JPH08100938A - Heat exchanging ventilating device - Google Patents

Abstract

PURPOSE: To obtain a heat a heat exchanging ventilating device, capable of preventing the faulty mounting of a heat exchanging element with an inexpensive structure, by providing a precluding means, precluding the reception of the heat exchanging element into a casing under the condition of being deviated from the normal posture thereof. CONSTITUTION: When filter units 33, 33 are introduced into an element receiving chamber C1 with a posture, comming to the opposite side of a partitioning plate 14, for example, under the receiving process of the heat exchanging element 30, an abutting unit 412B, provided so as to be extended from the receiving unit 412 of a positioning member 41, is abutted gainst the retaining piece of the filter unit 33 whereby the positioning of the heat exchanging element becomes impossible. Further, the position of the filter unit is deviated downward from the specified position whereby stopping device 60 can not be changed to the normal stopping position and the heat exchanging element 30 can not be retained while a lid 15 can not be retained. Accordingly, the mistake of inserting posture of the heat exchanging element 30 can be recognized whereby the mistake is corrected and the filters 33 can be mounted with a normal posture.

Description

Detailed Description of the Invention

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat exchange ventilator, and more particularly to a heat exchange ventilator in which a heat exchange element having a filter material is housed in a casing.

[0002]

2. Description of the Related Art Generally, as a heat exchange ventilation device of this type,
It is widely known that a box-shaped casing is provided and a heat exchange element, an air supply blower, and an exhaust air blower are housed in the casing (for example, Japanese Utility Model Publication No. 61-1).
0109, etc.). An air supply path for supplying outdoor air to the room and an exhaust path for exhausting indoor air to the room are formed in the casing.

The heat exchange element is formed in a polygonal column shape by laminating a large number of unit members. Further, in this heat exchange element, an air supply side flow passage communicating with the air supply passage in the casing and an exhaust side flow passage communicating with the exhaust passage are respectively in a direction orthogonal to the stacking direction of the unit members. It is divided into Then, by operating each blower, the outdoor air is introduced into the casing, passed through one of the air flow passages of the heat exchange element, and then supplied indoors, and the indoor air is introduced into the casing. Then, after passing through the other air flow passage of the heat exchange element, it is discharged to the outside of the room. Then, when the indoor air and the outdoor air flow through the heat exchange element, heat exchange between the two air is performed. A filter material is detachably attached to the heat exchange element on the surface defining the opening of the air flow passage. The filter material is provided on the upstream side of the air flow passage when the heat exchange element is in the normal posture, and removes dust in the air that is about to pass through the air flow passage.

[0004]

In the above-mentioned structure, each filter material of the heat exchange element is arranged on the upstream side of the passage in the casing communicating with the air flow passage when the heat exchange element is attached. There is a need. This is because if the heat exchange element is mounted in the wrong mounting posture, dust in the air will stay inside the air flow passage of the heat exchange element.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a heat exchange ventilation device capable of preventing a mistake in mounting a heat exchange element.

[0006]

In order to solve the above-mentioned problems, the structure according to claim 1 of the present invention is formed in a substantially polygonal column shape by laminating a large number of unit members, and an outdoor air through which outdoor air flows. A heat exchange element for partitioning the air flow passage and an indoor air flow passage for circulating the indoor air in a direction orthogonal to the stacking direction of the unit members, and an element housing for detachably housing the heat exchange element therein. And an air supply path for supplying the outdoor air into the room through the outdoor air flow passage of the heat exchange element, and the indoor air of the heat exchange element. A casing that internally defines an exhaust path for exhausting indoor air to the outside via a flow passage, and a filter that is detachably attached to the heat exchange element. And a mounting member for detachably fixing the filter material and the filter material to the heat exchange element, the heat exchange element being in a proper posture with respect to each path of the casing, and provided on the upstream side of the air flow passage. In the heat exchange ventilation device having a filter part, the heat exchange ventilation is provided with a blocking means for blocking the heat exchange element from being accommodated in the casing in a state in which the heat exchange element is deviated from the normal posture. It is a device.

