Heat exchange ventilation system

Abstract

To provide a heat exchange type ventilation device that can reduce the amount of contents falling out through the opening at the bottom of the enclosure. [Solution] The heat exchange ventilation device 100 comprises a housing 30 having a bottom surface 30g with an open center, a top surface 30a facing the bottom surface 30g, a first side surface 30b, and a second side surface 30c facing the first side surface 30b; an outside air intake port 9 provided on the first side surface 30b; an exhaust outlet port 10 provided on the first side surface 30b; a first member 5 that is inserted through at least one of the outside air intake port 9 and the exhaust outlet port 10 and is provided on both the inside and outside of the housing 30; and a second member 6 having a first blower 24 and provided on the second side surface 30c side of the first member 5. The first member 5 is provided with a support portion for supporting the second member 6.

Description

Technical Field

[0001] The present disclosure relates to a heat exchange type ventilation device.

Background Art

[0002] As one type of heat exchange type ventilation device, there is known a device installed in a ceiling space and having a ventilation port and an indoor air supply port of the ventilation device (for example, Patent Document 1). Such a device has an outside air intake port for introducing outside air, an exhaust port for discharging indoor air, and a plurality of indoor air supply ports for supplying outside air into the room.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the device described in Patent Document 1, there are cases where the inclusion is attached and detached with the casing attached to the ceiling space during product installation or component replacement. In this case, since the bottom opening of the casing is large, if the front panel provided below the casing is removed, the inclusion enclosed in the casing may fall from the bottom opening.

[0005] The present disclosure has been made to solve the above problems, and an object thereof is to provide a heat exchange type ventilation device capable of reducing the fall of the inclusion from the bottom opening of the housing.

Means for Solving the Problems

[0006] To solve the above problems, a heat exchange ventilation device according to one embodiment of the present disclosure comprises a housing having a bottom surface with an opening in the center, a top surface that is opposite to the bottom surface, a first side surface, and a second side surface that is opposite to the first side surface; an outside air intake port provided on the first side surface; an exhaust outlet provided on the first side surface; a first member that is inserted through at least one of the outside air intake port and the exhaust outlet and is provided both inside and outside the housing; and a second member having a first blower and provided on the second side surface side of the first member, wherein the first member includes a support portion for supporting the second member.

[0007] Furthermore, any combination of the above components, as well as any conversion of the expressions of this disclosure between methods, apparatus, systems, recording media, computer programs, etc., are also valid forms of this disclosure. [Effects of the Invention]

[0008] According to this disclosure, it is possible to provide a heat exchange type ventilation device that can reduce the amount of contents falling out through the opening at the bottom of the enclosure. [Brief explanation of the drawing]

[0009] [Figure 1] This is a perspective view showing a heat exchange ventilation system according to an embodiment of the present disclosure. [Figure 2] Figure 1 schematically shows the supply and exhaust air passages of the heat exchange ventilation system. [Figure 3] Figure 1 is a perspective view showing the housing and first component of the heat exchange ventilation system. [Figure 4] Figure 3 is a perspective view showing the housing with the first component attached and the second component. [Figure 5] Figure 4 is a perspective view showing the housing with the second component attached and the fourth component. [Figure 6] This is a schematic side view showing the state in which the fourth member engages with the first member in Figure 1. [Figure 7] Figure 5 is a perspective view showing the housing with the fourth component attached and the third component. [Figure 8]Figure 3 is a perspective view showing the housing with the first, second, third, and fourth components attached. [Modes for carrying out the invention]

[0010] Hereinafter, embodiments for implementing this disclosure will be described with reference to the attached drawings. The embodiments described below all represent preferred specific examples of this disclosure. Therefore, the numerical values, shapes, materials, components, arrangement and connection configurations of components, as well as the steps (processes) and the order of steps shown in the following embodiments are examples and are not intended to limit this disclosure. Accordingly, among the components in the following embodiments, those components that are not described in the independent claims representing the highest-level concept of this disclosure will be described as arbitrary components. In addition, substantially identical components are denoted by the same reference numerals in each figure, and redundant explanations are omitted or simplified.

