CN211146606U

CN211146606U - Wall-mounted low-draught-fan shallow-depth range hood

Info

Publication number: CN211146606U
Application number: CN201921010515.4U
Authority: CN
Inventors: 葛德涌
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-07-01
Filing date: 2019-07-01
Publication date: 2020-07-31
Anticipated expiration: 2029-07-01

Abstract

A low shallow depth range hood of hanging fan includes: decorate cover 1, the air-out cover 6 of installation tuber pipe, fan motor, oil cup 10, control switch 11, characterized by: the decorative cover 1, the air outlet cover 6, the oil cup 10, the fan motor and the control switch 11 are installed on the shallow and deep chassis 2, and the thin fan volute 4 is fixed at the rear part in the shallow and deep chassis 2 and is positioned according to the lowest position, so that the lowest arrangement of the air inlet of the fan of the whole machine is realized. The flow stabilizing plate 5 is closely attached to the front side of the thin fan volute 4 and forms a space I (A) with the shallow and deep case 2. The speed regulation plate 3 is hinged with the shallow depth case 2 at the upper end 2A thereof, and the speed regulation plate 3, the flow stabilization plate 5 and the shallow depth case 2 form a space II (B). Because of closing the design of the shallow depth case that the ceiling-suction range hood fan case, collection petticoat pipe function are as an organic whole, can not interfere with the culinary art district space, its whole mounting height can reduce by a wide margin, and the negative pressure zone directly covers the culinary art region to strengthen the smoking effect of cigarette machine greatly, more had the advantage of easy cleanness, the consumption is little.

Description

Wall-mounted low-draught-fan shallow-depth range hood

Technical Field

The utility model relates to a range hood field, in particular to low shallow depth range hood who puts of wall-hanging fan.

Background

The smoking effect of range hood mainly depends on the produced negative pressure of fan during operation, and the size of negative pressure sharply attenuates along with the distance increases, and is nearer from fan air intake department, and the negative pressure is big more, and the smoking effect is better, otherwise then otherwise. A common inverted T-shaped top suction type range hood in the market is a smoke collection cavity structure formed by an upper double-air-inlet fan box and a lower stretching part, and has a large depth dimension of between 450 and 520 mm. In order to ensure the cooking space and avoid the cooking space from colliding with people and cookers, and in addition, the safety factor is considered, the mounting height of the lower edge of the smoke collection cavity (generating a negative pressure zone) away from the cooking table top is required to be more than 70cm, thus, the actual distance from a fan air inlet arranged above the smoke collection cavity and in the fan box to the cooking table top is required to be more than 100cm, the fan air inlet is far away from the cooking operation zone, the actual measurement of the negative pressure borne by the cooking operation zone is very small, and the smoke exhaust effect of the range hood is certainly not good.

How to move the negative pressure area of the fan downwards and improve the smoking effect of the range hood is a subject of the range hood industry.

Patent CN201320425553.2 "fan double air intake direct suction type range hood", patent CN201621063063.2 "automatic lifting range hood", which is a thought for solving this problem in the industry, the two schemes have differences, but the common point is that on the basis of keeping the original inverted "T" shaped top suction type range hood structure, a downward straight section air suction inlet is added below the rear of the smoke collection cavity, so that the smoke collection cavity of the whole range hood is in a closed "7" shape, the downward straight section air suction inlet is fixed, patent CN201320425553.2 is fixed, patent CN201621063063.2 can be moved up and down telescopically, and the starting point is that on the premise of avoiding the interference between the machine body and the cooking space, the negative pressure area of the fan is extended to the local part of the cooking area through the newly added flat lower air suction inlet to enhance the smoking effect of the range hood. The problems are that:

in the two schemes, the actual distance between the air inlet of the fan and the cooking operation area is not changed, the air inlet of the fan and the cooking operation area are extended by obtaining local negative pressure at the expense of the area of the original negative pressure area, and the local smoking effect of the whole range hood is improved, but the overall smoking effect is not good.

The smoke collecting cavity which is originally opened, is in a stretched and formed basin shape and can be cleaned at one time is changed into a 7-shaped airtight structure, so that the inverted T-shaped top suction type range hood is originally bent and prolonged more in an unreasonable air channel, the oil passing area is increased, the oil pollution is more extensive, and the problem that oil stains in the airtight cavity cannot be cleaned in the future is obvious.

And thirdly, the air channel is flattened, bent and prolonged, so that the air inlet area is reduced, the wind resistance is increased, and the power consumption of the fan is increased.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects in the prior art, the invention provides a technical scheme of a shallow depth range hood with a low-mounted wall-mounted fan.

