JPH11341618A - Panelboard - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the workability of wiring work to electric equipment on a panelboard. SOLUTION: A panelboard is provided with a plate-like back board member 1 which is fitted to a wall surface W while electric equipment, such as the master switch 3, branch switches 4, etc., are attached to the front face of the member 1, a rectangular frame body 10 attached to the back board member 1 along the periphery of the member 1, an inner lid 40 which is attached to the frame body 10 in an openable/closeable state to cover the front face of the member 1 exposed from the opening of the frame body 10, and a door 50 which is attached to the frame body 10 in an openable/closeable state to cover the front faces of the frame body 10 and inner lid 40. Since the wiring to the electric equipment can be performed in a state where the frame body 10 is removed, the workability of the wiring work can be improved.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a distribution board.

[0002]

2. Description of the Related Art Conventionally, electric equipment such as a main switch and a branch switch is housed in a box having a bottom plate and four peripheral side plates, and an opening of the box is opened and closed by a middle lid and an outer lid. (Japanese Unexamined Patent Publication No. 9-322332)
Reference).

[0003]

However, in the conventional example described in the above-mentioned publication, since the electric equipment is housed in the box, the four peripheral side plates of the box interfere with the electric equipment. There is a problem that the connection work of the cable is difficult.

An object of the present invention is to solve the above-mentioned problem, and an object of the present invention is to provide a distribution board with improved workability of wiring to an electric device.

[0005]

According to a first aspect of the present invention, in order to achieve the above object, an electric device such as a main switch or a branch switch is disposed on a front surface and is attached to a wall. A back plate member, a frame body attached to the back plate member along the four circumferences of the back plate member, and a back plate attached to at least one of the frame body and the back plate member to be openable and closable. A door that covers the front surface of the member, wherein the electrical device is disposed and a back plate member attached to a wall is separated from a frame surrounding the electrical device. Wiring work to electric equipment can be performed in a state where it is detached from the plate member, and workability for wiring to electric equipment can be improved.

According to a second aspect of the present invention, in the first aspect of the invention, the back plate member is formed to have a substantially U-shaped cross-sectional shape in which at least both left and right ends project toward the front side.
Each end face is housed in the frame body, and the positioning when attaching the frame body to the back plate member is facilitated by both ends protruding to the front side, and all the end faces of the back plate member Is stored in the frame body, so that the back plate member does not protrude out of the frame body, for example, there is no risk of injury to the hand at the end face of the back plate member, and the appearance can be improved.

According to a third aspect of the present invention, in the first or second aspect of the present invention, a cable supporting portion for supporting a cable connected to the electric device is provided on the back plate member. By supporting the cable thus set on the cable supporting portion, it is possible to prevent the cable from being pinched between the frame and the back plate when the frame is attached to the back plate.

[0008] The invention of claim 4 is the invention of claim 1 or 2 or 3.
In the invention, the frame body is a pair of side plate members located near both ends in the left-right direction of the back plate member, and a pair of bridge members are positioned near both ends in the vertical direction of the back plate member and are bridged between the side plate members. It is characterized by being composed of a bridge member. For example, when changing the left and right dimensions of the back plate member, it can be handled by replacing only the bridge member while leaving the side plate member as it is, and also changing only the vertical dimension of the back plate member In some cases, it is possible to cope by replacing only the side plate members while leaving the bridge member as it is, so that the parts can be shared.

According to a fifth aspect of the present invention, in the invention of the fourth aspect, the pair of side plate members are formed of an extruded material of aluminum. Since the side plate members are long, the distribution board can be reduced in weight by forming the side plate members from extruded aluminum, and the side plate has a uniform cross-sectional shape even if the extruded material is cut at any position. The member is easily obtained.

According to a sixth aspect of the present invention, in the fifth aspect of the invention, the pair of side plate members has an opening extending in a direction between the pair of bridge members, and the opening communicates with the opening and is wider than the opening. And at least a part of the connecting member fixed to the bridge member is fitted into the hollow portion and the side plate member from the outside of the opening by a screw having a head wider than the opening. It is characterized in that the connecting member is tightened and fixed, and the bridge member can be attached with the same connecting member even when the length of the side plate member is changed,
Parts can be shared.

