CN2200772Y - Wall hanging cooker hood - Google Patents

Abstract

The utility model relates to a wall hanging cooking-fume exhauster, which comprises two centrifugal fans, and is mainly composed of a machine shell, a bent plate, an arc plate, a chassis, a motor, an impeller, a joint and a chimney. The back face of the machine body leans a wall. The mounting position is lower. An air inlet is close to a fire hole. The cooking fume can be directly sucked by using a forced air suction way, causing the cooking fume to have no raising process and no diffusion chance.

Description

Wall hanging cooker hood

The utility model is a kind of induced-draft fan.Existing induced-draft fan all is to be overhung on the table, air inlet has big distance from boiler face, and the oil smoke ascension that cooking produced is near the air inlet time, and its diffusion has exceeded the effective air-breathing scope of induced-draft fan, therefore oil smoke thoroughly can't be got rid of, smoke extract rate can only be kept about 70%.When cooking cooked food below this " hanging type " induced-draft fan, kitchener person's height is if be lower than the fuselage position, and head will stretch among the smog of rising frequently, must suck oil smoke; Kitchener person is if be higher than the fuselage position, and health then can't lean forward, and the gesture that must become to come out boldly and hold head high feels out of it, and even so, head or upper body also might hit body, therefore very inconvenience.In addition, because fuselage is overhung at the space in kitchen, make the people feel oppressive, particularly in not too spacious kitchen, the sense of constraining is especially obvious.This type of induced-draft fan is positioned at directly over the fire door because of air inlet, even the device of collecting tobacco tar is arranged, if do not clean for a long time, along with also splashing in the pot in the tobacco tar inside and outside the body.

The purpose of this utility model provides a kind of wall-hanging induced-draft fan, and it can bring up to 100% with smoke extract rate, and can not make the people produce the space sense of depression, has also thoroughly avoided the phenomenon of oil dripping in the pot.

The wall-hanging induced-draft fan that the utility model is released is because back side Kao Qiang, the installation site is low, and air inlet is near from fire door, and mandatory air-breathing sphere of action can be extracted out cooking the oil smoke that cooked food produces on fire door is tight just at once, and do not influence the flare of fire door, smoke extract rate reaches 100%.Oil smoke is because of no nature ascension process, can also can not made the people feel constraining of space by kitchener person's posture, also do not have tobacco tar and splashes in the pot even do not clean for a long time.This mounting means has also saved the lighting device that " hanging type " induced-draft fan must be set up.Although twin furnace mouth gas furnace can be put two frying pans simultaneously, can only use one usually during cooking.When discharging fume with two air channels " hanging type " induced-draft fan, two blower fans must an air channel " hanging type " during the induced-draft fans smoke evacuation, and two blower fans smoke extract rate that must turn round together just can reach 70%.If using wall-hanging induced-draft fan instead only need start a corresponding blower fan and just can thoroughly get rid of smog.Therefore 50% noise that not only economizes on electricity also will descend 50%.Wall-hanging induced-draft fan is owing to be mandatory air-breathing, and smog directly enters air inlet, and no diffusion chance can not contact with fuselage surface, so fuselage surface do not have the formation of tobacco tar, and the surface of this machine also is easy to clean.In addition, the area of this machine and thickness all are significantly smaller than " hanging type " induced-draft fan.Wall-hanging induced-draft fan is because air inlet can be near evaporation source, and the direct mandatory suction of a tangential gas that evaporation source can be distributed makes the other operator of evaporation source exempt from the infringement of pernicious gas, therefore also can be used for some laboratory or operating room.

This induced-draft fan is showed with two figure: Fig. 1 is this machine outward appearance, and Fig. 2 is this machine structure.Can find out obviously that from Fig. 1 this machine is actually the centrifugal blower of two shared chimneys that combine as a whole.Mainly (single-machine capacity is 40～50W) to this machine, impeller, joint, chimney constitute by chassis, casing, face shield, bent plate, arc plate, motor.Motor is built-in, is fixed on the chassis, is included in the body.Chassis and casing welding.Each welds arc plate and bent plate with chassis and casing.Three under-chassis stretch into the bottom surface and weld with the chassis.Electric components such as capacitor, self-con-tained unit, siren (all be omitted and draw) are housed in the space triangular in shape approximately between two blower fans.Gas-sensitive head and siren are contained on the base plate.Base plate is fixed on fuselage bottom by screw, takes base plate apart and just can electric components such as capacitor, self-con-tained unit be installed on the chassis by the opening of bottom.Switch is contained in the space on blower fan top, the right, and three buttons respectively belong to three self-lock switch that work alone (by opening, again by closing).Two blower fans about two more preceding switches of position are controlled respectively; One of back is the robot control system(RCS) switch, and button is white, and is slightly sub-translucent, double as indicator lamp and warning light, and red green two light emitting diodes are equipped with in the inside.If autocontrol switch is clicked, robot control system(RCS) is just connected power supply, green pipe energising in the button simultaneously, and button is bright, is green, and is in running order to show robot control system(RCS).In case indoor coal gas, natural gas or other poisonous gas leakage and when reaching finite concentration, self-con-tained unit is just connected motor power and siren power supply, so two blower fan entrys into service, siren begins to pipe; Meanwhile self-con-tained unit also makes green pipe outage, red pipe energising flicker, and button is also just reddened and flicker thereupon by green.After several minutes, self-con-tained unit is turned off power supply, blower fan, siren and is quit work, and button stops flicker and reverts to green.This moment, robot control system(RCS) was still in running order.If click this switch again, the robot control system(RCS) outage, the automatic control effect is eliminated, and the green pipe of button is outage simultaneously also, and button recovers true qualities.If will recover the automatic control effect, one by getting final product once more.