[0011] Furthermore, while terms including ordinal numbers such as "first" and "second" are used to describe various components, these terms are used solely to distinguish one component from others, and do not limit the components themselves.

[0012] [Examples] A heat exchange ventilation device 100 according to an embodiment of the present disclosure will be described with reference to the drawings. Figure 1 is a perspective view of the heat exchange ventilation device 100 taken from diagonally below. As shown in Figure 1, the heat exchange ventilation device 100 includes a housing 30. The housing 30 has a bottom surface 30g with an opening in the center, a top surface 30a which is opposite to the bottom surface 30g, a first side surface 30b, and a second side surface 30c which is opposite to the first side surface 30b. The housing 30 has, for example, a substantially box shape. An outside air intake port 9 and an exhaust outlet port 10 are provided on the first side surface 30b.

[0013] An air intake opening 11 and an air return opening 12 are provided on the bottom surface 30g. In this example, the air intake opening 11 and the air return opening 12 are arranged on substantially the same plane, but these openings may be separated vertically.

[0014] The first side 30b, second side 30c, third side 30d, and fourth side 30e of the housing 30 are surfaces that extend vertically and are provided on the front, rear, left, and right sides. The first side 30b and the second side 30c face each other, and the third side 30d and the fourth side 30e face each other. Hereinafter, for convenience, the direction in which the first side 30b and the second side 30c face each other will be referred to as the front-rear direction and will be indicated by arrow X. In the front-rear direction, the side of the first side 30b where the outside air intake 9 and the exhaust outlet 10 are provided will be referred to as "front" relative to the second side 30c, and the opposite direction will be referred to as "rear". The direction in which the third side 30d and the fourth side 30e face each other will be referred to as the left-right direction and will be indicated by arrow Y. The side of the fourth side 30e will be referred to as "right" relative to the third side 30d, and the opposite direction will be referred to as "left". The up-down direction will be indicated by arrow Z. Such directional notation does not restrict the orientation of the heat exchange ventilation system 100.

[0015] An outside air intake port 9 and an exhaust outlet port 10 are each fitted with an outside air intake section 58 and an exhaust outlet section 59, which are shaped to allow connection of exhaust or supply air ducts. The outside air intake section 58 is an intake port that draws outside air, which is the air outside the building, into the heat exchange ventilation device 100 through a duct (not shown). The exhaust outlet section 59 is an outlet that blows inside air, which is the air in the indoor space 17, out of the heat exchange ventilation device 100 through a duct (not shown) to the outside of the building.

[0016] In this example, the air intake opening 11 is a roughly rectangular opening that is shorter front-to-back than left-to-right and is located near the rear second side surface 30c. In this example, the air return opening 12 is a roughly rectangular opening that is shorter front-to-back than left-to-right and is located near the front of the air intake opening 11. For example, the air return opening 12 has approximately the same width from left to right as the air intake opening 11 and a greater height than the air intake opening 11. Each of the air intake opening 11 and the air return opening 12 may or may not have a grille (not shown).

[0017] The louver 38 is provided to cover the air supply opening 11 and the air return opening 12. The louver 38 is a substantially rectangular plate-shaped member that extends substantially parallel to the bottom surface 30g, and is provided at a predetermined distance below the bottom surface 30g. The louver 38 may have substantially the same shape as the bottom surface 30g when viewed from the bottom, or may have a shape that partially or entirely protrudes from the bottom surface 30g, or may partially recede inward from the edge of the bottom surface 30g. The louver 38 may have ventilation holes, but does not have them in this example. The louver 38 has a frame 38b for connecting to the ceiling.

