Covers for mounted electrical equipment and mounted electrical equipment

Abstract

To provide a mounting-type electric device cover and a mounting-type electric device in which a liquid having intruded into the inside can be drained while degradation of a gas proofing effect and a dust proofing effect is suppressed.SOLUTION: A mounting-type electric device cover 30 houses a mounting fitting 50 for mounting an electric device 20 to be mounted via a first through hole 11 formed in a building material, and is placed so as to close the first through hole 11. In addition, in the mounting-type electric device cover 30, a second through hole 35 is formed in at least either a bottom wall 31 facing a cover opening portion 30a or a side wall 32 standing from the bottom wall 31 toward the cover opening portion 30a and constituting the cover opening portion 30a. Further, the mounting-type electric device cover 30 has flexibility such that the mounting-type electric device cover 30 can house the mounting fitting 50 before and after the mounting fitting 50 comes into contact with the building material.SELECTED DRAWING: Figure 2

Description

【Technical Field】 【0001】 The present disclosure relates to a cover for a mounted electrical device and a mounted electrical device. 【Background Art】 【0002】 Patent Document 1 discloses a fire-resistant cover used as a conventional cover for a mounted electrical device. 【0003】 The fire-resistant cover includes a cover body formed in a bottomed box shape having a bottom wall and side walls made of a fire-resistant material. The cover body has an opening that opens at the front facing the bottom wall, a housing portion for housing a wiring device fixture, a contact portion that extends along the outer periphery of the opening and contacts the back surface of the wall at the front, and a sandwiched portion that is sandwiched together with the wall material when the wiring device and the wiring device fixture are arranged in a through-hole of the wall material when the wiring device is fixed to the wiring device fixture. 【Prior Art Documents】 【Patent Documents】 【0004】 【Patent Document 1】 Japanese Unexamined Patent Application Publication No. 2020-129850 【Summary of the Invention】 【Problems to be Solved by the Invention】 【0005】 For example, when attaching a wiring device or the like to a wall material, the fire-resistant cover seals the through-hole of the wall material to suppress the inflow of toxic gases, smoke, etc. from the outside. However, when liquid unexpectedly intrudes, there is a problem that the liquid accumulates inside the fire-resistant cover, causing the wiring device to malfunction due to the liquid. 【0006】 Therefore, an object of the present disclosure is to provide a cover for a mounted electrical device and a mounted electrical device that can drain the liquid that has intruded inside while suppressing a decrease in the airtightness effect and the dustproof effect. 【Means for Solving the Problems】 【0007】 A cover for a mountable electrical appliance relating to one aspect of this disclosure is , made A mounting type electrical equipment cover is provided to house a mounting bracket for mounting electrical equipment which is attached through a first through-hole formed in a building material, and is installed so as to close the first through-hole, wherein the mounting bracket is movable so as to be able to contact the surface of the building material opposite to the exposed surface or the side wall surface of the building material which forms the first through-hole when attached to the building material and after attachment, a second through-hole is formed in at least one of the bottom wall facing the opening and the side wall which is erected from the bottom wall toward the opening and forms the opening, the mounting type electrical equipment cover is flexible so as to be able to house the mounting bracket in any state before or after the mounting bracket comes into contact with the building material, a plurality of grooves are formed in the side wall along the direction toward the opening from the bottom wall, and the bottom wall has a plurality of stepped portions which are formed so as to gradually decrease in diameter toward the center of the bottom wall from the side wall. Furthermore, a mountable electrical equipment cover according to one aspect of the present disclosure is a mountable electrical equipment cover that accommodates a mounting bracket for mounting electrical equipment to be mounted through a first through-hole formed in a building material, and is installed so as to close the first through-hole, wherein the mounting bracket is movable so as to be able to contact the surface of the building material opposite to the exposed surface or the side wall surface of the building material that forms the first through-hole when mounted to the building material and after mounting, the mountable electrical equipment cover has a second through-hole formed in at least one of a bottom wall facing the opening and a side wall that is erected from the bottom wall toward the opening and forms the opening, the mountable electrical equipment cover is flexible so as to be able to accommodate the mounting bracket in any state before or after the mounting bracket comes into contact with the building material, the side wall comprises a first side wall formed on the opening side and a second side wall formed on the bottom wall side, the second side wall is shorter from the central axis than the first side wall, and at least the first side wall has a plurality of grooves formed therein. 【0008】 Furthermore, a mountable electrical device according to one aspect of this disclosure comprises a cover for the mountable electrical device and a mounting bracket housed in the cover for the mountable electrical device. [Effects of the Invention] 【0009】 According to the cover for electrical equipment of this disclosure, it is possible to drain liquid that has entered the interior while suppressing a decrease in airtight and dustproof effects. [Brief explanation of the drawing] 【0010】 [Figure 1A] Figure 1A is a perspective view showing the appearance of a cover for mounted electrical equipment and mounted electrical equipment installed on building materials. [Figure 1B] Figure 1B is a perspective view showing the appearance of another mounted electrical equipment cover and mounted electrical equipment installed on a building material. [Figure 2] Figure 2 is a perspective view showing the external appearance of a mounting-type electrical equipment cover, electrical equipment, equipment housing, and mounting bracket according to an embodiment. [Figure 3A] Figure 3A is a perspective view showing the external appearance of a mounting-type electrical equipment cover with a second through-hole formed in the side wall. [Figure 3B] Figure 3B is a perspective view showing the external appearance of a mounting-type electrical equipment cover with a second through-hole formed in the bottom wall. [Figure 3C] Figure 3C is a