JPS58164941A - Ventilating fan for air-conditioning - Google Patents

Abstract

PURPOSE:To improve the effect of air-conditioning by a method wherein heat is exchanged and air is ventilated through a heat exchanging element in the ventilation of air-conditioning, heat is not exchanged, air is forcedly supplied and discharged simultaneously and the quantity of ventilation air is increased at the time while not air-conditioned, and the fan is used as a circulator for equalizing indoor temperature at the time of air-conditioning. CONSTITUTION:In case of air-conditioning, indoor air, a temperature and humidity thereof are lower than the outside air flowing along an exhaust ventilation flue A A' deprives sensible heat from the outside air flowing along an air-supply ventilation flue B B' through the heat transfer plates of the heat exchanging element 8, moisture is permeated, and indoor air is changed into the state of a high temperature and high humidity and discharged to outdoors. On the other hand, the outside air is changed into the state of a low temperature and low humidity, and supplied into a room. Indoor air and the outside air also function similarly in case of heating. When a motor 17 is operated under the state in which the damper of an opening section formed to partition plates 11a, 11b is opened, indoor air and the outside air can be supplied and discharged forcedly and simultaneously without passing through the heat exchanging element 8. An outdoor side suction port 2 and an outdoor side discharge port 3 are closed, an opening for circulation is opened, the exhaust ventilation flue A A' and the air-supply ventilation flue B B' are communicated to each other, and the effect of heating can be improved as the circulator.

Description

[Detailed Description of the Invention] The present invention relates to an air conditioning ventilation fan, and its purpose is to:
Ventilation during heating and cooling is performed through heat exchange elements, and during periods when heating and cooling are not performed, forced simultaneous supply and exhaust is performed without heat exchange to increase the amount of ventilation air, and during heating and cooling, the room temperature is uniform. To provide an air conditioning ventilation fan that can be used as a circulator to improve cooling and heating effects.

3A- Conventionally, as shown in FIG. 1, in an air conditioning 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 102 and air supply vanes 103 are driven by a motor 104. It rotates and exchanges heat with the heat exchange element 101, and performs its function during cooling and heating, but in the intermediate seasons of spring and autumn, even though heat exchange is not necessary, exhaust air and supply air are passed through the heat exchange element 101. Because the air passes through the air, the air volume of the blower originally installed inside the air conditioning ventilation fan could not be used effectively. In addition, when 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 impossible to install an air conditioner, an air conditioning ventilation fan, and a circulator in the same room due to cost and space considerations. was there.

The present invention eliminates such conventional drawbacks, and an embodiment thereof will be described below with reference to FIG. 2)10. ,,II (1: In Figs. 2 to 4, 1 is a main body having an outdoor side suction port 2, an outdoor side discharge port 3, and a partition plate 4, and 5 is a louver having an indoor side suction port 6 and an indoor side discharge lower. 11a, which is fitted into the main body 1. 8 is a heat exchange element in which heat exchanger plates 9 and spacer plates 10 having moisture permeability and heat conductivity are alternately laminated. 11a.

11b and 11c are partition plates formed on the main body 1, and 12 is a partition plate formed on the louver 5, the ends of which are in contact with the ridge of the heat exchange element 8. 13 is an exhaust vane, 14 is an exhaust casing, 16 is an air supply vane, 16 is an air supply casing, and 17 is a motor for rotating the exhaust vane 13 and the air supply vane 15.

In the above configuration, A −+ A′ indicates an exhaust ventilation path, and the indoor air flows from the indoor suction port 6 of the louver 5 to the heat exchange element 8.
After passing through the exhaust casing 14, the air is discharged outdoors from the outdoor outlet 3 of the main body 1 by the exhaust vanes 13 rotated by the motor 17.

In addition, B − + B' indicates a supply air passage, in which outside air is sucked into the outdoor side of the main body 1, passes through the supply casing 16, and reaches the supply air vane 15 rotated by the motor 7''. Enters the heat exchange element 8 and enters the indoor side of the louver 5
゛Air is supplied into the room from the discharge lower.