[0018] Figure 2 is a diagram schematically showing the air supply duct 14 and the exhaust duct 15. The heat exchange type ventilation device 100 of the embodiment is preferably installed in the ceiling space of the ceiling 18 of an indoor space 17 such as a living room of a house as shown in Figure 2. The heat exchange type ventilation device 100 has an air supply duct 14 through which the air supply flow 4 flows and an exhaust duct 15 through which the exhaust flow ③ flows. The heat exchange type ventilation device 100 is a device that performs ventilation by simultaneously exhausting the air in the indoor space 17 and supplying the outdoor air. The heat exchange type ventilation device 100 performs heat exchange between the exhaust flow 3, which is the flow of the air in the indoor space 17 taken in from the air return opening 12, and the air supply flow 4 by the outdoor air taken in from the outside air suction portion 58 by the heat exchange element 13. The heat exchange type ventilation device 100 supplies the air supply flow 4 that has exchanged heat with the exhaust flow 3 to the indoor space 17 from the air supply opening 11.

[0019] The heat exchange type ventilation device 100 has a first blower 24 that generates the air supply flow 4 in the air supply duct 14 and a second blower 25 that generates the exhaust flow 3 in the exhaust duct 15. The first blower 24 and the second blower 25 can be configured to include a fan (not shown) and a motor (not shown) for rotating the fan.

[0020] The heat exchange element 13, as an example, has a box shape and is disposed at a position where the air supply duct 14 and the exhaust duct 15 intersect. The heat exchange element 13 supplies the heat quantity of the exhaust flow 3 to be exhausted to the air supply flow 4 to be supplied. Alternatively, the heat exchange element 13 supplies the heat quantity of the air supply flow 4 to be supplied to the heat quantity of the exhaust flow 3 to be exhausted. Thus, the heat exchange element 13 has a heat recovery function.

[0021] The operation of the heat-exchange ventilation system 100 configured in this way will now be explained. As shown in Figure 2, when the first blower 24 is activated, outdoor air OA is drawn into the heat-exchange ventilation system 100 from the outside air intake 58, and an air supply flow 4 is generated in the air supply passage 14. When the second blower 25 is activated, air RA from the indoor space 17 is drawn in from the return air opening 12, and an exhaust flow 3 is generated in the exhaust passage 15. Heat exchange takes place between the exhaust flow 3 and the air supply flow 4 as they pass through the heat exchange element 13. After heat exchange, the air supply flow 4 is supplied to the indoor space 17 through the air supply passage 14 and the air supply opening 11. After heat exchange, the exhaust flow 3 is exhausted to the outdoors through the exhaust passage 15 and the exhaust outlet 59. This operation allows for ventilation of the indoor space 17 while suppressing temperature changes in the indoor space 17.

[0022] Next, the characteristic configuration of the heat exchange ventilation system 100 will be explained. In order to maintain the thermal insulation inside the housing 30, many of the components of the heat exchange ventilation system 100 are made of insulating material such as expanded polystyrene, and it is difficult to fix these components by screw fastening. A configuration in which each component is fixed with minimal use of screw fastening offers excellent ease of installation and maintenance.

[0023] On the other hand, in the heat exchange ventilation device 100, components enclosed within the housing 30 may be attached and detached while the housing 30 is installed in the ceiling space during product installation or component replacement. In this case, because the opening of the bottom surface 30g of the housing 30 is large, if the louvers 38 provided at the bottom of the housing 30 are removed, components enclosed within the housing 30 may fall out through the opening in the bottom surface 30g. This disclosure relates to a technology that can reduce the risk of components falling out through the opening in the bottom surface 30g of the housing 30.

[0024] See also Figures 3 and 4. Figure 3 is a perspective view showing the housing 30 and the first member 5. Figure 4 is a perspective view showing the housing 30 with the first member 5 attached and the second member 6. As shown in these figures, the heat exchange ventilation device 100 comprises a first member 5 that is inserted through at least one of the outside air intake port 9 and the exhaust outlet port 10 and is provided both inside and outside the housing 30, and a second member 6 that has a first blower 24 and is provided on the second side surface 30c side of the first member 5.

[0025] In this example, the first component 5 has a frame 56 fitted inside the housing 30, and an outside air intake portion 58 and an exhaust outlet portion 59 that protrude forward from the frame 56 and penetrate the first side surface 30b. The second component 6 is a heavy component containing the first blower 24 and has a high risk of falling, so it is important that it can be supported more securely.

