JP5905269B2 - Terminal block device - Google Patents

Description

  The present invention relates to a terminal block device, and more particularly to a terminal block device provided in a portable generator or switchboard used outdoors.

  For example, in a portable engine generator, a box-shaped terminal block chamber with an open front is formed on the wall surface of a casing that houses the generator, engine, etc., and power is generated by the generator on the rear wall of the terminal block chamber. A plurality of output terminals for outputting electricity are provided, and an external power cable is connected to each of the plurality of output terminals. In addition, the front opening of the terminal block room is provided with a terminal block cover that can be opened and closed while preventing the hand from touching the output terminal during operation of the generator and preventing rainwater from entering the terminal block room. It has been. As a method for opening and closing the terminal block cover, there is one that employs an opening and closing method in which the terminal block cover is supported by a horizontal hinge shaft so as to be slightly below the upper end of the terminal block cover (see, for example, Patent Document 1).

JP 2011-30319 A

  The terminal block cover described in Patent Document 1 has a small amount of protrusion to the outside of the casing when it is opened, rainwater is not applied to the hinge portion, and the rain performance when the terminal block cover is closed is also good. Although there are advantages, depending on the size of the terminal block room, the shape of the terminal block cover, the position of the hinge shaft, etc., if the terminal block cover is fully opened in the rain, rainwater on the upper surface of the terminal block cover Sometimes it flowed down into the room.

  Accordingly, an object of the present invention is to provide a terminal block device that can prevent rainwater on the upper surface of the terminal block cover from flowing into the terminal block chamber even when the terminal block cover is fully opened in the rain.

In order to achieve the above object, the terminal block device of the present invention is provided with a terminal block having a plurality of output terminals on the rear wall of a box-shaped terminal block chamber whose front surface is open , and on the front surface of the terminal block chamber, Supported by a horizontal hinge shaft provided on the upper side, the lower portion of the hinge shaft rotates outwardly of the terminal block chamber, and the upper portion of the hinge shaft rotates inward of the terminal block chamber. The terminal block device is provided with a terminal block cover that opens and closes the front opening of the terminal block chamber so that the terminal block cover is openable and closable. A vertical gutter communicating with an end portion is provided, and when the terminal block cover is opened, the upper end of the terminal block cover abuts against the horizontal gutter, thereby restricting rotation of the terminal block cover in the opening direction; and The water on the upper surface of the terminal block cover flows down to the side wall, Of water it is characterized by a state flowing down to the lower portion of the terminal block chamber through the downpipe.

  According to the terminal block device of the present invention, when the terminal block cover is fully opened in the rain, the rain water on the upper surface of the terminal block cover is a recumbent provided at the upper end of the terminal block cover or the upper portion of the rear wall of the terminal block chamber. The terminal wall of the terminal block room provided with the terminal block flows down to the vertical wall provided on the side wall of the terminal block room and then flows down to the lower part of the terminal block room. Rainwater can be prevented from entering the side. Further, since the upper end of the vertical rod restricts the movement of the terminal block cover in the opening direction, it is not necessary to separately provide a regulating member for regulating the fully opened position. Furthermore, it can prevent reliably that the upper part of a terminal block cover and an output terminal contact, and it can also prevent that an output terminal gets wet with rain water.

It is II sectional drawing of FIG. It is a principal part expanded sectional view of the terminal block apparatus which shows a reference example. It is a front view of a terminal block device similarly. Similarly it is principal part sectional drawing of a terminal block apparatus. It is VV sectional drawing of FIG. It is VI-VI sectional drawing of FIG. It is a front view of the terminal block apparatus which shows the 1st form example of this invention. It is VIII-VIII sectional drawing of FIG. It is a front view of the terminal block apparatus which shows the 2nd form example of this invention.

1 to 5 show reference examples of a terminal block device for an engine generator. The portable engine generator 11 contains a generator (not shown) and an engine for driving the generator in a casing 12, and a terminal block device 13 is provided at the upper part of the casing 12 on the generator side. .

