WO2019159553A1

WO2019159553A1 - Terminal block device and terminal block component

Info

Publication number: WO2019159553A1
Application number: PCT/JP2018/048139
Authority: WO
Inventors: 智高盛
Original assignee: オムロン株式会社
Priority date: 2018-02-13
Filing date: 2018-12-27
Publication date: 2019-08-22
Also published as: JP2019139989A

Abstract

Provided are a terminal block device, which can suppress rocking of a wire attached to a connected terminal, and a terminal block component. This terminal block device 1 comprises a terminal block 2, to which a terminal 4 can be connected, and a terminal block component 3 to which the terminal block 2 can be attached. The terminal block 2 comprises an insertion part 211 which locks the terminal 4 by being inserted into the terminal 4. The terminal block component 3 comprises a restriction part 30 which protrudes in the direction of a wire 40 attached to the terminal 4 that has been locked by the insertion part 211, and which restricts the wire 40 attached to the locked terminal 4 from rocking in a circumferential direction having the insertion part 211 as the axis thereof.

Description

Terminal block device and terminal block parts

The present invention relates to a terminal block device including a terminal block in which a terminal can be attached and detached, a terminal block device that can be attached to the terminal block, and a terminal block component.

In electrical equipment such as switchboards, machine tools, and PV (photovoltaic power generation) equipment, terminal blocks are used to connect terminals provided at the ends of various wires such as power lines and signal lines. As a basic technique for connecting a terminal to a terminal block, a structure in which the terminal is fixed to the terminal block by screwing and the terminal is removed by removing the screw is general.

And various terminal blocks have been proposed to improve operability related to screwing and unscrewing. For example, in the terminal block disclosed in Patent Document 1, a pressing plate is fixed to a rod having a knob portion, and a convex portion which is a tip of the rod is inserted into a hole of a terminal, and the terminal plate is connected between the pressing plate and the connection fitting. In order to hold the terminal, a coil spring is provided.

Patent Document 2 discloses a terminal block device in which a protective cover is attached to the terminal block.

JP-A-9-161868 JP 2009-301790 A

However, in the terminal block into which the tip of the rod is inserted as described in Patent Document 1, there is a risk that the terminal swings around the rod. The swinging of the terminal may cause an abnormality such as fine sliding wear at the contact portion between the terminal and the terminal block. If fine sliding wear occurs due to repeated swinging of the terminal at the contact portion between the terminal and the terminal block, wear powder may be generated on the plating surface of the contact portion to oxidize. Oxidation of the contact portion, i.e., the contact, causes an increase in contact resistance, which may eventually lead to contact failure.

The terminal block device described in Patent Document 2 mentions improvements in worker safety and wiring work efficiency as issues to be improved in the prior art. Swing has not been studied.

This invention is made | formed in view of such a situation, and it aims at provision of the terminal block apparatus which can suppress rocking | fluctuation of a wire.

Another object is to provide terminal block parts that can be used in the terminal block device according to the present invention.

In order to solve the above problems, a terminal block device described in the present application is a terminal block device including a terminal block to which a terminal to which a wire is attached can be connected and a terminal block component that can be attached to the terminal block. Is provided with an insertion portion for locking the terminal by being inserted into the terminal, and the terminal block component protrudes in the direction of the wire attached to the terminal locked at the insertion portion and is locked The wire rod attached to the terminal includes a restricting portion that restricts swinging in a circumferential direction with the insertion portion as an axis.

Further, in the terminal block device described in the present application, the restricting portion provided in the terminal block part has a bent piece bent toward the wire material side to be controlled to swing.

Further, in the terminal block device described in the present application, the terminal block includes a plurality of insertion portions arranged side by side, and the restriction portion protrudes from between the insertion portions arranged side by side, and the restriction The bent piece of the portion is bent and bent toward each wire rod attached to a terminal locked to the insertion portion located on both sides of the base of the restricting portion.

Further, in the terminal block device described in the present application, the protruding end of the restricting portion provided in the terminal block component is formed to be separable from the root side.

Further, in the terminal block device described in the present application, the terminal block is capable of connecting a plurality of terminals with a single swing axis, and the restricting portion has a plurality of terminals connected with a single swing axis. It is characterized in that it is formed so as to be separable for each tip portion at a position corresponding to a wire attached to one of the terminals.

Further, in the terminal block device described in the present application, the terminal block includes a display unit that displays a terminal locking state, and the terminal block component is formed so that the display unit can be visually recognized from the outside. And

Further, in the terminal block device described in the present application, the terminal block includes a protruding portion that receives an operation from the outside with respect to the insertion portion, the terminal block component has an operation hole for operating the protruding portion, and The protrusion is formed so as to include the protrusion.