[0026] Therefore, in the heat exchange ventilation device 100 of the embodiment, the first member 5 is provided with support parts 52 and 54 for supporting the second member 6. With this configuration, the support parts 52 and 54 can more reliably support the second member 6, which is a heavy component, and the risk of the second member 6 falling during product installation or component replacement can be reduced. The support parts 52 and 54 only need to be able to support the second member 6 from below, and may be, for example, a protrusion that engages with a recess of the mating member, or a protrusion that engages with a protrusion of the mating member, or a recess that engages with a protrusion of the mating member.

[0027] See also Figures 5, 6, 7, and 8. Figure 5 is a perspective view showing the housing 30 with the second member 6 attached and the fourth member 8. Figure 6 is a schematic side view showing the state in which the fourth member 8 engages with the first member 5. Figure 7 is a perspective view showing the housing 30 with the third member 7 attached and the fourth member 8. Figure 8 is a perspective view showing the state in which the first member 5, second member 6, third member 7, and fourth member 8 are attached to the housing 30.

[0028] As shown in these figures, the heat exchange ventilation device 100 of the embodiment has a heat exchange element 13 and a third member 7 sandwiched between a second member 6 and a second side surface 30c. In the example of Figure 7, the third member 7 has the heat exchange element 13.

[0029] From the perspective of reducing the risk of falling, it is important to be able to support the heavy second member 6 more securely. Therefore, in the heat exchange type ventilation device 100 of the embodiment, the second member 6 is sandwiched between the third member 7 and the first member 5, and is also supported by support parts 52 and 54. In this case, by sandwiching the second member 6, the heavy first blower 24 can be fixed more securely, and the risk of the blower falling during product installation or parts replacement can be reduced. As shown in Figure 8, the second member 6 is sandwiched in the front-rear direction between the third member 7 and the first member 5. Also, as shown in Figure 4, the second member 6 is supported by support parts 52 and 54.

[0030] In a configuration where the second member 6 having the first blower 24 is supported by only one support, it is conceivable that the force applied to that single support may be excessive. Therefore, in the heat exchange ventilation device 100 of the embodiment, the support parts 52 and 54 include a first support part 52 provided on one end side of the first member 5 and a second support part 54 provided on the other end side of the first member 5, and the first blower 24 is provided between the first support part 52 and the second support part 54 when viewed from the side. In this case, when viewed from the front, having two support parts 52 and 54 positioned to sandwich the first blower 24 allows the force applied to each support part to be distributed, so the first blower 24 can be fixed more securely and the risk of falling can be reduced. As shown in Figures 4 and 5, the two support parts 52 and 54 are positioned spaced apart to the left and right, sandwiching the first blower 24. Also, the two support parts 52 and 54 are positioned spaced apart vertically, sandwiching the first blower 24.

[0031] The first support portion 52 is a rod-shaped portion that protrudes rearward from the upper left portion of the first member 5 and can be fitted in the front-rear direction into the first supported portion 53, which is a recess provided in the second member 6. The second support portion 54 is a recess that is recessed forward in the lower right portion of the first member 5 and can be fitted in the front-rear direction into the rod-shaped second supported portion 55 provided in the second member 6. The second supported portion 55 protrudes forward from the lower right portion of the second member 6.

[0032] If the support surface of the support part is narrow, the support may become unstable. Therefore, in the heat exchange type ventilation device 100 of the embodiment, the first support part 52 is a projection that supports the second member 6 from the bottom surface 30g side, and is provided to support more than half of the front-to-back width W6 of the second member 6. In this case, the support area is increased, and the second member 6 can be supported more stably, so the first blower 24 can be fixed more securely and the risk of falling can be reduced.

[0033] The heat exchange ventilation device 100 of the embodiment includes a fourth member 8 having a second blower 25, and the housing 30 includes a third side surface 30d and a fourth side surface 30e facing the third side surface 30d. The third member 7 is sandwiched between the fourth side surface 30e and the fourth member 8.

