JPS5896931A - Ventilating fan with heat exchanger - Google Patents

Abstract

PURPOSE:To facilitate setting of various capacities, by a method wherein a plurality of a basic blow units, which are constituted such that a motor-driven sirocco fans are placed in a spiral case, are held in jaxtaposition with each other, and a direction of each spiral is arbitrarily set to a suction or an exhaust side. CONSTITUTION:A basic blow unit 100 is constituted such that a pair of spiral cases 107 and 108, which are capable of varying a blow direction simply by changing an assembling direction, are installed, and motor-driven sirocco fans 105 and 106 are housed in each case. A ventilation fan for a suction or an exhaust exclusive use is constituted by matching the direction of the two cases 107 and 108 with the direction of the cases 107 and 108 shown in a solid line or a dashed line. A plurality of units 100 are prepared and piled up as blow units 110 and 120 for a suction and an exhaust exclusive use, and this allows easy formation of ventilation fan having various capacities. A heat exchanger 202 is positioned so that it stretches over each suction and exhaust port of the ventilation fan.

Description

[Detailed Description of the Invention] The present invention relates to a ventilation fan equipped with a heat exchanger that performs heat exchange between an intake flow and an exhaust flow, and particularly provides a structure for increasing ventilation capacity. be.

2. Description of the Related Art A ventilation fan equipped with a heat exchanger having a structure shown in FIG. 1 has been proposed. To briefly explain this structure, 1 is an outer frame, and this outer frame is composed of a front case 1a for housing the La1 transformation heat exchanger n2, and a main body case 1b for housing the fan.

Main body case 11) The following items are stored in the VC. That is, 3 is a partition plate that partitions the center of the main body case 1b into upper and lower parts, and a motor 4 for driving a fan is attached to the center part. 5.6 is the tI of the motor 4 which has a dual wheel structure! 1 is a fan attached to a rotating shaft, 7.8 is a spiral case that covers each fan 5.6, and 9.10 is an intake port and an exhaust port on the outdoor side. The following items are stored in the front case 1a. That is, 11 is an intake/exhaust port on the guide side, and 12 is a holder 13 attached to the inside of the intake/exhaust port 11, which is a storage case for the rotary heat exchanger/exhaust exchanger 2. With this configuration, when the motor 4 starts operating, the outside air is forced into the spiral case 7 through the air outlet 9 as shown by the arrow
The air passes through the rotary shape exchanger 2 completely and is discharged into the room from the air intake and exhaust port 11. At the same time, the air on the guide side indicated by the nine heavens mark Y, which is sucked into the spiral case 8 through the rotary shape exchanger 2 from the intake/exhaust port 11, is discharged to the outside from the discharge port 10. In this way, LE! When the J-shaped heat exchanger 2 is gently rotated, for example, in the Z direction, heat exchange is performed between the intake air flow X and the exhaust air flow Y via the rotational heat exchanger 2.

Now, in such products, when trying to create a series of products with various capacities while adopting the same structure, it has been conventionally done to scale up each component. However, with this method, the size of the parts will differ for each series, and not only will it be impossible to share parts between series, but it will also be necessary to prepare a considerable number of parts for the series as a whole. Therefore, the present invention provides a ventilation fan equipped with a heat exchange fl structure that allows a product with a large capacity to be assembled by simply preparing a basic ventilation unit.

That is, the present invention includes a fan driving motor and the
A basic ventilation unit is prepared, which consists of a plurality of spiral cases e placed between each spiral case, and a sirocco fan placed inside each spiral case and connected to a motor. A plurality of spiral cases are held by a holding means such as a collection case so that the intake and exhaust directions are almost parallel, and a heat exchanger is placed across the air intake and exhaust ports of each spiral case to achieve heat exchange of 8 iM. We will continue to manufacture ventilation fans that are biased towards the future.

