CN207555685U - Range hood - Google Patents

Abstract

The utility model is related to a kind of range hoods, and including two-way centrifugal blower, cabinet and exhaust fume collecting hood, exhaust fume collecting hood includes left and right side plate and the oil guide plate being obliquely installed being connected between left and right side plate；It is characterized in that：First partition is connected between the upper edge of oil guide plate and the spiral case of centrifugal blower, smoke collecting chamber is divided into preceding smoke collecting chamber and rear smoke collecting chamber, and the first suction inlet of centrifugal blower and the second suction inlet are kept apart by first partition across smoke collecting chamber；First suction inlet of preceding smoke collecting chamber connection centrifugal blower, the inner cavity of rear smoke collecting chamber connection exhaust fume collecting hood and the second suction inlet；The second partition that the inner cavity of exhaust fume collecting hood is divided into epicoele and cavity of resorption is equipped in exhaust fume collecting hood, second partition is equipped with axial flow blower；The middle part of oil guide plate is equipped with the oil smoke suction inlet of the cavity of resorption of connection exhaust fume collecting hood close to the lower edge position of oil guide plate；For detecting the control circuit of the speed probe electric signal of axial flow blower connection range hood.

Description

Range hood

Technical field

The utility model is related to arrive range hood field more particularly to a kind of good range hood of suction effect.

Background technology

CN201610905111.6 is disclosed《A kind of range hood》, including cabinet and the collection cigarette being connected to below cabinet Cover, cabinet is interior to be equipped with centrifugal blower, and exhaust fume collecting hood is equipped with the air inlet for the inner cavity for connecting the cabinet；It is characterized in that it is described from Heart wind turbine is Double suction type centrifugal wind motor；The exhaust fume collecting hood includes mutually independent first cavity and the second cavity, the air inlet First cavity is connected, first cavity connects the advance air port of the centrifugal blower；Second cavity extends downwardly And there is the inclined-plane to turn forward from bottom to top, left side axial flow blower and right side axial flow blower, institute are equipped at intervals on the inclined-plane It states and is divided into second cavity and the corresponding left channel of the left side axial flow blower equipped with first partition in the second cavity With with the corresponding right channel of the right side axial flow blower, the left channel connects the centrifugation with second airflow channel The rear air inlet of wind turbine.And equipped with temperature-detecting device, judge whether the left and right sides has kitchen range work, when side works, The axial flow blower set on corresponding position kitchen ventilator is opened, improves the effluent amount, and then improve smoke absorption effect.This application is in stove During the work of tool unilateral side, kitchen ventilator flow can be efficiently used, improves smoke absorption effect, the race caused by less external air flow disturbance Cigarette problem, but when an axial flow blower works, another also can be with flow rotation, and then occupies a part of kitchen ventilator Flow reduces and singly opens the due effect in side.

Invention content

Technical problem to be solved in the utility model is to provide one kind for the present situation of the prior art and can effectively avoid Run the good range hood of the suction effect of cigarette.

Technical solution is used by the utility model solves above-mentioned technical problem：The range hood, including being installed in it There are the cabinet of centrifugal blower and the exhaust fume collecting hood being connected to below the cabinet, smoke collecting chamber is formed between cabinet and exhaust fume collecting hood, institute Stating centrifugal blower has the first suction inlet and the second suction inlet for connecting the smoke collecting chamber, and the exhaust fume collecting hood includes left and right side plate And it is connected to the oil guide plate being obliquely installed between left and right side plate；

It is characterized in that：

First partition, the first partition are connected between the spiral case of the upper edge of the oil guide plate and the centrifugal blower The smoke collecting chamber is divided into preceding smoke collecting chamber and rear smoke collecting chamber, and the first of the centrifugal blower is sucked across the smoke collecting chamber Mouth and the second suction inlet are kept apart；

The preceding smoke collecting chamber connects the first suction inlet of the centrifugal blower, and the rear smoke collecting chamber connects the exhaust fume collecting hood Inner cavity and second suction inlet；

The interior intracavitary of the exhaust fume collecting hood is additionally provided with the second partition that the inner cavity of the exhaust fume collecting hood is divided into epicoele and cavity of resorption, The second partition is equipped with axial flow blower, and the rear air inlet of the axial flow blower connects the epicoele, the advance of axial flow blower Air port connects the cavity of resorption；

The middle part of the oil guide plate is equipped with the oil smoke for the cavity of resorption for connecting the exhaust fume collecting hood close to the lower edge position of oil guide plate Suction inlet；

For detecting the control circuit of the speed probe electric signal of axial flow blower connection range hood.

