JP2018059637A - Gas supply/discharge structure of ventilator and construction method thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a gas supply/discharge structure of a ventilator including an attachment for gas supply/discharge capable of easily connecting a gas supply/discharge port of the ventilator, at an existing hole provided on a wall, and a construction method thereof.SOLUTION: A gas supply/discharge structure 6 of a ventilator 1 includes an attachment 7 for gas supply/discharge arranged between the ventilator 1 and an indoor side wall surface Wa. The attachment 7 for gas supply/discharge includes diction conversion mechanisms 40, 80 that are connected to a back face of the ventilator 1 provided with a gas supply/discharge two-layer opening 101 partitioned into two layers, and that are configured to convert the gas supply/discharge two-layer opening 101 into inner and outer double pipes 43, 83 having inner pipes 431, 831 and outer pipes 432, 832 so that circulation directions of outside air OA and exhaust air EA supplied to the ventilator 1 are converted.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an air supply / exhaust structure for a ventilator including an attachment for air supply / exhaust, and a construction method thereof.

  2. Description of the Related Art Conventionally, a ventilator that is attached to a wall surface on the indoor side and ventilates by supplying and exhausting air between the outside of a building and the inside of the building is known (for example, see Patent Document 1). An air supply / exhaust port in which an air supply port and an exhaust port are partitioned is provided on the back surface of the ventilation device described in Patent Document 1. The air supply / exhaust port is connected to a wall hole provided in the wall using a connection pipe for air supply / exhaust.

Japanese Patent Laid-Open No. 2006-40501

  When the ventilation device described in Patent Document 1 is attached to the wall surface on the indoor side, there are cases where it is desired to connect the air supply / exhaust port of the ventilation device to an existing wall hole provided in the wall, for example, a hole for an air conditioner. However, since the position of the air supply / exhaust port is determined on the rear surface of the ventilator, it may be difficult to connect the air supply / exhaust port to the existing hole even if the position of the ventilation device attached to the wall is adjusted.

  An object of the present invention is to provide an air supply / exhaust structure of a ventilator including an attachment for air supply / exhaust that can easily connect an air supply / exhaust port of the ventilator to an existing hole provided in a wall, and a construction method thereof. .

  The present invention provides an air supply / exhaust attachment (for example, an air supply / exhaust attachment 7 described later) disposed between an indoor wall surface (for example, a wall surface Wa described later) and a ventilator (for example, a ventilator 1 described later). 7A) and a ventilation / supply / exhaust structure (for example, ventilation / supply / exhaust structure 6, 6A described later) of the ventilation apparatus, wherein the supply / exhaust attachment includes a supply / exhaust two-layer opening partitioned into two layers (for example, The air supply / exhaust air opening 101) described later is connected to the rear surface of the ventilator, and the air supply / exhaust gas bilayer opening is formed so as to change the flow direction of outside air and exhaust gas supplied to the ventilator. An inner / outer double tube (for example, a second inner / outer double tube 43 described later) having an inner tube (for example, a second inner tube 431, 831 described later) and an outer tube (for example, a second outer tube 432, 832 described later). , 83) For example, to supply exhaust structure of the ventilating device comprising a direction changing tubes 40, 80) to be described later.

  Further, on the back surface of the ventilator, the supply / exhaust two-layer opening penetrating the inside and the outside of the ventilator, and the supply / exhaust two-layer opening pass through an intake passage portion (for example, an upper supply port 101b described later). ) And an exhaust passage part (for example, a lower exhaust port 101a described later), and a device-side partition member (for example, a device side partition member 102 described later) are provided. An attachment-side connection portion (for example, attachment-side air supply / exhaust connection portions 30, 70 described later) attached to the back surface of the ventilation device, and the direction changing mechanism attached to the attachment-side connection portion, and the attachment-side connection portion Is an annular member (for example, an annular plate member 31 to be described later) in which an attachment side opening (for example, an attachment side air supply / exhaust opening 310, 710 to be described later) is formed. 1) and an attachment side partition member that divides the attachment side opening into an air supply passage portion (for example, air supply partition openings 311 and 711 described later) and an exhaust passage portion (for example, exhaust partition openings 312 and 712 described later). For example, a partition wall 34 and a partition double wall 75), which will be described later, and the direction changing mechanism intersects a penetration direction (for example, a penetration direction K, which will be described later) through which the supply / exhaust two-layer opening passes. It is preferable to include the inner and outer double pipes having an inner pipe and an outer pipe extending in the left-right direction X (described later, for example).

  In addition, the direction changing mechanism includes a rotating mechanism (for example, attachment side air supply / exhaust connection parts 30 and 70 and direction changing pipes 40 and 80 described later) for rotating the inner and outer double pipes with respect to the supply / exhaust double layer opening. It is preferable to provide.

  Moreover, it is preferable that the said inner pipe is piping for external air which supplies external air to the said ventilator, and the said outer pipe is piping for exhaust.

  Further, it further includes an extended double pipe connected to the inner and outer double pipes and having an extended inner pipe and an extended outer pipe, and at the end of the extended double pipe opposite to the inner and outer double pipes, It is preferable that the end portion of the extended inner pipe is disposed so as to protrude from the end portion of the extended outer pipe.

  Moreover, it is preferable that the said direction change mechanism is provided with a direction change pipe, and a heat insulating material is provided in part or all of the inner surface and / or outer surface of the said direction change pipe.

  Further, an extended inner pipe (for example, an outdoor-side extended inner pipe 651 and an extended inner pipe 91 described later) and an extended outer pipe (for example, an outdoor-side extended outer pipe 652 described later) are connected to the inner and outer double tubes. It is preferable that an extended double pipe (for example, extended double pipes 60 and 90 described later) having an outer pipe 92) is further provided, and the extended outer pipe is made of a heat insulating material.

  Further, the present invention provides an air supply / exhaust structure for constructing the air supply / exhaust attachment disposed between a wall surface on the indoor side and the ventilator, using the air supply / exhaust structure of the ventilator provided with the air supply / exhaust attachment. In the construction method, the wall surface is provided with a hole having a diameter different from that of the supply / exhaust gas double layer opening (for example, a wall hole Wb described later), and the supply / exhaust gas double layer opening and the wall surface The present invention relates to a construction method for an air supply / exhaust structure including a step of installing the air supply / exhaust attachment between holes.

  According to the present invention, there is provided a supply / exhaust structure of a ventilator provided with an attachment for supply / exhaust that can easily connect an intake / exhaust port of the ventilator to an existing hole provided in a wall, and a construction method of the supply / exhaust structure. be able to.

It is a figure which shows the use condition of the air supply / exhaust structure of the ventilation apparatus of 1st Embodiment. It is a perspective view which shows the structure of the ventilation apparatus of 1st Embodiment. It is a perspective view which shows the positional relationship of the ventilation apparatus of 1st Embodiment, and an air supply / exhaust structure. It is a perspective view which shows the structure of the back surface of a ventilator. It is a perspective view which shows the attachment for air supply / exhaust of 1st Embodiment. It is the disassembled perspective view which decomposed | disassembled and showed the attachment for exhaust_gas | exhaustion of 1st Embodiment. It is the disassembled perspective view which decomposed | disassembled and showed the attachment for air supply / exhaust of 1st Embodiment to the attachment side air supply / exhaust connection part and the direction change pipe | tube. It is a perspective view which shows the attachment side supply / exhaust connection part of the attachment for air supply / exhaust of 1st Embodiment, (a) is a perspective view, (b) is the BB sectional drawing of (a), (C) is CC sectional view taken on the line of (a). It is a disassembled perspective view which shows the state which decomposed | disassembled the air supply / exhaust structure of 1st Embodiment. It is the sectional view on the AA line of the attachment for exhaust_gas | exhaustion shown in FIG. It is a figure which shows the use condition of the air supply / exhaust structure of the ventilation apparatus of 2nd Embodiment. It is a perspective view which shows the positional relationship of the ventilation apparatus and 2nd air supply structure of 2nd Embodiment. It is a perspective view which shows the attachment for exhaust_gas | exhaustion of 2nd Embodiment. It is the disassembled perspective view which decomposed | disassembled and showed the attachment for air supply / exhaust of 2nd Embodiment to the attachment side air supply / exhaust connection part and the direction change pipe | tube. It is a perspective view which shows the attachment side supply / exhaust connection part of the attachment for air supply / exhaust of 2nd Embodiment. It is the DD sectional view taken on the line of the attachment for exhaust_gas | exhaustion shown in FIG.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
In the following description, the direction in which the device side air supply / exhaust opening 101 (see FIG. 4) provided on the back surface of the ventilation device 1 passes is defined as a penetration direction K. In this embodiment, the penetration direction K coincides with the direction in which the ventilation device 1 and the wall surface Wa are arranged. A horizontal direction that intersects the penetration direction K and is along the wall Wa on the indoor side is a left-right direction X. The left-right direction X is also the left-right direction of the ventilator 1 when the ventilator 1 is viewed from the front. Moreover, in the left-right direction X shown in FIGS. 1 and 11, one side with respect to the ventilator 1 is a first side X <b> 1 (the right front side of the paper surface in FIGS. 1 and 11), and the other side is with respect to the ventilator 1. The second side is X2 (the left back side of the paper surface in FIGS. 1 and 11). Also, the vertical direction along the vertical direction is defined as the vertical direction.

(First embodiment)
FIG. 1 is a diagram illustrating a usage state of the air supply / exhaust structure 6 of the ventilation device 1 according to the first embodiment.
As shown in FIG. 1, the ventilation apparatus 1 which concerns on 1st Embodiment is attached to the upper part etc. of the wall surface Wa of the wall W on the indoor side, and the outdoor and indoor of a building are provided via the air supply / exhaust structure 6 which concerns on this invention. It is a ventilator that ventilates air by supplying and exhausting air between them.
Details of the air supply / exhaust structure 6 will be described later.

FIG. 2 is a perspective view showing a configuration of the ventilation device 1 of the present embodiment. As shown in FIG. 2, the ventilator 1 includes a housing 10, an air supply path 20, an air supply blower 2, an exhaust path 25, an exhaust blower 3, a heat exchanger 5, and a bypass path 9. Prepare.
In addition, the ventilation device 1 includes an air supply filter 141, an exhaust filter 142, a damper 143, and a control device (not shown).

FIG. 3 is a perspective view showing the positional relationship between the ventilation device 1 and the air supply / exhaust structure 6 of the first embodiment. FIG. 4 is a perspective view showing the configuration of the back surface of the ventilation device.
The housing 10 is formed in a substantially rectangular parallelepiped shape as shown in FIG. The housing 10 accommodates each path and member to be described later. As shown in FIG. 4, the ventilator 1 opens at a device-side air supply / exhaust opening 101 (supply / exhaust two-layer opening) provided on the back surface of the housing 10. Thus, the back plate 11 is attached. The apparatus side air supply / exhaust opening 101 is partitioned into two layers by an apparatus side partition member 102 as shown in FIG. The device-side partition member 102 partitions the device-side air supply / exhaust opening 101 into a lower exhaust port 101a (exhaust passage portion) and an upper air supply port 101b (supply air passage portion). As shown in FIG. 3, the back plate 11 is arranged to face the wall surface Wa on the indoor side. On the upper end side of the first side X1 in the left-right direction X of the back plate 11, a back plate opening 11a is provided. The back plate opening 11 a communicates with the device side air supply / exhaust opening 101 in a state where the back plate 11 is attached to the back surface of the ventilation device 1. An air supply / exhaust attachment 7 of the air supply / exhaust structure 6 to be described later is connected to the peripheral edge of the back plate opening 11a in the back plate 11.

