invention, in any one of the first to eighth inventions, the test device includes a lane composed of a plurality of test devices for performing instrumental error adjustment or instrumental error test, and the control device transports The equipment carries in the received watt-hour meter sequentially into an empty lane, detects that the watt-hour meter is carried into the lane, automatically connects the watt-hour meter to the test device, and a plurality of test conditions Based on the above, a test process for supplying AC power from the power supply device to the watt hour meter and performing a test, and an unloading process for unloading the watt hour meter that has completed all of the test conditions from the lane are performed. Characterized in that AC power is supplied in a cycle based on the same reference time in all lanes, and the same test conditions are implemented in the same cycle in all lanes where a watt hour meter exists. That.

A tenth aspect of the invention is a watthour meter automatic inspection method using the wattmeter automatic inspection device according to any one of the first to eighth aspects, wherein the test device performs a difference adjustment or a difference test. Including a lane composed of a plurality of test devices, and a transfer device that sequentially carries the received watt-hour meter into an empty lane, detects that the watt-hour meter is loaded into the lane, and The process of automatically connecting the meter and the test device, supplying AC power from the power supply device to the watt hour meter based on a plurality of test conditions, performing the test, and the watt hour meter having completed all of the plurality of test conditions in the lane An unloading step for unloading, wherein the test step is supplied with AC power in a cycle based on the same reference time in all lanes, and the same cycle in all lanes where watt-hour meters exist Then the same Conditions of the test is a power meter automatic inspection method characterized by being performed.
The eleventh invention includes one or more test devices, a power supply device, and a control device, and is mounted on a watt-hour automatic inspection device that automatically tests a plurality of types of box-type watt-hour meters using the test device. It is an automatic connection device, a current connecting terminal (2) is connected to the upper part, a conducting bar having a current line connecting part provided in the lower part, a movable member to which a plurality of conducting bars are joined, and a movable member reciprocatingly. Current connection cylinder comprising: a current connection cylinder to be rotated; a rotation mechanism that allows a plurality of conductive rods to rotate in a horizontal direction by a predetermined angle; and a tilt mechanism that enables the plurality of conductive rods to take a vertical posture and an inclined posture. Terminal connecting portion, a fixing member provided with a plurality of voltage connection terminals (3), a voltage connection cylinder that moves between a rising position and a lowering position, and a movable member that connects the fixing member and the drive cylinder And An automatic wire connection device, characterized in that Ete be configured.
The twelfth invention includes one or more test devices, a power supply device, and a control device, and is mounted on an watt-hour automatic inspection device that automatically tests a plurality of types of box-type watt-hour meters using the test device. An automatic wire connection unit comprising a plurality of automatic wire connections corresponding to a plurality of types of watt-hour meters having different terminal arrangements, wherein a part or all of the plurality of automatic wire connection devices are current connection terminals (2) Is connected to the upper part, a conductive rod having a current line connecting portion provided in the lower part, a movable member connected to a plurality of conductive bars, a current connection cylinder for reciprocating the movable member, and a plurality of conductive bars horizontally. There are provided a current terminal connection portion including a rotation mechanism that is rotatable by a predetermined angle in a direction, a tilt mechanism that enables a plurality of conducting rods to take a vertical posture and a tilt posture, and a plurality of voltage connection terminals (3). Fixed member and raised position A voltage-connecting cylinder to move the pre-lowered position, an automatic connection unit, characterized in that it is constructed and a voltage terminal connecting portion and a movable member for connecting the fixing member and the drive cylinder.

  The watt-hour automatic inspection device according to the present invention is compatible with various types of watt-hour meters having different dimensions for each specification of rated voltage and rated current, eliminating the need for handling work for each test and continuously performing each test. It is possible to perform automatically.

Moreover, the watt-hour meter automatic inspection device provided with the attachment has realized the simplification of the human work concerning carrying in greatly.
In addition, the watt-hour automatic inspection device equipped with a rotating mechanism is a correction to make surface contact in parallel from the front by adapting to the inclination of the watt-hour meter or the variation in the direction of the individual current terminals of the watt-hour meter. By providing a current connector with a contact section that can perform the connection, the connection connection operation between the watt-hour meter terminal and the inspection device side terminal at the time of the test is made flexible, and the contact state between the two terminals can be changed. It is a certainty.

Moreover, the watt-hour automatic inspection device provided with the tilt mechanism can easily and surely connect all terminals during the test.
Moreover, the watt-hour meter automatic inspection device including the current circuit short-circuit mechanism can form a closed circuit even when all the test units of the inspection device do not have watt-hour meters.
Moreover, the watt-hour automatic inspection device provided with the contact probe can confirm the contact state reliably even with a small terminal.

  In addition, the watt-hour automatic inspection method of the present invention is an apparatus that performs electrical performance tests on a plurality of watt-hour meters in a batch without efficiently waiting for all lanes to have watt-hour meters. A meter test can be performed.

