TWM529122U - Range hood - Google Patents

Description

Ventilator

This creation relates to a range hood, especially one that can form a complete guiding airflow and improve exhaust efficiency for use in factories, laboratories and kitchens.

The "traditional range hood" is not much different from the top suction hood used in the workplace. When the hood is inhaled, air and pollutants will enter through the suction port and then through the conduit. To the outside. Among them, the air flow rate near the position of the suction port is large, and the air flow rate away from the position of the suction port will rapidly decrease as the distance from the suction port increases. Therefore, within a short distance below the suction port, the speed of the air upwards has become small, so that the upward suction force is insufficient, and it is highly susceptible to disturbance airflow from the movement of people, fans or air-conditioning operations. Allows soot or contaminants to escape as the flow of disturbed air flows.

In view of the above problems, the currently effective improvement method is to add a rectangular baffle to the left and right sides of the suction hood of the range hood, and a suction opening with a downward opening on the bottom surface of the suction hood, the suction port is generally long The strip has a long side and two short sides, and the two long sides are respectively parallel to the front end and the rear end of the suction hood. The top end of the suction hood has an exhaust pipe that is connected to an air suction device such as a blower to draw up from the air suction port and discharge the air when the air suction device is in operation.

However, in actual use, since the suction port is provided on the bottom surface of the suction hood, and The left and right sides of the suction hood are respectively provided with rectangular baffles, and the height of the baffle is separated, so that the distance between the pollution source and the bottom surface of the suction hood is too long, so that the power of the suction port to attract pollutants becomes small and the exhaust gas is reduced. effectiveness.

In view of this, in order to provide a structure different from the conventional technology and to improve the above-mentioned shortcomings, the creator has accumulated many years of experience and continuous research and development improvements, and this creation has not been produced.

An object of the present invention is to provide a range hood by providing at least one suction port extending horizontally and in a straight line on the upright portion of the suction hood, and on the left side and the right side of the suction hood The structure of the baffle is respectively arranged below, which can solve the problem that the suction force of the suction port of the conventional range hood is insufficient to reduce the exhaust efficiency, and can form a complete guiding airflow, so that the soot and the harmful gas can be smoothly discharged. To improve exhaust efficiency.

For the purpose of the above creation, the range hood of the creation includes a suction hood, a left baffle and a right baffle. Wherein, the suction hood is a substantially L-shaped casing, comprising an upright portion and a horizontal portion, wherein the upright portion is provided with at least one suction port horizontally extending in a straight line, at least one suction port The opening is directed toward the front end surface of the suction hood, and at least one suction port is parallel to the front end surface and the rear end surface of the suction hood, the suction hood is connected to an air suction device, and the air suction device is connected to at least one air suction port; the left baffle is fixed On the left side of the suction hood, a large part of the left space surrounded by the closed upright portion and the horizontal portion is closed, and the bottom end of the left baffle is downwardly beyond at least one suction port for blocking the left side of the at least one suction port; The right baffle is fixed to the right side of the suction hood for closing most of the right space surrounded by the upright portion and the horizontal portion, and the bottom end of the right baffle is downwardly beyond at least one suction port for blocking at least one suction port On the right side.

In implementation, the top end of the left baffle is attached to the left side of the horizontal portion of the suction hood At the end, the front end and the bottom end of the left baffle are curved surfaces having one curvature of one curvature or multiple curvatures.

In implementation, the top end of the right baffle is coupled to the right bottom end of the horizontal portion of the suction hood, and the front end and the bottom end of the right baffle are curved surfaces having a curvature of one or more curvatures.

In implementation, the bottom of the upright portion includes at least one flow guiding surface for guiding waste oil.

In practice, the creation further includes an oil container, the oil container is coupled to the bottom of the upright portion, and at least one of the flow guiding planes of the upright portion is provided with at least one through hole extending through the upper and lower sides for guiding the waste oil into the oil. Inside the container.

In order to facilitate a deeper understanding of this creation, it is detailed later:

1‧‧‧Exhaust hood

2‧‧‧ suction hood

21‧‧‧ horizontal department

22‧‧‧Upright Department

221‧‧ ‧ diversion plane

222‧‧‧through hole

23‧‧‧Exhaust pipe

24‧‧‧Exhaust port

241‧‧‧Large hole

242‧‧‧ Holes

25‧‧‧Oil container

3‧‧‧ left baffle

4‧‧‧right baffle

5‧‧‧Exhaust device

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a perspective view of a preferred embodiment of the present invention.

