Heat exchange type ventilation device

Abstract

To provide a heat exchange type ventilation device capable of retaining air-tightness while suppressing manufacturing costs, by using no fixation tool.SOLUTION: A heat exchange type ventilation device 1 includes: a housing 2 having an internal space 30 surrounded by a top surface 101, a bottom surface 102 and side surfaces 104, 106; a first separator 11 having a top plate 11a and separating the internal space 30 to an upper part space 30a belonging to its upper part, a ventilation space 30g and an air supply positive pressure space 30h belonging to its lower part by the top plate 11a; a blower 40 provided to the ventilation space 30g; and the air supply positive pressure space 30h located at the downstream of the ventilation space 30g. The first separator 11 partly abuts a surface to be abutted 13b as the side surface of the housing 2 located on a side opposite to the air supply positive pressure space 30h in the ventilation space 30g, and pressure-contacts an edge part 11m on the side of the air supply positive pressure space 30h to the side of the lower surface 102 by making an edge part 11p on the side of the ventilation space 30g of the first separator 11 slant to the side of the upper surface 101.SELECTED DRAWING: Figure 7

Description

[Technical Field]

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

[0002] It is known that conventional heat exchange type ventilation devices have a configuration including a heat exchanger, an intake port, an outlet port, an air supply duct, and an exhaust duct (for example, Patent Documents 1 and 2). In addition, in order to reduce manufacturing costs, the components of the heat exchange type ventilation device are sometimes joined without using fasteners such as screws (for example, Patent Document 2). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2013-194931 A [Patent Document 2] Japanese Patent Application Publication No. 7-233992 Summary of the Invention [Problem to be solved by the invention]

[0004] If the partition wall separating the intake air duct and the exhaust air duct is fixed without using fasteners such as screws, the pressure difference between the air flowing through the intake air duct and the exhaust air duct can cause the partition wall to deform or shift, potentially making it impossible to maintain the airtightness of the intake air duct or the exhaust air duct. In other words, there is room for improvement in methods for maintaining airtightness without using fasteners.

[0005] Therefore, the present invention is intended to solve the above-mentioned conventional problems, and aims to provide a heat exchange type ventilation device that can maintain airtightness while reducing manufacturing costs by not using fixing devices. [Means for solving the problem]

[0006] To achieve this object, a heat exchange type ventilation device according to one aspect of the present invention includes a housing having an internal space surrounded by a top surface, a bottom surface, and a side surface, a separator having a top plate that divides the internal space into an upper space belonging to an upper portion and a blowing space and a positive pressure space belonging to a lower portion, a blower provided in the blowing space, and a positive pressure space located downstream of the blowing space. A portion of the separator abuts against a contact surface that is a side surface of the housing located on the opposite side of the blowing space from the positive pressure space, and the end of the separator facing the blowing space is tilted upward to press the end of the separator facing the positive pressure space against the bottom surface, thereby achieving the desired object. [Effects of the Invention]

[0007] According to the present invention, it is possible to provide a heat exchange type ventilation device that does not use fixing members, thereby reducing manufacturing costs and maintaining airtightness. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a perspective view showing the appearance of a heat exchange type ventilation device. [Figure 2] FIG. 2 is an exploded perspective view of the heat exchange type ventilation device. [Figure 3] FIG. 3 is a diagram showing the air path configuration in the upper space of the heat exchange type ventilation device. [Figure 4] FIG. 4 is a diagram showing the configuration of an air passage in the lower space of the heat exchange type ventilation device. [Figure 5] FIG. 5 is a top view of the housing and an enlarged view of the joint between the first separator and the foam member. [Figure 6] FIG. 6 is an exploded perspective view of the first separator and the intake air blower. [Figure 7] 7 is a cross-sectional side view of the heat exchange type ventilation device taken along the dashed line AA in FIG. DETAILED DESCRIPTION OF THE INVENTION

[0009] Examples of the present invention will be described below with reference to the drawings. The following embodiments illustrate examples of a heat exchange type ventilation device according to the present invention. The numerical values, shapes, materials, components, and positional relationships of the components shown in the embodiments are merely examples and are not intended to limit the scope of the claims. Furthermore, terms indicating relationships between elements, such as perpendicular and parallel, do not necessarily indicate strict meanings but also include a range of substantial equivalence, for example, a difference of a few percent. Furthermore, the drawings are not necessarily strict illustrations. Substantially identical components in the drawings are designated by the same reference numerals, and redundant explanations may be omitted or simplified. (Embodiment 1) First, the schematic configuration of the heat exchanger ventilation device 1 will be described with reference to Fig. 1. Fig. 1 is a perspective view showing the appearance of the heat exchanger ventilation device 1.

