JP3125999U - switchboard - Google Patents

Abstract

[PROBLEMS] To solve the problem that wiring connection work of a breaker is difficult, so that it is possible for a general worker to easily perform wiring connection work and it takes a long time for wiring work on site. By solving the problem, it is possible to shorten the construction period.
SOLUTION: A metallic case 41, a plurality of breakers 48 housed in the case 41 for connecting or disconnecting a circuit, a bus bar 49 provided in the case 41 for grounding the negative side of the circuit, and a plurality of breakers 48 In order to connect the indoor wiring 21 via the male connector 61, a plurality of female connectors 51 connected to the plurality of breakers 48 and connected to the bus bar 49 are provided.
[Selection] Figure 4

Description

  The present invention relates to an improvement of a switchboard that houses a breaker in a case and connects or disconnects a circuit.

As a switchboard, a case in which a plurality of breakers are housed in a case, wiring is connected to the breakers, and a circuit is connected or disconnected is put into practical use.
A practical switchboard is practically sufficient if a predetermined number of breakers are accommodated and predetermined wiring is connected.

As such a switchboard, one in which a plurality of breakers are arranged on the left and right sides of the case is known (for example, see Patent Document 1).
JP 2003-143720 A (Page 4, FIG. 1)

The technique of Patent Document 1 will be described.
FIG. 6 is a diagram for explaining a conventional basic configuration.
In the distribution board 220, a plurality of breakers 222 are arranged in two rows on the case 221, the breaker secondary wiring 223 is connected to the load side of the breaker 222, and the load cable 225 is connected to the breaker secondary wiring 223 via the connection terminal block 224. Are connected.

In the switchboard 220, the operation of connecting the breaker secondary wiring 223 to the breaker 222 is generally performed by exposing the copper wire by stripping the coating of the breaker secondary wiring 223 and directly connecting the copper wire to the breaker 222. Is.
However, the work of connecting the copper wire to the breaker 222 by exposing the copper wire by stripping the cover of the breaker secondary wiring 223 requires skill, and is a work unless the operator has acquired a predetermined skill (qualification). I could not do it.
In addition, the work of connecting the breaker secondary wiring 223 to the breaker 222 must be performed on site, and the work time may be delayed because work time on site is required.

  That is, a distribution board (distribution board) that can easily perform the wiring connection work of the breaker and can reduce the work time of the wiring work on site is desired.

  The present invention solves the problem that breaker wiring connection work is difficult, and even ordinary workers can easily perform wiring connection work, and solves the problem that it takes a long time for wiring work on site. It is an object of the present invention to provide a switchboard that can shorten the work period.

  The invention of the switchboard according to claim 1 includes a metallic case, a plurality of breakers housed in the case for connecting or disconnecting a circuit, a bus bar provided in the case for grounding the negative side of the circuit, and a plurality of breakers In order to connect the indoor wiring via the male connector, a plurality of female connectors that are respectively connected to the plurality of breakers and connected to the bus bar are provided.

  The device according to claim 2 is characterized in that the female connector is mechanically fixed to the case side by electrically connecting the connection terminal of the female connector to the terminal portion of the breaker and the bus bar.

  The invention according to claim 3 is characterized in that the breaker is provided with a recess, and the female connector is provided with a protrusion that fits into the recess.

  The invention according to claim 4 is characterized in that the female connector is provided with a locking claw, and the male connector is provided with a locking portion for locking with the locking claw.

  According to the first aspect of the present invention, since the female connector is connected to the breaker and the bus bar, and the wiring is connected to the female connector via the male connector, the workability of the wiring work on site can be improved. As a result, there is an advantage that the construction period can be shortened.

  In the device according to claim 2, the female connector is mechanically fixed to the case side by electrically connecting the connection terminal of the female connector to the terminal portion of the breaker and the bus bar. Therefore, there is an advantage that a member for mechanically fixing the female connector to the case side can be omitted, and the attachment property of the female connector can be improved.

  According to the third aspect of the present invention, the breaker is provided with a recess and the female connector is provided with a protrusion that fits into the recess, so that the female connector can be positioned at a predetermined position of the breaker. As a result, there is an advantage that the workability of the female connector mounting work can be improved, and the female connector can be arranged with good appearance.

  According to the fourth aspect of the present invention, since the female connector is provided with the locking claw and the male connector is provided with the locking portion for locking with the locking claw, the male connector can be prevented from coming off from the female connector. As a result, there is an advantage that the reliability of connection between the female connector and the male connector can be improved.