Furthermore, the terminal block component described in the present application is a terminal block component that can be attached to a terminal block having an insertion portion that locks the terminal by being inserted into a terminal to which a wire is attached, and at the insertion portion of the terminal block. Providing a restricting portion that protrudes in the direction of the wire attached to the locked terminal and restricts the wire attached to the locked terminal from swinging in the circumferential direction about the insertion portion. It is characterized by.

The terminal block device and terminal block parts described in the present application regulate the swinging of the wire attached to the terminal by the regulating unit.

The terminal block device and the terminal block component according to the present invention regulate the swing of the wire rod around the insertion portion that locks the terminal by being inserted into the terminal by the restricting portion protruding from the terminal block component.

It is a schematic perspective view which shows an example of the external appearance of the terminal block apparatus described in this application. It is a schematic perspective view which shows an example of the external appearance of the terminal block apparatus described in this application. It is a schematic plan view which shows an example of the external appearance of the terminal block apparatus described in this application. It is a schematic perspective view which shows an example of the external appearance of the terminal block used for the terminal block apparatus of this application description. It is a schematic perspective view which shows an example of the external appearance of the terminal block used for the terminal block apparatus of this application description. It is an external appearance perspective view which shows an example of the terminal which can be used with respect to the terminal block used for the terminal block apparatus of this application description. It is an external appearance perspective view which shows an example of the terminal which can be used with respect to the terminal block used for the terminal block apparatus of this application description. It is a schematic perspective view which shows the example of a part of internal structure of the terminal block used for the terminal block apparatus of this application description. It is a schematic external view which shows an example of the external appearance of the movable member of the terminal block used for the terminal block apparatus of this application description. It is a schematic perspective view which shows an example of the external appearance of the terminal block components used for the terminal block apparatus of this application description. It is a schematic perspective view which shows an example of the external appearance of the terminal block components used for the terminal block apparatus of this application description. It is a schematic perspective view which shows an example of the external appearance of the terminal block components used for the terminal block apparatus of this application description. It is a schematic perspective view which shows an example of the external appearance of the terminal block components used for the terminal block apparatus of this application description.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

<Application example>
The terminal block device described in the present application is configured using a terminal block and terminal block components. The terminal block used in the terminal block device described in the present application can insert and remove terminals such as round terminals provided at the ends of various wire rods such as power lines and signal lines in electrical equipment such as switchboards, machine tools, and PV equipment. Applicable as a terminal block. The terminal block components used in the terminal block device described in the present application are applied as terminal block components such as a terminal block cover that can be attached to the terminal block.

<Configuration example>
FIG.1 and FIG.2 is a schematic perspective view which shows an example of the external appearance of the terminal block apparatus 1 described in this application. FIG. 3 is a schematic plan view showing an example of the appearance of the terminal block device 1 described in the present application. FIG. 1 shows the external appearance of the terminal block device 1 described in the present application from the perspective from the upper front side, and FIG. 2 shows the external appearance of the terminal block device 1 described in the present application from the rear diagonal view. In the following description, the directions of the terminal block device 1 and the terminal block 2 and the terminal block component 3 are as follows. However, it is a direction for convenience of explanation, and does not limit the direction when the terminal block device 1 is used. In the terminal block device 1 described in the present application, a terminal block component 3 used as a terminal block cover from above is attached to a terminal block 2 to which a terminal 4 can be connected.

The terminal block device 1 described in the present application has a substantially rectangular parallelepiped shape, and the terminals 4 can be connected to the left and right side surfaces. Further, on the front side surface and the rear side surface of the terminal block device 1, a restricting portion 30 that restricts the swinging of the wire 40 attached to the connected terminal 4 protrudes. The restricting portion 30 is formed on the terminal block component 3. Details of the restriction unit 30 will be described later.

<Terminal block 2>
Next, the terminal block 2 used for the terminal block apparatus 1 is demonstrated. FIG.4 and FIG.5 is a schematic perspective view which shows an example of the external appearance of the terminal block 2 used for the terminal block apparatus 1 described in this application. FIG. 4 shows the external appearance of the terminal block 2 described in the present application from the perspective from the upper front, and FIG. 5 shows the external appearance of the terminal block 2 described in the present application from the perspective from the lower rear.

The terminal block 2 described in the present application includes a housing 20 having a substantially rectangular parallelepiped shape, and fitting grooves 200 used when attaching the terminal block component 3 are formed on the front and rear surfaces of the housing 20. Yes.