[0010] The heat exchanger ventilation device 1 is suitably installed in the attic or inter-floor space of a building, an air-conditioned room, etc. The heat exchanger ventilation device 1 includes a housing 2 that forms the outer shell of the heat exchanger ventilation device 1.

[0011] As shown in Fig. 1, the housing 2 has an internal space 30 (see Fig. 2 described later) surrounded by an upper surface 101, a lower surface 102, and side surfaces 103 to 106. Note that the terms "upper surface," "lower surface," etc. are used here merely for the sake of convenience, and do not limit the position of the heat exchange type ventilation device 1.

[0012] The top surface 101 is a plate-like member that forms the outer hull of the housing 2, and faces the bottom surface 102 across the internal space 30 of the housing 2. The top surface 101 is also a surface that is approximately perpendicular to the side surfaces 103 to 106. The top surface 101 is a so-called lid that is detachably connected to the side surfaces 103 to 106.

[0013] The lower surface 102 is a plate-like member that forms the outer periphery of the housing 2, and faces the upper surface 101 across the internal space 30 of the housing 2. The lower surface 102 is also a surface that is approximately perpendicular to the side surfaces 103 to 106.

[0014] Side surface 103 is a plate-like member that forms the outer periphery of housing 2, and faces side surface 105 across internal space 30 of housing 2. Side surface 103 is also a surface that is approximately perpendicular to top surface 101 and bottom surface .

[0015] The side surface 104 is a plate-like member that forms the outer periphery of the housing 2, and faces the side surface 106 across the internal space 30 of the housing 2. The side surface 104 is also substantially perpendicular to the upper surface 101 and the lower surface 102.

[0016] Side surface 105 is a plate-like member that forms the outer periphery of housing 2, and faces side surface 103 across internal space 30 of housing 2. Side surface 105 is also a surface that is approximately perpendicular to top surface 101 and bottom surface 102.

[0017] Side surface 106 is a plate-like member that forms the outer shell of housing 2, and faces side surface 104 across internal space 30 of housing 2. Side surface 106 is also a surface that is approximately perpendicular to top surface 101 and bottom surface 102. Furthermore, side surface 106 is provided with outdoor air intake port 4, indoor air supply port 5, indoor air intake port 6, and outdoor air exhaust port 7.

[0018] The outdoor air intake 4 is provided to protrude from the side surface 106, and draws outdoor air into the internal space 30 of the housing 2 through, for example, a duct. The air is guided into the internal space 30 of the housing 2.

[0019] The indoor air intake port 5 is provided to protrude from the side surface 106, and blows air from the internal space 30 indoors via, for example, a duct. In other words, the indoor air intake port 5 guides air from the internal space 30 of the housing 2 indoors.

[0020] The indoor air intake 6 is provided to protrude from the side surface 106, and draws indoor air into the internal space 30 of the housing 2, for example, via a duct. In other words, the indoor air intake 6 guides indoor air into the internal space 30 of the housing 2.

[0021] The outdoor exhaust port 7 is provided to protrude from the side surface 106, and blows out the air in the internal space 30 of the housing 2 to the outdoors via, for example, a duct. In other words, the outdoor exhaust port 7 guides the air in the internal space 30 of the housing 2 to the outdoors.

[0022] That is, all of the outdoor air intake ports 4, indoor air supply ports 5, indoor air intake ports 6, and outdoor exhaust ports 7 are provided on the side surface 106 of the heat exchange type ventilation device 1. The outdoor air intake ports 4 and indoor air intake ports 6 are also collectively referred to as "intake ports." The indoor air intake ports 5 and outdoor exhaust ports 7 are also collectively referred to as "air outlets."

[0023] Next, the internal configuration of the heat exchanger ventilation device 1 will be described with reference to Figures 2 to 4. Figure 2 is an exploded perspective view of the heat exchanger ventilation device 1. Figure 3 is a diagram showing the air flow in the upper space 30a. Figure 4 is a diagram showing the air flow in the lower space 30b.

[0024] As shown in FIG. 2, the heat exchange type ventilation device 1 further includes a heat exchange element 10, a foam member 13, a first separator 11, and a second separator 12.

[0025] The heat exchange element 10 is provided on the upper surfaces of the first separator 11 and the second separator 12 in the internal space 30. In other words, the heat exchange element 10 is provided as a pressing part that presses the first separator 11 and the second separator 12 from the upper surface 101 side. The heat exchange element 10 is formed by laminating heat transfer materials at predetermined intervals. The heat exchange element 10 allows air drawn in through the outdoor air intake 4 (intake air flow 80) and air drawn in through the indoor air intake 6 (exhaust air flow 90) to flow through the heat exchange element 10 without mixing (see FIG. 3). In other words, the heat exchange element 10 exchanges heat between the intake air flow 80 and the exhaust air flow 90.

