JP2014238180A - Building air conditioning installation and air conditioning installation manufacturing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To appropriately construct a heat insulating structure in a connector where an air conditioning duct is connected to an air conditioning chamber.SOLUTION: An air conditioning installation 10 comprises: a plurality of downstream ducts 12; and an air conditioning chamber 13 to those downstream ducts 12 are connected. In the air conditioning chamber 13, a plurality of downstream connectors 17 is provided on one side surface. Portions of those downstream connectors 17 to which downstream ducts 12 are connected respectively serve as duct connectors and a portion where a plurality of duct connectors is assembled together serves as a duct assembly portion. An assembly heat insulating portion 32 is attached to the duct assembly portion. The assembly heat insulating portion 32 includes an inner heat insulating member 33 provided in gaps between the duct connectors; and an outer heat insulating member 34 provided outside of the duct assembly 31. The inner heat insulating member 33 and the outer heat insulating member 34 are provided in a state in which an outer side surface of the inner heat insulating member 33 contacts an inner side surface of the outer heat insulating member 34.

Description

  The present invention relates to a building air conditioner and a method for manufacturing the air conditioner.

  When the air conditioning equipment installed in a building such as a house has an air conditioning duct, the air conditioning duct is provided with a heat insulating structure. For example, in an air conditioning facility having an air conditioning duct and an air conditioning chamber to which the air conditioning duct is connected, each of the air conditioning duct and the air conditioning chamber has a heat insulating layer, and the connection portion between the air conditioning duct and the air conditioning chamber is insulated. There is a configuration in which members are attached (for example, see Patent Document 1). In this configuration, the air-conditioning duct is connected to the connection portion of the air-conditioning chamber, and the heat insulating member is attached to the connection portion in a state of being superimposed on the heat insulating layer of the air-conditioning duct.

Japanese Patent Laid-Open No. 10-78256

  However, in the configuration in which a plurality of air conditioning ducts are connected to the air conditioning chamber for the purpose of branching the ventilation path in the air conditioning equipment, it is assumed that the connection portions of the air conditioning chamber and the air conditioning duct are densely packed, We are anxious about the difficulty of the operation | work which attaches a heat insulation member separately for every connection part. Moreover, attaching a separate heat insulating member for each connecting portion increases the number of components including the heat insulating member, and there is a concern that the work of attaching the heat insulating member to the connecting portion becomes complicated.

  This invention is made | formed in view of the said situation, and makes it the main objective to construct | assemble a heat insulation structure suitably about the connection part of an air conditioning duct and an air conditioning chamber.

  Hereinafter, means and the like effective for solving the above-described problems will be described while showing functions and effects as necessary.

  The air conditioning equipment for a building according to a first aspect of the invention includes a plurality of air conditioning ducts, an air conditioning chamber to which the plurality of air conditioning ducts are connected, and a duct connection portion to which the air conditioning chamber and the air conditioning duct are connected. A plurality of duct assembly parts that are assembled with respect to one side surface, and an assembly heat insulating part attached to the duct assembly part, wherein the assembly heat insulating part is between the duct connection parts in the duct assembly part. An inner heat insulating member provided in the gap in a state of being in contact with the outer peripheral surface of the duct connecting portion, and formed on the outer side of the inner heat insulating member. An outer heat insulating member that covers the outer side of the duct assembly part, and an outer surface facing the outer side of the duct assembly part in the inner heat insulating member, and the outer heat insulating member Characterized in that an inner surface facing the duct collection unit side have are stacked.

  According to 1st invention, since an inner side heat insulation member and an outer side heat insulation member can be collectively attached with respect to each duct connection part of a duct assembly part, the separate heat insulation member is attached for every duct connection part. Compared to the configuration, the number of heat insulating members to be used is small, and the formation work of the aggregate heat insulating portion can be suppressed from becoming complicated. Moreover, since the inner heat insulating member is molded into a shape that matches the gap between the duct connecting portions, the inner heat insulating member is placed between the duct connecting portions in a state where a plurality of air conditioning ducts are connected to the air conditioning chamber. It is possible to facilitate the work of pushing into the gap and the work of bringing the outer heat insulating member into contact with the inner heat insulating member. Therefore, a heat insulating structure can be suitably constructed for the connection portion between the air conditioning duct and the air conditioning chamber.

  In a second invention, in the first invention, between the adjacent duct connection portions in a state where the outer heat insulating member is stretched, the separation distance between the duct connection portions is at the narrowest position. The inner heat insulating member is disposed.

  In the configuration in which the collective heat insulating portion includes the inner heat insulating member and the outer heat insulating member, the outer heat insulating member is attached to the duct collective portion after the inner heat insulating member is attached. For this reason, when the outer peripheral surface of the duct connecting portion has a curved surface, it is difficult to push the outer heat insulating member beyond the narrowest position with respect to the gap between the duct connecting portions, and it was pushed in temporarily. However, there is a concern that the outer heat insulating member is separated from the outer peripheral surface of the duct connecting portion inside the duct assembly portion from the narrowest position.