The left and right side surfaces of the casing 20 of the terminal block 2 are provided with two insertion openings 201 into which the terminals 4 can be inserted, for a total of four places. The terminals 4 inserted into the insertion openings 201 provided at the opposite positions on the left and right side surfaces are electrically connected by a connection member 22 (see FIG. 8 and the like) disposed inside. That is, two connection members 22 are arranged on the terminal block 2 illustrated in FIGS. 1 to 3, and each terminal 4 is electrically connected by a connection set by the connection members 22.

In each insertion opening 201 opened in the housing 20, terminal receiving portions 220 are formed in two upper and lower stages as slots to which the terminals 4 can be connected. Further, a shielding member 23 that moves up and down is disposed outside the terminal receiving portion 220 formed in the lower stage, and the lower terminal receiving portion 220 is shielded or opened by the movement of the shielding member 23.

Four insertion holes 202 are formed on the upper surface of the casing 20 of the terminal block 2, and the protruding portions 210 of the movable member 21 protrude from the insertion holes 202 to the outside of the casing 20. The protruding portion 210 of the movable member 21 has a cylindrical shape and is used as a push button that can be pressed to the inside of the housing 20. The left and right side surfaces of the columnar protruding portion 210 are formed with a display portion 210a that is a rectangular surface, and the rectangular surface that becomes the display portion 210a is colored in a conspicuous color such as green or silver. ing. The display unit 210a has a function of displaying the position of the movable member 21 that is movable up and down, and the user visually recognizes the exposure state of the colored display unit 210a, whereby the position of the protruding portion 210 of the movable member 21 is displayed. Can be recognized. Further, a visual aid groove 203 is engraved on the upper surface of the housing 20 as a groove-shaped notch at a position corresponding to the display portion 210a around the insertion hole 202 so that the display portion 210a can be easily seen. Has been. The surface of the bottom part of the engraved visual aid groove 203 is a reflection part 203a that has been subjected to processing such as mirror finishing. Since the color of the exposed display part 210a is reflected by the reflecting part 203a of the visual recognition assisting groove 203, the user can visually recognize the display part 210a indirectly, and it becomes easy to visually recognize the exposure state of the display part 210a. The display unit 210a is largely exposed from the housing 20 when the movable member 21 is positioned on the upper side than when the movable member 21 is positioned on the lower side. That is, as the movable member 21 moves from the upper side to the lower side, the display part 210a that has been largely exposed is hidden in the housing 20, or the exposed part becomes smaller.

Furthermore, at the left and right lower ends of the casing 20 of the terminal block 2, an insertion port 204 into which the lower end of the restriction portion 30 of the terminal block component 3 is inserted is provided.

FIG. 6 is an external perspective view showing an example of the terminal 4 that can be used for the terminal block 2 used in the terminal block device 1 described in the present application. As shown in FIG. 6, the terminal 4 that can be attached to and detached from the terminal block 2 is attached to the tip of a wire 40 such as a power line or a signal line, for example, in a crimped state. Here, as the shape of the terminal 4, a flat plate-shaped round terminal having a locking hole 41 is illustrated, but the terminal 4 is not limited to this, and the terminal 4 having a rectangular shape in plan view is partially opened. Various shaped terminals 4 such as a C-shaped terminal 4 and a U-shaped terminal 4 can be used. The terminal 4 portion is formed of a conductor such as a metal, and the wire rod 40 portion is formed by covering one or a plurality of conductors such as a metal wire with a single or multiple insulators.

FIG. 7 is an external perspective view showing an example of the terminal 4 that can be used for the terminal block 2 used in the terminal block device 1 described in the present application. FIG. 7 shows a crossover bar (crossover metal fitting) in which a plurality of terminals 4 arranged in parallel are connected as another form of the terminals 4. The transition bar is formed by connecting a plurality of terminals 4 with a metal conductor and covering the metal conductor with an insulator such as a hard resin. The shape of the terminal 4 portion of the crossing bar illustrated in FIG. 7 exemplifies a flat plate-shaped round terminal having a locking hole 41, but is not limited thereto, and the terminal 4 having a rectangular shape in plan view, It is possible to use various terminals 4 such as a C-shaped terminal 4 and a U-shaped terminal 4 partially opened. Further, FIG. 7 shows a cross bar connecting two terminal receiving portions 220. However, when there are three or more terminal receiving portions 220 arranged side by side, a cross bar connecting three or more terminals 4 is used. It is also possible to do.