In this way, the indoor air flows along the exhaust ventilation path A-+A'5,
,−,,.

The outside air flows along the supply air passage B-+B', and sensible heat and latent heat (moisture) are exchanged by the heat exchange element 8, which 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 ventilation path A' and is transferred to the supply air ventilation path B via the heat transfer plate 9 of the heat exchange element 8. −+
Sensible heat is removed from the outside air supplied into the room along line B', and moisture still permeates through the heat exchanger plate 9, becoming high temperature and high humidity and being exhausted outside.

On the other hand, the outside air, which is hotter and more humid than the indoor air, enters the heat exchange element 8 along the supply air passage B→B'
Sensible heat and moisture are imparted to the indoor air exhausted outdoors along the exhaust ventilation path A→A' through the heat transfer plate 9, and the air is supplied indoors at a low temperature and low humidity.

Note that the same effect also occurs during heating.

5 and 6 show other embodiments, and the same numbers indicate the same elements as in the first embodiment. In the figure, 18 is an opening provided in the partition plate 11a for communicating the indoor side suction port 6 and the outdoor side suction port 2, and 19 is an opening provided between the indoor side discharge lower and the outdoor side discharge port 3.
20 is a damper for opening and closing the opening 18 as desired, and 21 is a damper for opening and closing the opening 19 as desired.

In the above configuration, if the motor 17 is operated with the damper open as shown in FIGS. 5 and 6, indoor air is sucked in from the indoor discharge lower of the louver 6 1, and the arrow X - + X
' The air is exhausted from the exhaust casing 14 to the outside through the outdoor discharge port 3 by the exhaust vanes 13 through the opening 19 as shown in FIG. On the other hand, outside air passes from the outdoor suction port 2 to the air supply casing 16 as shown by the arrow Y→Y', and then passes through the air supply vane 1.
5, air is supplied into the room from the indoor side suction port 6 of the louver 6 through the opening 18.

Therefore, indoor air and outdoor air can be forced to be simultaneously supplied and ventilated without passing through the heat exchange element 8, which is a considerable resistance in the exhaust ventilation path A→A' and the supply air ventilation path B-+B'. During the cooling season, the original air volume of the blower can be effectively used, and especially before and after the cooling season, cooling with outside air is also possible.

Figures 7 to 10 show other embodiments, and the same numbers indicate the same items as the first and second embodiments on page 7.
Reference numeral 22 denotes a circulation opening provided in the partition plate 4, which communicates the exhaust ventilation path A→A' with the supply air ventilation path B-+B'.

A shutter 23 is formed by an external shutter 26 fixed parallel to the shutter rotation axis 24 and an internal shutter 26 fixed perpendicular to the shutter rotation axis 24, and which opens and closes around the shutter rotation axis 24. It is.

As shown in Figs. 7 and 8, when the shutter 23 is opened, the external shutter 26 opens the outdoor suction port 2 and the outdoor discharge port 3.
is opened to the outside air, and the circulation opening 22 is closed by the internal shutter 26. When the shutter 23 is closed as shown in Figs. 9 and 10, the outdoor air inlet 2 and the outdoor air outlet 3 are closed by the external shutter 25 and are isolated from the outside air, and the circulation opening '22 is opened by the internal air filter 26. be done.

In the above configuration, Sha...! When X=-2 is closed, the outdoor side suction port 2 and the outdoor side discharge port 3 are closed, the circulation opening 22 is opened, and the exhaust ventilation path person → person' and the supply air ventilation path B-+B' are communicated. As shown by arrow 2→Z', indoor air is sucked in from the indoor discharge lower, passes through the opening 19, is sent from the exhaust casing 14 to the exhaust vane 13, and is then sent to the circulation opening 22. The air is discharged from the air supply casing 16 into the room from the indoor suction port 6 via the opening 18 by the air supply vane 15. Therefore, it has the function of a circulator, and for example, during heating, warm air accumulated near the ceiling can be blown downward, eliminating discomfort caused by uneven temperature distribution and improving the heating effect. can.