[0026] The pressing portion presses first separator 11 and second separator 12 from the side of upper surface 101. The pressing portion is also referred to as heat exchange element .

[0027] The foam member 13 is provided in the internal space 30 of the housing 2. In other words, the foam member 13 corresponds to the inner surface of the housing 2. The foam member 13 is provided along the inner surfaces of the side surfaces 103 to 106 and the bottom surface 102. In other words, when the foam member 13 is attached to the housing 2, it forms the internal space 30 surrounded by the foam member 13. The foam member 13 is a synthetic resin molded into a porous shape, such as expanded polystyrene.

[0028] The first separator 11 and the second separator 12 divide the internal space 30 of the housing 2 into an upper space 30a belonging to the upper part and a lower space 30b belonging to the lower part (see FIGS. 3 and 4). The detailed configurations of the first separator 11 and the second separator 12 will be described later. The first separator 11 and the second separator 12 are also collectively referred to as "separators."

[0029] The internal space 30 is a space surrounded by the upper surface 101, the lower surface 102, and the side surfaces 103 to 106. In other words, the internal space 30 is a space surrounded by the foam member 13. The internal space 30 is configured to include an upper space 30a and a lower space 30b.

[0030] As shown in FIG. 3, the upper space 30a is a space belonging to the upper side of the internal space 30. In other words, the upper space 30a is a space on the upper surface 101 side of the internal space 30. The upper space 30a is a space surrounded by the first separator 11, the second separator 12, the upper surface 101, and the upper sides of the side surfaces 103 to 106. The upper space 30a is in communication with the outside of the housing 2 via the outdoor air intake port 4 and the indoor air intake port 6. In other words, air flows into the upper space 30a from the outdoor air intake port 4 and the indoor air intake port 6. More precisely, outdoor air (intake air flow 80) flows in from the outdoor air intake port 4, and indoor air (exhaust air flow 90) flows in from the indoor air intake port 6. The upper space 30a is composed of an intake upper space 30c and an exhaust upper space 30d.

[0031] The upper air supply space 30c is a space in the upper space 30a through which the air supply flow 80 flows. Specifically, the upper air supply space 30c includes a space 30k surrounded by the side surface 103, the side surface 106, the heat exchange element 10, and the second separator 12, and a space 30l surrounded by the side surface 104, the side surface 105, the heat exchange element 10, the upper surface 101, and the first separator 11.

[0032] Space 30k is a space surrounded by side surface 103, side surface 106, heat exchange element 10, and second separator 12. In other words, space 30k is a space located downstream of outdoor air intake port 4 and upstream of heat exchange element 10, and is a space through which supply airflow 80 flows.

[0033] The space 30l is a space surrounded by the side surface 104, the side surface 105, the heat exchange element 10, the upper surface 101, and the first separator 11. In other words, the space 30l is a space located downstream of the heat exchange element 10 and upstream of the lower space 30b (see FIG. 4), and is a space through which the intake air flow 80 flows.

[0034] The upper exhaust space 30d is a space in the upper space 30a through which the exhaust flow 90 flows. Specifically, the upper exhaust space 30d includes a space 30m surrounded by the side surface 105, the side surface 106, the heat exchange element 10, and the first separator 11, and a space 30n surrounded by the side surface 103, the side surface 104, the heat exchange element 10, and the second separator 12.

[0035] Space 30m is a space surrounded by side surface 105, side surface 106, heat exchange element 10, and first separator 11. In other words, space 30m is a space located downstream of indoor air intake port 6 and upstream of heat exchange element 10, and is a space through which exhaust flow 90 flows.

[0036] The space 30n is a space surrounded by the side surface 103, the side surface 104, the heat exchange element 10, and the second separator 12. In other words, the space 30n is a space located downstream of the heat exchange element 10 and upstream of the lower space 30b (see FIG. 4), and is a space through which the exhaust flow 90 flows.

[0037] As shown in FIG. 4, the lower space 30b is a space belonging to the lower side of the internal space 30. In other words, the lower space 30b is a space on the lower surface 102 side of the internal space 30. The lower space 30b is a space surrounded by the first separator 11, the second separator 12, the lower surface 102, and the lower sides of the side surfaces 103 to 106. The lower space 30b is also in communication with the outside of the housing 2 via the indoor air intake port 5 and the outdoor exhaust port 7. In other words, the air in the lower space 30b is blown out from the indoor air intake port 5 and the outdoor exhaust port 7. More precisely, an intake air flow 80 is blown out from the indoor air intake port 5, and an exhaust air flow 90 is blown out from the outdoor exhaust port 7. The lower space 30b is composed of an intake lower space 30e and an exhaust lower space 30f.

