CN101270892A - Top side range hood - Google Patents

Abstract

The invention relates to a range hood, in particular to an air inlet structure of the range hood. The invention discloses a range hood with the advantages of a top air inlet range hood and a side air inlet range hood aiming at the defect of incomplete oil smoke suction in the range hood in the prior art. The top side type range hood comprises a panel, a fume collecting hood and a fan, wherein the panel is connected with the fume collecting hood and comprises a side panel and a top panel; the side panel is provided with a side air inlet, and the top panel is provided with a top air inlet. The side air inlet type range hood has the advantages of being capable of sucking and removing oil smoke in a short distance, effectively solving the problem that residual oil smoke escapes upwards in the side air inlet type range hood, having the advantages of the top air inlet type range hood and the side air inlet type range hood and being more thorough in oil smoke sucking and removing. And has the characteristics of no head collision, no oil dripping, beautiful appearance and the like.

Description

Top side range hood

technical field

The invention relates to a range hood, in particular to an air intake structure of the range hood.

Background technique

At present, the range hoods on the market are roughly divided into two types according to the installation method and the air intake principle: the top air intake type range hood shown in FIG. 1 and the side air intake type range hood as shown in FIG. 2 . As shown in Figure 1, the installation position of the top air intake range hood is on the top of the cooktop, the air inlet is parallel to the cooktop, and perpendicular to the wall. Using the principle of natural rising of oil fume gas, the oil fume is sucked through the top air intake. . As shown in Figure 2, the installation position of the side air intake range hood is parallel or approximately parallel to the wall. The air intake is on the side of the stove and close to the side of the pot. Both types of range hoods have their pros and cons:

The top air intake range hood shown in Figure 1 originated in Europe and is adapted to the cooking habits of Europeans who eat light food and less oily fume. The top surface air intake method absorbs the oil fume. For Europeans, it can fully meet their culinary needs. But the disadvantage is: the air inlet is far away from the pot surface (the distance from the pot surface is usually 70cm); according to the cooking habits of Chinese people who cook hot oil and stir-fry peppers, a large amount of soot gas will be diffused during the process of rising. Part of the oil fume escapes to the left and right sides or the outside. Therefore, the top air intake range hood shown in Figure 1 only solves the problem of oil fume flowing upward, but is helpless for the oil fume that diffuses and escapes to the sides or outside. Therefore, the ability to absorb oil fume is poor; the usual way to make up for it is to increase the power of the fan, but this also increases the power consumption.

The side air intake range hood shown in Figure 2 is more suitable for Chinese cooking habits. It is installed at a close distance (usually 10-15cm from the side of the pot). The air inlet is forcibly sucked out; when the fan is running, the airflow in the cavity of the fume collecting hood (2) and the airflow outside the fume collecting hood (2) will form a negative pressure zone in a certain range of space around the stove due to the change of air pressure , tightly surround the oil fume so that the oil fume cannot spread. The above characteristics determine that the side air intake type oil suction unit shown in Figure 2 has a strong ability to absorb and remove oil fumes. But the disadvantage is: because the air inlet is close to the surface of the pot, the installation position is low, when a large amount of oil fume is generated and the food in the pot is constantly turned, the rising and diffusion speed of the oil fume gas will be accelerated, and the rising speed is faster than the left and right diffusion. Although most of the oil fume is sucked through the air inlet at a short distance, a small amount of oil fume that rises and spreads faster will still break through the negative pressure zone and escape from the top of the air inlet and the left and right sides, making the oil fume sucked. In addition to not being thorough, the problem of kitchen pollution has not been completely resolved.

Contents of the invention

The technical problem to be solved by the present invention is to provide a range hood which has both the advantages of the top air intake type range hood and the side air intake type range hood.