6. Embodiments of the present invention will be explained in detail below. 6 Figures 2 and 3
First, we will explain the basic idea of Hon@Ming using Figure 4. That is, in the present invention, the basic ventilation unit 100 is first prepared. That is, this basic ventilation unit 100 is the sixth
As schematically shown in the figure, the spiral case 107,1
08 is assembled so that the air blowing direction can be changed simply by changing the direction. As a result, as shown in FIG. 4, which is a schematic plan view of the basic blower unit 100, the basic case 100
If you match the direction of both spiral cases 107 and 108 (7) stored in b to the direction of the spiral case 107 shown in the figure, there will be one ventilation fan for intake only.
By aligning the direction of the spiral case 108 with the direction of the spiral case 108 shown by the broken line, a ventilation fan exclusively for exhaust can be constructed. Now, such a basic ventilation unit) ID
If you prepare o.

As shown in FIG. 2, ventilation fans of various capacities can be easily obtained. In other words, the storage direction of the spiral case of the basic ventilation unit 100 is changed to create a basic ventilation unit (110) exclusively for intake, and a basic ventilation unit (120t) exclusively for exhaust.
If you prepare and use it repeatedly, as shown by d in the figure, it will emit twice as much air as the basic air blower unit i oo! Have IL'Jk! ! J
You can get II Kisen.

In addition, as shown by e in the figure, when two basic ventilation units (110 and 120t) are combined, a ventilation fan with a discharge air volume four times that of the basic ventilation unit IDO can be obtained.The ventilation fan configured in this way By arranging a heat exchanger across each intake/exhaust port, waste heat in the exhaust gas can be recovered into the intake air.6 To further explain with reference to FIG.
This is a basic ventilation unit configured exclusively for exhaust, and is stacked in two stages and fixed to each other. At this time, the plane containing the rotation axis l of the rotary shape exchanger 2L]2? The spiral cases 1o7 and 108 of the basic ventilation units 110 and 120 are sandwiched in such a way that the air intake and exhaust directions are opposite to each other.
.

200 is a storage case for a rotary air exchanger 202 with a cylindrical wind tunnel attached to the basic case 1oob of the basic ventilation units) 110, 120, and the back side is the intake/exhaust port 111a, 111b of the basic ventilation units) 110, 120. 62υ1, which has an opening that communicates with the The operation of the ventilation fan equipped with the heat exchanger connected to the center of the exchanger 202 will now be described. First, when the motor 201 is operated, the rotational shape exchange n202 slowly starts to rotate VC. Next, when the motor 104 of the one-car basic blower unit 110° 120 starts operating, the sirocco fans 105, 10
6, the outside air sucked in through the intake and exhaust ports 109a and 109b on the basic ventilation unit 110 side is supplied to the intake and exhaust port 111a.

11 l b, arrow person through the rotary shape exchanger 202 .

As shown by X, it is sucked out to the indoor side. At the same time, on the basic blower unit 120 side, air from the indoor side sucked in from the intake/exhaust ports 111a, 111tl through the rotary exchanger J2 is transferred to the outdoor side from the respective intake/exhaust ports 109a, 109b as shown by arrows Y, Y. A snide comment is made. In this way, air from the outdoor side alternately flows into each part of the recirculating heat exchanger 202.

Since X, and indoor airflows Y,,Y, pass through, the airflows X,,X pass through the rotary shape exchanger 202.

Heat exchange takes place between and the air streams Y,,Y,.

Now, we will explain in detail the details of the ventilation fan, which is a heat exchanger constructed as follows.

First, the details of the ventilation fan section will be explained with reference to FIG. Reference numeral 104 denotes a slanted double-shaft aluminum motor for driving the sirocco fans 105 and 106, and is attached to the partition plate 103. After the motor 104'jt is attached to the partition plate 105, the sirocco fan 105 is attached to the rotating shaft of the motor 104. After this, one of the scirocco fans 106 is attached to the rotating shaft of the motor 104 so as to sandwich the partition plate 103 between the spiral cases 1 and 108 . The assembled parts stacked in this way are assembled into a basic case 100b.
A basic ventilation unit 110 or 120 is installed in the unit.