  The terminal block device 13 includes a terminal block chamber 14 installed on the front wall 12 a of the casing 12 and a terminal block cover 15 provided on the front surface of the terminal block chamber 14 so as to be opened and closed. The terminal block chamber 14 is a box-shaped recess formed from the front wall 12a of the casing 12 toward the inside of the casing, and the rear wall 14a of the terminal block chamber 14 is gradually inclined outward from the upper side to the lower side. The upper and lower two upward inclined plates 14b and 14c, and the connecting plate 14d provided between the lower end of the upper upward inclined plate 14b and the lower upward inclined plate 14c are stepped. On the upper upward inclined plate 14b, a terminal block 17 on which two sets of single-phase output terminals 16 are arranged is attached with four bolts 18, and the upper portion of the lower upward inclined plate 14c. The terminal block 20 on which a set of four output terminals 19 of a three-phase four-wire system is arranged is attached with bolts 21, and two single-phase outlets 22 are screwed to the lower part. . The side walls 14e, 14e of the terminal base chamber 14 are respectively provided with vertical hooks 23, 23 extending from a position above the upper end of the terminal base 17 to the lower side of the single-phase outlet 22, from the upper end of the vertical base 23. On the front opening side, hinge portions 24 that support the terminal block cover 15 so as to be openable and closable are provided to face both side walls.

  The terminal block cover 15 is provided with a horizontal reed 25 at the upper end, and the hinge plate 24 a of the hinge part 24 is provided at both ends below the reed 25. The hinge plate 24a is rotatably attached to both side walls 14e and 14e of the terminal base chamber 14 by bolts that become hinge shafts 26 and 26, respectively. The vertical dimension of the terminal block cover 15 is shorter than the vertical dimension of the opening of the terminal block chamber 14, and each output terminal 16, between the lower end of the terminal block cover 15 and the lower end portion of the terminal block chamber 14 is formed. 19 and a cable outlet 27 through which a power cable connected to the outlet 22 is drawn out. The terminal block cover 15 is inserted from the cable outlet 27, and the lower portion of the terminal block cover 15 is pulled forward and rotated upward, so that the lower portion of the terminal block cover 15 from the horizontal hinge shaft 26 connecting the hinge portions 24 is lower. The terminal block chamber 14 can be rotated outward, and the upper part of the hinge shaft can be rotated inward of the terminal block chamber 14 to open the front opening of the terminal block chamber 14.

  At this time, since the horizontal bar 25 abuts against the upper end portion of the vertical bar 23, the rotation of the terminal block cover 15 in the opening direction can be controlled without providing a separate regulating member. It is possible to prevent the upper end portion from contacting the upper output terminal 16. Further, when the portable engine generator 11 is used outdoors in the rain, the terminal block cover 15 is fully opened, and the upper surface of the terminal block cover 15 is inclined downward toward the upper end portion. Even if it flows down in the direction of the terminal block chamber 14, it is possible to receive the rainwater flowing down by the horizontal bar 25 and flow down below the terminal block room 14 through the vertical bar 23 communicating with both ends of the horizontal bar 25. Rainwater can be prevented from flowing into the terminal block chamber 14. Thereby, it can prevent that the output terminals 16 and 19 and the electrical outlet 22 get wet with water, and electric leakage generate | occur | produces.

6 and 7 show a first embodiment of the present invention. Components that are the same as those in the reference example are given the same reference numerals, and detailed descriptions thereof are omitted.

