JP2011097798A - Connection conductor for electric power - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable a molded-case circuit breaker and an electromagnetic switch to be stored compactly inside a distribution board without causing the increase of an area for the distribution board and without providing complex wiring work, and to reduce wiring mistakes and the number of man-hours for wiring and assembling work. <P>SOLUTION: Connection conductors for electric power are for connecting connection terminals by means of conductor bars formed integrally surrounding electric power conductors including interphases of a plurality of electric power phases by an insulating member to connect the molded-case circuit breaker 1a with the connection terminals of electric apparatus such as the electromagnetic switches 2a, 2b. The connection conductor 40, which has a flat plate base 40a arranged between the fixed side surface portion of at least the molded-case circuit breaker 1a and the front surface portion of the electromagnetic switch 2a, is structured in such a way that the molded-case circuit breaker is arranged at the front overlapping position of the electromagnetic switch by connecting the conductor bars 46, 47 at both sides of the flat plate base 40a with the secondary-side connection terminal of the molded-case circuit breaker 1a and the primary-side connection terminal of the electromagnetic switch 2a respectively. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a power connection conductor that electrically connects, for example, a circuit breaker installed on a distribution board or the like and an electrical device such as an electromagnetic switch.

  Generally, the secondary side of a circuit breaker (MCCB) provided in the electrical line on the electrical load side connected under the main circuit breaker of, for example, three-phase 200V in the distribution board The primary side of an electromagnetic switch (Electromagnetic Contact) connected underneath is placed in a distribution board in a straight line, and both terminals are connected using an electric wire to connect them. It is known to supply electricity to equipment.

  Further, in the main circuit breaker, a power supply branch wiring for distributing power to a plurality of load-side electrical lines is provided with a bus bar, and the bus bar is formed by processing a conductor metal into a plate bar shape, for example, for a three-phase distribution line. Are connected to each other with a conductor bar processed with a conductive metal so that terminals are connected to the primary side of the load-side circuit breaker described above with a predetermined gap therebetween ( For example, see Patent Document 1).

  In addition, a conductor that is a power conductor for independently connecting three-phase components one by one with an I-shaped connecting copper bar to a plurality of branch circuit breakers in a distribution board and a bus bar Bars are also known (see, for example, Patent Document 2).

Japanese Patent Laid-Open No. 7-298426 (FIGS. 2, 3, and 4) JP 2009-11047 A (FIGS. 1, 2, and 3)

  However, as disclosed in Patent Documents 1 and 2, a bus bar is used for connection to the main circuit breaker and the branch circuit breaker for the branch under the main circuit breaker, but between the branch wiring breaker and the electromagnetic switch. Are connected by using electric wires because they are related to the arrangement installed in the distribution board. For this reason, when there are a plurality of electrical load sides or when the size of the distribution board is limited, wiring connection takes time and much labor is required for wiring. In addition, there is a concern that the wiring becomes complicated and leads to a wiring mistake.

  Also, if the size of the distribution board is large on the electrical load side, the necessary electrical equipment will inevitably increase, and the installation area of the electrical equipment will increase accordingly. It will lead to increase and cost increase.

  The present invention has been made in view of the above circumstances, and without branching a circuit breaker and an electromagnetic switch in a distribution board without causing complicated wiring work without increasing the area of the distribution board. It is an object of the present invention to provide a power connection conductor that can be housed in a compact manner and that also reduces wiring mistakes and wiring assembly man-hours.

  In order to solve the above-described problems, the power connection conductor of the present invention includes a power conductor including a plurality of power phases in order to connect a circuit breaker for wiring and a connection terminal of an electric device such as an electromagnetic switch. A power connection conductor for connecting between the connection terminals by a conductor bar integrally surrounded by an insulating member, wherein the connection conductor includes at least a fixed side surface portion of the circuit breaker for wiring and the electromagnetic switch And a conductor bar on both ends of the flat plate portion is connected to the secondary side connection terminal of the circuit breaker and the primary side connection of the electromagnetic switch, respectively. The terminal is connected (Claim 1).

  By configuring in this way, the conductor bar is formed by placing the branch circuit breaker above the electromagnetic switch at the position where it is stacked and surrounding the power conducting wire connecting between them with an insulating member. Since it can connect, the connection of the power conducting wire between the circuit breaker for wiring and the electromagnetic switch can be easily connected without wiring mistake.

