JPS592415Y2 - Heat exchange simultaneous intake/exhaust type ventilation system - Google Patents

Description

[Detailed description of the invention] This invention relates to a type of ventilation system that simultaneously takes in outside air and exhausts indoor air. A heat exchanger for exchanging heat with the exhaust gas is provided, and this heat exchanger can be selectively used depending on the indoor and outdoor temperatures at that time.

In conventional ventilation systems with a heat exchanger of this type, heat exchange is performed between the suction outside air flow and the indoor exhaust air flow due to its configuration, and therefore the heat exchange action is controlled according to the indoor and outdoor temperatures at that time. There was a drawback that it could not be done.

This invention eliminates such inconvenience and allows the intake outside air or indoor exhaust air to be directly supplied indoors or outdoors without passing through heat exchange, as required.One embodiment of this invention will be described below.

That is, in the figure, 1 is a storage case that forms the outer shell of the device, 2 is a drive electric motor installed inside this storage case, 3 is a propeller blade attached to the indoor shaft end of this electric motor, and 4 is the opposite side. 5 is an orifice surrounding the propeller blade; 6 is a casing in which the sirocco blade is housed; 7 is an outside air intake port provided in the casing; 8 is an orifice surrounding the propeller blade; The provided rear cover is integrally attached to the casing 6 and attached to the outdoor opening end A of the storage case 1.

9 is a decorative cover attached to the indoor opening end B of the storage case 1; 10 is a heat exchanger built into the decorative cover 9; 11 is an outside air intake port provided in the rear cover 8;
Reference numeral 12 indicates an indoor air outlet provided on the rear cover 8, 13 indicates an indoor air intake provided in the center of the front wall of the decorative cover 9, and 14 indicates an intake provided on the peripheral wall of the decorative cover 9. An outside air outlet, 15, an outside air suction passageway leading from the outside air inlet 11 through the vicinity of the sirocco blade 4 and the heat exchanger 10 to the outlet 14, and 16, a heat exchanger from the indoor air inlet 13. vessel 10 and propeller blade 3
An indoor air exhaust passage that passes sequentially through the surrounding area and reaches the indoor air outlet 12; 17 is a heat exchange control window provided at the lower part of the front wall of the decorative cover 9; and C communicates with the indoor air through this control window. In the control passage, the heat exchanger 10 of the suction passage 15
It is connected to the front part.

Reference numeral 18 denotes a plate-shaped control body that is operable to open and close the control passage C in the vicinity of the heat exchange control window 17.

When the electric motor 2 in the storage case 1 is driven in the above configuration,
Outside air is sucked in by the sirocco blade 4 from the intake port 11 of the rear cover 8 through the front intake lower of the casing 6, passes through the outside air intake passage 15 indicated by the dotted arrow in the figure, and enters the decorative cover 9.
Air is supplied into the room through the heat exchanger 10 through the outlet 14.

On the other hand, indoor air enters from the center front suction port 13 of the decorative cover 9, passes through the interior heat exchanger 10, is sucked in by the propeller blades 3, passes through the indoor air exhaust passage 16 indicated by the solid arrow in the figure, and passes through the outer circumference of the casing 6. Pass through the air outlet 1 of the rear cover 8.
2 to the outside, and in this way each of the passages 16
．． Heat exchange is performed between the indoor air exhaust flow passing through 15 and the blown outside air flow via the heat exchanger 10.

The above is a normal case in which the heat exchanger 10 inside the decorative cover is operated, but if the indoor temperature happens to rise too much and you want to directly introduce outside air into the room, the control body 18 is changed from the state shown by the solid line in the figure, for example. It is only necessary to change the state to the state shown by the chain line, and in this state, the intake outside air that has entered the decorative cover 9 is supplied into the room through the control passage C through the control window 17 as shown by the chain line arrow in the figure. .

In the above embodiment, a case has been described in which sirocco blades are used for intake of outside air and propeller blades for exhausting indoor air, but the invention is not limited to this, and it goes without saying that these blades may be used in the opposite manner.

Further, in the above embodiment, a case has been shown in which the suction passage 15 communicates with the control passage C and communicates with the outside of the decorative cover 9 without passing through the suction port 13 and the air outlet 14, but in the above embodiment, the solid line arrow By reversing the flow of outdoor air and indoor air as shown by the dotted arrows, the suction passage 15 in the illustrated embodiment changes to a discharge passage, and the discharge passage 16
changes into a suction passage, so in this way, the discharge passage is configured to communicate with the outside from the control passage C through the heat exchange control window 17 of the decorative cover 9, but even in such a modification, the above-mentioned The same effects as in the illustrated embodiment can be obtained.

Since this device is constructed as described above, by opening and closing the control body provided on the indoor front decorative cover, the intake outside air or exhaust air can be passed through the heat exchanger, or it can be directly supplied indoors or outdoors without passing it through the heat exchanger. This makes it extremely easy to adjust indoor air conditions according to the occupants' preferences.

[Brief explanation of drawings]

The figure is a sectional view showing an embodiment of the ventilation device of this invention. In the figure, 1 is a storage box for the electric motor 2 for driving the blower blades, 9 is a front decorative cover provided at the opening end B on the indoor side, 1
0 is a heat exchanger built into this cover, 14 is its outlet communicating with the outside air suction passage 15, 16 is an indoor air discharge passage, 17 is a heat exchange control window opened in the decorative cover 9, 18
indicates a control body, and C indicates a control path.

Claims (1)

[Scope of utility model registration request] A storage case 1 is provided for the blower blade driving electric motor 2 for each of the passages in the form of an indoor air discharge passage 16 and an outside air intake passage 15.
An indoor front decorative cover 9 is provided which has an air outlet 14 that communicates with the suction port 13 of the exhaust passage 16 and the other outside air suction passage 15, and inside this cover, the indoor air exhaust flow passing through each of the passages and the suction A heat exchanger 10 is provided for exchanging heat with the outside air flow, and the exhaust passage 16 is provided inside the cover without passing through the suction port 13 and the blowout port 14.
Alternatively, a control passage C is provided that communicates the suction passage 15 with the outside through a heat exchange control window 17 provided in the cover, and this control passage is operated to open and close to control the indoor air exhaust flow or the suction outside air flow to the heat exchanger 10. An exhaust type ventilation device in front of a heat exchanger 10, characterized in that a control body 18 is provided.