JPH066646Y2 - Fixing device for circuit breaker in distribution board - Google Patents

Description

[Detailed Description of the Invention] (a) Industrial field of application The present invention is a power distribution device that is easy to process and assemble, and secures a distance between the mounting base of the circuit breaker for wiring and the charging part to improve safety. The present invention relates to a fixing device for a circuit breaker on a board.

(B) Conventional technology Conventionally, in a fixing device for a circuit breaker in a distribution board, when a charging part is mounted on a charging part mounting base provided on a side of the circuit breaker mounting base, as shown in FIG. The screw 7 that inserts the charging part 4 firmly fixed to the charging part mounting base 3 into one side of the circuit breaker 6 for wiring and stops the other side
Then, it was fastened and fixed to the circuit breaker mount 2. When the charging section 4 is not attached to the charging section mount 3, two screws are set in the set screw insertion holes (not shown) formed at both ends of the wiring breaker 6 as shown in FIG. Screw 7,
The circuit breaker 6 for wiring was fixed to the circuit breaker mounting base 2 by inserting 7 through it.

(C) Problems to be solved by the invention In the conventional device for fixing the circuit breaker in the distribution board, the one in which the charging part is inserted into one side of the circuit breaker for wiring and the other side is fixed with the set screw is the set screw. You only need one,
It is not possible to secure a sufficient distance between the charging part and the circuit breaker mount,
There was a safety issue. Also, when the charging unit is not attached to the charging unit mount, one set screw on one side causes the circuit breaker for wiring to wobble and is unstable. Therefore, as shown in FIG. Both ends of the circuit breaker must be fastened, increasing the processing man-hour and processing cost, and
In order to screw the end side of the wiring breaker closer to the charging section mounting base, it is necessary to extend the circuit breaker mounting base to the end side of the wiring circuit breaker. There was a drawback that the space could not be secured sufficiently.

D. Means for Solving the Problems In view of the problems of the above-mentioned conventional techniques, the present invention is easy to process, can be manufactured at low cost, and can be attached with one touch.
In addition, regardless of whether the charging part is attached or detached, it provides a highly safe device for fixing the circuit breaker that secures a sufficient space between the charging part and the circuit breaker mounting base. -Shaped side plate part is provided with an insertion hole, the ends of the side plate parts are bent at right angles to each other, and the bent part is attached to the bottom board mounting side of the distribution board and the upper plate to the circuit breaker mounting base with the breaker mounting side, A fixing member on the protruding side for fixing any one terminal side of the circuit breaker for wiring, which has a locking groove in the central portion on both terminal sides, so as to protrude toward the charging unit mounting base, the base body, and Elastic projections that are externally fitted to both ends of the side plate portion, two twin insertion protrusions that are press-fitted into the insertion holes of the side plate portion, and a locking piece that further locks in the locking groove of the circuit breaker for wiring are integrally formed. It has been formed.

Further, at least one of the upper plate of the circuit breaker mounting base and the bent portion is connected to each other, and an elastic projection insertion groove is provided between adjacent side plate portions. The elastic protrusions are integrally formed so that they can be fitted into the elastic protrusion fitting grooves.

(E) To the top plate of the circuit breaker mounting base that is fastened to the bottom panel of the distribution board, extend the wiring breaker longer than that toward the charging part mounting base, and with one touch, the side plate of the circuit breaker mounting base. The elastic projections of the fixing member are fitted on both ends, and the double insertion projections of the fixing member are press-fitted into the insertion holes of the side plate portions,
Next, when the locking piece of the fixing member is locked in the locking groove of the circuit breaker for wiring, one end of the circuit breaker for wiring is caused by the locking force of the locking piece and the elastic force of the elastic projection and the double insertion projection. Is fixed to the circuit breaker mount, so the other end can be easily fixed with a single set screw.