  As shown in FIG. 2, the air supply path 20 includes a back-side air supply port 21 arranged on the back side of the ventilation device 1 and a front-side air supply port 22 arranged on the front side of the ventilation device 1. tie. The front side air supply port 22 is located at the upper end of the front side of the housing 10, and the back side air supply port 21 communicates with the upper air supply port 101 b (see FIG. 4) of the device side air supply / exhaust opening 101.

  The exhaust path 25 connects a front-side exhaust port 26 disposed on the front side and a back-side exhaust port 27 disposed on the back side. The front side exhaust port 26 is located at the lower end of the front side of the housing 10, and the back side exhaust port 27 communicates with the lower exhaust port 101 a (see FIG. 4) of the apparatus side air supply / exhaust opening 101.

  The air supply blower 2 is disposed on the terminal end side of the air supply path 20 and sends outside air to the indoor side. The air supply blower 2 is disposed downstream of the heat exchanger 5 in the air supply path 20.

  The exhaust blower 3 is disposed on the end side of the exhaust path 25 and sends indoor air to the outdoor side. The exhaust blower 3 is disposed downstream of the heat exchanger 5 in the exhaust path 25.

  The heat exchanger 5 is disposed in the air supply path 20 and the exhaust path 25. The heat exchanger 5 performs heat exchange between the supply air SA that flows through the supply air path 20 and the exhaust gas EA that flows through the exhaust path 25.

  The heat exchanger 5 includes a supply air inlet 151 formed at an upper portion on one end side in the longitudinal direction, a supply air outlet 152 formed at a side surface on the other end side, and an exhaust inlet formed at a lower portion on the other end side. 153 and an exhaust outlet 154 formed on the side surface on one end side. The flow path connecting the air supply inlet 151 and the air supply outlet 152 in the heat exchanger 5 constitutes a part of the air supply path 20. Similarly, the flow path connecting the exhaust inlet 153 and the exhaust outlet 154 in the heat exchanger 5 constitutes a part of the exhaust path 25. Thereby, the flow of the supply air in the supply air path 20 and the flow of the exhaust gas in the exhaust path 25 are opposed to each other.

  The bypass path 9 connects a bypass inlet 9a positioned upstream of the exhaust filter 142 in the exhaust path 25 and a bypass outlet 9b positioned downstream of the heat exchanger 5 in the exhaust path 25. The bypass path 9 bypasses the exhaust EA without circulating it to the heat exchanger 5 when removing the collected dust from the exhaust filter 142.

The air supply filter 141 is disposed in the vicinity of the rear side air supply port 21 upstream of the heat exchanger 5 in the air supply path 20. The air supply filter 141 collects dust contained in the air supply SA.
The exhaust filter 142 is disposed in the vicinity of the front exhaust port 26 on the upstream side of the heat exchanger 5 in the exhaust path 25. The exhaust filter 142 collects dust contained in the exhaust EA.
The damper 143 switches between exhaust through the heat exchanger 5 and exhaust through the bypass path 9.

  Next, the air supply / exhaust structure 6 of the ventilator 1 will be described. FIG. 5 is a perspective view showing the air supply / exhaust attachment 7 of the first embodiment. FIG. 6 is an exploded perspective view showing the air supply / exhaust attachment 7 according to the first embodiment in an exploded manner. FIG. 7 is an exploded perspective view showing the attachment / exhaust attachment 7 according to the first embodiment in an exploded manner, showing an attachment-side supply / exhaust connection portion 30 and a direction change pipe 40. FIGS. 8A and 8B are perspective views showing the attachment-side air supply / exhaust connection portion 30 of the air supply / exhaust attachment 7 according to the first embodiment, wherein FIG. 8A is a perspective view, and FIG. It is line sectional drawing, (c) is CC sectional view taken on the line of (a). FIG. 9 is an exploded perspective view showing a state where the air supply / exhaust structure 6 of the first embodiment is disassembled. 10 is a cross-sectional view of the air supply / exhaust attachment 7 shown in FIG.

  As shown in FIGS. 3 and 4, the air supply / exhaust structure 6 of the ventilator 1 is connected to the peripheral edge of the back plate opening 11 a in the back plate 11 of the ventilator 1, and the back plate 11 is attached to the back of the ventilator 1. Is attached to the back surface of the ventilation device 1. The air supply / exhaust structure 6 of the ventilator 1 includes an air supply / exhaust attachment 7 and an extended double pipe 60 (see FIG. 1), as shown in FIGS.

As shown in FIG. 1, the air supply / exhaust attachment 7 is disposed between the wall surface Wa on the indoor side and the ventilation device 1.
As shown in FIGS. 5 to 8, the air supply / exhaust attachment 7 includes an attachment side air supply / exhaust connection portion 30 (attachment side connection portion), a direction changing tube 40 (direction changing mechanism), an airtight member 51, and a connecting portion. An inner surface side heat insulating material 52, a side plate inner surface side circular heat insulating material 53, a side surface plate inner surface side annular heat insulating material 54, and three inner peripheral surface arc-shaped heat insulating materials 55 are provided. The direction change pipe 40 is attached to the attachment side air supply / exhaust connection part 30 in a state where the attachment side air supply / exhaust connection part 30 and the direction change pipe 40 can rotate with each other in the connected state.

  As shown in FIG. 3, the attachment-side air supply / exhaust connection portion 30 is attached to the peripheral edge of the back plate opening 11 a provided on the back plate 11 on the back surface of the ventilation device 1. As shown in FIGS. 7 and 8, the attachment-side air supply / exhaust connection portion 30 includes an annular plate member 31 (annular member), an outer peripheral double wall 32, an inner peripheral extending wall 33, and a partition wall 34 (attachment side). Partition member), an inner edge semicircular arc wall portion 35, a semicircular disc portion 36, and an extended inner peripheral wall portion 37.

  As shown in FIGS. 7 and 8, the annular plate member 31 is formed in an annular plate shape in which an attachment side air supply / exhaust opening 310 (attachment side opening) is formed at the center. The annular plate member 31 is formed with a width of a predetermined length in the radial direction, and is arranged in parallel with the wall surface Wa.

The outer peripheral double wall 32 extends to the wall surface Wa side from the outer peripheral edge of the surface of the annular plate member 31 on the wall surface Wa side. The outer peripheral double wall 32 is formed over the entire circumference of the annular plate member 31. As illustrated in FIG. 8, the outer peripheral double wall 32 includes a first outer peripheral wall portion 321 and a second outer peripheral wall portion 322. The first outer peripheral wall portion 321 and the second outer peripheral wall portion 322 are each formed in a cylindrical shape. The first outer peripheral wall portion 321 and the second outer peripheral wall portion 322 are arranged in a double manner in a state where the first outer peripheral wall portion 321 is arranged on the outside, and constitute a double outer peripheral wall. The height of the second outer peripheral wall portion 322 from the annular plate member 31 is formed higher than the height of the first outer peripheral wall portion 321 from the annular plate member 31.
The outer peripheral double wall 32 is rotatably locked to an end portion 422b of a first inner / outer double tube 42 of the direction changing tube 40 described later in a state where the direction changing tube 40 is attached to the attachment-side supply / exhaust connection portion 30. The

  The inner peripheral extending wall 33 extends from the inner peripheral edge of the annular plate member 31 with a predetermined width inward in the radial direction of the annular plate member 31 in parallel with the wall surface Wa. The surface of the inner peripheral extension wall 33 is formed so as to be recessed from the surface of the annular plate member 31 to the inner side. The inner peripheral extension wall 33 is formed over the entire circumference of the annular plate member 31.

  The partition wall 34 partitions the attachment side air supply / exhaust opening 310 of the annular plate member 31 at a substantially central position. The partition wall 34 passes through the center of the attachment-side air supply / exhaust opening 310 and extends in the radial direction. The surface of the partition wall 34 is formed to be recessed from the surface of the annular plate member 31 toward the inside, and is located on the same plane as the surface of the inner peripheral extension wall 33.

  The partition wall 34 partitions the attachment-side air supply / exhaust opening 310 into an air supply partition opening 311 (supply air passage portion) through which the supply air SA passes and an exhaust air partition opening 312 (exhaust passage portion) through which the exhaust EA passes. Thus, an air supply partition opening 311 through which the supply air SA passes is formed by the semicircular portion on one side of the attachment side air supply / exhaust opening 310, and the exhaust EA passes by the semicircular portion on the other side of the attachment side air supply / exhaust opening 310. An exhaust partition opening 312 is configured.

  As shown in FIG. 7, the partition wall 34 is provided on the back surface of the ventilator 1 with an airtight member 51 (described later) sandwiched between the air supply / exhaust attachment 7 attached to the back plate 11 on the back surface of the ventilator 1. The device side partition member 102 (see FIG. 4) is disposed opposite to the device side partition member 102 (see FIG. 4).

The inner edge semicircular arc wall portion 35 is formed in a semi-cylindrical wall shape and extends in the penetration direction K.
Both end portions in the circumferential direction of the inner edge semicircular arc wall portion 35 are respectively connected to both end portions in the radial direction of the partition wall 34. A portion surrounded by the inner edge semicircular arc wall portion 35 and the partition wall 34 is formed in a semicircular shape extending in the penetrating direction K, and constitutes the air supply partition opening 311 described above. The air supply partition opening 311 communicates with a first inner tube 421 of a first inner / outer double tube 42 of a direction changing tube 40 described later.

  The semi-disc portion 36 is formed in a semi-disc shape, and is disposed on the wall W side in the penetrating direction K in the exhaust partition opening 312 of the annular plate member 31. The semi-disc portion 36 extends in parallel with the wall surface Wa along the wall surface Wa from the end of the partition wall 34 on the wall surface Wa side in the penetration direction K. The semicircular disk portion 77 is formed to have substantially the same size as the exhaust partition opening 312 when viewed in the penetration direction K. The outer peripheral edge of the semicircular plate portion 36 is formed in a semicircular arc shape that is substantially the same as the inner peripheral edge of the annular plate member 31 that forms the attachment-side air supply / exhaust opening 310.

  As shown in FIGS. 8A to 8C, the surface of the semi-disc portion 36 is formed to be inclined. As shown in FIG. 8B, the surface of the semicircular disk portion 36 extends from the annular plate member 31 toward the edge side from the radial center of the partition wall 34 in the direction in which the partition wall 34 extends. Inclined to leave. Further, as shown in FIG. 8C, the surface of the semicircular disc portion 36 is connected with a gentle curved surface from the partition wall 34 in a direction orthogonal to the direction in which the partition wall 34 extends. As it leaves, it inclines so that it may leave | separate from the annular plate member 31. FIG.

Between the inner peripheral edge of the annular plate member 31 and the outer peripheral edge of the semicircular disk part 36, an outer pipe communication part 313 having a width in the penetration direction K and opening in the radial direction is formed. The outer pipe communication portion 313 communicates from the space on the ventilation device 1 side of the semicircular disc portion 36 to the outside in the radial direction.
In a state where the direction change pipe 40 is attached to the attachment-side air supply / exhaust connection portion 30, the exhaust EA circulated through the exhaust partition opening 312 of the annular plate member 31 passes through the outer pipe communication portion 313 or a semi-disc. After reaching the part 36, it flows through the outer pipe communication part 313 to the first outer pipe 422 of the first inner / outer double pipe 42 of the direction changing pipe 40 described later.