perspective view showing the appearance of another mounting-type electrical equipment cover according to an embodiment. [Figure 4] Figure 4 shows the shape of the second through-hole in the cover for mounting-type electrical equipment according to the embodiment. [Figure 5] Figure 5 is a cross-sectional view showing the cover, equipment housing, and mounting bracket for a mounted electrical equipment on a VV line as shown in Figure 2. [Figure 6A] Figure 6A is a cross-sectional view showing the mounting state of the cover for the mounted electrical equipment, the equipment housing, and the mounting bracket in the first through-hole of the building material. [Figure 6B]FIG. 6B is a cross-sectional view showing the mounting states of a cover for a mounted electrical device, an equipment housing portion, and a mounting bracket in a first through-hole of another building material. [Figure 7] FIG. 7 is a perspective view showing the appearance of a cover for a mounted electrical device, an electrical device, an equipment housing portion, and a mounting bracket according to a modification of the embodiment. [Figure 8] FIG. 8 is a perspective view showing the appearance of another cover for a mounted electrical device according to a modification of the embodiment. [Figure 9] FIG. 9 is a perspective view showing the appearance of a cover for a mounted electrical device according to another modification. 【MODE FOR CARRYING OUT THE INVENTION】 【0011】 Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. Note that each of the embodiments described below shows comprehensive or specific examples. The numerical values, shapes, materials, components, arrangement positions and connection forms of the components, steps, order of steps, etc. shown in the following embodiments are merely examples and are not intended to limit the present disclosure. In addition, among the components in the following embodiments, components not described in the independent claims are described as optional components. 【0012】 Also, each figure is a schematic diagram and is not necessarily drawn precisely. In each figure, the same reference numerals are given to the same constituent members. In the following embodiments, expressions such as substantially vertical and cylindrical are used. For example, substantially vertical and cylindrical not only mean completely vertical and completely cylindrical, but also substantially vertical and substantially cylindrical, that is, for example, including an error of about several percent. Also, substantially vertical and cylindrical means vertical and cylindrical within a range in which the effects according to the present disclosure can be achieved. The same applies to other expressions using "substantially" and "shape". 【0013】 In the following embodiments, the flange portion side of the cover for the mounted electrical device is defined as the +Z-axis direction, and the bottom wall side of the cover for the mounted electrical device is defined as the -Z-axis direction. 【0014】 (Embodiment) <Configuration> First, the configurations of the cover 30 for the mounted electrical equipment and the mounted electrical equipment 1 will be described using FIGS. 1A to 6B. 【0015】 FIG. 1A is a perspective view showing the appearance of the cover 30 for the mounted electrical equipment and the mounted electrical equipment 1 according to the embodiment installed on the building material. In FIG. 1A, a case where the electric wire 90 is connected to the second through hole 35 formed in the side wall 32 of the cover 30 for the mounted electrical equipment is illustrated. FIG. 1B is a perspective view showing the appearance of another cover 30 for the mounted electrical equipment and the mounted electrical equipment installed on the building material. In FIG. 1B, a case where the electric wire 90 is connected to the second through hole 35 formed in the bottom wall 31 of the cover 30 for the mounted electrical equipment is illustrated. FIG. 2 is a perspective view showing the appearance of the cover 30 for the mounted electrical equipment, the electrical equipment 20, the equipment housing portion 40, and the mounting bracket 50 according to the embodiment. FIG. 3A is a perspective view showing the appearance of the cover 30 for the mounted electrical equipment having the second through hole 35 formed in the side wall 32. FIG. 3B is a perspective view showing the appearance of the cover 30 for the mounted electrical equipment having the second through hole 35 formed in the bottom wall 31. FIG. 3C is a perspective view showing the appearance of another cover 30 for the mounted electrical equipment according to the embodiment. FIG. 4 is a view showing the shape of the second through hole 35 of the cover 30 for the mounted electrical equipment according to the embodiment. FIG. 5 is a cross-sectional view showing the cover 30 for the mounted electrical equipment, the equipment housing portion 40, and the mounting bracket 50 taken along the line V-V of FIG. 2. Note that in FIG. 5, the illustration of the electrical equipment, the groove portion, and the stepped portion of the cover 30 for the mounted electrical equipment is omitted. FIG. 6A is a cross-sectional view showing the mounting state of the cover 30 for the mounted electrical equipment, the equipment housing portion 40, and the mounting bracket 50 in the first through hole 11 of the building material. FIG. 6B is a cross-sectional view showing the mounting state of the cover 30 for the mounted electrical equipment, the equipment housing portion 40, and the mounting bracket 50 in the first through hole 11 of another building material. 【0016】 As shown in Figures 1A and 1B, the mounted electrical equipment 1 is a device that is mounted through a first through-hole 11 formed in the building material. Specifically, the mounted electrical equipment 1 is inserted into the first through-hole 11 and fixed in the first through-hole 11 such that a portion of it is exposed from the surface of the building material and the remaining portion is embedded in the building material. Here, building material refers to structural materials such as flooring, ceiling materials, and wall materials that make up a building. The surface of the building material refers to the exposed surface of the building material. The surface is an example of an exposed surface. 【0017】 Mounted electrical equipment 1 houses electrical equipment 20 inside. Electrical equipment 20 is electronic equipment that is mounted on a building surface, such as a power outlet, power switch, communication connector, telephone modular jack outlet, LAN (Local Area Network) outlet, alarm, alarm, TV outlet, and built-in sensor (e.g., motion sensor). In Figures 1A and 1B, a power outlet is shown as an example of electrical equipment 20. 【0018】 The electrical equipment 20 rotates so as to be displaced relative to the mounted electrical equipment 1 into a position where it is housed in the cover opening 42a, or into a position where it protrudes from the cover opening 42a. 