CN203771507U - Range hood and main engine structure thereof - Google Patents
Range hood and main engine structure thereof Download PDFInfo
- Publication number
- CN203771507U CN203771507U CN201420147564.3U CN201420147564U CN203771507U CN 203771507 U CN203771507 U CN 203771507U CN 201420147564 U CN201420147564 U CN 201420147564U CN 203771507 U CN203771507 U CN 203771507U
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- Prior art keywords
- range hood
- casing
- fixed head
- impeller
- oil smoke
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Abstract
The utility model discloses a range hood and a main engine structure of the range hood. The main engine structure comprises a fixed plate, an outlet connection part which is fixedly connected with the fixed plate and at least one wind turbine set, wherein each wind turbine set comprises an enclosure, an impeller and a motor; the enclosure is fixedly connected with the fixed plate and a cooking fume suction opening is formed in the bottom side face of the enclosure; the impeller is vertically arranged in the enclosure; the motor is fixedly connected with the fixed plate; a driving shaft of the motor is connected with a connection shaft of the impeller; the fixed plate is provided with at least one second opening which is communicated with the cooking fume suction opening of each enclosure. According to the main engine structure, the cooking fume suction opening is formed in the bottom side face of the enclosure so that the range hood has the advantages of complete cooking fume suction and good cooking fume suction effects; the main engine structure also has the advantages of simplicity and small size, and is beneficial for saving the manufacturing cost and the like.
Description
Technical field
The utility model relates to a kind of range hood, especially relates to a kind of range hood and main machine structure thereof with better range hood effect.
Background technology
Range hood claims again smoke exhaust ventilator, is a kind of kitchen appliance that purifies kitchen environment.It is arranged on the top of cooking stove in kitchen, the harmful oil smoke producing can be taken away rapidly in the refuse of cooking stove burning and cooking process, outside discharge chamber, to reduce indoor pollution, to purify the air of a room, and has gas defence, explosion-proof safety guarantee effect.
Range hood is to utilize principle of hydrodynamics to carry out work, by being arranged on the centrifugal fan fume exhaust of range hood inside, and uses strainer filtering part fat particles.Centrifugal fan comprises spiral case, be arranged on the motor that in spiral case, impeller and impeller rotate.When vane rotary, at blower fan center generation negative-pressure sucking, the oil smoke of lampblack absorber below is sucked to blower fan, after blower fan accelerates, by spiral case, collected, guide outside discharge chamber.
Such as, Chinese patent CN201120427558.X proposes a kind of side-draught range hood volute installation structure, housing comprises horizontal top plate and vertical backboard, spiral case is placed on housing middle part and spiral case turns forward and be angle with horizontal top plate, vertical backboard places, the air outlet edge at spiral case top is fixedly connected with horizontal top plate by screw, and spiral case bottom is by being connected with vertical backboard screw; And spiral case front side is provided with exhausting hole, housing is provided with over against the smoking-hole in exhausting hole, and spiral case front side and vertical plane are angle and turn forward.
And for example, Chinese patent CN201110027636.1 proposes a kind of range hood with air-suction double-injection acceleration function, there is cabinet and exhaust fume collecting hood, in cabinet, be provided with spiral case, in spiral case, be provided with impeller and motor, in the oil smoke outlet at spiral case top, be connected with outlet housing, exhaust fume collecting hood is provided with oil smoke entrance, and spiral case is provided with advance air port and rear air inlet.That is, the cooking stove of range hood below of take is object of reference, on two relatively perpendicular sides of spiral case, is respectively equipped with advance air port and rear air inlet, and during impeller work, by the tobacco tar of range hood below, the wind deflector by edge under spiral case enters spiral case
There is following technological deficiency in the range hood of prior art:
1, in existing range hood, the cooking stove of spiral case under is relatively erect or be arranged in housing with an angle of inclination, exhausting hole (or air inlet) on spiral case is not the cooking stove facing under range hood, but and between the cooking stove under range hood, be an angle of inclination and be even positioned on the perpendicular side on spiral case, thereby oil smoke needs can be sucked into spiral case through the flow path of longer distance under negative-pressure sucking, the flow path of longer distance has slowed down the air-flow rate of climb, can not reach effective suction, thereby cause smoke pumping effect poor.
2, because spiral case is erect or is arranged in housing with an angle of inclination, and the size of spiral case is larger, causes the enclosure volume of range hood larger, need to take larger space during installation, and is unfavorable for saving manufacturing cost, packing and cost of transportation.
Utility model content
For overcoming the defect of prior art, the utility model proposes a kind of simple in structure, realize the lower and smoke absorption effect of cost preferably range hood and main machine structure thereof.