  On the other hand, according to the second invention, in the gap between the duct connecting portions, it is only necessary to pull out the inner heat insulating member toward the outside of the duct assembly portion at least to the narrowest position. There is no need to push the inside of the duct assembly beyond the narrow position. Moreover, by pulling out the inner heat insulating member toward the outside of the duct collecting portion, the inner heat insulating member is more easily adhered to the outer peripheral surface of the duct connecting portion inside the duct collecting portion than at the narrowest position. Therefore, the inner heat insulating member can be installed in a proper state in the gap between the duct connecting portions.

  In 3rd invention, in 2nd invention, the said inner side heat insulation member has the extension part extended on the outer side of the said duct gathering part rather than the said narrowest position, and this extension part is the said The outer surface is overlapped with the inner surface of the outer heat insulating member.

  According to the third invention, the inner heat insulating member can be obtained by performing an easy operation of pulling out the extended portion to the outside of the duct assembly portion even in a state where the entire inner heat insulating member is pushed into the gap between the duct connecting portions. Can be installed in an appropriate state.

  In 4th invention, in 3rd invention, the boundary line of the said extension part and the said outer side heat insulation member is a straight line extended along the row direction of the said adjacent duct connection part.

  According to 4th invention, the operation | work which piles up the outer surface of an inner side heat insulation member and the inner surface of an outer side heat insulation member in contact | adhered state becomes easy.

  According to a fifth aspect, in the third or fourth aspect, the plurality of extending portions are provided side by side along a direction in which the outer heat insulating member extends, and the adjacent extending portions are connected to the air conditioning duct. The outer heat insulating members are overlapped on the outer peripheral surface of the air-conditioning duct.

  According to the fifth invention, it is not necessary to perform the work of winding the extending portion of the second heat insulating member around the outer peripheral surface of the duct connecting portion. If the extension is too large, it becomes difficult to draw the extension from the gap between the duct connection parts toward the outside of the duct assembly part. It is preferable that the extended portion is not drawn out from the gap between the duct connecting portions.

  In a sixth invention, in any one of the first to fifth inventions, a plurality of the plurality of duct connection portions are arranged in two rows.

  According to the sixth invention, there is no duct connection portion that is not exposed to the outside of the duct assembly portion. For example, unlike a configuration in which a plurality of duct connection portions are arranged in three rows, between the duct connection portions. Can be filled with one inner heat insulating member. Thereby, it is not necessary to perform a difficult operation of installing a plurality of inner heat insulating members in the gaps between the duct connecting portions and bringing these inner heat insulating members into close contact with each other in the gaps between the duct connecting portions.

  In a seventh invention, in any one of the first to sixth inventions, the plurality of duct connection portions are arranged in a plurality of rows parallel to each other, and the duct connection in one row among adjacent rows. The portion and the duct connecting portion in the other row are arranged at positions shifted from each other in the direction orthogonal to the direction in which each row extends.

  According to the seventh invention, since the arrangement of the duct connection portions in adjacent rows is shifted, a plurality of duct connection portions can be compactly integrated in the duct assembly portion, and the duct connection portions in adjacent rows Compared to a configuration in which the arrangement is not shifted, the separation distance between the duct connection portions in adjacent rows can be increased. In this case, since the thickness of the part arrange | positioned in the clearance gap between the duct connection parts of adjacent row | line | columns becomes large in an inner side heat insulation member, the favorable heat insulation by an inner side heat insulation member is securable.

  According to an eighth aspect of the present invention, there is provided a method for manufacturing an air conditioning facility, wherein the air conditioning facility is a building in which a plurality of air conditioning ducts are connected to the air conditioning chamber. A plurality of duct assembly portions that are assembled on one side surface of the chamber; and an assembly heat insulation portion attached to the duct assembly portion, wherein the assembly heat insulation portion is formed between the duct connection portions in the duct assembly portion. The inner heat insulating member provided in the gap in a state of being in contact with the outer peripheral surface of the duct connection portion and the duct assembly portion from the outside of the duct assembly portion. A step of forming the duct assembly by connecting the air-conditioning duct to the air-conditioning chamber. The step of pushing the inner heat insulating member into the gap between the duct connecting portions in the duct assembly portion, the outer heat insulating member, and the inner side surface of the outer heat insulating member facing the duct assembly portion is the inner heat insulating member. And a step of attaching to the duct assembly portion so as to overlap an outer surface of the member facing the outside of the duct assembly portion.

  According to the eighth aspect, the same effect as in the first aspect can be achieved.

(A) is a perspective view of the branch part of an air conditioner, (b) is a perspective view which shows the internal structure of the branch part of an air conditioner Exploded perspective view of the branch part of the air conditioning equipment Longitudinal sectional view of the connection between the air conditioning chamber and the downstream duct The figure which shows the composition of the collective heat insulation part The figure which shows the attachment procedure of a collective heat insulation part The perspective view which shows the structure of another air-conditioning chamber and an indoor unit Longitudinal section of another heat insulation assembly

  Hereinafter, an embodiment embodying the present invention will be described with reference to the drawings. In this embodiment, the air-conditioning equipment which has an air conditioner is installed in buildings, such as a house, and in this air-conditioning equipment, the air-conditioning air produced | generated with the air-conditioner blows off to the living space from the blowing part. A plurality of outlets are provided, and in the air conditioning equipment, conditioned air is distributed to the outlets.