  In the present invention, the connection conductor is disposed on a fixed side surface portion of the circuit breaker for wiring, and a first connection conductor having a fitting recess for connection at both ends of a flat conductor bar, A U-shaped conductor bar is formed between the secondary side connection terminal of the circuit breaker for wiring and the one fitting recess of the first connection conductor, and at least one of the conductor bars is formed of the first connection conductor. A second connecting conductor having a shape of a fitting convex portion to be inserted into the fitting concave portion, and a second connecting conductor between the other fitting concave portion of the first connecting conductor and a primary side connecting terminal of the electromagnetic switch. And a third connecting conductor having a shape of a fitting convex portion that is inserted into the fitting concave portion of the first connecting conductor, and is divided into the first connecting conductor and the third connecting conductor. Conductor bars of the second and third connection conductors are respectively connected to the secondary side connection terminal of the wiring breaker and the electromagnetic It may be connected to the primary side connection terminal of 閉器 (claim 2).

  By configuring in this way, it is possible to perform wiring by forming connection conductors in which the shape of the conductor bar is divided into a plurality of shapes so as to match the wiring and fitting and connecting them.

  In addition, the power connection conductor of the present invention is disposed on a fixed side surface of the second electromagnetic switch so as to connect another second electromagnetic switch to the secondary side of the electromagnetic switch. A fourth connecting conductor having connecting recesses at both ends of the conductor bar formed in a shape; a secondary connecting terminal of the electromagnetic switch; and one engaging recess of the fourth connecting conductor; A fifth connection conductor having a shape of a fitting convex portion, at least one of which is inserted into the fitting concave portion of the fourth connection conductor, 4 is formed of a U-shaped conductor bar between the other fitting recess of the connection conductor and the primary connection terminal of the second electromagnetic switch, and at least one of the conductor bars is the fourth connection conductor. And a sixth connecting conductor having a shape of a fitting convex portion to be inserted into the fitting concave portion. Sixth conductor bar connecting conductor of connecting the respective primary side connection terminal of the secondary side connection terminal and the second electromagnetic switch of the electromagnetic switch, characterized in that (claim 4).

  By configuring in this way, for example, even when there is a requirement for safety specifications in which another electromagnetic switch is added in series, the whole can be laminated by using the conductor bars in combination.

  In the present invention, the first connection conductor and the fourth connection conductor are preferably connection conductors having the same shape, and the third connection conductor and the sixth connection conductor are the same. It is preferable that the connecting conductor has a shape (claims 5 and 6).

  By configuring in this way, it is not necessary to increase the types of shapes of the conductor bars to be divided, a common conductor bar can be used, and mistakes in fitting connection can be prevented.

  In the present invention, the conductor bar provided on the second, third, fifth, and sixth connection conductors and connected to the terminal of the circuit breaker or the electromagnetic switch is preferably a plug-in terminal. Preferred (claims 3 and 7).

  By comprising in this way, even if it is not terminal-connected using a screw member, a connection can be achieved by inserting.

  In the present invention, the second, third, fifth, and sixth connecting conductors are screw holes for connecting to the circuit breaker for wiring or a fixing bracket for fixing the electromagnetic switch position. Are preferably provided (claim 8).

  By comprising in this way, it can fix to a distribution board in the state which laminated | stacked and connected the circuit breaker for wiring and the electromagnetic switch.

  Further, in the present invention, it is preferable that the fitting recess has a pair of holding members that are press-contacted by urging of a spring force, and the fitting protrusion is inserted and engaged between the holding members. (Claim 9).

  By configuring in this way, the parts to be fitted and joined are firmly fitted and connected by the pressure contact of the spring.

  Further, the power connection conductor of the present invention is mutually contradictory from the flat base portion disposed between the fixed side surface portion of the circuit breaker for wiring and the front surface portion of the electromagnetic switch, and both ends of the base portion. A first horizontal portion and a second horizontal portion extending in a direction are integrally formed, and the conductor bars of the first horizontal portion and the second horizontal portion are respectively secondary connection terminals of the circuit breaker for wiring And the primary connection terminal of the electromagnetic switch are connected (claim 10).

  By configuring in this way, the power conductor can be surrounded by the insulating member and connected by the integrally formed conductor bar, so that the power conductor can be easily connected between the circuit breaker for wiring and the electromagnetic switch. Can be connected without wiring mistakes.