[0038] The lower air supply space 30e is a space in the lower space 30b through which the air supply flow 80 flows. Specifically, it is a space located on the side surface 105 side of the lower space 30b, and is a space separated from the lower exhaust space 30f in a manner that prevents ventilation. Note that the term "non-ventilable" has a design meaning, and includes cases in which ventilation is prevented between the two spaces due to gaps that arise due to manufacturing reasons, for example. The lower air supply space 30e is composed of an air supply ventilation space 30g and an air supply positive pressure space 30h.

[0039] The intake air blowing space 30g is a space located upstream of the positive intake air pressure space 30h. An intake air flow 80 flows into the intake air blowing space 30g from the upper intake air space 30c. The intake air blowing space 30g blows the intake air flow 80 toward the positive intake air pressure space 30h. The intake air blowing space 30g is equipped with an intake air blower 40. The intake air blowing space 30g and the exhaust air blowing space 30i, which will be described later, are collectively referred to as the "blowout space."

[0040] The intake air blower 40 is provided in the intake air blowing space 30g. The intake air blower 40 is a so-called blower that generates an air flow by rotating a fan that is a component of the intake air blower 40. The intake air blower 40 generates an intake air flow 80. The intake air blower 40 and the exhaust air blower 50, which will be described later, are collectively referred to as "blowers."

[0041] The positive air supply pressure space 30h is a space located downstream of the positive air supply air delivery space 30g. An air supply flow 80 flows into the positive air supply pressure space 30h from the positive air supply air delivery space 30g. The positive air supply pressure space 30h also blows out the air supply flow 80 from the indoor air supply port 5. The positive air supply pressure space 30h and the positive air exhaust pressure space 30j, which will be described later, are collectively referred to as "positive pressure spaces."

[0042] The lower exhaust space 30f is a space in the lower space 30b through which the exhaust flow 90 flows. Specifically, it is a space located on the side surface 103 side of the lower space 30b, and is a space separated from the lower air supply space 30e in a manner that prevents ventilation. Note that the term "non-ventilable" has a design meaning, and includes cases in which ventilation is possible between the two spaces due to manufacturing reasons, for example. The lower exhaust space 30f includes an exhaust air blowing space 30i and an exhaust positive pressure space 30j.

[0043] The exhaust air blowing space 30i is a space located upstream of the exhaust positive pressure space 30j. An exhaust flow 90 flows into the exhaust air blowing space 30i from the upper exhaust space 30d. The exhaust air blowing space 30i blows the exhaust air flow 90 toward the exhaust positive pressure space 30j. The exhaust air blowing space 30i is equipped with an exhaust fan 50. The intake air blowing space 30g and the exhaust air blowing space 30i are collectively referred to as "air blowing spaces."

[0044] The exhaust fan 50 is provided in the exhaust air blowing space 30i. The exhaust fan 50 is a so-called fan that generates an air flow by rotating a fan that constitutes the exhaust fan 50. The exhaust fan 40 generates an exhaust flow 90. The intake air fan 40 and the exhaust fan 50 are also collectively referred to as "fans."

[0045] The positive exhaust pressure space 30j is a space located downstream of the exhaust air blowing space 30i. An exhaust flow 90 flows into the positive exhaust pressure space 30j from the exhaust air blowing space 30i. The positive exhaust pressure space 30j also blows out the exhaust flow 90 from the outdoor exhaust port 7. The positive air supply pressure space 30h and the positive exhaust pressure space 30j are collectively referred to as "positive pressure spaces."

[0046] Here, the air passage through which the intake airflow 80 flows is referred to as an intake air passage 110, and the air passage through which the exhaust airflow 90 flows is referred to as an exhaust air passage 120.

[0047] The intake airflow duct 110 is an airflow path through which the intake airflow 80 flows. Specifically, the intake airflow duct 110 is , the outdoor air intake port 4, the upper air supply space 30c (space 30k), the heat exchange element 10, the upper air supply space 30c (space 30l), the air supply blowing space 30g, the positive air supply pressure space 30h, and the indoor air supply port 5. In other words, the air supply air passage 110 guides outdoor air into the room via the internal space 30.

[0048] The exhaust airflow duct 120 is an airflow path through which the exhaust flow 90 flows. Specifically, the exhaust airflow duct 120 is an airflow path that passes through the indoor air intake port 6, the upper exhaust space 30d (space 30m), the heat exchange element 10, the upper exhaust space 30d (space 30n), the exhaust air blowing space 30i, the exhaust positive pressure space 30j, and the outdoor exhaust port 7. In other words, the exhaust airflow duct 120 guides indoor air to the outdoors via the internal space 30.

