JPH07260228A - Heat exchanging ventilator - Google Patents

Abstract

PURPOSE:To short-circuit routes from fan rotors to corresponding vent ports by horizontally opposing one fan rotor and the other rotor to an opposite side motor in a casing in an attitude in which the one and the other rotors are opposed to the ports above or below a ridge and reversely opposed upside down. CONSTITUTION:One fan rotor 22 and the other fan rotor 22 are opposed to corresponding vent ports 16A, 16B above or below a ridge 15B, and motors 21 are horizontally opposed to corresponding duct joints OA, EA. Accordingly, the rotors 22 are horizontally approached to the ports 16A, 16B, and routes from out of casing 11 to the corresponding ports 16A, 16B via the rotors 22 can be short-circuited. Thus, an excess bent space is removed to reduce a pressure loss, whereas the two motors are employed to perform large air supply capacity.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a heat exchange ventilator,
More specifically, the present invention relates to a heat exchange ventilator of the type that ventilates indoor air and outdoor air through a heat exchange element.

[0002]

2. Description of the Related Art Generally, a ventilation device of this type includes a box-shaped casing arranged in a ceiling and a heat exchange element housed in the casing. The heat exchange element is configured by stacking a large number of partition plates at intervals to form first and second vent holes that allow two kinds of air to flow in a direction intersecting the stacking direction. And
This type of heat exchange element is arranged in the casing such that the stacking direction of the partition plates is along the horizontal direction.

An air supply blower and a blower blower are arranged in the casing in order to allow air to flow through both ventilation holes of the heat exchange element. For example, Jitsuko Sho 61-
In Japanese Patent No. 10109, a so-called double-axis blower fan 100 in which fan rotors 103 and 104 are attached to both ends of a rotary shaft 102 of a motor 101 is used as an air blower and an air blower.

As shown in FIG. 7, the biaxial blower fan 100 of the above publication is arranged such that the rotation shaft 102 of the motor 101 is orthogonal to the stacking direction of the heat exchange elements 105 (the front and back direction of the paper surface). There is. The fan rotors 103, 104 of the biaxial blower fan 100 are located above or below the ridge line 105A of the heat exchange element 105 along the stacking direction, and the corresponding vent holes 106A, 106 are provided.
Facing B.

Alternatively, the structure disclosed in Japanese Patent Laid-Open No. 4-54857 is also known. FIG. 3B and FIG.
As shown in (B), a blower unit 110 having a fan rotor 110A and a motor 110B for driving the fan rotor 110A is paired to configure an air supply blower and a blower blower, and each of the blower units 110, 110 is connected to the heat generator. Exchange element 10
The partition plates of No. 5 are continuously provided in the stacking direction. This Japanese Patent Laid-Open No. 4-
The configuration of Japanese Patent No. 54857 is proposed with the intention of inserting and removing each blower unit 110 from the casing 107 in the direction along the stacking direction of the heat exchange elements 105. Then, in order to achieve the purpose, the blower units 110 are arranged symmetrically as shown in FIG. 3 (B).

[0006]

In the above-mentioned ceiling-embedded ventilator, what is required is to develop a compact heat exchange ventilator capable of exhibiting a high air blowing capacity. However, in the above-mentioned prior art example, it was not possible to sufficiently improve both the blowing capacity and the downsizing.

That is, in the configuration of FIG. 7, the fan rotor 10
3, 104 are the respective vent holes 106 of the heat exchange element 105.
Since it faces A and 106B, the fan rotor 103,
Although the 104 and the corresponding vent holes 106A and 106B can be horizontally short-circuited to each other, since the double-shaft blower fan 100 is employed, the motor 101
In addition to the vertical dimension of itself, it is necessary to secure the installation dimensions of the fan rotors 103 and 104 arranged above and below the motor 101 in the casing 107, which causes a problem that the entire apparatus becomes large. Further, since one fan 101 drives two fan rotors 103 and 104, a large output cannot be obtained. In addition, when the device is arranged in a place where the mounting space above the ceiling is narrow in the vertical direction, the motor 101 cannot be upsized, and from this point also there is a problem that it is not possible to exert a high air blowing capacity. .

