JPS58179743A - Air-conditioning ventilating fan - Google Patents

Abstract

PURPOSE:To impove a heat-exchange rate, and to obtain the air-conditioning ventilating fan provided with force simultaneous air-supply and exhaust ventilation passing no heat-exchange element and the function of a circulator by opening and closing a path changeover damper at fixed time intervals and replacing each ventilation flue for exhaust and air-supply in the heat-exchange element. CONSTITUTION:A louver 5 with an indoor-side suction port 6 and a discharge port 7 is fitted to the front of a main body 1 with an outdoor-side suction port 2, a discharge port 3 and a parting plate 4, and the heat-exchange elements 8 formed by alternately laminating heat-transfer plates and space plates are set up at positions adjacent to the louver 5 in the main body 1. Partition plates 11a, 11b, 12 are brought into contact with the three angle sections of the heat-exchange elements 8, and a parting plate 15 with the dampers 13, 14 selectively opening and closing four openings formed left and right and up and down is positioned to a residual angle section. Casigns 17, 19 for exhaust and air-supply are mounted into each left and right chamber partitioned by the parting plate 4 in the main body 1, and blades 16, 18 for exhaust and air-supply are turned by a motor 20 in each casing 17, 19.

Description

[Detailed Description of the Invention] The present invention relates to an air conditioning ventilation fan, and its purpose is to:
The passage switching damper is opened and closed at predetermined time intervals to improve heat exchange efficiency and the durability of the heat exchange element, and when air conditioning is not being performed, forced simultaneous supply and exhaust is performed without heat exchange to increase the ventilation air volume. The increase in
) The idea is to use it as a circulator during heating and cooling to improve the effectiveness of heating and cooling.

Conventionally, as shown in FIG. 1, in an air ventilation fan, a heat exchange element 101 is fixed at the intersection of an exhaust ventilation path and an air supply ventilation path, and exhaust vanes 1o2 and supply air vanes 103 are rotated by a motor 104 to exchange heat. The element 101 was used to exchange heat. The heat exchanger plate of the heat exchange element 101 is made of general moisture-permeable paper or the like, or paper originally has a low thermal conductivity and is twisted, and humidity is exchanged by passing through the paper, so the heat exchange rate is low. could not be said to be sufficiently high, and the dust in the shredded exhaust air and air supply adhered to the surface of the paper, reducing the thermal conductivity and humidity exchange rate. filter 1 for
05 was used to remove dust, but minute particles passed through the filter 106'i, resulting in a decrease in the heat exchange rate as described above, and the filter 105 itself acted as a resistance, which was undesirable.

The air conditioning ventilation fan performs its function during cooling and heating, but in the intermediate seasons of spring and autumn, even though there is no need for heat exchange, exhaust air and supply air pass through the heat exchange element 101. Conventional air ventilation fans cannot effectively utilize air volume and can only perform total heat exchange ventilation or sensible heat exchange ventilation. For example, in basements, total heat exchange ventilation is usually sufficient, but in the summer when humidity is high. However, although it is necessary to carry out sensible heat exchange ventilation, it has the disadvantage of not being able to do so. During heating and cooling, there is a considerable temperature difference between the ceiling and the floor, so it is desirable to install a circulator, but it is not possible due to cost, space, etc. to install an air conditioner, an air ventilation fan, and a circulator in the same room. there were.

The present invention eliminates such conventional drawbacks, and will be explained below based on FIGS. 2 to 13.
In the figure, 1 is a main body having an outdoor suction port 2, an outdoor discharge port 3, and a partition plate 4, and 5 is a louver having an indoor suction port 6 and an indoor discharge lower, which is fitted into the main body 1. 8
1 is a heat exchange element, which is made of a moisture-impermeable material and is alternately laminated with heat transfer plates 9 having moisture-absorbing materials on both sides and spacer plates 10i having moisture-absorbing properties. 11a and 11b are partition plates formed on the main body 1, and 12 is a partition plate formed on the louver 6, the ends of which are in contact with the ridge of the heat exchange element 8 in the O passage switching damper 1.
3 and 14 are partition plates 15 that are in contact with the edges of the heat exchange element 8;
A Dan that selectively opens and closes four openings provided in the
C-, in which two diagonally located openings can be opened at the same time and the other two openings can be closed at the same time. 16 is an exhaust vane, 17 is an exhaust casing, 18 is an air supply vane, 19 is an air supply casing, and 20 is a motor for rotating the exhaust vane 16 and the intake air vane 18.

