JP3174074U - Electrical equipment storage case - Google Patents

Abstract

An electric device housing case for supporting base plates of different sizes while suppressing an increase in the size of a support member and suppressing an increase in the number of parts is provided.
A screw portion 21S of a rod-like portion 21 of a support member 20 is inserted into a slit ES formed in a back wall 1 in a form of screwing, and the head 22 is inserted into the intermediate wall 1A of the back wall 1 by this screwing. The support member 20 is fixed in a state where it is pressed against. The base plate B is fastened and fixed by a nut 23 that is screwed to the screw portion 21S of the rod-like portion 21. The base plate B is provided with a main breaker and a branch breaker.
[Selection] Figure 6

Description

  In the present invention, an internal space is formed by a vertical wall-like back wall and a side wall standing up from the outer periphery of the back wall, and a base plate is supported on the back wall via a support member in the internal space, The present invention relates to an electrical equipment housing case provided with electrical equipment on the base plate.

  As an example of an electrical equipment housing case configured as described above, a distribution board that performs power distribution is taken as an example. Patent Document 1 includes a back wall (back plate in the literature) and a side wall (frame in the literature). ), An internal space is formed, and in this internal space, a mounting base is screwed to the back wall, a support member is attached to this mounting base, and a base plate (the mounting plate in the literature) is supported on this mounting plate And the structure provided with the electric equipment with respect to this base board is shown.

  Moreover, in patent document 2, an internal space is formed in the site | part enclosed by a back wall (base plate in literature) and a side wall (side plate in literature), and the attachment plate which becomes horizontally long is attached to a back wall, A configuration is shown in which a receiving plate is attached, a base plate (substrate in the literature) is supported on the receiving plate, and electrical equipment is provided to the base plate. In the configuration of Patent Document 2, since the left and right receiving plates are configured to be movable in the horizontal direction, base plates having different lengths can be supported.

JP 2007-60879 A Japanese Patent Laid-Open No. 11-155206

  The size of the base plate provided in the electric device housing case varies depending on the number of electric devices and the size of the electric devices. From this point of view, it is conceivable to adopt a configuration that can cope with different base plate sizes as described in Patent Document 2. However, in the configuration of Patent Document 2, since the receiving plate is provided so as to be movable with respect to the mounting plate, not only the mounting plate is enlarged, but also the configuration in which the base plate is supported by the receiving plate provided in the mounting plate. For this reason, the number of parts increases and there is room for improvement.

  An object of the present invention is to rationally configure an electrical equipment housing case that can support base plates of different sizes while suppressing an increase in the size of the support member and suppressing an increase in the number of parts.

A feature of the present invention is that an internal space is formed by a vertical wall-shaped back wall and a side wall standing up from the outer periphery of the back wall, and a base plate is supported on the back wall via a support member in the internal space. An electric equipment storage case provided with electric equipment on the base plate,
An opening is formed in the back wall, and the support member includes a rod-shaped portion having a screw portion formed on the outer periphery, and a head having a larger diameter than the rod-shaped portion at one end of the rod-shaped portion. The rod-shaped portion of the support member is inserted into the opening from the back surface side, and the support member is connected to the back wall in a state where the head is pressed against a region near the back surface side of the opening. The base plate is supported by a nut that is screwed into the screw portion in a state where the support member is fixed to the back wall by the fixing mechanism.

According to this configuration, the support member can be fixed to the back wall by the fixing mechanism by inserting the rod-shaped portion into the opening. Therefore, by providing a plurality of support members with respect to the back wall, it is different without using large parts. A size base plate can also be supported. Further, the distance (interval) between the back wall and the base plate can be adjusted by adjusting the position of the nut, and the arrangement space of the electric wire between the back wall and the base plate can be set as necessary.
Therefore, the electrical equipment accommodation case which can support the base board of a different size was suppressed, suppressing the enlargement of a supporting member and suppressing the increase in a number of parts.