The present invention solves the technical problem, and adopts the technical solution that the top-side range hood includes a panel, a smoke collection hood, and a fan, and the panel is connected with the smoke collection hood, and the feature is that the panel includes a side panel and a smoke collection hood. The top panel; the side panel is provided with a side air inlet, and the top panel is provided with a top air inlet.

The beneficial effect of the present invention is that the two functions of the top air intake and side air intake range hood are integrated into one, which not only has the effect of the side air intake type range hood to suck and remove oil fume at a short distance, but also effectively solves the problem of side air intake. The problem of residual oily fume escaping upwards in the air-inlet range hood has the advantages of both the top air-inlet type range hood and the side-inlet type range hood, and the oil fume is more thoroughly removed. And it has the characteristics of no bumping, no dripping oil, and beautiful appearance.

Description of drawings

Figure 1 is a schematic diagram of a range hood with top air intake;

Fig. 2 is a schematic diagram of a range hood with side air intake;

Fig. 3 is a schematic diagram of the top-side range hood of the present invention;

Fig. 4 is a schematic diagram of the internal structure of the top-side range hood shown in Fig. 3;

Fig. 5 is the schematic diagram of embodiment 1; (curved panel)

Fig. 6 is the schematic diagram of embodiment 2; (plane plate, arc junction, angle)

Fig. 7 is the schematic diagram of embodiment 3; (independent air duct, shared blower fan)

FIG. 8 is a schematic diagram of Embodiment 4. (Independent air ducts and independent fans need to be redrawn and marked)

Detailed ways

The technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings and embodiments. The top-side range hood of the present invention skillfully combines the advantages of the top air intake and the side air intake range hood.

See Figure 3 and Figure 4. The top-side range hood of the present invention includes a panel 1 , a smoke collecting hood 2 and a fan 3 . The panel 1 is composed of a side panel 11 and a top panel 12 . A side air inlet 5 is arranged on the side panel 11 , and a top air inlet 4 is arranged on the top panel 12 . The panel 1 is connected with the fume collecting hood 2 to form an internal air passage 20 of the range hood, and the fan 3 is connected with the air outlet 6 of the fume collecting hood. The fan 3 transmits power to the air in the internal air duct, so that the air flows in a prescribed direction and absorbs oil fume.

In the range hood of the present invention, the panel 1 is generally made of plates through a forming process, and commonly used materials include aluminum, cold-rolled steel plates, stainless steel plates, glass steel plates, and the like. In order to reduce the processing technology, the panel 1 of the overall structure is usually used. The top panel 12 can be formed by extending the side panel 11 along an arc, and an arc transition is formed at the junction of the side panel 11 and the top panel 12, which is convenient for cleaning and more beautiful. , and can prevent dripping oil. Making the top panel 12 and the side panels 11 slightly concave curved surfaces can also achieve the above effects, especially if the side panels 11 are made into slightly concave curved surfaces, it can also expand the space above the stove and facilitate cooking operations

In the range hood of the present invention, the side panel 11 can also be made into a plane or substantially a plane shape, and the included angle between the side panel 11 and the vertical direction (wall) is generally selected between 0° and 40°, and the larger the angle, the greater the angle. The stronger the oil fume absorption ability, but it will also occupy the space of the stove. The best angle is about 20°. The top panel 12 can also be made into a planar or substantially planar structure. The angle between the top panel 12 and the vertical direction is usually between 55° and 85°. If the angle is too large, oil dripping may occur; Suction oil fume, the preferred angle is about 80 °.

Due to the two air inlet directions of the top surface and the side surface, the further improved technical solution of the present invention is to set up independent air ducts for the side air inlet 5 and the top surface air inlet 4, so as to facilitate the control and adjustment of the side air inlet 5 and the top surface respectively. The air intake of the air inlet 4 achieves the purpose of reasonably controlling the work of the range hood and saving energy according to different cooking forms. The two independent air ducts can be combined at the air outlet 6, and one fan 3 can be used for work, or a fan can be installed for each of the two independent air ducts, and each can perform its own duties to control the side air inlet 5 and the top air inlet respectively. 4 air intake.