  As shown in FIG. 8A, the extended inner peripheral wall portion 37 is formed in a cylindrical shape, from the end on the wall W side of the inner semicircular arc wall portion 35 and the outer peripheral edge of the arc portion of the semicircular disc portion 36. It extends to the wall surface Wa side. In the state where the direction change pipe 40 is attached to the attachment-side air supply / exhaust connection part 30, as shown in FIG. 10, the extended inner peripheral wall part 37 is the first of the first inner and outer double pipes 42 of the direction change pipe 40 described later. It arrange | positions along the internal peripheral surface of the edge part 421b by the side of the ventilation apparatus 1 of the inner tube | pipe 421. FIG. The extended inner peripheral wall portion 37 is rotatably locked to an end portion 421b of a first inner / outer double tube 42 of the direction changing tube 40 described later in a state where the direction changing tube 40 is attached to the attachment side air supply / exhaust connection portion 30. Is done.

  Further, as shown in FIG. 6, an airtight member 51 and a connection portion inner surface side heat insulating material 52 are attached to the attachment side air supply / exhaust connection portion 30. The connection part inner surface side heat insulating material 52 is comprised with heat insulating materials, such as a polystyrene foam, for example.

  The airtight member 51 is disposed on the surface of the inner peripheral extension wall 33 and the partition wall 34 of the attachment side air supply / exhaust connection portion 30 on the outer side of the attachment side air supply / exhaust connection portion 30. The airtight member 51 includes an annular airtight portion 51b formed in an annular shape, and an airtight partition portion 51a that partitions the annular airtight portion 51b in substantially half. The airtight member 51 is attached to the attachment-side air supply / exhaust connection portion 30 and the ventilator 1 when the attachment-side air supply / exhaust connection portion 30 is attached to the periphery of the back plate opening 11a of the back plate 11 provided on the back surface of the ventilator 1. It is disposed between the peripheral edge of the apparatus side air supply / exhaust opening 101 and ensures airtightness between the attachment side air supply / exhaust connection part 30 and the peripheral edge of the apparatus side air supply / exhaust opening 101 in the ventilation device 1.

  The connection portion inner surface side heat insulating material 52 is formed in a substantially annular shape having an opening that avoids the attachment side air supply / exhaust opening 310, and is attached to the inner surface of the annular plate member 31. The connecting portion inner surface side heat insulating material 52 ensures heat insulating properties on the inner surface of the annular plate member 31. Thereby, it can reduce that dew condensation water adheres to the outer surface of the annular plate member 31.

  As shown in FIG. 9, the attachment-side supply / exhaust connection portion 30 configured as described above has an annular plate member 31 connected to the back plate 11 of the ventilator 1 by screws 501, and the annular plate member 31 is connected. The attached back plate 11 is attached to the back surface of the ventilator 1 so that the airtight member 51 is pressed and connected to the periphery of the back plate opening 11 a of the back plate 11 provided on the back surface of the ventilator 1.

  As shown in FIGS. 5 and 6, the direction change pipe 40 is rotatably attached to the attachment-side air supply / exhaust connection portion 30 by three substantially U-shaped fasteners 56.

  As shown in FIG. 5, the three fasteners 56 are spaced apart in the circumferential direction on the outer peripheral edge of the attachment-side air supply / exhaust connection portion 30 and are arranged at three locations. The three fasteners 56 are respectively disposed so as to sandwich the locking portion 422d formed on the end portion 422b of the first inner / outer double tube 42 of the direction changing tube 40 and the outer peripheral portion of the annular plate member 31. . The locking portion 422d is configured by an end surface on the attachment side air supply / exhaust connection portion 30 side of a groove 422c extending in the axial direction on the peripheral surface of the first outer tube 422. The concave groove 422c is formed on the peripheral surface of the first outer tube 422 so as to extend in the axial direction from the circular side plate 41 side to the front of the end portion 422b of the first inner / outer double tube 42.

  As shown in FIGS. 5 and 6, the clasp 56 is formed in a substantially U shape, and is fixed to the locking portion 422 d of the direction change tube 40 by a screw 501 in one piece on the direction change tube 40 side. In the other piece, it is arranged to face the peripheral surface of the annular plate member 31 of the attachment-side air supply / exhaust connection portion 30. Accordingly, the clasp 56 restricts the position of the annular plate member 31 so that the annular plate member 31 rotates with respect to the direction changing tube 40 and the annular plate member 31 does not come off the direction changing tube 40. To do.

  The direction change pipe 40 converts the direction in which the outside air OA flows between the ventilator 1 and the wall hole Wb (hole) of the wall W from the left-right direction X to the penetration direction K and the direction in which the exhaust EA flows. From the penetrating direction K to the left-right direction X.

  As shown in FIG. 7, the direction changing tube 40 includes a first inner / outer double tube 42, a circular side plate 41 that closes an end of the first inner / outer double tube 42 on the wall surface Wa side, and a first inner / outer double tube. And a second inner / outer double pipe 43 (double pipe) connected to 42. The direction change pipe 40 converts the device side air supply / exhaust opening 101 of the ventilator 1 into the inner / outer double pipe 43 so as to change the flow direction of the outside air OA and the exhaust EA supplied to the ventilator 1.

  The first inner / outer double tube 42 includes a first inner tube 421 and a first outer tube 422. The first inner pipe 421 and the first outer pipe 422 are each formed in a substantially cylindrical shape, and extend in the penetration direction K through which the apparatus-side air supply / exhaust opening 101 provided on the back surface of the ventilation device 1 passes. The first outer tube 422 is formed in a cylindrical shape having a larger diameter than the first inner tube 421. The first outer tube 422 is disposed outside the first inner tube 421 so as to be separated from the first inner tube 421. The first inner tube 421 and the first outer tube 422 are arranged concentrically and have a double tube structure.

  The space on the inner side of the first inner pipe 421 communicates with the air supply partition opening 311 of the attachment side air supply / exhaust connection part 30 in a state where the direction changing pipe 40 is attached to the attachment side air supply / exhaust connection part 30. Outside air OA circulates in the space inside the first inner pipe 421, and the first inner pipe 421 constitutes a pipe for outside air that supplies the outside air OA to the ventilator 1.

  The space between the first outer pipe 422 and the first inner pipe 421 is formed in the outer pipe communication portion 313 of the attachment side air supply / exhaust connection portion 30 in a state where the direction changing pipe 40 is attached to the attachment side air supply / exhaust connection portion 30. Communicate. The exhaust EA flows through the space between the first outer pipe 422 and the first inner pipe 421, and the first outer pipe 422 constitutes a pipe for exhaust.

  The length of the first inner pipe 421 in the penetration direction K is shorter than the length of the first outer pipe 422 in the penetration direction K. The end portion on the wall surface Wa side of the first inner tube 421 and the end portion on the wall surface Wa side of the first outer tube 422 are arranged at the same position in the penetration direction K. The end of the first inner pipe 421 on the side of the ventilation device 1 is disposed closer to the wall surface Wa than the end of the first outer pipe 422.

  The end of the first inner tube 421 on the wall surface Wa side and the end of the first outer tube 422 on the wall surface Wa side are connected to the circular side plate 41. The circular side plate 41 is formed in a disc shape having a diameter substantially the same as the diameter of the first outer tube 422, and the first inner tube 421 and the first outer tube 422 are connected to the first inner tube 421 and the first outer tube 422. The tube 422 is closed on the end side on the wall surface Wa side.

  As shown in FIG. 7, the outer surface of the first inner tube 421 on the side of the circular side plate 41 and the inner surface of the circular side plate 41 are connected by a connecting member 44. In the present embodiment, by providing the connection member 44 that connects the outer surface of the first inner tube 421 on the side of the circular side plate 41 and the inner surface of the circular side plate 41, the direction changing tube 40 is produced when the direction changing tube 40 is manufactured. Can be integrally molded. For example, when the direction change pipe 40 is composed of two or more members, the connection member 44 may not be provided.

A circular inner pipe communication hole 421a is formed through the side portion of the first inner pipe 421.
A circular outer tube communication hole 422a is formed through the side portion of the first outer tube 422 on the same side as the inner tube communication hole 421a of the first inner tube 421. The outer pipe communication hole 422a is formed with a larger diameter than the inner pipe communication hole 421a.

  Three concave grooves 422c extending in the axial direction are provided on the outer peripheral surface of the first outer tube 422 so as to be spaced apart in the circumferential direction. The concave groove 422c is recessed inward from the outer peripheral surface of the first outer tube 422, and protrudes inward from the inner peripheral surface of the first outer tube 422. The concave groove 422c extends in the axial direction from the side of the circular side plate 41 to the front of the end 422b of the first inner / outer double tube 42. A locking portion 422d is formed on the end surface of the concave groove 422c on the attachment side air supply / exhaust connection portion 30 side.

  The second inner / outer double tube 43 includes a second inner tube 431 and a second outer tube 432. The second inner tube 431 and the second outer tube 432 are each formed in a cylindrical shape and extend in the left-right direction X (direction intersecting the penetration direction K). The second inner tube 431 and the second outer tube 432 are arranged concentrically and have a double tube structure.

  The second inner pipe 431 passes through the outer pipe communication hole 422a from the peripheral edge of the inner pipe communication hole 421a on the outer surface of the first inner pipe 421, and toward the outside of the direction change pipe 40 in the left-right direction X (through Extends in the second direction X2 in the direction intersecting the direction K).

  The second outer tube 432 extends from the peripheral edge of the outer tube communication hole 422a on the outer surface of the first outer tube 422 to the second side X2 in the left-right direction X (direction intersecting the penetration direction K). The second outer tube 432 is formed in a cylindrical shape having a larger diameter than the second inner tube 431. The second outer tube 432 is disposed outside the second inner tube 431 while being separated from the second inner tube 431.

  The space on the inner side of the second inner tube 431 communicates with the space on the inner side of the first inner tube 421. Further, the second inner pipe 431 is connected to the air supply partition opening 311 of the attachment side air supply / exhaust connection part 30 via the first inner pipe 421 in a state where the direction changing pipe 40 is attached to the attachment side air supply / exhaust connection part 30. Communicate. The second inner pipe 431 constitutes a pipe for outside air that supplies the outside air OA to the ventilation device 1. The flow direction of the outside air OA flowing from the second inner pipe 431 toward the first inner pipe 421 is converted from the left-right direction X to the penetration direction K.

  A space between the second outer tube 432 and the second inner tube 431 communicates with a space between the first outer tube 422 and the first inner tube 421. The space between the second outer pipe 432 and the second inner pipe 431 is the same as that of the first outer pipe 422 and the first inner pipe 421 when the direction changing pipe 40 is attached to the attachment-side air supply / exhaust connection portion 30. The space communicates with the outer pipe communication portion 313 of the attachment-side air supply / exhaust connection portion 30, and further communicates with the exhaust partition opening 312 of the attachment-side air supply / exhaust connection portion 30. The second outer pipe 432 constitutes an exhaust pipe. The flow direction of the exhaust gas EA flowing from the first outer tube 422 toward the second outer tube 432 is converted from the penetration direction K to the left-right direction X.

  A flange portion 832 a is formed on the outer peripheral surface of the second outer tube 432. The flange portion 432 a is formed to protrude from the outer peripheral surface of the second outer tube 432.

  Further, inside the direction change pipe 40, as shown in FIG. 6, the side plate inner surface side circular heat insulating material 53, the side surface plate inner surface side annular heat insulating material 54, three inner peripheral surface arc-shaped heat insulating materials 55, Is attached. The side plate inner surface side circular heat insulating material 53, the side surface plate inner surface side annular heat insulating material 54, and the three inner circumferential surface arc heat insulating materials 55 are made of a heat insulating material such as polystyrene foam.

