CN207279732U - A kind of range hood - Google Patents

Abstract

A kind of range hood, including cabinet and the exhaust fume collecting hood being connected to below cabinet are the utility model is related to, is smoke collecting chamber between cabinet and exhaust fume collecting hood；The oil guide plate being connected between the left and right side plate of exhaust fume collecting hood is obliquely installed；The first oil smoke inlet hole and the second oil smoke inlet hole are interval with Oil Guide, the first axial flow blower and the second axial flow blower are respectively equipped with the first oil smoke inlet hole and the second oil smoke inlet hole；The surface of oil guide plate is equipped with the first temperature sensor corresponding to the first axial flow blower and the second temperature sensor corresponding to the second axial flow blower；First axial flow blower, the second axial flow blower, the first temperature sensor connect controller with the equal electric signal of second temperature sensor；It is characterized in that the limit assembly that the rotation of its fan blade can be limited for being in the axial flow blower under off position is additionally provided with the exhaust fume collecting hood.

Description

A kind of range hood

Technical field

It the utility model is related to range hood field.

Background technology

CN201610905111.6 is disclosed《A kind of range hood》, including cabinet and the collection cigarette that is connected to below cabinet Cover, the cabinet is interior to be equipped with centrifugal blower, and the exhaust fume collecting hood is equipped with the air inlet for the inner cavity for connecting the cabinet；Its feature exists In the centrifugal blower be Double suction type centrifugal wind motor；The exhaust fume collecting hood includes mutually independent first cavity and the second cavity, institute State air inlet and connect first cavity, first cavity connects the advance air port of the centrifugal blower；Second cavity The inclined-plane to turn forward from bottom to top is extended downwardly and had, left side axial flow blower and right-hand axis stream are interval with the inclined-plane Wind turbine, be equipped with second cavity partition plate second cavity is divided into it is corresponding left logical with the left side axial flow blower Road and with the corresponding right passage of the right side axial flow blower, the left passage and second airflow channel connect it is described from The rear air inlet of heart wind turbine.And temperature-detecting device is equipped with, judges whether the left and right sides has kitchen range work, when side works When, the axial flow blower set on correspondence position kitchen ventilator is opened, improves the effluent amount, and then improve smoke absorption effect.This application Kitchen range are unilateral work when, kitchen ventilator flow can be efficiently used, improve smoke absorption effect, caused by less external air flow disturbance Race cigarette problem, but axial flow blower not active when, the fan blade of axial flow blower can be under the action of external air flow by turn It is dynamic, disturb the normal suction of range hood.

The content of the invention

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 axis The interference to oil smoke air-flow caused by flow fan passive rotation is so as to reach default suction effect range hood.

Technical solution is used by the utility model solves above-mentioned technical problem：The range hood, including cabinet and company The exhaust fume collecting hood being connected on below the cabinet, is smoke collecting chamber between cabinet and exhaust fume collecting hood；It is connected to the left and right side plate of the exhaust fume collecting hood Between oil guide plate be obliquely installed；The oil guide plate is equipped with oil smoke suction inlet, and the oil smoke suction inlet is equipped with axial flow blower；

It is characterized in that it is additionally provided with the exhaust fume collecting hood for that can be limited in the case where the axial flow blower is in off position The limit assembly that its fan blade rotates.

Limit assembly in above-mentioned each scheme can have various structures, and preferably described limit assembly includes driving motor, tooth Wheel, limiting plate and guide plate；The output shaft of the driving motor is drivingly connected the gear；One ora terminalis of the limiting plate is equipped with The engaging tooth being meshed with the gear, is connected with limit shaft on the limiting plate；The guide plate is equipped with pilot hole, described Limit shaft is contained in the pilot hole, and the other end of the limit shaft is connected with baffle, and the baffle can be in the driving electricity Under the driving of machine contradict first axial flow blower, the second axial flow blower impeller center seat on.

For convenience of control, preferably described driving motor electric signal connection controller.

