CN221811348U - A range hood - Google Patents

Abstract

The utility model embodiment discloses a range hood, which relates to the technical field of range hoods, reduces the noise when the range hood is used, and the range hood comprises: a housing, the housing has a smoke collecting panel and a smoke exhaust channel connected to the outside, and the smoke collecting panel is provided with a smoke inlet; a volute, having a cavity, the volute is fixedly installed inside the housing, and has an air inlet and an air outlet, and the air outlet is arranged corresponding to the smoke exhaust channel; an impeller, installed in the cavity of the volute, the impeller is a drum structure, one end of the impeller is an air inlet end, which is arranged corresponding to the air inlet and is connected to the smoke inlet, and the side wall of the impeller is provided with an air outlet connected to the cavity of the volute; a first noise reducer, the first noise reducer is installed at the air outlet of the volute, and is used to divide the airflow discharged from the air outlet of the volute into at least two parts. The utility model is suitable for scenes of oil fume gas treatment.

Description

A range hood

Technical Field

The utility model relates to the technical field of range hoods, in particular to a range hood.

Background Art

As people's living standards improve, their demands for improving their living standards are constantly increasing. In the prior art, current range hoods can handle the fumes and gases generated when people cook very well. However, range hoods also generate certain noise when handling fumes. The longer the human body is affected by the noise, the more likely it is to cause damage to the human auditory system.

Utility Model Content

In view of this, an object of the present invention is to provide a range hood which is convenient for reducing the noise when the range hood is in use.

In order to achieve the above purpose, the utility model provides the following technical solutions:

An embodiment of the utility model provides a range hood, comprising: a shell, the shell having a smoke collecting panel and a smoke exhaust passage connected to the outside, the smoke collecting panel being provided with a smoke inlet; a volute, having a cavity, the volute being fixedly mounted inside the shell and having an air inlet and an air outlet, the air outlet being arranged corresponding to the smoke exhaust passage; an impeller mounted in the cavity of the volute, the impeller being a drum structure, one end of the impeller being an air inlet end, arranged corresponding to the air inlet and connected to the smoke inlet, the side wall of the impeller being provided with an air outlet connected to the cavity of the volute; a first noise reducer, the first noise reducer being mounted at the air outlet of the volute, for dividing the airflow discharged from the air outlet of the volute into at least two parts.

Optionally, the first noise reducer includes a frame and a diverter; the frame is a hollow cavity structure with openings at both ends, and the frame is fixedly connected to the inner wall of the smoke exhaust channel; the diverter is arranged on the frame, corresponding to the smoke exhaust channel, and forms at least two airflow channels inside the frame.

Optionally, the frame includes a support and a guide pipe end connected to the support; the frame is fixedly connected to the inner wall of the smoke exhaust channel through the support, and the diverter is fixedly arranged in the guide pipe end.

Optionally, the diverter is extended in a direction away from the support, and an end of the diverter extends out of the end of the guide tube.

Optionally, the diverter includes a first diverter plate and a second diverter plate, the directions of the first diverter plate and the second diverter plate are consistent with the airflow discharge direction of the smoke exhaust channel, the first diverter plate and the second diverter plate are cross-connected to form a cross-shaped structure, and four airflow channels are divided inside the frame.

Optionally, the first diverter sheet and the second diverter sheet are cross-connected to form an eccentric cross-shaped structure.

Optionally, the first diverter plate and the second diverter plate are guide plates.

Optionally, a second noise reducer is provided at the air inlet of the volute.

Optionally, the second noise reducer includes an annular base and at least two ribs connected to the annular base, the annular base is fixedly connected to the port of the air inlet of the volute, and the at least two ribs are cross-connected to form a mesh structure to form multiple airflow channels at the air inlet of the volute.