  1A is a perspective view of a branch portion of the air conditioning equipment 10, FIG. 1B is a perspective view showing an internal structure of the branch portion of the air conditioning equipment 10, and FIG. 2 is an exploded perspective view of the branch portion of the air conditioning equipment 10. is there. In addition, in FIG.1 (b), illustration of the upstream duct 11, the downstream duct 12, and the outer side heat insulation member 34 is abbreviate | omitted.

  As shown in FIGS. 1A, 1B, and 2, the air conditioning equipment 10 includes long ducts 11 and 12 as air conditioning ducts, and an air conditioning chamber 13 to which the ducts 11 and 12 are connected. have. Among the ducts 11 and 12, one upstream duct 11 is provided on the upstream side of the air conditioning chamber 13, and a plurality of downstream ducts 12 are provided on the downstream side of the air conditioning chamber 13. In this case, the air conditioning chamber 13 is a branch chamber that branches the air flowing from the upstream duct 11 into a plurality of downstream ducts 12, and forms a branch portion of the air conditioning equipment 10. Each of the ducts 11 and 12 is a flexible duct such as a flexible duct, and is formed in a cylindrical shape.

  The air conditioning chamber 13 includes a box-shaped chamber body 15, an upstream connection portion 16 to which the upstream duct 11 is connected, and a downstream connection portion 17 to which the downstream duct 12 is connected. In the chamber body 15, an upstream connection portion 16 is provided on one of a pair of side portions facing each other, and a downstream connection portion 17 is provided on the other side. A plurality of downstream connection portions 17 are provided, and these downstream connection portions 17 are arranged side by side along one side surface of the chamber body 15.

  The building has a non-residential space such as a ceiling back space and an underfloor space in addition to a living space such as a living room and a kitchen. The ducts 11 and 12 and the air conditioning chamber 13 are installed in the non-residential space. The plurality of downstream ducts 12 correspond to a plurality of air conditioning ducts.

  Here, a connection structure between the downstream connection portion 17 of the air conditioning chamber 13 and the downstream duct 12 will be described with reference to FIGS. 2 and 3. FIG. 3 is a longitudinal sectional view of a connection portion between the air conditioning chamber 13 and the downstream duct 12. In addition, the connection structure of the upstream connection part 16 and the upstream duct 11 is made the same as the connection structure of the downstream connection part 17 and the downstream duct 12, and detailed description is abbreviate | omitted here.

  As shown in FIGS. 2 and 3, the downstream connection portion 17 has a vent hole 21 that penetrates the side surface portion of the chamber body 15 and a chamber flange 22 that extends outward from the side surface portion. . The chamber flange 22 is formed in a cylindrical shape that extends along the peripheral edge of the vent hole 21. The downstream connecting portion 17 and the downstream duct 12 are connected in a state where the chamber flange 22 enters the inside of the downstream duct 12, and a portion where the downstream connecting portion 17 and the downstream duct 12 overlap is a downstream connecting portion. The duct connecting portion 23 connects the pipe 17 and the downstream duct 12. In this case, the outer peripheral surface of the duct connecting portion 23 is formed by the outer peripheral surface of the downstream duct 12.

  In addition, a protrusion is provided on the outer peripheral surface of the downstream connection portion 17 so that the downstream duct 12 cannot be easily removed.

  In the chamber body 15, the outer peripheral portion including the side surface portion has a heat insulating layer, while the chamber flange 22 does not have a heat insulating layer. The heat insulating layer of the chamber main body 15 is formed of foamed polystyrene or the like, and is provided so as to overlap the inner side surface of the box that forms the outer side surface of the chamber main body 15.

  The downstream duct 12 has a duct body 26 having a heat insulating layer and a duct flange 27 protruding from the end face of the duct body 26, and the chamber flange 22 of the downstream connection portion 17 is inserted inside the duct flange 27. It is in the state that was. Here, the duct flange 27 does not have a heat insulating layer like the chamber flange 22, and the portion where the duct flange 27 and the chamber flange 22 overlap in the duct connection portion 23 is the chamber main body 15 and the downstream duct. 12 does not have a heat insulating layer, and is, for example, a low heat insulating portion 23a having a low heat insulating performance as compared with a portion where the duct body 26 and the chamber flange 22 overlap.

  The heat insulating layer of the duct main body 26 is formed of a fiber-based heat insulating material, and is provided so as to overlap the outer peripheral surface of the cylindrical member that forms the inner peripheral surface of the duct main body 26.

