JPH0341224Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a range hood fan having a structure that allows easy removal of grease.

<Prior Art> There is a deep type range hood fan, which is a special ventilation fan for kitchens installed on the top of a system kitchen, as shown in the figure.

Fig. 3 shows a conventional example, in which a ventilation fan casing 3' is installed in an air passage leading from an exhaust gas suction port 6' formed on the lower surface of the range hood fan body 1' to an exhaust duct 2' formed above the exhaust gas suction port 6'. Install the
A motor 5' with a Shirotsko fan 4' fixed to the shaft end is installed in the casing 3' with the shaft direction horizontal,
Furthermore, a grease filter 7' is installed horizontally inside the suction port 6'.

Further, in the example shown in FIG. 4, an exhaust duct 2' is formed directly above the suction port 6' formed below the hood fan body 1' in the same manner as described above, and a casing 3' is placed inside the duct 2'. A motor 5' with a Shirotsuko fan 4' fixed in the casing 3' is installed with its axis vertically, and the grease is sucked in through a grease filter 7' which is horizontally installed and held inside the suction port 6'. Exhaust gas is discharged to the outside through a duct 2'.

Furthermore, the example shown in FIG.
A casing 3' for mounting a fan is provided in the air passage leading from the suction port 6' formed in the lower part to the exhaust duct 2' connected to the upper part of the motor 5. ' is mounted horizontally in the axial direction, and a grease filter 7' is installed at a slightly inclined position in front of the fan 4', so that the exhaust gas flows from the suction port 6' to the duct 2' by the filter 7'. The oil content inside is collected by adhesion.

In this way, in the conventional example as well, in order to improve cleaning performance and fire prevention performance, a grease filter is provided in a detachable manner to remove oil from oil smoke.

<Problems to be solved by the invention> However, in the conventional example shown in Figs. 3 and 4 above, the grease filter is arranged horizontally, so as the amount of grease collected increases, grease is spread over a wide area. There is an inconvenience that stagnant dripping occurs and naturally falls onto the stove, such as a system kitchen installed at the bottom, which hinders cooking and, if ignited, may cause a fire.

Further, the grease filters shown in FIGS. 3 to 5 cannot be expected to have a sufficient collection effect, and a considerable amount of grease remains in the internal equipment's Shirotsuko fan and the bottom of the casing.

Furthermore, it has been difficult to completely remove or clean the grease that has accumulated at the bottom of the casing due to the complicated structure of the casing.

Therefore, the present invention addresses the above-mentioned drawbacks and provides a range hood fan that collects the grease that accumulates in the grease filter and drips without leaking, prevents it from interfering with cooking, and is highly fire safe and easy to install. It is something to do.

<Means for solving the problem> An exhaust fan is installed in front of the range hood fan body together with a motor in the air passage leading from the suction opening formed on the bottom surface of the range hood fan body 1 to the exhaust duct installed directly above it. A grease filter is installed on the suction side of the fan at an angle along the fan, and a grease collecting pot is installed just below the lower edge of the grease filter, and the lower edge of the fan casing and The pot is connected to the pot.

<Function> Exhaust gas taken in from the suction port by rotating the fan passes through the grease filter, passes through the fan, and is exhausted to the outside from the exhaust duct. In the process, the oil and smoke contained in the exhaust gas passes through the grease filter. Grease that comes into contact with the filter and is removed when passing through the filter is collected in the receiving gutter at the lower edge of the filter, and grease that has adhered to the fan other than the filter and the casing is collected on the bottom surface of the casing. It is then collected along the slope into a collection pot and removed.

<Examples> The range hood fan of the present invention will be described in detail below with reference to examples shown in the accompanying drawings.

