JPH08170845A - Range hood - Google Patents

Abstract

PURPOSE: To prevent soot flowing into hood body from leaking into a room from the left and right lower ends of the hood body accurately. CONSTITUTION: Left and right trapping space parts 20 and 21 deep vertically with a large capacity are formed between left and right filters 6 and 17 which are arranged as opposed to left and right suction holes 7 and 8 of a fan casing 12 disposed at the central part horizontally inside a hood body 5 and left and right internal walls of the hood body 5. Thus, soot flowing into the hood body 5 at a suction port 3 can be trapped accurately by the left and right trapping space parts 20 and 21 even when being retained in hitting the left and right filter 16 and 17.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a range hood for discharging exhaust gas, oily smoke, odor and the like generated from a cooker to the outside of a room.

[0002]

2. Description of the Related Art In recent years, with the changes in eating habits and kitchens, various dishes can be enjoyed even at home, and the degree of use of the cooker is high, and exhaust gas, oil smoke, odor, etc. generated from the cooker can be efficiently used. There is an increasing demand for range hoods to be discharged.

Conventionally, various types of range hoods have been known, but, for example, one having a structure as shown in Japanese Utility Model Laid-Open No. 60-146243 has been provided. The configuration will be described below with reference to FIGS. 3 and 4.

[0004] As shown in the figure, a box-shaped hood body 10 is provided on a wall surface 101 of a house so as to cover the upper part of a cooker (not shown), and has a suction opening 102 with an open lower surface.
3 has a left intake hole 104 and a right intake hole 104A on the left and right sides at the center in the left-right direction.
Fan 108 including a fan casing 106 having a built-in fan and an electric motor 107 for driving both suction fans 105
Is provided.

The suction port 102 in the hood body 103
A filter 109 is disposed above the hood body 103 so as to incline upward from the vicinity of the lower end of the inner wall surface of the rear part of the hood main body 103. An oil smoke collecting space portion 110 is formed therebetween.

A duct 112 communicating with the outdoor 111 is connected to the discharge port of the fan casing 106.

In the above configuration, when the electric motor 107 is driven, the two suction fans 105 rotate, and the oil smoke generated from the cooker is sucked into the hood main body 103 from the suction port 102 and collides with the filter 109. Then, the oily smoke temporarily stays in the collection space 110, which is a space below the filter 109 in the hood body 103, and then passes through the filter 109. At that time, the oil and fat component is removed by the filter 109. Then, the oil smoke passes from the left intake hole 104 and the right intake hole 104A provided on both sides of the fan casing 106 to the fan casing 1.
06 is sucked into the inside, and is discharged to the outside 111 through the duct 112.

[0008]

In such a conventional range hood, the filter 109 forming the collection space 110 above the suction port 102 in the hood body 103 is
Since it is provided so as to cover the lower end of the blower 108 from below, the collection space 110 cannot have a sufficiently large volume. Although the volume can be increased by extending the lower end portion of the hood body 103 downward, the suction port 102 and the cooking device must be separated by a certain distance or more, so that the lower surface of the hood body 103 is It cannot be lowered. Moreover, since the filter 109 is arranged in parallel with the suction direction of the left and right intake holes 104, 104A, the force for sucking the oil smoke working on both left and right ends of the filter 109 at a distance from the left and right intake holes 104, 104A. Is weaker than other parts. For this reason, there is a problem that a part of the oil smoke leaks out from the left and right lower end portions of the hood body 103 toward the room 113 side.

The present invention solves the above-mentioned problems, and it is possible to reliably prevent oil smoke that has flowed into the inside of the hood body during cooking from leaking out from the lower left and right ends of the hood body to the inside of the range hood. The first purpose is to provide.

A second object is to improve the efficiency of collecting fats and oils of the filter.

[0011]

In order to achieve the above-mentioned first object, the range hood of the present invention has a first means provided on a wall surface of a house so as to cover an upper part of a cooker, and a suction means at a lower surface thereof. A box-shaped hood body having a mouth and a discharge port provided above, and a left air intake hole and a right air intake hole provided on the left and right side faces at the center of the hood body in the left-right direction. And a fan that is provided inside the fan casing and that sucks air from the left intake hole and the right intake hole and exhausts the air to the outside of the room, and an electric motor that drives the fan. And a left filter arranged to face the left intake hole and a right filter arranged to face the right intake hole, and outer surfaces of the left and right filters and an inner wall surface of the hood body. Between left and right The collection space, the space in the right and left between the inner surface of the left and right filter and the left and right suction hole,
The range hoods are formed respectively.

Further, in order to achieve the second object, the second
This means forms the left and right filters of the first means in an inclined shape.

In order to achieve the third object, the third
In the above means, the filters on the left and right of the second means are tilted in the opposite directions so that the upward gap becomes large.

