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CN-121993821-A - Direct-suction and direct-discharge range hood

CN121993821ACN 121993821 ACN121993821 ACN 121993821ACN-121993821-A

Abstract

The invention relates to the field of range hoods. The invention discloses a range hood, which consists of an upper part and a lower part, wherein a wind cabinet with a long neck curved surface wind channel and a sinking volute at the upper part is arranged in a shell, a main air inlet of the volute is inclined towards the rear lower part, the external space of the main air inlet of the volute towards the rear lower part is wide, the wind wheel is easy to intake, and the suction force is strong. The lower part is a fume collecting hood box body with an air inlet at the rear lower part, the left side and the right side in the air inlet box body are provided with isolation guide plates, the air flow is isolated from entering the left side space and the right side space of the box body, the influence of air flow disturbance is isolated, the air flow is guided to quickly reach the air suction area of the volute, the air flow cross section of the cavity space is large, the flow speed is low, the surface area of the cavity is large, the separation of oil smoke is easy, a half pair of transverse baffle net is arranged in the middle, the oil smoke can be further separated, the inclined wind wheel is not easy to accumulate oil, the service life of the wind wheel is effectively prolonged, the air inlet of the smoke machine can be directly observed from the position of the air outlet of the smoke machine to the inside of the smoke machine, the air flow is smoothly and unblocked, the direct suction and the direct discharge are enhanced, and the noise is reduced. Compared with the general traditional range hood structure, the range hood structure is more reasonable, the range hood can obviously improve the oil suction and smoke discharge efficiency, and the noise is reduced while the oil smoke separation is achieved. The cigarette machine is convenient to use, and each surface is concise and easy to clean and maintain. The cigarette machine has simple structure, easy production and manufacture, strong practicality and easy popularization.

Inventors

  • XU DUOQUAN
  • XU MINGFENG

Assignees

  • 许多全

Dates

Publication Date
20260508
Application Date
20241106

Claims (8)

  1. 1. A direct-sucking and direct-exhausting range hood consists of an upper part and a lower part; the upper part comprises a motor, a wind wheel, a wind cabinet, a wind cap, a circuit board and a shell, wherein the circuit board and the wind cap are arranged at the top of the shell, the wind cabinet with a long neck curved surface wind channel and a sinking volute is arranged in the shell, the motor and the centrifugal wind wheel are arranged in the volute, both sides of the volute can be used for air intake, a main air intake of the volute is inclined towards the rear lower part, the lower part comprises a platform plate frame, a cavity rear plate, a rear shell plate, a left isolation guide plate, a right isolation guide plate, a transverse baffle, a condensation baffle, a switch panel and a strip-shaped oil cup, a box body is formed by the platform plate frame, the rear shell plate, the left side plate and the right side plate, the box body is connected under the shell, the strip-shaped oil cup is hung at the bottom of the box body, the cavity rear plate, the left isolation guide plate and the right isolation guide plate are arranged in the upper part, the rectangular condensation baffle is obliquely hung in front, the strip-shaped air intake of the smoke machine is positioned at the bottom of the condensation plate, the lower section of the box body is positioned at the rear position, the front of the platform plate is a switch panel with a delay function, and the switch panel with a plum blossom switch is arranged in front.
  2. 2. The range hood according to claim 1, wherein the air cabinet is provided with a long-neck air outlet channel and is bent, the volute of the air cabinet is sunk, the axis line of the impeller in the air cabinet is inclined at an acute angle with the horizontal plane, the main air inlet of the air cabinet is inclined backwards and downwards, the bottom of the air cabinet is sunk in the range of the upper 5CM to the lower 10CM horizontally corresponding to the upper part of the platform frame, the outer space of the main air inlet of the volute in the backward and lower direction is wide, the air inlet of the wind wheel is easy, the effect similar to the operation of a submersible pump is achieved, and the suction performance is strong.
  3. 3. The range hood according to claim 1, wherein the left and right sides of the interior of the housing are provided with baffles for isolating, guiding and reinforcing the air flow from entering the left and right corners of the housing, and oil dirt is not accumulated in the left and right corners of the housing, thereby blocking the influence of disturbance of the air flow and guiding the air flow to enter the wind wheel rapidly. The air flow passes through the area smoothly without blocking, so that the smoking effect is enhanced, the noise is reduced, and the baffle also plays a role in reinforcing the box body structure.
  4. 4. The range hood according to claim 1, wherein a half-width cross-bar net is provided in the middle, the cross-bar net functions to strengthen the overall structure of the range hood, and also functions to separate part of the oil smoke, and also prevents large foreign matters from being inhaled into the wind wheel due to improper operation.
  5. 5. The range hood of claim 1 wherein a wide space is formed between the rear of the condensing plate and the air cabinet, the cross-sectional area of the air flow is large, the surface area of the cavity formed by the condensing plate and the shell is large, the air flow speed of the space is slow, and more condensed oil drops and water drops can be attached to the surface of the cavity, thereby facilitating further oil and smoke separation.
  6. 6. The range hood according to claim 1, wherein the wind wheel is obliquely arranged, each blade of the wind wheel is not horizontal at any time, oil is not easy to accumulate, the service life of the wind wheel is prolonged, the range hood has a delay function, and the influence of oil smoke on the range hood can be effectively reduced by using the delay function when the range hood is ended.
  7. 7. The range hood according to claim 1, wherein the range hood is simple in appearance and easy to clean, and after the range hood is used by a user, only the smooth surface of the range hood is wiped, disassembly and washing are not needed, if the interior is required to be cleaned, any tools are not needed, only the switch panel is required to be scratched by two hands, and then the condensation baffle is removed, so that the range hood is easy and convenient to use.
  8. 8. The range hood according to claim 1, wherein the air flow is unobstructed, the direct suction and direct discharge of the range hood is realized by the fact that the vision can directly and sequentially pass through the wind wheel blades, the wind wheel center, the wind cabinet main air inlet and the screen blocking gaps from the position of the air outlet of the range hood to be observed in the range hood, and the range hood is natural in effect.