  The power connection conductor of the present invention is further provided for connecting another second electromagnetic switch to a secondary side of the electromagnetic switch, and the fixed side surface portion of the electromagnetic switch and the second electromagnetic switch. A flat base portion disposed between the front surface portion of the electromagnetic switch and a first horizontal portion and a second horizontal portion extending in opposite directions from both ends of the base portion are integrally formed, The conductor bars of the first horizontal part and the second horizontal part respectively connect the secondary connection terminal of the electromagnetic switch and the primary connection terminal of the second electromagnetic switch. (Claim 11).

  By configuring in this way, for example, even in the case of a requirement for safety specifications such as adding another electromagnetic switch in series, the whole can be laminated by using an integrally formed conductor bar. Can be arranged compactly.

  In the invention according to claim 10 or 11, the conductor bar connected to the terminal of the circuit breaker for wiring or the electromagnetic switch is preferably a plug-in terminal (invention 12).

  By comprising in this way, even if it is not terminal-connected using a screw member, a connection can be achieved by inserting.

  In the invention according to any one of claims 10 to 12, the connection conductor includes a latch receiving convex portion on an outer surface of one horizontal portion, and a surface portion facing a surface having the connection terminal of the electromagnetic switch, It is preferable to project an elastically deformable fixing piece having a slit-shaped locking hole and to connect the electromagnetic switch by engaging the locking receiving projection and the slit-shaped locking hole. (Claim 13).

  By comprising in this way, since the connection conductor for electric power and an apparatus can be firmly connected, it can laminate | stack in the vertical direction.

  As described above, the power connection conductor of the present invention is configured as described above, and the following effects can be obtained when wiring the circuit breaker for wiring and the electromagnetic switch.

  When the circuit breaker for wiring and the electromagnetic switch are arranged in the distribution board so as to be laminated, the secondary terminal part of the circuit breaker or electromagnetic switch enclosed by the insulating member and the electromagnetic switch By using a connection conductor formed in a predetermined shape that can be connected to the primary side terminal part, the wiring breaker for branching can be performed without causing complicated wiring work without increasing the area of the distribution board And the electromagnetic switch can be stored compactly in the distribution board, and wiring mistakes and wiring assembly man-hours can be reduced.

  In addition, by adopting a structure in which the connection conductor can be divided into a plurality of parts, the connection can be configured in an optimum combination depending on the size of the device. In addition, since a plurality of connection conductors are used in common, there are few replacement parts when a problem occurs, and the detachable fitting method improves work efficiency during maintenance such as failure.

It is a wiring diagram which shows the electric circuit of the connection conductor for electric power which concerns on this invention. It is a schematic perspective view which shows the actual wiring of the conventional electric circuit. It is a disassembled perspective view which shows the structure of the connection conductor which connects between the electric equipment which concerns on this invention. It is the front view (a) which shows the 1st connection conductor in this invention, and the perspective view (b) which shows the 2nd connection conductor. It is a perspective view which shows the structure of the fitting recessed part used for the connection conductor which concerns on this invention. It is a perspective view at the time of connecting an electric equipment using the said connection conductor. It is a wiring diagram which shows the circuit which further connects an electromagnetic switch to the said electric circuit. It is a disassembled perspective view which shows the structure of the connection conductor which connects between the electric equipment which concerns on this invention. They are the perspective view (a) which shows the state which fixed the electric equipment to which the said connection conductor was applied with the fixed bracket, and sectional drawing (b) of a fixed bracket. The perspective view (a) which shows another embodiment of this invention, the perspective view (b) which shows the state which connected the apparatus using this invention, and the latching | locking part which connects the connection conductor and electromagnetic switch of this invention. It is a perspective view (c) shown. It is a perspective view which shows the state before arranging an electric equipment ahead of the electromagnetic switch in this invention. It is a perspective view which shows the state before connecting the said two structures.

  Embodiments of the present invention will be described below with reference to the drawings. FIGS. 1 and 2 are wiring diagrams showing a part of a branch circuit breaker 1 and an electromagnetic switch 2a branched to a three-phase load side that is wired and fixed in a distribution board (not shown). The three-phase R, S, T fed to the primary terminal 4 of the circuit breaker 1 (MCCB) and the secondary terminal 5 to the primary terminal 6 of the electromagnetic switch 2a (MC1) Connected to the connected three-phase wires R (red), S (white), and T (black) that are visually color-coded, and to the secondary side connection terminal portion 7 of the electromagnetic switch 2a. It is formed so that power is supplied to the load side.