  The air conditioning equipment 10 has a duct assembly portion 31 in which a plurality of duct connection portions 23 are gathered. In the duct assembly portion 31, the plurality of duct connection portions 23 is the chamber main body in the same manner as the plurality of upstream connection portions 16. A plurality are arranged along one side surface of 15. A collective heat insulating portion 32 that imparts heat insulating performance to each duct connecting portion 23 is attached to the duct collective portion 31. The collective heat insulating portion 32 is provided in close contact with each of the outer peripheral surfaces of the duct connecting portions 23.

  The collective heat insulating portion 32 includes an inner heat insulating member 33 provided in a gap between the duct connecting portions 23 and an outer heat insulating member 34 provided on the outer peripheral side of the duct collective portion 31. The inner heat insulating member 33 and the outer heat insulating member 34 are formed of an elastically deformable heat insulating material such as urethane sponge. The inner heat insulating member 33 is molded into a shape that matches the gap between the duct connecting portions 23 and is pushed into the gap. The outer heat insulating member 34 is provided so as to cover each duct connecting portion 23 together with the inner heat insulating member 33 from the outer peripheral side of the duct assembly portion 31.

  In the duct connecting portion 23, the inner heat insulating member 33 or the outer heat insulating member 34 is overlaid on the entire outer peripheral surface of the low heat insulating portion 23a. The heat insulating members 33 and 34 straddle the boundary between the downstream duct 12 and the chamber main body 15 in the ventilation direction of the air conditioning equipment 10 (the extending direction of the chamber flange 22). Further, the heat insulating members 33 and 34 are in a state of straddling the boundary between the duct body 26 and the duct flange 27 in the downstream duct 12. Further, the heat insulating members 33 and 34 are in contact with the side surface of the chamber body 15 in close contact with each other.

  Next, the configuration of the collective heat insulating portion 32 will be described with reference to FIG. 4A and 4B are diagrams showing the configuration of the collective heat insulating portion 32. FIG. 4A is a cross-sectional view taken along line AA in FIG. 3, and FIG. 4B is a front view of the inner heat insulating member 33. In addition, in FIG.4 (b), the duct connection part 23 is illustrated with the virtual line.

  As shown in FIG. 4A, in the air conditioning chamber 13, the plurality of downstream connection portions 17 are arranged along two directions that extend along one side surface of the chamber body 15 and intersect each other. One of these two directions is a horizontal direction, and the other is an oblique direction inclined with respect to the vertical direction. M downstream connection parts 17 are arranged along the horizontal direction, and n pieces are arranged along the oblique direction. In this embodiment, m = 3 and n = 2.

  The downstream connection portions 17 are arranged in two upper and lower rows. When the upper row is referred to as a first row A1 and the lower row is referred to as a second row A2, each downstream connection portion 17 in the first row A1 It has a positional relationship that does not overlap in the vertical direction with each downstream connection portion 17 in the second row A2. In this case, the separation distances of the centers O of the downstream connecting portions 17 that are adjacent to each other along the horizontal direction are the same (for example, 20 cm) in both the first row A1 and the second row A2. Let L1 be the separation distance.

  In the horizontal direction, the center O of one downstream connection portion 17 of the first row A1 and the second row A2 is arranged at the center of each center O of the other downstream connection portion 17 adjacent to each other. In this case, the separation distance L2 in the horizontal direction between the downstream connection portions 17 adjacent in the oblique direction is ½ (for example, 10 cm) of the separation distance L1. Further, the vertical separation distance L3 between the center O of the downstream connection portion 17 in the first row A1 and the center O of the downstream connection portion 17 in the second row A2 is smaller than the separation distance L1 and 1 of the separation distance L1. / 2 (for example, 18.4 cm).

  In the present embodiment, the downstream ducts 12 are respectively connected to all of the plurality of downstream connection portions 17, and each of the downstream connection portions 17 forms a duct connection portion 23. In this case, the center O of the downstream connection portion 17 is also the center O of the duct connection portion 23. Further, the outer diameter R of the duct connection portion 23 is smaller than the separation distance L1 between the adjacent downstream connection portions 17 (for example, 18 cm). In this case, in each of the first row A1 and the second row A2, the adjacent duct connection portions 23 are separated by a predetermined distance (for example, 2 cm). Further, the duct connection portion 23 in the first row A1 and the duct connection portion 23 in the second row A2 are also separated by a predetermined distance, and the separation distance is the duct connection portion in each of the first row A1 and the second row A2. It is larger than the separation distance between the two.

  In the duct assembly portion 31, the inner heat insulating member 33 and the outer heat insulating member 34 are in close contact with the outer peripheral surface of each duct connecting portion 23. Further, at the boundary portion between the inner heat insulating member 33 and the outer heat insulating member 34, the outer peripheral surface of the inner heat insulating member 33 and the inner peripheral surface of the outer heat insulating member 34 are overlapped with each other.