  The engine generator according to the present embodiment is provided with the horizontal rod 30 above the terminal block 17 of the terminal block chamber 14 and the vertical rods 31 and 31 communicating with the horizontal rod 30 on both sides. The terminal block cover 32 is formed in a flat plate shape, and hinge plates 32 a and 32 a provided on both upper side portions are hinged to both side walls 14 e and 14 e of the terminal block chamber 14, respectively. The horizontal bar 30 includes an attachment portion 30a fixed to the ceiling wall 14f of the terminal base chamber 14, an extension portion 30b extending downward from the attachment portion 30a in parallel with the upper upward inclined plate 14b, and the extension portion 30b. On the front side of the lower end of the protruding portion 30b, both ends are connected to the upper end portion of the vertical rod 31, and the flange portion 30c is disposed at a position where the upper end of the terminal block cover 32 abuts when fully opened.

As in the above-described reference example , when the terminal block cover 32 is opened by pulling the lower portion of the terminal block cover 32 toward the front, the upper end of the terminal block cover 32 comes into contact with the upper end of the front side of the horizontal bar 30 and rotates in the opening direction. The movement is restricted, and rainwater flowing down the upper surface of the terminal block cover 32 toward the upper side can be received by the horizontal rod 30 and discharged from the vertical rod 31 to the lower portion of the terminal block chamber 14.

FIGS. 8 and 9 show a second embodiment of the present invention. Components that are the same as those in the reference embodiment and the first embodiment are denoted by the same reference numerals, and detailed descriptions thereof are given. Description is omitted.

  In this embodiment, the horizontal bar 33 has an attachment part 33a fixed to the upper part of the terminal wall 17 of the rear wall 14b of the terminal base chamber 14, the both ends continuous with the upper end part of the vertical bar 31, and the front end part being the terminal block. And a flange 33b for restricting the rotation of the cover 32. Also in this embodiment, rotation of the terminal block cover 32 in the opening direction can be restricted by the horizontal rod 33 and rainwater on the upper surface of the terminal block cover 32 is received by the horizontal rod 33 from the vertical rod 31 to the lower portion of the terminal block chamber 14. Can be discharged.

  In each of the above embodiments, the present invention is described as being applied to a terminal block device of a portable engine generator. However, the present invention can also be applied to other generators and switchboards. Further, the vertical gutter may be provided only on one side of the terminal block room.

  DESCRIPTION OF SYMBOLS 11 ... Engine generator, 12 ... Casing, 12a ... Front wall, 13 ... Terminal block device, 14 ... Terminal block room, 14a ... Rear wall, 14b, 14c ... Upward inclined plate, 14d ... Connecting plate, 14e ... Side wall, 14f ... ceiling wall, 15 ... terminal block cover, 16 ... output terminal, 17 ... terminal block, 18 ... bolt, 19 ... output terminal, 20 ... terminal block, 21 ... bolt, 22 ... outlet, 23 ... downpipe, 24 ... hinge 24a ... Hinge plate, 25 ... Recumbent, 26 ... Connection bolt, 27 ... Cable outlet, 30 ... Recumbent, 30a ... Mounting portion, 30b ... Extension, 30c ... Reed, 31 ... Vertical reed, 32 ... Terminal block Cover, 33 ... Bridge, 33a ... Mounting portion, 33b ... Bridge

Claims (1)

A terminal block having a plurality of output terminals is provided on the rear wall of the box-shaped terminal block chamber having an open front, and is supported by a horizontal hinge shaft provided on the upper side on the front surface of the terminal block chamber. A terminal block cover that pivots outward from the terminal block chamber from the hinge shaft and pivots upward from the hinge shaft to the inside of the terminal block chamber to open the front opening of the terminal block chamber. In the terminal block device provided to be openable and closable, a horizontal gutter is formed at an upper portion of the terminal block chamber, a vertical gutter is formed on a side wall of the terminal block chamber and communicated with an end of the horizontal gutter, and the terminal block cover is opened. When the upper end of the terminal block cover comes into contact with the recumbent, rotation of the terminal block cover in the opening direction is restricted, and water on the upper surface of the open terminal block cover flows down to the recumbent Then, the water of the recumbent water flows to the lower part of the terminal block room through the vertical reed. Terminal block apparatus characterized by being formed in a state of.

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