[0014]

According to the present invention, by the constitution of the above-mentioned first means, the left and right collecting space portions having a large volume in the vertical direction are provided between the left and right filters and the left and right inner wall surfaces of the hood main body in the hood body. Since it is formed, even if the oil smoke that has flowed into the hood main body from the suction port stays when it collides with the left and right filters, it will be reliably collected in the left and right collection space portions.

[0015] Further, since the left and right filters are arranged obliquely by the configuration of the second means, the area of these filters can be secured more widely in the limited space in the hood body. Becomes

With the structure of the third means, the oily smoke generated from the cooker and rising rises against the left and right filters, and a part of the oily smoke flows to the left and right ends along the inclined surfaces of the left and right filters. Ascends and stays in the left and right collection spaces.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.

As shown in the drawing, the box-shaped hood body is provided on the wall surface 2 of the house so as to cover the cooker 1 from above, and has the suction port 3 on the lower surface and the discharge port 4 on the upper surface. A box-shaped upper surface has a vent hole 6 communicating with the discharge port 4 at the center of the inside in the left-right direction of the inside 5, and communicates with the suction port 3 through the air passage on the left and right side surfaces formed in the vertical direction. A fan casing 12 is provided which has a left intake hole 7 and a right intake hole 8 and which includes the vent hole 6 and is divided into two by a partition plate 9 to form a pair of fan chambers 10 and 11. In the fan chambers 10 and 11 of the fan casing 12, the left intake hole 7
And a fan 13, the suction side of which faces the right intake hole 8,
14 is provided, and the partition plate 9 has fans 13, 1
An electric motor 15 for driving the motor 4 is provided.

Further, a left filter 16 facing the left intake hole 7 and a right filter 17 facing the right intake hole 8 are provided inside the hood body 5. The left and right filters 16 and 17 are supported by a receiving portion 19 of a filter receiving portion 18 which projects from the lower portion of the fan casing 12 in the left and right directions so that the lower portions of the left and right filters 16 and 17 incline in mutually opposite directions so that the upward gap increases. The upper part is supported on the upper part of the inner wall surface of the hood body 5, and between the outer surface of the left and right filters 16 and 17 and the inner wall surface of the hood body 5, the inner part of the left side or the right side of the hood body 5 is The left collecting space 20 and the right collecting space 21 which become gradually deeper in the vertical direction toward the wall surface are provided between the inner surfaces of the left and right filters 16 and 17 and the left and right intake holes 7 and 8. Left and right space portions 26, 27 are formed.

The discharge port 4 of the hood body 5 has a chamber 24 connected to a duct 23 communicating with the outdoor 22.
Are connected in communication.

In the above structure, when the electric motor 15 is driven, the fans 13 and 14 rotate, and the oily smoke generated from the cooker 1 and rising rises from the suction port 3 into the inside of the hood body 5, and the left and right filters are filtered. Collisions 16 and 17. The oily smoke temporarily stays in the left and right collecting spaces 20, 21. Although the left and right collecting spaces 20, 21 are vertically shallow on the central side of the hood main body 5, Is deep in the vertical direction, and its volume can be set sufficiently large in the hood body 5, so
The hood body 5 is reliably collected in the left and right collection space portions 20 and 21 without leaking from the left and right lower end portions to the room 25 side. Then, the oily smoke passes through the left and right filters 16 and 17, but these left and right filters 16 and 17
And the left and right air holes 7, 8 between the left and right spaces 26, 27
The left and right filters 16 and 17 serve as ventilation resistance against the flow of oily smoke, so that the left and right collection space portions 20 and 2 on the upstream side are
Negative pressure is applied to 1 and acts as a so-called chamber to suck oil smoke from the entire surfaces of the left and right filters 16 and 17.

Moreover, the left and right filters 16 and 17 are
Since it is provided in an inclined shape and its area can be made wider in the limited space portion in the hood main body 5, the oil smoke is reduced by that amount while reducing the wind speed.
Pass 6 and 17 slowly.

Further, the left and right filters 16, 17 are
The suction port 3 is provided so as to incline in opposite directions from the lower center side in the left-right direction inside the hood body 5 toward the upper side of the left and right ends of the inner wall surface of the hood body 5.
The oil smoke flowing vertically upward from the inside of the hood main body 5 goes straight to the inner part of the hood main body 5 and collides with the upper inner wall surface as it is to adhere oil and fat components, or collides with the upper inner wall surface and advances. The left and right filters 16 and 17 always collide without being greatly disturbed in the direction. Then, a part of the oil smoke passes through the left and right filters 16 and 17, but the rest flows in a direction of rising toward the left and right ends along the left and right filters 16 and 17, therefore, the left and right filters 16 and 17 The direction of the oil smoke passing through is increased in the direction toward the central portion inside the hood main body 5 due to the vector relationship with the oil smoke not passing through, that is,
It becomes the direction toward the left and right intake holes 7, 8 and flows smoothly. The oily smoke is efficiently removed by the left and right filters 16 and 17 when passing through the left and right filters 16 and 17 by the various actions described above, and then, from the left and right intake holes 7 and 8. It is sucked into the fan casing 12 and discharged to the outside 22 through the chamber 24 and the duct 23. On the other hand, the oily smoke that does not pass through the left and right filters 16 and 17 flows toward the left and right ends and stays in the left and right collection space parts 20 and 21, but the left and right collection space parts 20 and 21 Since the space becomes deeper toward the inside, the oil smoke is gradually discharged through the left and right filters 16 and 17 to the outside 22 without leaking from the left and right lower ends of the hood body 5 to the inside 25 side. It will be.