【0019】 As shown in Figures 2, 3A, and 3B, the mounting-type electrical equipment 1 comprises a mounting-type electrical equipment cover 30, an equipment housing section 40, and a mounting bracket 50 housed in the mounting-type electrical equipment cover 30. 【0020】 Next, we will describe the specific configuration of the mounting-type electrical equipment cover 30. 【0021】 [Mountable electrical equipment cover 30] The mounting-type electrical equipment cover 30 is installed to house the mounting bracket 50 and to close the first through-hole 11. In other words, the mounting-type electrical equipment cover 30 closes the first through-hole 11 from the back side of the building material, covering the electrical equipment 20 and the mounting bracket 50. The mounting-type electrical equipment cover 30 is used to cover the electrical equipment 20. In this embodiment, the mounting-type electrical equipment cover 30 is used when mounting a mounting-type floor outlet, which is the electrical equipment 20, to the first through-hole 11. The back side is an example of the side opposite to the exposed side. 【0022】 The mounting type electrical equipment cover 30 is either transparent or opaque. When the mounting bracket 50 is housed in the mounting type electrical equipment cover 30, it is preferable that the mounting type electrical equipment cover 30 has enough transparency to allow visibility of the connection portion of the electrical equipment 20 that is electrically connected to the power line through the mounting type electrical equipment cover 30. 【0023】 Furthermore, the cover 30 for the mounted electrical equipment is flexible enough to accommodate the mounting bracket 50 in both the state before and after the mounting bracket 50 comes into contact with the building material. 【0024】 Furthermore, the mounting-type electrical equipment cover 30 is made of, for example, a vinyl acetate-based material such as EVA (Ethylene-Vinyl Acetate), or a resin material such as polyethylene. 【0025】 The mounting-type electrical equipment cover 30 is a bottomed cylindrical container with a cover opening 30a formed therein for inserting the electrical equipment 20 inside, with one end open and the other closed. In this embodiment, the mounting-type electrical equipment cover 30 is a cylindrical container. However, the mounting-type electrical equipment cover 30 may also be a rectangular tubular container. Furthermore, the shape of the mounting-type electrical equipment cover 30 is not limited to a cylindrical or rectangular tubular container. The cover opening 30a is an example of an opening. 【0026】 Specifically, the mounting-type electrical equipment cover 30 comprises a bottom wall 31, a side wall 32, and a flange portion 33. 【0027】 The bottom wall 31 is the bottom of the cover 30 for mounted electrical equipment, facing the cover opening 30a. 【0028】 Furthermore, the bottom wall 31 has multiple stepped portions 31a. 【0029】 Each of the multiple stepped portions 31a is formed in the bottom wall 31 so as to gradually decrease in diameter from the side wall 32 toward the center of the bottom wall 31, and is contractible along the longitudinal direction of the groove portion 34. In this embodiment, the multiple stepped portions 31a are formed in the bottom wall 31 so as to gradually protrude in the direction away from the cover opening 30a, that is, in the negative Z-axis direction. 【0030】 Furthermore, each of the multiple stepped portions 31a is circular in shape and is arranged concentrically with respect to the center of the bottom wall 31. Note that the stepped portions 31a may also be polygonal in shape. The shape of the stepped portions 31a is not limited to circular or polygonal. 【0031】 The side wall 32 is connected to the outer edge of the bottom wall 31 and rises from the outer edge of the bottom wall 31 toward the cover opening 30a. In other words, the side wall 32 is tubular and rises approximately perpendicular to the bottom wall 31. 【0032】 Furthermore, the side wall 32 has multiple grooves 34 formed along the direction from the bottom wall 31 toward the cover opening 30a. Since multiple grooves 34 are formed around the entire circumference of the side wall 32, the outer and inner surfaces of the side wall 32 have an uneven surface with alternating recesses and protrusions. 【0033】 In this embodiment, each of the multiple grooves 34 extends from the edge of the side wall 32 on the bottom wall 31 side to the edge on the cover opening 30a side. 【0034】 The flange portion 33 is a flange connected to the edge of the side wall 32 that forms the cover opening 30a. The flange portion 33 extends radially outward from the edge of the side wall 32 that forms the cover opening 30a. In other words, the flange portion 33 is positioned around the cover opening 30a and is formed to extend outward from the cover opening 30a. 【0035】 Furthermore, when the equipment housing section 40 is attached to the building material, the flange portion 33 is sandwiched between the surface of the building material and the equipment housing section 40. As a result, the flange portion 33 seals the space between the building material and the equipment housing section 40, allowing the mounting-type electrical equipment cover 30 to be installed so as to close the first through hole 11 from the cover opening 30a side. 【0036】 Furthermore, the shape of the flange portion 33 is circular, as shown in Figures 3A and 3B. The shape of the flange portion 33a may also be rectangular, as shown in Figure 3C. Note that the shapes of the flange portions 33 and 33a are not limited to circular or rectangular. For example, the shapes of the flange portions 33 and 33a may be polygonal shapes other than rectangular. 【0037】 Furthermore, the cover 30 for mounted electrical equipment has a second through-hole 35 formed in at least one of the bottom wall 31 facing the cover opening 30a and the side wall 32 that is erected from the bottom wall 31 toward the cover opening 30a and forms the cover opening 30a. 【0038】 The second through-hole 35 is formed in a position opposite to the opening of the power supply connection portion 52, so as to correspond to the power supply connection portion 52 formed in the mounted electrical equipment 1. The second through-hole 35 may also be formed closer to the bottom wall 31 than the position opposite to the opening of the power supply connection portion 52. 【0039】 Figures 1A and 3A illustrate the case where the second through-hole 35 is formed in the side wall 32. In this case, the opening of the power supply connection part 52 is formed in the peripheral wall 41b, as shown in Figure 2. Figures 1B and 3B illustrate the case where the second through-hole 35 is formed in the bottom wall 31. In this case, the opening of the power supply connection part 52 is formed in the bottom 41a. 