[0034] As shown in Figure 7, the third member 7 has a box-shaped case 71 that encloses the heat exchange element 13. The case 71 has a roughly rectangular box shape when viewed from below, and is surrounded by four side walls 72, 73, 74, and 75 that extend vertically, with the bottom surface open. The side walls 72 and 73 extend horizontally and face each other in the front-to-back direction. The side walls 74 and 75 extend horizontally and face each other in the left-to-right direction. The side walls 72, 73, 74, and 75 are formed of an elastically deformable flexible material.

[0035] The case 71 is formed to be slightly larger towards the bottom, and when installed, each side wall is pushed inward, generating pressure acting in the front, back, left, and right directions toward the surrounding members. In particular, the side wall 72 has a biasing portion 76 formed by a notch. When the third member 7 is assembled, the biasing portion 76 is in contact with the second member 6, and the side wall 73 is in contact with the second side surface 30c. In this state, the biasing portion 76 generates a biasing force that biases the second member 6 forward relative to the second side surface 30c.

[0036] Since the fourth component 8 has the second blower 25, it is a heavy component with a high risk of falling, so it is important that it be supported more securely. Therefore, in the heat exchange ventilation device 100 of the embodiment, the fourth component 8 is provided with engaging parts 26 and 28 for being supported by the first component 5 or the housing 30, and the fourth component 8 is sandwiched between the third side surface 30d and the third component 7, and the engaging parts 26 and 28 are supported by at least one of the housing 30 and the first component 5. In this case, since the third component 7 and the fourth component 8 can be supported in two directions, the front-rear direction and the left-right direction, the second blower 25 can be fixed more securely, and the risk of the blower falling during product installation or component replacement can be reduced.

[0037] Here, the engaging portions 26 and 28 only need to be able to support the fourth member 8 having the second blower 25 from below on the first member 5 or housing 30. For example, they may be protrusions that engage with recesses of the mating member, or protrusions that engage with protrusions of the mating member, or recesses that engage with protrusions of the mating member.

[0038] In a configuration where the fourth member 8, which has the second blower 25, is supported by only one engagement portion, it is conceivable that the force applied to that single engagement portion may be excessive. Therefore, in the heat exchange ventilation device 100 of the embodiment, the engagement portions 26 and 28 include a first engagement portion 26 provided on one end side of the fourth member 8 and a second engagement portion 28 provided on the other end side of the fourth member 8. The second blower 25 is provided between the first engagement portion 26 and the second engagement portion 28 in a side view. In this case, by providing two engagement portions 26 and 28 that sandwich the second blower 25 front to back, the force applied to each engagement portion can be distributed, so that the second blower 25 can be fixed more securely and the risk of falling can be reduced.

[0039] See also Figure 6. Figure 6 is a schematic side view showing the state in which the fourth member 8 engages with the first member 5. Figure 6(A) shows the state before engagement, and Figure 6(B) shows the state after engagement. As shown in Figures 5 and 6, the two engaging parts 26 and 28 include a first engaging part 26 and a second engaging part 28 which are spaced apart front to back with the second blower 25 in between. The first engaging part 26 is a plate-shaped portion that protrudes forward from the front side of the fourth member 8 and whose left-right width is shorter than its up-down width. The first engaging part 26 engages with the first engaged part 27 (see also Figure 3), which is concave in shape and recesses forward from the rear side of the first member 5.

[0040] The second engaging portion 28 is a rod-shaped portion that protrudes from the left side of the fourth member 8 toward the third side surface 30d. The second engaging portion 28 engages with the second engaged portion 29 of the side wall portion that protrudes from the third side surface 30d toward the fourth member 8. The second engaged portion 29 can be formed as a cut-out portion that is cut inward (to the right) from the third side surface 30d. The second engaged portion 29 has a wing shape and is positioned so that, when engaged, it can support the second engaging portion 28 from below. As shown by arrows P and Q in Figure 6, the fourth member 8 slides from rear to front, causing the first engaging portion 26 to engage with the first engaged portion 27 and the second engaging portion 28 to engage with the second engaged portion 29.