Next, the internal structure of the terminal block 2 will be described. FIG. 8 is a schematic perspective view showing an example of a part of the internal structure of the terminal block 2 used in the terminal block device 1 described in the present application. FIG. 8 shows the structure and arrangement of various members housed in the housing 20 from the perspective from above, with the housing 20 of the terminal block 2 removed. In order to make the internal structure easy to understand, FIG. 8 shows only the structure of one connection set by one connection member 22, but in the terminal block 2 illustrated in FIGS. Two connection members 22 similar to the connection member 22 illustrated in FIG. 8 are disposed, and the same connection set structure is formed.

In the housing 20 of the terminal block 2, a plate-like connecting member 22 that is electrically connected to the terminal 4 inserted from the insertion port 201 is accommodated. The connection member 22 is formed of a conductor such as a metal material having a rectangular plate shape, and has a through hole 221 having a circular shape in plan view in the vicinity of both ends in the longitudinal direction. On the upper surface side of the connection member 22, a presser fitting 222 is provided as an accessory of the connection member 22. The presser fitting 222 has a shape in which a metal plate having substantially the same shape as that of the connection member 22 is bent in an arc shape in the surface direction. An upper terminal receiving portion 220 is formed by the upper surface of the connection member 22 and the presser fitting 222 disposed on the upper surface side. Then, the terminal 4 inserted into the terminal receiving portion 220 is pressed against the upper surface of the connection member 22 by the presser fitting 222 and is held in a state of being electrically connected to the connection member 22. Further, a pressing metal fitting 222 is also provided on the lower surface side of the connection member 22, and a lower terminal receiving portion 220 is formed by the lower surface of the connection member 22 and the pressing metal fitting 222 provided on the lower surface side. Has been. Then, the terminal 4 inserted into the lower terminal receiving portion 220 is pressed against the lower surface of the connection member 22 by the presser fitting 222 and is held in a state of being electrically connected to the connection member 22. The connection member 22 is formed with terminal receiving portions 220 at both ends, and can electrically connect the terminal 4 inserted on the left end side and the terminal 4 inserted on the right end side. Moreover, the terminal 4 inserted in the upper terminal receiving part 220 and the terminal 4 inserted in the lower terminal receiving part 220 can be electrically connected. In addition, in FIG. 8, the terminal 4 to which the wire 40 was attached is connected to the upper terminal receiving part 220, and the cross bar terminal 4 is inserted into the lower terminal receiving part 220. .

In FIG. 8, the insertion portion 211 of the movable member 21 is inserted into the locking holes 41 of the upper and lower terminals 4 inserted into the terminal receiving portion 220, and both the terminals 4 are locked by the insertion portion 211. It shows the state. The movable member 21 is movable up and down, and an urging member such as a compression coil spring that urges the movable member 21 upward is disposed below the movable member 21. When the movable member 21 moves upward, the insertion portion 211 of the movable member 21 is inserted into the locking hole 41 of the terminal 4 to lock the terminal 4, and when the movable member 21 moves downward, the insertion portion The lock by 211 is released.

Furthermore, the casing 20 of the terminal block 2 accommodates a shielding member 23 that can shield the lower terminal receiving portion 220. The shielding member 23 has a substantially rectangular plate shape and is movable up and down. When the shielding member 23 is positioned above, the shielding member 23 shields the terminal receiving portion 220 and moves downward to open the terminal receiving portion 220. An urging member such as a compression coil spring that urges the shielding member 23 upward is disposed inside the shielding member 23 (on the movable member 21 side).

The movable member 21 will be described in further detail. FIG. 9 is a schematic external view showing an example of the external appearance of the movable member 21 of the terminal block 2 used in the terminal block device 1 described in the present application. FIG. 9A is a plan view, and FIG. 9B is a front view. The movable member 21 has a substantially J-shape in which the lower ends of a columnar protrusion 210 and a columnar insertion portion 211 having a shorter axial length than the protrusion 210 are connected by a plate-like connecting portion 212. It has a shape. In addition, the movable member 21 has a pressing portion 213 that protrudes toward the shielding member 23 in the vicinity of the lower end of the insertion portion 211 and abuts on the inner surface of the shielding member 23 and presses downward.

Then, when the user presses the protruding portion 210 of the movable member 21, the movable member 21 moves downward. When the movable member 21 moves downward, the shielding member 23 is also pushed downward by the pressing portion 213 of the movable member 21, so that the shielding member 23 also moves downward. In this state, the terminal 4 can be inserted into the upper and lower terminal receiving portions 220. Since the insertion portion 211 of the movable member 21 has a tapered surface with respect to the insertion direction of the terminal 4, the terminal 4 is pushed into the terminal receiving portion 220 when inserted into the upper terminal receiving portion 220. Also by this, since the movable member 21 moves downward, the terminal 4 can be inserted. When the terminal 4 is inserted into the terminal receiving portion 220, the inserted terminal 4 is superimposed on the connection member 22, and the locking hole 41 of the terminal 4 and the through hole 221 of the connection member 22 are in communication with each other. The movable member 21 locks the terminal 4 by inserting the insertion portion 211 of the movable member 21 into the locking hole 41 of the terminal 4 and the through hole 221 of the connecting member 22 that are in the communication state.