【0040】 A wire 90 is passed through at least one of the second through-holes 35 formed in the bottom wall 31 or the side wall 32. Specifically, Figures 1A and 3A illustrate the case where a wire 90 is passed through the second through-hole 35 formed in the bottom wall 31, and Figures 1B and 3B illustrate the case where a wire 90 is passed through the second through-hole 35 formed in the side wall 32. Furthermore, if a second through-hole 35 is formed in both the bottom wall 31 and the side wall 32 of the mounting-type electrical equipment cover 30, a wire 90 may be passed through the second through-hole 35. In other words, a wire 90 may be passed through at least one of the second through-holes 35. 【0041】 Furthermore, while Figures 1A, 1B, 3A, and 3B illustrate a case where one electric wire 90 is passed through one second through-hole 35, the case is not limited to this. In other words, multiple electric wires 90 may be passed through one second through-hole 35. 【0042】 As shown in Figure 3A, if the second through-hole 35 is formed in the side wall 32, the second through-hole 35 formed in the side wall 32 may be formed on the side of the side wall 32 closer to the bottom wall 31 than to the cover opening 30a side. 【0043】 Furthermore, as shown in Figure 3B, if the second through-hole 35 is formed in the bottom wall 31, the second through-hole 35 formed in the bottom wall 31 may be formed on the side of the cover opening 30a rather than at the position furthest from the cover opening 30a in the bottom wall 31. In other words, since the multiple stepped portions 31a formed in the bottom wall 31 gradually protrude along the direction away from the cover opening 30a, the second through-hole 35 may be formed on the side of the bottom wall 31 rather than at the center of the bottom wall 31. The position furthest from the cover opening 30a in the bottom wall 31 is the portion of the bottom wall 31 furthest from the cover opening 30a. 【0044】 Furthermore, to prevent liquid from entering the electrical equipment 20, the second through-hole 35 may be formed extending from the side wall 32 to the bottom wall 31. 【0045】 Furthermore, the shape of the second through-holes 35, 35a, 35b, and 35c is one of the following: the opening surface is rectangular as shown in Figure 4(a), circular as shown in Figure 4(b), a cut-out straight line as shown by the thick solid line in Figure 4(c), or a cut-out cross shape as shown by the thick solid line in Figure 4(d). The length of the cuts in Figure 4(c) and Figure 4(d) is cut according to the diameter of the electric wire 90. Here, "cut-out" includes not only simple cuts but also notches. 【0046】 Furthermore, the opening area of ​​the second through-hole 35 is set to be larger than the cross-sectional area of ​​the wire 90 shown by the dashed-dot line in Figure 4, in order to ensure drainage in the cover 30 for mounted electrical equipment. In addition, when the wire 90 is passed through the second through-hole 35, the equivalent gap area in the second through-hole 35 must be kept below a certain value. A larger equivalent gap area allows for drainage of liquid accumulated in the cover 30 for mounted electrical equipment, but in order to ensure airtight and dustproof effects, the equivalent gap area should be kept as small as possible. The equivalent gap area required by JISA2201, etc., is 0.24 cm². 2 Therefore, the upper limit of the equivalent gap area is set to 0.24 cm. 2 Therefore, the equivalent gap area is 0.24 cm². 2It is considered that the second through-hole 35 should be set as follows. This makes it possible to achieve both a reduction in the airtight and dustproof effects and a drainage function in the mounted electrical equipment cover 30. Here, the equivalent gap area is the amount of air that enters from the outside when the inside of the mounted electrical equipment cover 30 is depressurized, and this is calculated as the total floor area per 1 cm². 2 This value is converted to the area of ​​the gap around the edge and is an indicator of the airtightness of the cover 30 for mounted electrical equipment. 【0047】 The second through-hole 35 may be pre-formed in the mounting-type electrical equipment cover 30, but it may also be formed when the electrical equipment 20 is mounted to the first through-hole 11 by inserting the electric wire 90 into the mounting-type electrical equipment cover 30 at a position corresponding to the opening of the power supply connection part 52. In this case, the electric wire 90 forms the second through-hole 35 in the mounting-type electrical equipment cover 30 and is electrically connected to the power supply connection part 52 of the electrical equipment 20. Even in this case, in order to ensure the drainage function of the mounting-type electrical equipment cover 30, the second through-hole 35 is formed such that its opening area is set to be larger than the opening area of ​​the second through-hole 35. 【0048】 Next, the configuration of the equipment housing section 40 will be explained using Figures 2 and 5. 【0049】 [Equipment housing section 40] As shown in Figures 2 and 5, the equipment housing 40 rotatably supports the electrical equipment 20. The equipment housing 40 is installed in the first through-hole 11 formed in the building material by being inserted into the first through-hole 11. 【0050】 The equipment housing section 40 has a housing 41 and a lid 42. 【0051】 The housing 41 is a bottomed cylindrical container that holds the electrical equipment 20, with one end open and the other closed. In this embodiment, the housing 41 is a cylindrical container. However, the housing 41 may also be a rectangular container. Furthermore, the shape of the housing 41 is not limited to a cylindrical or rectangular container. The housing 41 is positioned in the first through-hole 11 of the building material, inserted into the first through-hole 11. 【0052】 The housing 41 has a bottom portion 41a and a peripheral wall portion 41b. 【0053】 The bottom portion 41a is positioned opposite the housing opening 41c and the lid 42, and faces the bottom wall 31 of the mounting type electrical equipment cover 30. 【0054】 The peripheral wall portion 41b is connected to the outer edge of the bottom portion 41a and rises from the outer edge of the bottom portion 41a toward the housing opening 41c. In other words, the peripheral wall portion 41b is tubular in shape, rising almost perpendicularly to the bottom portion 41a. 【0055】 Furthermore, a pair of mounting openings 41b1 are formed in the peripheral wall portion 41b for arranging a pair of mounting portions 60 of the mounting bracket 50. Each mounting opening 41b1 corresponds one-to-one with the pair of mounting portions 60. The pair of mounting openings 41b1 are positioned opposite each other with respect to the central axis of the housing 41. 【0056】 Furthermore, a pair of mounting portions 60 of the mounting bracket 50 are provided in the pair of mounting openings 41b1, and the pair of mounting portions 60 are arranged to protrude from the mounting openings 41b1 toward the outside of the peripheral wall portion 41b. This pair of mounting portions 60 is positioned opposite the cover 42. 