JP5307515B2 - Installation structure of wiring / piping box and wiring / piping box - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wiring, piping box and wiring, and a structure for installing the piping box, which prevents dew condensation in a box body by improving heat insulation performance. <P>SOLUTION: A wiring box 40 includes a box body B formed as a bottomed square box having a bottom wall 12, a fixing part 37 including an abutment surface 37b which is abutted against a structure wall Wa and a fixing hole 37a which allows a fixing screw 38 to be secured to the structure wall Wa without penetrating the bottom wall 12, and a vacuum heat shielding material 30 provided to the bottom wall 12. The vacuum heat shielding material 30 is provided to the bottom wall 12 apart from the structure wall Wa while the abutment surface 37b abuts against the structure wall Wa. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a wiring / piping box installed on an outer wall of a building and an installation structure of the wiring / piping box.

For example, when installing a wiring device on a concrete wall, the wiring box is arranged between a structural wall (outer wall) standing on the outdoor side and a finish wall (inner wall) standing on the indoor side. . Moreover, in the concrete wall, the heat insulation structure for interrupting | blocking the heat transfer from the outdoor side to the indoor side is provided (for example, refer patent document 1). In Patent Document 1, a mounting base member is attached to the front surface of the back wall as a structural wall, and a foamable resin layer is formed on the front surface of the back wall to which the mounting base member is attached. The back plate portion of the wiring box is fixed to the mounting base member exposed by removing the foamable resin layer. Moreover, the heat insulating material which consists of foaming resin, such as urethane, is arrange | positioned at the back side of the mounting base member. And according to patent document 1, it is avoided that the inside of a wiring box couple | bonds with a back wall thermally directly by arrange | positioning a heat insulating material between the backplate part and back wall of a wiring box. The Therefore, it is suppressed that the hot and humid air in the wiring box is cooled by the back wall, and it is possible to suppress the occurrence of dew condensation in the wiring box.
JP 2002-315145 A

  However, even if a foamable resin layer is provided on the front surface of the back wall as in Patent Document 1, and a heat insulating material is provided on the back side of the mounting base member, the heat insulation is insufficient and the wiring box is Condensation may occur.

  An object of the present invention is to provide a wiring / piping box and a wiring / piping box installation structure capable of improving the heat insulating performance and preventing dew condensation in the box body.

In order to solve the above problems, the invention according to claim 1 is a box for wiring / piping installed on an outer wall for constructing a building, and is a box formed in a bottomed box shape having a bottom wall. An accommodation member formed in a box shape having an accommodation space for accommodating and supporting the vacuum insulation material is fixed to the bottom wall of the box body , and includes a main body and a vacuum insulation material provided on the bottom wall. The member includes a protective wall that is interposed between the vacuum heat insulating material and the outer wall and protects the vacuum heat insulating material from the outer wall, and an abutting surface that comes into contact with the inner surface of the outer wall. The gist is that the vacuum heat insulating material is provided on the bottom wall in a state of being separated from the inner surface by being brought into contact with the inner surface.

The invention described in 請 Motomeko 2, the wiring and piping boxes according to claim 1, wherein the housing member includes a fixing portion for fixing to the outer wall of the housing member by a fixing screw, the fixing unit Furthermore, the gist of the present invention is that a fixing hole that allows the fixing screw to be fixed to the outer wall and a contact surface that contacts the inner surface of the outer wall are formed .

The invention according to claim 3 is an installation structure of a wiring / piping box fixed in contact with an inner surface of an outer wall constituting a building, wherein the wiring / piping box has a bottom wall. A box body formed in a bottom box shape and a vacuum heat insulating material provided on the bottom wall, and formed in a box shape having a storage space for receiving and supporting the vacuum heat insulating material on the bottom wall of the box main body. A housing member is fixed, and the housing member is interposed between the vacuum heat insulating material and the outer wall to protect the vacuum heat insulating material from the outer wall, and is brought into contact with an inner surface of the outer wall. The gist of the invention is that the vacuum heat insulating material is provided on the bottom wall in a state of being separated from the inner surface of the outer wall by contacting the corresponding inner surface with the inner surface .