On the other hand, the configurations of FIGS. 3B and 4B are as follows.
It is possible to employ two motors 110B and 110B, and moreover, since the vertical height can be set shorter than that of the double-axis blower fan 100, it is easy to set a large air volume. However, since the blower units 110, 110 are merely symmetrically arranged, the vent holes 106 of the heat exchange element 105 are not provided.
I couldn't face A or 106B. Therefore, as shown in FIG. 4B, the fan rotor 110A,
110A is a ridge line 10 that divides the vent holes 106A and 106B into upper and lower parts along the stacking direction of the heat exchange elements 105.
As a result of being horizontally opposed to 5A, it is necessary to provide an extra space S in the facing direction and further provide a curved path S10 orthogonal to the space S. Therefore, in the configuration of Japanese Patent Application Laid-Open No. 4-54857, the pressure loss cannot be sufficiently eliminated, so that the two motors 110B and 110B are
Despite adopting, it was still unable to exert its great blowing ability.

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 ventilator capable of achieving both improvement of air blowing capacity and downsizing.

[0010]

In order to solve the above-mentioned problems, the structure according to claim 1 of the present invention has a large number of partition plates which are stacked in one direction with a gap therebetween, and a stacking direction of the partition plates. A first ventilation port that allows air to flow in one intersecting direction, a ridge line that partitions a part of the first ventilation port along the stacking direction, and a part of the ridge line that defines the ridge line, and the stacking direction. A polygonal prismatic heat exchange element having a second ventilation port that allows air to flow in the other direction intersecting with
In a heat exchange ventilation device including a casing that accommodates the heat exchange element therein such that the ridge line extends horizontally, and a pair of blower units that are connected along the ridge line, each blower unit is an outer member. And a fan rotor attached to the outer shell member and a fan rotor fixed to the end of the rotary shaft of the motor and vertically facing the motor in the casing. One fan rotor and the other fan rotor are It faces the corresponding vent above or below the ridge, and horizontally faces the other motor in the casing in a posture in which the vertical positions are opposite to each other, and connects the outside of the casing with the blower unit. The duct joint is a heat exchange ventilation device that is open toward the motor of the corresponding blower unit.

According to a second aspect of the present invention, in the heat exchange ventilator according to the first aspect, the outer casing member and the casing of each blower unit are formed, and the insertion posture and the inserting direction of each blower unit with respect to the casing are regular. It is provided with a regulation means for regulating. Furthermore, the structure according to claim 3 is the heat exchange ventilation device according to claim 2,
The regulation means includes a mark portion which is formed on the outer shell member and is visible.

[0012]

According to the first aspect of the present invention, since the one fan rotor and the other fan rotor face the corresponding vent holes above or below the ridge line, the fan rotors and the vent holes are horizontally aligned. , And the path from the fan rotor to the corresponding vent can be short-circuited. Further, since the one fan rotor and the other fan rotor are horizontally opposed to the other motor in the casing in a posture in which the vertical positions are opposite to each other, the height dimension of the one fan rotor is It is possible to overlap the height dimension of the other motor. Also, it becomes possible to employ two motors.

Further, in the structure according to the second aspect, it becomes possible to prevent the blower unit from being used in the wrong direction or posture by the restricting means. Furthermore, in the configuration according to the third aspect, the insertion posture and the insertion direction can be identified by the appearance of the fan case.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will be described in detail below with reference to the accompanying drawings. FIG. 1 is a schematic perspective view of a ceiling-embedded heat exchange ventilation device according to an embodiment of the present invention, and FIG. 2 is a schematic of a blower unit used in the ceiling-embedded heat exchange ventilation device of FIG. FIG. 3 is a perspective view, FIG. 3 is a schematic front view of a heat exchange ventilator, (A) is a schematic front view of this embodiment, (B) is a schematic front view of a conventional example, and FIG. FIG. 5 is a schematic side view, (A) is a schematic side view of the present embodiment, (B) is a schematic side view of a conventional example, and FIG. 5 is a schematic plan view showing an enlarged main part of the present embodiment.

First, referring to FIG. 1, a ceiling-embedded heat exchange ventilation device 10 of the present embodiment is provided with a rectangular casing 11. The inside of the casing 11 is divided into two by the partition side plate 12, and the heat exchange element 15 is accommodated in one side and the blower units 20, 20 described later are accommodated in the other side. One side surface 11A of the casing 11 that intersects with the end surface of the partition side plate 12 is configured to be removable, and by removing the side surface 11A, the heat exchange element 15 and the blower units 20, 20 described later are inserted and removed. You can do it. On the other hand, duct joints OA and EA are attached to one side plate 11B which is parallel to the partition side plate 12, and duct joints RA and SA are attached to the other side plate 11C. And the duct joint OA and the duct joint RA are
The duct joint SA and the duct joint EA are communicated with each other through the air supply passage PS1 and the outlet passage PS2 formed in the casing 11, and the outdoor air introduced from the duct joint OA is passed through the air supply passage PS1. Air is introduced into the room from the duct joint RA, and the air in the room discharged from the duct joint SA is blown out of the room from the duct joint EA through the blowing passage PS2.