  The inner heat insulating member 33 includes a filling portion 41 that is filled inside the center O of the downstream connection portion 17 (duct connection portion 23) in the duct assembly portion 31, and an extending portion 42a that extends outward from the center O. ~ 42c. When the centers O of the duct connecting portions 23 adjacent to each other along the outer peripheral side of the duct assembly portion 31 are connected by an imaginary line N, the filling portion 41 is disposed in an inner region surrounded by the imaginary line N, and the extending portion 42a. ˜42c are arranged in the outer region outside the virtual line N. Between the adjacent duct connection portions 23, there is a narrowest position where the separation distance between the duct connection portions 23 is the smallest, and the narrowest position is a position overlapping the virtual line N. In this case, the inner heat insulating member 33 is in a state of straddling the narrowest position (position overlapping the imaginary line N), and the boundary between the filling portion 41 and the extending portions 42a to 42c is at the narrowest position.

  As shown in FIG. 4B, among the extending portions 42a to 42c, the first extending portion 42a is disposed between the adjacent duct connection portions 23 in the first row A1, and the second extending portion 42a to 42c. The portion 42b is disposed between the adjacent duct connection portions 23 in the second row A2, and the third extending portion 42c is formed of the duct connection portion 23 in the first row A1 and the duct connection portion 23 in the second row A2. It is arranged between. A plurality of (for example, two) first extending portions 42a are arranged along the first row A1, and a plurality of (for example, two) second extending portions 42b are arranged along the second row A2. Yes. The third extending portions 42c are disposed on both sides of the filling portion 41 in the horizontal direction.

  The first extending portion 42 a extends upward from the filling portion 41, and the width dimension gradually increases as the distance from the filling portion 41 increases. The second extending portion 42 b extends downward from the filling portion 41, and the width dimension gradually increases as the distance from the filling portion 41 increases. The third extending portion 42c extends in a direction away from the filling portion 41 along a direction orthogonal to the boundary portion with the filling portion 41, and the width direction gradually increases as the distance from the filling portion 41 increases. It has become. In this case, the extending portions 42 a to 42 c are all formed in a tapered shape, and are in contact with the outer peripheral surface of the duct connecting portion 23.

  In the extending portions 42a to 42c, the extending dimension L4 from the filling portion 41 is smaller than the radius (R / 2, for example, 9 cm) of the duct connecting portion 23 (for example, 8.5 cm). In this case, on the outer peripheral side of the duct connection portion 23 in the first row A1, the adjacent first extending portions 42a are separated from each other, and on the outer peripheral side of the duct connection portion 23 in the second row A2, the second adjacent The extending portions 42b are separated from each other.

  In the collective heat insulating part 32, the duct connecting part 23 is received by the receiving part 45 formed in the inner heat insulating member 33, not the way that the inner heat insulating member 33 enters the gap between the duct connecting parts 23. Can be perceived as being. In this case, the receiving portion 45 penetrates the inner heat insulating member 33 in the thickness direction, and a plurality of the receiving portions 45 are arranged along the plate surface of the inner heat insulating member 33. The receiving portion 45 is formed by the outer peripheral surface of the inner heat insulating member 33 being recessed inward, and the inner heat insulating member 33 has an opening portion that opens the receiving portion 45 toward the outer peripheral side of the inner heat insulating member 33. 46 is provided.

  Here, the receiving portion 45 is formed by the extending portions 42 a to 42 c and the filling portion 41 that are adjacent to each other with the receiving portion 45 interposed therebetween. In addition, on the outer side of the imaginary line N of the inner heat insulating member 33, the separated portion of the extending portion 42 adjacent to the receiving portion 45 forms an open portion 46.

  Returning to the description of FIG. 4A, in the extended portions 42 a to 42 c, the outer surface facing the outer peripheral side of the duct assembly portion 31 overlaps with the inner peripheral surface of the outer heat insulating member 34. Here, although the extension parts 42a-42c exist in the inner peripheral side of the duct assembly part 31 rather than the duct connection part 23, the outer side heat insulating member 34 is pressed against the duct connection part 23, Thus, the inner peripheral surface of the outer heat insulating member 34 is in contact with the outer surfaces of the extending portions 42a to 42c. Moreover, the boundary part of the extension parts 42a-42c and the outer side heat insulation member 34 is extended linearly along the arrangement direction of the duct connection part 23 adjacent on both sides of the boundary part.

  Next, a procedure for attaching the collective heat insulating portion 32 to the branch portion of the air conditioning equipment 10 will be described with reference to FIG. FIG. 5 is a diagram illustrating a procedure for attaching the collective heat insulating portion 32.

  First, as shown in FIG. 5A, the downstream duct 12 is connected to each downstream connection portion 17 of the air conditioning chamber 13. Then, as shown in FIG. 5 (b), the inner heat insulating member 33 is pushed into the gaps between the duct connection portions 23 in the duct assembly portion 31. For example, the inner heat insulating member 33 is pushed between the duct connecting portion 23 in the first row A1 and the duct connecting portion 23 in the second row A2, so that the inner heat insulating member 33 extends along the rows A1 and A2. Then, the first extending portion 42a is pulled upward (from the first row A1 side) toward the duct connecting portion 23, and the second extending portion 42b is duct connected to the lower portion (second row A2 side). Pulling out from between the portions 23, pulling out from between the duct connecting portions 23 with the third extending portion 42 c facing sideways.