Figure 2 is a front view of a preferred embodiment of the present invention.

Figure 3 is a cross-sectional view of a preferred embodiment of the present invention.

Figures 4 and 5 are front views of the different arrangements of the single suction ports of the creation.

Figure 6 is a diagram showing the state of use of the preferred embodiment of the present invention.

Figures 7 and 8 are cross-sectional views of the left and right baffles having different shapes for the preferred embodiment of the present invention.

Figure 9 is a cross-sectional view of the creation with three suction ports.

Please refer to the first embodiment of the present invention. The preferred embodiment of the present invention comprises a suction hood 2, a left baffle 3, a right baffle 4 and an air extracting device 5. Wherein, the side hood 1 is defined as a front end or one side of the user, which is opposite to one side or one side of the user. It is defined as the rear end, and the left side and the right side are defined when the user faces the range hood 1 .

The suction hood 2 is a substantially L-shaped casing having a space formed therein, and the suction hood 2 includes a horizontal portion 21 and an upright portion 22. The top surface of the horizontal portion 21 is connected to the air suction device 5 via an air suction pipe 23, and the air suction device 5 is a suction fan, a blower or other extractable fluid machine. In the implementation, the air suction device 5 is positioned in the air suction pipe 23, and the air suction device 5 can also be installed outdoors or at a remote place via the air suction pipe 23. The front end surface of the upright portion 22 is provided with an air suction port 24 which is horizontal and extends in a straight line on the left and right sides. The opening of the air suction port 24 faces the front end surface of the air suction cover 2, and the air suction port 24 includes two long sides and Two short sides, two long sides are respectively parallel with the front end surface and the rear end surface of the suction hood 2, and the lower long side protrudes forward with respect to the upper long side toward the front end surface of the suction hood 2 for receiving waste oil. It flows down to the inside of the upright portion 22, and the suction port 24 and the air suction device 5 communicate with each other. In practice, the air suction port 24 may also be composed of two shorter elongated holes 241 as shown in FIGS. 4 and 5, or may be composed of a plurality of holes 242.

The bottom portion of the upright portion 22 includes two substantially V-shaped flow guiding planes 221 for guiding waste oil, and an oil container 25 is coupled to the bottom of the upright portion 22, and the flow guiding plane 221 of the upright portion 22 is provided. There is a through hole 222 extending through the upper and lower sides for guiding the waste oil into the oil container 25. When implemented, the flow guiding plane 221 can also be a flat plate inclined to the side of the upright portion 22, and the effect of guiding the waste oil can also be achieved.

The top end of the left baffle 3 is coupled to the left bottom end of the horizontal portion 21 of the suction hood 2, and the rear end of the left baffle 3 is coupled to the left front end of the upright portion 22 of the suction hood 2, and the front end of the left baffle 3 And the bottom end is a curved surface having a single curvature. When the left flap 3 is fixed to the left side of the suction hood 2, it is possible to close most of the left space surrounded by the horizontal portion 21 and the upright portion 22. The bottom end of the left flap 3 extends downward beyond the suction port 24 to block the left side of the suction port 24.

The top end of the right baffle 4 is coupled to the right bottom end of the horizontal portion 21 of the suction hood 2, and the rear end of the right baffle 4 is coupled to the right front end of the upright portion 22 of the suction hood 2, and the front end of the right baffle 4 And the bottom end is a curved surface having a single curvature. When the right shutter 4 is fixed to the right side of the suction hood 2, most of the right space surrounded by the horizontal portion 21 and the upright portion 22 can be closed. The bottom end of the right baffle 3 is downwardly beyond the suction port 24 to block the right side of the suction port 24.

