JPS6110110Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a simultaneous intake/exhaust type ventilation system that performs ventilation while exchanging heat between indoor polluted air and fresh outside air.

When heating and cooling a room, it is important to exhaust polluted indoor air and bring fresh outside air into the room, in other words, to perform ventilation in order to maintain a comfortable atmosphere. In order to carry out this ventilation without significantly changing the air conditioning atmosphere in the room, ventilators with built-in heat exchangers have been developed. However, in conventional ventilation systems of this type, exhaust air and air supply are distributed equally, so the temperature and humidity inside the room fluctuate considerably depending on the ventilation operation, and the air conditioning and heating atmosphere is affected by ventilation. There is a problem in which it is easy to damage.

The present invention aims to solve the above-mentioned conventional problems and provides a small-sized ventilation device that can ventilate a room without impairing the cooling/heating atmosphere as much as possible.

Next, the configuration of the present invention will be specifically explained based on an embodiment shown in the drawings.

The ventilation device as an application example of the present invention shown in the drawing is a small device that is fitted into a mounting hole drilled in a side wall structure W that partitions the inside and outside of a room.
The main components are incorporated in. The outer box 1 is formed with an exhaust path for exhausting air and an air supply path for supplying air, which are separated by a partition wall 2 or the like. The exhaust path is a route for exhausting indoor air to the outdoors, and is a path that connects the air inlet 3, which has an almost wide opening at the center of the indoor side (left side in Figure 1) of the outer box 1, to the outdoor side (the left side in Fig. 1) of the outer box 1. It is a series of key-shaped passages leading to an exhaust port 4 that opens at the top (on the right side in FIG. 1). The air supply path is a path for taking outside air into the room, and is a series of keys leading from the air intake port 5 opened at the center of the outdoor side of the outer box 1 to the air supply port 6 opened at the upper part of the indoor side of the outer box 1. It is a curved passageway.
A motor 8 is attached to a central portion of the outer box 1 closer to the outdoors, with a rotating shaft 7 substantially aligned with the center of the outer box 1 and protruding from both sides. Each protruding end of the rotating shaft 7 of this motor 8 has an impeller 9,
10 is a casing 11 forming part of an exhaust path
It is mounted so as to rotate inside the casing 12 and inside the casing 12, which constitutes a part of the air supply path. In other words, the exhaust path has a path from the intake port 3 to the exhaust port 4.
There is an exhaust blower mainly composed of a motor 8, an impeller 9, and a casing 11, which forms an air flow from the air intake port 5 to the air intake port 6. An air supply blower having an impeller 10 and a casing 12 as main bodies is provided. The suction port of the air supply blower faces the air intake port 5 that opens on the outdoor side of the outer box 1, and the suction port of the exhaust air blower faces the air intake port 5 that opens on the outdoor side of the outer box 1. It faces a position corresponding to the suction port 3. A rectangular parallelepiped heat exchanger 13 is installed at the intersection of the air supply path and the exhaust path, thereby separating the air supply path and the exhaust path over their entire lengths. Heat exchanger 13
The passage along the long side is connected to the air supply passage, and the passage along the short side is connected to the exhaust passage. and,
Air chambers S are formed on both sides of the exhaust passage facing the entrance and exit side of the heat exchanger 13, respectively. The two air chambers S on the outlet side are spaces surrounded by the heat exchanger 13, the casing 11 of the exhaust blower, and the support member 14 that supports the heat exchanger 13, and the one on the inlet side is a space surrounded by the outer box. This is a space surrounded by the heat exchanger 13 and a heat exchanger support part 16 formed in a decorative cover 15 attached to the indoor side of the room. Openings corresponding to the suction port 3 and the air supply port 6 of the outer box 1 are formed in the decorative cover 15 so as to be vertically adjacent to each other. However, when the heat exchanger 13 is assembled, the suction port 3 overlaps with the inlet side of the passage of the heat exchanger 13.
Therefore, each opening of the decorative cover 15 actually functions as a suction port or an air supply port.

The exhaust flow rate in this ventilation system is larger than the supply air flow rate. That is, the air chamber S is provided in the exhaust passage, and the opening area of the suction port 3 thereof is configured to be larger than that of the suction port 5 of the air supply passage. Furthermore, since the heat exchanger 13 itself is configured three-dimensionally with a difference between the passage for the exhaust passage and the passage for the supply air passage, the exhaust flow rate is made larger than the supply air flow rate, thereby preventing excessive introduction of outside air into the room. It is possible to prevent the deterioration of the heating and cooling atmosphere, and to perform heat exchange and humidity exchange between the exhaust flow and the supply air flow based on the initiative of the exhaust flow,
Fluctuations in indoor temperature and humidity caused by ventilation can be suppressed as much as possible.

As is clear from the above description of the embodiments, the ventilation system of the present invention has an inlet opening facing the indoor side and an exhaust opening facing the outdoor side, and an exhaust flow that forms an exhaust flow from the inlet to the exhaust outlet. A series of exhaust passages each having an air blower and an air intake opening facing the outdoor side, and an air supply opening opening facing the indoor side, each equipped with an air supply blower that forms a supply air flow from the suction opening to the air supply opening. an air supply path, and a heat exchanger assembled at the intersection of the exhaust path and the air supply path closer to the indoor side, and an inlet portion of the exhaust path to the heat exchanger and an exhaust air blower. Since an air chamber is formed at the inlet and the airflow in the exhaust path is larger than that in the supply airway, there is no need for a complicated configuration that would create a difference in the capacity of the blower. It is possible to realize exhaust-driven air conditioning ventilation. That is, it is possible to exchange heat with the outside air introduced into the room by a sufficient amount of exhaust gas, and it is possible to perform ventilation in which fluctuations in the indoor state quantities are suppressed as much as possible.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal cross-sectional view showing a ventilator as an application example of the present invention in an installed state, and FIG. 2 is an enlarged front view thereof. Note that the same reference numerals in the figures indicate the same or equivalent parts. 1...Outer box, 3...Suction port (exhaust path), 4...
...Exhaust port, 5...Suction port (of the air supply path), 6...Air supply port, 8...Motor, 9, 10...Impeller, 1
1, 12...Casing (of the blower), 13...
Heat exchanger, S...Air chamber.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A series of exhausts with an inlet opening facing the indoor side and an outlet opening facing the outdoor side, each equipped with an exhaust blower that forms an exhaust flow from the inlet to the outlet. A series of air supply passages each having an air supply passage with an air intake opening facing the outdoor side and an air supply opening facing the indoor side, and a supply air blower that forms a supply air flow from the intake opening to the air intake opening, and the exhaust air supply passage. and a heat exchanger assembled at the intersection of the air supply path and the air supply path toward the indoor side, and air chambers are formed at the inlet portion of the exhaust path to the heat exchanger and the inlet portion of the exhaust blower. A ventilation system characterized in that the amount of ventilation in the exhaust path is larger than the amount of ventilation in the air supply path. (2) The ventilation according to claim 1 of the utility model registration claim, in which the heat exchanger is a rectangular parallelepiped, and the passage along the long side is connected to the air supply passage, and the passage along the short side is connected to the exhaust passage. Device.