  The present invention has a first bulging portion protruding in the direction of the internal space with a first setting width, and protruding in the direction of the internal space with a width narrower than the first setting width with respect to the first bulging portion. A second bulge portion is formed on the back wall, the opening is formed in the second bulge portion, and the first bulge portion is formed, whereby the back wall of the back wall is An accommodation space into which the head portion of the support member is fitted is formed, the opening width of the opening is set to a value with which the screw portion of the rod-shaped portion is screwed, and the screw portion is screwed into the opening. The head is pressed against the back side of the first bulging portion in a state where the head is fitted into the housing space by displacing the support member in the direction of the internal space by rotating the support member. As described above, the fixing mechanism may include the opening and the screw portion.

  According to this, the screw portion of the rod-shaped portion of the support member is screwed into the opening and the support member is rotated, so that the head bulges in a state where the head of the support member is fitted in the accommodation space. In this pressure contact state, the support member is supported by the back wall. Further, when the support member is displaced in the direction of the internal space, the second bulging portion is acted on by a compressive force that displaces the second bulging portion toward the back wall. Is stably deformed, and the state in which the head is pressed against the back side of the first bulging portion by the urging force resulting from the elastic deformation is continued and stable support is realized. That is, since it is not necessary to provide a screw hole or the like in the back wall in order to fix the support member to the back wall, the configuration can be simplified. Further, when the support member is supported on the back wall, the head does not protrude, and the support member can be stably supported using the elastic deformation of the second bulge portion.

  In the present invention, the first bulging portion and the second bulging portion may be formed in a linear shape, and a slit may be formed as the opening with respect to the second bulging portion.

  According to this, since the support member can be inserted and supported at an arbitrary position of the slit, the support member can be supported at a position corresponding to the size of the base plate to support the base plate.

  According to the present invention, the opening is a linear portion where the rod-shaped portion of the support member cannot be inserted, and a hole through which the rod-shaped portion of the support member can be inserted into the linear portion. The support member forms a small-diameter portion that can be inserted into the linear portion in the middle of the rod-shaped portion, and a boundary between the small-diameter portion and the rod-shaped portion. In a state where an inclined surface having a posture inclined with respect to the axis of the rod-shaped portion is formed on the opposite side of the head among the positions, and the small-diameter portion of the support member is disposed in the linear portion. By rotating the support member, the inclined surface is brought into contact with a region in the vicinity of the front surface of the slit, and the support member is displaced in the direction of the internal space so that the head is pressed against the back surface side of the back wall. As shown in FIG. It may be configured with the Jo portion and said inclined surface.

  According to this, after inserting the rod-shaped portion of the support member into the hole-shaped portion of the slit, the inclined surface is a region near the surface side of the slit by moving the small-diameter portion to the linear-shaped portion and rotating the rod-shaped portion. The support member is displaced in the direction of the internal space in contact with the head, and the head of the support member is pressed against the back side of the back wall. That is, the support member can be fixed using the inclined surface without using a dedicated member for fixing the support member to the back wall, and the configuration can be simplified.

  The present invention has a first bulging portion protruding in the direction of the internal space with a first setting width, and protruding in the direction of the internal space with a width narrower than the first setting width with respect to the first bulging portion. A second bulging portion is formed on the back wall, the slit is formed in the second bulging portion, and the first bulging portion is formed, whereby the back side of the back wall is formed. An accommodation space into which the head of the support member fits may be formed.

  According to this, by rotating the support member, the head is pressed against the back side of the first bulging portion in a state where the head of the support member is fitted in the accommodation space. Is supported by the back wall. In addition, when the support member is displaced into the internal space, a compressive force that displaces the second bulge portion toward the back wall acts on the second bulge portion, so that the second bulge portion is elastic. The state where the head is pressed against the back surface side of the first bulging portion by the urging force resulting from the elastic deformation is continuously realized to realize stable support. That is, since it is not necessary to provide a screw hole or the like in the back wall in order to fix the support member to the back wall, the configuration can be simplified. Further, when the support member is supported on the back wall, the head does not protrude, and the support member can be stably supported using the elastic deformation of the second bulge portion.