The utility model adopts following technical scheme to realize: a kind of main machine structure of range hood, comprises fixed head, is fixedly connected with outlet connecting portion and at least one wind wheel unit of fixed head; Wherein, each wind wheel unit includes: be fixedly connected with the casing of fixed head, the oil smoke suction inlet that provides oil smoke to suck is provided the bottom side of this casing; Longitudinally be arranged on the impeller in casing; Be fixedly connected with the motor of fixed head, this motor driving shaft is connected with the connecting axle of impeller; And fixed head is provided with respectively at least one second opening that the oil smoke suction inlet with each casing is connected.
Wherein, outlet connecting portion comprise be successively connected go out wind scoop, sealing ring, non-return valve block and check-valves circle, this lower end that goes out wind scoop is connected with fixed head.
Wherein, casing is cylindrical shape or taper shape.
Wherein, be arranged on the detachable protective screen of the oil smoke suction inlet of casing, this protection network is fixedly connected with the oil smoke suction inlet of casing by dividing plate.
Wherein, impeller is centrifugal type wind wheel.
In addition, the utility model also discloses a kind of range hood and comprises case and be arranged on the main machine structure in case, and this main machine structure comprises fixed head, is fixedly connected with outlet connecting portion and at least one wind wheel unit of fixed head; Wherein, each wind wheel unit includes: be fixedly connected with the casing of fixed head, the oil smoke suction inlet that provides oil smoke to suck is provided the bottom side of this casing; Longitudinally be arranged on the impeller in casing; Be fixedly connected with the motor of fixed head, this motor driving shaft is connected with the connecting axle of impeller; And fixed head is provided with respectively at least one second opening that the oil smoke suction inlet with each casing is connected.
Compared with prior art, the utlity model has following beneficial effect:
The main machine structure of the range hood 1, the utility model proposes, because oil smoke suction inlet is set to the bottom side of casing, the bottom side of this casing directly faces the cooking stove of range hood below, rather than similar existing range hood is equally arranged on oil smoke suction inlet the side of spiral case, thereby make oil smoke from more directly, more the oil smoke suction inlet from casing bottom side of short path directly enters smoke exhaust ventilator, the motion path of oil smoke is shorter and unobstructed, be presented as that suction is large, fume-exhausting is comparatively thorough, smoke absorption effect is better, and operating efficiency is higher.
2, the utility model has improved the worm frame in existing range hood, by erectting before the spiral case arranging, be adopted as cylindrical shape or conical casing, and impeller is longitudinally arranged in casing, thereby the size of casing is slightly larger than the size of impeller, and then make the monnolithic case size of main machine structure of range hood less, for small size and for the range hood under tight space environment, provide realization condition on the one hand, on the other hand because the overall dimensions of range hood is less, manufactured materials that can less range hood, reduce manufacturing cost, reduce packing and the cost of transportation of range hood.
3, the utlity model has simple in structure, realize easy advantage.
Accompanying drawing explanation
Fig. 1 is the decomposing schematic representation of the main machine structure of the utility model range hood.
Fig. 2 is the decomposing schematic representation of Fig. 1 middle outlet connecting portion.
Fig. 3 is the three-dimensional assembling structure schematic diagram of Fig. 1.
Fig. 4 is the cross-sectional view of Fig. 3.
Fig. 5 A and Fig. 5 B are respectively schematic perspective view and the generalized sections of side extraction cooking fume extractor.
Fig. 6 A and Fig. 6 B are respectively schematic perspective view and the generalized sections that T-shaped range hood is inhaled on top.
Fig. 7 A and Fig. 7 B are respectively schematic perspective view and the generalized sections that tower range hood is inhaled on top.
Fig. 8 A and Fig. 8 B are respectively schematic perspective view and the generalized sections that camber range hood is inhaled on top.
The specific embodiment
Shown in Fig. 1～Fig. 4, the main machine structure of the range hood the utility model proposes comprises: at least one wind wheel unit (Fig. 1～Fig. 4 only draws a wind wheel unit), each wind wheel unit includes as cylindrical shape or conical casing 1, on the top side face of this casing 1 and bottom side, be respectively equipped with upper shed and oil smoke suction inlet, longitudinally (be longitudinally take the direction blade of impeller 2 be with reference to) is arranged on the impeller 2 in casing 1, the general centrifugal type wind wheel that adopts of this impeller 2, the motor 3 that connects impeller 2, the driving shaft end of this motor 3 is through fixing with nut 5 after the connecting axle at impeller 2 middle parts, with the fixed head 4 that in each wind wheel unit, casing 1 upper shed is fixedly connected with, the upper end of each motor 3 is fixed on fixed head 4, this fixed head 4 is provided with provides at least one first opening 41 that on motor 3, end passes, on fixed head 4, be also provided with a plurality of at least one second opening 42 being connected with the oil smoke suction inlet of each casing 1 bottom side respectively so that impeller 2 while rotating blade drive oil smoke to move upward from the second opening 42, be fixed on the outlet connecting portion 6 on fixed head 4, this outlet connecting portion 6 comprise be successively connected go out wind scoop 61, sealing ring 62, non-return valve block 63 and check-valves circle 64, the lower end that goes out wind scoop 61 is fixed on fixed head 4, and check-valves circle 64 is fixed on out the upper end of wind scoop 61 by non-return valve block 63 and sealing ring 62.In addition, at the oil smoke suction inlet of casing 1 bottom side, be provided with dismountable protection network 7, this protection network 7 is fixedly connected with the oil smoke suction inlet of casing 1 by dividing plate 8.