Alternatively, it can also be：The limit assembly includes electromagnet, first axial flow blower and the second axis stream wind The fan blade of machine is connected on fan blade shell, and the fan blade shell is ferricrete；The electromagnet is to the fan blade shell.

For convenience of control, preferably described electromagnet electric signal connection controller.

Axial flow blower in above-mentioned each scheme can be one, and preferably, the oil smoke suction inlet includes spaced First oil smoke inlet hole and the second oil smoke inlet hole；

Accordingly, the axial flow blower also has two, including is separately positioned on the first oil smoke inlet hole and the second oil First axial flow blower and the second axial flow blower on cigarette inlet hole.

The design of two axial flow blowers, can start corresponding axial flow blower, so as to change oil suction according to actual conditions The negative pressure of smoke machine both sides, obtains more preferable suction effect.

It is preferred that first axial flow blower connects the controller with the equal electric signal of the second axial flow blower, to facilitate certainly Dynamic control.

Compared with prior art, range hood provided by the utility model is provided with axial flow blower on oil guide plate, can Start axial flow blower as needed and aspirate oil smoke from bottom, suction force is big, can effectively avoid running cigarette, and the design energy of limit assembly It is enough to be completely fixed axial flow blower when not starting axial flow blower, the axial flow blower caused by extraneous wind-force is avoided by turn It is dynamic, so as to avoid the disturbance to oil smoke caused by axial flow blower passive rotation so that range hood can be performed clearly respectively Action command, obtains default preferably suction effect.

Brief description of the drawings

Fig. 1 is the schematic perspective view of 1 assembling structure of the utility model embodiment；

Fig. 2 is that the schematic perspective view after cabinet is removed in the utility model embodiment 1；

Fig. 3 is that the schematic perspective view after cabinet and oil guide plate is removed in the utility model embodiment 1；

Fig. 4 is 1 axis flow fan of the utility model embodiment and the schematic perspective view of limit assembly assembling structure；

Fig. 5 is that Fig. 2 removes the decomposition diagram after right plate；

Fig. 6 is the schematic perspective view after 2 left plate of the utility model embodiment decomposes；

Fig. 7 is 2 axis flow fan of the utility model embodiment and the schematic perspective view of limiting device assembling structure.

Embodiment

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

As shown in Figures 1 to 5, which includes：

Cabinet 1, is mounted therein with centrifugal blower (not shown)；

Exhaust fume collecting hood 2, is connected to the lower section of cabinet 1, is smoke collecting chamber between cabinet 1 and exhaust fume collecting hood 2.The left and right side of exhaust fume collecting hood 2 The oil guide plate 24 being obliquely installed is connected between plate 15, collection cigarette is formed between the upper edge of oil guide plate 24 and the lower port of cabinet 1 Chamber 11.The inner cavity connection smoke collecting chamber 11 of exhaust fume collecting hood 2.

The first oil smoke inlet hole 21 and the second oil smoke inlet hole 22, the first oil smoke inlet hole 21 are interval with oil guide plate 24 With the first axial flow blower 31 and the second axial flow blower 32 are separately installed with the second oil smoke inlet hole 22；Under working status, first 31 and second axial flow blower 32 of axial flow blower is respectively to two cooking stove (not shown)s.

First axial flow blower 31 connects controller (not shown) with 32 equal electric signal of the second axial flow blower.

Limit assembly 4, there is two, is arranged in exhaust fume collecting hood 2, is respectively used to the first axial flow blower 31 of limitation and the second axis Flow fan 32 rotates.The structure of two limit assemblies 4 is identical, includes：

Drive motor 41, gear 42, limiting plate 43 and guide plate 44；Wherein, the output shaft of motor 41 is driven to be drivingly connected Gear 42；One ora terminalis of limiting plate 43 is equipped with the engaging tooth being meshed with gear 42, and limit shaft 45 is connected with limiting plate 43；Lead Pilot hole 46 is equipped with to plate 44, limit shaft 45 is contained in pilot hole 46, and the other end of limit shaft 45 is connected with baffle 47, gear Plate 47 can driving motor 41 driving under contradict the first axial flow blower 31, the second axial flow blower 32 impeller center seat on； Drive 4 electric signal of motor connection controller.