In the above configuration, A→A' indicates an exhaust ventilation path, and indoor air enters the heat exchange element 8 from the indoor side suction port 6 of the louver 5, passes through the exhaust casing 17, and is driven by the exhaust vane 16 rotated by the motor 2o. The air is exhausted to the outside from the outdoor discharge port 3 of the main body 1. In addition, B → B' indicates a supply air passage, and outside air is passed from the outdoor side suction port 2 of the main body 1 to the supply air casing 19, and then is sent to the heat exchange element 8 by the supply air vane 16 rotated by the motor 20. The air enters the room and is supplied into the room from the indoor side discharge port of the louver 6.

In this way, indoor air flows along the exhaust ventilation path A→A', outside air flows along the supply air ventilation path B→B', and sensible heat and latent heat (moisture) are exchanged in the heat exchange element 8. This will be described in detail below.

During cooling, the indoor air, which is lower in temperature and humidity than the outside air, enters the heat exchange element 8 along the exhaust air passage A→A' and passes through the heat exchanger plate 9 of the heat exchange element 8 to the air supply air passage B. → Sensible heat is taken away from the outside air supplied into the room along B', and moisture is desorbed from the moisture absorbing material of the heat transfer plate 9 and the spacer plate 1°, becoming high temperature and high humidity and being exhausted to the outside. In this case, desorption heat (negative due to an endothermic reaction) is generated, which exchanges heat with the outside air and lowers the temperature of the high-temperature indoor air. Sensible heat is taken away from the outside air and used effectively. On the other hand, air supply ventilation path B→B'
The outside air, which is hotter and more humid than the indoor air, enters the heat exchange element 8 along the heat exchange element 8 and is exhausted outside along the exhaust ventilation path A→A' via the heat transfer plate 9 of the heat exchange element 8. Sensible heat is imparted to the indoor air, and moisture is adsorbed by the moisture absorbing material of the heat transfer plate 9 and the spacer plate 10, and the air is supplied into the room at a low temperature and low humidity. In this case, adsorption heat is generated and heat exchanges with the indoor air, raising the temperature of the outside air which has become low temperature. This can be solved by imparting sensible heat to the air.

Next, when the moisture absorption material of the heat transfer plate 9 and the spacer plate 1o reach near saturation, the passage switching damper 1
When 3 and 14 are switched open and closed, the outside air will pass through the layer of the heat exchange element 8 that the indoor air was passing through before switching, and the transmission of air in this layer, which is low temperature and low humidity due to the indoor air, will be carried out. Sensible heat of the outside air is taken away by the heat plate 9 and the spacer plate 10, moisture is adsorbed, and the air is supplied into the room at a lower temperature and lower humidity than the outside air. Then, the heat exchanger plate 9 and the spacing plate 1
The heat will soon accumulate and reach saturation at 100°C, and will be taken away by the indoor air exhausted to the outside via the heat exchanger plate 9.

In addition, heat of moisture adsorption is generated, which is applied to the exhausted indoor air via the heat exchanger plate 9, as described above. On the other hand, indoor air will pass through the heat exchange element 80 layer through which the outside air has passed, and the air passing through it will be Sensible heat is applied, moisture is desorbed, and the air becomes hotter and more humid than indoor air and is exhausted outdoors. Then, the sensible heat stored in the heat exchanger plate 9 and the spacer plate 1o will be radiated soon, and the sensible heat will be taken away from the outside air supplied into the room via the heat exchanger plate 9. In addition, heat of desorption of moisture (negative due to adsorption reaction) is generated, but this is effectively utilized as it is taken away as sensible heat from the supplied outside air via the heat exchanger plate 9 as described above.