The side plate inner surface side circular heat insulating material 53 is formed of a circular plate material. The side plate inner surface side circular heat insulating material 53 is attached to the inner surface of the circular side plate 41 inside the first inner tube 421.
The side plate inner surface side annular heat insulating material 54 is formed of a substantially C-shaped annular plate material so as to avoid a portion through which the second inner tube 431 passes. The side plate inner surface side annular heat insulating material 54 is attached to the inner surface of the circular side plate 41 between the first outer tube 422 and the first inner tube 421.
In addition, the side plate inner surface side circular heat insulating material 53 and the side plate inner surface side annular heat insulating material 54 are arranged on the inner surface of the circular side surface plate 41. Here, on the outer surface of the circular side plate 41, heat from the first inner tube 421 is transmitted in the annular portion where the circular side plate 41 and the end of the first inner tube 421 are connected, and the circular side plate 41. Condensed water may adhere to the outer surface of the. Therefore, for example, a heat insulating material may be disposed on the outer surface of the circular side plate 41. In this case, it can reduce that dew condensation water adheres to the outer surface of the circular side plate 41.

The three inner peripheral surface arc-shaped heat insulating materials 55 are formed of an arc-shaped plate material. The three inner peripheral surface arc-shaped heat insulating materials 55 are continuously arranged along the inner peripheral surface of the first outer tube 422.
The side plate inner surface side circular heat insulating material 53, the side surface plate inner surface side annular heat insulating material 54, and the three inner peripheral surface arc-shaped heat insulating materials 55 are arranged on the inner surface of the first outer tube 422, so that the first outer tube Heat insulation is ensured inside 422. Thereby, it can reduce that dew condensation water adheres to the outer surface of the 1st outer pipe 422.

  In the attachment-side air supply / exhaust connection portion 30 and the direction change pipe 40 configured as described above, as shown in FIG. 10, the extension-side inner wall portion 37 of the attachment-side air supply / exhaust connection portion 30 has the first The end portion 421b of the first inner / outer double tube 42 is rotatably attached, and the first inner / outer double tube of the direction changing tube 40 is placed on the outer peripheral double wall 32 of the annular plate member 31 of the attachment-side air supply / exhaust connection portion 30. The end portions 422b of 42 are rotatably attached, so that they can be rotated with respect to each other. That is, the attachment-side air supply / exhaust connection portion 30 and the direction change pipe 40 constitute a rotation mechanism that rotates the second inner / outer double pipe 43 of the direction change pipe 40 with respect to the device-side air supply / exhaust opening 101 of the ventilation device 1. . Thereby, corresponding to the position where the wall hole Wb of the wall W mentioned later is provided, the direction of the piping between the ventilator 1 and the wall hole Wb is changed from the penetration direction K to the left-right direction X intersecting the penetration direction K. Can be converted to Therefore, the direction of the apparatus side air supply / exhaust opening 101 provided on the back surface of the ventilation device 1 can be easily changed from the penetration direction K to the direction intersecting the penetration direction K. In addition, the attachment-side supply / exhaust connection portion 30 of the supply / exhaust attachment 7 is rotated in accordance with the direction in which the device-side partition member 102 on the back of the ventilator 1 extends, so that the supply / exhaust is provided on the back of the ventilator 1. The attachment 7 can be easily attached.

  As shown in FIGS. 1 and 9, the extended double pipe 60 is connected to the second inner / outer double pipe 43 of the direction changing pipe 40 of the air supply / exhaust attachment 7. As shown in FIG. 1, the extended double pipe 60 extends from the indoor to the outdoor via the wall hole Wb of the wall W from the air supply / exhaust attachment 7.

  As shown in FIGS. 1 and 9, the extended double pipe 60 includes an indoor-side extended double pipe 61, a first connecting member 62, a bent double pipe 63, a second connecting member 64, An outer extending double pipe 65.

The indoor side extending double pipe 61 is disposed indoors along the wall surface Wa.
As shown in FIG. 9, the indoor-side extended double pipe 61 includes an indoor-side extended inner pipe 611 disposed inside and an indoor-side extended outer pipe 612 disposed outside the indoor-side extended inner pipe 611. And having. The indoor side extended double pipe 61 has a double pipe structure with an indoor side extended inner pipe 611 and an indoor side extended outer pipe 612. The indoor side extended double pipe 61 is connected to the second inner / outer double pipe 43 of the direction changing pipe 40 of the air supply / exhaust attachment 7 on the first side X1, and via the first connecting member 62 on the second side X2. Connected to the bent double tube 63.

The indoor side extending inner pipe 611 is made of, for example, vinyl chloride.
The indoor side extended outer pipe 612 is made of a heat insulating material such as polystyrene foam, for example, and has both a function of circulating air inside and a function as a heat insulating material.

  Moreover, the indoor side extended outer pipe 612 is formed by being divided in the radial direction. Specifically, the indoor-side extended outer pipe 612 is configured by two semicircular arc-shaped indoor-side extended outer pipe semicircular members 612a and 612b cut in a semicircular shape along the axial direction. Thereby, at the time of construction of the indoor side extended double pipe 61, after the indoor side extended inner pipe 611 is arranged, the two indoor side extended outer pipe semicircular members 612a and 612b are covered, so that the indoor side extended second pipe 611 is covered. Since the heavy pipe 61 can be constructed, the construction is easy.

  The bent double tube 63 is disposed so as to penetrate through the wall hole Wb of the wall W and is bent indoors. The bent double tube 63 includes a bent inner tube 631 disposed inside and a bent outer tube 632 disposed outside the bent inner tube 631. The bent double tube 63 has a double tube structure with a bent inner tube 631 and a bent outer tube 632. The extended double tube 90 is connected to the indoor-side extended double tube 61 via the first connecting member 62 on the indoor side, bent toward the wall W side in the middle of the indoor side, and the wall of the wall W in the middle It is arranged to penetrate through the hole Wb, and is connected to the outdoor-side extended double pipe 65 via the second connecting member 64 on the outdoor side.

The bent inner tube 631 is made of, for example, vinyl chloride.
The bent outer tube 632 is made of, for example, a heat insulating material such as polystyrene foam, and has both a function of circulating air inside and a function as a heat insulating material.

  The bent inner tube 631 is formed by being divided in the radial direction. Specifically, the bent inner tube 631 is configured by semicircular arc-shaped bent inner tube semicircular members 632a and 632b in two cross-sectional views cut in a semicircular shape along the axial direction. As a result, since the bent double pipe 63 can be constructed by covering the two bent inner pipe semicircular members 632a and 632b after the bent inner pipe 631 is disposed during the construction of the bent inner pipe 631, the construction is easy. is there.

The outdoor-side extending double pipe 65 extends horizontally from the bent inner pipe 631 by a predetermined length, bends downward from an end portion extending horizontally by a predetermined length, and extends downward along the wall W. The outdoor-side extended double pipe 65 includes an outdoor-side extended inner pipe 651 (extended inner pipe) disposed inside and an outdoor-side extended outer pipe 652 (outside of the outdoor-side extended inner pipe 651 ( And an extended outer tube). The outdoor-side extended double pipe 65 has a double-pipe structure with an outdoor-side extended inner pipe 651 and an outdoor-side extended outer pipe 652.
As shown in FIG. 1, the outdoor-side extended double pipe 65 has an end on the outdoor side that opens downward. The outdoor side extended inner pipe 651 and the outdoor side extended outer pipe 652 are made of, for example, vinyl chloride.

The first connecting member 62 connects the indoor side extending double pipe 61 and the bent double pipe 63.
The first connecting member 62 includes a connecting inner tube 621, a connecting outer tube 623, and a connecting portion 622 that connects the connecting inner tube 621 and the connecting outer tube 623. The connecting inner tube 621 and the connecting outer tube 623 are arranged concentrically.

The second connecting member 64 connects the bent double pipe 63 and the outdoor-side extended double pipe 65.
The second connecting member 64 includes a connecting inner tube 641, a connecting outer tube 633, and a connecting portion 642 that connects the connecting inner tube 641 and the connecting outer tube 643. The connecting inner tube 641 and the connecting outer tube 643 are arranged concentrically.

  In the indoor-side extended double pipe 61, the bent double pipe 63, and the outdoor-side extended double pipe 65 configured as described above, the indoor-side extended inner pipe 611, the bent inner pipe 631, and the outdoor-side extended inside Outside air OA is circulated through the pipe 651. That is, the indoor side extended inner pipe 611, the bent inner pipe 631, and the outdoor side extended inner pipe 651 are pipes for the outside air that supplies the outside air OA to the ventilator 1. Further, the exhaust EA is circulated through the indoor-side extended outer pipe 612, the bent outer pipe 632, and the outdoor-side extended outer pipe 652. That is, the indoor side extended outer pipe 612, the bent outer pipe 632, and the outdoor side extended outer pipe 652 are exhaust pipes.

  At the end of the outdoor side extended double pipe 65 opposite to the second inner / outer double pipe 43 of the direction change pipe 40 of the air supply / exhaust attachment 7, as shown in FIG. The outdoor side end portion is disposed at a position protruding from the outdoor side end portion of the outdoor side extending outer tube 652. Thereby, the exhaust EA discharged from the end portion of the outdoor-side extended outer pipe 652 is reduced from being sucked from the end portion of the outdoor-side extended inner pipe 651.

  Here, the wall hole Wb of the existing wall W is, for example, a hole for an air conditioner provided when an air conditioner is installed, and may be smaller than the diameter of the device side air supply / exhaust opening 101 of the ventilator 1. is there. In the present embodiment, for example, the diameter of the wall hole Wb of the wall W is 65 mm, and the diameter of the device side air supply / exhaust opening 101 of the ventilation device 1 in the present embodiment is 100 mm.

  By the way, in the ventilation apparatus 1, in order to improve ventilation efficiency, the magnitude | size of the diameter of the apparatus side air supply / exhaust opening 101 is set. The diameter of the device-side air supply / exhaust opening 101 is set to a size that can exhibit the ventilation performance of the ventilation device 1. The size of the diameter of the apparatus side air supply / exhaust opening 101 tends to depend on the size (capacity) of the ventilator 1, and the larger the size of the ventilator 1, the larger the diameter of the apparatus side air supply / exhaust opening 101 is. It is set.

  Here, for example, when the diameter of the existing wall hole Wb is smaller than the diameter of the apparatus-side air supply / exhaust opening 101 of the ventilation device 1, the apparatus has the same diameter as the diameter of the existing wall hole Wb. When a ventilator having a side air supply / exhaust opening is selected, the size (capacity) of the ventilator becomes small, and a ventilator with low ventilation performance has to be installed. Moreover, if the diameter of the apparatus side air supply / exhaust opening is changed to be small in accordance with the diameter of the existing wall hole Wb, the ventilation efficiency of the ventilator is lowered even if the size (capacity) of the ventilator is large. . In addition, when a wall hole having the same diameter as the diameter of the apparatus side air supply / exhaust opening is used, the existing wall hole Wb cannot be used. The need to provide holes arises.

  In contrast, in the present invention, the air supply / exhaust attachment 7 is disposed between the ventilation device 1 and the wall surface Wa. The air supply / exhaust attachment 7 includes a second inner / outer double pipe 43 extending in the left-right direction X intersecting the penetrating direction K of the apparatus side air supply / exhaust opening 101 of the ventilator 1. Thus, the air supply / exhaust attachment 7 is disposed between the ventilation device 1 and the wall surface Wa, and the direction of the supplied external air OA is changed from the penetration direction K to the left / right direction by the direction changing tube 40 of the air supply / exhaust attachment 7. By converting to X and changing the direction of the exhaust EA from the left-right direction X to the penetration direction K, the existing wall hole Wb can be used as it is. Further, since the second inner / outer double tube 43 has a concentric double tube structure, the diameter can be easily changed. Therefore, the ventilator 1 can be installed without changing the size of the diameter of the device-side air supply / exhaust opening 101 of the ventilator 1. Thereby, the ventilation apparatus 1 can be easily installed using the existing wall hole Wb without reducing the ventilation efficiency of the ventilation apparatus 1.