Conventional watt-hour meter with terminal block. (A) is a front view, (b) is a bottom view. Box-type electricity meter. (A) is a front view, (b) is a bottom view. Box-type electricity meter manufacturing flow The whole block diagram of the watt-hour meter automatic inspection apparatus which concerns on the example of embodiment of this invention Relationship between attachment and transport pallet. (A) When disassembling, (b) When attaching an attachment Explanatory drawing about connection mode with watt-hour meter terminal Configuration of instrument type attachment (a) and transport pallet (b) The automatic wire connection unit of the present invention. (A) is a perspective view of three types of automatic wire connection unit, (b) is an explanatory diagram of the flow of connection by the automatic wire connection unit Front view of single-phase / three-phase three-wire 60A connector View of single-phase / three-phase three-wire 60A connector from above Perspective view showing the configuration of a single connector Top view showing the rotation mechanism of the current terminal connection Illustration of the action of the tilt mechanism Explanatory drawing of the conventional current circuit short circuit mechanism. (A) is a current circuit configuration, (b) is a power supply application with a watt hour meter, and (c) is a circuit short circuit without a watt hour meter. The block diagram of the current circuit short circuit mechanism which concerns on the example of embodiment of this invention. (A) Current circuit short-circuit (short bar) mechanism when connection is OFF, (b) Connection to short bar, (c) Connection to watt-hour current terminal Configuration diagram of a short bar having a plurality of rectangular contact parts supported by an elastic member Timing chart for installing a watt hour meter in a conventional manual instrumental error testing device Timing chart for installing a watt hour meter in an instrumental difference test device that has an individual power supply (or standard current transformer) for each watt hour circuit Timing chart of installation of watt hour meter in the free flow type instrumental difference test apparatus of the present invention The timing chart of the watt-hour meter carrying in / out in an instrument difference test apparatus. (A) When five conventional instruments are collected and then test conditions 1 to 5 are sequentially executed, (b) When test conditions 1 to 5 are sequentially executed by the free flow method of the present invention Contact probe for high-voltage connector. (A) is a general view of a contact probe, (b) is a wired state Continuity check with contact probe. (A) is an example of current terminal continuity check, (b) is an example of voltage terminal continuity check, and (c) is an enlarged view of a terminal portion.

A watt-hour meter automatic inspection device according to a preferred embodiment of the present invention will be described.
FIG. 4 is a schematic diagram of the watt-hour meter automatic inspection device 1 of the present embodiment.
The watt-hour automatic inspection device 1 of the present embodiment includes a transport pallet 30 on which the watt-hour meter 50 is mounted, a transport device 40 that transports the transport pallet 30, and a test that is arranged from upstream to downstream of the transport device. The apparatus and automatic connector unit 100 and the control apparatus are the main components. In FIG. 4, the automatic connector unit 100 is not shown in the setting field / test field other than the instrumental error test field and the instrumental error adjustment field.

In the watt-hour automatic inspection device 1 of the present embodiment, the assembled watt-hour meter 50 to be tested is placed on the transport pallet 30 and carried in from the entrance in FIG. The watt-hour meter 50 carried into the inspection device 1 is sequentially tested by each testing device, and those that have passed all the tests are transported to the next process as non-defective products. Is discharged by the discharge conveyor 41 as an NG product, that is, a defective product.
In the example of FIG. 4, the test apparatus is composed of apparatuses that perform each test of insulation / withstand voltage test, rating setting, function test, instrument difference adjustment, instrument difference test. In addition to these electrical performance tests, a communication function test device may be arranged.

The instrumental difference test field has three test lanes, and the test is performed by a free flow method to be described later. Freeflow lanes are not limited to the three shown in the figure, and can be realized with an arbitrary number of lanes. The instrumental difference adjustment field also has two test lanes, and tests are performed by the free flow method. In this case, items that are out of the standard range in the instrumental difference adjustment field are adjusted to the standard range, and the discharge is delayed, and the discharge may not be performed in the order of loading. Needless to say, the free flow method can also be applied to other setting sites and test sites.
A series of these tests are automated by adopting the configuration of the automatic connection unit 100 including the transport pallet 30 to which the instrument type attachment 31 is attached and a plurality of connection units. Next, the transport pallet 30 and the automatic connector unit 100, which are important elements for realizing test automation, will be described.

《Transport pallet》
As shown in FIG. 5, the transport pallet 30 is composed of a plate-like member provided with two openings, and a plurality of types of attachments 31 can be detachably attached. The conveyance pallet 30 is preferably provided with an attachment mechanism that allows the attachment 31 to be easily attached and detached without using a tool. The attachment 31 is an instrument type attachment corresponding to watt-hour meters having different dimensions. By exchanging the attachment for each product type and making it correspond to the shape according to the rating of the watt-hour meter, it is possible to carry it with the same carrying pallet even if the size is different.

The operator selects the attachment 31, attaches the attachment 31 to the carry-in pallet 30, and places the watt-hour meter 50 thereon (see FIG. 5B). As shown in FIG. 6, the watt-hour meter 50 is placed on the carry-in pallet 30 to which the attachment 31 is attached, thereby connecting the communication connector (female) 54 of the watt-hour meter and the communication connector (male) 32 of the attachment. Is also performed at the same time. In addition, when testing with respect to one kind of watt-hour meter 50, once the attachment 31 is attached to the carry-in pallet 30, the subsequent selection / attachment work of the attachment 31 becomes unnecessary.
When the inspection apparatus 1 starts to operate, the conveyance pallet 30 is automatically drawn into the place of the test apparatus, and the watt-hour meter 50 and the automatic connector unit 100 are automatically connected. At this time, the communication terminal connector 32 of the transport pallet 30 and the communication conductive contact pin 107 are also automatically connected via the communication terminal connection pad 33.