Description

Direct-suction and direct-discharge range hood Technical Field The invention relates to the technical field of range hoods, in particular to a range hood. Background The most basic function of the range hood is to suck in the oil smoke, separate the oil smoke, discharge the smoke and collect the residual oil. Whichever type of range hood is structurally characterized in that a shell is additionally arranged on an exhaust fan. An ideal range hood is required to have good range hood effect, small noise, convenient use, easy cleaning, stable performance, fashionable appearance and high cost performance. At present, the household range hood circulated in the market has fewer products which can simultaneously meet the ideal requirements. Disclosure of Invention The invention provides the direct-suction direct-discharge range hood which has the advantages of high oil suction and smoke discharge efficiency, small noise, convenient use, easy cleaning, stable performance, fashionable appearance and high cost performance. The technical scheme of the invention is as follows: A direct-sucking and direct-exhausting range hood is composed of an upper part and a lower part, as shown in figure 1. The upper part comprises a motor, a wind wheel, a wind cabinet, a hood, a circuit board and a shell, wherein the circuit board and the hood are arranged at the top of the shell, the wind cabinet with a long neck curved surface air duct and a sinking volute is arranged in the shell, the motor and the centrifugal wind wheel are arranged in the volute, and air can be introduced into both sides of the volute. The lower part comprises a flat platen frame, a switch panel, a back shell plate, a left side plate, a right side plate, a left isolation guide plate, a right isolation guide plate, a transverse baffle net, a condensation baffle, a cavity back plate, a bottom plate, an oil cup hook and a strip-shaped oil cup, wherein a box body is formed by the flat platen frame, the back shell plate, the left side plate, the right side plate and the bottom plate, the box body is connected under the shell, the oil cup hook and the hanging strip-shaped oil cup are arranged at the bottom of the box body, the cavity back plate (in practical application, the cavity back plate and the back shell plate of part of products can be the same plate), the isolation guide plates are arranged at the left side and the right side, the transverse baffle net is arranged at the upper part of the box body, the rectangular condensation baffle with the condensation baffle hook is hung in front of an inclined plane, the air inlet of a cigarette machine is positioned at the bottom of the condensation baffle and at the back position of the lower section of the box body, the switch panel with a plum blossom button is adhered in front of the flat platen frame, and the switch panel is internally provided with a switch with a time delay function. The cavity back plate 31 may have various shapes, such as a plane shape erected as shown in fig. 2 and 5, an upper flat lower curved shape erected as shown in fig. 3 and 7, and an upper flat lower curved shape erected as shown in fig. 4 and 8. The air cabinet is provided with a long neck, and the inclined volute air outlet duct extends and bends to an air outlet positioned on the horizontal plane and is connected with the smoke cap. The spiral case main air intake slant is towards the rear below, and the wind cabinet bottom is sunk to the upper 5CM that the level corresponds on the platform frame and is gone up to 10CM interval range positions down, and the spiral case main air intake outside space of backward lower direction is wide, and easy wind wheel is admitted air, plays the effect of like immersible pump work similar function, and the suction is inhaled to the diving, and suction represents powerfully. The included angle between the axis line of the impeller and the horizontal plane of the bottom of the shell is 15-75 degrees. The left and right sides of the inside of the box body of the range hood are provided with isolation guide plates, the rear of the isolation guide plates is closely adhered to the cavity rear plate of the box body, the top plate and the side plate of the platform plate frame, and the condensation hanging plate is closely adhered to the formed airtight space, so that the oil fume is not fed into the airtight space, the left and right corners of the box body are isolated, the influence of air flow disturbance is prevented, and oil dirt cannot gather at the left and right corners of the box body, so that the effect of isolating the oil fume is achieved. The isolating guide plate simultaneously guides the air flow to enter the wind wheel rapidly. The air flow passes through the area smoothly without blocking, the smoking effect is enhanced, the noise is reduced, and the isolation guide plate can play a role in reinforcing the box body. The isolation baffle may exist in a variety of shapes, such as, for exam