Further, in the above fixing device, the base of the fixing member is provided in the elastic projection fitting groove provided between the adjacent side plate portions of the circuit breaker mounting base connecting at least one of the upper plate and the bent portion. When the elastic protrusions that are connected to each other and are integrated with the adjacent elastic protrusions are fitted, one end of each of the plurality of circuit breakers can be fixed to the circuit breaker mounting base upper plate that is connected.

F. Embodiment An embodiment of the fixing device for the circuit breaker in the distribution board according to the present invention will be described with reference to the drawings.

In FIG. 1, reference numeral 1 is a bottom board of a switchboard, 2 is a metal circuit breaker mounting base fastened to the bottom board 1, and has a length shorter than a length of wiring circuit breakers 5 and 6 to be described later in a terminal direction. ing. Reference numeral 3 denotes a charging unit mounting base fixed to the bottom board 1, and 4 denotes a charging unit firmly fixed to the charging unit mounting base 3.

Numerals 5 and 6 are circuit breakers for wiring, both of which are provided with locking grooves 5a, 5a, 6a, 6a in the central portions on both terminal sides. In the circuit breaker 5 for wiring, one end of the charging unit 4 is inserted into one side protruding toward the charging unit mounting base 3 and the other side is fastened to the upper plate 2a of the circuit breaker mounting base 2 with a set screw 7. There is. Further, the circuit breaker 6 for wiring is fixed to the upper plate 2a of the circuit breaker mounting base 2 by a fixing member 8 made of a synthetic resin, with one end protruding toward the charging unit mounting base 3.
The other end is fastened to the upper plate 2a by a set screw 7.

As shown in the second and third illustrations, the breaker mounting base 6 has side plate portions 2b, 2b each having a U-shaped cross section with through holes 2c formed therein, and the tip ends of the side plate portions 2b are bent at right angles to each other to form a bent portion 2d. Forming the bent portion 2 as described above.
d is attached to the bottom board 1 of the distribution board, and the circuit breaker 6 for wiring is attached to the upper board 2. Screw holes 2e are formed at both ends of the central portion of the upper plate 2.

Further, the fixing member 8 has elastic protrusions 8 on both front end portions of the base 8a.
b, 8b, two double insertion protrusions 8c at the center of the front surface, and a locking piece 8d having an L-shaped cross section at the rear upper end of the base 8a.

The wiring breaker fixing device configured as described above operates as follows. That is, the wiring breaker 6 having a length longer than the breaker mounting base 2 upper plate 2a fastened to the bottom plate 1 of the distribution board is protruded toward the charging unit mounting base 3.
The elastic projections 8b of the fixing member 8 are externally fitted to both ends of the side plate portion 2b of the circuit breaker mounting base 2 with one touch, and the double insertion protrusions 8 of the fixing member 8 are inserted into the insertion holes 2c of the side plate portion 2b.
When c is press-fitted (see FIG. 8), the fixing member 8 causes the elastic projections 8b, 8b to have an inward resilience and a double insertion projection 8c.
Due to the outward repulsive force of the, it is firmly coupled to the side plate portion 2b of the circuit breaker mounting base 2. In that state, the circuit breaker 6 for wiring is slid between the upper plate 2a of the circuit breaker mounting base 2 and the locking piece 8d of the fixing member 8, and the locking piece of the fixing member 8 is locked in the locking groove 6a. When 8d is locked, one end of the circuit breaker for wiring is fixed to the upper plate 2a of the circuit breaker mounting base 2, so that the other end can be easily fixed to the upper plate 2a with one set screw.

In the above structure, the upper plates 2a of the plurality of circuit breaker mounts 2 and the bent portions 2d are connected to each other as shown in the second drawing, and the adjacent side plate portions 2b and 2b are connected.
An elastic projection fitting groove 9 is provided between the elastic projection 8 and the base 8a of the fixing member 8 as shown in FIG.
When b is integrated and fitted into the elastic projection fitting groove 9,
A distribution board is provided in which a plurality of pairs of wiring breakers 5 and 6 are provided, and the wiring breakers 5 and 6 can be fixed as described above.