  According to the present invention, it is possible to improve the heat insulating performance and prevent condensation from occurring in the box body.

  Hereinafter, an embodiment in which the wiring / piping box and its installation structure of the present invention are embodied in the wiring box and its installation structure will be described with reference to FIGS. In the following description, “upper” and “lower” of the wiring box have the direction of the arrow Y1 shown in FIG. 1 as the vertical direction, and “left” and “right” have the direction of the arrow Y2 shown in FIG. In “front” and “rear”, the direction of the arrow Y3 shown in FIG.

  As shown in FIG. 1, the synthetic resin box body B is formed in a bottomed square box shape that opens to the front surface (one surface). The box body B is formed by a bottom wall 12 having a rectangular plate shape, and an upper side wall 13, a lower side wall 14, a left side wall 15, and a right side wall 16 as side walls standing from the periphery of the bottom wall 12. Yes. The bottom wall 12 has a plurality of insertion holes 12a through which the mounting screws 23 can be inserted. The upper side wall 13 and the lower side wall 14 are formed with wire drawing holes 13a, 14a, and the inner surfaces of the upper side wall 13 and the lower side wall 14 are provided with boss portions 21 projecting inwardly. A screw hole 21a into which a screw 22 (see FIG. 3) can be inserted is formed in the front surface of the boss portion 21.

  Next, the concrete wall W on which the box body B is installed will be described. As shown in FIG. 4, the concrete wall W includes a concrete structural wall Wa as an outer wall standing on the outdoor side of the building, and a finish wall as an inner wall standing on the indoor side from the structural wall Wa. It is constructed from Wb.

  Next, as shown in FIG. 1, a housing member 31 that is fixed to the bottom wall 12 of the box body B and that houses and supports the vacuum heat insulating material 30 will be described. In addition, the vacuum heat insulating material 30 wraps a porous core material with a wrap material, and decompresses the inside to 1 to 200 Pa. The vacuum heat insulating material 30 of the present embodiment has a vertically long rectangular parallelepiped shape in the vertical direction. The core material of the vacuum heat insulating material 30 is made of a material having low thermal conductivity (for example, urethane, powdered silica, fiber, etc.), and the wrap material is made of aluminum or the like.

  The housing member 31 includes a thin plate-like substrate 32, a bottom plate 33 erected on the lower front surface of the substrate 32, and both side edges of the upper surface of the bottom plate 33 erected from both side edges extending in the vertical direction on the front surface of the substrate 32. Are formed in a box shape from a side plate 34 connected to each other and a pair of fixing plates 35 connecting the front ends of both side plates 34. As shown in FIG. 3, the width between the front surface of the substrate 32 and the rear surface of the fixing plate 35 is longer than the thickness of the vacuum heat insulating material 30. The size of the upper surface of the bottom plate 33 is larger than the lower end surface of the vacuum heat insulating material 30. An accommodation space 36 is formed by the front surface of the substrate 32, the inner surfaces of the pair of side plates 34, the rear surfaces (back surfaces) of the pair of fixing plates 35, and the upper surface of the bottom plate 33. The heat insulating material 30 is accommodated and can be supported. The accommodation space 36 is opened forward from a portion other than the pair of fixed plates 35 and is opened upward.

  The length in the vertical direction (long side direction) of the pair of side plates 34 is substantially the same as the length in the vertical direction (long side direction) of the left side wall 15 and the right side wall 16. The length of the plate 35 in the left-right direction (long side direction) is substantially the same as the length of the bottom wall 12 in the left-right direction (short side direction).

