阅读说明：本技术 配电盘壳体 (Distribution board case ) 是由 服部太辅 大庭进一 于 2018-12-20 设计创作，主要内容包括：本发明提供一种配电盘壳体,即使在露出地设置壳体的情况下也能够使用在埋设规格的壳体侧面设置的电线进出部。该配电盘壳体具有：壳体主体(2),其具有背板(21)以及将背板(21)的周围四边包围的侧面板(22)、并且该壳体主体(2)的前表面开放；前面板(3),其将壳体主体(2)的前表面封闭；以及覆盖框(4),其将侧面板(22)的整体覆盖,侧面板(22)在至少一个侧面板设置有敲落孔(24),该敲落孔(24)能够形成用于供电线进出的孔,在覆盖框(4)的与敲落孔(24)对应的部位形成有容易切除的减薄部(43)。(The invention provides a distribution board casing, which can use an electric wire inlet and outlet part arranged on the side surface of the casing with embedded specification even if the casing is arranged in an exposed way. The distribution board casing has: a case body (2) which has a back plate (21) and side panels (22) that surround the four peripheral sides of the back plate (21), and in which the front surface of the case body (2) is open; a front panel (3) that closes the front surface of the housing main body (2); and a cover frame (4) which covers the whole side panel (22), wherein the side panel (22) is provided with a knock-out hole (24) on at least one side panel, the knock-out hole (24) can form a hole for the power supply line to enter and exit, and a thinning part (43) which is easy to cut off is formed on the cover frame (4) corresponding to the knock-out hole (24).)

1. An electrical distribution board cabinet having a cabinet main body and a front panel, wherein the cabinet main body has a back plate and side panels surrounding four sides of the back plate, and the front surface of the cabinet main body is open, the front panel closes the front surface of the cabinet main body, and the electrical equipment can be accommodated in the electrical distribution board cabinet,

the electrical panel cabinet is characterized in that it comprises,

a cover frame for covering the whole side panels, wherein at least one of the side panels is provided with a knock-out hole capable of forming a hole for the entrance and exit of a power supply line,

a thinned portion in which an opening is easily formed is formed in a portion of the cover frame corresponding to the knock-out hole.

2. The panelboard of claim 1, wherein,

the outer contour of the front panel is larger than the outer contour of the case main body with a step therebetween, on the other hand, the cover frame has a size in conformity with the outer contour of the front panel,

the step is eliminated by the cover frame that covers the side panel.

3. The panelboard of claim 1 or 2, wherein,

the cover frame has a coupling portion coupled to the front panel, and is disposed and fixed around the housing main body in a state of being coupled to the front panel.

4. The panelboard of any of claims 1 to 3,

the cover frame is divided for each side panel of the housing main body and is formed of four members.

Technical Field

The present invention relates to a cabinet of a distribution board for housing electrical equipment such as a circuit breaker or information terminal equipment, and more particularly to a cabinet of a distribution board that can be installed in both a buried manner in a wall surface and an exposed manner from the wall surface.

Background

In a cabinet for housing a distribution board such as a circuit breaker, there are a structure in which a main part of the cabinet is embedded in a wall surface and a structure in which the entire cabinet is exposed from the wall surface without being embedded in the wall surface. Therefore, a housing capable of coping with these two arrangements has been proposed.

For example, in the distribution board case of patent document 1, a step portion (step portion) is provided around the case, the back portion is formed to be one step smaller, and the step portion enables the rear portion to be buried in the wall surface. On the other hand, in a case where the entire case is exposed so as not to be embedded, a cover frame (cover member) formed to cover the case rear portion by one turn and eliminate the step portion is attached around the case.

Disclosure of Invention

Problems to be solved by the invention

In the structure in which the cover frame is attached to the case, when the cover frame is provided so as to be exposed, dust is less likely to accumulate in the step portion, and the exposed embedded portion is hidden.

However, since the cover frame covering the periphery of the case is formed to have the same width without generating a gap, if a hole for passing in and out the power supply line or a knock-out hole capable of forming a hole is provided in a portion embedded in the side surface of the case, the hole or the knock-out hole becomes unusable.

Further, since the embedded portion is provided with the step portion in the middle of the case, it is difficult to attach and detach the cover frame due to the step portion in a state where the case is attached to the wall surface.