Figure 1 is a simplified sectional view of the range hood fan of the present invention, and Figure 2 is a simplified sectional view of the main parts showing the installation state of the grease spot of the present invention, where 1 is a hollow box-shaped range hood fan body, and 2 is a range hood fan body. 1 is a duct provided at the top, 3 is a fan casing, 4 is a
6 is a suction port provided at the bottom of the range hood fan body 1, and the support side of the motor 5 is exposed outside the casing 3.
Also, the casing 3 to which this motor 5 is attached
The front surface thereof is inclined at approximately 30 degrees with respect to the vertical wall surface of the range hood fan body 1, and is disposed above the suction port 6. In other words, the motor 5 is located at the corner between the top plate 8 and the rear wall 9 inside the range hood fan body 1.
The casing 3 and the motor 5 are installed at an angle so that the exposed rear part of the motor 5 is located. Further, the duct 2 attached to the top plate part 8 of the range hood fan main body 1 is located near the front of the top plate part 8 due to the inclination of the casing 3, and communicates with the air outlet 10 of the casing 3. It consists of

A grease filter 7 is installed at an angle similar to the casing 3 and the motor 5, and is installed parallel to the front surface of the suction port 11 of the casing 3.

Therefore, the exhaust gas is urged into the casing 3 from the suction port 6, grease filter 7, and suction port 11, and further to the Shirotsuko fan 4, the blowout port 10, and the duct 2.

Reference numeral 12 denotes a receiving gutter that supports the lower edge of the grease filter 7 and collects the grease that has been caught and fallen by the filter, and the receiving gutter 12 is inclined downward from one end to the other end. Reference numeral 13 denotes a connecting pipe provided at the lower end of the slope of the receiving trough 12 and at the front edge corner of the bottom surface of the casing 3. Reference numeral 14 denotes a grease spot provided at the bottom of this connecting pipe 13, which removes the grease adhering to the inside of the casing 3 and the receiving gutter 1.
The grease collected in the container 2 is collected by natural flow.

Incidentally, this grease spot 14 can be removed by rotating, and the grease stored inside can be removed.

<Effects of the invention> As described above, the present invention has the casing and Sirotskov fan tilted downward at an angle of about 30 degrees, so that the flow direction of exhaust gas is extremely curved compared to conventional casings and Sirotskov fans that are installed vertically. The casing has a nearly streamlined shape, which improves suction efficiency, and the casing is slanted, which improves grease collection efficiency.

In addition, if you tried to install the grease filter vertically with the conventional structure, you would have to reduce the dimensions of the Sirotskov fan and motor, but with this invention, the motor is installed in a dead space at the upper corner of the range hood body. Since it takes up space relatively easily, it is possible to use a motor with a relatively larger capacity than previous models.

Furthermore, since the casing is installed at an angle, the position of the air outlet 10 of the casing is sufficiently far away from the mounting wall surface of the casing.
Construction work when connecting ducts becomes easier, and taping of duct connections becomes easier.

In addition, the accumulated grease can be removed simply by taking out the grease spot, making the grease cleaning work considerably easier.

[Brief explanation of the drawing]

Fig. 1 is a simplified sectional view showing the range hood fan of the present invention, Fig. 2 is an enlarged sectional view of the main parts showing the same grease spot installed, and Figs. 3 to 5 are:
It is a simplified sectional view showing a range hood fan of a different conventional example. 1... Range hood fan body, 2... Duct, 3... Casing, 4... Sirotskov fan,
5...Motor, 6...Suction port, 7...Grease filter, 12...Gutter, 13...Connection pipe,
14... Grease spot.

Claims (1)

[Scope of utility model registration request] The fan casing of the exhaust fan is placed in the air passage from the suction opening formed on the bottom of the range hood fan body to the exhaust duct installed directly above it, and the fan casing of the exhaust fan is placed between the top plate and rear wall of the range hood fan body along with the motor. A grease filter is installed on the suction side of the fan tilting forward along the fan, a grease collecting pot is installed below the lower edge of the grease filter, and a grease filter is installed on the suction side of the fan. A range hood fan characterized in that the lower edge of the casing and the pot are communicated through a connecting pipe.