  As shown in FIG. 3, as a positional relationship to be fixedly arranged in the switchboard, the circuit breaker 1 (MCCB) and the electromagnetic switch 2a (MC1) are placed below the electromagnetic switch 2a and the circuit breaker 1 is placed above. To be provided. In this arrangement, the secondary side of the circuit breaker 1 for wiring and the primary side of the electromagnetic switch 2a are connected. In addition, the wiring part 3 of the range enclosed with a dotted line in FIG. 3 corresponds to the connection line equivalent to the site | part (wiring part 3) shown enclosed with a dotted line in FIG.1 and FIG.2.

  The power connection conductor according to the first embodiment of the present invention includes a flat plate-like first connection conductor 15 disposed on the fixed side surface portion 8 of the wiring breaker 1 and a secondary side connection of the wiring breaker 1. A U-shaped second connection conductor 13 disposed between the terminal 5 and the first connection conductor 15, and the first connection conductor 15 and the primary side connection terminal 6 of the first electromagnetic switch 2a. And a U-shaped third connection conductor 14 disposed therebetween. Then, by connecting the first, second and third connecting conductors 15, 13, 14 together, the circuit breaker 1 for wiring is arranged at an overlapping position in front of the first electromagnetic switch 2 a. Composed.

  First, the first connection conductor 15 provided between the circuit breaker 1 for wiring and the first electromagnetic switch 2a shown in FIG. 3 and configured to be fixed to the fixed side surface 8 of the circuit breaker 1 for wiring is provided. explain. As shown in FIG. 4A, the first connecting conductor 15 has, for example, three rod plate-like metals that are power conductors for feeding if there are three phases corresponding to the number of phases of power to be fed. The conductor bar 22 (shown by a dotted line in FIG. 4A) is surrounded by an insulating member 23 with the same length, width and thickness, and is formed in a rectangular plate shape as a whole. For example, the length of the conductor bar 22 is adjusted according to the electrical equipment, but the width is 7 mm and the thickness is 3.5 mm. Each conductor bar 22 is surrounded by an insulating member 23 made of a synthetic resin and integrally formed. In this state, for example, it is a plate shape that is the same as or larger than the fixed side surface portion 8 having a width of 90 mm and a thickness of 10 mm.

  The metal of the conductor bar 22 should just be a conductor suitable for electric power feeding, such as copper, a copper alloy, and aluminum, for example. The insulating member 23 may be a nonconductive resin such as an epoxy resin or a silicon resin. At both ends of the bar-shaped metal conductor bar 22, there are fitting recesses 16 and 16 a, respectively. In the fitting recesses 16 and 16 a, for example, a conductor metal which is a fitting protrusion described later is surrounded by an insulating resin. The exposed portion of the conductor bar 11a with the unexposed portion exposed can be inserted and fitted and connected. In the plane of the first connection conductor 15, for example, fixing holes 17a and 17b for fixing to the circuit breaker 1 for wiring are provided.

  As shown in FIG. 5, the fitting recesses 16 and 16 a are formed of, for example, the same metal as the conductor bar 22, and include a pair of a lower clamping member 31 and an upper clamping member 32 that are pressed by spring force. is doing. In this case, the lower clamping member 31 located on the lower side is provided with an inclined surface portion 31a that is bent below the outer distal end portion, and a corrugated portion 31b that is bent and connected to the proximal end side of the inclined surface portion 31a. On the other hand, the upper clamping member 31 located on the upper side includes a substantially semi-cylindrical pressing portion 32a that is pressed against a flat portion 31c that is connected to the proximal end side of the corrugated portion 31b of the lower clamping member 31 at the outer distal end portion. A bent portion 32b bent in a substantially crank shape on the proximal end side of the presser portion 32a, and a holding portion bent from the proximal end side to the distal end side of the bent portion 32b and in contact with the lower surface side of the flat portion 31c of the lower clamping member 31 32c is provided.

  Next, the second connection conductor 13 and the third connection conductor 14 that are fitted and connected to the first connection conductor 15 and the fitting recesses 16 and 16a will be described with reference to FIG. Both the second connection conductor 13 and the third connection conductor 14 are formed in a U-shape, except for the structure of the first connection conductor 15, the fitting recesses 16 and 16a at both ends, and the shape thereof. The formation structure is the same.

