JPS5930816Y2 - ventilation system - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an improvement of a ventilation system for a kitchen that discharges heat, oil, smoke, odor, etc. generated by a cooking device such as a gas range in the kitchen.

A conventional ventilation system was constructed as shown in FIG.

In the figure, 1 is the outer casing of the main body, 2 is an air intake port formed on the bottom surface of the main body to suck in the heat generated by a microwave oven, etc., 3 is an exhaust blower, and 4
5 is an exhaust air outlet, 5 is an intake blower, 6 is an outdoor air inlet, 7 is an outlet that blows out the intake air from this intake air blower into the room, and 8 is a partition wall that exhausts air from the inlet 2. An exhaust flow path 10 leading to the outlet 4 and an intake flow path 11 leading from the outdoor air intake port 6 to the blowout lower are partitioned off within the outer casing.

With the above structure, exhaust heat from the range, oil, steam, etc. generated indoors are sucked in through the intake air D2 on the indoor side, and are discharged to the outside through the exhaust port 4 by the exhaust blower 3.

Also, at this time, the intake blower 5 sucks fresh outside air into the room to supplement the exhausted indoor air.

At this time, the exhaust flow may leak outward from the suction port on the bottom surface of the outer casing, but to eliminate these leaks,
Leakage of the exhaust flow could not be prevented unless the lower suction port 2 was made larger or the exhaust capacity of the blower was increased.

For this reason, the ventilation system has to be large-sized, which increases the price, and when the exhaust volume is increased as described later, the room temperature drops significantly in winter and the noise level increases.

This invention was devised in view of the disadvantages mentioned in -4-, and one embodiment of this invention will be described below with reference to the drawings.

In Figures 2 and 3, the same reference numerals as in Figure 1 indicate the same or equivalent parts, and 12 is a wind direction grill provided at the indoor air outlet, and the lowest part of this grill is where the indoor air intake flow is directed along the panel. A guide plate 13 is provided so that the flow flows downward.

With this configuration, either the exhaust air tends to leak towards the front panel side as shown by the arrows x and 3, it is discharged outside.

Note that 9 in the figure indicates a gas stove.

FIG. 4 shows a different embodiment of this invention, in which the lowermost guide plate 13, which is configured to allow the intake air to flow downward along the front panel, is formed to protrude from the outlet grille into the intake passage. This allows more airflow to flow over the front panel surface.

The same effect as above can also be obtained by this.

FIG. 5 shows a further different shape of the guide plate 13, in which the length of the guide plate protruding into the intake flow path is screwed so that it can be adjusted within the intake flow, thereby reducing the intake air flowing to the front panel. The amount of flow is adjusted to prevent oil vapor from leaking during cooking.

If the guide plate is made adjustable in this way, more effective leakage prevention can be achieved.

As described above, this device allows some of the air for intake to flow down along the peripheral wall of the outer casing of the main body, and prevents the exhaust air from leaking from the lower suction port, allowing efficient ventilation. Since the intake air flows down the front panel surface as a gliding flow, this ventilation system has a self-cleaning effect that prevents oil etc. from adhering to the outer surface of the front panel, and also allows for miniaturization of the device. Can be provided.

In addition, although the above explanation was about a ventilation device installed above the stove in the kitchen, various applications are possible as a ventilation device for local ventilation.

[Brief explanation of drawings]

Figure 1 is a vertical cross-sectional view of a conventional ventilation system, Figure 2 is a structural diagram of an indoor ventilation system according to an embodiment of this invention, Figure 3 is a vertical cross-sectional view of the center of Figure 2, and Figure 4 is a vertical cross-sectional view of a conventional ventilation system. 5 is an enlarged sectional view of a main part showing a different embodiment of this invention, and FIG. 5 is an enlarged sectional view of a main part showing a further different embodiment of this invention. In addition, the same reference numerals in the figures indicate the same or equivalent parts, 1 is the outer casing, 2 is the suction port, 3 is the exhaust blower, 4 is the discharge port, 5
1 is an intake blower, 7 is an air outlet, 8 is a partition wall, 9 is a gas stove, 10 is an exhaust passage, 11 is an intake passage, 12 is a grill, and 13 is a guide plate.

Claims (3)

[Scope of utility model registration request] (1) An outer casing of the main body that is provided with an indoor air outlet and an outdoor air inlet, an inlet that guides indoor air to the outlet provided on the lower surface of the outer casing, and intake from the outdoor air inlet. an air outlet provided on the front upper part of the outer casing body to blow out the air indoors; an exhaust passage leading from the indoor air exhaust inlet to the indoor air exhaust outlet; an intake passage leading from the intake port to the intake air flow outlet; a partition wall separating these two passages; a blower for forming an intake air flow in the intake passage; and a blower for forming an exhaust air flow in the exhaust passage; A simultaneous intake/exhaust type ventilation system, further comprising: an intake end outlet guide plate through which the intake air flow is blown out along the lowermost end of the front panel of the outlet on the front surface of the outer casing main body. (2) The ventilation device according to claim 1, wherein the intake air flow guide plate is formed to protrude from the air outlet toward the intake passage in the main body. (3) The ventilation device according to claim 1 of the above-mentioned utility model registration claim, wherein the length of the L-blowout guide plate protruding into the intake passage is adjustable.