Such members such as the movable member 21 and the shielding member 23 are arranged for each insertion port 201, and a connection member 22 for connecting the terminals 4 inserted from the pair of left and right insertion ports 201 is arranged. It is installed. Therefore, in the terminal block 2 illustrated in the present application in which a plurality of insertion openings 201 are opened on each side surface, a plurality of insertion portions 211 for locking the inserted terminals 4 are also arranged.

As described above, the terminal block 2 used in the terminal block device 1 described in the present application engages one or a plurality of terminals 4 by inserting the insertion portion 211 of the movable member 21 into the locking hole 41 of the terminal 4. Can be stopped. The terminal 4 is fixed because it is pressed by the presser fitting 222. However, when a large stress is applied, the terminal 4 may swing in the circumferential direction with the insertion portion 211 as an axis. That is, the terminal block 2 can be connected to a plurality of terminals 4 with the axis of swinging by the insertion portion 211 of the movable member 21. The swinging of the wire 40 attached to the terminal 4 locked by the insertion portion 211 in the circumferential direction about the insertion portion 211 is restricted by the restriction portion 30 of the terminal block component 3.

<Terminal block parts 3>
Next, the terminal block component 3 used for the terminal block apparatus 1 is demonstrated. FIG.10 and FIG.11 is a schematic perspective view which shows an example of the external appearance of the terminal block component 3 used for the terminal block apparatus 1 described in this application. FIG. 10 shows the external appearance of the terminal block part 3 described in the present application from the perspective obliquely from above and FIG. 11 shows the external appearance of the terminal block 2 described in this application from the perspective obliquely from the rear and downward.

The terminal block part 3 described in the present application is formed so as to cover the upper surface of the terminal block 2 and is fitted into the fitting groove 200 of the terminal block 2 from the front end and the rear end of the upper surface downward. 31 is formed. Then, the terminal block part 3 is fitted from above the terminal block 2, and the fitting pieces 31 before and after the terminal block part 3 are fitted into the fitting grooves 200 of the terminal block 2, so that the terminal block part 3 is connected to the terminal block 2. 2 and the terminal block device 1 is formed. Further, it extends downward from both the left end and the right end of the upper surface through both sides (front and rear) of each insertion port 201 of the terminal block 2, and the tip side is outside (left side or right side) with the extended portion as the root side. A restricting portion 30 projecting toward the projecting portion is provided. In the terminal block part 3 attached to the terminal block 2 having a plurality of insertion openings 201 on one side as exemplified in the present application, both sides of the insertion opening 201 (the front side and the rear side in FIGS. 10 and 11). And the columnar base part of the control part 30 is extended between the insertion ports 201. Therefore, as illustrated in FIGS. 10 and 11, when two insertion ports 201 are opened on one side surface, the three restricting portions 30 are projected. And the lower end of each regulation part 30 on the base side is an insertion piece 300 to be inserted into the insertion port 204 formed at the lower end of the terminal block 2, and the insertion piece 300 is inserted into the insertion port 204. As a result, each regulating portion 30 is fixed.

On the upper surface of the terminal block component 3, an operation hole 32 for operating the protrusion 210 is opened at a position corresponding to the protrusion 210 of the movable member 21. The terminal block component 3 used as a terminal block cover is formed in a shape in which the center of the upper surface including the operation hole 32 is raised, and the protrusion protruding from the terminal block 2 by attaching the terminal block component 3 to the terminal block 2. Part 210 is covered. That is, the terminal block component 3 attached to the terminal block 2 has an operation hole 32 for operating the protruding portion 210 and includes the protruding portion 210. The inclusion of the projecting portion 210 by the terminal block component 3 indicates that the projecting portion 210 covers the projecting portion 210 so that there is no portion projecting outward from the terminal block component 3, and it is necessary to seal the projecting portion 210 so as to enclose it. There is no. Thereby, the collision of an external part with respect to the protrusion part 210 of the movable member 21, an erroneous operation, etc. can be prevented. Here, an embodiment in which the operation hole 32 is opened for each protrusion 210 is shown, but the terminal block component 3 is not limited to this as long as the terminal block component 3 includes the protrusion 210. For example, a configuration in which the terminal block part 3 having a large operation hole 32 so that an operation from one operation hole 32 to the plurality of protrusions 210 can be included in the protrusion 210 is also possible. When the user operates the terminal block 2 to which the terminal block component 3 is attached, for example, by using a jig such as a screwdriver with a sharp tip, by inserting the tip of the jig from the operation hole 32, Operations such as pressing of the protrusion 210 can be performed.