[0049] Here, the state of connection between first separator 11 and foam member 13 will be described with reference to Fig. 5. Fig. 5 is an enlarged view of the joint between first separator 11 and foam member 13.

[0050] The first separator 11 includes a locking portion 20 .

[0051] The locking portions 20 are convex portions that protrude downward from the end portions of the first separator 11 on the side surface 103 side and the end portions of the first separator 11 on the side surface 105 side. In other words, the locking portions 20 are convex portions that protrude toward the locked portions 21 of the foam member 13. The locking portions 20 are locked to the locked portions 21, thereby connecting the first separator 11 to the foam member 13. In other words, the locking portions 20 are fixed to the foam member 13 without using fasteners such as screws.

[0052] The foam member 13 has a locked portion 21 .

[0053] The locked portion 21 is a groove provided in the foam member 13. In other words, the locked portion 21 is a recess provided for locking the locking portion 20. By locking the locking portion 20, the locked portion 21 brings the first separator 11 and the foam member 13 into close contact with each other, and seals the air in the positive air supply pressure space 30h.

[0054] Next, the detailed configuration of first separator 11 will be described with reference to Figures 6 and 7. Figure 6 is an exploded perspective view of first separator 11 and supply air blower 40. Figure 7 is a side cross-sectional view of heat exchange type ventilation device 1 taken along dashed line AA in Figure 1.

[0055] As shown in FIG. 6, the first separator 11 includes a top plate 11a, a side plate 11b, and a bottom plate 11c.

[0056] The top plate 11a is a plate-like portion corresponding to the top surface of the first separator 11. In top view, the top plate 11a has a shape in which a portion of a substantially circular portion 11d and a portion of a substantially trapezoidal portion 11e overlap each other. The top plate 11a also has an opening along the circular periphery of the intake fan 40a, through which the intake airflow 80 is guided from the upper space 30a to the lower space 30b. Furthermore, as shown in FIG. 7 , the top plate 11a divides the internal space 30 into the upper space 30a, which belongs to the upper side, and the lower space 30b, which belongs to the lower side. An end 11m of the top plate 11a on the side of the side 106 abuts against the inner surface of the side 106, more specifically, against the foam member 13. An end 11p of the top plate 11a on the side of the side 104 abuts against the inner surface of the side 104, more specifically, against the foam member 13. In other words, the top plate 11a is provided to cover the upper portions of the air supply / blowing space 30g and the positive air supply pressure space 30h.

[0057] The circular portion 11d is a plate-like portion that is substantially circular when viewed from above, and constitutes a part of the top plate 11a.

[0058] The trapezoidal portion 11e is a plate-like portion that is substantially trapezoidal when viewed from above, and constitutes a part of the top plate 11a.

[0059] As shown in FIG. 6, the side plate 11b is a plate-like portion that extends downward from the outer peripheral edge of the circular portion 11d of the top plate 11a and has a substantially circular shape in top view. The leading end of the side plate 11b in the extending direction is inserted into a groove 65 in the bottom plate 11c, thereby engaging with the bottom plate 11c. The side plate 11b is provided independently of the side surfaces 103 to 106 of the housing 2. The side plate 11b forms an air supply / blowing space 30g surrounded by the top plate 11a, the side plate 11b, and the bottom plate 11c. In other words, the air supply / blowing space 30g is formed by being surrounded by the top plate 11a, the side plate 11b, and the bottom plate 11c. The side plate 11b is not included in the configuration of the positive air supply pressure space 30h. In other words, the positive air supply pressure space 30h is formed by being surrounded by the top plate 11a and the foam member 13.

[0060] The bottom plate 11c is a plate-like member that faces the top plate 11a across the intake fan 40a. The bottom plate 11c has a substantially circular shape when viewed from above. In other words, the bottom plate 11c has approximately the same outer shape as the circular portion 11d of the top plate 11a when viewed from above. The bottom plate 11c is provided independently of the lower surface 102 of the housing 2. The first separator 11 forms an intake air blowing space 30g that is surrounded by the top plate 11a, the side plate 11b, and the bottom plate 11c. In other words, the intake air blowing space 30g is formed by being surrounded by the top plate 11a, the side plate 11b, and the bottom plate 11c. The bottom plate 11c is not included in the configuration of the positive intake air pressure space 30h. In other words, the positive intake air pressure space 30h is formed by being surrounded by the top plate 11a and the foam member 13. The bottom plate 11c includes an upright portion 60 and a groove portion 65.