Thereby, as shown in Fig. 6, when the creation is fixed on the wall and a gas generating device starts to generate soot or other harmful gas, the operation of the air extracting device 5 causes the air suction port 24 to start pumping backward. The suction function of the suction port 24 forms a downward oblique rearward supplemental airflow and an upward oblique rearward intake airflow below the front end of the horizontal portion 21 of the suction hood 2 to drive the soot or other harmful gas to flow backward, and After passing through the space inside the suction hood 2, it is discharged outward through the air suction device 5. The accumulated waste oil flows into the oil container 25 through the through holes 222 in the flow guiding plane 221. Due to the blocking of the left baffle 3 and the right baffle 4, the disturbing airflow in the lateral direction can be resisted to prevent the airflow structure of the intake air from being destroyed, so that the wind speed at the front end of the air suction port 24 is increased to form a complete guide. Introduce airflow to remove soot and harmful gases.

In implementation, the curved surface of the left baffle 3 and the curved surface of the right baffle 4 may also be as shown in FIG. 7 , and the front end and the bottom end are curved surfaces having multiple curvatures; or as shown in FIG. 8 , the left block The front end and the bottom end of the plate 3 and the front end and the bottom end of the right baffle 4 respectively form a slope, which can also achieve the effect of blocking the lateral disturbing airflow. As shown in FIG. 9, the air suction port 24 can also be set to three and parallel to each other, or two or more than three, and can also generate a backward intake air flow to drive the oil smoke or other harmful gas backwards. flow.

In summary, according to the above disclosure, the creation can achieve the intended purpose, providing a complete guiding airflow for smooth discharge of soot and harmful gases. Improve the exhaust efficiency, and can effectively eliminate the waste hood of waste oil, which is of great value in the industry, and proposes a new type of patent application according to law.

1‧‧‧Exhaust hood

2‧‧‧ suction hood

21‧‧‧ horizontal department

22‧‧‧Upright Department

221‧‧ ‧ diversion plane

222‧‧‧through hole

23‧‧‧Exhaust pipe

24‧‧‧Exhaust port

25‧‧‧Oil container

3‧‧‧ left baffle

5‧‧‧Exhaust device

Claims (8)

An exhaust hood, defined as a front end adjacent to one side or one side of a user, defined as a rear end opposite to or away from one side of the user, and facing the exhaust hood to define a left side and a right side, the range hood The utility model comprises: a suction hood, which is a substantially L-shaped casing, comprising an upright portion and a horizontal portion, wherein the upright portion is provided with at least one suction port which is horizontal and extends in a straight line, the at least one The opening of one of the suction ports faces the front end surface of the suction hood, and the at least one air suction port is parallel to the front end surface and the rear end surface of the suction hood, and the suction hood is connected to an air suction device, and the air suction device and the at least one a suction port is connected; a left baffle is fixed to the left side of the suction hood to close a majority of the left space surrounded by the upright portion and the horizontal portion, and the bottom end of the left baffle extends downwardly beyond the at least a suction port for blocking the left side of the at least one air suction port; and a right baffle fixed to the right side of the air suction cover for closing a majority of the right side space surrounded by the upright portion and the horizontal portion The bottom end of the right baffle extends downward beyond the At least one suction port for blocking the right side of the at least one suction port. The hood of the first aspect of the invention, wherein the front end of the left baffle is coupled to the left bottom end of the horizontal portion of the suction hood, and the front end and the bottom end of the left baffle have A curved surface of one of a single curvature or a multiple curvature. The range hood of claim 1, wherein the front end and the bottom end of the left baffle form a slope. The hood of the first aspect of the invention, wherein the top end of the right baffle is coupled to a right bottom end of the horizontal portion of the suction hood, and the front end and the bottom end of the right baffle have A curved surface of one of a single curvature or a multiple curvature. The range hood according to claim 1, wherein the front end and the bottom end of the right baffle form a slope. The range hood of claim 1, wherein the bottom portion of the upright portion includes at least one flow guiding surface for guiding waste oil. The range hood of claim 6, further comprising an oil container, the oil container is coupled to the bottom of the upright portion, and at least one of the guide portions of the upright portion is provided with at least one A through hole penetrating up and down for guiding waste oil into the oil container. The range hood according to claim 1, wherein the suction port comprises two long sides and two short sides, and the two long sides are respectively parallel to the front end face and the rear end face of the suction hood, and below The long side protrudes forward toward the front end face of the suction hood with respect to the upper long side.