Further, on the upper surface of the terminal block component 3, a viewing window 33 having a size that allows the display unit 210a to be viewed from the outside is provided at a position corresponding to the display unit 210a of the movable member 21. The viewing window 33 is formed in a rectangular shape on the slope from the raised portion at the center of the upper surface of the terminal block part 3 to the lower portion of the edge, and the long side direction is the vertical direction along the slope (from the end to the center). Direction). The viewing window 33 opened in such a rectangular shape can visually recognize the exposed state of the display unit 210a moving up and down from above and from the side, and the user can visually recognize the display unit 210a from the viewing window 33. Thus, it is possible to grasp the exposure status of the display unit 210a. Therefore, the user grasps the exposure state of the display unit 210 a of the movable member 21 and recognizes the position of the movable member 21, that is, the locked state (locked state) of the terminal 4 due to the locking of the insertion portion 211. Is possible.

As described above, the left and right side surfaces of the terminal block part 3 extend in a columnar shape downward from the upper surface of the terminal block part 3, and further project outward from the columnar base side, and are attached to the terminals 4. The restricting portions 30 for restricting the swinging of the 40 are protruded. First, the restriction part 30 protruding from the left side will be described. The restricting portion 30 is formed on both sides of the insertion port 201 into which the terminal 4 can be inserted, and on the front side portion and the rear side portion in the drawing. Further, in the terminal block part 3 attached to the terminal block 2 having a plurality of insertion openings 201 on one side as exemplified in the present application, both sides of the insertion opening 201 (the front side in FIGS. 10 and 11). And the rear side) and between the insertion ports 201 are formed so that the restricting portions 30 respectively protrude. Therefore, as illustrated in FIGS. 10 and 11, when two insertion ports 201 are opened on one surface, three restricting portions 30 are formed.

The regulating part 30 has a plate shape and is formed in a shape that tapers from the root side fixed to the terminal block 2 toward the tip side in front view. That is, the restricting portion 30 has an isosceles trapezoidal shape with the bottom near the upper end and the bottom near the base fixed to the terminal block 2 from the front or rear viewpoint, and the upper base shorter than the lower base is It has a protruding shape.

The regulation part 30 is formed with a bent piece 301 that bends from the position of about 1/3 from the base side to the wire 40 side. The bent piece 301 is bent toward the wire 40 side where swinging should be restricted. Accordingly, the bent piece 301 of the restriction portion 30 on the front side portion and the rear side portion is bent toward the inside where the insertion port 201 is located, and the restriction portion formed between the insertion ports 201. 30, bent pieces 301 that are bifurcated and bent toward the insertion openings 201 on both sides are bent toward the wire 40 to be regulated. For this reason, the restriction | limiting part 30 formed between the insertion ports 201 has comprised substantially Y shape by planar view. That is, the bent piece 301 of the restriction portion 30 protruding from between the insertion portions 211 that lock the terminal 4 inserted into the insertion port 201 is engaged with the insertion portions 211 located on both sides of the root of the restriction portion 30. It branches and bends toward each wire 40 attached to the terminal 4 stopped. In this way, the bent piece 301 bent toward the wire 40 side contacts the terminal 4 inserted into the insertion port 201 and presses the wire 40 from both sides, thereby restricting the swinging of the wire 40, thereby controlling the wire. 40 is held.

Arc-shaped cutouts 302 are formed in two upper and lower portions on the side of the end of the bent piece 301 extending from the restricting portion 30 (the upper base of the isosceles trapezoid). The tip of the bent piece 301 abuts on the terminal 4 inserted in the terminal block 2 and has a function of holding the wire 40. However, an arc-shaped notch 302 is formed, and the wire 40 is formed by the notch 302. The contact portion between the bent piece 301 and the wire rod 40 can be increased by making the wire rod 40 contact with each other, and the wire rod 40 can be easily held. In the terminal block 2 exemplified in the present application, since the terminals 4 can be respectively inserted into the terminal receiving portions 220 formed in the upper and lower two stages in the insertion slot 201, the notches 302 are formed in two upper and lower portions.