  Here, in the inner heat insulating member 33, the first extending portion 42 a and the second extending portion 42 b are arranged at positions that do not overlap vertically with the filling portion 41 interposed therebetween. If the relative position of the member 33 is properly aligned in the left-right direction, the first extension portion 42a does not reach the gap between the duct connection portions 23 in the second row A2, and the second extension portion 42b is the first extension portion 42b. Since it does not reach the gap between the duct connecting portions 23 in the row A1, the first extending portion 42a is pulled downward, and the second extending portion 42b is pulled upward. Can be suppressed.

  Thereafter, as shown in FIG. 5B, the long outer heat insulating member 34 is wound around the duct assembly portion 31. In this case, both end portions of the outer heat insulating member 34 are overlapped with each other on the outer peripheral side of the duct assembly portion 31, and the overlapped portions are joined with an adhesive or the like. Further, the inner side surface of the outer heat insulating member 34 is bonded to the outer side surface of the inner heat insulating member 33 and the outer peripheral surface of the duct connection portion 23 with an adhesive or the like.

  According to the embodiment described in detail above, the following excellent effects can be obtained.

  Since the inner heat insulating member 33 and the outer heat insulating member 34 are collectively attached to each duct connection portion 23 of the duct assembly portion 31, compared to a configuration in which separate heat insulating members are attached to each duct connection portion 23. Thus, the number of heat insulating members to be used is small, and the formation work of the collective heat insulating portion 32 can be suppressed from becoming complicated. Moreover, since the inner heat insulating member 33 is molded into a shape that matches the gap between the duct connecting portions 23, the inner heat insulating member 33 is ducted in a state where the plurality of downstream ducts 12 are connected to the air conditioning chamber 13. The operation | work pushed into the clearance gap between the connection parts 23 and the operation | work which contacts the outer side heat insulation member 34 to the inner side heat insulation member 33 can be facilitated. Therefore, a heat insulating structure can be suitably constructed for the connecting portion between the downstream duct 12 and the air conditioning chamber 13.

  In the gap between the duct connecting portions 23 adjacent to each other in the direction in which the outer heat insulating member 34 extends, the inner heat insulating member 33 only needs to be pulled out to at least the narrowest position. It is not necessary to push in toward the inside of 31. Moreover, by pulling out the inner heat insulating member 33 toward the outside of the duct collecting portion 31, the filling portion 41 of the inner heat insulating member 33 is in close contact with the outer peripheral surface of the duct connecting portion 23 inside the duct collecting portion 31 from the narrowest position. It becomes easy to do. Therefore, the filling part 41 can be installed in a proper state in the gap between the duct connection parts 23.

  Since the inner heat insulating member 33 has the extended portion 42 extending from the filling portion 41, the extended portion 42 is connected to the duct even when the entire inner heat insulating member 33 is pushed into the gap between the duct connecting portions 23. The inner heat insulating member 33 can be installed in an appropriate state by performing an easy operation of pulling out toward the outside of the collecting portion 31. And since the boundary part of the inner side heat insulation member 33 and the outer side heat insulation member 34 is linear, the operation | work which piles up these heat insulation members 33 and 34 in the mutually closely_contact | adhered state becomes easy.

  Since the inner heat insulating member 33 has the open portion 46, an operation of winding the adjacent extension portions 42 around the duct connection portion 23 around the duct connection portions 23 between the extension portions 42 is performed. You don't have to. Further, if the extending portion 42 is too large, it becomes difficult to draw the extending portion 42 toward the outside of the duct assembly portion 31 from the gap between the duct connecting portions 23. It is preferable not to have a portion that wraps around the outer peripheral surface of the connection portion 23 in consideration of drawing out the extending portion 42 from the gap between the duct connection portions 23.

  In the duct assembly portion 31, the duct connection portions 23 are arranged in two rows. Unlike the configuration in which the duct connection portions 23 are arranged in three rows, the gaps between the duct connection portions 23 are separated by one. The inner heat insulating member 33 can be filled. Accordingly, it is not necessary to perform a difficult operation of installing a plurality of inner heat insulating members 33 in the gaps between the duct connection portions 23 and closely contacting the inner heat insulation members 33 in the gaps between the duct connection portions 23.