According to a second aspect of the present invention, in the heat exchange ventilator according to the first aspect, the blocking means is disposed in the element accommodating chamber and is displaced from the normal posture. It is composed of an abutting member that abuts against.

According to a third aspect of the present invention, in the heat exchange ventilator according to the second aspect, the heat exchange element and the element accommodating chamber are arranged such that the heat exchange element is deviated from a normal posture and a filter portion is provided. The size is set to regulate the introduction of the heat exchange element into the element accommodating chamber when it does not face the contact member.

According to a fourth aspect of the present invention, in the heat exchange ventilator according to the first aspect, the casing has a regular fixing position for fixing the heat exchange element in the element accommodating chamber and the heat exchange element. The blocking means is further provided which is displaceable to an open position that opens to the storage chamber, and the blocking means is provided in the element storage chamber and abuts against the heat exchange element deviated from a normal posture, The contact member regulates the accommodation of the heat exchange element to a position that regulates the displacement of the fixing member to the normal fixing position.

According to a fifth aspect of the present invention, in the heat exchange ventilator according to the first aspect, the casing further includes a lid capable of opening and closing between the opening and the element accommodating chamber, and the blocking means includes: The contact member is provided in the element storage chamber and contacts the heat exchange element deviated from the normal posture to restrict the accommodation of the heat exchange element to a position that restricts the lid from closing the opening.

[0011]

In the structure according to the first aspect, even if the worker tries to store the heat exchange element in the element storage chamber of the casing in an incorrect posture, the blocking means blocks this. Therefore, the heat exchange element is housed in the element housing chamber only in the proper posture.

Further, in the structure according to the second aspect, it is possible to regulate the mounting error without performing special processing on the heat exchange element. Further, in the configuration according to claim 3, in the case where the blocking means is arranged in the element accommodating chamber and is constituted by an abutting member that abuts on the filter portion of the heat exchange element that is deviated from the normal posture, It is possible to reliably prevent the heat exchange element from being mounted in an incorrect posture even when the exchange element is displaced from the normal posture and the filter portion is not opposed to the contact member.

Further, in the structure according to the fourth aspect of the present invention, the stop which is displaceable between the regular fixing position for fixing the heat exchange element in the element storage chamber and the open position for opening the heat exchange element with respect to the element storage chamber is provided. If the worker tries to mount the heat exchange element in a state in which the fixed member is provided in the casing in a state in which the fixed member is deviated from the normal posture, the blocking means comes into contact with the heat exchange element, and the fixed member stops the regular stop. It cannot be displaced to the fixed position.

Further, in the structure according to the fifth aspect, when the cover is provided in the casing so as to be able to open and close between the opening and the element accommodating chamber, the heat exchange element is operated in a state in which the heat exchange element is deviated from the normal posture. When a person tries to put it on, the blocking means abuts the heat exchange element and the lid does not close.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will now be described in detail with reference to the accompanying drawings. FIG. 1 is a perspective view showing a main part of a heat exchange ventilation device according to an embodiment of the present invention, FIG. 2 is a perspective view showing a schematic configuration of the heat exchange ventilation device of FIG. 1, and FIG. FIG. 4 is a schematic cross-sectional view showing a schematic configuration of the heat exchange ventilation device of FIG. 1, FIG. 4 is a cross sectional view showing a main part of the heat exchange ventilation device in the embodiment of FIG. 1, and FIG. 5 is an embodiment of FIG. 7 is a perspective view showing the outer appearance of the lid and the positioning member in FIG. 6, and FIG. 6 is a perspective view showing a main part of the heat exchange ventilation device in the embodiment of FIG. 1.