[0011] The invention of claim 7 is the invention of claim 4 or 5 or 6.
The invention according to claim 1, further comprising a lid member for closing a connecting portion between the side plate member and the bridge member, wherein the lid member is formed with a slit communicating with an electric device storage space inside the frame body, The gas generated when the switch operates can be quickly discharged to the outside from the slit, and the distribution board itself can be prevented from being deformed by the gas.

According to an eighth aspect of the present invention, in the seventh aspect of the present invention, the slit is inclined from the inside toward the outside in the direction of the back plate member, and the inside of the distribution board can be seen through the slit. Can improve the appearance.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

As shown in FIGS. 1 and 8, the distribution board according to the present embodiment has a substantially flat plate-like structure in which electric devices such as a main switch 3 and a branch switch 4 are arranged on the front surface and attached to a wall W. Back plate member 1, a rectangular frame body 10 attached to the back plate member 1 along four circumferences of the back plate member 1, and an opening of the frame body 10 An inner lid 40 that covers the front surface of the back plate member 1 exposed from the portion, and a door 50 that is also attached to the frame 10 so as to be openable and closable and covers the front surface of the frame 10 and the inner lid 40.

The back plate member 1 has a substantially rectangular flat plate shape as shown in FIGS. 1 and 3, and is mounted on a wall surface W as shown in FIG. ) (Hereinafter, referred to as a “base”) 1a is formed in a substantially U-shaped cross-section that protrudes toward the front side in the vertical direction. Thereby, the positioning when the frame body 10 is attached to the back plate member 1 can be easily performed. Then, the inner unit block 2 is attached to the flat portion 1b sandwiched between the base portions 1a.

As shown in FIG. 1, the inner unit block 2 has a pair of mounting plates 2b mounted between a pair of frames 2a formed in a substantially U-shaped cross section and has a front side of each mounting plate 2b. The main switch 3 and a plurality of branch switches 4 are attached to the main switch. As shown in FIG. 2, the main switch 3 and each branch switch 4 are electrically connected by three strip-shaped conductive bars 2c, and the connection point between each branch switch 4 and the conductive bar 2c is changed. It is covered by the insulating cover 2d. Then, the fixing screw 2e projecting from the vicinity of the four corners of the flat portion 1b of the back plate member 1 to the front side is inserted into the screw insertion holes at both ends of the frame 2a, and the nut 2f is fastened to the tip of the fixing screw 2e. It is fixed by attaching to the front surface of the back plate member 1.

On the front side of the base 1a of the back plate member 1, three guide members 7 are mounted so as to be arranged at substantially equal intervals in the vertical direction. The guide member 7 comes into contact with the inner peripheral surface of the frame body 10 attached along the four circumferences of the back plate member 1 as described later, and guides the frame body 10 when attaching to the back plate member 1. (See FIG. 2).

The guide member 7 is, as shown in FIG.
a, a pair of rising pieces 7b erected from the fixing piece 7a, a connecting piece 7c for connecting the distal ends of the rising pieces 7b, and a standing piece 7a. Upper piece 7b
A cable support piece 7d, which is vertically erected and whose distal end is capable of coming into contact with the connecting piece 7c so as to be able to freely contact and separate, is integrally formed. The fixing piece 7a is provided with a pair of screw holes 7e, and the guide member 7 is mounted on the base member 1 by screws 7f screwed into the screw holes (not shown) of the base 1a through the screw holes 7e. Part 1
a (see FIG. 2). Here, the guide member 7 is attached to the base 1a such that the outer surface of the rising piece 7b of the guide member 7 and the side end surface of the base 1a of the back plate member 1 are flush. The tip of the rising piece 7b is inclined inward (to the side of the cable supporting piece 7d), so that the frame 10 can be easily guided when the frame 10 is attached to the back plate member 1. Wearing work is further facilitated.