During motor 3 work, impeller 2 is rotated, below casing 1, form negative pressure, thereby make oil smoke rise and enter to casing 1 from the oil smoke suction inlet acceleration of casing 1 bottom side, and rotate and move upward with impeller 2, from the second opening 42 of fixed head 4, enter out wind scoop 61, then enter the oil-smoke expulsion pipe being connected with check-valves circle 64.
When main machine structure is only provided with a wind wheel unit, also just only have an impeller 2 and a motor 3 that drives this impeller 2; While being provided with 2 or more wind wheel unit in main machine structure, each wind wheel unit all has an impeller 2 and a motor 3 that drives this impeller 2 separately, during work, each wind wheel unit is all worked simultaneously, and last oil smoke all enters oil-smoke expulsion pipe by outlet connecting portion 6.
Main machine structure due to the range hood the utility model proposes, oil smoke enters smoke exhaust ventilator from the oil smoke suction inlet of casing 1 bottom side, and the motion path of oil smoke is shorter and unobstructed, is presented as that suction is large, fume-exhausting is comparatively thorough, smoke absorption effect is better, and operating efficiency is higher.
The main machine structure the utility model proposes, all can be for the range hood of existing any working method or surface structure form.Below provided the range hood of 4 kinds of different contour structures, as example but not as limit, for further illustrating structure of the present utility model and operation principle.
Side extraction cooking fume extractor as shown in Fig. 5 A and Fig. 5 B, it comprises case and is arranged on the main machine structure in case, case comprises horizontally disposed top board 101, the backboard 102 being connected with a side of top board 101, be fixed on top board 101 and backboard 102 two is approximately leg-of-mutton side plate 103 and is arranged on top board 101 tops and is connected successively and surround 3 or 4 blocks of coaming plates 105 of a squarish, and in main frame, fixed head 4 is fixedly linked with top board 101, and backboard 102 is directly fixed on wall or by hook and waits parts and wall to fix.Going out wind scoop 61 can expose from top board 101 tops, and is connected with oil-smoke expulsion pipe by check-valves circle 64.Main machine structure is arranged in case, the oil smoke suction inlet of main machine structure face top board 101 under cooking stove, thereby there is good range hood effect.
T-shaped range hood is inhaled on top as shown in Figure 6 A and 6 B, it comprises case and is arranged on the main machine structure in case, case comprises horizontally disposed base plate 104, is arranged on base plate 104 tops and is connected and surrounds 3 or 4 blocks of coaming plates 105 of a squarish successively, makes the monnolithic case of range hood be approximately an inverted T shape.Main machine structure is fixed between base plate 104 and polylith coaming plate 105, by a coaming plate 105 wherein, is directly or indirectly fixed on wall, by check-valves circle 64, is connected with oil-smoke expulsion pipe.Under base plate 104, be cooking stove, like this, the oil smoke suction inlet of casing 1 bottom side faces the cooking stove of below, thereby has good range hood effect.
Tower range hood is inhaled on top as shown in Fig. 7 A and Fig. 7 B, the horizontally disposed base plate 104 of its case, 3 swash plates that are obliquely installed with an angle 106 of wherein 3 continuous sides of connecting bottom board 104 respectively, the coaming plate 105 being connected with every swash plate 106 1 sides respectively, thus the pyramidal structure that outward appearance is similar to pagoda formed.Fig. 8 A and Fig. 8 B are respectively that camber range hood is inhaled on top, and its structure is the most approaching with the top T-shaped range hood of suction, and difference is that base plate 104 is for camber structure.