  As shown in FIG. 4B, the second connecting conductor 13 is formed by processing a metal conductor bar 20 of the same length in accordance with the number of electrical phases into a U shape and surrounding it with an insulating member 21. The U-shaped both ends of the fitting convex portion are not surrounded by the insulating member 21, for example, projecting bar-shaped conductor bars 10 a and 11 a of about 20 mm, and one conductor bar 11 a is connected to the first connecting conductor 15. The other conductor bar 10a is engaged with the secondary terminal portion 5 of the circuit breaker 1 for wiring. In this case, the conductor bar 10a is provided with a fixing hole 10c so as to be able to cope with a case where a screw is fixed through the terminal portion of the circuit breaker 1 for wiring. Further, a fixing hole 12a for fixing to a fixing bracket 33a described later is provided in a substantially central portion of the U-shaped portion.

  Since the third connecting conductor 14 has the same configuration and length as the second connecting conductor 13, details thereof are omitted. The third connection conductor 14 has a fixing hole so that one of the conductor bars 10b and 11b can be used even when a screw is penetrated and fixed at the terminal portion of the circuit breaker 1 for wiring. 10c is provided. In addition, a fixing hole 12a is provided at a substantially central portion of the U-shaped portion.

  FIG. 6 is a perspective view of a state in which the connection breakers 1 and the electromagnetic switch 2a are connected by combining the connection conductors. By connecting the first to third connection conductors 13, 14, 15 in combination, the circuit breaker 1 for wiring can be arranged in a superimposed manner in the forward direction of the electromagnetic switch 2 a. As a result, the layout area on the distribution board may be only the mounting area of the electromagnetic switch 2a. In order to prevent falling off due to vibration or looseness of fitting connection when placed and fixed in the distribution board in this state, an L-shaped fixing bracket 33a is used as shown in FIG. The screw hole 34c and the fixing hole 10a of the fixing bracket 33a are screwed to the fixing hole 10a through the screw 36 from the fixing bracket side, and the fixing side surface portion 9 and the screw holes 34a and 34b of the electromagnetic switch 2a are screwed. In order to fix the fixing bracket 33a and the distribution board, the bracket mounting holes 35a and 35b are screwed with screws (not shown).

  Next, another embodiment to which the present invention is applied will be described. FIG. 7 is a circuit diagram in which a second electromagnetic switch MC2 is added in series to the wiring diagram of FIG. 1 to meet the requirements of safety specifications. In this other embodiment, the dotted line in FIG. 7 is connected so as to connect the secondary terminal portion 7 of the first electromagnetic switch 2a and the primary terminal portion 6A of the second electromagnetic switch 2b (MC2). Wiring corresponding to the portion surrounded by 3a is performed, and the circuit breaker 1 for wiring, the first electromagnetic switch 2a, and the second electromagnetic switch 2b are connected continuously. Also at this time, as described above, in order to reduce the installation area in the switchboard, these are continuously laminated in the lateral direction with respect to the front of the device.

  The configuration of another embodiment will be described with reference to FIG. Here, the connection to the primary side terminal part 6 of the circuit breaker 1 for wiring and the 1st electromagnetic switch 2a, and the detail of the 1st connection conductor 15, the 2nd connection conductor 13, and the 3rd connection conductor 14 are shown. This description will be omitted.

  The structure of the fourth connection conductor 25 arranged between the first electromagnetic switch 2a and the second electromagnetic switch 2b is the same as that of the first connection conductor 15, and is fitted at both ends in the longitudinal direction. Fitting recesses 29a and 29b configured to be connectable are provided. The fourth connection conductor 25 is provided with fixing holes 18a and 18b so as to be fixed to the bottom of the first electromagnetic switch 2a with screws. The fifth connection conductor 24 and the sixth connection conductor 26 have the same U-shape as the second connection conductor 13 described with reference to FIG. The length of the conductor bar 27a (27b) in the exposed portion which is the convex portion is different from the length of the conductor bar 28a (28b) in the other exposed portion, and the others are the same. In addition, these are provided with fixing holes 12c and 12d that can be fixed to the fixing bracket 33b whose horizontal piece is longer than the above-described fixing bracket 33a regardless of whether it is used or not. The fixed bracket 33b is the same as the fixed bracket 33a except that the circuit breaker 1 for wiring, the first electromagnetic switch 2a, and the second electromagnetic switch 2b are connected. The description is omitted.