Preferably, the through-hole for connecting the epicoele and cavity of resorption can also be additionally provided on the second partition.

The ratio between aspiration Q1 and the aspiration Q2 via the rear smoke collecting chamber via the preceding smoke collecting chamber are 1~3:1.

Preferably, the vertical distance >=300mm between the oil smoke suction inlet and the smoke collecting chamber.Smoke collecting chamber is arranged on In the oil smoke suction inlet 300mm more thans position apart from lower part, apart from cookware farther out, the speed of quick ascension can be preferably absorbed Larger oil smoke, because big oil smoke speed is fast, upward dash is big, and nearer air inlet can not capture the flow at high speed oil of process Cigarette, and when oil smoke reaches remotely air inlet, oil smoke speed is decreased, draws be more prone at this time.Two air inlets It cooperates, synergistic effect can effectively avoid running cigarette, and anti-external disturbance performance is good.

The front-end edge of the left and right side plate externally protrudes out in the 30~100mm of oil guide plate；The left and right side plate evagination Part and the surface of the oil guide plate form collection cigarette slot, are formed and hold together cigarette district, to obtain better suction effect.If evagination away from It is deep from too, oil smoke can be caused careless and sloppy；If evagination is too shallow, oil smoke can be crashed on oil guide plate, under the action of oil guide plate to Outer rebound；It will influence suction effect.

The inlet face of the inlet face and the smoke collecting chamber of the oil smoke suction inlet is mutually perpendicular to.The structure causes two oil smoke Entrance is cooperated, is complementary to one another so that most of oil smoke is quickly siphoned away via smoke collecting chamber, and fraction oil smoke enters oil smoke suction Entrance effectively avoids running cigarette phenomenon and shields external air flow interference.

The ratio between length and width of the oil smoke suction inlet is 8~15:1.The structure can either ensure suction velocity, with higher Flow velocity sucks oil smoke, can also ensure inhalation area, so as to ensure suction effect.

The length of the oil smoke suction inlet is 400~600mm.The program can take into account the oil of left and right sides kitchen range simultaneously The suction of cigarette.

The width of the collection cigarette slot is 30~80mm；The program can be further ensured that the flow velocity of oil smoke, so as to improve suction Effect.

Compared with prior art, range hood provided by the utility model on oil guide plate by setting oil smoke to suck Mouthful, two air inlets, and axial flow blower is set in exhaust fume collecting hood inner cavity up and down are formed, after kitchen ventilator is opened, pass through axis stream The rotating speed of wind turbine passive rotation makes the flow-rate ratio between two smoke collecting chambers reach best come the intake of smoke collecting chamber after adjusting, from And obtain ideal suction effect；Meanwhile oil smoke suction inlet is arranged on oil guide plate apart from cookware closer to having more for oil smoke Big attraction can be good at inhaling oil smoke in control to kitchen ventilator smoke collecting chamber, reduce diffusion of the oil smoke during ascension, main Smaller oil smoke is directed to, because smaller oil smoke speed is low, the upward dash of oil smoke is small, and air inlet distance closely can be easily by oil smoke It draws, easily escapes after the diffusion of remote oil smoke；Oil smoke suction inlet is usually arranged on to the centre position of oil guide plate, can will be cooked Oil smoke caused by preparing food inwardly aspirates, and avoids oil smoke to surrounding diffusion, escape, suction effect is more preferable.

Description of the drawings

Fig. 1 is the stereoscopic schematic diagram of the utility model embodiment assembling structure；

Fig. 2 is that (cabinet, the backboard of exhaust fume collecting hood and left side is omitted in the internal structure schematic diagram of the utility model embodiment Plate)；

Fig. 3 is oil guide plate and the stereoscopic schematic diagram of first partition assembling structure in the utility model embodiment；

Fig. 4 is the internal structure schematic diagram (left plate that cabinet and exhaust fume collecting hood is omitted) of the utility model embodiment.