It is a perspective view which shows the whole distribution board. It is a disassembled perspective view of a distribution board. It is a perspective view of a holder. It is a perspective view which shows a back wall, a fixing | fixed part, and a supporting member. It is the VV sectional view taken on the line of FIG. It is a vertical side view which shows the state which fixed the supporting member to the fixing | fixed part. It is the VII-VII sectional view taken on the line of FIG. It is a perspective view which shows the back wall of another embodiment (a), a fixing | fixed part, and a supporting member. It is a perspective view which shows the supporting member of another embodiment (a). (A) is a longitudinal side view of the state in which the support member is set to the fixing part in another embodiment (a), (b) is a cross-sectional view taken along line Xb-Xb of FIG. 10 (a), and (c) is FIG. Is a cross-sectional view taken along line Xc-Xc. (A) is a longitudinal side view of a state in which the support member is fixed to the fixing portion in another embodiment (a), (b) is a cross-sectional view taken along the line XIb-XIb in FIG. 11 (a), and (c) is FIG. ) Is a cross-sectional view taken along line XIc-XIc.

Embodiments of the present invention will be described below with reference to the drawings.
[Basic configuration]
As shown in FIGS. 1 and 2, the casing A is configured by forming the back wall 1, the left and right side walls 2, the upper wall 3 on the upper side, and the lower wall 4 on the lower side with a metal material such as a steel plate. In addition, a lid 5 that closes the front opening of the casing A is swingably opened and closed, and a wooden base plate B is provided in the internal space of the casing A. The base plate B includes a plurality of electric devices. A distribution board as an example of an electrical equipment housing case is provided. The left and right side walls 2, the upper wall 3 on the upper side, and the bottom wall 4 on the lower side are formed so as to stand up from the back wall 1 at a position that surrounds the back wall 1, and a box-shaped internal space is formed in a part surrounded by these. It is formed.

  This distribution board is assumed to be provided in a general household to which single-phase three-wire power is supplied. In the internal space, the above-described base plate B includes the first base plate B1 and the second base plate B2. The first base plate B1 is provided with a main breaker 6 and a plurality of branch breakers 7 as electric devices, and the second base plate B2 is provided with a plurality of branch breakers 7 as electric devices.

  In this embodiment, a distribution board is shown as an electrical equipment housing case, but the electrical equipment housing case of the present invention is not intended for housing only electrical equipment that performs power distribution, but a router connected to the Internet. Electrical communication equipment such as LAN switches or optical connectors is also included.

  In the housing A, an opening 3A is formed in the upper wall 3, and a holder H shown in FIG. 3 is provided in the opening 3A. Three power lines 10 are held by pressure against the holder H. The holder H has an opening / closing member 12 that is swingably opened and closed about the shaft body 11, and the opposing surfaces of the pair of opening / closing members 12 are insulatively and flexibly deformed like rubber or sponge. A clamping member 13 is formed, a recess 13A for sandwiching the power line 10 is formed in the clamping member 13, and a swinging end portion of each opening / closing member 12 is provided with a clamp 14 for holding the opening / closing member 12 in a closed posture, Each opening / closing member 12 includes a flange 12 </ b> A that fixes the holder H to a portion of the opening 3 </ b> A of the upper wall 3.

  The holder H may be used in a form in which the power line 10 is directly crimped. However, the power line 10 is inserted into the insulating tube 15 such as resin or ceramic shown in FIGS. 15 may be used in a form in which it is pressure-bonded by the pinching member 13. The power line 10 is held by connecting the flange 12 </ b> A of the opening / closing member 12 to the upper wall 3 in the crimped state as described above.

  As described above, the electrical device housing case of the present invention also accommodates information communication electrical devices. For example, when the electrical distribution device and the information communication electrical device are stored, the holder In addition to the power line 10, a control cable for controlling an electric device, a communication cable connected to an information communication electric device, or the like can be crimped and held against H.

[Support structure of base plate]
The distribution board as an electric equipment housing case fixes a support member 20 to a plurality of fixing portions E formed in a vertically long posture on the back wall 1 by a fixing mechanism G, and the first base with respect to the support member 20 The plate B1 and the second base plate B2 are supported, and the support form by the support member 20 will be described below.

  As shown in FIGS. 4 to 7, the fixing portion E has a first bulging portion E1 that protrudes in the direction of the internal space from the back wall 1 in a straight shape with a first setting width W1 in a vertical orientation, and the first bulging portion E1. A second bulging portion E2 that protrudes linearly in the direction of the internal space with a second setting width W2 that is narrower than the first setting width W1 with respect to the protruding portion E1, and is linear with respect to the second bulging portion E2. The slit ES (an example of an opening) is formed. The first bulging portion E1, the second bulging portion E2, and the slit ES are integrally formed with the back wall 1 by pressing the back wall 1.