And since each duct connection part 23 of 1st row | line A1 and each duct connection part 23 of 2nd row | line A2 are arrange | positioned in the position mutually shifted in the direction orthogonal to the direction where these row | line | columns A1 and A2 extend, Compared to the configuration in which the arrangement of the duct connection portions 23 in the first row A1 and the duct connection portions 23 in the second row A2 is not shifted, the duct connection portions in the arrangement direction of the first row A1 and the second row A2. The installation range of 23 is reduced, and the distance between the duct connection portion 23 in the first row A1 and the duct connection portion 23 in the second row A2 is increased. Accordingly, a plurality of duct connection portions 23 can be compactly integrated in the duct assembly portion 31, and the inner heat insulating member is formed in the gap between the duct connection portions 23 in the first row A1 and the duct connection portions 23 in the second row A2. The heat insulation performance by 33 can be ensured satisfactorily.
Since the duct connection portion 23 of the first row A1 and the duct connection portion 23 of the second row A2 are not arranged in a direction orthogonal to the rows A1 and A2, the shape of the inner heat insulating member 33 is the same as that of the first row A1. It is not line-symmetric with respect to the boundary line with the second row A2. For this reason, even if it is the state which pushed the inner side heat insulation member 33 into the inner side area | region of the duct assembly part 31, it is possible to distinguish the extension parts 42a-42c, and each extension part 42a-42c is an appropriate direction. Can be pulled out towards Therefore, for example, it is possible to suppress the occurrence of an erroneous operation of pulling out the first extending portion 42a toward the second row A2.

[Other Embodiments]
The present invention is not limited to the description of the above embodiments, and may be implemented as follows, for example.

  (1) The air conditioning chamber 13 may be connected not to the upstream duct 11 but to an air conditioner such as an air conditioner or a ventilator. For example, as shown in FIG. 6, the air conditioning chamber 13 is connected to an indoor unit 51 as an air conditioner. In this structure, the return air part 52 for taking in the air of living space as return air is attached to the indoor unit 51, and the return air part 52 is connected to the return air duct. In this case, the return air duct corresponds to the upstream duct 11. In the indoor unit 51, conditioned air is generated from the return air, and the conditioned air is supplied to the air-conditioned chamber 13. Even in this configuration, the air conditioning chamber 13 and the plurality of downstream ducts 12 form a branched portion of the air conditioning equipment 10.

  (2) In the above-described embodiment, the chamber flange 22 of the air conditioning chamber 13 is inserted into the duct flange 27 of the downstream duct 12 in the duct connection portion 23, but the duct flange 27 of the downstream duct 12 is connected to the air conditioning chamber 13. It may be inserted into the chamber flange 22. Even in this case, in the duct connecting portion 23, the portion where the duct flange 27 and the chamber flange 22 overlap is the low heat insulating portion 23a.

  (3) The outer heat insulating member 34 may have a entering portion that enters a gap between adjacent duct connection portions 23. For example, as shown in FIG. 7, the outer heat insulating member 34 has an outer peripheral portion 61 that forms an outer peripheral surface of the outer heat insulating member 34 and a entering portion 62 that enters a gap between the duct connecting portions 23. The intrusion portion 62 extends from the outer peripheral portion 61 toward the inner peripheral side of the duct assembly portion 31.

  In this configuration, the outer peripheral surface of the extending portion 42 of the inner heat insulating member 33 and the inner peripheral surface of the entering portion 62 of the outer heat insulating member 34 overlap, and the boundary portion between the extending portion 42 and the entering portion 62 is It is arranged on the outer peripheral side of the duct assembly portion 31 rather than the narrowest position of the gap between the adjacent duct connection portions 23. Further, on the outer peripheral side of the boundary portion between the extending portion 42 and the entering portion 62, the entering portion 62 is overlapped with the outer peripheral surface of the duct connecting portion 23.

  According to this configuration, the length of the boundary portion between the inner heat insulating member 33 and the outer heat insulating member 34 is smaller than that in the configuration in which the outer heat insulating member 34 does not have the entry portion 62, so that the adjacent duct connection In the gap between the portions 23, the inner heat insulating member 33 and the outer heat insulating member 34 are easily brought into close contact with each other.

  Note that the boundary portion between the extending portion 42 and the entering portion 62 may be disposed at a position overlapping the narrowest position.

  (4) In the above embodiment, the boundary between the outer heat insulating member 34 and the inner heat insulating member 33 extends linearly along the direction in which the duct connecting portions 23 adjacent to each other with the boundary interposed therebetween. You may extend linearly along the direction which cross | intersects with a row direction. Moreover, the boundary part of the outer side heat insulation member 34 and the inner side heat insulation member 33 does not need to extend linearly. For example, the extending portion 42 of the inner heat insulating member 33 is configured to protrude beyond the duct assembly portion 31 from a tangent line connecting the adjacent duct connecting portions 23 with the extending portion 42 interposed therebetween.

  In this case, the inner heat insulating member 33 has a protruding portion that protrudes outside the tangent line connecting the adjacent duct connecting portions 23 in the outer portion of the duct assembly portion 31 in a state before the outer heat insulating member 34 is attached. The outer heat insulating member 34 is attached to the outer side of the inner heat insulating member 33 in a state where the protruding portion is pressed. According to this structure, since the protrusion part in the inner side heat insulation member 33 is pressed and the outer side heat insulation member 34 is attached, the adhesiveness of the inner side heat insulation member 33 and the outer side heat insulation member 34 increases, and the desired heat insulation performance is obtained. It will be. Moreover, the outer heat insulating member 34 does not need to enter the gap between the adjacent duct connection portions 23, and a heat insulating material having a uniform thickness can be used as the outer heat insulating member 34.