The design idea is as follows: the range hood gets rid of the thinking limitation that patents CN201320425553.2 and CN201621063063.2 are bound to the original inverted T-shaped top-suction range hood, cancels the structure of a fan box and a smoke collecting hood of the inverted T-shaped top-suction range hood with large depth and downward movement which can interfere with a cooking area, and provides the shallow depth range hood which is installed on a wall, keeps the appearance of the inverted T-shaped top-suction range hood, is provided with a fan arranged below, adopts a shallow depth case, a fan box body and the smoke collecting hood into a whole, is designed to not interfere with a cooking space by depth compression of the case, and correspondingly, a thin fan volute is arranged in the shallow depth case to ensure that the installation height of a fan air inlet is the lowest.

The technical scheme adopted by the invention is specifically as follows: a low shallow depth range hood of hanging fan includes: the range hood decorates cover, installation air-out cover, fan motor, oil cup, the control switch who goes out the tuber pipe, its characterized in that: the shallow depth machine case of the aforementioned decoration cover of installation, air-out cover, fan motor, oil cup, control switch for not interfering with the culinary art operation district, the design depth is 125 sand-paper 300mm, the opening under the positive front of shallow depth machine case and, upper portion is opened there is the air-out cover installing port. The thin fan volute is arranged at the rear part in the shallow depth case according to the lowest position (the function of the fan case is achieved) so as to achieve the lowest arrangement of an air inlet of a fan of the whole machine, the corresponding thickness of the thin fan volute is 75-250mm, the flow stabilizing plate is tightly attached to the front of the thin fan volute and mainly plays a role in reducing turbulence generated by direct collision of air inlet flow and the lower side surface of the thin fan volute when the fan of the range hood inhales, the flow stabilizing plate and the shallow depth case form a space which plays a role in preventing oil smoke from entering the outer side of the thin fan volute and the inner part of the shallow depth case and keeping the inner part of the case clean. The speed regulating plate is connected with the shallow and deep case and hinged with the front upper end of the shallow and deep case, the speed regulating plate, the flow stabilizing plate and the shallow and deep case form a space at the side of the air inlet of the fan, and the space is a negative pressure area (functioning as a smoke collecting cavity) when the range hood works.

The installation opening of the speed regulating plate is changed, and the size of the space and the size of the air inlet can be changed, so that the air speed and the negative pressure of the air inlet of the range hood can be adjusted.

The opening degree of the speed regulation plate can be fixed or variable, can be in a long opening state, and can also be changed according to the working state requirement of the fan.

Because collection fan box and collection petticoat pipe function are as an organic whole, adopt 125 to increase with money 300mm shallow depth quick-witted case, can not interfere with the culinary art operation district, this scheme range hood fan air intake can be followed original 100cm above reduction to 60cm to 25cm apart from cooking mesa mounting height, range hood's smoking effect strengthens greatly.

In order to further reduce the oil smoke pollution in the volute of the range hood and facilitate the cleaning in the future, the screen plate can be additionally arranged at the front end of the speed regulation plate and in front of the air inlet of the fan of the low-positioned shallow depth range hood of the wall-mounted fan, when the hot oil smoke sucked in the volute of the thin fan passes through the screen plate, due to condensation or filtration, part of the oil smoke can be intercepted, filtered and liquefied by the screen plate, directly guided into the oil cup, and the oil smoke entering the volute is also partially reduced.

The mesh plate is fixed relative to the speed regulation plate with fixed opening, and the opening of the mesh plate can be correspondingly changed by drawing in the sliding groove hinged with the shallow-depth case relative to the speed regulation plate with variable opening.

The beneficial effects of this technical scheme are:

1. the problem that the original inverted T-shaped top suction type range hood has larger depth dimension, the low-position installation interferes with an operator and a cooking operation area, and the high-position installation generates the phenomenon that a negative pressure area is far away due to the overhigh air inlet of a fan and the suction force is insufficient is solved; shallow depth machine case design, close fan frame, collection petticoat pipe function as an organic whole, because of not occupying culinary art district space, this scheme range hood mounting height can reduce by a wide margin, and culinary art space is pressed close to its air intake, and negative pressure zone directly covers culinary art region to strengthen range hood's smoking effect greatly.

2. By implementing the technical scheme, the air channel is simplified, shortened and reasonable, the length and the area of the oil smoke passageway are reduced, the oil smoke pollution in the range hood body is reduced, and the later cleaning difficulty of a user is reduced.

3. The technical scheme has the advantages of simplifying, shortening and rationalizing the air channel, reducing the wind resistance and the power consumption of the fan, and achieving the efficiency of energy conservation.