Here, the cable 60 connected to the main switch 3 and the branch switch 4 is fixed to a cable support piece 7d of the guide member 7 with a binding band 61 or the like as shown in FIG. The cable 60 is arranged further inside. By doing so, the frame 10
When attaching the cable 6 between the frame 10 and the back plate member 1
The work of attaching the frame 10 can be easily performed by preventing the insertion of the frame 10. Further, since the cable 60 is supported by the cable supporting piece 7d, the cable 60 does not move outside the rising piece 7b, and the cable supporting piece 7d tends to be bent inward by the weight of the cable 60. Also, since the distal end portion of the cable support piece 7d abuts on the connection piece 7c, the cable 60 can be prevented from being bent and the cable 60 can be firmly fixed.

Further, as shown in FIG. 3 and FIG.
A first hooking member 5 having a hooking hole 5a is fixed to a lower end portion of a by a screw 5e. This first hooking member 5
Is formed by integrally forming a fixed piece 5b attached to the base 1a and a main piece 5c standing upright from an edge of the fixed piece 5b, and a substantially rectangular hooking hole is formed at the tip of the main piece 5c. 5a is drilled. The strength is improved by bending the side edge of the main piece 5c. A bent piece 5d is provided at the tip of the main piece 5c. When the frame 10 is attached as shown in FIG. 2, the bent piece 5d comes into contact with the back surface of the frame 10. I have.

Further, as shown in FIGS. 3, 4 and 16, a second hooking member 6 having a claw 6a is fixed to the upper end of the base 1a by a screw 6d. The second hooking member 6 includes a fixing piece 6b attached to the base 1a and a fixing piece 6
and a main piece 6c standing upright from an end of the main piece 6b, and a claw piece 6a protruding upward from a tip portion of the main piece 6c.
Is provided.

On the other hand, as shown in FIG. 10, the frame 10 has a pair of side plate members 11 and 11 located near both ends in the left-right direction of the back plate member 1, and a pair of side plate members 11 located near both ends in the vertical direction of the back plate member 1. A pair of bridge members 1 bridged between the side plate members 11, 11
2 and 12. Since the frame body 10 is composed of the side plate members 11, 11 and the bridge members 12, 12, for example, when changing the left and right dimensions of the back plate member 1, only the bridge member 12 is used while the side plate member 11 is left as it is. It can be dealt with by replacing it, and when only the vertical dimension of the back plate member 1 is changed, it can be dealt with by replacing only the side plate member 11 while leaving the bridge member 12 as it is.

As shown in FIGS. 10 and 11, the side plate member 11 is formed in a cylindrical shape having a substantially L-shaped cross section by extruded aluminum (die-casting), and has grooves along the vertical direction near both ends of the inner surface. Openings 11a, 11a are formed. Further, a hollow portion 11b having a substantially convex cross section and communicating with the opening 11a and having at least a portion wider than the opening 11a is formed in the side plate member 11.
Along the vertical direction. Also, the side plate member 1
A plurality of ridges 11c are formed at appropriate locations on the inner side surface of the unit 1 along the vertical direction. In addition, since the distribution board is generally longer in the vertical dimension than in the left and right dimensions, if the side plate member 11 is formed of an extruded material of aluminum, the weight of the distribution board can be reduced, and the extruded material can be made arbitrary. There is an advantage that even when cut at a position, the side plate member 11 has a uniform cross-sectional shape and a desired length dimension.

The bridge member 12 is formed of, for example, a steel plate in a plate shape having a substantially L-shaped cross section having a top plate portion 12a and a front plate portion 12b. Projecting pieces 12c are formed at both ends in the longitudinal direction of the top plate 12a. The projecting piece 12c has a rectangular ventilation hole 12d substantially in the center as shown in FIG.
However, a pair of locking holes 12e, 12e are provided at the base end, and a screw hole 12f is provided at a position closer to the back than the ventilation hole 12d. Further, screw holes 12g are provided near both ends of the front plate portion 12b as shown in FIG. However, in the vicinity of both ends of the front plate portion 12b of the lower bridge member 12, there are provided exposure holes 12h for exposing an operation handle 17d of the mounting block 17 described later to the front side.

Here, the side plate members 11 and the upper bridge member 12 are connected to the first connecting member 13 and the second connecting member 1.
4, the side plate members 11, 11 and the lower bridge member 12 are connected to each other by a third connection member 15 and a fourth connection member 1.
6 are connected. The first to fourth connecting members 1
For 3 to 16, a pair of mirror images are used.