  As shown in FIG. 1, in the substrate 32, a fixing portion 37 is provided above and below the upper and lower ends of the pair of side plates 34 and above and below the accommodation space 36. Each fixing portion 37 is formed with a fixing hole 37a into which a fixing screw 38 (see FIG. 3) can be inserted. As shown in FIG. 3, the rear surface (back surface) of each fixing portion 37 forms a smooth surface and forms a contact surface 37 b that contacts the front surface of the structural wall Wa. Further, the substrate 32 forms a protective wall that protects the vacuum heat insulating material 30 from the structural wall Wa.

  As shown in FIGS. 2 and 3, the bottom wall 12 of the box body B is brought into contact with the front surfaces of the pair of fixing plates 35 in the housing member 31, and the left side wall of the box body B is located inside the pair of side plates 34. 15 and the right side wall 16 are located, and the box body B is arranged so that the lower side wall 14 of the box body B is located above the bottom plate 33. Thereafter, the mounting screws 23 are forcibly screwed into the pair of fixing plates 35 from the insertion holes 12 a of the bottom wall 12 to fix the box body B to the housing member 31. At this time, the mounting screw 23 is screwed into the thickness of the fixing plate 35 so as not to protrude from the rear surface of the fixing plate 35 into the accommodation space 36. Further, when the vacuum heat insulating material 30 is stored in the storage space 36, the lower end surface of the vacuum heat insulating material 30 is supported by the bottom plate 33, and the rear surface (back surface) of the vacuum heat insulating material 30 is supported by the substrate 32, the box body B and A wiring box 40 composed of the fixing portion 37 and the housing member 31 is formed.

Next, a method of installing the wiring box 40 on the concrete wall W and installing a wiring device on the concrete wall W using the wiring box 40 will be described.
First, as shown in FIG. 3, the contact surfaces 37b of both the fixing portions 37 are brought into contact with the fixing position of the wiring box 40 on the front surface of the structural wall Wa. Next, the fixing screws 38 are inserted into the fixing holes 37a of the fixing portions 37, and the fixing screws 38 are screwed into the structural wall Wa to fix (install) the wiring box 40 to the structural wall Wa. At this time, the fixing screw 38 is screwed into the structural wall Wa without penetrating the bottom wall 12 of the box body B. Further, the substrate 32 of the housing member 31 is interposed between the front surface of the structural wall Wa and the rear surface of the vacuum heat insulating material 30. And the vacuum heat insulating material 30 is arrange | positioned between the contact surface 37b and the rear surface (back surface) of the bottom wall 12, and the vacuum heat insulating material 30 is separated from the front surface (inner surface) of the structural wall Wa and protected by the substrate 32. Is done.

  Next, in a state where a curing tape (not shown) is provided around the peripheral surface of the box body B and the housing member 31, foamed resin is sprayed on the front surface of the structural wall Wa, and as shown in FIG. A foamed resin layer Wc is formed on the front side of the substrate. Then, the wiring box 40 is embedded in the foamed resin layer Wc. Next, the finishing wall Wb is erected on the front side of the box body B, and the concrete wall W is constructed. Then, the installation structure of the wiring box 40 is constructed on the concrete wall W.

  Subsequently, a through hole Wd is formed in the finishing wall Wb from the front surface side of the finishing wall Wb so that the opening of the box body B faces the front side of the concrete wall W. Subsequently, a cable (not shown) drawn into the box main body B from the wire drawing hole 13a was connected to the outlet 41 as a wiring device, and inserted into both upper and lower portions of the mounting frame 42 holding the outlet 41. Screws 22 are screwed into the upper and lower boss portions 21 to attach the attachment frame 42 to the box body B. Then, the outlet 41 is attached to the box body B, and the outlet 41 is installed on the concrete wall W.

  In the concrete wall W, when the outdoor heat is transmitted to the indoor side, the transfer of heat to the box body B is suppressed by the inside of the vacuum heat insulating material 30 (the decompressed space). That is, the space between the structural wall Wa and the box body B is insulated by the vacuum heat insulating material 30. For this reason, the air in the box body B is hardly cooled by the outdoor heat.