Thus, according to the range hood of the embodiment of the present invention, the left and right filters 16, 17 and the hood body 5
By forming the left and right collection space portions 20 and 21 that are deep in the vertical direction and have a large volume between the left and right inner wall surfaces, even if the oily smoke stays when it collides with the left and right filters 16 and 17, The left and right collection spaces 20 and 21 are surely collected, so that it is possible to reliably prevent the oil smoke from leaking out from the left and right lower ends of the hood body 5 to the room 25 side.

Further, since the left and right filters 16 and 17 are provided in an inclined shape, the areas of these left and right filters 16 and 17 are ensured to be wider in the limited space in the hood body 5. Therefore, it is possible to improve the oil and fat component collection efficiency of the left and right filters 16 and 17.

Further, since the left and right filters 16 and 17 are provided so as to be inclined in the opposite directions so that the upward gap becomes large, in addition to efficiently collecting the oil and fat component in a wide area, Does not stain the inside of the hood body 5, and the advancing direction of the oil smoke is not greatly disturbed inside the hood body 5, and the left and right filters 1
After passing through 6 and 17, the air flows smoothly toward the left and right intake holes 7 and 8, so that the collection efficiency of oil smoke can be further improved.

[0027]

As is apparent from the above description of the embodiments, according to the present invention, the outer surfaces of the left and right filters facing the left and right intake holes of the fan casing provided in the center of the hood body in the left and right direction. And the inner wall surface of the hood body, the left and right collection space portions are formed, and the left and right space portions are formed between the inner surface of the left and right filters and the left and right suction holes. It is possible to provide a range hood that can reliably prevent the oil smoke that has flowed into the interior from leaking out from the left and right lower ends of the hood body toward the indoor side.

Further, by arranging the left and right filters in a slanted manner and ensuring a wider area of the filter in a limited space in the hood body, the efficiency of collecting oil and fat components of the filter can be improved. it can.

Further, by tilting the left and right filters in opposite directions so that the upward gap becomes large, the advancing direction of the oil smoke will not be greatly disturbed within the hood body if it stays once without passing through the filter. Those that have passed through can be made to flow smoothly toward the left and right intake holes, and the oil and fat component collection efficiency of the filter can be further improved, and the oil smoke collection efficiency can be improved.

[Brief description of drawings]

FIG. 1 is a longitudinal sectional front view showing an installed state of a range hood according to an embodiment of the present invention.

FIG. 2 is a longitudinal side view of the same.

FIG. 3 is a vertical sectional front view of a conventional range hood.

[Figure 4] Side view of the same section

[Explanation of symbols]

 1 Cooker 2 Wall surface 3 Suction port 4 Discharge port 5 Hood body 6 Vent hole 7 Left intake hole 8 Right intake hole 12 Fan casing 13 Fan 14 Fan 15 Electric motor 16 Left filter 17 Right filter 20 Left collection space 21 Right collection Space 22 Outdoor 26 Left space 27 Right space

Claims (3)

[Claims] 1. A box-shaped hood main body which is provided on a wall surface of a house so as to cover an upper side of a cooking device, has a suction port on a lower surface, and has a discharge port above, and left and right inside the hood main body. A fan casing provided in the central portion of the direction, a left intake hole and a right intake hole on the left and right side surfaces, and a ventilation hole in a portion communicating with the discharge port, and the fan casing provided inside the fan casing. A fan that sucks air from the intake hole and the right intake hole and exhausts the air to the outside of the room, an electric motor that drives the fan, a left filter that is arranged to face the left intake hole, and a fan that faces the right intake hole. A right filter provided, and a left and right collection space portion between the outer surface of the left and right filters and an inner wall surface of the hood body, between the inner surface of the left and right filters and the left and right suction holes. To the left and right spaces, Range hood that is formed respectively. 2. The range hood according to claim 1, wherein the left and right filters are formed in an inclined shape. 3. The range hood according to claim 1, wherein the left and right filters are inclined in opposite directions so as to increase the upper space.