[0041] Referring to Figures 3, 4, 5, 7, and 8, the procedure for attaching each component to the housing 30 during product installation of the heat exchange ventilation device 100 will be explained. First, as shown in Figure 3, the first component 5 is attached to the first side surface 30b of the housing 30. Next, as shown in Figure 4, the second component 6 is attached to the housing 30 with the first component 5 attached. At this time, the first support portion 52 is fitted into the first supported portion 53, and the second support portion 54 is fitted into the second supported portion 55. Next, as shown in Figure 5, the fourth component 8 is attached to the housing 30 with the second component 6 attached. At this time, the first engaging portion 26 is engaged into the first engaged portion 27, and the second engaging portion 28 is engaged into the second engaged portion 29.

[0042] Next, as shown in Figures 7 and 8, the third member 7 is attached to the housing 30 on which the fourth member 8 is attached. This procedure attaches the first member 5, the second member 6, the third member 7, and the fourth member 8 to the housing 30. By attaching the third member 7, the third member 7 itself is self-held by the biasing force of the biasing portion 76 of the third member 7, and the first member 5 and the second member 6 are biased forward and held to the first side surface 30b. Furthermore, the fourth member 8 is also held to the third side surface 30d and the first member 5 by the third member 7. As a result, the risk of each member falling off during the attachment process can be reduced. Each member can be removed by performing the above procedure in reverse order.

[0043] The features of the heat exchange ventilation device 100 configured in this way will now be described. The heat exchange ventilation device 100 according to this embodiment comprises a housing 30 having a bottom surface 30g with an open center, a top surface 30a which is opposite to the bottom surface 30g, a first side surface 30b, and a second side surface 30c which is opposite to the first side surface 30b; an outside air intake port 9 provided on the first side surface 30b; an exhaust outlet port 10 provided on the first side surface 30b; a first member 5 which is inserted through at least one of the outside air intake port 9 and the exhaust outlet port 10 and is provided both inside and outside the housing 30; and a second member 6 which has a first blower 24 and is provided on the second side surface 30c side of the first member 5, wherein the first member 5 is provided with support parts 52 and 54 for supporting the second member 6.

[0044] With this configuration, the support parts 52 and 54 can more reliably support the second member 6, which is a heavy component, and the risk of the second member 6 falling during product installation or component replacement can be reduced.

[0045] An overview of one aspect of this disclosure is as follows:

[0046] (Item 1) A heat exchange ventilation device (100) comprising: a housing (30) having a bottom surface (30g) with an open center, a top surface (30a) facing the bottom surface (30g), a first side surface (30b), and a second side surface (30c) facing the first side surface (30b); an outside air intake port (9) provided on the first side surface (30b), an exhaust outlet port (10) provided on the first side surface (30b), a first member (5) provided on the inside and outside of the housing (30) through which at least one of the outside air intake port (9) and the exhaust outlet port (10) is inserted; and a second member (6) having a first blower (24) and provided on the second side surface (30c) side of the first member (5), wherein the first member (5) is provided with support parts (52, 54) for supporting the second member (6).

[0047] (Item 2) A heat exchange type ventilation device (100) according to item 1, comprising a heat exchange element (13), a third member (7) sandwiched between the second member (6) and the second side surface (30c), wherein the second member (6) is sandwiched between the third member (7) and the first member (5) and supported by the support parts (52, 54).

[0048] (Item 3) The support portion (52, 54) comprises a first support portion (52) provided on one end side of the first member (5) and a second support portion (54) provided on the other end side of the first member (5), and the first blower (24) is provided between the first support portion (52) and the second support portion (54) in a side view, and is a heat exchange type ventilation device (100) as described in item 2.

[0049] (Item 4) The first support portion (52) is a projection that supports the second member (6) from the bottom surface (30g) side, and is provided to support more than half of the width of the second member (6), as described in item 3, for the heat exchange type ventilation device (100).