At this time, one basic ventilation unit 110 or 12
By installing the spiral cases 107 and 108 so that the air outlet couple 1 or suction side are arranged on the same surface, the basic ventilation unit 110 for intake only or the basic ventilation unit 12 for exhaust only can be installed.
It constitutes 0. Further, the basic case 100b is preferably a rectangular tube with both opposing sides open. Two types of basic ventilation units configured in this way) 110, 12
0 is further housed in the collection case 210 so that the air intake and exhaust directions are substantially parallel. This collection case has one side opened and a large number of through holes provided on the back surface facing the opening to allow air to circulate. At this time, two types of basic ventilation units 110 or 120
instead of preparing.

A similar ventilation fan can be constructed by changing the direction of one of the basic ventilation units 110 or 120 and housing it in the collection case 210.

Next, a collection case 21 incorporating each component in this way
The parts shown in FIG. 7 and FIG.
This storage case has a rectangular cylindrical body, and one opening is connected to the nine openings of a collection case 210 via an eaves portion 205 extending inward from the body surface. , 205 is a motor support plate extending from the cylindrical surface of the storage case 200, and a motor 201 for driving the rotary shape exchanger 202 is attached to the center of this motor support plate 203.

Reference numeral 204 indicates a filter placed in a part of the storage case 200, particularly through which air from outside passes, and 206 and 207 indicate seals that come into contact with the end face of the rotary shape exchanger 202, and are used to support the motor in order to prevent mixing of the intake air flow and the exhaust air flow. It is attached to the plate 203. 208 is a rotor case disposed within the storage case 200, and has a cylindrical cavity 209't- for housing the rotary shape exchanger 202;
This is a seal that is installed in the rotary shape exchanger 202 and comes into contact with the cylindrical surface of the rotary shape exchanger 202 to prevent mixing of intake air flows. After fixing the rotor case 208 in the storage case 200, the rotational state exchanger 202 is housed in the cavity 209 of the rotor case 208 and connected to the rotating shaft of the motor 201. 215rI'i A filter that covers the front of the rotary heat exchanger 202, 214 is a front case, and has many through holes 21.
Has 5. After various parts are assembled to the storage case 200, the front case 214 is placed over the storage case 200 and fixed to the wide cylindrical surface of the storage case. In this way, the outside WA is shown in Figure 9.
Ventilation M equipped with a heat exchanger as shown is completed.

To further explain with reference to Figure 10, if a ventilation fan equipped with a large capacity heat exchanger is created by combining small capacity basic ventilation units instead of relying on scaled-up ventilation units, the first-order type will be created. There are advantages. That is, if a scaled-up blower is used as shown by the broken line f, the wind speed distribution will be biased outward (toward the centrifugal direction) as shown by the curve g. If the wind speed distribution is biased outward in this way, the outer portion of the rotating heat exchanger 6202 that faces this will quickly become thermally saturated, making it impossible to recover waste heat sufficiently. Furthermore, the inner portion of the rotary heat exchanger 202 is not fully utilized because very little air passes through it. Furthermore, the maximum wind speed also increases, resulting in an increase in licking noise.

In order to correct this, it is conceivable to provide an air flow distribution plate between the outlet of the blower JAF and the rotary heat exchanger 202. However, in this case, the structure of the device becomes complicated and large.On the other hand, in the case where multiple basic air blowing units are combined as shown in the curve 1, the rotary heat exchanger 202 is Since it is possible to obtain a uniform wind speed distribution over almost the entire surface, the rotary type heat exchanger 2
It is possible to increase the utilization rate of 02. As the depth of the blower casing becomes smaller, the entire device can be constructed in a smaller size.

Now, in the case 100b, the basic case 100b is explained in 1.
Basic ventilation unit XILl that can be put together using.