This operation is repeated to perform total heat exchange ventilation between indoor air and outdoor air. Sensible heat can be exchanged not only through the heat exchanger plate 9, but also through heat storage and heat radiation. The exchange is carried out by adsorption and desorption between the adsorption plate of the heat transfer plate 9 and the spacing plate 10, and the heat of adsorption and desorption can also be used effectively through the heat transfer plate 9, eliminating its harmful effect. Compared to exchanging sensible heat and moisture through a humid heat exchanger plate, the total heat exchange rate is considerably improved. Note that during heating, the heat exchange rate is improved by the same effect.

In addition, even if dust adheres to the end face of the heat exchange element 8, which was the inlet at some point in the exhaust ventilation path and the supply air ventilation path,
By switching the opening and closing of the passage switching damper 13.14, dust is blown away as an outlet, and by switching the opening and closing of the passage switching damper 13.14 on the heat exchanger plate 9, the wind direction can be changed to the heat exchanger plate 9-. Since this is reversed, even the smallest amount of dust does not adhere and accumulate, and it is possible to prevent the air heat exchange rate from decreasing due to clogging of the end face of the heat exchange element 8 and the heat exchanger plate due to dust. There is an advantage that there is no need for cleaning, and there is little need for cleaning.

In addition, unless the passage switching dampers 13 and 14 are opened and closed, moisture will not be exchanged and only sensible heat will be exchanged. Exchange ventilation makes it possible to lower the temperature while keeping the basement mostly at a low temperature, which is very effective.

8 and 9 show other embodiments, and the same numbers indicate the same parts as in the first embodiment. In the figure, 21 is an opening provided in the partition plate 22 for communicating the indoor side suction port 6 and the outdoor side suction port 2, and 23 is an opening provided for communicating the indoor side discharge lower and the outdoor side discharge port 8. , an opening provided in the partition plate 24, 26 a damper for arbitrarily opening and closing the opening 21, and 26 a damper for arbitrarily opening and closing the opening 23.

In the above configuration, as shown in FIGS. 8 and 9, the damper 25.
When the motor 2o is operated with 26 open, indoor air is blown in from the indoor discharge lower of the louver 6, and the arrow
-+ Through the opening 23 as indicated by X', the air is exhausted from the exhaust casing 17 to the outside from the outdoor outlet 3 by the exhaust vanes 16.

On the other hand, outside air is supplied into the room from the indoor side suction port 6 of the louver 6 through the air supply casing 19 from the outdoor side suction port 2 as shown by the arrow Y-+Y', through the opening 21 by the air supply vane 18. It bothers me.

Therefore, the exhaust ventilation path A −+ A′ and the supply air ventilation path B −
+ Heat exchange element 8 with considerable resistance at B'
Since indoor air and outdoor air can be forced into the air at the same time without passing through the air, the original air volume of the blower can be used effectively during the spring and autumn seasons, and cooling with outside air is also possible, especially before and after the cooling season. .

10 to 13 show other embodiments, and the same numbers indicate the same parts as in the first and second embodiments. In the figure, 27 is a circulation opening provided in the partition plate 4, and is an exhaust ventilation passage A.
-+ A' and air supply ventilation path B -+ B' are communicated.

Reference numeral 28 denotes an external shutter 30 fixed to the VC so as to be parallel to the Nyanotar rotation axis 29, and the Nyanotar rotation axis 29.
This shutter is formed by an internal shutter 31 fixed at right angles to the shutter, and opens and closes around the shutter rotation axis.

When the shutter 28 is opened as shown in FIGS. 10 and 11, the outdoor side suction port 2 and the outdoor side discharge port 3 are opened to the outside air by the external shutter 3o, and the circulation opening 27 is closed by the internal shutter 31. When the shutter 28 is closed as shown in FIGS. 12 and 13, the outdoor side suction port 2 and the outdoor side discharge port 3 are closed by the external shutter 30 and are isolated from the outside air, and the internal shutter 31 opens the circulation opening 27.