The utility model provides a range hood, comprising a shell, the shell having a smoke collecting panel and a smoke exhaust passage communicating with the outside, the smoke collecting panel being provided with a smoke inlet; a volute having a cavity, the volute being fixedly mounted inside the shell, and having an air inlet and an air outlet, the air outlet being arranged corresponding to the smoke exhaust passage; an impeller being mounted in the cavity of the volute, the impeller being a drum structure, one end of the impeller being an air inlet end, being arranged corresponding to the air inlet and being communicated with the smoke inlet, the side wall of the impeller being provided with a fan connected to the air inlet An air outlet duct connected to the cavity of the volute; a first noise reducer, which is installed at the air outlet of the volute and is used to divide the airflow discharged from the air outlet of the volute into at least two parts; in this way, when oil smoke is generated, the oil smoke enters the smoke inlet on the smoke collecting panel of the shell along with the air flow, and then enters the cavity of the volute through the air outlet duct opened on the impeller, and then the discharged airflow is divided into at least two parts from the air outlet of the volute upward through the first noise reducer, which can disperse the noise source and further reduce the noise, thereby facilitating the reduction of noise when the range hood is used.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

FIG1 is a schematic structural diagram of a range hood in an embodiment of the present invention;

FIG2 is a top view of a range hood in an embodiment of the present invention;

FIG3 is a schematic structural diagram of a noise reducer of a range hood in an embodiment of the present utility model.

DETAILED DESCRIPTION

The embodiments of the utility model are described in detail below with reference to the accompanying drawings.

It should be clear that the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

The embodiment of the utility model provides a range hood, which is convenient for reducing the noise when the range hood is in use.

The present invention is further described in detail below with reference to the accompanying drawings.

1 and 2, a range hood provided in the present embodiment comprises a housing 11, the housing 11 having a smoke collecting panel 101 and a smoke exhaust passage communicating with the outside, a smoke collecting panel 101 being provided with a smoke inlet; a volute 12 having a cavity 121, the volute 12 being fixedly mounted inside the housing 11, and having an air inlet and an air outlet, the air outlet being arranged corresponding to the smoke exhaust passage; an impeller 13 being mounted in the cavity of the volute 12, the impeller 13 being a drum structure, one end of the impeller 13 being an air inlet end, being arranged corresponding to the air inlet and being communicated with the smoke inlet, an air outlet being arranged on a side wall of the impeller 13 and being communicated with the cavity 121 of the volute 12; a first noise reducer 14, the first noise reducer 14 being mounted at the air outlet of the volute 12, and being used for dividing the airflow discharged from the air outlet of the volute 12 into at least two parts;

Among them, a smoke collecting panel 101 is provided on the side of the shell 11 facing the operator, and has a smoke exhaust channel connected to the outside. A smoke inlet is provided on the smoke collecting panel 101, thereby improving the efficiency of collecting the oil smoke gas and sending it into the box for treatment; the volute 12 has a cavity 121. The volute 12 is fixedly installed inside the shell 11 and has an air inlet and an air outlet. The air outlet is arranged corresponding to the smoke exhaust channel. Because the impeller 13 in the volute 12 rotates at a high speed, the air in the volute 12 is discharged due to the centrifugal effect, resulting in a pressure difference between the inside and outside of the volute 12, thereby making the oil smoke gas is sucked into the volute 12; the impeller 13 is arranged in the cavity of the volute 12, and the impeller 13 is a drum structure, one end of the impeller 13 is the air inlet end, which is arranged corresponding to the air inlet and is connected with the smoke inlet, and the side wall of the impeller 13 is provided with an air outlet duct connected with the cavity 121 of the volute 12. When the oil smoke passes through the impeller 13, the oil component in the oil smoke will be thrown onto the shell 11 through the centrifugal force generated by the movement of the drum structure; the first noise reducer 14, the first noise reducer 14 is arranged at the outlet of the volute 12, thereby reducing the noise generated when the range hood discharges the oil smoke through the smoke exhaust channel.