[0061] As shown in FIG. 6 , the standing portion 60 stands in a direction from the outer peripheral edge of the bottom plate 11c toward the top plate 11a and toward the side surface 104. In other words, when the bottom plate 11c is attached to the heat exchanger-type ventilator 1, the standing portion 60 stands in a direction toward the side surface 104 and toward the top surface 101. The standing portion 60 has a substantially annular shape when viewed from above. More specifically, the standing portion 60 is provided in a range of the outer periphery of the bottom plate 11c that roughly overlaps with the circular portion 11d of the top plate 11a when viewed from above. In other words, the standing portion 60 is provided over approximately 90% of the outer periphery of the bottom plate 11c on the side surface 104 side when viewed from above. As shown in FIG. 7 , the tip of the standing portion 60 abuts against the abutment surface 13a. In other words, the standing portion 60 abuts against the inner surface (contact surface 13a) of the housing 2 located on the opposite side of the air supply positive pressure space 30h in the air supply blowing space 30g. That is, approximately 90% of the outer periphery of the bottom plate 11c abuts against the abutment surface 13a. In other words, approximately 90% of the outer periphery of the standing portion 60 abuts against the abutment surface 13a.

[0062] The angle θ between the standing portion 60 and the side plate 11b is not particularly limited, but is preferably in the range of 30°≦θ≦60°. The smaller the angle θ, the easier it is to insert the bottom plate 11c into the heat exchange type ventilation device 1, improving workability. On the other hand, the larger the angle θ, the stronger the repulsive force described below, which is preferable from the perspective of maintaining airtightness. In other words, the angle θ may be determined appropriately taking into account the balance between workability and airtightness. Furthermore, the length L of the standing portion 60 in the standing direction is also not particularly limited. Specifically, it is approximately several millimeters to several tens of millimeters, and in this embodiment, it is 10 mm, for example. The length L is the linear distance from the boundary between the bottom plate 11c and the standing portion 60 to the tip of the standing portion 60.

[0063] The groove 65 is a groove that is provided to fit and lock the lower end of the side plate 11b. In other words, the groove 65 has approximately the same shape as the side plate 11b when viewed from above.

[0064] The air supply blower 40 includes an air supply fan 40a and an air supply motor 40b.

[0065] The air supply fan 40a is provided in the air supply blowing space 30g. The air supply fan 40a is fixed to the rotary shaft of the air supply motor 40b. The air supply fan 40a rotates in accordance with the rotation of the air supply motor 40b, thereby generating an air flow (air supply flow 80) that flows from the upper air supply space 30c to the lower air supply space 30e. A sirocco fan, for example, is used as the air supply fan 40a.

[0066] The air supply motor 40b is a motor for rotating the air supply fan 40a. The air supply fan 40a is fixed to the rotary shaft of the air supply motor 40b.

[0067] Next, the air supply operation of the heat exchange type ventilation device 1 will be described with reference to FIG.

[0068] For example, when a user turns on the power of the heat exchanger ventilation device 1 and operation of the heat exchanger ventilation device 1 begins, the intake fan 40a rotates. Specifically, the intake fan 40a blows air from the intake air blowing space 30g toward the positive intake air pressure space 30h. This increases the pressure within the positive intake air pressure space 30g. Specifically, the pressure within the positive intake air pressure space 30h is higher than the pressure within the exhaust upper space 30d adjacent to the positive intake air pressure space 30h via the top plate 11a, i.e., it becomes a positive pressure. In other words, a pressure difference occurs between the positive intake air pressure space 30h and the exhaust upper space 30d, which are adjacent to each other via the top plate 11a. This causes the air within the positive intake air pressure space 30h to flow into the exhaust upper space 30d. Specifically, the air within the positive intake air pressure space 30h pushes up one end of the top plate 11a, for example, on the side surface 106 side, toward the upper surface 101. That is, the air in the positive air supply pressure space 30h creates a gap between the top plate 11a and the foam member 13, and tries to flow into the upper exhaust space 30d.

[0069] Here, when the bottom plate 11c is attached to the heat exchange type ventilation device 1, the tip of the standing portion 60 is pressed against the abutment surface 13a. As a result, a repulsive force is generated in the directions of the upper surface 101 and the side surface 106, causing the end portion 11p of the top plate 11a to tilt toward the upper surface 101 (FIG. 7A). This causes the end portion 11m of the top plate 11a to tilt toward the lower surface 102 (FIG. 7B). In other words, the end portion 11m of the top plate 11a is pressed against the foam member 13a.

[0070] This configuration can prevent a gap from being generated between the top plate 11a and the foam member 13. As a result, the airtightness of the positive air supply pressure space 30h can be maintained.

[0071] The heat exchange element 10 presses against the upper surface of the top plate 11a.

[0072] This configuration can prevent a gap from being formed between the top plate 11a and the foam member 13. As a result, the airtightness of the positive air supply pressure space 30h can be maintained.