The operation principle of the range hood is described as follows：

Controller first controls limit assembly 4 corresponding to the first axial flow blower 31 when starting the first axial flow blower 31 Driving motor 41 works, and makes the conflict for the impeller center seat that baffle 47 departs to the first axial flow blower 31；Then first axle is started Flow fan；Part oil smoke is sucked from the first axial flow blower enters smoke collecting chamber via exhaust fume collecting hood inner cavity, and part oil smoke is directly entered collection Smoke chamber, is drained by centrifugal blower；

Controller first controls the second limit assembly corresponding to the second axial flow blower 32 when starting the second axial flow blower 32 4 driving motor 41 works, and the baffle 47 of the limit assembly is departed from the conflict of the impeller center seat to the second axial flow blower 32； Then the second axial flow blower is started.

If only centrifugal blower works, when axial flow blower does not work, then controller does not start the driving electricity in limit assembly Machine, at this time the fan blade of axial flow blower be limited component and wale, will not be rotated with external air flow, avoid axial flow blower with extraneous gas Flow perturbation phenomenon caused by flow rotation so that oil smoke can be sucked away by default smooth channel.

Embodiment 2

As shown in Figures 6 and 7, the limit assembly in the present embodiment is electromagnet 48.

The fan blade of first axial flow blower 31 and the second axial flow blower 32 is both connected on respective fan blade shell 33, fan blade shell 33 For ferricrete.

Electromagnet 48 to fan blade shell 33 to setting, and electric signal connection controller, by the energization of controller control electromagnet Whether.

Remaining content is same as Example 1.

Claims (7)

1. a kind of range hood, including cabinet (1) and the exhaust fume collecting hood (2) that is connected to below the cabinet (1), cabinet (1) and collection It is smoke collecting chamber between petticoat pipe (2)；The inclination of the oil guide plate (24) between the left and right side plate (15) of the exhaust fume collecting hood (2) is connected to set Put；The oil guide plate (24) is equipped with oil smoke suction inlet, and the oil smoke suction inlet is equipped with axial flow blower；

It is characterized in that it is additionally provided with the exhaust fume collecting hood (2) for it can be limited in the case where the axial flow blower is in off position The limit assembly (4) that fan blade rotates.

2. range hood according to claim 1, it is characterised in that the limit assembly (4) include driving motor (41), Gear (42), limiting plate (43) and guide plate (44)；The output shaft of the driving motor (41) is drivingly connected the gear (42)； One ora terminalis of the limiting plate (43) is equipped with the engaging tooth being meshed with the gear (42), is connected with the limiting plate (43) Limit shaft (45)；The guide plate (44) is equipped with pilot hole (46), and the limit shaft (45) is contained in the pilot hole (46) Interior, the other end of the limit shaft (45) is connected with baffle (47), and the baffle (47) can be in the drive of the driving motor (41) It is dynamic lower contradict the first axial flow blower (31), the second axial flow blower (32) impeller center seat on.

3. range hood according to claim 2, it is characterised in that the driving motor electric signal connection controller.

4. range hood according to claim 3, it is characterised in that the limit assembly (4) includes electromagnet (48), institute The fan blade for stating the first axial flow blower (31) and second axial flow blower (32) is connected on fan blade shell (33), the fan blade shell (33) it is ferricrete；The electromagnet (48) is to the fan blade shell (33).

5. range hood according to claim 4, it is characterised in that the electromagnet electric signal connects controller.

6. according to the range hood described in claim 1 to 5 any claim, it is characterised in that the oil smoke suction inlet includes Spaced first oil smoke inlet hole (21) and the second oil smoke inlet hole (22)；

Accordingly, the axial flow blower also has two, including is separately positioned on the first oil smoke inlet hole (21) and the second oil First axial flow blower (31) and the second axial flow blower (32) on cigarette inlet hole (22).

7. range hood according to claim 6, it is characterised in that first axial flow blower (31) and second axis Flow fan (32) electric signal connects the controller.