According to the above embodiment, the following effects can be obtained.
(1) In a state where the wiring box 40 is installed on the concrete wall W, the vacuum heat insulating material 30 is interposed between the front surface (inner surface) of the structural wall Wa and the rear surface (rear surface) of the bottom wall 12 in the box body B. ing. The vacuum heat insulating material 30 has a lower thermal conductivity than a foam heat insulating material or an inorganic heat insulating material. For this reason, by disposing the vacuum heat insulating material 30 between the bottom wall 12 of the box main body B and the structural wall Wa, the vacuum heat insulating material 30 effectively suppresses heat transfer from the structural wall Wa to the box main body B. be able to. As a result, it is possible to suppress the hot and humid air in the box body B from being cooled by the structural wall Wa, and it is possible to suppress the occurrence of condensation in the box body B.

  (2) The vacuum heat insulating material 30 is thinner than a foam heat insulating material or an inorganic heat insulating material. Therefore, the gap for interposing the vacuum heat insulating material 30 between the structural wall Wa and the box body B can be narrowed compared to the case of using a foamed or inorganic heat insulating material, and the thickness of the concrete wall W can be reduced. Can be thinned.

  (3) The wiring box 40 is formed by fixing the housing member 31 to the box body B, and the fixing screw 38 is fixed to the structural wall Wa from the fixing hole 37a of the fixing portion 37 provided in the housing member 31. By doing so, it is fixed to the structural wall Wa. The fixing portion 37 extends above and below the accommodation space 36 that accommodates the vacuum heat insulating material 30 in the accommodation member 31. For this reason, the fixing screw 38 that fixes the wiring box 40 to the structural wall Wa does not penetrate the bottom wall 12 of the box body B. Therefore, when the wiring box 40 is fixed to the structural wall Wa, the fixing screw 38 is used. Therefore, the vacuum heat insulating material 30 can be prevented from being damaged.

  (4) The wiring box 40 is formed by fixing the housing member 31 to the box body B, and the substrate 32 of the housing member 31 is interposed between the bottom wall 12 and the front surface of the structural wall Wa. The substrate 32 abuts against the front surface of the structural wall Wa, whereby the vacuum heat insulating material 30 can be separated from the structural wall Wa by the substrate 32. For this reason, when the wiring box 40 is fixed to the structural wall Wa, the vacuum heat insulating material 30 is separated from the front surface of the structural wall Wa. Therefore, when fixing the wiring box 40 to the front surface of the structural wall Wa, even if a protrusion or the like protrudes from the front surface of the structural wall Wa, the substrate 32 prevents the vacuum heat insulating material 30 from being damaged by the protrusion or the like, The vacuum heat insulating material 30 can be protected. Further, since the substrate 32 of the housing member 31 is interposed between the bottom wall 12 and the front surface of the structural wall Wa, the vacuum heat insulating material 30 may be directly thermally coupled to the front surface of the structural wall Wa. Absent. Therefore, heat transfer from the structural wall Wa to the box body B can be effectively suppressed by the vacuum heat insulating material 30.

  (5) The accommodation space 36 of the accommodation member 31 is surrounded by the substrate 32, the pair of side plates 34, and the pair of fixing plates 35. In a state where the vacuum heat insulating material 30 is housed and supported in the housing space 36, the substrate 32 is located on the rear side of the vacuum heat insulating material 30. For this reason, in a state where the wiring box 40 is fixed to the structural wall Wa, the substrate 32 is interposed between the rear surface of the vacuum heat insulating material 30 and the front surface of the structural wall Wa. Therefore, when fixing the wiring box 40 to the front surface of the structural wall Wa, even if a protrusion or the like protrudes from the front surface of the structural wall Wa, the substrate 32 prevents the vacuum heat insulating material 30 from being damaged by the protrusion or the like, The vacuum heat insulating material 30 can be protected.