  The support member 20 includes a rod-shaped portion 21 having a threaded portion 21S formed on the outer periphery and centering on the axis X, and a head 22 having a larger diameter than the rod-shaped portion 21 at one end of the rod-shaped portion 21. Is made of a metal material such as steel. The head 22 is formed with a groove 22A for rotating the support member 20 about the axis X with a tool such as a screwdriver.

  The slit width WS of the slit ES is set to be narrower than the outer diameter (the outer diameter of the thread) of the screw portion 21S of the support member 20 and wider than the diameter of the valley of the screw portion 21S. Moreover, the groove width formed in the back surface side of the back wall 1 by the 1st bulging part E1 is set to the dimension in which the head part 22 of the support member 20 fits, and the back surface side of the back wall 1 by the 2nd bulging part E2. The width of the groove formed is set to be shorter than the diameter of the head 22. With this configuration, an accommodation space in which the head is fitted into the first bulging portion E1 is formed.

  The fixing mechanism G described above includes a screw portion 21S, a slit ES (an example of an opening), a head portion 22, and an intermediate wall 1A. When the support member 20 is fixed to the back wall 1 by the fixing mechanism G, the screw portion 21S of the rod-shaped portion 21 is screwed into the slit ES, and the support member 20 is rotated in the direction of the internal space by rotating the head portion 22. Displace to As a result of this displacement, as shown in FIGS. 6 and 7, the head 22 is fitted into the accommodating space inside the first bulging portion E1, and between the first bulging portion E1 and the second bulging portion E2. The pressure contact surface on the rod-like portion side of the head 22 comes into pressure contact with the intermediate wall 1A (a specific example of the vicinity region on the back surface side of the opening / the back surface side of the first bulge portion E1).

  Thus, in the state in which the head portion 22 is pressed against the intermediate wall 1A, the second bulging portion E2 existing between the slit ES into which the screw portion 21S is screwed and the intermediate wall 1A to which the head portion 22 is pressed is elastically elastic. In order to maintain the force that draws the support member 20 in the direction of the internal space from this elastic deformation, the state in which the head 22 is pressed against the intermediate wall 1A is also maintained. It is stably fixed to the wall 1.

  The horizontal width of the first base plate B1 and the second base plate B2 is set to be slightly wider than the interval between the fixing portions E arranged on the left and right, and the vertical width of the first base plate B1 and the second base plate B2 is The dimension is set according to the size of the electrical device, and a through hole Bh is formed at the corner between the first base plate B1 and the second base plate B2.

[Assembly of distribution board]
When assembling the distribution board from such a configuration, the rod-shaped portion 21 of the support member 20 is inserted into a required position in the vertical direction of the slit ES of the fixed portion E, and the head portion 22 is rotated. By this operation, the support member 20 is displaced in the direction of the internal space, and the support member 20 is fixed to the back wall 1 by the head 22 being pressed against the intermediate wall 1A. The first base plate B1 and the second base plate B2 are arranged so that the rod-shaped portion 21 is inserted into the through hole Bh after the plurality of support members 20 are fixed in a standing state at positions required by such an operation. Are fastened in such a manner that the first base plate B1, the second base plate B2, and the plate B are sandwiched by the nuts 23 that are screwed into the screw portions 21S of the rod-like portion 21. As a result, the base plate B is supported in a posture parallel to the back wall 1.

  After the base plate B is supported in the internal space in this way, necessary wiring is performed for the main breaker 6 and the plurality of branch breakers 7, and the holder H is attached to the casing A to complete the assembly of the distribution board. To do. In this distribution board, when the base plate B is supported, electrical devices such as the main breaker 6 and the plurality of branch breakers 7 are mounted on the base plate B in advance to support the base plate B. Although the wiring work to be performed can be simplified and the assembly can be performed efficiently, the electric equipment may be attached to the base plate B after the base plate B is supported.