The utility model provides a range hood, comprising a shell, the shell having a smoke collecting panel and a smoke exhaust passage communicating with the outside, the smoke collecting panel being provided with a smoke inlet; a volute having a cavity, the volute being fixedly mounted inside the shell, and having an air inlet and an air outlet, the air outlet being arranged corresponding to the smoke exhaust passage; an impeller being mounted in the cavity of the volute, the impeller being a drum structure, one end of the impeller being an air inlet end, being arranged corresponding to the air inlet and being communicated with the smoke inlet, and an air outlet communicating with the cavity of the volute being arranged on a side wall of the impeller duct; a first noise reducer, which is installed at the air outlet of the volute and is used to divide the airflow discharged from the air outlet of the volute into at least two parts; in this way, when oil smoke is generated, the oil smoke enters the smoke inlet on the smoke collecting panel of the shell along with the air flow, and then enters the cavity of the volute through the air outlet duct opened on the impeller, and then goes upward from the air outlet of the volute through the first noise reducer to divide the discharged airflow into at least two parts, which can disperse the noise source and further reduce the noise, thereby facilitating the reduction of the noise when the range hood is used.

Referring to Figure 1, in some embodiments, the first noise reducer 14 includes a frame 141 and a diverter 142; the frame 141 is a hollow cavity structure with openings at both ends, and the frame 141 is fixedly connected to the inner wall of the smoke exhaust channel; the diverter 142 is arranged on the frame, corresponding to the smoke exhaust channel, and forms at least two air flow channels inside the frame 141; wherein, the frame 141 is a cavity structure, and the diverter 142 is placed above the frame 141, and forms at least two air flow channels, when the range hood performs exhaust operation, the oil smoke passes through the exhaust channel, and then the diverter 142 separates the oil smoke gas through the two air flow channels, so that the range hood has an oil smoke gas separation effect.

1 and 3 , in some embodiments, the frame 141 includes a support 1411 and a guide pipe end 1412 connected to the support; the frame 141 is fixedly connected to the inner wall of the smoke exhaust channel through the support, and the diverter 142 is fixedly arranged in the guide pipe end 1412; wherein, the support and the guide pipe end together constitute the frame, and the outer surface of the support at the contact position with the smoke exhaust channel wall and the inner wall of the smoke exhaust channel can be fixedly connected by welding, and the diverter is arranged inside the guide pipe end, thereby improving the separation efficiency of the oil fume gas.

1 and 3 , in some embodiments, the diverter 142 is extended in a direction away from the support 1411, and the end of the diverter 142 extends out of the guide tube end 1412; wherein, the extension in the direction away from the support 1411 increases the action stroke of the diverter 142, thereby extending the diverter action time of the diverter on the oil fume gas, ensuring that the oil fume gas is discharged after being away from the air outlet.

1 and 3 , in some embodiments, the diverter 142 includes a first diverter plate 1421 and a second diverter plate 1422. The directions of the first diverter plate 1421 and the second diverter plate 1422 are consistent with the airflow discharge direction of the smoke exhaust channel. The first diverter plate 1421 and the second diverter plate 1422 are cross-connected to form a cross-shaped structure, separating four airflow channels inside the frame. In this way, when the oil fume gas enters the diverter through the smoke exhaust channel, the structure of the smoke exhaust channel separates the oil fume gas, ensuring that the oil fume is efficiently discharged from the smoke extractor, thereby improving the smoke exhaust efficiency of the diverter.

Referring to Figures 1 and 3, in some embodiments, the first diverter plate 1421 and the second diverter plate 1422 are cross-connected to form an eccentric cross structure; wherein, when the range hood exhausts oil fume gas, the air separation device arranged inside the cover body divides the exhausted oil fume gas into two parts through the eccentric cross structure, thereby reducing the exhaust air volume, reducing the noise generated during exhaust, and forming an air circulation with the outside world.

1 and 3, in some embodiments, the first diverter plate 1421 and the second diverter plate 1422 are guide plates; wherein, in addition to diverting the oil smoke discharged through the exhaust channel, the first diverter plate 1421 and the second diverter plate 1422 can also guide the diverted oil smoke, thereby reducing the impact of the diverted oil smoke on the inner wall of the exhaust pipe during exhaust, and can further reduce noise.