In view of the above-described problems, an object of the present invention is to provide a distribution board casing in which a wire insertion portion provided on a side surface of a casing of an embedded specification can be used even when the casing is exposed, and a cover frame covering an embedded portion of the casing can be easily attached and detached.

Means for solving the problems

In order to solve the above-described problems, the invention according to claim 1 is a distribution board cabinet including a cabinet main body and a front panel, the cabinet main body including a back plate and side panels surrounding four sides of the back plate, and a front surface of the cabinet main body being open, the front panel closing the front surface of the cabinet main body, the distribution board cabinet being capable of accommodating electric devices therein, the distribution board cabinet including a cover frame covering the entire side panels, at least one of the side panels being provided with a knock-out hole capable of forming a hole for allowing a power supply line to enter and exit, the cover frame being provided with a thinned portion at a position corresponding to the knock-out hole, the thinned portion facilitating formation of an opening portion.

According to this configuration, even if the case main body is covered with the cover frame, the thinned portion is provided at the position of the cover frame matching the knock-out hole of the case main body, and therefore, even if the cover frame is attached, the electric wire can be inserted into and removed from the knock-out hole. Further, since the case main body is covered with the cover frame, the case main body is preferably exposed from the wall surface in terms of appearance.

The invention according to claim 2 is characterized in that, in addition to the configuration described in claim 1, the outer contour of the front panel is larger than the outer contour of the casing main body, and a step portion is provided between the front panel and the outer contour, and the cover frame has a size corresponding to the outer contour of the front panel, and the step portion is eliminated by the cover frame covering the side panel.

According to this configuration, since the outer contour of the front panel is larger than the outer contour of the case main body, the gap between the case main body and the wall surface can be closed by the assembled front panel by simply removing the cover frame and embedding the case main body in the wall surface, and no other closing member is required.

Further, since the cover frame has a size that matches the outer contour of the front panel, the cover frame can be attached and detached only by detaching the front panel, and when the cover frame is used so as to expose the housing main body, the cover frame can be attached so that the step portion between the front panel and the housing main body is eliminated and the cover frame can be formed into a smooth shape, which is desirable in terms of appearance.

The invention according to claim 3 is characterized in that, in addition to the configuration according to claim 1 or 2, the cover frame has a connection portion connected to the front panel, and is disposed and fixed around the case main body in a state of being connected to the front panel.

According to this configuration, the attachment of the cover frame can be completed only by the operation of attaching the cover frame to the front panel, and the attachment can be performed with a simple operation.

The invention according to claim 4 is characterized in that, in addition to the structure according to any one of claims 1 to 3, the cover frame is formed so as to be divided for each side panel of the case main body and is composed of four members.

According to this configuration, since the detached cover frame can be divided into four pieces, space can be saved during storage.

Effects of the invention

According to the present invention, even if the case body is covered with the cover frame, the cover frame is provided with the thinned portion at a position matching the knock-out hole of the case body, and therefore, even if the cover frame is attached, the electric wire can be inserted into and removed from the knock-out hole. Further, since the case main body is covered with the cover frame, the case main body is preferably exposed from the wall surface in terms of appearance.

Drawings

Fig. 1 is a perspective view showing an example of a distribution board casing according to the present invention.

Fig. 2 is an explanatory diagram for explaining the case main body in a separated state.

Fig. 3 is an explanatory view showing a relationship between the front panel and the cover frame, and is an exploded perspective view as viewed from the rear.

Fig. 4 is a perspective explanatory view seen from the rear side showing a step of attaching the cover frame to the front panel, fig. 4 (a) is an explanatory view of attaching the vertical divided piece, fig. 4 (b) is an explanatory view of attaching the horizontal divided piece, and fig. 4 (c) is an explanatory view of a state where the attachment is completed.

Fig. 5 is a perspective view of the distribution board casing with the cover frame removed.

Description of the reference numerals

1: a distribution board case; 2: a housing main body; 3: a front panel; 4: covering the frame; 4 a: longitudinally dividing the sheet; 4 b: transversely dividing the slices; 21: a back plate; 22: a side panel; 24: knocking off the hole; 33: a groove; 41: an insertion piece (connection portion); 42(42a, 42 b): a fastening part; 43: a thinning portion; b: a step portion.