FIG. 7A is a top view of the transport pallet 30. Two adjacent corners of the conveyance pallet 30 are provided with pull-in hook insertion holes 34, respectively, into which the pull-in hooks are inserted and pulled to the place of the test apparatus. Moreover, the connector positioning hole 35 for positioning when joining with the automatic connector unit 100 is provided in one place.
FIG. 7B is a top view of the attachment 31. The attachment 31 is provided with a pair of attachment plates 36 for fixing to the transport pallet 30. The attachment 31 is fixed to the transport pallet 30 by inserting a locking member through a hole (not shown) provided in the mounting plate 36, for example.

<Automatic connection unit>
The watt-hour automatic inspection device of the present embodiment includes an automatic connector unit 100 for connecting the test device and the current terminal 52 and the voltage terminal 53 of the watt-hour meter. The automatic wire connector unit 100 of the present invention includes a plurality of types of automatic wire connectors corresponding to voltage terminals, current terminal arrangement dimensions, and terminal widths that differ depending on the specifications of the rated voltage and rated current of the watt-hour meter. . In the following, an example of a three-type wire connection unit in which power is applied under test conditions based on the rated voltage / current (for example, 20 to 200% of the rating) will be described. In the present embodiment, an automatic connector for each rated current is provided. However, the present invention is not limited to this combination, and for example, a rated voltage, a phase type, or a line type may be used.

FIG. 8A is a perspective view of the automatic connector unit 100 corresponding to the three types. In the figure, the front frame 106 is not shown.
The automatic connector unit 100 includes a single-phase / three-phase three-wire 60A connector 101, a single-phase / three-phase three-wire 120A connector 102, and a single-phase two-wire 30A connector 103. ing. These connectors 101 to 103 are arranged in parallel and substantially at equal intervals along the longitudinal direction of the frame 106.

FIG. 8B is an explanatory diagram of a connection flow by the automatic connector unit 100 of FIG. <1> to <3> in the figure correspond to the next stage.
<1> The conveyance device 40 conveys the conveyance pallet 30 on which the watt-hour meter 50 is mounted to the test apparatus to the upper side of the automatic connector unit 100. At this time, the inspection apparatus 1 stops the transport pallet 30 at the position of the connector corresponding to the rating of the watt-hour meter 50 mounted on the transport pallet 30.
<2> The entire automatic connector unit 100 is lifted by a lifting / lowering drive cylinder (not shown). Then, one of the transport pallet positioning pins 104a to 104c enters the connector positioning hole 35 of the transport pallet 30, and positioning is performed. At this time, the conductive contact pin for communication 107 (not shown) also rises from below, and contacts and connects to the communication terminal connection pad 33 on the transport pallet. Further, the current terminal 52 of the watt-hour meter enters the current terminal insertion gap 109 of the unit 100.
<3> The current connection opening / closing drive cylinder 105 is driven, the connector pressing plate 108 is moved, and the current terminal 52 of the watt hour meter is sandwiched and pressed between the insulating material fixing block 8 and the current connection terminals 2a to 2d 109. Connect. Thereafter, the voltage connection raising / lowering drive cylinder 13 is raised, and the voltage terminal of the watt hour meter and the voltage connection terminals 3a to 3c of the connector are connected.

  Thus, since the automatic wire connection unit 100 of this embodiment has the wire connection devices 101 to 103 corresponding to different terminals, it is not necessary to replace the wire connection device by a conventional manual operation. In addition, improvement in workability and production efficiency can be expected, and an inspection apparatus can be configured at a lower cost than arranging a plurality of connectors or test apparatuses. Next, the configuration of the rated voltage / current wire unit provided in the automatic wire unit 100 will be described.

<Rated voltage / current connector>
A single unit for a rated voltage / current connector provided in the automatic connector unit 100 of the present embodiment will be described. Since all the connectors 101 to 103 have the same basic configuration, an example of the connector 101 will be described below.
FIG. 9 is a front view of the single-phase / three-phase three-wire type 60A connector 101 as viewed from the position AA in FIG. The connector 101 includes (i) a current terminal connection portion, (ii) a voltage terminal connection portion, and (iii) a current circuit short-circuit mechanism, which will be described in detail below.

(I) Current terminal connection portion The current terminal connection portion includes current connection terminals 2a to 2d and conductive bars 20a to 20d.
As shown in FIG. 10, the current connection terminals 2 a to 2 d are made of a rectangular parallelepiped block material. As shown in FIG. 11, the current connection terminals 2 a to 2 d are fixed to the upper ends of the conducting bars 20 a to 20 d by fixing members 21 a to 21 d inserted from the upper surface. It is installed. The upper surface corners of the current connection terminals 2a to 2d are curved (chamfered) to prevent the watt-hour meter 50 from being pushed up by the corners at the time of connection. Moreover, the contact surface which is a side surface of the current connection terminals 2a to 2d ensures a sufficient contact area so that stable contact can be obtained. Moreover, by making the current connection terminals 2a to 2d into a rectangular parallelepiped shape (including a cube), a heat radiation area is ensured, and a temperature rise of the terminal portion during current conduction is suppressed.