The best mode for carrying out the present invention will be described below with reference to the accompanying drawings. The drawings are viewed in the direction of the reference numerals.
FIG. 1 is a system diagram of a switchboard according to the present invention.
The indoor wiring system 10 includes a switchboard (distribution panel) 20 that supplies electricity to a plurality of devices and outlets (not shown), a plurality of switchboard side indoor wirings 21 extending from the switchboard 20, and a plurality of switchboard side indoors. A wiring terminal unit 22 for connecting one of the wirings 21, a first indoor wiring 35 extending from the wiring terminal unit 22, and a first indoor connection connected to the tip of the first indoor wiring 35 The lighting device 30, the second indoor wiring 36 extending from the first indoor lighting device 30, and a second indoor lighting device (another indoor lighting device) connected to the tip of the second indoor wiring 36 Lighting device) 32, a third indoor wiring 37 extending from the second indoor lighting device 32, and a third indoor lighting device (another indoor lighting device) connected to the tip of the third indoor wiring 37. Lighting device) 33 and this third indoor lighting A fourth raceway 38 extending from location 33, the ground wire 39 to ground in the ground from the power distribution panel 20, made of.

  The 1st-3rd indoor illuminating device 30,32,33 is an illuminating device of the same structure, and the 1st-4th indoor wiring 35-38 is wiring corresponding to a single phase alternating current and earth | ground.

FIG. 2 is a plan view of a switchboard according to the present invention, and FIG. 3 is a view taken in the direction of arrow 3 in FIG.
As shown in FIG. 2, the switchboard (distribution panel) 20 includes a metal case (housing) 41,
A lid 42 attached to the case 41 so as to be freely opened and closed, a system ground frame 43 provided on the case 41, a main breaker 44 provided on the case 41, and first to third power feeds extending from the main breaker 44. Bars 45 to 47, a plurality of sub-breakers 48 (hereinafter referred to as “breakers 48”) connected to the first and second power feeding bars 45 and 46, and the system ground frame 43 The bus bars 49 and 49 are connected to the plurality of breakers 48, the plurality of female connectors 51 respectively connected to the bus bars 49 and 49, the operation part 52 of the main breaker 44, and the operation part 64 of the plurality of breakers 48 are exposed. Cover plate 54 covering the portion.

  The system ground frame 43 includes vertical frames 55 and 55 provided on the left and right sides of the case 41, an upper frame 56 passed to the vertical frames 55 and 55, an intermediate frame 57 passed to the vertical frames 55 and 55, Consists of.

  Further, as shown in FIG. 3, the system earth frame 43 serves as a support frame for the main breaker 44 and the plurality of breakers 48, and the breaker chassis 58 that supports the plurality of breakers 48, and the breaker Left and right breaker positioning plates 59, 59 attached to the chassis 58.

The first and second power supply bars 45 and 46 are connected to the plurality of breakers 48 as described above. The third power supply bar 47 is connected to the system ground frame 43.
As shown in FIG. 3, the switchboard side indoor wiring 21 (hereinafter referred to as “indoor wiring 21”) includes a cable 62 and a male connector 61 attached to one end of the cable 62. The plurality of female connectors 51 are connected to the indoor wiring 21 with the male connector 61.
The plurality of breakers 48 are positioned by the left and right breaker positioning plates 59, 59, and are connected to the first and second power feeding bars 45, 46, and the female connector 51 is connected.

Hereinafter, details of the breaker 48, the female connector 51, and the male connector 61 will be described.
FIG. 4 is an exploded perspective view of the breaker, female connector, and male connector of the switchboard shown in FIG.
The breaker 48 is provided with a breaker housing 63, an operation unit 64 for connecting or disconnecting a circuit by being provided on the upper part of the breaker housing 63, and first and second power supply bars 45, by being provided at one of the breaker housing 63. 46 (see FIG. 2), left and right connection terminals 65, 66 connected to the other side of the breaker housing 63, left and right terminal portions 67, 68 connected to the female connector 51 side, and the other of the breaker housing 63 The concave portion 69 for positioning the female connector 51 and the convex portions 69 a and 69 a positioned on the positioning plate 59 are provided.

  The female connector 51 is a connector that supports single-phase alternating current and grounding, and is connected to the female connector housing 71 and the terminal portions 67 and 68 of the breaker 48 (single-phase alternating current). 74, a third connection terminal 75 that is connected to the bus bar 49 by being attached to the bus bar 49 with an attachment screw 76, and a male connector insertion portion that is connected to the first to third connection terminals 73 to 75. 77, a locking claw 78 that locks the male connector 61, and a protrusion 79 that fits into the recess of the breaker 48.

  The third connection terminal 75 is a ground terminal and is grounded through the bus bar 49 and the ground wire 39. Accordingly, the first indoor lighting device 30 shown in FIG. 1 is grounded in the ground via the first indoor wiring 35, the switchboard side indoor wiring 21, and the ground wire 39 of the switchboard 10. The second and third indoor lighting devices 32 and 33 are similarly grounded.

Furthermore, the female connector 51 is mechanically fixed by electrically connecting the first to third connection terminals 73 to 75.
The third connection terminal 75 includes a hole 75 a through which the attachment screw 76 passes, and the bus bar 49 includes a screw hole 49 a into which the attachment screw 76 is screwed.