The first connecting member 13 includes a mounting piece 13 a having a screw hole 13 b for a mounting screw 12 i screwed into a screw hole 12 f provided in the projecting piece 12 c of the bridge member 12, and one of the side plate members 11. A fitting piece 13c fitted into the hollow portion (hollow portion formed on the surface facing the other side plate member 11) 11b, and a claw of the second hooking member 6 attached to the base 1a of the back plate member 1. Hooking piece 13d hookingly engaged with piece 6a
Are formed integrally by bending a metal plate. The fitting piece 13c is formed with a pair of screw holes 13e facing the opening 11a communicating with the hollow portion 11b when fitted into the hollow portion 11b.

As shown in FIG. 10, the second connecting member 14 is formed by bending a substantially U-shaped main portion 14a and a portion extending from one edge of the main portion 14a. (A hollow portion formed on the surface facing the back plate member 1) 11b, a fitting piece 14b fitted into the hollow portion 11b, and a main portion 14a
An L-shaped piece 14c extending from the other end and having a locking hole 14d is integrally formed by bending a metal plate. An exposure window 14e is provided on the front surface of the main portion 14a.
A screw hole 14f and a positioning protrusion 14g are provided, and a pair of screw holes 14h facing the opening 11a communicating with the hollow portion 11b while being fitted into the hollow portion 11b are formed in the fitting piece 14b.

The third connecting member 15 includes a mounting piece 15 a having a screw hole 15 b for a mounting screw 12 i screwed into a screw hole 12 f provided in the projecting piece 12 c of the bridge member 12, and one of the side plate members 11. A fitting piece 15c fitted into the hollow portion (hollow portion formed on the surface facing the other side plate member 11) 11b is formed integrally by bending a metal plate material. Note that the fitting piece 15c is fitted into the hollow portion 11b and the opening 11 communicating with the hollow portion 11b.
A pair of screw holes 15d facing a are formed.

The fourth connecting member 16 is similar to that shown in FIGS.
As shown in the figure, the second connecting member 14 has the same shape as that of the second connecting member 14, and is formed by bending a substantially U-shaped main portion 16a and a portion extending from one end edge of the main portion 16a. (A hollow portion formed on the surface facing the back plate member 1) 11b, a fitting piece 16b fitted into the hollow portion 11b, and a locking hole 16d extending from another end edge of the main portion 16a. L provided
The shape piece 16c is formed integrally by bending a metal plate. An exposure window 16e, a screw hole 16f, and a positioning projection 16g are provided on the front surface of the main portion 16a, and the fitting piece 16b faces the opening 11a communicating with the hollow portion 11b while being fitted into the hollow portion 11b. A pair of screw holes 1
6h are formed.

Here, a mounting block 17 is attached to the fourth connecting member 16. This mounting block 17 is shown in FIG.
As shown in FIG. 2, the hooked body 17b protrudes from one side of the synthetic resin body 17a so as to be able to advance and retreat, and is engaged by a coil spring (not shown) provided in the housing 17a.
Are elastically biased in the protruding direction. The tip of the hooked body 17b is inclined from the front side to the back side. Vessel 1
An operation window 17c is opened on the front surface of 7a, and an operation handle 17d is exposed from the operation window 17c.
The operation handle 17d is provided within the body 17a.
7b is swingably attached to the operating handle 17d.
A driving piece 17e integrally formed with the hook member 17b extends to the tip of the hooked body 17b. Also, on both sides of the container 17a,
A mounting piece 17f is formed at one end of the container body 17a so as to be flexibly supported. That is, the fourth connecting member 16
Of the mounting block 17 from the front side to the exposed window 16e
If the insertion block 7a is inserted, the mounting block 17 is mounted on the fourth connecting member 16 by sandwiching the peripheral edge of the exposure window 16e between the mounting portion 17f and the flange portion 17g formed on the front side of the body 17a. (See FIG. 10).