Specific embodiment

The utility model is described in further detail below in conjunction with attached drawing embodiment.

As shown in Figures 1 to 4, which includes：

Cabinet 1 is mounted therein with centrifugal blower 4；Centrifugal blower in the present embodiment is Double suction type centrifugal wind motor, before having The first suction inlet 41 and the second suction inlet 42 of postposition put.

Exhaust fume collecting hood 2, including left and right side plate 21 and the oil guide plate 22 being obliquely installed being connected between left and right side plate 21 It is enclosed with vertically arranged backboard 27, the lower ora terminalis of the lower ora terminalis connection backboard 27 of oil guide plate 22；Exhaust fume collecting hood 2 is connected to machine The lower section of case 1 is formed with smoke collecting chamber between cabinet 1 and exhaust fume collecting hood 2.

The front-end edge of left and right side plate 21 externally protrudes out in forward oil guide plate 50mm；The part of 21 evagination of left and right side plate and Oil Guide The surface of plate 22 forms collection cigarette slot 26, holds together cigarette to facilitate, and oil smoke is avoided to collide rebound escape after oil guide plate.

Second partition 6, is horizontally installed on the interior intracavitary of exhaust fume collecting hood 2, and the inner cavity of exhaust fume collecting hood is divided into epicoele 28 and cavity of resorption 29, second partition 6 is equipped with axial flow blower 5, the rear air inlet connection epicoele 28 of axial flow blower 5, the advance air port of axial flow blower 5 Connect cavity of resorption；The through-hole 61 of connection epicoele 28 and cavity of resorption 29 is additionally provided on second partition 6.

The middle part of oil guide plate 22 is equipped with oil smoke suction inlet 25 close to the lower edge position of oil guide plate 22, and oil smoke suction inlet 25 connects The cavity of resorption 29 of logical exhaust fume collecting hood.

The entrance face that oil smoke inhales suction inlet is vertically arranged, and the entrance face of smoke collecting chamber is laterally set, and is mutually perpendicular； Vertical distance between oil smoke suction inlet 25 and smoke collecting chamber 21 is 350mm.The length of oil smoke suction inlet 25 is in the present embodiment 500mm, width 50mm.

First partition 3 is connected between the upper edge of oil guide plate 22 and the spiral case 43 of centrifugal blower, and first partition 3 passes through Smoke collecting chamber is divided into preceding smoke collecting chamber 23 and rear smoke collecting chamber 24, and the first suction inlet 41 and second of centrifugal blower is inhaled by smoke collecting chamber Entrance 42 is kept apart.

Preceding smoke collecting chamber 23 connects the first suction inlet 41 of centrifugal blower, and rear smoke collecting chamber 24 connects inner cavity and the centrifugation of exhaust fume collecting hood Second suction inlet 42 of wind turbine.

In the present embodiment, the width of preceding smoke collecting chamber 23 is 50mm so that via preceding smoke collecting chamber 23 aspiration Q1 with via The ratio between aspiration Q2 of oil smoke suction inlet 25 is 2:1.

Axial flow blower 5 is arranged in first partition 3.

Speed probe is not shown in figure, and is arranged on axial flow blower 5, for detecting the rotating speed of axial flow blower, electric signal Connect the control circuit (not shown) of range hood.

When the range hood works, oil smoke caused by culinary art is under the action of centrifugal blower, about 1/3rd oil smoke Enter the cavity of resorption of exhaust fume collecting hood via oil smoke suction inlet 25, the epicoele of exhaust fume collecting hood is then entered via through-hole, and then after sequentially entering Second suction inlet of smoke collecting chamber and centrifugal blower, is discharged；About 2/3rds oil smoke enters centrifugal blower via preceding smoke collecting chamber The second suction inlet be discharged.

When kitchen ventilator works, during axial flow blower passive rotation, speed probe passes the rotating speed of the axial flow blower detected Control circuit is passed, control circuit adjusts the rotating speed of axial flow blower according to presetting, so as to ensure preceding smoke collecting chamber and rear collection cigarette The intake of chamber is in preferably setting state of value, promotion air inlet balance.

Range hood in the present embodiment is carried out to the comparison of suction effect with conventional range hood.