First, referring to FIGS. 2 to 4, the heat exchange ventilator according to the present embodiment is provided with a box-shaped casing 10 which is embedded in the ceiling. Blower 20 for circulating air, and blower 20
And a heat exchange element 30 for exchanging heat between the air blown by the air. The casing 10 is
The one side wall 12 is provided with an outdoor air introduction port OA for introducing the outdoor air into the inside and an exhaust port EA for discharging the indoor air to the outside. Further, an opening 10A for opening the interior to the room is defined in the lower portion of the casing 10, and a decorative panel 11 is attached to the opening 10A. This decorative panel 11 has an outdoor air introduction port OA.
Supply port SA for supplying the outdoor air introduced from
And an indoor air introduction port RA for introducing the indoor air into the inside and discharging the indoor air from the exhaust port EA. The casing 10 has an outdoor air introduction port O inside thereof.
An air supply path SP for supplying the outdoor air introduced from A to the supply port SA and an exhaust path EP for exhausting the indoor air introduced from the indoor air introduction port RA from the exhaust port EA are provided inside. It is divided into In the present embodiment, both the outdoor air introduction port OA and the exhaust port EA are partitioned by the duct joint 13 externally attached to the same side wall 12.

Referring to FIG. 3, a partition plate 14 is fixed in the casing 10 for partitioning the paths SP and EP into the left and right sides in FIG. 3, and the right side in FIG. An element housing chamber C1 for housing the heat exchange element 30 is defined, and a fan housing chamber C2 for housing the blower 20 is defined on the left side. The partition plate 14 has a pair of vent holes 14A and 14B for communicating the storage chambers C1 and C2 with each other.
One of them defines an air supply path SP, and the other partitions an exhaust path EP.

At the lower end of the partition plate 14, a lid 15 facing the decorative panel 11 is pivotally supported.
By this, a part of the exhaust path EP is partitioned, and the heat exchange element 30 is configured to be openable to the opening 10A. Referring to FIG. 2, the blower 20
Is provided with a fan casing 21, and the fan casing 21 partitions each of the air supply passage SP and the exhaust passage EP of the casing 10. Further, the blower 20 includes a pair of impellers 22 mounted on the fan casing 21, and a mounting plate 23 for mounting the impeller 22 on the fan casing 21. The air flowing through is being pumped.

The fan casing 21 is a foamed resin molded body molded by a well-known bead molding method, and is provided with a pair of spiral chambers (not shown) provided for each impeller 22, 22. Air outlets 21C that blow out the pressurized air in the swirl chamber are formed respectively. In the present embodiment, the center of rotation of each impeller 22, 22 is vertically aligned when mounted on the heat exchange ventilation device (see FIG. 3). Although not specifically shown, a bell mouth is fitted into the fan casing 21, and air is introduced from the bell mouth into the spiral chamber. In order to connect the bell mouth for air supply and the outdoor air introduction port OA to each other, the fan casing 21 has a cutout 21.
D is formed, and a cutout 21E and a step (not shown) are formed in the fan casing 21 in order to connect the exhaust bellmouth and the indoor air introduction port RA.
Further, the air outlet 21C is formed on a side portion of the fan casing 21.

The impeller 22 (see FIG. 3) is a sirocco fan driven by a motor 24 fixed to a mounting plate 23, and both are arranged above the motor 24 at the time of mounting. In this embodiment, each impeller 2
In the casing 10, 2 are opposed to each other in the horizontal direction orthogonal to the stacking direction L, and are slightly on the exhaust side impeller 22.
Are arranged continuously along the stacking direction L in a state of being close to the heat exchange element 30. By adopting this layout, one side in the plane of the casing 10 does not become extremely long, and it is possible to achieve compactness.

The mounting plate 23 is used for the fan casing 2
The bottom surface of the fan casing 21 is fixed to the lower surface of the fan casing 21 with screws (not shown).
Next, referring to FIGS. 1 to 3, the heat exchange element 30 includes an element body 31 and an element body 31.
And a holding frame 32 for holding the.