[0050] (Item 5) A heat exchange ventilation device (100) according to item 2, comprising a fourth member (8) having a second blower (25), the housing (30) comprising a third side surface (30d) and a fourth side surface (30e) facing the third side surface (30d), the third member (7) being sandwiched between the fourth side surface (30e) and the fourth member (8), the fourth member (8) having engaging portions (26, 28) for being supported by the first member (5) or the housing (30), the fourth member (8) being sandwiched between the third side surface (30d) and the third member (7), and the engaging portions (26, 28) being supported by at least one of the housing (30) and the first member (5).

[0051] (Item 6) The engaging portion (26, 28) comprises a first engaging portion (26) provided on one end of the fourth member (8) and a second engaging portion (28) provided on the other end of the fourth member (8), and the second blower (25) is provided between the first engaging portion (26) and the second engaging portion (28) in a side view, as described in item 5, for the heat exchange type ventilation device (100).

[0052] The present disclosure has been described above based on examples. These examples are illustrative, and it will be understood by those skilled in the art that various modifications are possible for each component or combination of processing steps, and that such modifications are also within the scope of the present disclosure. [Industrial applicability]

[0053] The heat exchange ventilation system according to the present invention is effective for applications as a heat exchange ventilation system aimed at exchanging heat between outside air and indoor air. [Explanation of symbols]

[0054] 3 Exhaust flow, 4 Supply air flow, 5 First component, 6 Second component, 7 Third component, 8 Fourth component, 9 Outside air intake, 10 Exhaust outlet, 11 Supply air opening, 12 Return air opening, 13 Heat exchange element, 14 Supply air passage, 15 Exhaust air passage, 17 Indoor space, 18 Ceiling, 24 First blower, 25 Second blower, 26 First engaging part, 27 First engaged part, 28 Second engaging part, 29 Second engaged part, 30 Housing, 30a Top surface, 30b First side surface, 30c Second side surface, 30d Third side surface, 30e Fourth side surface, 30g Bottom surface, 38 Louver, 38b Frame, 52 First support part, 53 First supported part 54 Second support part, 55 Second supported part, 56 Frame, 71 Case, 72, 73, 74, 75 Side wall parts, 76 Biasing part, 100 Heat exchange type ventilation device.

Claims

1. A housing having a bottom surface with an open center, a top surface opposite the bottom surface, a first side surface, and a second side surface opposite the first side surface, An outside air intake port provided on the first side surface, An exhaust outlet provided on the first side surface, A first member is provided that extends both inside and outside the housing, through which at least one of the outside air intake port and the exhaust outlet port is inserted, A first blower is provided, and a second member is provided on the second side side of the first member, Equipped with, The first member is provided with a support portion for supporting the second member. Heat exchange ventilation system.

2. It has a heat exchange element and comprises a third member that is sandwiched between the second member and the second side surface, The second member is sandwiched between the third member and the first member, and is supported by the support portion. The heat exchange ventilation device according to claim 1.

3. The support portion comprises a first support portion provided on one end of the first member and a second support portion provided on the other end of the first member. The first blower is provided, in a side view, between the first support portion and the second support portion. The heat exchange type ventilation device according to claim 2.

4. The first support portion is a projection that supports the second member from the bottom side, and is provided to support more than half of the width of the second member. The heat exchange ventilation device according to claim 3.

5. It comprises a fourth member having a second blower, The housing comprises a third side and a fourth side facing the third side, The third member is sandwiched between the fourth side and the fourth member. The fourth member is provided with an engaging portion for being supported by the first member or the housing, The fourth member is sandwiched between the third side surface and the third member, and the engaging portion is supported by at least one of the housing and the first member. The heat exchange type ventilation device according to claim 2.

6. The engagement portion comprises a first engagement portion provided on one end of the fourth member and a second engagement portion provided on the other end of the fourth member. The second blower is provided between the first engaging portion and the second engaging portion in a side view. The heat exchange type ventilation device according to claim 5.

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