Example 1

Figure 5 is a schematic diagram of the internal structure and panel section of the top-side range hood in this example. The panel 1 is composed of a top panel 12 and a side panel 11, and is formed by a stainless steel sheet through a cold bending (cold rolling) process. In Fig. 5, the top panel 12 is formed by extending the side panel 11 along the arc 13, there is no obvious boundary line between the top panel 12 and the side panel 11, the top panel 12 and the side panel 11 are slightly concave, and there are respectively provided with Top air inlet 4 and side air inlet 5. This panel structure can expand the space above the cooktop and facilitate cooking operations. Moreover, the panel 1 has smooth lines and beautiful appearance, which is convenient for cleaning the panel 1 and does not cause oil dripping.

Example 2

Fig. 6 shows the panel structure shape of the top-side range hood in this example. The side panel 11 and the top panel 12 of this example are substantially flat, the angle α=20° between the side panel 11 and the vertical direction, the angle β=85° between the top panel 12 and the vertical direction, and there is a gap between the side panel 11 and the top panel 12. Obvious curved bend14.

Example 3

Fig. 7 shows the internal air duct structure of the top-side range hood in this example. The side air inlet 5 on the side panel 11 in the figure communicates with the air duct 21, the top air inlet 4 on the top panel 12 communicates with the air duct 22, and the air duct 21 and the air duct 22 are separated into two independent air ducts by a partition 23. The air ducts are converging at the air outlet 6 and connected to the fan 3, and one fan provides air power for the two independent air ducts. Fan 3 in the figure adopts centrifugal fan.

Example 4

As shown in FIG. 8, two independent fans (fan 31 and fan 32) are used in this example. Blower fan 31 adopts centrifugal fan, is used to produce the suction force of side air inlet 5, fan 32 adopts axial fan, is used to generate the suction force of top air inlet 4, and air duct 21 and air duct 22 communicate with air outlet 6. Two independent fan fans (fan 31, fan 32), combined with two independent air ducts (air duct 21, air duct 22), respectively control the air intake volume of the side air inlet 5 and the top air inlet 4, It is convenient to control different cooking types to achieve the purpose of saving energy and reducing consumption. Other structures of this example are identical with embodiment 3.

Claims (10)

1. side-absorption ventilator comprises panel (1), exhaust fume collecting hood (2), blower fan (3), and described panel (1) is connected with exhaust fume collecting hood (2), it is characterized in that, described panel (1) comprises side panel (11) and top panel (12); Described side panel (11) is provided with side air inlet mouth (5), and described top panel (12) is provided with end face air inlet (4).

2. side-absorption ventilator according to claim 1 is characterized in that, described side panel (11) and top panel (12) are overall structure.

3. side-absorption ventilator according to claim 2 is characterized in that, described top panel (12) is to be extended along camber line by described side panel (11) to constitute.

4. side-absorption ventilator according to claim 3 is characterized in that, described top panel (12) and side panel (11) be spill slightly.

5. side-absorption ventilator according to claim 1 is characterized in that, described side panel (11) is an arc with top panel (12) intersection.

6. side-absorption ventilator according to claim 1 is characterized in that, described side panel (11) is the plane, and described side panel (11) is 0～40 ° with the angle of vertical direction.

7. side-absorption ventilator according to claim 1 is characterized in that, described top panel (12) is the plane, and described top panel (12) is 55～85 ° with the angle of vertical direction.

8. according to above-mentioned any described side-absorption ventilator of claim, it is characterized in that described side air inlet mouth (5) and end face air inlet (4) have independent ventiduct separately.

9. side-absorption ventilator according to claim 8 is characterized in that, described independent ventiduct links to each other with described blower fan (3).

10. side-absorption ventilator according to claim 8 is characterized in that described independent ventiduct is provided with independently blower fan.

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