Detailed Description

Hereinafter, embodiments embodying the present invention will be described in detail with reference to the drawings. Fig. 1 and 2 show an example of a distribution board cabinet according to the present invention, fig. 1 is a perspective view, and fig. 2 shows a state in which a distribution board cabinet main body is separated. The switchboard cabinet 1 comprises: a box-shaped case body 2 having an opening on the front surface side; a front panel 3 that closes the front surface of the housing main body 2; and a cover frame 4 covering the periphery of the case main body 2.

The case body 2 is formed by bending a steel plate, and the case body 2 has a back plate 21 and a side plate 22 formed by four surfaces of a left side surface 22a, a right side surface 22b, a top surface 22c, and a bottom surface 22d covering the periphery of the back plate, and the case body 2 is formed firmly and can be embedded in a wall surface. The back plate 21 is provided with mounting fittings 21a for mounting electrical equipment such as a branch circuit breaker, and the back plate 21 is provided at four corners thereof with screw insertion holes (not shown) for mounting the case body 2 on a wall surface or a wall surface.

A plurality of knock-out holes 24 are formed in the top surface 22c and the bottom surface 22d of the side plate 22, and the knock-out holes 24 are used to form holes for inserting and withdrawing an electric wire, not shown, and the holes can be easily formed by punching as necessary.

Moreover, tongue pieces 25 for attaching the front panel 3 are formed by bending inward the center front surfaces of the left and right side plates 22a, 22b, and screw holes 25a for coupling the front panel 3 are formed in the tongue pieces 25.

The front panel 3 and the cover frame 4 are made of synthetic resin, and the front panel 3 has a window portion 35 formed in a central opening thereof, through which an operation handle of a stored branch circuit breaker or the like is exposed, and has a window plate 32 openably and closably attached thereto for closing the window portion 35. Further, screw insertion holes 34 are provided in the left and right sides of the window portion 35 closed by the window plate 32 at positions corresponding to the screw holes 25a of the housing main body 2. Fig. 1 shows a state in which the window plate 32 is open, and fig. 2 shows a state in which the window plate 32 is closed.

Fig. 3 is an explanatory view of the front panel 3 and the cover frame 4, and is an exploded perspective view as viewed from the rear. As shown in fig. 3, the cover frame 4 is divided into four pieces for each side surface plate 22 of the case main body 2. Further, the structure is: the cover frame 4 can also be attached to the case body 2 by attaching the front panel 3 to the case body 2, with the connection portion connected to the front panel 3. The following is a detailed description.

The periphery of the front panel 3 is bent rearward to form a skirt 31 having the same thickness in the back direction. The skirt portion 31 is formed in a double structure, and a slit-like groove 33 for assembling the cover frame 4 is formed in the middle thereof, and the groove 33 is provided in a surrounding manner.

On the other hand, the cover frame 4 is divided into four parts corresponding to the respective surfaces of the side panels 22 of the case body 2. The cover frame 4 is formed of two members including two vertical divided pieces 4a corresponding to the left and right side surfaces 22a, 22b of the side panel 22 and two horizontal divided pieces 4b corresponding to the top surface 22c and the bottom surface 22d, the vertical divided pieces 4a disposed on the left and right sides being members having the same shape, and the horizontal divided pieces 4b disposed on the upper and lower sides being members having the same shape.

Tongue-shaped insertion pieces 41 inserted into the grooves 33 are provided in the divided pieces 4a and 4b so as to protrude, and the front panel 3 is coupled by inserting the insertion pieces 41 into the grooves 33.

The cover frame 4 is used when the case body 2 is exposed to the wall surface without being embedded in the wall surface, and the cover frame 4 is removed without using the cover frame 4 when the case body 2 is embedded.

The vertical segment 4a and the horizontal segment 4b are formed with engaging portions 42(42a, 42b) so that no gap is formed between the adjacent segments. The engaging portion 42a of the vertical segment 4a is provided with a clamping piece into which the engaging portion 42b of the horizontal segment 4b is inserted to clamp the engaging portion 42b, and the engaging portion 42b of the horizontal segment 42b is provided with a band piece into which the clamping piece is inserted.

Further, a thinned portion 43 is formed in a portion of the lateral dividing piece 4b corresponding to the knock-out hole 24 formed in the case body 2 so as to match the position of the knock-out hole 24. The notch (opening portion) communicating with the knockout hole 24 is easily formed by forming the thinned portion 43.