The element body 31 is formed by stacking a large number of unit members made of a material such as paper so that the air supply side flow passage communicating with the air supply passage SP and the exhaust side flow passage communicating with the exhaust passage EP. And are divided so that the heat of the air passing through both flow passages is exchanged. In the present embodiment, the heat exchange element 30 is arranged such that the stacking direction L of the unit members is horizontal along the direction in which the impellers 22, 22 of the blower 20 are continuously arranged. Each flow passage is formed along the direction orthogonal to the stacking direction L. In this embodiment, the corresponding impellers 22 and 22 are arranged on the upstream sides of the air supply path SP and the exhaust path EP, and the flow passages of the heat exchange element 30 are located downstream of these impellers 22 and 22. Is set to the side. Therefore, each of the impellers 22 and 22 of the blower 20 is configured as a blow-out type in which the blowout flow is pressure-fed to the heat exchange element 30.

The holding frame 32 constitutes an outer shell of the heat exchange element 30 and holds the element body 31 by sandwiching the element body 31 with a pair of frame members formed substantially symmetrically with each other. is there.
Next, the heat exchange element 30 has a filter portion 33.
Is attached. Filter unit 33 in the present embodiment
Is a filter material 33A that traps dust of air that is about to pass through the air flow path of the element body 31 by being sandwiched by the holding frame 32, and a filter material 33A.
Is a concept including an attachment member for detachably attaching to the element body 31, and is, so to speak, a so-called “member related to a filter”. Further, the attachment member is integrally formed with the holding frame 32, and includes two pairs of locking pieces 33B (only one is shown in FIG. 1) extending from the holding frame 32 along the edge ridge line, and the locking piece 33B. The filter material 33A is removably locked for each pair.
Is formed on the element body 31A by a curved bar 33C. Then, with the curved portion of the curved bar 33C attached to one of the pair of locking pieces 33B,
Connect each free end (not shown) of the curved bar 33C to the other locking piece 3
By engaging and disengaging with 3B, the filter material 33A is configured to be attachable and detachable.

As shown in FIG. 3, the heat exchange element 30 is accommodated in the element accommodating chamber C1 of the casing 10 in a state of being inclined by 45 ° so that the filter portions 33, 33 are vertically opposed to each other. There is. Further, as described above, in the present embodiment, each of the impellers 22, 22 of the blower 20 is configured as a blow-out type in which the blowout flow is pressure-fed to the heat exchange element 30. The filters 33, 33 are provided for the respective vent holes 1 of the partition plate 14.
Facing 4A and 14B.

In order to mount the heat exchange element 30 in the casing 10, one inner wall of the casing 10 (the inner wall surface of the side wall 12 to which the duct joint 13 is attached).
Has a positioning member 41 that abuts on one end surface of the heat exchange element 30 to position it, and the other side wall of the heat exchange element 30 is elastically pressed against the positioning member 41. A biasing mechanism (not shown) is provided.

With reference to FIGS. 1, 3 and 4, the positioning member 41 has a substantially inverted diamond-shaped partition 41A that abuts against the end surface of the heat exchange element 30, and a horizontal bend from the bottom of the partition 41A. Then the casing 1
0, the bottom plate portion 41B that abuts on the inner side wall, the standing portion 41C that bends upward from the end portion of the bottom plate portion 41B, and the bottom plate portion 4 described above.
Partition plate 4 which is erected at approximately the central portion in the longitudinal direction of 1B.
1D and 1D are integrated. When the positioning member 41 is fixed to the casing 10, one piece of an L-shaped attachment fitting (not shown) is fixed to the inner wall of the casing 10, and the other piece is used to receive the lower surface of the bottom plate portion 41B of the positioning member 41 and fix with a screw. It is done by As a result, the positioning member 41 is integrally fixed inside the casing 10.
Although not specifically shown, a sponge as a sealing material is attached to the positioning member 41 in this embodiment. This sponge is made of a porous resin, which prevents dew condensation and heat insulation.