The heat exchange element 15 is formed by forming a sheet-shaped partition plate 15A having a high heat conductivity such as Japanese paper in a predetermined shape and further stacking the partition plates 15A at intervals so as to be orthogonal to the stacking direction of the partition plate 15A. A first ventilation port 16A that allows air to flow in one direction, a ridge line 15B that partitions a part of the first ventilation port 16A along the stacking direction, and a part of the ridge line 15B that is partitioned by the ridge line 15B. The second vent 16B is formed to allow air to flow in the other direction orthogonal to the stacking direction. In the heat exchange element 15, the first ventilation port 16A communicates with the air supply flow path PS1 and the second ventilation port 16B communicates with the ejection flow path PS2 in a state where the stacking direction is along the horizontal direction. ing.

Next, the blower units 20 and 20 of this embodiment will be described in detail with reference to FIGS. Each blower unit 20 is composed of a so-called motor-side suction type sirocco fan, and has a partition plate 23 horizontally arranged in the casing 11 and a partition plate 2.
3, a motor 21 arranged on one surface side, a fan rotor 22 arranged on the other surface side of the partition plate 23 and fixed to an end of a rotation shaft 21A of the motor 21, and the partition plate 23 integrally. The fan case 24 that is formed and covers the periphery of the fan rotor 22 to form a predetermined air flow path 241;
3 is provided with a protruding portion 25 protruding from the motor 21 side, and a fixing member 26 for fixing the motor 21 to the partition plate 23. In this embodiment, the partition plate 23, the fan case 24, and the projecting portion 25 constitute an outer shell member 20A of the blower unit 20, and the motor 21 and the fan rotor 22 are vertically separated by the partition plate 23. Is facing.

The partition plate 23 is made of a sheet metal material in the form of a thin plate having a rectangular shape in plan view, and is a dual-purpose member that partitions the air supply passage PS1 or the outlet passage PS2 and also serves as a mounting plate for the motor 21. is there. When this configuration is adopted, the number of parts can be reduced as compared with the case where the partition plate and the motor mounting plate are configured by separate members, and furthermore, the assembly error of the motor 21 with respect to the partition plate 23 can be eliminated and the product can be manufactured. There is an advantage that the assembling accuracy can be improved. As shown in FIG. 2, the partition plate 23 has an insertion hole 23.
A is formed, and the air passage 241 of the fan case 24 and the motor 21 side communicate with each other through the insertion hole 23A.

As shown in FIGS. 1 and 2, the blower unit 20 is inserted into the casing 11 along the stacking direction of the heat exchange elements 15. The fan case 24 has a handle 24B formed as a recess on one side surface 24A orthogonal to the insertion direction A thereof. This handle 24B is for allowing the operator to insert and remove the blower unit 20 by inserting his / her finger to easily perform the inserting / extracting operation. However, in the present embodiment, it also functions as a mark for visually observing the handle 24B and confirming the insertion / extraction direction of the blower unit 20. In this respect, the handle 24 in this embodiment is the casing 11
And a regulation unit that regulates the insertion attitude and the insertion direction of each blower unit 20 (especially the blower unit 20 on the downstream side in the insertion direction).

The fan case 24 and the protruding portion 25 are
In the mounting posture shown in FIGS. 1 and 2, the vertical dimension H is set to be equal. As a result, in this embodiment, as shown in FIG. 3A, it is possible to arrange the blower units 20, 20 upside down with respect to each other.
Further, the fan case 24 of the present embodiment is set to be longer in the insertion direction A than the partition plate 23, and the handle 24B is provided.
The one side surface 24A having the above and the corresponding surface of the partition plate 23 are fixedly fixed. Thereby, the shoulder portion J1 is attached to the other end surface 24C side portion of the fan case 24 and the partition plate 23.
Since the blower units 20 are formed in opposite directions and the shoulders J1 and J1 are butted against each other as described above, the actual seam joint J (see FIG. 1) can be performed. ing.