【0057】 The cover 42 is plate-shaped. The cover 42 has a cover opening 42a formed in its central portion. The cover opening 42a is an opening for arranging the rotating electrical equipment 20. In other words, the cover opening 42a allows displacement of the electrical equipment 20 between a position where the electrical equipment 20 protrudes from this opening and a position where the electrical equipment 20 is housed inside the housing 41. When the electrical equipment 20 is housed inside the housing 41, the cover opening 42a is closed by the top cover 21 of the electrical equipment 20. The top cover 21 is attached to the electrical equipment 20 and rotates to either open the cover opening 42a or close the cover opening 42a. 【0058】 The cover 42 is positioned on the Z-axis positive side relative to the peripheral wall 41b. In other words, the cover 42 is connected to the edge of the peripheral wall 41b opposite to the bottom 41a side to which it is connected. 【0059】 When attached to the housing 41, the cover 42 is larger than the outer diameter of the peripheral wall portion 41b and extends radially outward from the housing opening 41c. In other words, the cover 42 can function as a flange for the equipment housing portion 40. For this reason, the cover 42 can be attached to the building material by sandwiching the flange portion 33 between the building material and the mounting bracket 50. Because the cover 42, together with the mounting bracket 50, sandwiches the building material and the flange portion 33, the flange portion 33 can seal the space between the cover 42 and the building material. In other words, because the mounting-type electrical equipment cover 30 covers the equipment housing portion 40 and the flange portion 33 is sandwiched between the building material and the cover 42, sealing the space between the building material and the cover 42, the mounting-type electrical equipment cover 30 can close the first through hole 11. 【0060】 Next, the configuration of the mounting bracket 50 will be described. 【0061】 [Mounting bracket 50] The mounting bracket 50 is a fitting for mounting electrical equipment 20 which is attached through a first through-hole 11 formed in the building material. The mounting bracket 50 is movable so that it can contact the back surface, which is the surface of the building material opposite to the front surface, or the side wall surface 12 of the building material that forms the first through-hole 11, when attaching the equipment housing 40 to the building material and after attachment. 【0062】 Specifically, the mounting bracket 50 comprises a base 51, a pair of mounting parts 60, and a pair of fasteners 70. 【0063】 The base 51 is the foundation of the mounting bracket 50 and is housed in the housing 41. The base 51 is the part to which the electrical equipment 20 is mounted. When the equipment housing section 40 is attached to the building material, the base 51 can hold the electrical equipment 20 in a position where it is housed in the base 51 relative to the mounted electrical equipment 1, with a portion of the electrical equipment 20 protruding from the cover opening 42a. In the position where a portion of the electrical equipment 20 protrudes from the cover opening 42a, the base 51 can hold the electrical equipment 20 such that, when the mounted electrical equipment 1 is attached to the floor material, the opening surface of the connection port of the electrical equipment 20 faces diagonally upward. 【0064】 The pair of mounting portions 60 correspond one-to-one with the pair of mounting openings 41b1. The pair of mounting portions 60 are inserted through the pair of mounting openings 41b1 and are positioned to protrude from the outer circumferential surface of the peripheral wall portion 41b. This allows the pair of mounting portions 60 to come into contact with the building material. Specifically, the pair of mounting portions 60 can come into contact with the back surface, which is the surface of the building material opposite to the front surface, or with the side wall surface 12 of the building material that forms the first through hole 11, when the equipment housing portion 40 is attached to the building material and after attachment. 【0065】 Each of the pair of fasteners 70 comprises a fixing bracket 71 and a shaft member 72. 【0066】 The fixing bracket 71 is movable along the Z-axis direction by the rotation of the shaft member 72. Furthermore, the fixing bracket 71 can rotate the mounting portion 60 by moving along the Z-axis direction by the rotation of the shaft member 72. Then, by tightening the fastener 70 from the exposed surface side, the fixing bracket 71 can be fastened from the back surface of the building material via the mounting portion 60. 【0067】 For example, as shown in Figure 6A, when the shaft member 72 is rotated in a predetermined direction, the fixing bracket 71 comes into contact with the base body 51, restricting its rotation and causing it to rise along the positive Z-axis direction. At this time, the fixing bracket 71 slides along the outer circumferential surface of the peripheral wall portion 41b, pushing it upward. Conversely, when the shaft member 72 is rotated in the opposite direction to the predetermined direction, the fixing bracket 71 comes into contact with the base body 51, restricting its rotation and causing it to descend along the negative Z-axis direction. At this time, the fixing bracket 71 slides along the outer circumferential surface of the peripheral wall portion 41b, pushing it downward. 【0068】 Furthermore, as shown in Figure 6B, when the fastener 70 is rotated in a predetermined direction, the fixing bracket 71 contacts the restricting portion of the base 51, restricting its rotation and causing it to rise along the positive Z-axis direction. At this time, the mounting portion 60 can also rotate so as to spread outward from the outer circumferential surface of the peripheral wall portion 41b, using the end edge of the mounting portion 60 on the lid 42 side as a pivot point. Also, when the fastener 70 is rotated in the opposite direction to the predetermined direction, the fixing bracket 71 contacts the restricting portion of the base 51, restricting its rotation and causing it to descend along the negative Z-axis direction. At this time, the mounting portion 60 can also rotate so as to move outward from the outer circumferential surface of the peripheral wall portion 41b, using the end edge of the mounting portion 60 on the lid 42 side as a pivot point. 【0069】 As shown in Figures 2 and 5, the pair of shaft members 72 are threaded members arranged along the Z-axis direction near the outer circumferential surface of the peripheral wall portion 41b. The pair of shaft members 72 are positioned to sandwich the peripheral wall portion 41b of the housing 41 and are inserted through the lid 42, the flange portion of the base 51, the pair of mounting portions 60, and the pair of fixing brackets 71, respectively. 