The inclined ridge 410 of the partition 41A has a receiving portion 41 for receiving the end surface of the heat exchange element 30.
1, 412 are formed. One receiving portion 411 is
It receives a ridge portion having a locking piece 33B formed on the holding frame 32 of the heat exchange element 30, and simply,
It is bent and extends at a right angle to the partition portion 41A. On the other hand, as shown in FIG. 6, the other receiving portion 412 extends to the receiving portion 412A that receives the ridge portion of the holding frame 32 where the locking piece 33B is not formed, and the receiving portion 412A. The holding frame 32 is formed in a substantially U-shaped cross-section that integrally includes a contact portion 412B as a contact member that enters the inside of the holding frame 32. Therefore, in the present embodiment, as shown in FIG. 6, when the heat exchange element 30 is inserted in the proper posture, both the receiving portion 411 (see FIG. 1) and the receiving portion 412 are held frame 32.
Are positioned as shown to allow the heat exchange element 30 to be housed in the element housing chamber C1. On the other hand, as shown in FIG. 1, when the heat exchange element 30 is inserted in the wrong posture, the other receiving portion 412
Since the contact portion 412B of the above contacts the locking piece 33B, the positioning of the heat exchange element 30 becomes uncertain. Therefore, the worker notices an error in the insertion posture of the heat exchange element 30, corrects the mistake, and mounts the heat exchange element 30 in the element accommodation chamber C1 in a proper posture.

As shown in FIG. 3, a stopper 60 as a stopper member is rotatably attached to the lower surface of the bottom plate portion 41B of the positioning member 41.
By receiving the lower portion of the heat exchange element 30, the heat exchange element 30 accommodated in the element accommodating chamber C1.
We are trying to prevent With reference to FIG. 5, the stopper 60
Is the bottom plate portion 41 of the positioning member 41 by the screw 61.
The sheet metal product integrally includes a rotating plate 62 that is rotatably supported on the lower surface of B and a handle 63 that hangs from the end surface of the rotating plate 62. Then, the operator holds the grip 63 and rotates the rotating plate 62 around the screw 61,
The heat exchange element 30 is configured to be displaceable between a regular fixed position (position shown in FIG. 5) where the heat exchange element 30 can be fixed and an open position where the heat exchange element 30 can be opened.

Further, the lid 15 is provided with a base plate portion 15A that abuts the lower ridge portion of the heat exchange element 30 to partition the inside of the casing 10. Both ends of the base plate portion 15A are erected upward. It is integrally provided with a pair of side wall portions 15B provided. Then, on one of the side wall portions 15B,
A seal plate portion 15C that seals the lower surface of the bottom plate portion 41B of the positioning member 41 is extended, and a seal plate portion 15D that seals the lower surface of the urging mechanism (not shown) is extended on the other side wall portion 15B. Has been done.

The sealing plate portion 15C for sealing the lower surface of the bottom plate portion 41B is formed along the shape of the bottom surface of the bottom plate portion 41B, and only when the stopper 60 is in the regular fixed position. An insertion hole 15E that allows insertion is provided. For this reason, an operator who performs maintenance of the heat exchange element 30 cannot close the lid 15 unless the stopper 60 is fixed at the regular fixing position.

Further, the lid 15 has the substrate portion 15A.
A hinge portion 15F is provided at a boundary portion between the side plate portion 15B and each side plate portion 15B, and the hinge portion 15F is pivotally supported by a resin pin (not shown) attached to the partition plate 14 (see FIG. 3). Thus, the element housing chamber C1 can be opened and closed in the opening 10A (see FIG. 3). In addition,
Although not specifically shown, each side plate portion 15B of the lid 15
Is fixed to the side portion of the casing 10 with screws that can be detached from the room.