- In the above configuration, when the shutter 28 is closed, the outdoor side suction port 2 and the outdoor side discharge port 3 are closed, and the circulation opening 2 is closed.
7 is opened, the exhaust ventilation passage A - + A' and the supply air ventilation passage B - + B' are communicated, and the indoor air is sucked in from the indoor discharge lower as shown by the arrow Z→2', and the air is drawn through the opening 21. After that, the air is sent from the exhaust casing 17 to the circulation opening 27 by the exhaust vane 16, and then from the air supply casing 19 through the opening 23 by the air supply vane 18 to the indoor suction port 6.
is discharged into the room. Therefore, it has the function of a circulator, and for example, during heating, warm air that has accumulated near the ceiling can be blown downward.
Discomfort caused by uneven temperature distribution can be eliminated, and the heating effect can be improved.

In addition, in the first embodiment of the present invention, the heat exchanger plate 9 of the heat exchange element 8
has a moisture-absorbing material on both sides of a moisture-impermeable material,
If it is made of a material with moisture permeability and hygroscopicity, sensible heat and moisture can be exchanged through the heat exchanger plate 9, compared to exchanging only sensible heat through the heat exchanger plate as in the first embodiment. Heat exchange rate is improved. Then, as in the conventional case, the passage switching damper 13,
If 14'i is not moved, sensible heat and moisture will be exchanged only through the heat exchanger plate, but according to the present invention, if the passage switching damper 13 and 14'i are switched to open and close, the heat exchanger plate 9 and the spacer plate will be exchanged. At step 10, exchange is performed through heat storage and heat dissipation and moisture adsorption/desorption.'! This has the advantage of improved efficiency.

Furthermore, if the heat exchanger plate 92 of the heat exchange element 8 and the spacer plate 10i are made of a moisture-impermeable and non-hygroscopic material, only sensible heat is exchanged via the heat exchanger plate 9, but the passage switching damper 13 ．．
When 14i is opened and closed, the heat transfer plate 9 and the spacing plate 10 are connected as described above.
Because of the heat storage and heat dissipation effect, the heat exchange rate decreases by 1, and no moisture exchange takes place, so for example, you can protect the bathroom from moisture damage by discharging moisture like in a bathroom, and also prevent the moisture from being released outside by exhaust air. It is extremely effective when it is necessary to recover heat and keep the bathroom warm.

As described above, according to the present invention, by opening and closing the passage switching Danno ζ- at predetermined time intervals and replacing the exhaust ventilation passage and the supply air ventilation passage within the heat exchange element, the heat exchange efficiency is improved, and the It is possible to prevent dust from accumulating on the exchange element, eliminate the need for a filter, prevent a decrease in heat exchange efficiency and air volume due to accumulation of dust, and improve the durability of the heat exchange element. In addition, during the intermediate period when heating and cooling is not performed, forced simultaneous supply and exhaust ventilation can be performed without passing through a heat exchange element, increasing the ventilation air volume.Furthermore, the shutter can also be used as a circulator during heating and cooling. If the heat exchange element is made of a material that is moisture permeable and absorbent, or a material that is impermeable and does not absorb moisture, the heat exchange efficiency will be improved.
In addition, it becomes possible to perform heat exchange ventilation that is most suitable for the place of use, and it becomes possible to provide an air conditioning ventilation fan that has many excellent functions, which is extremely effective.

[Brief explanation of the drawing]