On the other hand, the front panel 3 is formed to have an outer contour larger than that of the case main body 2 and is formed to accommodate the case main body 2 inside the skirt 31. Fig. 5 is a perspective view of the switchboard cabinet after the cover frame 4 is removed, and as shown in fig. 5, the front panel 3 is formed to be one step larger than the cabinet main body 2, and a step portion B is formed around the periphery when the connection is made. By providing the step portion B in this way, when the case body 2 is buried in the wall surface, the gap with the wall surface, which is generated around, can be hidden by the front panel 3.

Further, by attaching the front panel 3 to which the cover frame 4 is attached to the case body 2, the step portion B between the front panel 3 and the case body 2 can be hidden to form a uniform side surface without a step portion.

Fig. 4 is a perspective explanatory view seen from the rear showing a step of attaching the cover frame 4 to the front panel 3, fig. 4 (a) shows an explanatory view of attaching the vertical divided piece 4a, fig. 4 (b) shows an explanatory view of attaching the horizontal divided piece 4b, and fig. 4 (c) shows an explanatory view of a state where the attachment is completed. The following flow is shown in fig. 4: first, the left and right longitudinal divided pieces 4a are attached to the front panel 3, and then the lateral divided pieces 4b are attached. In this case, when the lateral divided piece 4b is attached, the engaging portion 42b of the lateral divided piece is inserted into the engaging portion 42a of the vertical divided piece 4a and is slid to be coupled to the front panel 3. The insertion piece 41 is inserted into the groove 33 to connect the divided pieces 4a and 4 b.

By forming the engaging portion 42 by providing an overlapping portion at the contact portion between the divided pieces 4a and 4b in this manner, the divided pieces 4a and 4b are connected and integrated with each other while preventing the occurrence of a gap.

The order of attachment may be reversed, and the horizontal segment 4b may be attached to the front panel 3 first, and then the vertical segment 4a may be connected to the front panel 3 by sliding in a state where the engaging portions 42 are aligned with each other.

The front panel 3 formed in a cover shape with the cover frame 4 attached thereto is attached to the case main body 2 so as to be externally inserted from the front, whereby the cover frame 4 is disposed so as to cover the side panels 22 of the case main body 2. Then, by fastening screws through the screw insertion holes 34 provided on the left and right sides of the front panel 3, the front panel 3 can be fixed to the case body 2, and the cover frame 4 can also be positioned and fixed.

In this way, even if the case body 2 is covered with the cover frame 4, the thinning portion 43 is provided at the position of the cover frame 4 matching the knock-out hole 24 of the case body 2, and therefore, even if the cover frame 4 is attached, the electric wire can be inserted into and removed from the knock-out hole 24. Further, since the case body 2 is covered with the cover frame 4, the case body 2 is preferably exposed from the wall surface in terms of appearance.

Further, since the outer contour of the front panel 3 is larger than the outer contour of the case body 2, the gap between the case body 2 and the wall surface can be closed by the attached front panel 3 by simply removing the cover frame 4 and embedding the case body 2 in the wall surface, and no other closing member is necessary.

Further, since the cover frame 4 has a size that matches the outer contour of the front panel 3, the cover frame 4 can be attached and detached only by detaching the front panel 3, and when the case body 2 is used so as to be exposed, the cover frame 4 can be attached so that the step between the front panel 3 and the case body 2 is eliminated and the case body 2 can be formed into a smooth shape, which is desirable in terms of appearance.

In addition, since the cover frame 4 can be attached only by the operation of inserting the cover frame into the front panel 3, the cover frame can be attached by a simple operation without the need of fastening screws or the like, and the detached cover frame 4 can be divided into four pieces, space can be saved during storage.

In the above embodiment, the knock-out holes 24 are provided in the top surface 22c and the bottom surface 22d of the housing body 2, but may be provided in the side surfaces 22a and 22b, and in this case, the thinned portions are formed in the corresponding vertical split pieces 4 a. The case body 2 is not limited to being made of metal, and may be made of synthetic resin.

Industrial applicability of the invention

The above embodiments have been described mainly with respect to a distribution board housing breakers for forming branch circuits, but may also be applied to an information distribution board housing information equipment.