Conventional range hood is only smoke collecting chamber, and oil guide plate is tabular, is not provided with oil smoke suction inlet；And opening oil After smoke machine, flow shows that the present embodiment is consistent with the parameter of conventional range hood with pressure detecting system.

Under identical operating mode and external condition, in two similary distances of kitchen ventilator homonymy, same location setting is the same as a batch The secondary small wind turbine of interference, interferes fume-exhausting environment, and the size of interference air-flow is controlled by adjusting small wind turbine supply voltage.

Under noiseless situation, two range hoods have preferable smoke absorption effect, when being gradually increased annoyance level, often There is fumes escaping phenomenon in the case where interfering small wind turbine 3v voltages in rule range hood；And the range hood in the present embodiment is in 4.5v Just start to run cigarette under interference voltage.

This explanation, under equal blower fan system behavior pattern, the range hood of the utility model has more excellent suction Oil smoke effect, and rational the distance between air inlet ratio and upper and lower air inlet so that this patent can realize large and small oil Double excellent absorption effects of cigarette.

Claims (9)

1. a kind of range hood, including being mounted therein with the cabinet (1) of centrifugal blower (4) and being connected to below the cabinet (1) Exhaust fume collecting hood (2), be formed with smoke collecting chamber between cabinet (1) and exhaust fume collecting hood (2), the centrifugal blower (4), which has, connects the collection The first suction inlet and the second suction inlet of smoke chamber, the exhaust fume collecting hood (2) is including left and right side plate (21) and is connected to left and right side The oil guide plate (22) being obliquely installed between plate (21)；

It is characterized in that：

First partition (3), institute are connected between the upper edge of the oil guide plate (22) and the spiral case (43) of the centrifugal blower (4) It states first partition (3) and the smoke collecting chamber is divided into preceding smoke collecting chamber (23) and rear smoke collecting chamber (24), and will across the smoke collecting chamber The first suction inlet (41) and the second suction inlet (42) of the centrifugal blower are kept apart；

The preceding smoke collecting chamber (23) connects the first suction inlet (41) of the centrifugal blower, it is described after described in smoke collecting chamber (24) connection The inner cavity of exhaust fume collecting hood and second suction inlet (42)；

The interior intracavitary of the exhaust fume collecting hood (2), which is additionally provided with, is divided into the inner cavity of the exhaust fume collecting hood the of epicoele (28) and cavity of resorption (29) Two partition boards (6), the second partition (6) be equipped with axial flow blower (5), the axial flow blower (5) rear air inlet connection described in Epicoele (28), the advance air port of axial flow blower (5) connect the cavity of resorption；

The middle part of the oil guide plate (22) is equipped with the cavity of resorption for connecting the exhaust fume collecting hood close to the lower edge position of oil guide plate (22) (29) oil smoke suction inlet (25)；

For detecting the control circuit of the speed probe electric signal of the axial flow blower (5) connection range hood.

2. range hood according to claim 1, it is characterised in that be additionally provided with and connected on described on the second partition (6) The through-hole (61) of chamber (28) and cavity of resorption (29).

3. range hood according to claim 1 or 2, it is characterised in that via the aspiration Q1 of the preceding smoke collecting chamber (23) With being 1~3 via described the ratio between aspiration Q2 of smoke collecting chamber (24) afterwards:1.

4. range hood according to claim 3, it is characterised in that the oil smoke suction inlet (25) and the smoke collecting chamber it Between vertical distance >=300mm.

5. range hood according to claim 4, it is characterised in that the front-end edge of the left and right side plate (21) externally protrudes out in (22) 30~100mm of oil guide plate；The part and the surface of the oil guide plate (22) of left and right side plate (21) evagination are formed Collect cigarette slot (26).

6. range hood according to claim 5, it is characterised in that the inlet face of the oil smoke suction inlet (25) with it is described The inlet face of smoke collecting chamber is mutually perpendicular to.

7. range hood according to claim 6, it is characterised in that the ratio between length and width of the oil smoke suction inlet (25) is 8 ~15:1.

8. range hood according to claim 7, it is characterised in that the length of the oil smoke suction inlet (25) for 400~ 600mm。

9. range hood according to claim 8, it is characterised in that the width of the collection cigarette slot (26) is 30~80mm.