The first to fourth connecting members 13 to 16
Are respectively attached to the bridge members 12, 12, the fitting pieces 13c of the connecting members 13 to 16 are fitted into the corresponding hollow portions 11b of the side plate member 11, respectively, and are formed in the fitting pieces 13c. 11 are screwed into a pair of screw holes 13e facing the opening 11a from the outside of the opening 11a and screwed together with the assembling screws 18 having a head wider than the opening 11a, so that the side plate members 11, 11 and the bridge member are connected. The frame 10 can be formed by connecting the frames 12 and 12. Here, since the opening 11a is provided in the longitudinal direction (vertical direction) of the side plate member 11, even if the length of the side plate member 11 changes, the length of the side plate member 11 of any length is changed. Also, the same connecting members 13 to 16 can be used to connect to the bridge member 12, and the connecting members 13 to 16 can be shared. Further, in the present embodiment, the first connecting member 13 and the fourth connecting member 16 for connecting the side plate member 11 and the bridge member 12 respectively have the hooking piece 13 d and the hooked body 1.
7b is integrally formed, so that the connection between the side plate member 11 and the bridge member 12 and the attachment of the frame body 10 to the back plate member 1 can be performed by the same member, and the number of parts can be reduced. It is. Here, the second and fourth connecting members 14,
By fitting the positioning projections 14g, 16g provided on the 16 into the positioning holes 12j provided on the front plate portion 12b of the bridge member 12, the positioning of the second and fourth connecting members 14, 16 with respect to the bridge member 12 is facilitated. You can do it. The operation handle 17d of the mounting block 17 is
Exposure hole 12 provided in front plate portion 12b of lower bridge member 12
h to the front side.

Further, the connecting portion (four corners of the frame 10) between the side plate member 11 and the bridge member 12 is
Is closed by. As shown in FIGS. 10 and 14, the lid member 19 includes a main portion 19a having a concave portion 19b formed on the back surface side, and a pair of engaging claws 19c, 19c protruding from the back surface side of the main portion 19a. A plurality of rod-shaped projections 19d protruding at appropriate positions near the back surface side peripheral edge of the main portion 19a are integrally formed of synthetic resin. Thus, the engagement claws 19c, 1
9c is locked and fixed to a pair of locking holes 12e, 12e provided in the projecting piece 12c of the bridge member 12, and a plurality of rod-shaped projections 19d are formed at appropriate locations on the inner surface of the side plate member 11. The lid member 19 is fixed to the side plate member 11 and the bridge member 12 by press-fitting into the gaps between them (see FIGS. 1 and 15).

Here, as shown in FIG. 14, the main portion 19a of the lid member 19 communicates with the concave portion 19b on the back side and extends in the direction of the back plate member 1 from the inside (the concave portion 19b side) to the outside. A plurality of inclined slits 19e are provided. Lid member 1
In a state where the mounting member 9 is mounted, a gap is formed between the connecting portion (projection piece 12c) of the side plate member 11 and the bridge member 12 (projection piece 12c) and the lid member 19 by the recess 19b, and this gap is provided in the projection piece 12c. It communicates with the inside of the frame 10 through the ventilation holes 12d. In other words, in the completed state of the distribution board, the main switch 3 and the branch switch 4 are disposed inside the frame 10 (electric device storage space), and these switches 3 and 4 operate (so-called trip). When this occurs, gas is generated by the arc, and the pressure of this gas causes the inner lid 40 and the door 5
However, according to the present embodiment, the gas is led out to the gap through the ventilation hole 12d, and is quickly discharged to the outside of the distribution board through the slit 19e of the lid member 19 according to the present embodiment. be able to. As a result, it is possible to prevent the distribution board itself from being deformed by the gas. Also, since the slit 19e is inclined in the direction of the back plate member 1 from the inside to the outside, the slit 1e
The appearance can be improved by preventing the inside of the distribution board from being seen through 9e.