Drawings

FIG. 1 is a perspective view of a wall-mounted low-draught fan shallow-depth range hood

FIG. 2 is a diagram of the installation relationship between the flow stabilizer 5 of the low-mounted wall-mounted fan shallow depth range hood and the thin fan volute 4

FIG. 3 is a structural relationship diagram of a low-mounted fan low-depth range hood shallow depth case 2, a thin fan volute 4, a flow stabilizing plate 5, a speed regulating plate 3 and a space II (B)

FIG. 4 is a diagram showing the relationship between the opening degree of the speed-regulating plate 3 of the wall-mounted low-draught fan and the space II (B) of the shallow depth range hood

FIG. 5 is a structural relationship diagram of a screen plate 9 at a downward hanging position of a speed adjusting plate 3 of the technical scheme that the screen plate 9 is installed at a fan air inlet position of a low-positioned shallow depth range hood of a wall-mounted fan

FIG. 6 is a drawing showing the structure of the screen plate 9 pulling apart when the speed-adjusting plate 3 is at the open position, according to the technical scheme of installing the screen plate 9 at the air inlet of the low-position shallow depth range hood fan of the wall-hanging fan

Detailed Description

Preferred embodiments of the present invention are further described below with reference to the accompanying drawings:

preferred embodiment 1

Fig. 1, fig. 2, fig. 3 and fig. 4 show a first preferred embodiment.

In the figure: 1 is a decorative cover, 2 is a shallow and deep chassis, 3 is a speed regulating plate, 4 is a thin fan volute, 5 is a flow stabilizing plate, 6 is an air outlet cover, 7 is a fan impeller, 8 is a fan air inlet, 10 is an oil cup, and 11 is a control switch.

Figure 1 is a perspective view of a wall-mounted low-draught fan shallow depth range hood,

it has got rid of former "T" shape top-suction type range hood overhead fan case and lower part collection smoke cavity structure, has kept former "T" shape top-suction type range hood's appearance characteristics, collects former "T" shape top-suction type range hood fan case, collection petticoat pipe function as an organic whole, includes: the range hood decorates cover 1, the air-out cover 6 of installation air-out pipe, fan motor, oil cup 10, control switch 11, characterized by: the decoration cover 1, the air outlet cover 6, the oil cup 10 and the control switch 11 are installed on the case 2 with shallow depth, and the depth of the case 2 is 200 mm.

As shown in fig. 2, 3 and 4, the thin blower volute 4 with a thickness of 135mm is fixed at the rear part of the shallow and deep chassis 2 (the function of the blower chassis) and is positioned according to the lowest position, so as to realize the lowest arrangement of the air inlet of the blower of the whole machine.

The flow stabilizing plate 5 is closely attached to the front side of the thin fan volute 4 and forms a space I (A) with the shallow and deep case 2.

The speed regulation plate 3 is hinged with the shallow depth case 2 at the upper end 2A thereof, and the speed regulation plate 3, the flow stabilizing plate 5 and the shallow depth case 2 form a second space (B).

The flow stabilizing plate 5 mainly plays a role in reducing turbulence generated when the air inlet flow directly collides with the lower side surface of the thin type fan volute 4 when the fan impeller 7 of the range hood rotates to suck air.

The first space (A) is formed to enable oil smoke (indicated by an arrow) to only enter the thin fan volute 4 when the range hood works, and the outer side of the thin fan volute 4 and the inner part of the second space (A) of the shallow and deep chassis 2 are not polluted.

The second space (B) becomes a negative pressure area (functioning as a smoke collection cavity) when the fan impeller 7 of the range hood rotates to suck air.

As shown in fig. 3 and 4, the installation opening of the speed regulation plate 3 is variable, the opening is different, and the volume of the space one (B) and the size of the air inlet are also different, so that the air speed, the air pressure and the negative pressure of the inlet air of the range hood can be adjusted.

The opening degree of the speed regulation plate 3 can be fixed or variable, can be in a long opening state, and can also be changed according to the working state requirement of the fan.

Fig. 3 and the arrow in fig. 4 are schematic paths of oil smoke advancing when the range hood works in the scheme.

Preferred embodiment 2

Fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6 show a second preferred embodiment.

In the figure: 1 is a decorative cover, 2 is a shallow and deep chassis, 3 is a speed regulating plate, 4 is a thin fan volute, 5 is a flow stabilizing plate, 6 is an air outlet cover, 7 is a fan impeller, 8 is a fan air inlet, 9 is a screen plate, 10 is an oil cup, 11 is a control switch, and 12 is a screen plate sliding groove.

The parts shown in fig. 1, 2, 3 and 4 are the same as the above:

this scheme has been removed former "T" shape top-suction type range hood overhead fan case and lower part collection smoke cavity structure, has kept former "T" shape top-suction type range hood's appearance characteristic that falls, and it closes former "T" shape top-suction type range hood fan case, collection petticoat pipe function as an organic whole, includes: the range hood decorates cover 1, goes out fan housing 6, fan motor, oil cup 10, control switch 11, characterized by: the decoration cover 1, the air outlet cover 6, the oil cup 10, the fan motor and the control switch 11 are installed on the case 2 with shallow depth, and the depth of the case 2 can be 200 mm.