In the vicinity of the base of the restricting portion 30, a U-shaped groove extending in the vertical direction parallel to the base side is engraved as the separating portion 303. By applying a force to twist the separating portion 303 around the shaft to the distal end side of the restricting portion 30, the restricting portion 30 can be easily folded from the separating portion 303, so that the leading end side of the restricting portion 30 is separated from the root side. Can do. That is, the bent piece 301 positioned on the leading end side of the protruding restricting portion 30 is formed so as to be separable from the root of the restricting portion 30. The separation part 303 is intended to make it possible to separate the bent piece 301 that is the tip of the restricting part 30 on the protruding side. Therefore, the separation part 303 is not limited to the U-shaped groove as long as the bent piece 301 can be separated. . For example, it can be developed in various forms such as broken line-shaped grooves, engraved grooves on dotted lines, and the use of fragile materials. Furthermore, the shape that can engage the tip side and the root side respectively. It is also possible to configure such that it can be removed and attached. Further, since the linear notch 304 is provided from the leading end of the restricting portion 30, that is, the leading end of the bent piece 301 to the separation portion 303 or the vicinity thereof, the restricting portion 30 may be separated from the separation portion 303 separately in the vertical direction. Is possible. Here, a form in which the separation part 303 is formed only in the lower part of the regulation part 30 is shown, but the separation part 303 can also be formed in the upper part. That is, the restricting portion 30 is formed so as to be separable for each tip portion at a position corresponding to the wire rod 40 attached to one terminal 4 among the plurality of terminals 4 connected with the swing axis as one. ing.

Next, the restriction part 30 protruding from the right side will be described. The restricting portion 30 on the right side surface shows a state where the lower bent piece 301 is separated. By separating the bent piece 301, as illustrated in FIGS. 1 to 5, a cross bar for connecting the terminal receiving portions 220 arranged side by side as illustrated in FIG. 7 can be used. In addition, the connection of the terminal receiving parts 220 arranged in the left and right is not limited to the crossing bar, but a member provided with the terminals 4 at both ends of the wire 40 can be used, but by separating the bent pieces 301 from each other. The wire rod 40 connecting the terminals 4 at both ends can be shortened, so that the whole can be miniaturized.

As described above, the terminal block device 1 described in the present application is formed of the wire rod 40 around the insertion portion 211 that locks the terminal 4 by being inserted into the terminal 4 by the restriction portion 30 formed in the terminal block component 3. There is an excellent effect that the swinging can be regulated by the regulating part 30 protruding from the terminal block part 3. Then, by regulating the swinging of the wire 40, an effect such as improved connection quality can be expected. The influence on the swinging of the wire 40 will be further described in detail. The rocking of the wire 40 leads to the rocking of the terminal 4. When the terminal 4 is swung, there is a possibility that an abnormality such as fine sliding wear may be caused at the contact portion between the terminal 4 and the connection member 22 of the terminal block 2. If fine sliding wear occurs due to repeated swinging of the terminal 4 at the contact portion between the terminal 4 and the connecting member 22, wear powder may be generated on the plating surface of the contact portion to oxidize. is there. Oxidation of the contact portion of the terminal 4 and the connection member 22, that is, the contact point, causes an increase in contact resistance, which may eventually lead to a contact failure. In the terminal block device 1 described in the present application, it is possible to suppress the occurrence of such a contact failure and improve the connection quality by restricting the swing of the wire 40. In addition, since the restriction portion 30 can separate the tip end side, there is an effect that a special terminal 4 such as the terminal 4 attached to the crossing bar can be connected.

Further, the terminal block device 1 described in the present application has the visual aid auxiliary groove 203 formed in the terminal block part 3, so that even when the terminal block part 3 is attached to the terminal block 2, There are excellent effects such as being able to visually recognize the exposure state and recognize the position of the movable member 21. Further, since the operation hole 32 is provided in the terminal block component 3 of the terminal block device 1, even when the terminal block component 3 is attached to the terminal block 2, an operation such as pressing the movable member 21 can be performed. It has excellent effects such as being possible.

The present invention is not limited to each of the embodiments described above, and can be implemented in various other forms. Therefore, the above-described embodiment is merely an example in all respects and should not be interpreted in a limited manner. The technical scope of the present invention is described by the scope of claims, and is not restricted by the text of the specification. Further, all modifications and changes belonging to the equivalent scope of the claims are within the scope of the present invention.