As shown in FIG. 4, in this embodiment, one fan rotor 22 and the other fan rotor 22 face horizontally to the corresponding vent holes 16A and 16B. At this time, the fan rotors 22 and 22 are connected to both vent holes 16A,
It is arranged above (or below) a ridge line 15A that divides 16B into upper and lower parts. Further, duct joints OA and EA for communicating the outside of the casing 11 with each of the blower units 20.
Are arranged in a staggered manner in the vertical direction, so that they open toward the motor 21 of the corresponding blower unit 20. As a result, the gap between the insertion hole 23A and the corresponding duct joint OA, EA is short-circuited, and an extra bend path is eliminated. Returning to FIG. 1, the blower unit 20 is
The blower unit 20 arranged on the downstream side in the insertion direction A is
The projecting portion 25 is arranged so as to face upward. At the same time, the L-shaped metal fitting 30 is provided on the inner wall of the casing 11.
Is fixed. The L-shaped metal fitting 30 faces between the protruding portions 25, 25 of the blower unit 20 on the downstream side and horizontally faces the blower unit 20 along the insertion direction A. Therefore, if the blower unit 20 disposed on the downstream side in the insertion direction A is in the reverse direction, the L-shaped metal fitting 30 and the fan case 24 come into contact with each other, as shown in FIG. The upstream blower unit 20 is a casing 1
As a result of being unable to insert into the inside of 1, it becomes possible for the maintenance worker to recognize an insertion error. However, in the present embodiment, as described above, since the seam joint J is actually used, the operator can identify the insertion direction A and the insertion posture of the blower unit 20 by the appearance, and the insertion error can be prevented. It can be prevented. In addition, in this embodiment, the widthwise dimension (dimension in the direction orthogonal to the insertion direction A) W of the fan case 24 is set shorter than the dimension L in the insertion direction A, so that the insertion direction is not erroneous. As described above, in the present embodiment, the dimension setting of the blower unit 20, the actual J-joint structure, and the L-shaped metal fitting 30 properly regulate the insertion posture and the insertion direction A of each of the blower units 20 and 20 with respect to the casing 11. It constitutes the regulation means to do.

According to the above configuration, one fan rotor 2
2 and the other fan rotor 22 face the corresponding ventilation holes 16A and 16B above or below the ridge line 15B, and as shown in FIG.
Since 1 and 21 are also horizontally opposed to each other with the corresponding duct joints OA and EA, as shown in FIG. 4 (A), the fan rotors 22 and the vents 16A and 16B are brought close to each other in the horizontal direction. Fan rotor 2 from outside casing 11
It is possible to short-circuit the path through 2 to the corresponding vent holes 16A and 16B.

Further, as shown in FIG. 3 (A), the one fan rotor 22 and the other fan rotor 22 are arranged in a casing 11 in such a manner that their upper and lower positions are opposite to each other. Since they are horizontally opposed, the height dimension of one fan rotor 22 and the height dimension of the other motor 21 can be overlapped. Moreover, it becomes possible to employ two motors 21.

Therefore, the extra bending space can be removed to reduce the pressure loss, while the two motors 21 can be adopted to exert a large air blowing ability. Moreover, in that case, the height dimension of the fan rotor 22 on one side and the height dimension of the motor 21 on the other side can be overlapped with each other. As a result, the vertical dimension of the casing 11 can be reduced. Even when the apparatus is arranged in a place where the mounting space is narrow in the vertical direction, a large fan can be arranged.

Further, in this embodiment, the restricting means (handle 24
B, the actual J-joint J structure, the L-shaped metal fitting 30 and the like) can prevent the blower unit 20 from being used in the wrong direction or posture, so that the blower failure due to the mounting error can be reliably ensured. It becomes possible to prevent. In particular, in the present embodiment, since the visible mark portions (the handle 24B, the actual joint J, etc.) formed on the outer shell member 20A are used as the restricting means, the insertion posture and the insertion direction A of the fan case are determined. It becomes possible to identify by appearance. Therefore, by visually observing the proper mounting state, it becomes possible to prevent mounting mistakes.