  Further, in the present invention, the air supply / exhaust attachment 7 has a device-side air supply / exhaust opening 101 partitioned into a lower exhaust port 101a and an upper air supply port 101b on the back surface of the ventilator 1, and a second inner / outer double pipe. It has been changed to 43. Thereby, the air supply / exhaust structure 6 of the ventilator 1 uses a double pipe on the wall W side changed to the second internal / external double pipe 43 when piping from the indoor side to the outdoor side. Can do. Here, the inner / outer double pipe is composed of an inner pipe and an outer pipe, and has a simple structure that is simply configured as a concentric double pipe rather than a partition pipe of a type for partitioning the pipe. cheap. Also, the inner and outer double pipes are simply concentric double pipes when piped from the indoor side to the outdoor side, so bending is easy and piping to the wall hole Wb is possible. Easy to do.

  Therefore, using the air supply / exhaust attachment 7, the apparatus side air supply / exhaust opening 101 (two layers of openings divided vertically), which is divided into the lower exhaust port 101 a and the upper air supply port 101 b on the rear surface of the ventilator 1. The manufacturing cost can be reduced by changing the lower exhaust port 101a and the upper air supply port 101b) to the inner and outer double pipes on the wall W side. Moreover, since the inner and outer double pipes are easily bent, the workability can be improved.

Next, the construction method of the air supply / exhaust structure 6 of the ventilator 1 will be described.
When constructing the air supply / exhaust structure 6 of the ventilator 1, as shown in FIG. 9, first, the attachment side air supply / exhaust connection portion 30 is attached to the back plate 11 before attaching the back plate 11 to the back of the ventilator 1. Connecting. Specifically, the annular plate member 31 is fixed to the edge of the back plate opening 11 a of the back plate 11 with screws 502.

  Subsequently, the direction changing tube 40 is attached to the annular plate member 31. In this case, in a state where the direction change pipe 40 is attached to the attachment side air supply / exhaust connection part 30, the substantially U-shaped fastener 56 is attached to the periphery of the attachment side air supply / exhaust connection part 30 and the locking part of the direction change pipe 40. The fastener 56 is fixed to the locking portion 422d of the direction change tube 40 with a screw 501 by being fitted to 422d. Thereby, the direction change pipe | tube 40 is attached in the state which can be rotated with respect to the annular ring member 31. FIG.

Next, the indoor side extended inner pipe 611 and the bent inner pipe 631 of the extended double pipe 60 are attached to the direction changing pipe 40. The indoor side extending inner pipe 611 and the bent inner pipe 631 are attached to the second inner pipe 431 of the second inner / outer double pipe 43 of the direction changing pipe 40 via the first connecting member 62 and the second connecting member 64.
Thereafter, the indoor-side extended outer tube 612 and the bent outer tube 632 are attached to the second outer tube 432 of the second inner / outer double tube 43 of the direction changing tube 40 via the first connecting member 62 and the second connecting member 64. .
Here, the indoor-side extended outer tube 612 and the bent outer tube 632 are divided in half so as to be separated in the radial direction, so that the workability of attaching is easy.

  Then, the mounting stay 57 is attached to the back surface of the back plate 11 with screws 503. The mounting stay 57 is formed in a substantially C-shaped cross section, and when the air supply / exhaust attachment 7 is disposed between the wall W and the ventilator 1, a space in which the air supply / exhaust attachment 7 is disposed is secured. Used to do.

Subsequently, the ventilation device 1 is attached to the front side of the back plate 11.
Then, by attaching the mounting stay 57 to the wall W, the air supply / exhaust attachment 7 is disposed between the ventilator 1 and the wall W, and the air supply / exhaust attachment 7 is connected to the apparatus side air supply / exhaust opening 101 of the ventilator 1. Installed between (supply / exhaust two-layer opening) and wall hole Wb (hole) of wall surface Wa.
Here, for example, when attaching the mounting stay 57 to the wall W with a screw, a template sheet in which the screw attachment position is entered in advance may be used. The screw attachment position can be set in advance based on, for example, the relationship between the wall hole Wb of the wall surface Wa and the position of the apparatus side air supply / exhaust opening 101 of the ventilation apparatus 1. The attachment stay 57 can be easily attached to the attachment position using the template paper, and the ventilation device 1 and the air supply / exhaust attachment 7 to which the attachment stay 57 is connected can be easily attached to the wall surface Wa.

  Next, a cover material (not shown) that covers the outer surface along the outer surface of the indoor side extended outer tube 612 is attached to the outer surface of the indoor side extended outer tube 612. Thereby, it can reduce that the design property which arises when piping is exposed indoors is impaired. Note that the air supply / exhaust attachment 7 disposed between the wall W and the ventilator 1 so as to hide the air supply / exhaust attachment 7 disposed between the wall W and the ventilator 1 and the indoor-side extended outer pipe 612 are hidden. Alternatively, a decorative cover may be provided to cover part or all of the indoor side extended outer pipe 612.

Thereafter, the bent outer tube 632 is penetrated from the indoor to the outdoor through the wall hole Wb. Then, outdoors, the extended inner pipe 651 of the extended double pipe 60 is attached to the bent inner pipe 631 via the second connecting member 64. The bent outer pipe 632 is attached with the outdoor-side extended outer pipe 652 of the extended double pipe 60 via the second connecting member 64.
As described above, the air supply / exhaust structure 6 of the ventilation device 1 can be constructed.

  The flow of the exhaust air EA and the outside air OA using the air supply / exhaust structure 6 of the ventilation device 1 configured as described above will be briefly described. As shown in FIG. 10, the exhaust EA from the ventilation device 1 is introduced from the exhaust partition opening 312 of the attachment-side air supply / exhaust connection portion 30, and from the exhaust partition opening 312 through the outer pipe communication portion 313, It passes through the space between the first outer tube 422 and the first inner tube 421 of the heavy tube 42 and flows to the space between the second outer tube 432 and the second inner tube 431 of the second inner / outer double tube 43. The In the exhaust EA that is circulated from the space between the first outer tube 422 and the first inner tube 421 to the space between the second outer tube 432 and the second inner tube 431, the direction in which the air flows is the penetration direction. Conversion from K to the horizontal direction X is performed. The exhaust EA circulated through the second outer pipe 432 is discharged to the outside through the extended outer pipe 652 of the extended double pipe 60.

  On the other hand, the supply of the outside air OA to the ventilator 1 is introduced from the outside to the inside through the 651 of the extended double pipe 60. The outside air OA introduced from 651 is circulated from 651 to the second inner pipe 431 of the second inner / outer double pipe 43, and from the second inner pipe 431 of the second inner / outer double pipe 43 to the first inner / outer double pipe 42. It is distributed to the first inner pipe 421. In the outside air OA flowing from the second inner pipe 431 to the first inner pipe 421, the direction in which the air flows is converted from the left-right direction X to the penetration direction K. The outside air OA circulated to the first inner pipe 421 is supplied to the ventilator 1 from the air supply partition opening 311 of the attachment side air supply / exhaust connection part 30.

  According to the air supply / exhaust structure 6 of the ventilation apparatus 1 according to the first embodiment described above, the following effects are obtained.

  The air supply / exhaust structure 6 of the ventilator 1 according to the present embodiment is the air supply / exhaust structure 6 of the ventilator 1 including an attachment / exhaust attachment 7 disposed between the wall surface Wa on the indoor side and the ventilator 1. The air supply / exhaust attachment 7 is connected to the back surface of the ventilator 1 provided with the device side air supply / exhaust opening 101 of the ventilator 1 divided into two layers so as to change the flow direction of the outside air OA and the exhaust EA. The direction change pipe 40 which converts the apparatus side air supply / exhaust opening 101 of the ventilator 1 into the inner / outer double pipe 43 is provided.

  Therefore, by using the attachment / exhaust attachment 7, the flow direction of the outside air OA can be changed from the penetration direction K to the left-right direction X, and the flow direction of the exhaust EA is changed from the left-right direction X to the penetration direction K. Can do. Thereby, the apparatus side air supply / exhaust opening 101 of the ventilation apparatus 1 can be easily connected to the existing wall hole Wb provided in the wall W, using the existing wall hole Wb as it is.

  In particular, even when the diameter of the existing wall hole Wb is different from the diameter of the device-side air supply / exhaust opening 101 of the ventilation device 1, the two-layer openings (the lower exhaust port 101a and the device-side air supply / exhaust opening 101) Since the penetration direction K of the upper air supply port 101b) can be changed to the direction in which the inner / outer double pipe 83 of the direction changing tube 40 extends, the device side air supply / exhaust opening 101 of the ventilation device 1 can be easily connected to the existing wall hole Wb. it can. Thereby, when using the existing wall hole Wb as it is and installing the ventilation apparatus 1 by renovation, the ventilation apparatus 1 can be installed easily.

  Further, even when the diameter of the apparatus-side air supply / exhaust opening 101 of the ventilator 1 is larger than the diameter of the existing wall hole Wb, the diameter can be easily changed by the second inner / outer double pipe 43. Therefore, the ventilator 1 can be easily installed without changing the size of the diameter of the apparatus-side air supply / exhaust opening 101 of the ventilator 1 or without providing a new hole in the wall W. Thereby, by using the attachment / exhaust attachment 7, the ventilation efficiency can be improved even when the diameter of the apparatus-side supply / exhaust opening 101 of the ventilation apparatus 1 is larger than the diameter of the existing wall hole Wb. Efficient ventilation can be performed without lowering.

  In addition, a device-side air supply / exhaust opening 101 (a two-layer opening vertically divided, a lower exhaust port 101a and an upper air supply) that is partitioned into a lower exhaust port 101a and an upper air supply port 101b on the rear surface of the ventilator 1. The mouth 101b) is converted to the second inner / outer double pipe 43 on the wall W side. Therefore, the manufacturing cost can be reduced by using the inner and outer double pipes, and the workability can be improved because the inner and outer double pipes are easily bent.

  Moreover, in this embodiment, the attachment side supply / exhaust connection part 30 and the direction change pipe | tube 40 are mutually rotatable in a connection state. That is, the attachment-side air supply / exhaust connection portion 30 and the direction change pipe 40 constitute a rotation mechanism that rotates the second inner / outer double pipe 43 of the direction change pipe 40 with respect to the device-side air supply / exhaust opening 101 of the ventilation device 1. . Therefore, the piping can be routed more easily to the existing wall hole Wb simply by rotating the direction change pipe 40 according to the position of the existing wall hole Wb. Thereby, the ventilation apparatus 1 can be easily arrange | positioned corresponding to the position of the existing wall hole Wb. Moreover, since the ventilation apparatus 1 can be arrange | positioned easily even if the position of the existing wall hole Wb is any position, the freedom degree of arrangement | positioning of the ventilation apparatus 1 can be improved.