In this embodiment, the shutter 50 for preventing the outdoor air from flowing back to the exhaust passage EP is housed in the casing 10 (see FIG. 1), and the casing 10 is mounted by the mounting member (not shown). It is attached to the top plate of. Next, the operation of this embodiment will be described. With the above configuration, when the blower 20 is operated, each motor 24 is operated, and the impeller 22 is rotated, the outdoor air is supplied from the outdoor air introduction port OA to the inside of the casing 10 by the impeller 22 for air supply. Is introduced into the heat exchange element 3 through the air passage SP in the casing 10.
It is supplied to the room from the supply port SA via the outdoor air flow passage of 0. At the same time, the indoor air is introduced into the casing 10 from the indoor air introduction port RA by the exhaust impeller 22, passes through the heat exchange element 30, and is then discharged to the outside from the exhaust port EA.

Referring to FIG. 3, in the heat exchange ventilator as described above, when the filter material 33A of the filter portion 33 attached to the heat exchange element 30 is maintained, first, the decorative panel 11 is removed from the room. The element accommodating chamber C1 may be opened to the room through the opening 10A by removing the lid 15 and further opening the lid 15. In this state, the fixing member 60 attached to the bottom plate portion 41B of the positioning member 41 is displaced from the regular fixing position to the open position, thereby releasing the fixing state of the heat exchange element 30, and thereby the heat exchange element 30. Can be removed from the element storage chamber C1.

Next, the removed heat exchange element 30.
In the case where the heat exchanger element 30 is mounted, the heat exchange element 30 is housed in the element housing chamber C1 and fixed by the stopper 60, and then the lid 15 is closed and the decorative panel 11 is mounted in the reverse order of the above. . In the process of accommodating the heat exchange element 30, the operator may accidentally mistakenly operate the filter portions 33, 3
When 3 is introduced into the element accommodating chamber C1 with the posture opposite to the partition plate 14, as shown in FIG. 7 and FIG. 8, the contact portion 412 of the positioning member 41 is extended. The contact portion 412B is the locking piece 33B of the filter portion 33.
The contact of the heat exchange element 30 becomes unstable. Further, in this state, since the heat exchange element 30 is displaced downward from the regular position, the stopper 60 cannot be displaced to the regular fixing position, and the heat exchange element 30 can be fixed. Can not be. Further, as shown in FIG. 7 and FIG.
If 0 cannot be displaced to the regular stop position, the stopper 60
The interference with the lid 15 also makes it impossible to stop the lid 15. Therefore, the worker notices an error in the insertion posture of the heat exchange element 30, corrects it, and mounts the heat exchange element 30 in the element accommodating chamber C1 in a proper posture.

As described above, in the structure of this embodiment, the heat exchange element 30 is accommodated in the element accommodating chamber C1 only in the proper posture, so that the mounting posture can be securely prevented from being incorrect. As a result, a remarkable effect that a defect due to a mounting mistake can be surely prevented is exerted. Particularly, in the configuration of this embodiment, the element storage chamber C1
When the heat exchange element 30 is introduced in the wrong posture, the abutment portion 412B as the blocking means comes into contact with the heat exchange element 30, so that the stopper 60 cannot be displaced to the regular fixed position or the lid is closed. Since 15 does not close, the operator can recognize an error in the posture and can prevent the heat exchange element 30 from being attached to the element accommodating chamber C1 in the wrong posture. There is. Moreover, the existing stopper 60 or lid 1
Since the operator can recognize the mounting mistake of the heat exchange element 30 by using 5, there is also an advantage that the number of parts does not increase excessively and the insertion mistake can be prevented with a low-cost configuration.