Blower fan in the running, the impeller of rotation is except that sending into oil smoke the chimney, its centrifugal force also can make the oil molecule in the oil smoke be attached to casing inner wall and form tobacco tar.Tobacco tar forms the back and flows to the bottom along inwall, and the oilhole through the bottom flows into oil box then.Oil box (transparent material) is bonded as one with magnet ring (rectangle, material are magnetic rubber or other magnetisable material), is adsorbed on the oilhole place, can take off easily or load onto, so that the discharge of long-pending oil and the cleaning of oil box.

This machine fuselage back side Chao Qiang is by the fixing (see figure 1) on the wall of three under-chassis screws.Each under-chassis and between the walls are lined with the cushion rubber (see figure 2) of about 2 millimeters thick.For raising the efficiency, this machine top is thicker than the bottom (see figure 2), and after installing, whole fuselage has an about natural gradient of 2 °～3 ° to tilt to boiler face, and promptly the angle a of electrical axis line and wall is about 87 °～88 ° (see figure 2)s.The joint lower end is a rectangle, and the inside has a bit of dividing plate that the joint bottom is divided into two air channels.The lower end size is consistent with the air outlet of two blower fans, and joins at air outlet place and fuselage.(see figure 1).Upper end of joint is circular, joins with chimney.The upper end of joint area equals or is slightly larger than the lower end area.Oil smoke is drawn outdoor by the number cigarette saving tube.

Main parts size

1, oil box 8, switch 15, bent plate 22, under-chassis

2, magnet ring 9, cushion rubber 16, gas-sensitive head 23, under-chassis

3, base plate 10, motor 17, arc plate 24, under-chassis

4, face shield 11, chassis 18, arc plate

5, impeller 12, cushion rubber 19, oil box

6, protecting cover 13, impeller 20, magnet ring

7, joint 14, motor 21, casing

Claims (5)

1, wall-hanging induced-draft fan, comprise two centrifugal blowers, form by chassis, casing, face shield, protecting cover, under-chassis, bent plate, arc plate, base plate, switch, motor, impeller, joint, chimney, oil box, magnet ring etc., it is characterized in that: casing and chassis welding, each welds arc plate and bent plate with chassis and casing, under-chassis and chassis welding; Motor is fixed on the chassis by screw, is included in the body; Face shield is fixed on the casing by screw, and protecting cover is contained in the face shield center; Base plate is fixed on the opening part of fuselage bottom by screw; Fuselage back side Kao Qiang is fixing on the wall by three under-chassis screws.

2, induced-draft fan as claimed in claim 1, its feature are that also oil box and magnet ring are bonded as one, are adsorbed on the oilhole place of fuselage bottom, can take off easily or load onto.

3, induced-draft fan as claimed in claim 1, its feature are that also the joint lower end is a rectangle, coincide with two fan outlets; A bit of dividing plate is arranged in the joint, the joint bottom is divided into two air channels; Joint top is circular, coincide with chimney; The upper end of joint area equals or is slightly larger than the lower end area.

4, induced-draft fan as claimed in claim 1, before its feature also is out three self-lock switch that work alone, be contained in the space on blower fan top, the right, wherein two is fan switch, two blower fans about controlling respectively, another is the robot control system(RCS) switch, its button double as indicator lamp and warning light.The opening of electric component such as capacitor, self-con-tained unit by fuselage bottom places in the space between two blower fans, is fixed on the chassis.

5, induced-draft fan as claimed in claim 1, its feature are that also this machine fuselage top is thicker than the bottom, and after installing, fuselage has an about natural gradient of 2 °～3 ° to tilt to boiler face, and promptly electrical axis line and wall have an about angle of 87 °～88 °.

Images