  In addition, in the protruding part, the extension dimension L4 of the extending part 42 from the filling part 41 (imaginary line N) is the largest at the center position of the duct connecting part 23 adjacent to the extending part 42. It is preferable that it becomes small as it approaches the duct connection part 23. Even in this case, a configuration in which the outer heat insulating member 34 overlaps both the outer peripheral surface of the inner heat insulating member 33 (the outer peripheral surface of the extending portion 42) and the outer peripheral surface of the duct connecting portion 23 can be realized.

  (5) In the above embodiment, the adjacent extending portions 42 are spaced apart from each other across the duct connecting portion 23 on the outer peripheral side of the duct assembly portion 31, but these extending portions 42 may be in contact with each other. . For example, one of the extending portions 42 adjacent to each other with the duct connecting portion 23 interposed therebetween is overlapped with the other from the outer peripheral side. In this case, the outer heat insulating member 34 is disposed on the outer peripheral side of the duct connection portion 23 via the extending portion 42, and reinforces the overlapping portion of the extending portions 42.

  DESCRIPTION OF SYMBOLS 10 ... Air-conditioning duct, 12 ... Downstream duct as an air-conditioning duct, 13 ... Air-conditioning chamber, 31 ... Duct gathering part, 32 ... Collecting heat insulation part, 33 ... Inner heat insulation member, 34 ... Outer heat insulation member, 42 ... Extension part.

Claims (8)

Multiple air conditioning ducts;
An air conditioning chamber to which the plurality of air conditioning ducts are connected;
A duct assembly portion in which a plurality of duct connection portions to which the air conditioning chamber and the air conditioning duct are connected are gathered with respect to one side surface of the air conditioning chamber;
A collective heat insulating part attached to the duct collective part;
With
The collective heat insulating part is
The inner heat insulating member provided in the gap in a state of being in contact with the outer peripheral surface of the duct connection part, which is molded into a shape that matches the gap between the duct connection parts in the duct assembly part,
An outer heat insulating member provided outside the inner heat insulating member and covering the duct assembly portion from the outside of the duct assembly portion;
Have
An air conditioning system for a building, wherein an outer surface facing the outside of the duct assembly portion in the inner heat insulating member and an inner surface facing the duct assembly portion side of the outer heat insulating member are overlapped.   The inner heat insulating member is disposed at the narrowest position where the separation distance between the duct connecting portions is the smallest between the adjacent duct connecting portions in a state where the outer heat insulating member is stretched. The building air conditioning equipment according to claim 1.   The inner heat insulating member has an extending portion that extends to the outside of the duct assembly portion from the narrowest position, and the extending portion overlaps the inner surface of the outer heat insulating member. The building air conditioning equipment according to claim 2, wherein   4. The building air conditioning equipment according to claim 3, wherein a boundary line between the extending portion and the outer heat insulating member is a straight line extending along an arrangement direction of the adjacent duct connecting portions. A plurality of the extending portions are provided side by side along the direction in which the outer heat insulating member extends,
The adjacent extending portions are separated from each other on the outer peripheral side of the air conditioning duct, and the outer heat insulating member is overlapped on the outer peripheral surface of the air conditioning duct in the separated portion. Air conditioning equipment for buildings according to 3 or 4.   The building air conditioning equipment according to any one of claims 1 to 5, wherein a plurality of the duct connecting portions are arranged in two rows.   The plurality of duct connection portions are arranged in a plurality of rows parallel to each other, and among the adjacent rows, the duct connection portions in one row and the duct connection portions in the other row extend in a direction in which each row extends. The building air conditioning equipment according to any one of claims 1 to 6, wherein the air conditioning equipment is disposed at positions shifted from each other in a direction perpendicular to the vertical direction. A building air conditioning system in which a plurality of air conditioning ducts are connected to the air conditioning chamber,
A duct assembly part in which a plurality of duct connection portions of the air conditioning chamber and the air conditioning duct are assembled on one side surface of the air conditioning chamber;
A collective heat insulating part attached to the duct collective part;
With
The collective heat insulating part is
The inner heat insulating member provided in the gap in a state of being in contact with the outer peripheral surface of the duct connection part, which is molded into a shape that matches the gap between the duct connection parts in the duct assembly part,
An outer heat insulating member covering the duct assembly part from the outside of the duct assembly part;
Applied to air conditioning equipment in buildings with
Forming the duct assembly by connecting the air conditioning duct to the air conditioning chamber;
Pushing the inner heat insulating member into the gap between the duct connecting portions in the duct assembly part;
The outer heat insulating member with respect to the duct assembly portion such that an inner surface of the outer heat insulating member facing the duct assembly portion side overlaps an outer surface of the inner heat insulation member facing the outer side of the duct assembly portion. Mounting process,
The manufacturing method of the air-conditioning equipment characterized by comprising.

Images