In the case of adopting the above-mentioned structure, the element housing chamber C with the filter portions 33, 33 facing left and right.
Even if the contact portion 412B is attached to the filter 1, the attachment error can be restricted as long as the contact portion 412B faces the filter portion 33. However, when the filter portions 33, 33 face each other on the left and right sides on the opposite side of the contact portion 412B, it is impossible to prevent the mounting error even if the contact portion 412B is simply provided. Therefore, in the present embodiment, as shown in FIG. 9, the length of the diagonal line D1 along the facing direction of the filter portions 33, 33 is set longer than the length of the diagonal line D2 orthogonal thereto, and the opening width of the opening 10A is set. L1
It corresponds to the shorter diagonal line D2.

As described above, in this embodiment, in the heat exchange element 30 and the element accommodating chamber C1, the heat exchange element 30 is displaced from the normal posture, and the filter portion 33 faces the contact portion 412B. If not, the element housing chamber C1 of the heat exchange element 30
To regulate the introduction into the (diagonal lines D1, D2, opening width L
Since it is set to 1), as shown in FIG. 9, the contact portion 412B is disposed in the element housing chamber C1 and contacts the filter portion 33 of the heat exchange element 30 which is displaced from the normal posture. In the case where the heat exchange element 30 is configured by the contact portion 412B, the heat exchange element 30 is displaced from the normal posture, and the filter portion 33 is contacted by the contact portion 412B.
Heat exchange element 30 even when not facing the
Can be reliably prevented from being mounted in the wrong posture. Therefore, the contact portion 41 is attached to the element storage chamber C1C1.
Since the blocking means can be configured only by providing 2B, there is an advantage that the desired effect can be obtained with an inexpensive structure.

The above-mentioned embodiments are merely examples of preferred embodiments of the present invention, and the present invention is not limited to the above-mentioned embodiments. For example, as the blocking means, asymmetrical unevenness may be formed in the holding frame 32 of the heat exchange element 30 and the opening 10A so that the heat exchange element 30 can be introduced into the element housing chamber C1 only in the normal posture. . However, when the contact portion 412B is provided in the element accommodating chamber C1 as in the present embodiment, not only does the sealability and the like be adversely affected, but also it is not necessary to unnecessarily increase the number of parts. There is an advantage.

Further, in the above-described embodiment, since the fan casing 21 of the air supply / exhaust type is adopted in the blower 20, the handling is easy. A fan casing formed of separate members may be used for the blower 20. Also,
In the embodiment described above, the contact portion 412B is the filter portion 3
The contacting part 33B abuts on the engaging piece 33B of
12B may contact the filter material 33A itself or may contact the curved bar 33C.

It is needless to say that various design changes can be made without changing the gist of the present invention, such as applying the present invention to a ceiling-hanging type heat exchange ventilation device in which the casing is exposed in the room. Nor.

[0041]

As described above, according to the first aspect of the present invention.
In the configuration described, the heat exchange element is accommodated in the element accommodating chamber only in the proper posture, so it is possible to reliably prevent an error in the mounting posture, and thus to prevent a defect due to a mounting mistake. It has a remarkable effect that it can be done.

Further, in the structure according to the second aspect, the blocking means can be constituted only by providing the abutting member in the element accommodating chamber, so that the desired effect can be obtained with an inexpensive structure. There is. Furthermore, in the structure according to the third aspect, the heat exchange element is mounted in an incorrect posture even when the heat exchange element is displaced from the regular posture and the filter portion is not opposed to the contact member. There is an advantage that it can be surely prevented.

Further, in the configuration according to claim 4 or 5,
If the heat exchange element is introduced into the element housing chamber in the wrong posture, the blocking member comes into contact with the heat exchange element, so that the fixing member cannot be displaced to the regular fixing position or the lid cannot be closed. Therefore, there is an advantage that the worker can recognize an error in the posture and can prevent the heat exchange element from being attached to the element accommodating chamber in the wrong posture. Moreover,
Since the operator can recognize the mounting mistake of the heat exchange element by using the existing fixing member or the lid, there is also an advantage that the number of parts does not increase excessively and the insertion mistake can be prevented by the inexpensive structure. .

[Brief description of drawings]

FIG. 1 is a perspective view showing a main part of a heat exchange ventilation device according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a schematic configuration of the heat exchange ventilation device of FIG.

FIG. 3 is a schematic cross-sectional view showing a schematic configuration of the heat exchange ventilation device of FIG.

FIG. 4 is a cross-sectional view showing the main parts of the heat exchange ventilation device in the embodiment of FIG.

5 is a perspective view showing appearances of a lid and a positioning member in the embodiment of FIG. 1. FIG.

FIG. 6 is a perspective view showing a main part of the heat exchange ventilation device in the embodiment of FIG.

7 is a schematic sectional view showing the operation of the embodiment of FIG.

8 is a cross-sectional view showing a main part corresponding to FIG.

9 is a schematic sectional view showing a further operation of the embodiment of FIG.

[Explanation of symbols]

 10 Casing 10A Opening 11 Decorative Panel 30 Heat Exchange Element 33 Filter Part 33A Filter Material 33B Locking Piece 33C Curved Rod 41 Positioning Member 412B Abutting Part (Blocking Means) C1 Element Storage Chamber D1 Diagonal Line D2 Diagonal Line L Stacking Direction L1 Opening Width

Claims (5)

[Claims] Claims: 1. A plurality of unit members are laminated to form a substantially polygonal column shape, and an outdoor air flow passage through which outdoor air flows and an indoor air flow passage through which indoor air flows are formed in a stacking direction of the unit members. The heat exchange element (30) that partitions in the direction orthogonal to L), the element storage chamber (C1) and the element storage chamber (C1) that detachably accommodate the heat exchange element (30) inside are placed inside the room. An opening (10A) to be opened is defined, and an air supply path (SP) for supplying outdoor air into the room through the outdoor air flow passage of the heat exchange element (30), and the heat exchange element (30 ), A casing (10) that internally defines an exhaust path (EP) for discharging the indoor air to the outside via the indoor air flow passage, and a filter that is detachably attached to the heat exchange element (30). Heat exchange material (33A) and filter material (33A). Mounting member (33B, 3B)
3C) and a heat exchange element (30) that is in a normal posture with respect to each path (SP, EP) of the casing (10), the filter section (33) provided upstream of the air flow passage. In a heat exchange ventilator comprising: a blocking means for blocking the heat exchange element (30) from being accommodated in the casing (10) in a state displaced from a normal posture.
(412B) is provided, the heat exchange ventilator. 2. The heat exchange ventilator according to claim 1, wherein the blocking means is arranged in the element housing chamber (C1),
The heat exchange element (30) is composed of an abutting member (412B) that abuts on the filter section (33) of the heat exchanging element (30). 3. The heat exchange ventilator according to claim 2, wherein the heat exchange element (30) and the element storage chamber (C1).
Is the element accommodating chamber (C1) of the heat exchange element (30) when the heat exchange element (30) is displaced from the normal posture and the filter portion (33) does not face the contact member (412B). ) Is set to a size that restricts its introduction. 4. The heat exchange ventilator according to claim 1, wherein the casing (10) has a regular fixing position for fixing the heat exchange element (30) in the element housing chamber (C1), and the heat exchange element. (30) further includes a fixing member (60) displaceable to the open position for opening to the element storage chamber (C1), the blocking means is provided in the element storage chamber (C1), the normal posture Contacting the heat exchange element (30) deviated from the heat exchange element (30), the heat exchange element (30) is accommodated in the fixing member.
The contact member (412B) restricts the displacement of the (60) to the regular stationary position. 5. The heat exchange ventilator according to claim 1, wherein the casing (10) has an opening (10A) and an element storage chamber.
(C1) is further provided with a lid (15) that can be opened / closed, and the blocking means is provided in the element housing chamber (C1) and abuts against the heat exchange element (30) that is deviated from the normal posture. The lid opens the housing of the heat exchange element (30).
(10A) abutment member (4
12B).