Each conducting rod 20 included in each of the connection devices 101 to 103 is connected to the current terminal connection shaft 4 included in each connection device. Each current terminal connecting shaft 4 is fixed to each movable plate 14, and the current connection opening / closing drive cylinder 105 is connected to the movable plate 14 through the through shafts 6 a and 6 b connected to each movable plate 14 and the connector pressing plate 108. The reciprocating motion is transmitted to each conducting rod 20.
In addition to each current connection terminal 2 and each conducting rod 20, the current terminal connection portion includes a rotation mechanism that allows each current connection terminal 2 to rotate in a horizontal direction at a constant angle, and a plurality of currents pushed out by one drive cylinder 105. An inclination mechanism is provided that enables the connection terminals 2a to 2d to be surely brought into contact with all current terminals of the watt-hour meter 50.

  As shown in FIG. 12, the rotation mechanism includes a through pin 22 and a pair of rotation stop pins 10. The penetration pin 22 is a screw-shaped member that penetrates the conducting rod 20 in the horizontal direction, and can rotate between the pair of rotation stop pins 10. By the rotation mechanism, it is possible to perform posture correction for surface contact in parallel from the front in accordance with the inclination of the watt hour meter or the variation in the direction of the individual current terminals of the watt hour meter. When tested with the prototype rotation mechanism, it was able to clear 20,000 open / close operation tests (endurance test).

  The tilting mechanism includes a current terminal fixing block 5, a connecting shaft 4 that fixes the fixing block 5 so as to be tiltable forward and backward (in the direction of the arrow in FIG. 11), a U-shaped movable plate 14, the fixed block 5, and the movable plate. 14, and an elastic stopper 12 that can adjust the inclination angle of the fixed block 5. The elastic member 12 of this embodiment is a spring. The tilt mechanism absorbs the pinching difference between the current bars 52a to 52d of the continuity bars 20a to 20d and the watt-hour meters facing each other, so that the current terminal 52 can be clamped by one current connection opening / closing cylinder 105. Yes.

FIG. 13 is an explanatory diagram of the action of the tilt mechanism.
(A) is an example when the contact surfaces of the current terminals 52a to 52d of the watt hour meter and the contact surfaces of the current connection terminals 2a to 2d are both parallel. In this case, the contact surface of the current terminal 52 and the contact surfaces of the current connection terminals 2a to 2d are in contact with each other without any problem.
(B) is Examples 1-5 when either the contact surface of current terminal 52a-52d of a watt-hour meter and the contact surface of current connection terminal 2a-2d are not parallel. Examples 1, 4, and 5 are cases in which either of the contact surfaces of the current terminal and the current connection terminal is not parallel, and Example 2 is a displacement of the mounting position of the current terminals 52a to 52d and the thickness of the terminal itself. This is a case where a difference in distance from the current connection terminals 2a to 2d occurs due to the difference between the current terminals 52a to 52d and the current connection terminals 2a to 2d due to the displacement of the position on the connector side. This is the case. The cause of this is, for example, when there is a displacement of the watt hour meter due to the influence of the clearance when the watt hour meter is attached to the transport pallet, the watt hour meter itself may vary in position, orientation, thickness, etc. There may be a gap.

  Example 1 and Example 4 are cases where contact is obtained by providing a rotation mechanism, and Examples 2 and 3 are cases where contact is obtained by providing an inclination mechanism. However, in Example 5, if the tilt mechanism is not provided in addition to the rotation mechanism, contact cannot be obtained at all of the current terminals 52a to 52d and the current connection terminals 2a to 2d. That is, when there is a tilt mechanism, the current terminal 52a and the current connection terminal 2a are connected first, and the remaining current terminals 52b to 52d and the current connection terminals 2b to 2d are sequentially connected by the escape by the spring (elastic member). It will be connected.

According to the wire connection device of the present embodiment including the current terminal connection portion having the above-described configuration, the flat plate current terminal 52 of the watt hour meter and the test apparatus can be reliably connected.
In addition, the contact area of the current connection terminals 2a to 2d is secured, the contact failure of the connector and the temperature rise of the terminal part are suppressed, and an accurate test can be performed by conducting a stable watt-hour meter. It is also possible to prevent a failure of the watt-hour meter and the test apparatus due to the failure.

(Ii) Voltage terminal connection portion The voltage terminal connection portion includes a fixed block 8 provided with voltage connection terminals 3a to 3c, a voltage connection ascending / descending drive cylinder 13, and a movable block for connecting the fixed block 8 and the drive cylinder 13. 9 and. The voltage connection terminal 3 and the movable block 9 can be moved up and down by the drive cylinder 13. At the lift position, the voltage connection terminals 3 a to 3 c are moved from the upper surface of the fixed block 8 as the drive cylinder 13 is lifted. It protrudes and contacts the convex voltage terminal 53.
According to the connector of this embodiment provided with the voltage terminal connection part of the above structure, the convex voltage terminal 53 of a watt-hour meter and a test apparatus can be connected reliably.

(Iii) Current Circuit Short-Circuit Mechanism A current circuit short-circuit mechanism included in the connectors 101 to 103 will be described with reference to FIG.
FIG. 14 illustrates an electric circuit configuration in the case where (b) there are three watt-hour meters and (a) (c) only two watt-hour meters are mounted in a test apparatus that tests three units simultaneously. It is a figure to do.
Conventionally, when a test device is equipped with a watt hour meter and a test is performed, the current (S) output from the power source device passes through the watt hour meter and forms a one-stroke writing, and a closed circuit that returns to the power source device (L) is configured. As a result, current flows for the first time (see FIG. 14A). Here, in a test apparatus that can test a plurality of units simultaneously (apply power), there is a problem that the test cannot be performed unless special measures are taken unless watt hour meters are installed in all the test units. For example, if there are only two watt-hour meters to be tested in a device that can test three units at the same time, the terminal is opened in the remaining one test unit, and a closed current circuit cannot be configured. The current cannot flow.

