JPS6234187Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to the improvement of simultaneous intake and exhaust type range hoods installed in kitchens, etc. By making the air outlet on the indoor side open appropriately on the front and top surfaces of the casing, To provide a range hood that does not limit the installation location of the range hood, facilitates installation work, and improves ventilation efficiency.

An embodiment of this invention will be described below with reference to FIGS. 1 to 4. In the figures, 1 is a casing, and an indoor air suction port 2 is provided on the bottom surface of the casing.
An outdoor side air outlet 3 and an outdoor air suction port 4 are provided on the back surface, and indoor side air outlets 5, 5 are provided on the top and front surfaces, respectively, and are openable as appropriate. 6 is a partition wall provided inside the casing 1;
An indoor suction chamber 7, an outdoor discharge chamber 8, an outdoor suction chamber 9, and an indoor discharge chamber 10 are formed between the two. A is a blower having a motor 11 on both shafts attached to a partition wall 6. One of the shafts has an intake port 12 in the indoor suction chamber 7, and a discharge port 13 in one side of the outdoor discharge chamber 8. An exhaust vane 15 covered with an open exhaust vane casing 14 is provided, and has an intake port 12 in the outdoor suction chamber 9 on the other side, and a discharge port 1 on one side of the indoor discharge chamber 10.
An intake vane 17 covered with an intake-side vane casing 16 opening 3 is formed.
18 is a filter provided to block the air intake port on the indoor side; 19 is a switch provided at the lower front of the casing 1; 20 is an exhaust side shutter frame provided outside the air outlet 3 on the outdoor side; A backflow prevention shutter 21 that opens and closes according to wind pressure is provided. Reference numeral 22 denotes an intake side shutter frame provided outside the air intake port 4 on the outdoor side, and is provided with a backflow prevention shutter 21 that opens and closes according to wind pressure. 2
3 is a wall, and 24 is an opening provided in this wall, which is provided corresponding to the air outlet 3 on the outdoor side and the air suction port 4 on the outdoor side.

In the range hood configured as described above, when the switch 19 is turned ON, the motor 11 is driven, the blades 15 and 17 are rotated, and the filter 18 is rotated.
Indoor air is sucked into the indoor suction chamber 7 from the indoor air suction port 2 through the outdoor air outlet 2, and is discharged (exhausted) outdoors from the outdoor air outlet 3 via the outdoor air discharge chamber 8. Air intake port 4
from the indoor side suction chamber 9, and the indoor side discharge chamber 1.
0, the air is discharged (inhaled) into the room from the air outlet 5 on the indoor side, and intake and exhaust are performed at the same time. Therefore, as shown in FIGS. 3 and 5, the air outlet 5 on the indoor side provided on the top surface of the casing 1 is opened, and a pipe 27 is connected to this via a pipe connection frame 25 so as to be located behind the ceiling 26. By installing and supplying outdoor air into the room from the decorative grille 29 provided at the end of the ceiling 26 that is far from the part corresponding to the range 28, the exhaust from the range 28 flows into the air outlet 5 on the indoor side. unaffected by the intake air flow from
Allows for effective ventilation from a wide area of the room. On the other hand, if there is no attic as shown above, Figure 4,
As shown in FIG. 6, only the air outlet 5 provided on the front surface of the casing 1 is opened, a wind direction plate 30 is provided on the air outlet 5, and the air is discharged along the ceiling surface. The ventilation effect is high because the outside air is not exhausted immediately (short circuit).

In the above-mentioned embodiment, a wind direction plate 30 is provided at the discharge port 5 in the case shown in FIG. It is effective.

As explained above, this idea includes providing an indoor discharge chamber on the blower discharge side of the intake passage, and providing discharge ports that can be opened as appropriate on the top and front surfaces of the casing, corresponding to the upper and front sides of this discharge chamber. As a result, the direction of the indoor discharge port can be selected above or in front of the casing depending on the installation location, making construction easier. Since air can be supplied at the same time as exhaust, there is no need to worry about oxygen deficiency.

In addition, the air outlet provided on the top surface of the casing is configured to allow connection of a pipe that guides air, so by connecting the pipe, outdoor air can be supplied from a wider area of the room for efficient ventilation. I can do it.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing an embodiment of this invention, Fig. 2 is a sectional view taken along - in Fig. 1, Fig. 3 is a sectional view taken along - in Fig. 1, and Fig. 4 is a sectional view taken along - in Fig. 1. Fig. 5 is a sectional view taken along - in Fig. 1; Fig. 5 is a sectional view showing an example of the use of the range hood of this invention;
The figure is a sectional view showing another example of use. In addition, the same reference numerals in each figure indicate the same parts, 1 is the casing, 2 is the air inlet on the indoor side, 3 is the air outlet on the outdoor side, 4 is the air inlet on the outdoor side, and 5 is the air on the indoor side. A discharge port, 27 is a pipe, and A is a blower.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) An exhaust passage having an indoor air intake port and an outdoor air discharge port, and an intake passage having an outdoor air intake port and an indoor air discharge port are provided. and a coaxial exhaust and intake blower provided in the exhaust passage and the intake passage, and an indoor discharge chamber is provided in the casing on the intake blower discharge side of the intake passage. , a discharge port formed to be openable for use as an air discharge port on the indoor side is provided on the front surface and top surface of the casing corresponding to the front and upper side of the discharge chamber, and the air discharge port provided on the top surface of the casing is A range hood that has a structure that allows connection of a pipe that guides air in an open state. (2) The range hood according to claim 1 of the utility model registration, characterized in that a wind direction plate is provided at the air discharge port on the indoor side provided on the front surface of the casing.