Above-mentioned these 4 kinds of providing are the longest common, in most popular range hood, the main machine structure the utility model proposes is all arranged in case, and oil smoke suction inlet (being the bottom side of casing 1) faces the cooking stove of range hood below, the oil smoke that cooking stove produces can more directly enter in smoke exhaust ventilator with short path more, and from casing 1, accelerate the last oil-smoke expulsion pipe being connected with check-valves circle 64 that then enters of rising under impeller 2 rotary actions, thereby compare existing range hood, the utlity model has fume-exhausting comparatively thorough, smoke absorption effect is better, operating efficiency is higher.
These several range hoods that above-described embodiment provides, each case has all only drawn a main machine structure.Certainly, to those skilled in the art, can according to actual needs, two even more main machine structures be set in every range hood.Such as, while two main machine structures being set in a range hood, the outlet connecting portion 6 of considering each main machine structure need to be connected with oil-smoke expulsion pipe, in order to simplify, install and manufacturing cost, two main machine structures can be shared to a fixed head 4 and an outlet connecting portion 6, below same fixed head 4, be fixedly connected with side by side motor 3 separately in two main machine structures, and 4 of fixed heads are provided with an outlet connecting portion 6.When work, two main machine structures are worked simultaneously, and oil smoke all enters oil-smoke expulsion pipe from outlet connecting portion 6, thereby further improves fume-exhausting efficiency.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (10)
1. a main machine structure for range hood, is characterized in that, comprises fixed head, is fixedly connected with outlet connecting portion and at least one wind wheel unit of fixed head;
Wherein, each wind wheel unit includes: be fixedly connected with the casing of fixed head, the bottom side of this casing is provided with oil smoke suction inlet; Longitudinally be arranged on the impeller in casing; Be fixedly connected with the motor of fixed head, this motor driving shaft is connected with the connecting axle of impeller;
And fixed head is provided with respectively at least one second opening that the oil smoke suction inlet with each casing is connected.
2. the main machine structure of range hood according to claim 1, is characterized in that, outlet connecting portion comprise be connected successively go out wind scoop, sealing ring, non-return valve block and check-valves circle, this lower end that goes out wind scoop is connected with fixed head.
3. the main machine structure of range hood according to claim 1, is characterized in that, casing is cylindrical shape or taper shape.
4. the main machine structure of range hood according to claim 1, is characterized in that, also comprises: be arranged on the detachable protective screen of the oil smoke suction inlet of casing, this protection network is fixedly connected with the oil smoke suction inlet of casing by dividing plate.
5. the main machine structure of range hood according to claim 1, is characterized in that, impeller is centrifugal type wind wheel.
6. a range hood, comprises case and is arranged on the main machine structure in case, it is characterized in that, this main machine structure comprises fixed head, is fixedly connected with outlet connecting portion and at least one wind wheel unit of fixed head;
Wherein, each wind wheel unit includes: be fixedly connected with the casing of fixed head, the bottom side of this casing is provided with oil smoke suction inlet; Longitudinally be arranged on the impeller in casing; Be fixedly connected with the motor of fixed head, this motor driving shaft is connected with the connecting axle of impeller;
And fixed head is provided with respectively at least one second opening that the oil smoke suction inlet with each casing is connected.
7. range hood according to claim 6, is characterized in that, outlet connecting portion comprise be connected successively go out wind scoop, sealing ring, non-return valve block and check-valves circle, this lower end that goes out wind scoop is connected with fixed head.
8. range hood according to claim 6, is characterized in that, casing is cylindrical shape or taper shape.
9. range hood according to claim 6, is characterized in that, also comprises: be arranged on the detachable protective screen of the oil smoke suction inlet of casing, this protection network is fixedly connected with the oil smoke suction inlet of casing by dividing plate.
10. range hood according to claim 6, is characterized in that, impeller is centrifugal type wind wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420147564.3U CN203771507U (en) | 2014-03-25 | 2014-03-25 | Range hood and main engine structure thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420147564.3U CN203771507U (en) | 2014-03-25 | 2014-03-25 | Range hood and main engine structure thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203771507U true CN203771507U (en) | 2014-08-13 |
Family
ID=51288694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420147564.3U Expired - Fee Related CN203771507U (en) | 2014-03-25 | 2014-03-25 | Range hood and main engine structure thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203771507U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103851672A (en) * | 2014-03-25 | 2014-06-11 | 代颖堂 | Range hood and principal machine structure thereof |
| CN104676697A (en) * | 2015-03-09 | 2015-06-03 | 广东美的厨房电器制造有限公司 | Exhaust hood |
-
2014
- 2014-03-25 CN CN201420147564.3U patent/CN203771507U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103851672A (en) * | 2014-03-25 | 2014-06-11 | 代颖堂 | Range hood and principal machine structure thereof |
| CN104676697A (en) * | 2015-03-09 | 2015-06-03 | 广东美的厨房电器制造有限公司 | Exhaust hood |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140813 Termination date: 20200325 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |