JP7249485B2 - heat exchange ventilator - Google Patents

Description

The present invention relates to a heat exchange ventilator that exchanges heat between outside air and indoor air.

As a conventional heat exchange type ventilator, a structure in which a heat exchange element is mounted on a floor-mounted main body is known (see, for example, Patent Document 1).

A conventional heat exchange type ventilator will be described with reference to FIG.

A conventional heat exchange type ventilator is a so-called floor standing type that is installed on the floor surface of a room. have

When the air supply fan and the exhaust fan are operated, the outdoor air flows into the outdoor air inlet 121 and the indoor air flows into the indoor air inlet 122 . The outdoor air that has flowed into the casing 110 from the outdoor intake port 121 passes through the outdoor intake passage, the upper air supply passage, and the intermediate air supply passage, flows upward through the filter member 171 , and then reaches the second heat exchange element 162 . It passes through the first heat exchange element 161 in order. The room air that has flowed into the casing 110 from the room air intake port 122 passes through the room air intake passage, passes through the first heat exchange element 161 , and then passes through the second heat exchange element 162 .

In each of the heat exchange elements 161 and 162, heat and moisture are exchanged between the outdoor air flowing through the outside air flow path and the indoor air flowing through the inside air flow path.

In the conventional heat exchange type ventilator, the heat exchange operation is performed in this way.

Japanese Patent No. 4179360

In a conventional heat exchange type ventilator, it is difficult to airtight air passages around the heat exchange element, so there is a problem that the heat exchange efficiency tends to decrease due to air leakage.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to realize a heat exchange ventilator with improved heat exchange efficiency.

In order to achieve this object, a heat exchange ventilator according to one aspect of the present invention is a heat exchange ventilator comprising a main body case, an air supply fan, an exhaust fan, and a heat exchange element. The main body case includes an indoor air inlet for sucking indoor air, an air outlet for discharging the sucked indoor air to the outside, an outdoor air inlet for sucking outside air, and an air inlet for supplying the sucked outdoor air to the room. , wherein the air supply fan blows outdoor air from the outside air suction port to the air supply port, and the exhaust fan blows indoor air from the indoor air suction port to the exhaust port. a front panel attached to a side surface of the main body case; a first air passage partition member that partitions the air passage; Provided at a position where the air supply air path and the air exhaust air path intersect, the holding part is configured to move the first air path partition member toward the heat exchange element in a state where the front panel is attached to the main body case. The intended purpose is achieved by energizing the

According to the present invention, it is possible to obtain a heat exchange ventilator with improved heat exchange efficiency.

1 is a perspective view showing an overview of a heat exchange type ventilation system according to the present invention; Top cross-sectional view showing the internal air passage of the same heat exchange type ventilation system Perspective view showing a state in which the front panel of the same heat exchange type ventilation system is removed. Disassembled perspective view of the same heat exchange type ventilation system A perspective view showing the front panel of the same heat exchange type ventilator. Perspective view showing the opening of the front panel of the same heat exchange type ventilator Top cross-sectional view showing the internal configuration of the same heat exchange type ventilation system A cross-sectional top view showing a state in which the heat exchange type ventilator is provided with a second pressing portion. Configuration diagram showing conventional technology

A heat exchange ventilator according to an aspect of the present invention is a heat exchange ventilator comprising a main body case, an air supply fan, an exhaust fan, and a heat exchange element, wherein the main body case contains indoor air. an indoor air inlet for sucking the air, an air outlet for discharging the sucked indoor air to the outside, an outdoor air inlet for sucking outside air, and an air inlet for supplying the sucked outdoor air indoors, and the air supply fan An air supply air passage through which outdoor air is blown from the outdoor air intake to the air supply port, an exhaust air passage through which indoor air is blown from the indoor air intake to the air exhaust port by the exhaust fan, and the main body case. a front panel attached to a side surface of the air duct, a first air duct partitioning member for partitioning an air duct, and a pressing portion projecting from the front panel, wherein the heat exchange element is provided with the supply air duct and the exhaust air duct intersect with each other, and when the front panel is attached to the main body case, the holding portion biases the first air passage partition member toward the heat exchange element.

According to this configuration, when the front panel is attached to the main body case, the holding portion biases the first air passage partition member toward the heat exchange element. That is, the pressing portion presses the first air passage partition member against the heat exchange element. As a result, it is possible to improve the adhesion between the first air passage partitioning member and the heat exchange element, thereby suppressing air leakage from the periphery of the heat exchange element and improving the heat exchange efficiency. In addition, due to the configuration in which the holding portion protrudes from the front panel, it is possible to improve airtightness and heat exchange efficiency without providing a new member.

Further, the pressing portion may have an opening, and indoor air may pass through the opening from the indoor suction port to the exhaust port.

As a result, it is possible to increase the cross-sectional area of the air passage, so that it is possible to reduce the pressure loss.

In addition, the heat exchange element has a first side surface facing the front panel and a second side surface adjacent to the first side surface, and the first air passage partition member is the first side surface on the first side surface. The holding portion includes a support portion and an abutment surface, the support portion protruding from the front panel toward the heat exchange element, and the abutment surface: The opening extends from the heat exchange element side end of the support portion in a direction parallel to the first side surface, the opening is provided in the support support portion, and the contact surface contacts the first air passage partition member. It may be configured to be in contact with each other.

According to this configuration, the first air passage partition member abuts on the corner portion of the heat exchange element (the end portion on the second side surface of the first side surface). As a result, air leakage from the corners of the heat exchange element can be suppressed. Furthermore, by urging the first air passage partitioning member with the surface, it is possible to further improve the adhesion between the first air passage partitioning member and the heat exchange element. As a result, there is an effect that the air leakage can be suppressed and the heat exchange efficiency can be improved.

Further, a second air passage partition member for partitioning an air passage is provided, and the heat exchange element has a first side surface facing the front panel, a second side surface adjacent to the first side surface, and a second side surface facing the second side surface. and a third side surface, wherein the pressing portion includes a first pressing portion and a second pressing portion, the first pressing portion including a first support portion, a first contact surface, and the second pressing portion includes a second support portion and a second contact surface, and the first support portion and the second support portion extend from the front panel toward the heat exchange element. The first contact surface extends in a direction parallel to the first side surface from the heat exchange element side end of the first support column portion, and the second contact surface extends from the second support column portion. Extending in a direction parallel to the first side surface from the heat exchange element side end portion, the opening is provided in the first support section, and the first air passage partition member is provided on the second side surface of the first side surface. the second air passage partitioning member abuts a third side end of the first side surface; the first contact surface abuts the first air passage partitioning member; The second contact surface may be configured to contact the second air passage partition member.

According to this configuration, not only the first air passage partitioning member but also the second air passage partitioning member are biased by the second pressing portion, thereby improving the adhesion between the heat exchange element and the air passage partitioning member. This has the effect of further suppressing air leakage and improving the heat exchange efficiency.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment 1)
A configuration of a heat exchange ventilator according to the present invention will be described with reference to FIGS. 1 to 4. FIG.

As shown in FIG. 1, the heat exchange ventilator has a box-shaped main body case 1 .

Inside the body case 1, an exhaust fan 2, an air supply fan 3, and a heat exchange element 10 are provided. At this time, the heat exchange element 10 is provided below the exhaust fan 2 and the air supply fan 3, for example.

An external air intake port 5 , an air supply port 6 , an indoor air intake port 7 , and an exhaust port 4 are provided on, for example, the top surface of the main body case 1 .

The external air intake port 5, the air supply port 6, the indoor air intake port 7, and the exhaust port 4 are shaped so that ducts (not shown) can be connected. A duct connected to the outside air intake port 5 and the exhaust port 4 is routed to the outer wall surface of the building to communicate with the outdoor air outside the building. A duct connected to the air supply port 6 and the indoor air inlet 7 communicates with the ceiling surface or the wall surface of the living room to communicate with the indoor air.

The supply air passage 8 is an air passage for sucking fresh outdoor air (supply air) from the outside air suction port 5 and supplying it indoors from the air supply port 6 through the heat exchange element 10 .

The exhaust air passage 9 is an air passage for sucking polluted indoor air (exhaust air) from the indoor air inlet 7 and exhausting it to the outside from the air outlet 4 through the heat exchange element 10 .

The heat exchange element 10 has a heat recovery function of supplying the heat quantity of the exhausted air to the supplied air or supplying the heat quantity of the supplied air to the heat quantity of the exhausted air. there is The heat exchange element 10 is arranged at a position where the supply air passage 8 and the exhaust air passage 9 intersect.

The supply air passage 8 and the exhaust air passage 9 are formed by a first air passage partitioning member 30 and a second air passage partitioning member 31 provided around the heat exchange element 10, the main body case 1, and the front panel 20. As shown in FIG. That is, the first air passage partitioning member 30 and the second air passage partitioning member 31 serve to partition the air passage.

As shown in FIG. 2, the heat exchange element 10 has a first side surface 11, a second side surface 12, a third side surface 13, and a fourth side surface .

The first side face 11 and the fourth side face 14 face each other, and the second side face 12 and the third side face 13 face each other. Also, the first side surface 11 faces the front panel 20 . The first side 11 is adjacent to the second side 12 and the third side 13 .

The first side surface 11 has a second side edge 11a and a third side edge 11b. In the first side surface 11, for example, the left end portion when viewed from the front panel side is referred to as a second side end portion 11a, and the right end portion is referred to as a third side end portion 11b. At this time, the left side of the first side 11 is the second side 12 and the right side of the first side is the third side 13 .

As shown in FIGS. 3 and 4, the heat exchange ventilator has a first air passage partitioning member 30 and a second air passage partitioning member 31 .

The first air passage partition member 30 has, for example, a columnar shape and a height corresponding to the height of the heat exchange element 10 .

The first air passage partition member 30 partitions (closes the space) between the first side surface 11 of the heat exchange element 10 and the front panel 20 and between the second side surface 12 of the heat exchange element 10 and the main body case 1. ) is provided. That is, the first air passage partition member 30 contacts the first side surface 11 and the second side surface 12 . In addition, the first air passage partition member 30 may be configured to abut on the second side end portion 11a. Air leakage between the exhaust air passage 9 and the air supply air passage 8 from the periphery of the heat exchange element 10 is suppressed by being in close contact with the second side end portion 11a.

Further, the first air passage partition member 30 may have a portion having a substantially T-shaped cross-section when viewed from above so that the corners of the heat exchange element 10 can more easily come into contact with each other.

The second air passage partition member 31 has, for example, a columnar shape and a height corresponding to the height of the heat exchange element 10 .

The second air passage partition member 31 partitions (closes the space) between the first side surface 11 of the heat exchange element 10 and the front panel 20 and between the third side surface 13 of the heat exchange element 10 and the main body case 1. ) is provided. That is, the second air passage partition member 31 contacts the first side surface 11 and the third side surface 13 . In addition, the second air passage partition member 31 may be configured to abut against the third side end portion 11b. Air leakage between the exhaust air passage 9 and the air supply air passage 8 from the periphery of the heat exchange element 10 is suppressed by being in close contact with the third side end portion 11b.

From the viewpoint of heat insulation, the first air passage partitioning member 30 and the second air passage partitioning member 31 are preferably made of plastic foam such as polystyrene foam.

From the standpoint of maintainability of the heat exchange element 10, it is preferable that the first air passage partitioning member 30, the second air passage partitioning member 31, and the front panel 20 are detachable from the main body case 1, respectively.

The heat exchange ventilator has a front panel 20 . As shown in FIGS. 3 and 4 , the front panel 20 constitutes one side surface of the main body case 1 and is detachable from the main body case 1 . The front panel 20 also has a maintenance opening 25, which is an opening for maintenance, for example. Furthermore, the front panel 20 has a pressing portion 21 . The details of the configuration of the pressing portion 21 will be described later.

Next, the pressing portion, which is a feature of the present invention, will be described with reference to FIGS.

As shown in FIG. 5 , the front panel 20 is provided with a pressing portion 21 facing the first air passage partition member 30 . In other words, the pressing portion 21 is provided so as to protrude from the front panel 20 toward the heat exchange element 10 .

The pressing portion 21 is provided so as to be in contact with the first air passage partition member 30 . When the front panel 20 is attached to the main body case 1 , the pressing portion 21 urges the first air passage partition member 30 toward the heat exchange element 10 . As a result, the adhesion between the first air passage partition member 30 and the second side end portion 11a of the heat exchange element 10 is improved, and air leakage between the exhaust air passage 9 and the air supply air passage 8 is suppressed.

Here, it is preferable that the front panel 20 and the pressing portion 21 are made of sheet metal from the viewpoint of fixing strength, but they may be made of resin or the like.

Moreover, air leakage can be further suppressed by providing the pressing portion 21 on the extension of the second side surface 12 of the heat exchange element 10 . According to this configuration, when the front panel 20 is attached to the main body case 1, the pressing portion 21 biases the second side end portion 11a. As a result, the pressing portion 21 biases the first air passage partitioning member 30 that abuts on the periphery of the corners of the heat exchange element 10 where air leakage is likely to occur, so air leakage can be further suppressed.

Further, by interposing a seal member (not shown) between the first air passage partition member and the heat exchange element 10, air leakage can be further suppressed. At this time, the pressing portion 21 biases the first air passage partitioning member 30 so that the first air passage partitioning member 30 and the seal member are brought into close contact, and the seal member and the heat exchange element 10 are brought into close contact. As a result, air leakage from around the heat exchange element 10 can be further suppressed.

Further, as shown in FIG. 5, the pressing portion 21 may be configured to have a support portion 23 and an abutment surface 24 .

The strut portion 23 protrudes from the front panel 20 toward the heat exchange element 10 . That is, it is provided so as to protrude toward the inside of the main body case 1 when the front panel 20 is attached to the main body case 1 . The contact surface 24 extends in a direction parallel to the first side surface 11 from the heat exchange element side end of the post portion 23 .

In this way, it is preferable from the standpoint of fixing strength that the support portion 23 is provided perpendicular to the first side surface of the heat exchange element 10 and the contact surface 24 is provided parallel thereto. From the viewpoint of fixing strength, it is preferable that the area of the contact surface 24 is large within a range that does not impede ventilation of the first side surface 11 of the heat exchange element 10 . That is, it is preferably 20% or less of the area of the first side surface 11 .

Also, as shown in FIGS. 5 and 6, an opening 22 may be provided in the pressing portion. At this time, the indoor air blown from the indoor air inlet 7 to the air outlet 4 passes through the opening 22 . The opening 22 is provided at an arbitrary position on the holding portion 21 . In this embodiment, the opening 22 is provided above the strut portion 23 . From the viewpoint of pressure loss reduction, it is preferable to increase the area of the opening 22 within a range that does not impair the strength of the pressing portion 21 . That is, it is preferably in the range of 10% to 70% of the area of the pressing portion 21 .

Next, the action of the pressing portion will be described with reference to FIG.

When the front panel 20 is attached to the main body case 1, the pressing portion 21 (in particular, the contact surface 24) attaches the first air passage partition member 30 toward the heat exchange element 10 (in the direction indicated by the dashed arrow in FIG. 7). force. In other words, the pressing portion 21 (in particular, the contact surface 24 ) presses the first air passage partition member 30 against the heat exchange element 10 . As a result, the airtightness between the heat exchange element 10 and the first air passage partition member 30 is improved, and air leakage is suppressed. As a result, the heat exchange efficiency of the heat exchange type ventilator is improved.

Moreover, the pressing portion 21 may have a first pressing portion 26 and a second pressing portion 27 . That is, as shown in FIG. 8, the front panel 20 may be provided with a first pressing portion 26 and a second pressing portion 27 .

The first pressing portion 26 and the second pressing portion 27 have the same configuration as the pressing portion 21 . Specifically, the first pressing portion 26 has a first support portion 23a and a first contact surface 24a. Also, the second pressing portion 27 has a second support portion 23b and a second contact surface 24b.

The first holding portion 26 is provided so as to be in contact with the first air passage partition member 30 . When the front panel 20 is attached to the main body case 1 , the first contact surface 24 a urges the first air passage partition member 30 toward the heat exchange element 10 .

The second pressing portion 27 is provided so as to be in contact with the second air passage partition member 31 . When the front panel 20 is attached to the body case 1 , the second contact surface 24 b urges the second air passage partition member 31 toward the heat exchange element 10 .

By providing the second pressing portion 27 in addition to the first pressing portion 26, the second air passage partitioning member 31 is also urged, and the gap between the second air passage partitioning member 31 and the heat exchange element 10 is increased. Improves airtightness. As a result, the heat exchange efficiency of the heat exchange ventilator is further improved.

Here, the first support section 23a and the second support section 23b are preferably provided perpendicular to the first side surface 11 of the heat exchange element 10, respectively.

Also, the first contact surface 24a and the second contact surface 24b are preferably provided in parallel with the first side surface 11 of the heat exchange element 10, respectively.

It should be noted that the shape and the like of the pressing portion are not limited to those shown in the drawings, and can be set as appropriate. Moreover, although the second pressing portion 27 has the same configuration as the pressing portion 21 in the present embodiment, the second pressing portion 27 does not have to have an opening.

Although the heat exchange ventilator according to the present invention has been described above based on the embodiments, the present invention is not limited to the embodiments. As long as it does not deviate from the spirit of the present invention, the present embodiment includes various modifications that a person skilled in the art can think of, and the form constructed by combining the components of different embodiments is also included in the scope of the present invention. .

INDUSTRIAL APPLICABILITY The heat exchange type ventilator according to the present invention is useful as a duct type ventilator, a duct type air conditioner, etc. for the purpose of exchanging heat between outside air and indoor air.

1 Body Case 2 Exhaust Fan 3 Air Supply Fan 4 Air Exhaust Port 5 Outside Air Suction Port 6 Air Supply Port 7 Indoor Air Suction Port 8 Air Supply Air Path 9 Air Exhaust Air Path 10 Heat Exchange Element 11 First Side 11a Second Side End 11b 3 side end portion 12 second side surface 13 third side surface 14 fourth side surface 20 front panel 21 pressing portion 22 opening 23 support portion 23a first support portion 23b second support portion 24 contact surface 24a first contact surface 24b 2 contact surface 25 maintenance opening 26 first holding portion 27 second holding portion 30 first air passage partitioning member 31 second air passage partitioning member

Claims (3)

A heat exchange ventilator comprising a main body case, an air supply fan, an exhaust fan, and a heat exchange element,
The main body case has an indoor air inlet for sucking indoor air, an air outlet for discharging the sucked indoor air to the outside, an outdoor air inlet for sucking outside air, and an air inlet for supplying the sucked outdoor air into the room. death,
an air supply air passage through which outdoor air is blown from the outside air suction port to the air supply port by the air supply fan;
an exhaust air passage through which indoor air is blown from the indoor air inlet to the air outlet by the exhaust fan;
a front panel attached to the side surface of the main body case;
a first air passage partitioning member that partitions the supply air passage and the exhaust air passage ;
and a first pressing portion protruding from the front panel,
The heat exchange element is provided at a position where the supply air passage and the exhaust air passage intersect,
In a state in which the front panel is attached to the main body case, the first holding portion is arranged in the exhaust air passage and biases the first air passage partition member toward the heat exchange element,
The first holding portion has an opening,
A heat exchange type ventilator , wherein indoor air passes through the opening from the indoor intake port to the exhaust port . the heat exchange element has a first side facing the front panel and a second side adjacent to the first side;
the first air passage partition member abuts a second side end portion of the first side surface;
The first pressing portion includes a first support portion and a first contact surface,
the first strut portion protrudes from the front panel toward the heat exchange element;
The first contact surface extends in a direction parallel to the first side surface from the heat exchange element side end portion of the first support column portion,
The opening is provided in the first strut portion,
2. The heat exchange ventilator according to claim 1 , wherein the first contact surface contacts the first air passage partition member. comprising a second air passage partitioning member that partitions the air supply air passage and the exhaust air passage;
The heat exchange element has a first side facing the front panel, a second side adjacent to the first side, and a third side facing the second side,
a second pressing portion protruding from the front panel,
The first pressing portion includes a first support portion and a first contact surface,
The second holding portion includes a second support portion and a second contact surface,
the first strut portion and the second strut portion protrude from the front panel toward the heat exchange element;
The first contact surface extends in a direction parallel to the first side surface from the heat exchange element side end portion of the first support column portion,
The second contact surface extends from the heat exchange element side end of the second support column in a direction parallel to the first side surface,
The opening is provided in the first strut portion,
the first air passage partition member abuts a second side end portion of the first side surface;
the second air passage partitioning member is in contact with a third side edge of the first side;
The first contact surface contacts the first air passage partition member,
The second contact surface contacts the second air passage partition member,
2. The heat exchange type ventilator according to claim 1, wherein the second pressing portion urges the second air passage partition member toward the heat exchange element.

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