【0070】 When attaching the mounting bracket 50 to the building material and after attachment, the shaft member 72 is tightened from the exposed side of the building material, causing the mounting bracket 50 to come into contact with the building material. As the shaft member 72 is tightened, the head of the shaft member 72 presses the cover 42 toward the building material, and the fixing bracket 71 presses the mounting portion 60 toward the building material, so that the cover 42 and the mounting portion 60 can clamp the building material and the flange portion 33 of the mounting type electrical equipment cover 30. In other words, by rotating the shaft member 72 in a predetermined direction, the mounting portion 60 is pressed toward the building material so that the fixing bracket 71 is brought closer to the cover 42, thereby generating a clamping force on the building material. 【0071】 <Effects and Effects> Next, the effects and advantages of the mountable electrical equipment cover 30 in this embodiment will be described. 【0072】 As described above, the mounting-type electrical equipment cover 30 of this embodiment is a mounting-type electrical equipment cover 30 that accommodates a mounting bracket 50 for mounting an electrical equipment 20 which is attached through a first through-hole 11 formed in the building material, and is installed so as to close the first through-hole 11. The mounting bracket 50 is also movable so as to be able to contact the surface of the building material opposite to the exposed surface or the side wall surface 12 of the building material that forms the first through-hole 11 when attached to the building material and after attachment. The mounting-type electrical equipment cover 30 also has a second through-hole 35 formed in at least one of the bottom wall 31 facing the cover opening 30a and the side wall 32 that rises from the bottom wall 31 toward the cover opening 30a and forms the cover opening 30a. The mounting-type electrical equipment cover 30 is also flexible enough to accommodate the mounting bracket 50 in any state, before or after the mounting bracket 50 comes into contact with the building material. 【0073】 According to this, the cover 30 for the mounted electrical equipment is installed so as to close the first through hole 11, thereby suppressing the inflow of air and dust from the area on the back side of the building material to the area on the front side of the building material. 【0074】 Furthermore, even if liquid enters the interior of the mounting-type electrical equipment cover 30, the liquid can be discharged through the second through-hole 35 formed in at least one of the bottom wall 31 and the side wall 32 of the mounting-type electrical equipment cover 30. 【0075】 Therefore, the mountable electrical equipment cover 30 can drain liquids that have entered the interior while suppressing a decrease in airtight and dustproof effects. In other words, the mountable electrical equipment cover 30 can achieve both suppression of a decrease in airtight and dustproof effects and drainage functionality. 【0076】 In particular, when attaching the electrical equipment 20 to the first through-hole 11 of the building material using the mounting bracket 50, the flexible mounting-type electrical equipment cover 30 can deform in accordance with the movement of the mounting bracket 50, even if the mounting bracket 50 is movable. In other words, the mounting bracket 50 housed in the mounting-type electrical equipment cover 30 can be operated before and after attaching the electrical equipment 20 to the building material. 【0077】 Furthermore, the mounting-type electrical equipment 1 of this embodiment includes a mounting-type electrical equipment cover 30 and a mounting bracket 50 housed in the mounting-type electrical equipment cover 30. 【0078】 This mounted electrical device 1 also produces the same effects as described above. 【0079】 Furthermore, the mounting-type electrical equipment cover 30 of this embodiment is used when mounting the mounting-type floor outlet, which is the electrical equipment 20, into the first through-hole 11. 【0080】 According to this, if the building material is flooring material, the intrusion of air from under the floor can be suppressed. Therefore, by improving the thermal insulation performance of the first through-hole 11, the air environment in the area above the floor can be maintained in a predetermined state. 【0081】 Furthermore, in the mounting-type electrical equipment cover 30 of this embodiment, a plurality of grooves 34 are formed in the side wall 32 along the direction from the bottom wall 31 toward the cover opening 30a. The bottom wall 31 is provided with a plurality of stepped portions 31a formed so as to gradually decrease in diameter from the side wall 32 toward the center of the bottom wall 31. 【0082】 According to this, since a stepped portion 31a is formed in the bottom wall 31, it can contract along the longitudinal direction of the groove portion 34, so the cover 30 for mounted electrical equipment becomes more easily deformed in response to the movement of the mounting bracket 50. Therefore, greater flexibility can be ensured in the cover 30 for mounted electrical equipment. 【0083】 Furthermore, in the mounting-type electrical equipment cover 30 of this embodiment, an electric wire 90 is passed through at least one of the second through-holes 35 formed in the bottom wall 31 or the side wall 32. 【0084】 According to this, even if the electric wire 90 is passed through the second through hole 35, the liquid that has entered the inside of the cover 30 for mounted electrical equipment will be discharged along the electric wire 90. 【0085】 Furthermore, in the mounting-type electrical equipment cover 30 of this embodiment, at least one second through hole 35 is used to pass an electric wire 90 through. 【0086】 According to this, by passing the electric wire 90 through the second through hole 35, the equivalent gap area in the second through hole 35 is reduced, thereby suppressing a decrease in the airtight and dustproof effects of the cover 30 for mounted electrical equipment. 【0087】 Furthermore, in the mounting-type electrical equipment cover 30 of this embodiment, the second through hole 35 formed in the bottom wall 31 is formed on the side of the cover opening 30a that is further away from the cover opening 30a than the position on the bottom wall 31 that is furthest from the cover opening 30a. 【0088】 According to this, even if the bottom wall 31 of the mounting type electrical equipment cover 30 comes into contact with a part of an object, the second through-hole 35 is formed on the side wall 32 side, so liquid can be drained from the second through-hole 35 of the bottom wall 31. 【0089】 Furthermore, in the mounting-type electrical equipment cover 30 of this embodiment, the shape of the second through hole 35 is one of the following: the opening surface is square, circular, a cut-out straight line, or a cut-out cross shape. 