The frame 10 constructed as described above is attached to the back plate 1 as follows. First, the upper part of the frame body 10 is lowered downward from the upper side of the back plate member 1, and the hook pieces 13d, 1 formed integrally with the first connecting members 13, 13 are formed.
The 3d is hooked and engaged with the claw pieces 6a, 6a of the second hooking members 6, 6 attached to the base 1a of the back plate member 1, respectively.
Next, when the lower side of the frame 10 is pressed toward the back plate 1 while bringing the inner surface of the frame 10 into contact with the guide member 7 attached to the back plate 1, the fourth connecting members 16, 16 The hooked body 17b of the mounting block 17 attached to the first hooking member 5 comes into contact with the tip of the main piece 5c of the first hooking member 5 and is pushed into the body 17a.
Is reached, the hooked body 17b is returned by the spring force of the coil spring, is hooked in the hooking hole 5a, and the frame 10 can be attached to the back plate member 1 (see FIGS. 2 and 18). . In this way, the upper hook 13 of the frame 10
d and 13d are hooked and engaged with the claw pieces 6a and 6a of the back plate member 1, respectively.
Are hooked into the hook holes 5 a of the back plate member 1, so that the frame 10 can be easily attached to the back plate member 1. In addition, since a high portion (hook 13d) of the frame 10 can be hooked first and a low portion (the lower hook 17b) of the frame 10 can be hooked later, the work is further facilitated. Since the work can be performed by pressing the frame body 10 toward the back plate member 1 from the front side, workability can be improved.

The upper hook 13d, 1
3d is engaged with the claw pieces 6a, 6a of the back plate member 1 from above and below, respectively, so that the frame body 10 in the state where the frame body 10 is attached to the back plate member 1 is vertically rattled. Can be suppressed between the hook pieces 13d, 13d and the claw pieces 6a, 6a, and the hooked body 17b on the lower side of the frame 10 is hooked on the hook holes 5a of the back plate member 1 from the left and right directions. Frame 1 with frame 10 attached to back plate member 1
The rattling of the hook 17a and the hook hole 5a
Can be suppressed between the first hooking member 5 and the first hooking member 5.

Incidentally, the frame 10 is detached from the back plate member 1 in the following manner. First, the mounting block 17
When the operation handle 17d is operated, the hooked body 17b is pulled into the body 17a, and the hook with the hook hole 5a can be released. Here, when the operation handle 17d is operated, the driving piece 1 formed integrally with the operation handle 17d
7e swings and comes into contact with the peripheral edge of the hook hole 5a so that the hooked body 1
7b is pulled away from the periphery of the hook hole 5a. Thereby, the operation handle 17d can be easily operated by reducing the resistance to the movement of the hooked body 17b.

On the other hand, the inner lid 40 is formed in a rectangular plate shape as shown in FIG.
Windows 41 for exposing the handles 3a, 4a of the vehicle. A shaft 42 pivotally attached to a bearing hole (not shown) provided in the second connecting member 14 is protruded from one end of the upper side surface of the inner lid 40, and a fourth end is provided on one end side of the lower side surface. Is provided with a shaft hole 43 to which a rotating shaft 16i projecting from the connecting member 16 is pivotally attached. Thus, the shaft 42 on the upper surface is
Of the first connecting member 14 and the fourth connecting member 16
The inner lid 40 is attached to the frame 10 so as to be openable and closable by pivotally connecting the rotating shaft 16i protruding to the shaft hole 43 on the lower surface. Here, locking devices 44, 44 having the same structure as the mounting block 17 mounted on the fourth connecting member 16 are mounted near the upper and lower ends on the free end side of the inner lid 40, respectively, so as to be able to advance and retreat freely. By locking the projecting locking claws (the hooked body 17b of the mounting block 17) into the locking holes 14d, 16d of the second and fourth connecting members 14, 16, the inner lid 40 is fixed to the frame 10. In contrast, it can be kept closed. And the locking device 4
By operating the operation handle 44a (operation handle 17d in the mounting block 17) 44a, the locking claw and the locking hole 1 are operated.
The inner lid 40 can be opened by releasing the engagement with 4d and 16d. A handle 45 is provided substantially at the center of the free end of the inner lid 40 in the vertical direction to facilitate opening and closing operations of the inner lid 40.