In the present embodiment, the second inner pipe 431 is a pipe for outside air that supplies the outside air OA to the ventilator 1, and the second outer pipe 432 is a pipe for exhaust.
Here, in general, the outside air OA is constituted by cold air introduced from the outdoor side, and the exhaust EA is constituted by warm air discharged from the indoor side. Therefore, in the second inner / outer double pipe 43, the cold outer air OA is circulated through the second inner pipe 431 disposed inside, and the warm exhaust EA is circulated through the second outer pipe 432 disposed outside. As a result, the second inner / outer double pipe 43 is kept warm by the warm exhaust EA flowing through the second outer pipe 432 on the outer side. In addition, since the second outer pipe 432 through which the warm exhaust gas EA circulates is disposed outside, it is possible to suppress dew condensation on the outer surface of the second inner / outer double pipe 43.

  In the present embodiment, the extended double tube 60 connected to the second inner / outer double tube 43 and having 651 and 652 is further provided, and the extended double tube 90 is opposite to the second inner / outer double tube 43. The end portion of 651 is arranged so as to protrude from the end portion of 652. Therefore, it is possible to reduce the intake of the exhaust gas EA discharged from 652 by the 651.

  In the present embodiment, a heat insulating material is disposed inside the direction changing tube 40. Thereby, heat insulation can be ensured inside the direction change tube 40. Therefore, it can reduce that dew condensation water adheres to the outer surface of the direction change pipe 40.

  Moreover, in this embodiment, since the indoor side extended outer pipe 612 and the bent outer pipe 632 are made of a heat insulating material, they have both a function of circulating air inside and a function as a heat insulating material. . Thereby, it can reduce that dew condensation water adheres to the outer surface of the indoor side extended outer tube 612 and the bent outer tube 632 while circulating air inside. Moreover, since it is not necessary to employ a configuration in which a heat insulating material is disposed outside the vinyl chloride pipe, the manufacturing cost can be reduced, and the increase in the diameter of the indoor-side extended outer pipe 612 and the bent outer pipe 632 can be reduced. Therefore, it is possible to reduce the increase in the depth on the indoor side.

(Second Embodiment)
Next, the air supply / exhaust structure 6A of the ventilation device 1 according to the second embodiment will be described. The ventilator 1 according to the second embodiment is attached to an upper portion of the wall surface Wa of the wall W on the indoor side, and supplies and exhausts air between the outdoor of the building and the indoor via the air supply / exhaust structure 6A according to the present invention. It is a ventilation device that performs ventilation. Since the configuration of the ventilation device 1 is the same as that of the first embodiment, the description thereof is omitted. FIG. 11 is a diagram illustrating a usage state of the air supply / exhaust structure 6A of the ventilation device 1 according to the second embodiment. FIG. 12 is a perspective view showing the positional relationship between the ventilation device 1 and the air supply / exhaust structure 6A of the second embodiment. These are perspective views which show attachment 7A for air supply / exhaust. FIG. 14 is an exploded perspective view showing the attachment / exhaust 7A for air supply / exhaust according to the second embodiment, which is disassembled into an attachment-side supply / exhaust connection part 70 and a direction change pipe 80. FIG. 15 is a perspective view showing the attachment-side air supply / exhaust connection portion 70 of the air supply / exhaust attachment 7A of the second embodiment. 16 is a cross-sectional view of the air supply / exhaust attachment 7A shown in FIG.

  As shown in FIGS. 11 and 12, the air supply / exhaust structure 6 </ b> A of the ventilator 1 is attached to the back surface of the ventilator 1 via a device side air supply / exhaust connection adapter 12 provided on the back plate 11 of the ventilator 1.

The device side air supply / exhaust connection adapter 12 is attached to the edge of the back plate opening 11a of the back plate 11 on the upper end side of the first side X1 in the left-right direction X of the back plate 11 of the ventilation device 1.
As shown in FIG. 12, the apparatus-side air supply / exhaust connection adapter 12 includes an adapter annular member 121, and an adapter partition member 123 extending in the left-right direction X at the center in the vertical direction of the adapter air supply / exhaust opening 120 of the adapter annular member 121. Have. The adapter partition member 123 is attached to the air supply / exhaust attachment 7A of the air supply / exhaust structure 6A.

  The adapter annular member 121 is formed in an annular shape and is attached to the edge of the back plate opening 11 a of the back plate 11. An adapter supply / exhaust opening 120 is formed in the adapter annular member 121.

  The adapter partition member 123 partitions the adapter supply / exhaust opening 120 into an adapter lower exhaust port 120a and an adapter upper air supply port 120b. The adapter partition member 123 extends horizontally in the radial direction of the adapter supply / exhaust opening 120 at the approximate center in the vertical direction of the adapter supply / exhaust opening 120. Thus, the adapter lower exhaust port 120a through which the exhaust EA passes is configured by the lower semicircular portion of the adapter supply / exhaust opening 120, and the adapter upper side through which the outside air OA passes by the upper semicircular portion of the adapter supply / exhaust opening 120. An air supply port 120b is configured.

  When the apparatus side air supply / exhaust connection adapter 12 is attached to the edge of the back plate opening 11a of the back plate 11 and the back panel 11 is attached to the ventilator 1, the adapter supply of the apparatus side air supply / exhaust connection adapter 12 is provided. The exhaust opening 120 communicates with a device-side air supply / exhaust opening 101 provided on the back surface of the ventilation device 1. The adapter lower exhaust port 120 a communicates with the lower exhaust port 101 a of the device side air supply / exhaust opening 101, and the adapter upper air supply port 120 b communicates with the upper air supply port 101 b of the device side air supply / exhaust opening 101.

  As shown in FIGS. 13 and 14, the air supply / exhaust structure 6 </ b> A of the ventilation device 1 includes an air supply / exhaust attachment 7 </ b> A and an extended double pipe 90 (see FIG. 11).

As shown in FIG. 11, the air supply / exhaust attachment 7 </ b> A is disposed between the wall surface Wa on the indoor side and the ventilation device 1.
As shown in FIGS. 13 to 15, the air supply / exhaust attachment 7 </ b> A includes an attachment side air supply / exhaust connection part 70 (attachment side connection part) and a direction changing pipe 80 (direction changing mechanism). The direction change pipe 80 is attached to the attachment side air supply / exhaust connection part 70 in a state in which the attachment side air supply / exhaust connection part 70 and the direction change pipe 80 are rotatable relative to each other.

  The attachment-side air supply / exhaust connection portion 70 is attached to a device-side air supply / exhaust connection adapter 12 provided on the back plate 11 on the back surface of the ventilation device 1. As shown in FIGS. 14 and 15, the attachment-side air supply / exhaust connection portion 70 includes an annular plate member 71 (annular member), an outer peripheral double wall 72, an inner peripheral extending wall 73, and an inner peripheral protruding wall 74. , A partition double wall 75 (attachment side partition member), an inner edge semicircular arc wall portion 76, a semicircular disc portion 77, and an extended inner peripheral wall portion 78.

  The annular plate member 71 is formed in an annular plate shape with an attachment-side air supply / exhaust opening 710 (attachment-side opening) formed in the center. The annular plate member 71 is formed having a width of a predetermined length in the radial direction, and is arranged in parallel to the wall surface Wa.

The outer peripheral double wall 72 extends to the wall surface Wa side from the outer peripheral edge of the surface of the annular plate member 71 on the wall surface Wa side. The outer peripheral double wall 72 is formed over the entire circumference of the annular plate member 71. As shown in FIG. 7, the outer peripheral double wall 72 has a first outer peripheral wall portion 721 and a second outer peripheral wall portion 722. The first outer peripheral wall portion 721 and the second outer peripheral wall portion 722 are each formed in a cylindrical shape. The first outer peripheral wall portion 721 and the second outer peripheral wall portion 722 are arranged in a double manner in a state where the first outer peripheral wall portion 721 is arranged outside, and constitute a double outer peripheral wall.
The outer peripheral double wall 72 is rotatably locked to an end portion 822b of a first inner / outer double pipe 82 of the direction changing pipe 80 to be described later in a state where the direction changing pipe 80 is attached to the attachment-side supply / exhaust connection portion 70. The

  The inner peripheral extending wall 73 extends from the inner peripheral edge of the annular plate member 71 with a predetermined width inward in the radial direction of the annular plate member 71 in parallel with the wall surface Wa. The inner peripheral extension wall 73 is formed over the entire circumference of the annular plate member 71.

  The inner peripheral protruding wall 74 protrudes from the inner peripheral edge of the annular plate member 71 to the ventilator 1 side with a predetermined length. The inner peripheral protruding wall 74 is formed over the entire circumference of the annular plate member 71. The inner peripheral protruding wall 74 is provided on the back plate 11 on the back of the ventilator 1 in a state where the attachment / exhaust attachment 7 is attached to the device side air supply / exhaust connection adapter 12 provided on the back plate 11 on the back of the ventilator 1. It is attached to the adapter annular member 121 (see FIG. 12) of the device side air supply / exhaust connection adapter 12.

  The partition double wall 75 partitions the attachment side air supply / exhaust opening 710 of the annular plate member 71 at a substantially central position. The partition double wall 75 passes through the center of the attachment-side air supply / exhaust opening 710 and extends in the radial direction. The partition double wall 75 has a first wall portion 751 and a second wall portion 752. The 1st wall part 751 and the 2nd wall part 752 are arrange | positioned in parallel, and comprise a double wall.

The partition double wall 75 has an attachment side air supply / exhaust opening 710 divided into an air supply partition opening 711 (air supply passage portion) through which the air supply SA passes and an exhaust air partition opening 712 (exhaust passage portion) through which the exhaust EA passes. Partition. As a result, an air supply partition opening 711 through which the supply air SA passes is formed by the semicircular portion on one side of the attachment side air supply / exhaust opening 710, and the exhaust EA passes by the semicircular portion on the other side of the attachment side air supply / exhaust opening 710. An exhaust partition opening 712 is configured.
The partition double wall 75 is provided on the back plate 11 on the back surface of the ventilator 1 in a state where the attachment / exhaust attachment 7 is attached to the device side air supply / exhaust connection adapter 12 provided on the back plate 11 on the back surface of the ventilator 1. The device partitioning member 123 (see FIG. 12) of the device side air supply / exhaust connection adapter 12 is locked.

As shown in FIG. 14, a first circular arc convex portion 751 a that protrudes on the opposite side of the second wall portion 752 is formed at the center of the first wall portion 751 in the radial direction in which the first wall portion 751 extends.
A second arcuate convex portion 752 a that protrudes on the opposite side to the first wall portion 751 is formed at the radial center of the second wall portion 752 where the second wall portion 752 extends.

  The inner semicircular arc wall 76 is formed in a semi-cylindrical wall shape and extends in the penetration direction K. The outer surface of the inner edge semicircular arc wall portion 76 is connected to the inner peripheral edge on the second wall portion 752 side of the inner peripheral edge of the inner peripheral extension wall 73 in the middle of the penetration direction K. The inner edge semicircular arc wall portion 76 is disposed along the inner peripheral protruding wall 74 in the half-circumferential portion of the inner peripheral protruding wall 74 so as to be separated from the inner peripheral protruding wall 74. The inner edge semicircular arc wall portion 76 and the inner peripheral protruding wall 74 are arranged in a double manner to constitute a double arc wall.

  Both ends in the circumferential direction of the inner edge semicircular arc wall 76 are respectively connected to both ends in the radial direction of the second wall 752 of the partition double wall 75. A portion surrounded by the inner edge semicircular arc wall portion 76 and the second wall portion 752 of the partition double wall 75 is formed in a semicircular shape extending in the penetrating direction K, and constitutes the air supply partition opening 711 described above. The air supply partition opening 711 communicates with a first inner pipe 821 of a first inner / outer double pipe 82 of a direction changing pipe 80 described later.