12 and 13 are schematic perspective views showing an example of the appearance of the terminal block component 3 used in the terminal block device 1 described in the present application. FIG. 12 shows the external appearance of the terminal block part 3 described in the present application from the perspective obliquely from above and FIG. 13 shows the external appearance of the terminal block 2 described in this application from the perspective obliquely from the rear and downward. The terminal block 2 illustrated in FIGS. 12 and 13 illustrates another form of the terminal block component 3 used in the terminal block device 1 according to the present invention. The terminal block component 3 illustrated in FIG. 12 and FIG. 13 is a terminal in which the terminal receiving part 220 corresponding to one insertion slot 201 is not in two stages, but one terminal receiving part 220 is formed in one insertion slot 201. The form corresponding to the stand 2 is shown. In the terminal block part 3 of this form, the wire 40 to be regulated is only one level in the vertical direction, so one arc-shaped cutout 302 is provided at the tip side of the bent piece 301 extending from the regulation part 30. Is formed. In addition, a separating portion 303 is formed in the restricting portion 30, and the bent piece 301 positioned on the leading end side of the protruding restricting portion 30 is formed so as to be separable from the base of the restricting portion 30. 12 and 13 illustrate a state where the right bent piece 301 is separated.

As described above, the terminal block 2 according to the present invention may be formed not only in the form in which the terminal receiving part 220 is formed in two upper and lower stages but also in one stage as illustrated in FIGS. Can be developed in various forms such as three or more stages.

In the above embodiment, an example in which two insertion openings 201 are provided on the left and right side surfaces of the housing 20 of the terminal block 2 is illustrated, but the present invention is not limited to this. For example, the insertion opening 201 opened on one side surface may be one place, or may be three places or more. When there is only one insertion opening 201 opened on one side surface, the substantially Y-shaped regulating portion 30 that branches into two branches is not necessarily required. In addition, when there are three or more insertion openings 201 opened on one side surface, it is desirable that the restricting portion 30 having a substantially Y shape that branches into two branches protrudes between the insertion openings 201.

Further, the terminal block 2 used in the terminal block device 1 according to the present invention may be the terminal block 2 that is inserted through the insertion hole 211 into the locking hole 41 of the terminal 4 and is locked. Not limited to this, it can also be used for the existing terminal block 2. In that case, the insertion part 211 does not necessarily need to be formed as the movable member 21 and can be developed in various forms such as a form in which the terminal 4 is inserted into the fixed insertion part 211. is there.

DESCRIPTION OF SYMBOLS 1 Terminal block apparatus 2 Terminal block 20 Housing | casing 201 Insertion slot 202 Insertion hole 203 Visual auxiliary | assistant groove | channel 21 Movable member 210 Protrusion part 210a Display part 211 Insertion part 22 Connection member 220 Terminal receiving part 221 Through-hole 3 Terminal block part 30 Control part 301 Bending piece 302 Notch 303 Separating part 304 Notch 32 Operation hole 33 Viewing window 4 Terminal 40 Wire 41 Locking hole

Claims

A terminal block device comprising a terminal block capable of connecting a terminal to which a wire is attached and a terminal block component attachable to the terminal block,
The terminal block is
It has an insertion part that locks the terminal by inserting it into the terminal,
The terminal block parts are:
It protrudes in the direction of the wire attached to the terminal locked by the insertion part, and the wire attached to the locked terminal is restricted from swinging in the circumferential direction around the insertion part. A terminal block device comprising a restricting portion.
The terminal block device according to claim 1,
The restriction part included in the terminal block component is:
A terminal block device comprising a bent piece bent toward a wire side to be controlled in swinging.
The terminal block device according to claim 2,
The terminal block is
A plurality of the insertion portions are arranged side by side,
The regulation part is
Protruding from between the insertion parts arranged side by side,
The bent piece of the restricting portion is bent and bent toward each wire rod attached to a terminal locked to the insertion portion located on both sides of the base of the restricting portion. Terminal block device to be used.
The terminal block device according to any one of claims 1 to 3,
The terminal block device is characterized in that the protruding end of the restricting portion included in the terminal block component is separable from the base side.
The terminal block device according to claim 4,
The terminal block is
Multiple terminals can be connected with the same axis of oscillation.
The restricting portion is formed so as to be separable for each tip portion at a position corresponding to a wire attached to one terminal among a plurality of terminals connected with a single swing axis. Terminal block device.
The terminal block device according to any one of claims 1 to 5,
The terminal block is
Provided with a display that displays the terminal locking status
The terminal block parts are:
The terminal block device, wherein the display unit is formed so as to be visible from the outside.
The terminal block device according to any one of claims 1 to 6,
The terminal block is
Protruding portion that accepts an external operation on the insertion portion,
The terminal block parts are:
An operation hole for operating the protrusion is formed, and the terminal block device is formed so as to include the protrusion.
It is a terminal block component that can be attached to a terminal block having an insertion portion that locks the terminal by inserting the terminal into which the wire is attached,
It protrudes in the direction of the wire attached to the terminal locked at the insertion part of the terminal block, and the wire attached to the locked terminal swings in the circumferential direction around the insertion part. A terminal block component comprising a regulating portion for regulating.