In some embodiments, a second noise reducer (not shown in the figure) is provided at the air inlet of the volute; wherein, when the range hood is absorbing and discharging oil fume gas, the oil fume gas will enter from the air inlet on the volute and then be discharged from the air outlet on the volute, but when the range hood is absorbing and discharging oil fume gas, a certain amount of noise will be generated. On the premise that the first noise reducer is provided at the air outlet of the volute, the air inlet of the volute should also be provided with a second noise reducer to ensure the noise reduction effect of the noise reducer.

In some embodiments, the second noise reducer (not shown in the figure) includes an annular base and at least two ribs connected to the annular base, the annular base is fixedly connected to the port of the air inlet of the volute, and at least two ribs are cross-connected to form a mesh structure to form multiple airflow channels at the air inlet of the volute; wherein the number of ribs can be multiple, which can form a mesh structure to create multiple airflow channels, but at least two are required to achieve the function of separating the oil fume gas discharged from the range hood.

For example, the second noise reducer may be a mesh cover structure, which reduces the wind resistance coefficient by setting the mesh structure, and can block a portion of the air intake and air outlet through adjustment, thereby reducing part of the wind noise.

It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

The above content has described the embodiments of the present utility model in detail. Those skilled in the art can design and modify the device and its use within the scope of the present utility model according to the on-site construction conditions.

Each embodiment in this specification is described in a related manner, and the same or similar parts between the embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

The above is only a specific embodiment of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims (9)

1. A range hood, comprising: A housing, wherein the housing has a smoke collecting panel and a smoke exhaust passage communicating with the outside, and the smoke collecting panel is provided with a smoke inlet; A volute having a cavity, the volute is fixedly mounted inside the shell and has an air inlet and an air outlet, the air outlet is arranged corresponding to the smoke exhaust channel; An impeller is installed in the cavity of the volute, the impeller is a drum structure, one end of the impeller is an air inlet end, which is arranged corresponding to the air inlet and is connected to the smoke inlet, and an air outlet duct connected to the cavity of the volute is arranged on the side wall of the impeller; A first noise reducer is installed at the air outlet of the volute, and is used for dividing the airflow discharged from the air outlet of the volute into at least two parts. 2. The range hood according to claim 1, wherein the first noise reducer comprises a frame and a flow divider; The frame is a hollow cavity structure with openings at both ends, and the frame is fixedly connected to the inner wall of the smoke exhaust passage; The flow divider is arranged on the frame, corresponds to the smoke exhaust channel, and forms at least two air flow channels inside the frame. 3. The range hood according to claim 2, characterized in that the frame comprises a support and a guide pipe end connected to the support; The frame is fixedly connected to the inner wall of the smoke exhaust passage through the support, and the flow divider is fixedly arranged in the end of the guide pipe. 4 . The range hood according to claim 3 , wherein the diverter extends in a direction away from the support, and an end of the diverter extends out of the end of the guide pipe. 5. The range hood according to claim 2 is characterized in that the diverter comprises a first diverter plate and a second diverter plate, the directions of the first diverter plate and the second diverter plate are consistent with the airflow discharge direction of the smoke exhaust channel, the first diverter plate and the second diverter plate are cross-connected to form a cross-shaped structure, and four airflow channels are divided inside the frame. 6 . The range hood according to claim 5 , wherein the first flow diverter plate and the second flow diverter plate are cross-connected to form an eccentric cross-shaped structure. 7 . The range hood according to claim 6 , wherein the first flow dividing plate and the second flow dividing plate are guide plates. 8. The range hood according to claim 1, characterized in that a second noise reducer is provided at the air inlet of the volute. 9. The range hood according to claim 8 is characterized in that the second noise reducer comprises an annular base and at least two ribs connected to the annular base, the annular base is fixedly connected to the port of the air inlet of the volute, and the at least two ribs are cross-connected to form a mesh structure to form a plurality of air flow channels at the air inlet of the volute.