  The semi-disc portion 77 is formed in a semi-disc shape, and is disposed on the wall W side in the penetration direction K in the exhaust partition opening 712 of the annular plate member 71. The semicircular disc portion 77 extends in parallel with the wall surface Wa along the wall surface Wa from the end portion on the wall surface Wa side in the penetration direction K in the first wall portion 751 of the partition double wall 75. The semi-disc portion 77 is formed to have substantially the same size as the exhaust partition opening 712 when viewed in the penetration direction K. The outer peripheral edge of the semicircular plate portion 77 is formed in a semicircular arc shape that is substantially the same as the inner peripheral edge of the annular plate member 71 that forms the attachment-side air supply / exhaust opening 710.

Between the inner peripheral edge of the annular plate member 71 and the outer peripheral edge of the semicircular disk part 77, an outer pipe communication part 713 having a width in the penetration direction K and opening in the radial direction is formed. The outer pipe communication portion 713 communicates from the space on the ventilation device 1 side of the semicircular disc portion 77 to the outside in the radial direction.
In a state where the direction change pipe 80 is attached to the attachment-side air supply / exhaust connection portion 70, the exhaust EA circulated through the exhaust partition opening 712 of the annular plate member 71 passes through the outer pipe communication portion 713 or a semicircular plate. After reaching the section 77, it flows through the outer pipe communication section 713 to the first outer pipe 822 of the first inner / outer double pipe 82 of the direction changing pipe 80 described later.

  As shown in FIG. 15, the extending inner peripheral wall portion 78 is formed in a cylindrical shape, and extends from the outer peripheral edge of the end portion on the wall W side of the inner edge semicircular arc wall portion 76 and the arc portion of the semicircular plate portion 77 to the wall surface Wa side. Extend to. In the state where the direction change pipe 80 is attached to the attachment-side air supply / exhaust connection part 70, as shown in FIG. 16, the extended inner peripheral wall part 78 is the first of the first inner and outer double pipes 82 of the direction change pipe 80 described later. It arrange | positions along the internal peripheral surface of the edge part 821b by the side of the ventilation apparatus 1 of the inner pipe | tube 821. FIG. The extended inner peripheral wall portion 78 is rotatably locked to an end portion 821b of a first inner / outer double tube 82 of the direction changing tube 80 to be described later in a state where the direction changing tube 80 is attached to the attachment side air supply / exhaust connection portion 70. Is done.

  As shown in FIGS. 4 and 14, the attachment-side air supply / exhaust connection portion 70 configured as described above is connected to the device-side air supply / exhaust connection adapter 12 in which the partition double wall 75 is provided on the back plate 11 of the ventilation device 1. The inner wall protruding wall 74 is locked to and connected to the adapter annular protrusion 122 of the device side air supply / exhaust connection adapter 12 provided on the back surface of the ventilation device 1. By this, it connects to the apparatus side air supply / exhaust connection adapter 12 provided in the back plate 11 of the ventilation apparatus 1.

  As shown in FIGS. 13 and 14, the direction change pipe 80 is rotatably attached to the attachment-side air supply / exhaust connection portion 70. The direction change pipe 80 converts the direction in which the outside air OA flows between the ventilator 1 and the wall hole Wb of the wall W from the left-right direction X to the penetration direction K and also changes the direction in which the exhaust EA flows to the penetration direction K. To the left-right direction X.

  As shown in FIG. 14, the direction change pipe 80 includes a first inner / outer double pipe 82, a circular side plate 81 that closes an end of the first inner / outer double pipe 82 on the wall surface Wa side, and a first inner / outer double pipe. A second inner / outer double pipe 83 (double pipe) connected to 82. The direction change pipe 80 converts the device side air supply / exhaust opening 101 of the ventilator 1 into an inner / outer double pipe 83 so as to change the flow direction of the outside air OA and the exhaust EA.

  The first inner / outer double tube 82 includes a first inner tube 821 and a first outer tube 822. The first inner pipe 821 and the first outer pipe 822 are each formed in a cylindrical shape and extend in the penetration direction K through which the apparatus-side air supply / exhaust opening 101 provided on the back surface of the ventilation apparatus 1 passes. The first outer tube 822 is formed in a cylindrical shape having a larger diameter than the first inner tube 821. The first outer tube 822 is disposed outside the first inner tube 821 so as to be separated from the first inner tube 821. The first inner tube 821 and the first outer tube 822 are arranged concentrically and have a double tube structure.

  The space on the inner side of the first inner pipe 821 communicates with the air supply partition opening 711 of the attachment side air supply / exhaust connection part 70 in a state where the direction changing pipe 80 is attached to the attachment side air supply / exhaust connection part 70. Outside air OA flows in the space on the inner side of the first inner pipe 821, and the first inner pipe 821 constitutes an air supply pipe for supplying the outside air OA.

  The space between the first outer pipe 822 and the first inner pipe 821 is formed in the outer pipe communication portion 713 of the attachment side air supply / exhaust connection portion 70 in a state where the direction changing pipe 80 is attached to the attachment side air supply / exhaust connection portion 70. Communicate. The exhaust EA flows through the space between the first outer tube 822 and the first inner tube 821, and the first outer tube 822 constitutes an exhaust pipe.

  The length of the first inner tube 821 in the penetration direction K is shorter than the length of the first outer tube 822 in the penetration direction K. The end portion on the wall surface Wa side of the first inner tube 821 and the end portion on the wall surface Wa side of the first outer tube 822 are arranged at the same position in the penetration direction K. The end portion of the first inner pipe 821 on the ventilation device 1 side is disposed closer to the wall surface Wa than the end portion of the first outer pipe 822.

  The end portion on the wall surface Wa side of the first inner tube 821 and the end portion on the wall surface Wa side of the first outer tube 822 are connected to the circular side plate 81. The circular side plate 81 is formed in a disk shape having a diameter substantially the same as the diameter of the first outer tube 822, and the first inner tube 821 and the first outer tube 822 are connected to the first inner tube 821 and the first outer tube 822, respectively. The tube 822 is closed at the end on the wall surface Wa side.

  In this way, the end portion on the wall surface Wa side of the first inner tube 821 and the end portion on the wall surface Wa side of the first outer tube 822 are configured to be closed with the single circular side plate 81. Therefore, it is not necessary to provide a member for closing the end of the first inner tube 821 on the wall surface Wa side and the end of the first outer tube 822 on the wall surface Wa side. Therefore, the cost required for the member that closes the end portion is higher than when a member that closes the end portion on the wall surface Wa side of the first inner tube 821 and the end portion on the wall surface Wa side of the first outer tube 822 is provided. Can be reduced. Further, the first inner and outer double pipes 82 penetrate more than the case where a member for closing the end of the first inner pipe 821 on the wall surface Wa side and the end of the first outer pipe 822 on the wall surface Wa side is provided. The thickness in the direction K can be reduced, and the thickness in the penetration direction K of the attachment / exhaust attachment 7 can be reduced.

A circular inner pipe communication hole 821 a is formed through the side portion of the first inner pipe 821.
A circular outer tube communication hole 822a is formed through the side portion of the first outer tube 822 on the same side as the inner tube communication hole 821a of the first inner tube 821. The outer pipe communication hole 822a is formed with a larger diameter than the inner pipe communication hole 821a.

  The second inner / outer double tube 83 includes a second inner tube 831 and a second outer tube 832. The second inner tube 831 and the second outer tube 832 are each formed in a cylindrical shape and extend in the left-right direction X (direction intersecting the penetration direction K). The second inner tube 831 and the second outer tube 832 are arranged concentrically and have a double tube structure.

  The second inner pipe 831 passes through the outer pipe communication hole 822a from the peripheral edge of the inner pipe communication hole 821a on the outer surface of the first inner pipe 821, and extends in the left-right direction X (through) The first side X1 extends in the direction intersecting the direction K).

  The second outer tube 832 extends from the peripheral edge of the outer tube communication hole 822a on the outer surface of the first outer tube 822 to the first side X1 in the left-right direction X (direction intersecting the penetration direction K). The second outer tube 832 is formed in a cylindrical shape having a larger diameter than the second inner tube 831. The second outer tube 832 is spaced from the second inner tube 831 and is disposed outside the second inner tube 831.

  The space on the inner side of the second inner tube 831 communicates with the space on the inner side of the first inner tube 821. Further, the second inner pipe 831 is connected to the air supply partition opening 711 of the attachment side air supply / exhaust connection part 70 via the first inner pipe 821 in a state where the direction changing pipe 80 is attached to the attachment side air supply / exhaust connection part 70. Communicate. The second inner pipe 831 constitutes an air supply pipe. The flow direction of the supplied outside air OA distributed from the second inner pipe 831 toward the first inner pipe 821 is converted from the left-right direction X to the penetration direction K.

  A space between the second outer tube 832 and the second inner tube 831 communicates with a space between the first outer tube 822 and the first inner tube 821. The space between the second outer pipe 832 and the second inner pipe 831 is the same as that of the first outer pipe 822 and the first inner pipe 821 in a state where the direction changing pipe 80 is attached to the attachment-side air supply / exhaust connection portion 70. The space communicates with the outer pipe communication portion 713 of the attachment side air supply / exhaust connection portion 70, and further communicates with the exhaust partition opening 712 of the attachment side air supply / exhaust connection portion 70. The second outer pipe 832 constitutes an exhaust pipe. The flow direction of the exhaust gas EA flowing from the first outer tube 822 toward the second outer tube 832 is converted from the penetrating direction K to the left-right direction X.

  A flange portion 832 a is formed on the outer peripheral surface of the second outer tube 832. The flange portion 832a is formed so as to protrude from the outer peripheral surface in the entire circumferential direction of the outer peripheral surface, and extends in an annular shape.

  In the attachment-side air supply / exhaust connection portion 70 and the direction change pipe 80 configured as described above, as shown in FIG. 16, the extension-side inner wall portion 78 of the attachment-side air supply / exhaust connection portion 70 has the first The first inner / outer double pipe of the direction change pipe 80 is attached to the outer peripheral double wall 72 of the annular plate member 71 of the attachment-side air supply / exhaust connection 70. The end portions 822b of 82 are rotatably attached, so that they can be rotated relative to each other. Thereby, corresponding to the position where the wall hole Wb of the wall W mentioned later is provided, the direction of the piping between the ventilator 1 and the wall hole Wb is changed from the penetration direction K to the left-right direction X intersecting the penetration direction K. Can be converted to That is, the attachment-side air supply / exhaust connection portion 70 and the direction change pipe 80 constitute a rotation mechanism that rotates the second inner / outer double pipe 83 of the direction change pipe 80 with respect to the device-side air supply / exhaust opening 101 of the ventilation device 1. . Therefore, the direction of the apparatus side air supply / exhaust opening 101 provided on the back surface of the ventilation device 1 can be easily changed from the penetration direction K to the direction intersecting the penetration direction K. Further, the attachment-side supply / exhaust connection portion 70 of the supply / exhaust attachment 7 is rotated in accordance with the direction in which the adapter partition member 123 of the device-side supply / exhaust connection adapter 12 attached to the back plate 11 of the ventilation device 1 extends. Thus, the air supply / exhaust attachment 7 can be easily attached to the back surface of the ventilation device 1.

  As shown in FIG. 16, the extended double pipe 90 is connected to the second inner / outer double pipe 83 of the direction changing pipe 80 of the air supply / exhaust attachment 7. As shown in FIG. 11, the extended double pipe 90 extends from the indoor to the outdoor via the wall hole Wb of the wall W from the air supply / exhaust attachment 7.