[Operation / Effect of Embodiment]
As described above, the fixing mechanism G includes the slit ES that is linear, and the support member 20 includes the screw portion 21S that can be screwed into the slit ES. It can be fixed in such a position. Moreover, in this fixing mechanism G, since the screw hole for screwing the screw part 21S is not required, it is not necessary to form a screw hole and it is not necessary to provide a nut. In particular, in the present invention, the base plate B is formed at an arbitrary position in the internal space of the housing A by forming the plurality of slits ES in a parallel posture or by setting the plurality of slits ES in a posture extending in the lateral direction. Can be supported by the support member 20 in a state of being disposed, and the distribution of electrical equipment for power distribution such as a breaker or electrical equipment for information communication such as a router can be flexibly performed.

  Moreover, since it is the structure which supports the base board B with the nut 23 screwed together by the screw part 21S of the rod-shaped part 21 of the support member 20, the space | interval of the back wall 1 and the base board B is set according to the size of an electric equipment. Arbitrary setting is possible, and when this interval is widened, wiring can be easily performed.

  In the present invention, it is possible to support a plurality of base plates B having a relatively small size in the internal space. When the plurality of base plates B are supported in this way, the interval between the adjacent base plates B is increased. Widening makes wiring easy.

[Another embodiment]
In addition to the above-described embodiment, the present invention may be configured as follows (in this other embodiment, the same function as that of the above-described embodiment is denoted by the same reference numerals and symbols as those of the above-described embodiment). )

(A) As shown in FIGS. 8 to 11, similarly to the above-described embodiment, the first bulging portion E1 and the second bulging portion E2 are formed on the back wall 1 as the fixing portion E, and the second bulging portion is formed. A slit ES (an example of an opening) is formed in the protruding portion E2. The slit ES allows a linear portion ES1 having an interval (gap) where the rod-shaped portion 21 of the support member 20 cannot be inserted, and the rod-shaped portion 21 of the support member 20 can be inserted into the linear portion ES1. A hole portion ES2 is partially provided.

  The support member 20 is formed with a small-diameter portion 21N having an outer diameter that can be inserted into the linear portion ES1 described above at an intermediate portion of the rod-shaped portion 21, and among the boundary positions between the small-diameter portion 21N and the rod-shaped portion 21. A pair of inclined surfaces 21 </ b> T that are inclined with respect to the axis X are formed on the opposite side (front end side) of the head 22.

  In this other embodiment (a), the fixing mechanism G includes a pair of inclined surfaces 21T, a straight portion ES1 of a slit ES (an example of an opening), a head portion 22, and an intermediate wall 1A. Yes. When the support member 20 is fixed to the back wall 1 by the fixing mechanism G, the rod-shaped portion 21 is inserted into the hole-shaped portion ES2 of the slit ES, and the small-diameter portion 21N of the rod-shaped portion 21 is linearly formed to the slit ES. The head portion 22 is moved to a required position, and the head portion 22 is rotated. By performing this rotation operation, the inclined surface 21T of the rod-shaped portion 21 enters a state where it rides on the outer surface of the linear portion ES1 of the slit ES, and the support member 20 is displaced toward the internal space by this riding.

  Due to this displacement, the head 22 is fitted into the accommodation space inside the first bulging portion E1, and the intermediate wall 1A (on the back side of the opening) between the first bulging portion E1 and the second bulging portion E2. The pressure contact surface on the rod-shaped portion side of the head 22 comes into pressure contact with the specific example of the vicinity region (the back surface side of the first bulge portion E1). Thus, the support member 20 is fixed to the back wall 1 by the head portion 22 being pressed against the intermediate wall 1A. After fixing the support member 20 to the back wall 1 by this operation, the base plate B can be supported by screwing the nut 23 into the screw portion 21S of the rod-like portion 21.

  In this way, by configuring the fixing mechanism G, an operation of fixing the support member 20 to the back wall 1 by reducing the amount of rotation operation of the support member 20 can be realized in a short time.

(B) A plurality of fixing portions E are formed in a parallel posture with respect to the back wall 1. Even when a large number of fixing portions E are formed in this way, the back wall 1 can be pressed, so that the manufacturing process is not increased, and the supporting members 20 are fixed by forming a large number of fixing portions E. It is also possible to expand the region and support the base plate B at an arbitrary position.