  (6) By fixing the housing member 31 to the box main body B, the fixing portion 37 can be provided in the wiring box 40 and the vacuum heat insulating material 30 can be integrated with the box main body B. Therefore, by using the housing member 31, the fixing portion 37 can be provided in the existing box body B, and the vacuum heat insulating material 30 can be integrated.

  (7) Although the vacuum heat insulating material 30 generates a thermal bridge through which heat is transmitted through the wrap material, the vacuum heat insulating material 30 has a bottom wall 12 interposed between the front surface of the structural wall Wa and the structure of the vacuum heat insulating material 30. It is separated from the wall Wa. For this reason, the heat of the structural wall Wa is not directly transmitted to the wrap material of the vacuum heat insulating material 30, and the air in the box body B can be prevented from being cooled by the thermal bridge of the wrap material.

In addition, you may change the said embodiment as follows.
○ The wiring box may be changed as shown in FIG. Extending pieces 43 extending on the rear surface (back surface) side of the bottom wall 12 are formed on the left side wall 15 and the right side wall 16 of the box main body B, and the distal end portions of the extending pieces 43 extend outward. The fixing part 44 is formed at the bent part. A fixing hole 44 a through which the fixing screw 38 can be inserted is formed in the fixing portion 44. The rear surface of the fixed portion 44 forms an abutting surface 44b that abuts against the front surface of the structural wall Wa. Further, a support piece 45 extending on the rear surface (back surface) side of the bottom wall 12 is formed on the lower side wall 14 of the box body B. Then, as shown in FIG. 6, the vacuum heat insulating material 30 is housed in the housing space 46 that is surrounded by the rear surface (back surface) of the bottom wall 12, the inner surfaces of the pair of extending pieces 43, and the upper surface of the support piece 45. When supported, the wiring box 50 in which the box body B and the fixing portion 44 are integrated is formed.

  In a state where the wiring box 50 is fixed to the structural wall Wa, the fixing screw 38 is fixed to the structural wall Wa without penetrating the bottom wall 12. Further, in a state where the contact surface 44b is in contact with the front surface (inner surface) of the structural wall Wa, the vacuum heat insulating material 30 is bonded to the rear surface of the bottom wall 12 so that a space S is vacant with the front surface of the structural wall Wa. The

  Note that in the wiring box 50 shown in FIG. 5, the vacuum insulation material 30 is in a state where the extension length of the extension piece 43 is shortened and the contact surface 44 b is in contact with the front surface (inner surface) of the structural wall Wa. It may be in contact with the front surface of the structural wall Wa. Also in this case, since the fixing hole 44a is formed in the fixing portion 44 of the extending piece 43, the fixing screw 38 can be fixed to the structural wall Wa without passing through the bottom wall 12 by the fixing hole 44a.

  The vacuum heat insulating material 30 may be accommodated in the box main body B, and a wiring box may be formed from the box main body B and the vacuum heat insulating material 30. In addition, it is preferable that the vacuum heat insulating material 30 is adhere | attached on the box main body B with an adhesive agent, or is affixed on the box main body B with an adhesive tape. In this case, after fixing the mounting screw 23 to the structural wall Wa from the insertion hole 12a of the bottom wall 12 and fixing the box body B to the structural wall Wa, the vacuum heat insulating material 30 is accommodated in the box body B. In some cases, the internal pressure of the vacuum heat insulating material 30 approaches atmospheric pressure and the heat insulating effect is reduced. In this case, the heat insulation effect by the vacuum heat insulating material 30 can be maintained by replacing the vacuum heat insulating material 30 from the front side of the finishing wall Wb.