At that time, the guide protrusion 10 of the wiring breaker is inserted between each row of the wiring breakers 5 and 6 provided in a plurality of rows to guide the wiring breaker and prevent the deviation thereof.

It should be noted that the set screw 7 shown in FIG. 1 is omitted and, instead of the set screw 7, a fixing member 8 is provided on both side plate portions 2 of the circuit breaker mount 2 as shown in FIG.
It is also possible to fix the circuit breaker 5 or 6 for wiring by attaching it to b, 2b. Since one end or both ends of both terminal sides of the circuit breaker for wiring is not screwed in this way, the circuit breaker mounting base can be formed to a length shorter than the length of the circuit breaker for wiring in the terminal direction. . Therefore, it is safe because a sufficient distance can be secured between the circuit breaker mount and the charging part.

As described above, according to the present invention, the use of the set screw is omitted, and the fixing member integrally formed with the elastic protrusion, the double insertion protrusion and the locking piece on the base body is used to cut off the wiring. Since the device is fixed to the circuit breaker mounting base, processing is easy,
It can be manufactured at low cost and can be installed with one touch, and the circuit breaker mounting base can be formed to a length shorter than the length of the circuit breaker for wiring in the terminal direction. However, there is a great practical value in that a sufficient distance can be secured between the charging part and the circuit breaker mounting base to enhance safety.

[Brief description of drawings]

1 is a schematic front view showing an embodiment of the present invention, FIG. 2 is an exploded perspective view of a circuit breaker mounting base and a fixing member, and FIGS. 3 (a) and 3 (b) are circuit breaker mounting bases, respectively. A schematic plan view and a schematic front view showing the relationship with the fixing member, FIG. 4 is a perspective view of the connecting fixing members, and FIG. 5 is an explanatory view showing a state in which the fixing members are attached to both ends of the circuit breaker mounting base. FIG. 7 and FIG. 7 are schematic front views of a conventional fixing device, and FIG. 8 is a perspective view showing a state in which a fixing member according to the present invention is attached to a circuit breaker mounting base. 1 ... bottom plate, 2 ... circuit breaker mount, 2a ... top plate,
2b ... Side plate part, 2c ... Insertion hole, 2d ... Bent part, 2e ... Screw hole, 3 ... Charging part mounting base, 4 ...
Charging part, 5, land ... Wiring circuit breaker, 5a, 6a ... Locking groove, 7 ... Set screw, 8 ... Fixing member, 8a ... Base,
8b: elastic protrusion, 8c: double insertion protrusion, 8d:
Locking piece, 9 ... elastic projection fitting groove, 10 ... guide projection of circuit breaker for wiring.

Claims (2)

[Scope of utility model registration request] 1. A through hole is formed in a side plate portion having a U-shaped cross section,
Bend the ends of the side plates at right angles to each other, and install a locking groove in the center of both terminals to the circuit breaker mounting base with the bent parts as the bottom plate mounting side of the distribution board and the upper plate as the circuit breaker mounting side. A terminal member of the circuit breaker for wiring, which is a fixing member on the protruding side for fixing the terminal breaker so as to protrude toward the charging unit mounting base, and a base body, and elastic projections fitted to both ends of the side plate portion. Wiring in a distribution board, characterized in that two twin insertion protrusions press-fitted into the insertion holes of the side plate portion and a locking piece that locks in the locking groove of the circuit breaker for wiring are integrally formed. Fixing device for circuit breaker. 2. At least one of the upper plate of the circuit breaker mounting base and the bent portion is continuously provided, and an elastic projection fitting groove is provided between adjacent side plate portions, and the base body of the fixing member is further connected. The fixing device for a circuit breaker in a distribution board according to claim 1, wherein the adjacent elastic projections are integrally formed so as to be fitted into the elastic projection fitting groove.