For example, the following methods (1) to (3) are conceivable in order to enable a test even if watt hour meters are not present in all the test units.
(1) A method for testing by installing a dummy watt hour meter (2) A method for bypassing by providing a short circuit on the test device side (3) A method for providing an individual power supply (or standard current transformer) for each test section

(1) is an inexpensive and simple method, but the watt hour meter is automatically set to flow and is not suitable for an automatic inspection apparatus for performing a test. (3) requires the same number of power supply devices (or standard current transformers) as the number of test units, and therefore there is a problem of increasing the cost of the test devices.
In view of this, the automatic circuit unit 100 according to the present embodiment is provided with a current circuit short-circuit mechanism according to the method (2) so that the test can be performed even if the watt hour meter is not present in all the test units.

The basic operation of the conventional current circuit short-circuit mechanism is as follows.
When the watt-hour meter exists in the individual test unit, as shown in FIG. 14B, the switch 116a between the terminal 1S of the power supply device and the terminal 1S of the watt-hour meter is turned on. The switch 116b between the terminal 1L and the adjacent wattmeter terminal is turned ON, and the switch 116c constituting the short circuit is turned OFF, thereby forming a closed circuit that connects the terminals 1S and 1L of the power supply device. Similarly, the switches 117a and 117b are turned on and the switch 117c is turned off, so that a closed circuit for connecting the terminals 3S and 3L of the power supply device is formed.
When the watt-hour meter does not exist in the individual test section, as shown in FIG. 14C, the switches 116a and 116b are turned off and the switch 116c is turned on to form a closed circuit that connects the terminals 1S and 1L of the power supply device. Is done. Similarly, the switches 117a and 117b are turned off and the switch 117c is turned on, so that a closed circuit for connecting the terminals 3S and 3L of the power supply device is formed.

FIG. 15 shows a specific configuration of the current circuit short-circuit mechanism of the present embodiment.
The current circuit short-circuit mechanism is constituted by short bars 61a and 61b arranged in the vicinity of the current connection terminals 2a to 2d. The short bar 61a is in contact with the current connection terminals 2a and 2d, and the short bar 61b is in contact with the current connection terminals 2b and 2c. By connecting the short bar 61 and the current connection terminal 2, a bypass circuit is formed (see FIG. 15B).

On the contrary, when each current terminal 52 and each current connection terminal 2 come into contact with each other in a state where each short bar 61 and each current connection terminal 2 are separated from each other, a closed circuit connected to the internal circuit of the watt-hour meter 50 is obtained. Composed.
The short bars 61a and 61b are fixed to the automatic wire connector unit 100, and the current connection terminals 2a to 2d are connected in the “open” state (see FIG. 15B) and the connection “closed” state by the current connection opening / closing drive cylinder 105. (See FIG. 15C), the contact position between the short bars 61a and 61b and the current connection terminals 2a to 2d (see FIG. 15B) and the non-contact position (see FIG. 15C). Switch. The short bars 61a and 61b and the current connection terminals 2a to 2d are brought into contact with each other in parallel by the rotation mechanism of the current connection terminals 2a to 2d.

Here, the short bar 61 does not have to be a single plate-like member. As shown in FIG. 16, the short bar 61 may have a plurality of (four) rectangular contact portions 63 supported by the elastic member 62. Good. According to the short bar 61 having such a configuration, it is possible to ensure contact with the current connection terminals 2a to 2d more reliably.
Thus, in the present embodiment, each current connection terminal 2 is in contact with the short bar 61 shown in FIG. 15B and the wattmeter communication terminal 52 shown in FIG. 15C. By making it possible to move between non-contact positions that do not contact each short bar 61, it is possible to always configure a closed circuit for testing regardless of whether a watt hour meter exists in the test section. is there. Further, the configuration is not limited to the configuration example of FIG. 16, and a short bar may be provided below the conductive rod 20.
Note that a closed circuit can be realized by providing a current circuit short-circuit mechanism in any one of the plurality of connecters provided in the automatic connection unit, but it is not necessary to provide a current circuit short-circuit mechanism in all the connecters.

《High voltage wiring device》
Below, the contact probe of the high voltage connector provided in the insulation / withstand voltage test apparatus will be described.
The insulation / withstand voltage test is specifically composed of an “insulation resistance test” and a “commercial frequency withstand voltage test”. This insulation / withstand voltage test is a test for confirming that each circuit has an insulation resistance higher than a specified value. For example, the voltage circuit to the case, the current circuit to the case, the voltage circuit to the current circuit, etc. This is done by applying a high voltage to. In the insulation / withstand voltage test, a high voltage is applied between the circuits (DC500V, AC2400V, etc. are applied).
In the insulation / withstand voltage test, since the current flowing through the voltage terminal and the current terminal when voltage is applied is small, a high-voltage wire connector having a contact probe having a shape different from those of other various tests is used. As with the rated voltage / current connector, multiple types of high voltage connectors are installed in the automatic connector unit.
Further, the current connection terminals 2a to 2d described with reference to FIG. 10 sandwich the current terminal 52 of the box-type watt-hour meter between the fixed block 8, but in the contact probe of the high voltage connector, As will be explained, what is required is to obtain a reliable connection state simply by pressing against the watt-hour terminal.