  The male connector 61 is a connector that supports single-phase alternating current and grounding, and is electrically connected to the male connector housing 81, the male terminal portion 83 that connects the cable 62 of the indoor wiring 21, and the male connector 61 to the female connector 51. In order to connect, the male side connection part 84 connected to the male connector insertion part 77, and the latching part 85 latched to the latching claw 78 in order to latch the male connector 61 to the female connector 51 are provided. .

  5 (a) and 5 (b) are views showing the assembled state of the breaker, female connector and male connector shown in FIG. 4, and FIG. 5 (a) is a plan view of the breaker 48, female connector 51 and male connector 61. (A) shows the side surface of the breaker 48, the female connector 51, and the male connector 61. FIG.

  In (a) and (b), the switchboard 20 (see FIG. 2) includes a metallic case 41, a plurality of breakers 48 housed in the case 41 for connecting or disconnecting circuits, and a circuit provided in the case 41. And a plurality of female connectors 51 connected to the bus bars 49 and connected to the bus bars 49 in order to connect the indoor wiring 21 to the plurality of breakers 48 via the male connectors 61. It can be said that

  By connecting the female connector 51 to the breaker 48 and the bus bar 49 and connecting the indoor wiring 21 to the female connector 51 via the male connector 61, it is possible to improve the workability of the wiring work in the field. As a result, the work period can be shortened.

  In (b), on the switchboard 20 (see FIG. 2), the first and second connection terminals 73 and 74 of the female connector 51 are electrically connected to the terminal portions 67 and 68 of the breaker 48, and the third By electrically connecting the connection terminal 73 to the bus bar 49, the female connector 51 is mechanically fixed to the case 41 (see FIG. 2) side. Therefore, a member for mechanically fixing the female connector 51 to the case 41 side can be omitted, and the attachment of the female connector 51 can be improved.

  In (b), in the switchboard 20 (see FIG. 2), the breaker 48 is provided with a recess 69, and the female connector 51 is provided with a protrusion 79 that fits into the recess 69, thereby positioning the female connector 51 at a predetermined position of the breaker 48. be able to. As a result, the workability of the mounting work of the female connector 51 can be improved, and the plurality of female connectors 51 can be arranged in an attractive manner.

  In (a) and (b), the switchboard 20 (see FIG. 2) is provided with a locking claw 78 on the female connector 51 and a locking portion 85 that locks on the locking claw 78 on the male connector 61. It is possible to prevent the male connector 61 from being disconnected from the female connector 51. As a result, the reliability of connection between the female connector 51 and the male connector 61 can be improved.

  As shown in FIG. 4, the switchboard according to the present invention is provided with the locking claw 78 on the female connector 51 and the locking portion 85 that locks the locking claw 78 on the male connector 61. The present invention is not limited to this, and the male connector may be provided with a locking claw, and the female connector may be provided with a locking portion for locking with the locking claw.

  In the switchboard according to the present invention, as shown in FIG. 4, the breaker 48 is provided with a recess 69, and the female connector 51 is provided with a protrusion 79 that fits into the recess 69. However, the present invention is not limited to this. And a female connector provided with a recess.

  The switchboard according to the present invention is suitable for use in indoor wiring in stores such as convenience stores and exhibition booths.

It is a system diagram of a switchboard according to the present invention. It is a top view of the switchboard which concerns on this invention. FIG. 3 is a view taken in the direction of arrow 3 in FIG. 2. FIG. 3 is an exploded perspective view of a breaker, a female connector, and a male connector of the switchboard shown in FIG. 2. It is a figure which shows the assembly | attachment state of the breaker shown by FIG. 4, a female connector, and a male connector. It is a figure explaining the conventional basic composition.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 20 ... Power distribution board, 21 ... Indoor wiring, 41 ... Case, 48 ... Breaker, 49 ... Bus bar, 51 ... Female connector, 61 ... Male connector, 67, 68 ... Terminal part, 73-75 ... Connection terminal, 78 ... Locking claw 79 ... projections, 85 ... locking portions.

Claims (4)

  A metal case, a plurality of breakers housed in the case for connecting or disconnecting a circuit, a bus bar provided in the case for grounding the negative side of the circuit, and indoor wiring through the male connector to the plurality of breakers A plurality of female connectors that are connected to the plurality of breakers and connected to the bus bar, respectively.   The switchboard according to claim 1, wherein the female connector is mechanically fixed to the case side by electrically connecting a connection terminal of the female connector to a terminal portion of the breaker and the bus bar.   The switchboard according to claim 1, wherein the breaker is provided with a recess, and the female connector is provided with a protrusion that fits into the recess.   The switchboard according to claim 1, wherein the female connector is provided with a locking claw, and the male connector is provided with a locking portion that locks the locking claw.

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