[0073] Furthermore, as a result of the rebound of the upright portions 60, the end portion 11p of the first separator 11 is tilted toward the upper surface 101, that is, a gap is generated between the end portion 11p of the first separator 11 and the foam member 13. However, because the air supply / blowing space 30g is surrounded by the top plate 11a, the side plates 11b, and the bottom plate 11c, which are independent of the housing 2, air leakage from the gap between the top plate 11a and the foam member 13 can be suppressed even if the end portion 11p is tilted toward the upper surface 101.

[0074] Furthermore, the positive air supply pressure space 30h is configured without including the side plate 11b and the bottom plate 11c.

[0075] With this configuration, it is only necessary to provide the side plate 11b and the bottom plate 11c on the end portion 11p side, which means that it is possible to reduce material costs and avoid complicating the mold by simplifying the parts, thereby reducing manufacturing costs.

[0076] In this embodiment, an example in which the airtightness inside the air supply passage 110 is maintained has been described, but the same effect can be obtained in the air exhaust passage 120 as well.

[0077] In addition, the heat exchange type ventilation device 1 has all of the intake ports (outdoor intake port 4 and indoor intake port 6) and all of the outlet ports (indoor intake port 5 and outdoor exhaust port 7) on one side (side 106).

[0078] With this configuration, when the heat exchanger ventilator 1 is installed with the side surface 106 facing vertically upward, it is easy to install it in the corner of a room, for example, and it is also easy to attach a duct. In other words, it is possible to provide a heat exchanger ventilator 1 that is easy to install.

[0079] As described above, the heat exchanger type ventilation device 1 can maintain airtightness between the intake airflow path 110 and the exhaust airflow path 120 without using any fasteners such as screws. (Variation) The present invention has been described above based on the embodiments, but the present invention is not limited to the above embodiments, and it can be easily inferred that various improvements and modifications are possible within the scope of the invention without departing from the spirit of the invention.

[0080] In the heat exchanger type ventilation device 1 according to the first embodiment, the standing portions 60 occupy approximately 90% of the outer periphery of the bottom plate 11c, but this is not limiting. For example, even if the standing portions 60 occupy only a few percent of the outer periphery of the bottom plate 11c, the effect of maintaining the above-mentioned airtightness can be obtained by providing the standing portions 60.

[0081] In the heat exchanger type ventilation device 1 according to the first embodiment, the standing portion 60 is provided standing from the outer periphery of the bottom plate 11c, but is not limited thereto. The standing portion 60 may be provided standing from, for example, the side plate 11b.

[0082] An outline of one aspect of the present disclosure is as follows. (Item 1) a housing (2) having an internal space (30) surrounded by an upper surface (101), a lower surface (102), and side surfaces (103 to 106); a separator (11, 12) having a top plate (11a) for dividing the internal space (30) into an upper space (30a) belonging to an upper portion and ventilation spaces (30g, 30i) and positive pressure spaces (30h, 30j) belonging to a lower portion by the top plate (11a); a blower (40, 50) provided in the blowing space (30g, 30i); a positive pressure space (30h, 30j) located downstream of the air blowing space (30g, 30i), A heat exchange type ventilation device (1) in which a part of the separator (11, 12) abuts against an abutting surface (13a) which is an inner surface of the housing (2) located on the opposite side of the positive pressure space (30h, 30j) in the air blowing space (30g, 30i), and an end (11p) of the separator (11, 12) on the air blowing space (30g, 30i) side is inclined toward an upper surface (101) so that an end (11m) on the positive pressure space (30h, 30j) side is pressed against a lower surface (102). (Item 2) a side plate (11b) that is independent of the side surfaces (103 to 106) of the housing (2) in the air blowing space (30g, 30i); a bottom plate (11c) that is independent of the lower surface (102) of the housing (2) in the air blowing space (30g, 30i); The ventilation spaces (30g, 30i) are made up of a top plate (11a), a side plate (11b), and a bottom plate (11c). and the positive pressure spaces (30h, 30j) are formed by being surrounded by the separators (11, 12) and the inner surface of the housing (2), and are not formed by including the bottom plate (11c). (Item 3) an air supply duct (110) that guides outdoor air into the room via an internal space (30); an exhaust air duct (120) that guides indoor air to the outdoors through an internal space (30); a heat exchange element (10) for exchanging heat between air flowing through an air supply passage (110) and air flowing through an air exhaust passage (120), Item 1. The heat exchange type ventilation device (1) according to item 1, wherein the heat exchange element (10) is provided as a pressing part that presses the separators (11, 12) from the upper surface (101) side. (Item 4) Intake ports (4, 6) provided on the side surface (106) for drawing air outside the housing (2) into the internal space (30); and an air outlet (5, 7) provided on the side surface (106) for blowing air from the internal space (30) to the outside of the housing (2), One side surface (106) of the housing (2) is The heat exchange type ventilation device (1) according to item 1, comprising all of the intake ports (4, 6) and all of the exhaust ports (5, 7). (Item 5) The air inlets (4, 6) include an outdoor air inlet (4) that introduces outdoor air into the interior space (30) and an indoor air inlet (6) that introduces indoor air into the interior space (30), The heat exchange type ventilation device (1) according to item 4, wherein the air outlets (5, 7) correspond to an indoor air intake port (5) that guides air from the internal space (30) indoors and an outdoor air exhaust port (7) that guides air from the internal space (30) outdoors. (Item 6) the separators (11, 12) have locking portions (20) on the positive pressure space (30h, 30j) side of the separators (11, 12); Item 1. The heat exchange type ventilation device (1) according to item 1, wherein the inner surface of the housing (2) is provided with a locked portion (21) that locks the locking portion (20). (Item 7) The locking portion (20) is a protrusion provided on the separator (11, 12), 7. The heat exchange type ventilation device (1) according to item 6, wherein the engaging portion (21) is a recess provided on the inner surface of the housing (2). [Industrial Applicability]