On the other hand, as shown in FIG. 8, a door 50 is attached to the frame 10 so as to freely open and close the front surface of the frame 10.
As shown in FIG. 7, the door 50 is formed in a rectangular plate shape having peripheral walls 51 and 52, and on the upper side of one of the left and right peripheral walls 51, the front of the front plate portion 12 b of the upper bridge member 12 is provided. A shaft 53 pivotally attached to the bearing hole 20a of the hinge member 20 attached to one end is protruded, and a hinge member attached to one end of the front surface of the front plate portion 12b of the lower bridge member 12 is provided below the inner surface. A shaft hole 54 to which the shaft 21a of the 21 is pivotally mounted is provided. The shaft 50 is pivotally connected to the bearing hole 20 a of the hinge member 20, and the shaft 21 a of the hinge member 21 is pivotally connected to the bearing hole 54, so that the door 50 is attached to the frame 10 so as to be freely opened and closed. Note that a magnet catch (not shown) is provided at substantially the center in the vertical direction on the free end side of the back surface of the door 50, and the door 50 can be held in a closed state with respect to the frame 10 by this magnet catch. . In addition, a handle 55 is provided substantially at the center of the free end side of the door 50 in the vertical direction to facilitate opening and closing operations of the door 50.

When installing the distribution board of this embodiment, the inner unit block 2 is attached to the back plate member 1 attached to the wall surface W as shown in FIG. After wiring of the switch 3 and the branch switch 4),
The frame 10 is attached to the back plate member 1 as shown in FIG. Since wiring to the electric device can be performed with the frame 10 removed, workability of wiring to the electric device can be improved. Then, after attaching the frame body 10, the inner lid 40 is attached (see FIG. 6), and finally, the door 50 is attached, whereby the construction of the distribution board is completed (see FIG. 8). The frame 10
In a state in which the back plate member 1 is attached to the back plate member 1, since each end face of the back plate member 1 is housed in the frame body 10 as shown in FIG. For example, there is an advantage that there is no risk of injury to the hand at the end face of the back plate member 1 and the appearance can be improved.

[0040]

According to the first aspect of the present invention, there is provided a substantially flat back plate member which is mounted on a wall by arranging an electric device such as a main switch or a branch switch on the front surface, and a four-round structure of the back plate member. A frame body attached to the back plate member along, and a door that is openably and closably attached to at least one of the frame body and the back plate member and covers the front surface of the back plate member, Since the back plate member on which the electric device is installed and mounted on the wall is separate from the frame surrounding the electric device, wiring work to the electric device can be performed with the frame removed from the back plate member. In addition, there is an effect that the workability of wiring to an electric device can be improved.

According to a second aspect of the present invention, the back plate member is formed to have a substantially U-shaped cross-sectional shape in which at least both left and right ends project toward the front side, and each end face is housed in the frame. Both ends projecting to the front side facilitate alignment when attaching the frame to the back plate member, and
Since all the end surfaces of the back plate member are housed in the frame, the back plate member does not protrude out of the frame, and for example, there is no risk of injury to the hand at the end surface of the back plate member, and the appearance is improved. There is an effect that it can be improved.

According to the third aspect of the present invention, since the cable supporting portion for supporting the cable connected to the electric device is provided on the back plate member, the cable connected to the electric device is supported by the cable supporting portion. When the frame is attached to the back plate member, the cable can be prevented from being pinched between the frame and the back plate member.

According to a fourth aspect of the present invention, the frame body includes a pair of side plate members located near both ends in the left-right direction of the back plate member.
Since it is constituted by a pair of bridge members bridged between the side plate members located near both ends in the vertical direction of the back plate member,
For example, when changing the left and right dimensions of the back plate member, it is possible to respond by replacing only the bridge member while leaving the side plate member as it is,
Further, when only the vertical dimension of the back plate member is changed, it can be dealt with by replacing only the side plate member while keeping the bridge member as it is, so that there is an effect that the components can be shared.

According to the fifth aspect of the present invention, since the pair of side plate members are formed of extruded aluminum, the distribution panel is generally longer in the vertical direction than in the left and right dimensions. By forming the extruded material, it is possible to reduce the weight of the distribution board, and even if the extruded material is cut at an arbitrary position, the extruded material has a uniform cross-sectional shape, and a side plate member having a desired length is easily obtained. .