Therefore, according to the present invention, there is a remarkable effect that it is possible to provide the apparatus 10 having a good workability, which is capable of both improving the blowing ability and downsizing. It should be noted that the above-described 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 shown in FIG. 6, a notch 24E may be provided at one corner of the fan case 24, and a rail member 24F that engages with the notch 24E may be provided in the casing 11 to configure the regulation means. This notch 24E can also act as a visually observable mark portion.

Needless to say, various design changes can be made without departing from the scope of the present invention.

[0028]

As described above, according to the first aspect of the present invention.
In the configuration described, each fan rotor and the corresponding vent can be brought close to each other in the horizontal direction, and the path from the fan rotor to the corresponding vent can be short-circuited, so that an unnecessary bending space is removed. While the pressure loss can be reduced by adopting two motors, a large air blowing capacity can be exhibited. Moreover, in that case, the height dimension of one fan rotor and the height dimension of the other motor can be overlapped, so that the vertical dimension of the casing can be reduced, and as a result, the placement on the ceiling can be reduced. A large fan can be installed even when the device is installed in a narrow space in the vertical direction.

Further, in the structure according to the second aspect, it is possible to prevent the blower unit from being used in the wrong direction or posture by the restricting means, so that it is possible to surely prevent the blower failure due to the mounting error. It becomes possible to do. Furthermore, in the configuration according to the third aspect, the insertion posture and the insertion direction can be identified by the appearance of the fan case, so that a mounting error can be prevented and the workability can be further improved.

Therefore, according to the present invention, there is a remarkable effect that it is possible to provide a device having a good workability, which is capable of achieving both improvement of the blowing capacity and miniaturization.

[Brief description of drawings]

FIG. 1 is a schematic perspective view of a ceiling-embedded heat exchange ventilation device according to an embodiment of the present invention.

FIG. 2 is a schematic perspective view of a blower unit employed in the ceiling-embedded heat exchange ventilation device of FIG.

3A and 3B are schematic front views of a heat exchange ventilation device, FIG. 3A is a schematic front view of the present embodiment, and FIG. 3B is a schematic front view of a conventional example.

FIG. 4 is a schematic side view of a heat exchange ventilator, (A) is a schematic side view of the present embodiment, and (B) is a schematic side view of a conventional example.

FIG. 5 is a schematic plan view showing an enlarged main part of the present embodiment.

FIG. 6 is a schematic view showing another embodiment of the present invention.

FIG. 7 is a schematic cross-sectional view of a conventional heat exchange ventilation device.

[Explanation of symbols]

 10 Ceiling-embedded heat exchange ventilation device 11 Casing 15 Heat exchange element 15A Partition plate 15B Ridge line 16A First ventilation port 16B Second ventilation port 20 Blower unit 20A Outer shell member 21 Motor 22 Fan rotor 24B Handle (regulating means: mark) 24E Notch (Regulator: Marker) 24F Rail (Regulator) 30 L-shaped metal fitting (Regulator) J Actual joint (Regulator: Mark)

Claims (3)

[Claims] 1. A plurality of partition plates (15A) stacked in one direction at intervals, and a first vent hole (16) for circulating air in one direction intersecting the stacking direction of the partition plates (15A).
A), the first vent hole (16) along the stacking direction.
A) a ridge line (15B) for partitioning a part of A), and a second vent hole (16B) for partitioning the ridge line (15B) and for allowing air to flow in the other direction intersecting the stacking direction. Having a polygonal columnar heat exchange element (1
5) and a casing (11) for accommodating the heat exchange element (15) therein such that the ridgeline (15B) extends horizontally.
And a pair of blower units (20) connected along the ridgeline (15B), each blower unit (20) has an outer shell member (20).
A) and a motor (2) attached to the outer member (20A)
1) and a fan rotor (22) fixed to the rotary shaft end of the motor (21) and vertically facing the motor (21) in the casing (11). One fan rotor (22) And the other fan rotor (2
2) refers to the corresponding vent holes (16A, 16B) above or below the ridgeline (15B), and
When the casing (1
1) A heat exchange ventilation device, which is horizontally opposed to the other motor (21) in the inside. 2. The heat exchange ventilator according to claim 1, wherein the outer casing member (20A) and the casing (11) of each blower unit (20) are formed with respect to the casing (11). Regulation means (20A, 24B, J, 30) for regulating the insertion posture and the insertion direction properly
Is provided. 3. The heat exchange ventilator according to claim 2, wherein the restriction means includes a visible mark portion (24B, J, 24E) formed on the outer shell member (20A).