  The extended double tube 90 has an extended inner tube 91 disposed on the inner side and an extended outer tube 92 disposed on the outer side of the extended inner tube 91. The extended double tube 90 has a double tube structure with an extended inner tube 91 and an extended outer tube 92. The extended double tube 90 is disposed along the wall surface Wa on the indoor side, is disposed through the wall hole Wb of the wall W in the middle, is bent downward on the outdoor side, and is downward along the wall W. Extend.

  As shown in FIG. 16, the extended inner pipe 91 is connected to the second inner pipe 831 of the second inner / outer double pipe 83 of the air supply / exhaust attachment 7 as shown in FIG. As shown in FIG. 11, it opens downward. Outside air OA is circulated through the extended inner pipe 91. That is, the extended inner pipe 91 is an air supply pipe that supplies the outside air OA.

  As shown in FIG. 16, the extended outer pipe 92 is connected to the second outer pipe 832 of the second inner / outer double pipe 83 of the air supply / exhaust attachment 7 via a seal member 93 as shown in FIG. 16. As shown in FIG. 11, the end on the outdoor side opens downward. The exhaust EA is circulated through the extended outer pipe 92. That is, the extended outer pipe 92 is an exhaust pipe.

  At the end of the extended inner pipe 91 opposite to the second inner / outer double pipe 83, as shown in FIG. 11, the end of the extended inner pipe 91 on the outdoor side is the end of the extended outer pipe 92 on the outdoor side. It arrange | positions in the position protruded rather than the part. Thereby, the exhaust EA discharged from the end of the extended outer pipe 92 is reduced from being sucked from the end of the extended inner pipe 91.

  The flow of the exhaust EA, the outside air OA, and the air supply SA using the air supply / exhaust structure 6 of the ventilation device 1 configured as described above will be briefly described. As shown in FIG. 16, the exhaust EA from the ventilation device 1 is introduced from the exhaust partition opening 712 of the attachment-side air supply / exhaust connection portion 70, and the first inner and outer two are connected from the exhaust partition opening 712 via the outer pipe communication portion 713. It passes through the space between the first outer tube 822 and the first inner tube 821 of the heavy tube 82 and flows to the space between the second outer tube 832 and the second inner tube 831 of the second inner / outer double tube 83. The In the exhaust EA that is circulated from the space between the first outer tube 822 and the first inner tube 821 to the space between the second outer tube 832 and the second inner tube 831, the direction in which the air flows is the penetration direction. Conversion from K to the horizontal direction X is performed. The exhaust EA circulated through the second outer pipe 832 is discharged to the outside through the extended outer pipe 92 of the extended double pipe 90.

  On the other hand, the supply of the outside air OA to the ventilation device 1 is introduced from the outside to the inside through the extended inner pipe 91 of the extended double pipe 90. The outside air OA introduced from the extended inner pipe 91 is circulated from the extended inner pipe 91 to the second inner pipe 831 of the second inner / outer double pipe 83, and from the second inner pipe 831 of the second inner / outer double pipe 83. The first inner / outer double pipe 82 is circulated to the first inner pipe 821. In the outside air OA that is circulated from the second inner pipe 831 to the first inner pipe 821, the direction in which the air circulates is converted from the left-right direction X to the penetration direction K. The outside air OA circulated to the first inner pipe 821 is supplied to the ventilation device 1 from the air supply partition opening 711 of the attachment side air supply / exhaust connection part 70.

  According to the air supply / exhaust structure 6A of the ventilation apparatus 1 according to the second embodiment described above, the same effects as the exhaust structure of the air supply apparatus according to the first embodiment can be obtained. In addition, although the heat insulating material is not provided in the inner surface of the supply / exhaust attachment 7A, the ventilation apparatus 1 of 2nd Embodiment is not limited to this, It provides a heat insulating material similarly to 1st Embodiment. It may be configured.

The present invention is not limited to the above-described embodiment, and modifications, improvements, and the like within the scope that can achieve the object of the present invention are included in the present invention.
For example, in the first embodiment, the attachment-side air supply / exhaust connection part 30 and the direction change pipe 40 are configured to be rotatable with respect to each other in the connected state, but the present invention is not limited to this. You may comprise the attachment side supply / exhaust connection part 30 and the direction change pipe | tube 40 so that a mutual rotation is impossible.
Moreover, in the said 2nd Embodiment, although the attachment side supply / exhaust connection part 70 and the direction change pipe | tube 80 were comprised so that mutual rotation was possible in the mutual connection state, it is not limited to this. You may comprise the attachment side supply / exhaust connection part 70 and the direction change pipe | tube 80 so that a mutual rotation is impossible.

In the first embodiment, the indoor-side extended inner pipe 611, the bent inner pipe 631 and the outdoor-side extended inner pipe 651 are used as air supply pipes, and the indoor-side extended outer pipe 612, the bent outer pipe 632, and the house are provided. The outer extending outer pipe 652 is an exhaust pipe, but is not limited thereto. Contrary to the present embodiment, the indoor side extended inner pipe 611, the bent inner pipe 631 and the outdoor side extended inner pipe 651 are used as exhaust pipes, and the indoor side extended outer pipe 612, the bent outer pipe 632 and the outdoor side extended pipe are used. The outside pipe 652 may be a pipe for supplying air.
In the second embodiment, the second inner pipe 831 is an air supply pipe and the second outer pipe 832 is an exhaust pipe. However, the present invention is not limited to this. Contrary to the present embodiment, the second inner pipe 831 may be an exhaust pipe, and the second outer pipe 832 may be an air supply pipe.

  In the second embodiment, the end portion on the wall surface Wa side of the first inner tube 821 and the end portion on the wall surface Wa side of the first outer tube 822 are configured to be closed with a single circular side plate 81. However, it is not limited to this. A circular side that closes the first outer tube 822 by separating the end of the first inner tube 821 from the circular side plate 81 and closing the end of the first inner tube 821 with another circular plate (not shown). A space through which the exhaust EA passes may be provided between the face plate 81 and a circular plate (not shown) that closes the first inner tube 821. In this case, the exhaust EA is allowed to pass between the circular side plate 81 that closes the first outer tube 822 and the circular plate (not shown) that closes the first inner tube 821, so that the exhaust EA becomes the first outer tube. The pressure loss at the time of flowing through 822 and colliding with the circular side plate 81 can be reduced.

  In the second embodiment, the semicircular plate portion 77 is formed so as to extend in parallel with the wall surface Wa, but is not limited thereto. In the outer peripheral edge of the semicircular disk part 77, it may be formed so as to be inclined from the ventilation device 1 side toward the wall W side. In the outer periphery of the semicircular disk part 77, the pressure of the exhaust gas EA that collides with the circular side surface plate 81 is formed at the outer peripheral edge of the semicircular disk part 77 when it is formed to be inclined from the ventilation device 1 side toward the wall W side. The pressure loss when the exhaust EA collides with the circular side plate 81 can be reduced.

DESCRIPTION OF SYMBOLS 1 Ventilator 6 Ventilation air supply / exhaust structure 7, 7A Supply / exhaust attachment 30 Attachment side supply / exhaust connection part (attachment side connection part, rotation mechanism)
31 Annular plate member (annular member)
34 Partition wall (attachment side partition member)
40 Direction change pipe (direction change mechanism, rotation mechanism)
43 Second inner / outer double pipe (inner / outer double pipe)
60 Extended double pipe 310 Attachment side air supply / exhaust opening (attachment side opening)
311 Air supply partition opening (air supply passage part)
312 Exhaust partition opening (exhaust passage part)
431 Second inner pipe (inner pipe)
432 Second outer pipe (outer pipe)
651 Outdoor pipe (extended pipe)
652 Outdoor-side extended outer pipe (extended outer pipe)
70 Attachment-side supply / exhaust connection (attachment-side connection, rotation mechanism)
71 Annular plate member (annular member)
75 Double partition wall (attachment side partition member)
80 Direction change pipe (direction change mechanism, rotation mechanism)
83 Second inner / outer double pipe (inner / outer double pipe)
90 Extending double pipe 91 Extending inner pipe 92 Extending outer pipe 101 Device side air supply / exhaust opening (supply / exhaust double layer opening)
101a Lower exhaust port (exhaust passage part)
101b Upper air supply port (supply air passage part)
102 Apparatus side partition member 710 Attachment side air supply / exhaust opening (attachment side opening)
711 Supply partition opening (Supply passage part)
712 Exhaust partition opening (exhaust passage part)
831 2nd inner pipe (inner pipe)
832 Second outer pipe (outer pipe)
EA Exhaust SA SA Supply K Penetration direction X Left and right direction (direction intersecting penetration direction)
Wa Wall surface Wb Wall hole (hole)

Claims (8)

A ventilator air supply / exhaust structure comprising an air supply / exhaust attachment disposed between an indoor wall and the ventilator,
The air supply / exhaust attachment is connected to the back surface of the ventilator provided with an air supply / exhaust two-layer opening partitioned into two layers, so as to change the flow direction of outside air and exhaust supplied to the ventilator. And an air supply / exhaust structure for a ventilator provided with a direction changing mechanism for converting the two-layer supply / exhaust opening into an inner / outer double pipe having an inner pipe and an outer pipe. On the back surface of the ventilator, the supply / exhaust two-layer opening penetrating the inside and the outside of the ventilator, and a device-side partition member that partitions the supply / exhaust two-layer opening into an intake passage portion and an exhaust passage portion , Is provided,
The air supply / exhaust attachment includes an attachment side connecting portion attached to a back surface of the ventilation device, and the direction changing mechanism attached to the attachment side connecting portion.
The attachment-side connection portion includes an annular member in which an attachment-side opening is formed, and an attachment-side partition member that partitions the attachment-side opening into an air supply passage portion and an exhaust passage portion,
2. The air supply / exhaust structure for a ventilator according to claim 1, wherein the direction changing mechanism includes the inner / outer double pipe having an inner pipe and an outer pipe extending in a direction intersecting with a penetrating direction through which the two-layer supply / exhaust opening passes.   The air supply / exhaust structure for a ventilator according to claim 1 or 2, wherein the direction changing mechanism includes a rotation mechanism that rotates the inner / outer double pipe with respect to the supply / exhaust double-layer opening. The inner pipe is a pipe for outside air that supplies outside air to the ventilator,
The air supply / exhaust structure for a ventilator according to claim 2 or 3, wherein the outer pipe is an exhaust pipe. An extended double pipe connected to the inner and outer double pipes and having an extended inner pipe and an extended outer pipe;
5. The end of the extended inner pipe is disposed so as to protrude from the end of the extended outer pipe at the end of the extended double pipe opposite to the inner and outer double pipes. A ventilating air supply / exhaust structure according to any one of the above. The direction changing mechanism includes a direction changing tube,
The air supply / exhaust structure for a ventilator according to any one of claims 1 to 5, wherein a heat insulating material is provided on a part or all of an inner surface and / or an outer surface of the direction change pipe. An extended double pipe connected to the inner and outer double pipes and having an extended inner pipe and an extended outer pipe;
The supply / exhaust structure for a ventilator according to any one of claims 1 to 6, wherein the extended outer pipe is made of a heat insulating material. The construction method of the air supply / exhaust structure which constructs the said air supply / exhaustion attachment arrange | positioned between a wall surface and a ventilator of an indoor side using the air supply / exhaust structure of a ventilator provided with the attachment for air supply / exhaust of Claim 1 Because
The wall is provided with a hole having a diameter different from that of the supply / exhaust double layer opening,
An air supply / exhaust structure construction method comprising a step of installing the air supply / exhaust attachment between the air supply / exhaust double layer opening and the hole of the wall surface.

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