  Further, since the bottom wall 12 is interposed between the front surface of the structural wall Wa and the rear surface of the vacuum heat insulating material 30, the vacuum heat insulating material 30 can be separated from the structural wall Wa by the bottom wall 12. Therefore, the rear surface of the bottom wall 12 forms a contact surface. In a state where the box body B is fixed to the structural wall Wa by the bottom wall 12, the vacuum heat insulating material 30 is separated from the front surface of the structural wall Wa. Therefore, when fixing the box body B to the front surface of the structural wall Wa, even if a protrusion or the like protrudes from the front surface of the structural wall Wa, the bottom wall 12 prevents the vacuum heat insulating material 30 from being damaged by the protrusion or the like, The vacuum heat insulating material 30 can be protected. Therefore, the bottom wall 12 also serves as a protective wall.

  ○ When the vacuum heat insulating material 30 is accommodated in the box main body B and the box for wiring is formed from the box main body B and the vacuum heat insulating material 30, the wrap material of the vacuum heat insulating material 30 is provided with a locking portion, and the box main body A locked portion that can lock the locking portion of the vacuum heat insulating material 30 may be provided on the inner surface of B. Then, the vacuum heat insulating material 30 may be prevented from falling out of the box body B by locking the locking portion and the locked portion.

  As shown in FIG. 7, the vacuum heat insulating material 30 may be accommodated in the box main body B, and the wiring box 70 may be formed from the box main body B and the vacuum heat insulating material 30. In this case, a lid member 60 having a plate shape may be attached inside the box body B, and the lid member 60 may prevent the vacuum heat insulating material 30 from falling out of the box body B. Locking protrusions 61 are formed on the side ends (the upper end and the lower end in FIG. 7) of the lid member 60. On the other hand, on the upper side wall 13 and the lower side wall 14 of the box body B, locking grooves 13c and 14c that can be locked by the locking projections 61 are formed. And after accommodating the vacuum heat insulating material 30 in the box main body B, while accommodating the lid member 60 in the box main body B, each latching protrusion 61 is latched by the latching grooves 13c and 14c, and the lid member 60 is accommodated. It is attached in a state of being positioned in the box body B.

  In the housing member 31, the fixing portion 37 may be deleted to form the substrate 32 in a square plate shape, and a fixing hole may be formed in the substrate 32. The substrate 32 may be formed with a hole that allows the vacuum heat insulating material 30 housed in the housing member 31 to contact the front surface of the structural wall Wa.

  In the housing member 31, the fixing portion 37 may be deleted to form the substrate 32 in a square plate shape, and a fixing hole may be formed in the substrate 32. In this case, a protective wall is formed by the substrate 32. Alternatively, the substrate 32 may be formed with a hole that allows the vacuum heat insulating material 30 accommodated in the accommodating member 31 to contact the front surface of the structural wall Wa.

  A box for wiring may be formed from the box body B and the vacuum heat insulating material 30 by bonding the vacuum heat insulating material 30 to the rear surface (back surface) of the bottom wall 12 in the box main body B with an adhesive or a sticking tape. In this case, the vacuum heat insulating material 30 is brought into contact with the front surface of the structural wall Wa and the wiring box is fixed to the structural wall Wa by the fixing screw 38 penetrating the bottom wall 12. Therefore, this wiring box does not include a contact surface, a fixing portion, a storage member (storage space), and a protective wall.

  A box for wiring may be formed from the box body B and the vacuum heat insulating material 30 by bonding the vacuum heat insulating material 30 to the rear surface (back surface) of the bottom wall 12 in the box main body B with an adhesive or a sticking tape. In this case, a protective plate as a separate protective wall from the box body B may be interposed between the front surface of the structural wall Wa and the rear surface of the vacuum heat insulating material 30.