[0083] The heat exchange type ventilation device according to the present invention can be used in an intake and exhaust type ventilation device. [Explanation of symbols]

[0084] 1. Heat exchange ventilation system 2. Case 4 Outdoor air intake 5 Indoor air intake 6 Indoor air intake 7 Outdoor exhaust port 10 Heat exchange element 11 First separator 11a Top plate 11b Side plate 11c bottom plate 11d Circular section 11e Trapezoidal section 11m, 11p end 12 Second separator 13 Foam materials 20 Locking part 21 Locked part 30 Interior Space 30a Upper space 30b Lower space 30c Air intake headspace 30d exhaust headroom 30e Lower air intake space 30f Lower exhaust space 30g Air supply / blow space 30h positive air supply pressure space 30i Exhaust ventilation space 30j Exhaust positive pressure space 30k, 30l, 30m, 30n space 80 intake air flow 90 Exhaust flow 101 Top surface 102 Bottom surface 103, 104, 105, 106 Side 110 Air supply duct 120 Exhaust air duct

Claims

1. a housing having an internal space surrounded by a top surface, a bottom surface, and a side surface; a separator having a top plate that divides the internal space into an upper space belonging to an upper portion and an air blowing space and a positive pressure space belonging to a lower portion; a blower provided in the air blowing space; The positive pressure space is located downstream of the air blowing space, The separator is a portion of the separator abuts against an abutment surface that is an inner surface of the housing located on the opposite side of the air blowing space from the positive pressure space; A heat exchange type ventilation device in which the end of the separator on the air blowing space side is inclined toward the upper surface side, thereby pressing the end on the positive pressure space side against the lower surface side.

2. a side plate that is independent of the side surface of the housing in the air blowing space; a bottom plate that is independent of the lower surface of the housing in the air blowing space; Equipped with The air blowing space is The top plate, the side plate, and the bottom plate are formed so as to be surrounded by the top plate, the side plate, and the bottom plate, The positive pressure space is The separator is formed by being surrounded by the inner surface of the housing, The heat exchange type ventilation device according to claim 1 , which is not formed to include the bottom plate.

3. an air supply duct that guides outdoor air into the room through the internal space; an exhaust air duct that guides indoor air to the outdoors through the internal space; a heat exchange element that exchanges heat between air flowing through the intake air passage and air flowing through the exhaust air passage, The heat exchange element is The heat exchange type ventilation device according to claim 1 , further comprising a pressing portion that presses the separator from the upper surface side.

4. an intake port provided on the side surface for drawing air outside the housing into the internal space; an air outlet provided on the side surface for blowing air from the internal space to the outside of the housing, The heat exchange type ventilation device according to claim 1 , comprising all of the air inlets and all of the air outlets.

5. The suction port has an outdoor air intake port that introduces outdoor air into the interior space; an indoor air intake port that guides indoor air into the interior space; The air outlet has an indoor air intake port that introduces air into the interior space; The heat exchange type ventilation device according to claim 4 , wherein the ventilation opening is an outdoor exhaust port that guides the air in the internal space to the outdoors.

6. The separator is a locking portion is provided on the positive pressure space side of the separator, The inner surface of the housing is The heat exchange type ventilation device according to claim 1 , further comprising a locked portion that locks the locking portion.

7. The locking portion is a convex portion provided on the separator, The locked portion is The heat exchange type ventilation device according to claim 6 , wherein the recess is provided on the inner surface of the housing.

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