  In this insulation / withstand voltage test, if the contact probe of the high-voltage connector is not in contact, it is judged that the circuit has an insulation resistance that exceeds the specified level, and the test is “passed”. End up. This determination is not due to the fact that the circuit inside the watt hour meter has an insulation resistance higher than the specified value, but because the contact probe does not hit the terminal originally. Therefore, before applying the test power supply, it is necessary to confirm that the contact probe is securely in contact with the watt-hour terminal (continuity check). To the best of the applicant's knowledge, there has not existed an automatic connector for an insulation / withstand voltage test of a box-type watt-hour meter.

  The conventional watt-hour meter with terminal block has a large terminal screw head, so the probe can be easily contacted with the terminal screw. However, the voltage terminal of the box-type watt-hour meter is small, and contact confirmation to that terminal (conduction) Check) requires a new device.

FIG. 21 shows a contact probe 70 of the high voltage connector of the present embodiment.
As shown in FIG. 21A, the contact probe 70 of this embodiment includes a current probe 71, voltage probes 73a and 73b made of two opposing metal plates bent in an L shape, and a voltage probe 73a. , 73b, and a thick insulating material 72.
The watt-hour current terminal 52 has a plate shape in which two protrusions sandwiching the notch portion and the notch portion are provided at the tip, and the watt-hour voltage terminal 53 has a short pin shape protruding thinly.
As shown in FIG. 21 (b), when the watt hour meter main body 51 and the contact probe 70 reach the closest position, the watt hour voltage terminal 53 is inserted into the gap (insertion portion) between the voltage probes 73a and 73b, In addition, one of the protrusions at the tip of the wattmeter current terminal 52 is brought into contact with the upper surface of the current probe 71 to be electrically connected.

A continuity check using the contact probe 70 will be described.
FIG. 22A shows an example of current terminal continuity check. Here, continuity between 1S-1L in the watt hour meter is checked by applying a voltage to the circuit and checking the ON / OFF state of the relay RY provided on the circuit.
FIG. 22B is an example of voltage terminal continuity check. Here, the continuity of the voltage terminal P2 is checked by applying a voltage to the circuit and checking the ON / OFF state of the relay RY provided on the circuit. At this time, as shown in the left diagram of FIG. 22 (c), if the voltage terminal 53 is in contact with both of the pair of current probes 73 facing each other with the insulating material 72 interposed therebetween, conduction is OK and contact is made with either one. If not, connection NG occurs.

In the contact probe 70 of the present embodiment described above, since the short pin-shaped voltage terminal 53 is inserted into the voltage probes 73a and 73b, it is possible to confirm the contact state reliably even with a small terminal. Further, the contact / separation between the current terminal 52 and the voltage terminal 53 can be performed by reciprocating linear movement, which is suitable for automation.
The voltage probe 73 is not limited to the structure shown in the figure. For example, an insertion portion surrounded by three or more metal members (there may be an insulating material behind the insertion portion. The insertion portion may be a hole). In the present invention, a structure in which the watt hour voltage terminal 53 is inserted into the groove is also included in the present invention.

《Test implementation method》
[1] Conventional Example First, a test method in which a conventional tester manually changes the watt hour meter will be described.
FIG. 17 shows a flow in the case where “instrument difference test points (= conditions) 5 points” are performed in a five-unit “instrument difference test stand-alone device” in which the watt hour meter is manually changed by a tester. It is a thing. In this method, it is necessary to keep the number of attached watt-hour meters in a state where several units are hung on the test section until five units are ready. It is necessary to attach a dummy instrument to the part. The tester needs to start the test point conditions 1 to 5, and even if the sixth watt hour meter is brought in, the tester must wait until the five watt hour meters under test are removed from the test section. become. There is no carry-out of the watt-hour meter in the middle of the test point conditions 1 to 5, and five watt-hour meters are carried out when all the tests are completed.

Next, the flow in the inspection apparatus having a power supply circuit (standard current transformer) for each watt-hour circuit will be described with reference to FIG.
It is the same in that “instrumental difference test point (= condition) 5 points” is performed. Since multiple power supplies can be output, it is possible to output power at different test points for each watt-hour meter, and it is not necessary to wait for the watt-hour meter to be loaded until the start of the test from Condition 1 as in the previous example. The test point conditions 1 to 5 can be executed sequentially after loading. In this method, since five watt-hour meters can perform different tests, the watt-hour meter that is carried in later only waits until one of the five test units becomes empty, and the test efficiency Is better than the previous one.
However, since different test conditions are executed in the same cycle, the same number of power supply devices (or standard current transformers) as the number of testable units are indispensable, and there is a problem of increasing the cost of the test device.

[2] Free flow method An instrumental difference test employing the free flow method of the present invention will be described with reference to FIG. This technique implements “5 instrumental difference test points (= conditions)” as in the prior art.
In the free flow method, the power supply circuit is commonly used for five watt-hour meters, and five instrument test points (= conditions) are performed in the order of the test target. , 5 instrumental difference test points (= conditions) scheduled at the time of loading are started in random order.
By doing in this way, the watt-hour meter carried in later only waits until one place becomes empty among the five test units, and each watt-hour meter of FIG. Although the test efficiency is the same as the case where each power supply circuit is individually provided, only one power supply circuit is required, and the test is performed under the same test conditions in the same cycle, so that the measurement management can be controlled together.