  ○ A box for wiring is formed from the box body B and the vacuum heat insulating material 30 by bonding the vacuum heat insulating material 30 to the rear surface (rear surface) of the bottom wall 12 of the box body B with an adhesive or an adhesive tape. A box-shaped housing member may be fixed to the rear surface, and the vacuum heat insulating material 30 may be housed and supported in the housing space of the housing member. Furthermore, you may form the contact surface 37b while forming the fixing | fixed part 37 of embodiment in this accommodating member. In addition, a protective wall may be formed by the housing member.

○ The structural wall Wa as the outer wall may be a gypsum board or earthen wall instead of a concrete wall.
○ The wiring box 40 may be embedded in a concrete wall as an outer wall. In this case, the vacuum heat insulating material 30 is accommodated in the box body B.

  ○ A box for piping that accommodates a connection between water pipes through which liquid (for example, hot water) flows, a box body formed in a bottomed box shape having a bottom wall, and a vacuum heat insulating material provided on the bottom wall of the box body You may form from. Furthermore, the piping box may include a fixing portion that includes a contact surface that contacts the structural wall and includes a fixing hole that can fix the fixing screw to the structural wall without penetrating the bottom wall. .

  A press-fit hole into which the vacuum heat insulating material 30 can be press-fitted is formed in the bottom wall 12 of the box body B, and the vacuum heat-insulating material 30 may be provided on the bottom wall 12 by press-fitting the vacuum heat-insulating material 30 into the press-fitted hole.

The disassembled perspective view which shows the box for wiring of embodiment. The perspective view which shows the box for wiring of embodiment. Sectional drawing which shows the state which fixed the box for wiring to the structure wall. Sectional drawing which shows the state which installed the box for wiring in the concrete wall. The perspective view which shows another example of the box for wiring. Sectional drawing which shows the state which fixed the box for wiring of another example to the structure wall. Sectional drawing which shows another example of the box for wiring.

Explanation of symbols

  B ... Box body, Wa ... Structural wall as outer wall, 12 ... Bottom wall, 30 ... Vacuum heat insulating material, 31 ... Housing member, 32 ... Substrate as protective wall, 37b, 44b ... Contact surface, 36, 46 ... Housing Space, 37, 44 ... fixed portion, 37a, 44a ... fixed hole, 38 ... fixed screw, 40, 50, 70 ... wiring box as wiring / piping box.

Claims (3)

A wiring / piping box installed on the outer wall of a building,
A box body formed in a bottomed box shape having a bottom wall;
It consists of a vacuum heat insulating material provided on the bottom wall,
An accommodation member formed in a box shape having an accommodation space for accommodating and supporting the vacuum heat insulating material is fixed to the bottom wall of the box body,
The housing member includes a protective wall that is interposed between the vacuum heat insulating material and the outer wall and protects the vacuum heat insulating material from the outer wall, and a contact surface that contacts the inner surface of the outer wall. A wiring / piping box provided on the bottom wall in a state in which the vacuum heat insulating material is separated from the inner surface by bringing a surface into contact with the inner surface. The housing member includes a fixing portion for fixing the housing member to the outer wall with a fixing screw. The fixing member is provided with a fixing hole for fixing the fixing screw to the outer wall, and an inner surface of the outer wall. The box for wiring and piping according to claim 1 , wherein a contact surface to be contacted is formed. It is an installation structure of a box for wiring and piping that is fixed in contact with the inner surface of the outer wall that constructs the building,
The wiring / piping box has a box body formed in a bottomed box shape having a bottom wall;
It consists of a vacuum heat insulating material provided on the bottom wall,
An accommodation member formed in a box shape having an accommodation space for accommodating and supporting the vacuum heat insulating material is fixed to the bottom wall of the box body,
The housing member includes a protective wall that is interposed between the vacuum heat insulating material and the outer wall and protects the vacuum heat insulating material from the outer wall, and a contact surface that contacts the inner surface of the outer wall. An installation structure of a wiring / piping box provided on the bottom wall in a state where the vacuum heat insulating material is separated from the inner surface of the outer wall by bringing a surface into contact with the inner surface.

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