【0090】 According to this, a second through-hole 35 can be easily formed in the mountable electrical equipment cover 30, thereby enabling the mountable electrical equipment cover 30 to achieve both a reduction in airtight and dustproof effects and a drainage function. 【0091】 (Modified example of the embodiment) First, the configuration of the mounted electrical equipment 1 will be explained using Figures 7 and 8. 【0092】 Figure 7 is a perspective view showing the external appearance of a modified mounting type electrical equipment cover 30e, electrical equipment 20, equipment housing section 40, and mounting bracket 50 according to the embodiment. Figure 8 is a perspective view showing the external appearance of another modified mounting type electrical equipment cover 30e according to the embodiment. 【0093】 In the following description, as shown in Figures 7 and 8, the basic configuration of the mountable electrical equipment cover 30e in this modified example is the same as that of the mountable electrical equipment cover in the embodiment. Therefore, the same reference numerals are used for the basic configuration of the mountable electrical equipment cover 30e in this modified example, and their descriptions are omitted as appropriate. This modified example differs from the embodiment in that a first side wall 131 and a second side wall 132 are provided on the side wall 32 of the mountable electrical equipment cover 30e. 【0094】 In this modified example, the side wall 32 of the cover 30e for the mounted electrical equipment has a first side wall 131 formed on the side of the cover opening 30a and a second side wall 132 formed on the side of the bottom wall 31. 【0095】 The first side wall 131 is part of the side wall 32 and is located on the Z-axis positive side than the second side wall 132. When the outermost circumference of the side wall 32 is defined as a circle, the curvature of the first side wall 131 is the same as the curvature of the side wall 32. 【0096】 The second side wall 132 is part of the side wall 32 and is located on the negative Z-axis side than the first side wall 131. The second side wall 132 is formed by cutting out a part of the side wall 32. In other words, the distance from the central axis to the second side wall 132 is shorter than that to the first side wall 131. To put it another way, the distance L2 from the central axis of the side wall 32 to the second side wall 132 is shorter than the distance L1 from the central axis of the side wall 32 to the first side wall 131. The formation of the second side wall 132 narrows the side of the side wall 32 on the bottom wall 31 side. 【0097】 In this modified example, the second through-hole 35 is formed in at least one of the bottom wall 31 and the side wall 32. Figures 7 and 8 of this modified example illustrate the case in which the second through-hole 35 is formed in the side wall 32. 【0098】 When housing the equipment housing section 40 in this mounting-type electrical equipment cover 30e, the equipment housing section 40 and the mounting bracket 50 are housed in the mounting-type electrical equipment cover 30e such that the mounting bracket 50 provided on the equipment housing section 40 corresponds to the portion of the side wall 32 other than the second side wall 132. In other words, the positioning of the equipment housing section 40 and the mounting bracket 50 can be controlled. 【0099】 Furthermore, at least the first side wall 131 has a plurality of grooves 34 formed therein. In addition, the second side wall 132 of this embodiment also has a plurality of grooves 34 formed therein. 【0100】 The flange portion 33 of the mounting-type electrical equipment cover 30e is circular, as shown in Figure 7. Alternatively, the flange portion 33 may be rectangular. However, the shape of the flange portion 33 is not limited to circular or rectangular. For example, the flange portion 33 may be a polygon other than rectangular. 【0101】 In this modified example of a cover 30e for mounted electrical equipment, the side wall 32 comprises a first side wall 131 formed on the side of the cover opening 30a and a second side wall 132 formed on the side of the bottom wall 31. The second side wall 132 is shorter from the central axis than the first side wall 131. At least the first side wall 131 has a plurality of grooves 34 formed therein. 【0102】 According to this, since multiple grooves 34 are formed in the first side wall 131, the cover 30e for mounted electrical equipment can deform in accordance with the movement of the mounting bracket 50. Therefore, greater flexibility can be ensured in the cover 30e for mounted electrical equipment. 【0103】 (Other variations) The above description has been made of the covers for mounted electrical equipment and the mounted electrical equipment relating to this disclosure based on the above embodiments. However, this disclosure is not limited to these embodiments. Various modifications to the embodiments that a person skilled in the art could conceive of may also be included within the scope of this disclosure, as long as they do not deviate from the spirit of this disclosure. 【0104】 For example, the mounting-type electrical equipment cover 30 according to each of the above embodiments may have the configuration shown in Figure 9. Figure 9 is a perspective view showing the appearance of another modified mounting-type electrical equipment cover 30. The second through-hole 35 formed in the bottom wall 31 may be formed in the bottom wall 31 at the position furthest from the cover opening 30a. In this case, the second through-hole 35 is formed in the bottom wall 31 at the location in the mounting-type electrical equipment cover 30 where liquid is most likely to accumulate, making it easier to drain the liquid. 【0105】 The following describes the features of the mountable electrical equipment cover and the mountable electrical equipment described based on the above embodiments. <Technology 1> A mounting type electrical equipment cover that houses a mounting bracket for attaching electrical equipment to be attached through a first through-hole formed in a building material, and is installed so as to close the first through-hole, The mounting bracket is movable so as to be able to contact the surface of the building material opposite to the exposed surface or the side wall surface of the building material that forms the first through hole when attached to the building material and after attachment. The aforementioned cover for mounting electrical equipment has a second through-hole formed in at least one of the bottom wall facing the opening and the side wall that is erected from the bottom wall toward the opening and forms the opening. The aforementioned cover for the mounting type electrical equipment is flexible enough to accommodate the mounting bracket in any state, before or after the mounting bracket comes into contact with the building material. Mountable cover for electrical equipment. <Technology 2> This is used when installing the aforementioned electrical equipment, a floor-mounted outlet, into the first through-hole. A cover for mounting-type electrical equipment