120, etc. are further stored in the collection case 210. In this case, a cross-shaped partition plate is provided in the collection case 210, and each part of the collection case partitioned by this partition plate is provided with a basic ventilation system. It can also be configured to house units. In addition, at this time, at least a part of the spiral case that constitutes the basic ventilation unit is made of an elastic material, such as foamed synthetic resin, and the external dimensions of the spiral case that is stacked with the motor in between are slightly larger than the inner dimensions of the basic case. If this is selected, the spiral case can be fixed within the basic case due to the elastic compressive force of the spiral case without using fixing means such as screws.A Also, if this idea is developed, Even without using a basic case, a plurality of basic air blowing units configured by being sandwiched between spiral cases can be housed directly in the collection case. At this time, if necessary, a partition plate is placed between each basic air blowing unit by using the elastic compressive force of the spiral case.

In the above explanation, it is a rotational shape exchange made of rolled paper or pulp material! iS't-Although the present invention is not limited to the above, the present invention allows other types of heat exchangers to be arranged between the inlet and the outlet of each basic blower unit. . The motor that drives the fan was once attached to a partition plate, and the partition plate was held between the spiral cases.This was achieved by modifying the shape of the motor housing and the shape of the spiral case. Therefore, the motor can be directly sandwiched and supported by the spiral case to form a basic ventilation unit.

As is clear from the above description, the present invention consists of a motor for driving a fan, a plurality of spiral cases arranged to sandwich the motor, and a circular scirocco fan connected to the l'l of the spiral case. A plurality of basic ventilation units are prepared, and these basic ventilation units are arranged so that the airflow directions of each basic ventilation unit are almost parallel,
The basic air blowing units are held together by holding means, and a heat exchanger is disposed around the air intake and exhaust ports of each basic air blowing unit. Therefore, according to the present invention, it is possible to manufacture ventilation fans with various heat exchanger capacities by simply preparing one type of basic ventilation unit.

[Brief explanation of the drawing]

Fig. 1 is a partial cross-sectional view for explaining the structure of a conventional 9C fan equipped with a heat exchanger, Fig. 2 is a schematic diagram for explaining one development process of the present invention, and Fig. 5 4 is a schematic cross-sectional view for explaining the structure of the basic blower unit, FIG. 4 is a schematic plan view for explaining the arrangement of the spiral case of the basic blower unit, and FIG. 5 is a schematic cross-sectional view for explaining one embodiment of the present invention. Fig. 6 is a diagonal exploded assembly diagram explaining the assembly process of the * example;
@Figure 8 is an exploded assembly diagram to explain the W4 part of the heat exchanger part of the example, iJ! Figure 9 is a diagram showing the completed product of the example, and Figure 0 is a diagram showing the wind speed distribution of the example. 100.110,120...Basic ventilation unit, 10
4...Motor, 105,106...Sirocco fan, 107,108...Spiral case, 202...
- Rotating shape exchanger, 210...holding means,! ...Representative of the rotating shaft of a rotary shape exchanger Patent attorney Susuki 1) Ri Muro body in figure side 2 figure 3 figure sweet 4 figure +52 body 6 eyes appetizer 7 countries 1 figure 70 eyes

Claims (1)

[Claims] t. A basic ventilation unit consisting of a motor, a plurality of spiral cases arranged to sandwich the motor, and a friend sirocco fan arranged in the spiral case and connected to the motor;
A holding means for holding a plurality of basic air blowing units so that the air intake and exhaust directions of each spiral case are almost parallel, and a heat exchanger that extends to the air intake and exhaust ports of each spiral case. A ventilation fan equipped with a heat exchanger. 2. In claim 1 of the WU patent claim, a rotary type heat exchanger is provided which straddles the air intake and exhaust ports of each spiral case, and a rotary type heat exchanger is provided that straddles the air intake and exhaust ports of each spiral case, and the air is heated across a plane including the rotation axis of the rotary type heat exchanger. A next exchange 9C fan equipped with a heat exchanger characterized by arranging the spiral cases of each basic air blowing unit in a Y-pair direction with respect to the intake and exhaust direction.