In the first embodiment of the present invention, if the heat exchanger plate 9 of the heat exchange element 8 is made of a moisture-impermeable and non-hygroscopic material, only sensible heat can be exchanged via the heat exchanger plate 9. , no water exchange takes place. For example, it is necessary to keep the bathroom warm by discharging moisture like a bathroom, protecting the bathroom from moisture damage, and recovering the sensible heat that is discharged outside by exhaust air. It is extremely effective in some cases.

As described above, according to the present invention, the heat exchanger plate of the heat exchange element has moisture permeability,
If the material is made of a heat conductive material, sensible heat and moisture can be exchanged through the heat transfer plate, and
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.
The ventilation air volume is increased, and the shutter can also be used as a circulator for heating and cooling.If the heat exchanger plate of the heat exchange element is made of a moisture-impermeable and non-hygroscopic material, it can be used in high-humidity areas such as bathrooms. , it has become possible to provide an air conditioning ventilation fan with many excellent functions, and its effects are extremely significant.

[Brief explanation of drawings]

FIG. 1 is a side sectional view of a conventional air conditioning ventilation fan, FIG. 2 is a plan sectional view of the first embodiment of the present invention, FIG. 3 is a side sectional view of the same, and FIG.
5 is a plan sectional view of the second embodiment of the present invention, FIG. 6 is a sectional view of the same side, and FIG. 7 is a shutter open state of the third embodiment of the present invention. 8 is a sectional view of the same side, FIG. 9 is a sectional plan view of the same when the shutter is closed, and FIG. 10 is a sectional view of the same side. 1...Main body, 2...Outdoor suction port, 3
...Outdoor 10, -7, discharge control port, 4...Partition plate, 5...Louver, 6, old...Indoor suction port, 7... ... Indoor side discharge port, 8 ... Heat exchange element, 9 ... Heat exchanger plate, 1o, river ... Spacing plate, 11 ... Division plate, 1
2... Division plate, 13... Exhaust vane,
14...Exhaust casing, 15...River/air supply vane, 16...Air supply casing, 17.Old...Motor, 18...Opening. 19. Old opening, 20. River damper, 21. Damper, 22. River circulation opening, 23.. Shutter, 24.. Shutter. Rotating shaft, 26...
...External shutter, 26...Internal shutter. Name of agent: Patent attorney Toshio Nakao (1st person)
Figure 2 Figure 3 Figure 4 Figure 5 Figure 6

Claims (5)

[Claims] (1) A main body including an exhaust ventilation passage that communicates between the indoor side suction port and the outdoor side discharge port, an air supply ventilation path that communicates the indoor side discharge port and the outdoor side suction port, and a partition wall that separates the internal ventilation path; , blades provided in the exhaust ventilation passage and the supply air ventilation passage, a motor for rotating them, and heat exchanger plates supported at predetermined intervals, and formed in the exhaust ventilation passage and the supply air ventilation passage. and a heat exchange element provided at the intersection of the main body, and the main body has an air intake opening that communicates the indoor side suction port and the outdoor side suction port, and an optional heat exchange element that connects the indoor side discharge port and the outdoor side discharge port. An air conditioning ventilation fan having a partition plate for an exhaust ventilation passage and a supply air passage each having an exhaust opening that communicates with the other, and a damper that opens and closes both openings. (2) The main body has a shutter that connects the outdoor side suction port and the outdoor side discharge port and at the same time blocks off the outdoor side suction port from the outside air and the outdoor side discharge port from the outside air. An air conditioning ventilation fan according to claim 1. (3) The air conditioning ventilation fan according to claim 1, wherein the heat transfer plate of the heat exchange element has moisture permeability. (4) 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. (5) The air conditioning ventilation fan according to claim 1, wherein the heat transfer plate has a structure in which a layer having hygroscopic properties is provided on the surface thereof.