  In the free flow method, AC power is supplied from the power supply device in a cycle based on the same reference time in all lanes, and the same device is used in the same cycle in all lanes where a watt hour meter exists. Difference test points (= conditions) are performed. That is, in FIG. 18, condition 3 → condition 4 → condition 5 → condition 1... Are executed in a cycle based on the same reference time, and all lanes (watt hour meter (1) ˜ In (5)), it can be confirmed that the same condition is implemented in the same cycle.

Next, with respect to the case where automatic conveyance is performed, (a) a case where five conventional instruments are accumulated and then test conditions 1 to 5 are sequentially executed, and (b) a case where a test is performed by this free flow method. Compare The test conditions are as follows.
・ Each inspection device is equipped with an instrumental test unit for 5 units.
-There are 5 instrumental difference test points, and it takes 10 seconds to execute 1 point.
・ A watt hour meter is carried every 20 seconds and flows.
・ It takes 2 seconds each for loading and unloading.

  FIG. 20 (a) is a timing chart for loading and unloading a watt-hour meter in a conventional instrumental difference test apparatus, and shows a case where test conditions 1 to 5 are sequentially executed after collecting five meters. It is. The instrumental difference test unit has 5 lanes, the processing time for the first five watt-hour meters is 130 seconds, and the total processing time for ten watt-hour meters is 240 seconds. Here, not only the standby time (stopped at the staying buffer) occurs in the two units that flowed while the test is being performed on the first five watt-hour meters, but they are also carried into the instrumental difference test unit. However, waiting time will occur for the other four units until the next five units are ready. That is, the test cannot be performed until five watt-hour meters are prepared in the instrumental difference test unit.

FIG. 20B is a timing chart for carrying in / out the watt hour meter in the instrumental difference test apparatus of the present invention, and shows a case where test conditions 1 to 5 are sequentially executed by the free flow method.
When the watt hour meter is carried into the instrument difference test section, the test is started without waiting for another watt hour meter, and each watt hour meter is carried out after 50 seconds from the start. That is, when one watt-hour meter is carried into the instrument difference test unit, the test is performed without waiting for another watt-hour meter (testing from one unit is possible). The total processing time for 10 watt-hour meters is 240 seconds as in the previous case, but since there are three instrumental difference test units operating simultaneously, it is sufficient to prepare three lanes. . If restrictions such as test conditions and conveyor speed are expected, a retention buffer may be provided.
In this way, by performing the test with the free flow method, it is not necessary to make the test unit stand by with several watt-hour meters on it, and the required number of power supply circuits and carry-in units is also increased. In addition, the test apparatus can be reduced in size and cost.

  As mentioned above, although preferable embodiment of this invention was described, the technical scope of this invention is not limited to description of the said embodiment. Various modifications and improvements can be added to the above embodiment. The form which added such a change or improvement is also contained in the technical scope of the present invention.

1: watt-hour meter automatic inspection devices 2a-2d: current connection terminals 3a-3c: voltage connection terminal 4: current terminal connection shaft 5: current terminal fixing blocks 6a-6b: penetration shaft (unit drive shaft)
7: fixed plate 8: fixed block 9: movable block 10: rotation stop pin 11: stopper 12 for adjustment: elastic member 13: voltage connection rising / lowering drive cylinder 14: movable plate 15: current line connecting portions 20a to 20d: conduction Rod 21: Fixing member 22: Penetrating pin 30: Transport pallet 31: Attachment 32: Communication terminal connector 33: Communication terminal connection pad 34: Retraction hook insertion hole 35: Connector positioning hole 36: Mounting plate 40: Transport device 41: Discharge conveyor 50: watt hour meter 51: watt hour meter main body 52: current terminal 53: voltage terminal 54: communication connector 61: (test device side) short bar 62: elastic member 63: contact part 64: insulating member 65: soft lead 70: (for high voltage) contact probe 71: (for high voltage) current probe 72: insulating materials 73a to 73b: (for high voltage) voltage probe 100: (for rated voltage / current) Automatic connector unit 101: Single-phase / three-phase three-wire 60A connector 102: Single-phase / three-phase three-wire 120A connector 103: Single-phase two-wire 30A Connector 104a-104c: conveying pallet positioning pin 105: current connection opening / closing drive cylinder 106: frame 107: conductive contact pin for communication terminal connection 108: connector pressing plate 109: current terminal insertion gaps 116a-116c, 117a-117c :switch

Claims (12)