  Thus, it is used in the case of the structure which connects the circuit breaker 1 for wiring, the 1st electromagnetic switch 2a, and the 2nd electromagnetic switch 2b continuously in one direction. Further, the sixth connection conductor 26 and the third connection conductor 14 can be of the same shape. For this reason, it is not necessary to increase the configuration types of the shape of the connection conductor as the connection component. Thus, even if it connects continuously, wiring is not complicated and it can connect. Also, in the case where the connection terminal portion of the circuit breaker 1 for wiring, the first electromagnetic switch 2a, and the second electromagnetic switch 2b is a plug-in terminal that does not use a screw connection, the fitting convex portion Since some exposed portion conductor bars 10a, 10b, etc. can be inserted and handled, wiring errors can be prevented and connection time can be shortened.

  Next, when the power connection conductor of the present invention is used for wiring connection, the wiring breaker 1a and the first circuit breaker 1a are not used without using the L-shaped fixing brackets 33a and 33b described in FIGS. Connection conductors 40 and 41 having a feature that the electromagnetic switch 2a or the second electromagnetic switch 2b as necessary can be connected and fixed to the distribution board after engaging and coupling, the electromagnetic switch 2a, the electromagnetic switch Connection with the switch 2b will be described with reference to FIGS. 10 (a), (b), and (c).

  As shown in FIG. 10 (a), the secondary terminal portion of the circuit breaker 1a for wiring and the primary terminal portion of the electromagnetic switch 2a are connected by connecting them horizontally in one direction. In order to do so, the connection conductor 40 is sandwiched between the fixed side surface portion of the circuit breaker 1a for wiring and the front surface portion of the electromagnetic switch 2a. The connection conductor 40 has a structure other than the fact that there is a latch receiving portion 42 shown in FIG. 10C as indicated by arrow A, and that the connection conductor 40 is not a divided structure but is formed integrally. The detailed structure is the same as the structure described above. In this case, the integrated connection conductor 40 is orthogonal to the flat base 40a disposed between the fixed side surface of the circuit breaker 1a and the front surface of the electromagnetic circuit breaker 2a, and from both ends of the base 40a. The first horizontal portion 40b and the second horizontal portion 40c are bent in a shape and extend in directions opposite to each other. A conductor bar 46 protrudes in parallel with the base 40a at the tip of the first horizontal portion 40b of the integrated connection conductor 40, and a conductor bar 47 extends from the tip of the second horizontal portion 40c with the base 40a. Projecting in parallel. Note that a pair of substantially rectangular locking receiving projections 42 are provided on opposite side portions of the outer surface of the first horizontal portion 40b.

  Further, the electromagnetic switch 2a is general except that a fixing piece 43, both locking pieces 44, and a slit-like locking hole 45, which are members for locking connection shown in the arrow B, are provided. It is the same as the electromagnetic switch 2a. In this case, the fixed piece 43 is formed of a synthetic resin having elastic properties that can be elastically deformed, and is provided on a surface portion of the electromagnetic switch 2a that faces the surface having the plug-in terminal 6 so as to protrude from the two on the protruding side. The rectangular locking piece 44 is provided with a rectangular slit-shaped locking hole 45 that is detachably engaged with the locking receiving projection 42 (see FIG. 10).

  Next, wiring and locking connection will be described. First, in the connection conductor 40, the first horizontal portion 40b having the latch receiving convex portion 42 is on the lower side, and the second horizontal portion 40c not having the latch receiving convex portion 42 is on the upper side, and the connection conductor 40 is connected. The upper conductor bar 47 is inserted into the primary-side plug-in terminal portion 6 of the electromagnetic switch 2a and pressed (inserted). Next, the conductor bar 46 of the first horizontal portion 40b located on the lower side of the connection conductor 40 is similarly inserted into the secondary terminal portion (not shown) of the wiring breaker 1a and is pressed or fixed with screws.

  Next, it connects using the latching | locking part in the position of the arrow A and arrow B mentioned above. In this case, when connecting as shown in FIG. 10B, the slit-like locking holes 45 and the locking receiving projections 42 are engaged (fitted) and connected. FIGS. 10A and 10B also include a case where two first electromagnetic switches 2a and two second electromagnetic switches 2b are connected. In this case, the integrated connection conductor 41 formed in the same manner as the connection conductor 40 is connected to the electromagnetic switch 2b first, and then the connection is made in a connected state between the circuit breaker 1a and the electromagnetic switch 2a. The conductor bar 48 of the 1st horizontal part 40b located under the conductor 41 and the secondary side of the electromagnetic switch 2a are connected by a plug-in terminal. After this, the locking member provided in the same manner as described above in the direction of arrow C and arrow D, that is, the slit-shaped locking hole 45 of the fixed piece 43 and the locking receiving portion 42 are connected (fitted). The conductor bar 49 of the second horizontal portion 40c located above the connection conductor 41 is inserted and connected to the primary connection terminal portion 6A of the second electromagnetic switch 2b.