(C) The fixing portion E is formed by combining the slit ES with the longitudinal direction going up and down and the slit ES going in the left and right direction. By comprising in this way, it becomes possible to expand the area | region which fixes the supporting member 20, and to support the base board B in arbitrary positions.

(D) A plurality of circular through holes may be formed in the back wall 1 as openings. Specifically, a first bulging portion E1 having a first setting width (first setting diameter) W1 and a second bulging portion E2 having a second setting width (second setting diameter) W2 are formed on the back wall 1. And the through-hole which becomes circular with respect to this 2nd bulging part E2 is formed. As described above, in the configuration in which a plurality of through holes are formed, the support member 20 can be inserted and fixed to a necessary one of the plurality of through holes, and base plates B of various sizes can be used.

  INDUSTRIAL APPLICABILITY The present invention can be used for an electric equipment housing case configured to support an electric mechanism on a base plate.

1 Back wall 2 Side wall 6 Electrical equipment (main breaker)
7 Electrical equipment (branch breaker)
20 Support member 21 Rod-shaped portion 21S Screw portion 21N Small-diameter portion 21T Inclined surface 22 Head 23 Nut B Base plate E1 First bulge portion E2 Second bulge portion ES Opening / slit ES1 Linear portion ES2 Hole-shaped portion G Fixed Mechanism W1 First setting width W2 Second setting width WS Slit width (slit width)

Claims (5)

An internal space is formed by a vertical wall-like back wall and a side wall standing up from the outer periphery of the back wall, and a base plate is supported on the back wall via a support member in the internal space. An electrical equipment storage case equipped with electrical equipment,
An opening is formed in the back wall;
The support member includes a rod-shaped portion having a threaded portion formed on the outer periphery, and a head having a larger diameter than the rod-shaped portion at one end of the rod-shaped portion,
A fixing mechanism that inserts the rod-shaped portion of the support member into the opening from the back surface side, and fixes the support member to the back wall in a state where the head is pressed against a region near the back surface side of the opening. And the base plate is supported by a nut that is screwed into the screw portion in a state where the support member is fixed to the back wall by the fixing mechanism. A first bulge projecting in the direction of the internal space with a first set width, and a second bulge projecting in the direction of the internal space with a width narrower than the first set width with respect to the first bulge Part is formed in the back wall, the opening is formed in the second bulge part,
By forming the first bulging portion, an accommodation space in which the head portion of the support member is fitted on the back surface side of the back wall is formed,
The opening width of the opening is set to a value with which the screw portion of the rod-shaped portion is screwed,
By screwing the screw part into the opening and rotating the support member to displace the support member in the direction of the internal space, the head is fitted into the accommodation space. The electric device housing case according to claim 1, wherein the fixing mechanism includes the opening and the screw portion so as to be pressed against the back surface side of the first bulging portion.   The electric device housing case according to claim 2, wherein the first bulging portion and the second bulging portion are formed in a linear shape, and a slit is formed as the opening with respect to the second bulging portion. The opening has a linear portion that is an interval at which the rod-shaped portion of the support member cannot be inserted, and a hole-shaped portion that allows the rod-shaped portion of the support member to be inserted into the linear portion. Formed as a specially prepared slit,
The support member forms a small-diameter portion that can be inserted into the linear portion in the middle of the rod-shaped portion, and the rod-shaped portion on the opposite side of the head from the boundary position between the small-diameter portion and the rod-shaped portion. Formed with an inclined surface inclined to the axis of the part,
With the small-diameter portion of the support member arranged in the linear portion, the support member is moved in the direction of the internal space by bringing the inclined surface into contact with a region near the surface side of the slit by rotating the support member. The electrical equipment housing according to claim 1, wherein the fixing mechanism includes a linear portion of the slit and the inclined surface so that the head is pressed against the back side of the back wall by being displaced. Case. A first bulge projecting in the direction of the internal space with a first set width, and a second bulge projecting in the direction of the internal space with a width narrower than the first set width with respect to the first bulge Part is formed on the back wall, and the slit is formed on the second bulge part,
The electric device storage case according to claim 4, wherein a storage space into which the head portion of the support member fits is formed on the back surface side of the back wall by forming the first bulge portion.

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