Fig. 1 is a side sectional view of a conventional air conditioning ventilation fan, Fig. 2 is a plan sectional view of the air conditioning ventilation fan according to the first embodiment of the present invention when the passage switching damper is held in a position parallel to the partition plate, and Fig. 3. is a sectional view of the same side, FIG. 4 is a plan sectional view when the passage switching damper of the same embodiment is switched, FIG. 5 is a sectional view of the same side, FIG. 6 is a perspective view of the same embodiment, and FIG. 7 is a sectional view of the same side. A perspective view of the heat exchange element, FIG. 8 is a cross-sectional plan view of the second embodiment of the present invention, FIG. 9 is a cross-sectional view of the same side, and FIG. 1o is a cross-sectional plan view of the third embodiment of the present invention when the shutter is open. Figure 11 is a sectional view of the same side, Figure 12 is a sectional view of the same side.
The figure is a plan sectional view of the third embodiment of the present invention when the shutter is closed, and FIG. 13 is a sectional view of the same side. 1...Main body, 2...0Outdoor suction port, 3.
Φ...Outdoor discharge [], 4...-...Partition plate,
5...Louver, 6...Indoor suction port,
7... Indoor side discharge port, 8... Heat exchange element, 9... Heat transfer plate, 10... Spacer plate,
11 Self... Division board, 12...■ Division board, 13
1I...Φ・Aisle switching damper, 1411...0・Aisle switching damper, 15...Partition plate, 16...
...Exhaust vane, 17...Exhaust casing, 18...Air supply vane, 19...Air supply casing, 2o...@e motor , 21・-・
...Opening, 22.Φ...Dividing board, 23...
...Opening, 24...Dividing plate, 26...0-
Damper, 26-・e・・Damper, 27・OII・・
Circulation opening, 281Il+lI・■Shutter, 29・
l...Shutter rotation axis, 3o...Fist...External shutter, 31φ...Internal shutter. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 2 Figure 3 Figure 4 Figure 5 Part 156 Item 71.4 Figure 8 Figure 9 Spear 10fA Figure 11

Claims (1)

[Scope of Claims] (1) A main body having an exhaust ventilation passage that communicates an indoor side suction port and an outdoor side discharge port, and an air supply ventilation path that communicates an indoor side discharge port and an outdoor side suction port, and the exhaust ventilation A blade for blowing air to the street, a blade for blowing air to the air supply air passage, a motor for rotating them, and a moisture absorbing air filter on both sides provided at the intersection of the exhaust air air passage and the air supply air passage. A heat exchange element formed by alternately laminating a moisture-impermeable heat exchanger plate having a layer made of a material with excellent properties and a spacer plate that holds the heat exchanger plates at a predetermined interval; an opening that communicates the indoor side suction port and the outdoor side discharge port via a heat exchange element; and an opening that communicates the indoor side discharge port and the outdoor side discharge port via a metal heat exchange element. an opening that is located in the air supply air passage and communicates the indoor side outlet and the outdoor side suction port via a heat exchange element; A partition plate having an opening communicating through the exchange element is provided between the heat exchange element and the blade for blowing air to the exhaust ventilation path and the supply air ventilation path, and the opening of the partition plate is connected to the chamber. The inner side suction port and the outdoor side outlet are communicated via a heat exchange element, and at the same time, the indoor side outlet and the outdoor side suction port are communicated via a heat exchange element, or the indoor side outlet and the outdoor side outlet Di are connected through a heat exchange element. a dialer that selectively switches the indoor suction port and the outdoor suction port to communicate with each other via the heat exchange element while communicating with each other via the heat exchange element;
Air conditioning ventilation fans installed in the exhaust ventilation tract and the supply ventilation tract. (2) The main body is configured to provide exhaust ventilation so that the indoor side suction port and the outdoor side suction port are all in arbitrary VC communication or closed, and the indoor side discharge port and the outdoor side discharge port are arbitrarily communicated or closed. Claim 1, characterized in that the partition wall between the passage and the air supply ventilation passage is provided with an opening and a damper that opens and closes with the opening.
Air conditioning ventilation fan as described in section. (3) The main body arbitrarily communicates or closes the indoor side suction port and the outdoor side suction port, and arbitrarily communicates or closes the indoor side discharge port and the outdoor side discharge port, An opening and a damper for opening and closing the opening are provided in the partition walls of the exhaust ventilation path and the supply air ventilation path, so that the outdoor side suction port and the outdoor side discharge port communicate with each other, and at the same time, the outdoor side suction port and the outside air are connected to each other. Claim 1 or 2, characterized in that a gloss is provided to block the outdoor air outlet from the outside air.
Air conditioning ventilation fan as described in section. (4) The air conditioning ventilation fan according to claim 1, wherein the heat transfer plate of the heat exchange element has moisture permeability. (6) The air conditioning ventilation fan according to claim 1, wherein the heat transfer plate of the heat exchange element has no hygroscopicity and is moisture impermeable.