  By doing in this way, it becomes possible to connect even without using an L-shaped fixed bracket, and the time of the further connection man-hour can be shortened. Since it can be connected in the horizontal direction, the installation area in the distribution board can be reduced.

  Next, with reference to FIG. 11, another example in the case where the electromagnetic switch 1 and the electromagnetic switch MC1 are arranged in the horizontal direction will be described. First, the fixing side surface portion 8 of the circuit breaker 1 for wiring and the fixing base 50 are screw-fixed using the screw holes 60a. Next, the electromagnetic switch MC1 is fixed inside the four-corner columnar structure box 51, which is a structure having a bottom surface 54 that can be fixed to the fixed side surface portion 9 of the electromagnetic switch MC1 and at least four sides open, and is cut off for wiring. The fixing base 50 to which the device 1 is fixed is fixed by fixing means that can be freely engaged and disengaged in the direction of the front of the electromagnetic switch MC1 of the four-corner columnar structure box 51. As the fixing means, the locking structure described with reference to FIG. 10C may be used, and a generally detachable structure that is generally considered is sufficient. Further, a locking projection 52 is provided on the side surface of the opposite side outside the fixed base 50, and a locking recess 53 a is provided at the position of the corresponding four-cornered columnar structure box 51 to lock the locking projection 52. The recess 53a may be locked and fitted.

  In addition, as shown in FIG. 12, when the electromagnetic switch MC2 is additionally installed, two four-corner columnar structure boxes 51 provided with locking projections 55 on the side surfaces of the opposite sides outside the bottom surface 54 are prepared. Thus, the electromagnetic switch MC2 may be installed by engaging the locking convex portion 55 and the locking concave portion 53a. In addition, as for these, the connection between electrical apparatuses may be connected by the connection conductor of this invention, and of course, it may be wire-connected like the past.

1,1a Circuit breaker for wiring (MCCB)
2a, 2b Electromagnetic switch (MC1), (MC2)
3, 3a Wiring part 4 Primary side connection terminal part 5 of wiring circuit breaker Secondary side connection terminal part 6, 6A of wiring circuit breaker Primary side connection terminal part 7 of electromagnetic switch Secondary side of electromagnetic switch Connection terminal portion 8 Fixed side surface portion of circuit breaker 9 Fixed side surface portions 10a, 10b, 27a, 27b of electromagnetic switch Conductor bar 10c Fixed holes 11a, 11b, 28a, 28b Conductor bars 12a, 12b Screw holes 13 Second Connection conductor 14 Third connection conductor 15 First connection conductors 16, 16a, 29a, 29b Fitting recesses 20, 22 Conductor bars 21, 23 Insulating member 25 Fourth connection conductor 30 Plug-in terminal fittings 33a, 33b Fixing bracket 34c Screw hole 36 Screws 40, 41 Integrated connecting conductor 40a Flat base 40b First horizontal portion 40c Second horizontal portion 42 Locking receiving projection 45 Slit-like locking holes 46, 47 Conductor bar

Claims (13)