According to a sixth aspect of the present invention, the pair of side plate members are provided with an opening extending in a direction between the pair of bridging members, and a hollow portion communicating with the opening and wider than the opening.
At least a part of the connection member fixed to the bridge member is fitted into the hollow portion, and the connection member is tightened and fixed to the side plate member from the outside of the opening by a screw having a head wider than the opening. Therefore, even when the length dimension of the side plate member is changed, the bridge member can be attached with the same connecting member, and there is an effect that components can be shared.

According to a seventh aspect of the present invention, there is provided a cover member for closing a connecting portion between the side plate member and the bridge member, and a slit is formed in the cover member so as to communicate with the electric equipment storage space inside the frame. The gas generated when the switch in the switchboard operates can be quickly released to the outside from the slit, and the gas can be prevented from deforming the switchboard itself.

According to the eighth aspect of the present invention, since the slit is inclined from the inside to the outside in the direction of the back plate member, it is possible to prevent the inside of the distribution board from being seen through the slit and improve the appearance. There is an effect that can be.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing an embodiment of the present invention.

FIG. 2 is a side sectional view of the same as viewed from below.

FIG. 3 is a perspective view of a back plate member in the above.

FIG. 4 is a perspective view showing a state in which the back plate member is attached to a wall surface in the above.

FIG. 5 is a perspective view of the inner lid in the above.

FIG. 6 is a perspective view showing a state where the door is removed.

FIG. 7 is a perspective view of the door in the above.

FIG. 8 is a perspective view showing a state where the door is opened.

FIG. 9 is a perspective view of a guide member of the above.

FIG. 10 is an exploded perspective view of the frame body in the above.

FIG. 11 is a side sectional view of a main part of the same as viewed from below.

FIG. 12 is an exploded perspective view of a fourth connecting member in the above.

FIG. 13 is a top view of an essential part of the frame body with the lid member removed from the above.

FIG. 14 is a side sectional view of the lid member of the above.

FIG. 15 is a top view of a main part of the frame body in the above.

FIG. 16 is a side sectional view of the main part as viewed from the right direction in the above.

FIG. 17 is a cross-sectional view of the same as seen from the front.

FIG. 18 is a side sectional view of a main part as viewed from the right direction in the above.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 back plate member 2 internal unit block 3 main switch 4 branch switch 5 first hook member 6 second hook member 10 frame W wall surface

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Akinori Uchimura 1048 Odomo Kadoma, Kadoma City, Osaka Inside Matsushita Electric Works, Ltd.

Claims (8)

[Claims] An electric device such as a main switch or a branch switch is disposed on the front surface, and is attached to a wall. A substantially flat back plate member is mounted on the back plate member along four circumferences of the back plate member. A distribution board comprising: a frame to be attached; and a door that is openably and closably attached to at least one of the frame and the back plate member to cover a front surface of the back plate member. 2. The back plate member according to claim 1, wherein at least both right and left ends are formed in a substantially U-shaped cross section projecting to the front side, and each end face is housed in the frame. The distribution board according to 1. 3. The distribution board according to claim 1, wherein a cable supporting portion for supporting a cable connected to the electric device is provided on the back plate member. 4. The frame body includes a pair of side plate members located near both ends in the left-right direction of the back plate member, and a pair of bridge members located near both ends in the vertical direction of the back plate member and bridged between the side plate members. The distribution board according to claim 1, wherein the distribution board comprises a bridge member. 5. The distribution board according to claim 4, wherein said pair of side plate members are formed of an extruded aluminum material. 6. The pair of side plate members are provided with an opening extending in a direction between the pair of bridging members, and a hollow portion communicating with the opening and wider than the opening, and fixed to the bridging member. At least a part of the connection member is fitted into the hollow portion and is fixed to the side plate member from the outside of the opening by a screw having a head wider than the opening. The distribution board according to claim 5, wherein 7. A cover member for closing a connecting portion between the side plate member and the bridge member, wherein a slit is formed in the cover member so as to communicate with an electric equipment storage space inside the frame. Or the distribution board according to 5 or 6. 8. The distribution board according to claim 7, wherein the slit is inclined from the inside toward the outside in the direction of the back plate member.