as described in Technical 1. <Technology 3> Multiple grooves are formed in the side wall along the direction from the bottom wall toward the opening. The bottom wall is provided with a plurality of stepped portions formed so as to gradually decrease in diameter from the side wall toward the center of the bottom wall. A cover for a mounting-type electrical appliance as described in Technology 1 or 2. <Technology 4> The side wall comprises a first side wall formed on the opening side and a second side wall formed on the bottom wall side, wherein the second side wall is shorter from the central axis than the first side wall, and at least the first side wall has the plurality of grooves formed therein. A cover for mounting-type electrical equipment as described in any one of the three technologies described above. <Technology 5> A wire is passed through at least one of the second through holes formed in the bottom wall or the side wall. A cover for mounting-type electrical equipment as described in any one of Technical 1 to 4. <Technology 6> A wire is passed through at least one of the second through holes. A cover for mounting-type electrical equipment as described in any one of Technical 1 to 5. <Technology 7> The second through-hole formed in the bottom wall is formed on the side of the opening that is further away from the opening in the bottom wall than the position furthest from the opening. A cover for mounting-type electrical equipment as described in any one of Technical 1 to 6. <Technology 8> The second through-hole formed in the bottom wall is formed in the bottom wall at the position furthest from the opening. A cover for mounting-type electrical equipment as described in any one of Technical 1 to 7. <Technology 9> The shape of the second through-hole is one of the following: the opening surface is rectangular, circular, a cut-out straight line, or a cut-out cross shape. A cover for mounting-type electrical equipment as described in any one of Technical 1 to 8. <Technology 10> A cover for mounting electrical equipment as described in any one of Technical 1 to 9, The mounting bracket is housed in the aforementioned cover for mounting electrical equipment. Mounted electrical equipment. 【0106】 Furthermore, this disclosure also includes forms obtained by applying various modifications to the above embodiments that a person skilled in the art could conceive, as well as forms realized by arbitrarily combining the components and functions of each embodiment without departing from the spirit of this disclosure. [Explanation of symbols] 【0107】 1. Mounted electrical equipment 11 First through hole 12 Side wall surface 20 Electrical equipment 30, 30e Mounting type electrical equipment cover 30a Cover opening (opening) 31 Bottom wall 31a Stepped section 32 Side wall 34 Groove 35 Second through hole 50 Mounting brackets 131 First side wall 132 Second side wall

Claims

[Claim 1] A mounting type electrical equipment cover that houses a mounting bracket for attaching electrical equipment to be attached through a first through-hole formed in a building material, and is installed so as to close the first through-hole, The mounting bracket is movable so as to be able to contact the surface of the building material opposite to the exposed surface or the side wall surface of the building material that forms the first through hole when attached to the building material and after attachment. The aforementioned cover for mounting electrical equipment has a second through-hole formed in at least one of the bottom wall facing the opening and the side wall that is erected from the bottom wall toward the opening and forms the opening. The aforementioned cover for the mounting type electrical equipment is flexible enough to accommodate the mounting bracket in any state, before or after the mounting bracket comes into contact with the building material. Multiple grooves are formed in the side wall along the direction from the bottom wall toward the opening. The bottom wall is provided with a plurality of stepped portions formed so as to gradually decrease in diameter from the side wall toward the center of the bottom wall. Mountable cover for electrical equipment. [Claim 2] A mounting type electrical equipment cover that houses a mounting bracket for attaching electrical equipment to be attached through a first through-hole formed in a building material, and is installed so as to close the first through-hole, The mounting bracket is movable so as to be able to contact the surface of the building material opposite to the exposed surface or the side wall surface of the building material that forms the first through hole when attached to the building material and after attachment. The aforementioned cover for mounting electrical equipment has a second through-hole formed in at least one of the bottom wall facing the opening and the side wall that is erected from the bottom wall toward the opening and forms the opening. The aforementioned cover for the mounting type electrical equipment is flexible enough to accommodate the mounting bracket in any state, before or after the mounting bracket comes into contact with the building material. The side wall comprises a first side wall formed on the opening side and a second side wall formed on the bottom wall side, wherein the second side wall is shorter from the central axis than the first side wall, and at least the first side wall has a plurality of grooves formed therein. Mountable cover for electrical equipment. [Claim 3] This is used when installing the aforementioned electrical equipment, a floor-mounted outlet, into the first through-hole. A cover for a mounting-type electrical device according to claim 1 or 2. [Claim 4] A wire is passed through at least one of the second through holes formed in the bottom wall or the side wall. A cover for a mounting-type electrical device according to claim 1 or 2. [Claim 5] A wire is passed through at least one of the second through holes. A cover for a mounting-type electrical device according to claim 1 or 2. [Claim 6] The second through-hole formed in the bottom wall is formed on the side of the opening that is further away from the opening in the bottom wall than the position furthest from the opening. A cover for a mounting-type electrical device according to claim 1 or 2. [Claim 7] The second through-hole formed in the bottom wall is formed in the bottom wall at the position furthest from the opening. A cover for a mounting-type electrical device according to claim 1 or 2. [Claim 8] The shape of the second through-hole is one of the following: the opening surface is rectangular, circular, cut into a straight line, or cut into a cross shape. A cover for a mounting-type electrical device according to claim 1 or 2. [Claim 9] A cover for mounting electrical equipment according to claim 1 or 2, The mounting bracket is housed in the aforementioned cover for mounting electrical equipment. Mounted electrical equipment.

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