In order to connect a circuit breaker for wiring and a connection terminal of an electric device such as an electromagnetic switch, a power bar including a plurality of power phases is surrounded by an insulating member and integrally formed between the connection terminals. A connecting conductor for power for connecting,
The connection conductor has at least a flat plate portion disposed between a fixed side surface portion of the circuit breaker for wiring and a front surface portion of the electromagnetic switch, and conductor bars on both ends of the flat plate portion are respectively provided. Connecting the secondary side connection terminal of the circuit breaker for wiring and the primary side connection terminal of the electromagnetic switch;
A connecting conductor for electric power characterized by the above. The connection conductor is
A first connecting conductor disposed on a fixed side surface of the circuit breaker for wiring and having a fitting recess for connection at both ends of a flat conductor bar;
A U-shaped conductor bar is formed between the secondary side connection terminal of the circuit breaker for wiring and one fitting recess of the first connection conductor, and at least one of the conductor bars is the first connection conductor. A second connecting conductor having a shape of a fitting convex portion to be inserted into the fitting concave portion;
A U-shaped conductor bar is formed between the other fitting recess of the first connection conductor and the primary side connection terminal of the electromagnetic switch, and at least one conductor bar of the first connection conductor And a third connection conductor having a shape of a fitting convex portion to be inserted into the fitting concave portion,
The conductor bars of the second and third connection conductors respectively connect the secondary side connection terminal of the wiring breaker and the primary side connection terminal of the electromagnetic switch;
The power connection conductor according to claim 1.   The conductor bar provided on the second and third connection conductors and connected to a terminal of the circuit breaker for wiring or an electromagnetic switch is a plug-in terminal. Connecting conductor for power. The connection conductor is
In order to connect another second electromagnetic switch to the secondary side of the electromagnetic switch, it is arranged on a fixed side surface portion of the second electromagnetic switch and is attached to both end portions of a conductor bar formed in a flat plate shape. A fourth connection conductor having a fitting recess for connection;
A U-shaped conductor bar is formed between the secondary side connection terminal of the electromagnetic switch and one fitting recess of the fourth connection conductor, and at least one of the conductor bars is formed of the fourth connection conductor. A fifth connection conductor having a shape of a fitting convex portion to be inserted into the fitting concave portion;
A U-shaped conductor bar is provided between the other fitting recess of the fourth connection conductor and the primary connection terminal of the second electromagnetic switch, and at least one of the conductor bars is the fourth connection bar. A sixth connecting conductor having a shape of a fitting convex part inserted into the fitting concave part of the connecting conductor,
The conductor bars of the fifth and sixth connection conductors respectively connect the secondary connection terminal of the electromagnetic switch and the primary connection terminal of the second electromagnetic switch;
The power connection conductor according to claim 1, wherein the power connection conductor is a power connection conductor.   The power connection conductor according to claim 4, wherein the first connection conductor and the fourth connection conductor are connection conductors having the same shape.   The power connection conductor according to claim 4, wherein the third connection conductor and the sixth connection conductor are connection conductors having the same shape.   The conductor bar provided on the second, third, fifth and sixth connecting conductors and connected to a terminal of a circuit breaker for wiring or an electromagnetic switch is a plug-in terminal. The power connection conductor described in 1.   The second, third, fifth and sixth connecting conductors are provided with screw holes for connecting to the circuit breaker for wiring or a fixing bracket for fixing the position of the electromagnetic switch, respectively. The power connection conductor according to claim 4, wherein the power connection conductor is a power connection conductor.   6. The fitting recess according to any one of claims 1 to 5, wherein the fitting recess includes a pair of clamping members that are press-contacted by urging of a spring force, and the fitting projection is inserted and engaged between the clamping members. A power conductor according to any one of the above. The connection conductor is
A flat base portion disposed between a fixed side surface portion of the circuit breaker for wiring and a front surface portion of the electromagnetic switch; a first horizontal portion extending in opposite directions from both ends of the base portion; A second horizontal portion is formed integrally, and the conductor bars of the first horizontal portion and the second horizontal portion are respectively connected to the secondary side connection terminal of the wiring breaker and the primary side connection terminal of the electromagnetic switch. Connect,
The power connection conductor according to claim 1. The connection conductor is
It is further provided for connecting another second electromagnetic switch to the secondary side of the electromagnetic switch, and between the fixed side surface portion of the electromagnetic switch and the front surface portion of the second electromagnetic switch. A flat base portion to be disposed, and a first horizontal portion and a second horizontal portion extending in opposite directions from both ends of the base portion are integrally formed, and the first horizontal portion and the second horizontal portion are formed. 11. The electric power according to claim 1, wherein the conductor bar of each portion connects the secondary connection terminal of the electromagnetic switch and the primary connection terminal of the second electromagnetic switch, respectively. Connection conductor.   The power connection conductor according to claim 10 or 11, wherein the conductor bar connected to the terminal of the wiring breaker or the electromagnetic switch is a plug-in terminal.   The connection conductor is provided with a latch receiving projection on the outer surface of one horizontal portion, and is elastically deformable fixed with a slit-like latch hole formed in a surface portion facing the surface having the connection terminal of the electromagnetic switch. 13. The electric power according to claim 10, wherein a piece is protruded, and the electromagnetic switch is connected and connected by engaging the engagement receiving projection and the slit-shaped engagement hole. Connection conductor.

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