The speed regulation plate 3 is hinged with the shallow depth case 2 at the upper end 2A thereof, and the speed regulation plate 3, the flow stabilization plate 5 and the shallow depth case 2 form a space B.

The installation opening degree of the speed regulation plate 3 is variable, the opening degrees of the speed regulation plate 3 are different, and the volume of the space II (B) and the size of the air inlet are also different, so that the air speed, the air pressure and the negative pressure of the air inlet of the range hood can be adjusted.

In order to further reduce the oil smoke pollution entering the inner part of the volute of the range hood and facilitate the cleaning in the future, a screen plate 9 is arranged at the front end of the speed regulating plate 3 of the range hood with shallow depth and low position of the wall-mounted fan and the air inlet of the range hood.

The oil smoke sucked into the volute of the fan needs to pass through the screen plate 9 firstly, and due to condensation or filtration, the screen plate 9 can capture part of the oil smoke to liquefy the oil smoke and guide the liquefied oil smoke into the oil cup 10, so that the oil smoke entering the thin fan volute 4 of the range hood is reduced in amount and pollution.

The mesh plate 9 is fixed relative to the speed regulation plate 3 with fixed opening, and relative to the speed regulation plate 3 with variable opening, the mesh plate 9 can be drawn in a mesh plate sliding groove 12 connected with the shallow and deep chassis 2, and the mesh plate sliding groove 12 is movably connected with the shallow and deep chassis 2.

The technical scheme integrates the functions of a fan box and a smoke collecting hood of the inverted T-shaped top suction type range hood and is designed into a whole with a shallow and deep structure, the installation height of the range hood can be greatly reduced because the whole machine does not interfere with the space of a cooking area, the air inlet of the fan is recently close to the cooking space, and a negative pressure area directly covers the cooking area, so that the smoke suction effect of the range hood is greatly enhanced, and the actual measurement data shows that the range hood can be tested at multiple points with the same height in the cooking working area, the suction force is 10 times of that of the inverted T-shaped top suction type range hood, the range hood is a patent CN201320425553.2< fan double-air-inlet direct suction type range hood >, and the patent CN201621063063.2 <. The advantages of easy cleaning and low power consumption are achieved.

Claims

1. A low shallow depth range hood of hanging fan includes: range hood decorates cover (1), installation air-out cover (6) of tuber pipe, fan motor, oil cup (10), control switch (11), its characterized in that: one installation decorate cover (1), go out fan housing (6), fan motor, oil cup (10), shallow depth of depth quick-witted case (2) of control switch (11), slim fan spiral case (4) rear portion is installed according to the extreme low position in shallow depth of depth machine case (2), slim fan spiral case (4) front-mounted is hugged closely in stabilizer (5), and stabilizer (5) and shallow depth of depth machine case (2) constitute space two (B), and the preceding upper end of speed governing board (3) and shallow depth of depth machine case (2) is connected, and speed governing board (3), stabilizer (5) and shallow depth of depth machine case (2) constitute space (A) in fan air intake (8) side.

2. The low shallow depth range hood of wall-hanging fan according to claim 1, characterized in that: the depth of the shallow depth chassis is 125-300 mm.

3. The low shallow depth range hood of wall-hanging fan according to claim 1, characterized in that: the width of the thin fan volute (4) is 75-250 mm.

4. The low shallow depth range hood of wall-hanging fan according to claim 1, characterized in that: the opening degree of the speed regulating plate (3) connected with the shallow and deep chassis (2) is fixed or variable.

5. The low shallow depth range hood of wall-hanging fan according to claim 1, characterized in that: the mounting height of the air inlet (8) of the thin fan volute (4) is 250-600 mm away from the cooking table board.

6. A low shallow depth range hood of hanging fan includes: range hood decorates cover (1), installation air-out cover (6) of tuber pipe, fan motor, oil cup (10), control switch (11), its characterized in that: one installation go out the shallow depth of wind cover (6), decorate quick-witted case (2) of cover (1), slim fan spiral case (4) rear portion in quick-witted case (2), according to the lowest position installation, slim fan spiral case (4) front mounted is hugged closely in current stabilizer (5), current stabilizer (5) and quick-witted case (2) constitute space two (B), the preceding upper end of speed governing board (3) and quick-witted case (2) is connected, speed governing board (3), current stabilizer (5) and shallow depth of depth quick-witted case (2) constitute space one (A) in fan air intake (8) side, at speed governing board (3) front end, the side of admitting air is connected with otter board (9).

7. The low shallow depth range hood of wall-hanging fan according to claim 6, characterized in that: the screen plate (9) is fixed or can be drawn according to the state of the speed regulation plate (3).