A transport device for transporting the watt-hour meter;
One or more test devices for performing insulation / withstand voltage test, rating setting, function test, instrumental error adjustment and / or instrumental error test provided along the conveying device;
An automatic connector unit for automatically connecting the test apparatus and a plurality of types of box-type electricity meters;
A power supply;
A control device,
The automatic wire connection unit includes a plurality of wire connection devices, and the plurality of wire connection devices each include a plurality of current connection terminals and a plurality of voltage connection terminals;
Wherein the controller, the auto test a plurality of types of boxes type watt meter with test equipment, power meter automatic inspection apparatus characterized by automatically separating the good and defective products by the transport device. The wattmeter automatic inspection device according to claim 1 , wherein the current connection terminal of the connector is formed of a rectangular parallelepiped member that is connected to a conductive rod extending vertically and has corners chamfered. The wattmeter automatic inspection device according to claim 1 or 2 , wherein the plurality of connectors are configured to include a rotation mechanism that allows a plurality of current connection terminals to rotate by a predetermined angle in the horizontal direction. The plurality of connectors are provided with a tilt mechanism that allows a plurality of current connection terminals to take a vertical posture and a tilt posture,
The tilt mechanism adjusts the shaft for connecting the plurality of current connection terminals in the horizontal direction, the plurality of elastic members connected to the plurality of current connection terminals, and the inclination angle of the plurality of current connection terminals, respectively. The watt-hour automatic inspection device according to any one of claims 1 to 3, wherein the watt-hour meter automatic inspection device is provided. The automatic wire connection unit is composed of a plurality of automatic wire connection units having a current circuit short-circuit mechanism that bypasses the connection between the wire connection device and the power supply device,
In the case where one or more connector units are connected to the watt hour meter and the one or more connector units are not connected to the watt hour meter, the control device is not connected to the watt hour meter. vessel unit and one of the power meter automatic inspection apparatus according to claim 1 to 4 the connection between the power unit and wherein the bypassing by the current short-circuit mechanism. In addition, equipped with a transport pallet that can be equipped with multiple types of box-type electricity meters,
The wattmeter automatic inspection device according to any one of claims 1 to 5 , wherein the controller automatically connects the automatic connector unit and the transport pallet by the transport device. 7. The watt-hour meter automatic inspection device according to claim 6 , wherein the transport pallet is detachably mountable with an attachment corresponding to a watt-hour standard. The test apparatus includes a test apparatus for performing an insulation / withstand voltage test,
The watt-hour meter according to any one of claims 1 to 7 , wherein the test apparatus includes a wire connection device including a voltage probe having a fitting portion constituted by a plurality of metal members facing each other and a current probe. Automatic inspection device. The test apparatus includes a lane composed of a plurality of test apparatuses for performing instrument difference adjustment or instrument difference test,
The control device is
A carrying-in process in which the carrying device sequentially carries the received watt-hour meter into an empty lane;
A process of detecting that the watt hour meter has been carried into the lane and automatically connecting the watt hour meter to the test device;
A test process in which AC power is supplied from the power supply device to the watt hour meter based on a plurality of test conditions, and a test is performed.
An unloading process for unloading watt-hour meters that have completed all of the test conditions from the lane,
In the test step, AC power is supplied in a cycle based on the same reference time in all lanes, and the same test conditions are implemented in the same cycle in all lanes where a watt hour meter exists. The watt-hour meter automatic inspection device according to any one of claims 1 to 8 . A power meter automatic inspection method using any of the energy meter automatic inspection apparatus according to claim 1 to 8,
The test apparatus includes a lane composed of a plurality of test apparatuses for performing instrument difference adjustment or instrument difference test,
A carrying-in process in which the carrying device sequentially carries the received watt-hour meter into an empty lane;
A process of detecting that the watt hour meter has been carried into the lane and automatically connecting the watt hour meter to the test device;
A test process in which AC power is supplied from the power supply device to the watt hour meter based on a plurality of test conditions, and a test is performed.
An unloading step of unloading the watt hour meter that has completed all of the plurality of test conditions out of the lane,
In the test process, AC power is supplied in a cycle based on the same reference time in all lanes, and the same test conditions are implemented in the same cycle in all lanes where a watt hour meter exists. A watt-hour meter automatic inspection method. It is an automatic connector mounted on a watt-hour automatic inspection device that includes one or more test devices, a power supply device, and a control device, and automatically tests a plurality of types of box-type watt-hour meters using the test device. ,
A current connecting terminal (2) connected to the upper part, a conductive bar provided with a current line connecting part in the lower part, a movable member connected to a plurality of conductive bars, a current connection cylinder for reciprocating the movable member, A current terminal connection portion comprising: a rotation mechanism that allows a plurality of conducting bars to rotate in a horizontal direction by a predetermined angle; and a tilting mechanism that enables the plurality of conducting bars to take a vertical posture and an inclined posture;
A voltage terminal connection portion comprising: a fixed member provided with a plurality of voltage connection terminals (3); a voltage connection cylinder that moves between an ascending position and a descending position; and a movable member that connects the fixing member and the drive cylinder;
An automatic wire connector characterized by comprising an electric wire. This automatic connection unit is equipped with one or more test devices, a power supply device, and a control device, and is installed in an automatic energy meter inspection device that automatically tests multiple types of box-type electricity meters using the test device. And
Equipped with multiple automatic connection devices corresponding to multiple types of electricity meters with different terminal arrangements,
A part or all of the plurality of automatic wire connectors
A current connecting terminal (2) connected to the upper part, a conductive bar provided with a current line connecting part in the lower part, a movable member connected to a plurality of conductive bars, a current connection cylinder for reciprocating the movable member, A current terminal connection portion comprising: a rotation mechanism that allows a plurality of conducting bars to rotate in a horizontal direction by a predetermined angle; and a tilting mechanism that enables the plurality of conducting bars to take a vertical posture and an inclined posture;
A voltage terminal connection portion comprising: a fixed member provided with a plurality of voltage connection terminals (3); a voltage connection cylinder that moves between an ascending position and a descending position; and a movable member that connects the fixing member and the drive cylinder;
An automatic connector unit, characterized by comprising a.