CN219346578U - Fume exhaust fan - Google Patents

Abstract

The application relates to a range hood, wherein, range hood includes at least: a main body; and cyclone structures respectively arranged on the left side and the right side of the main body along the width direction of the range hood, wherein the cyclone structures are provided with at least one cyclone pipeline, each cyclone pipeline is provided with an air inlet opening downwards along the height direction and an air outlet opening along the horizontal direction, the left side and the right side of the main body along the width direction are respectively provided with an interface, and the cyclone structures are detachably fixedly connected with the main body through the interfaces. The packing size of the hood can be reduced and cleaning of the cyclone structure can be easily achieved.

Description

Fume exhaust fan

Technical Field

The application relates to the field of household appliances, in particular to a range hood.

Background

In recent years, with the improvement of living standards, a range hood for sucking oil smoke generated during cooking has become an indispensable household appliance. The range hood is generally installed above a kitchen range, and can pump exhaust gas generated by combustion of the range and oil smoke harmful to human bodies generated during cooking out through a flue when in operation, thereby purifying the kitchen environment and reducing pollution.

Here, the oil and grease is contained in the oil and smoke gas sucked by the range hood, and the oil and grease can be solidified and accumulated on the shell, the fan blade or the flue of the range hood, so that the oil leakage risk of the range hood is caused, the normal operation of the fan is influenced, and the service life of the range hood is shortened. For this reason, in the existing range hood, a cyclone structure is provided, and the oil smoke air flow repeatedly impinges on the inner wall in a spiral manner in a cyclone pipe of the cyclone structure, so as to realize grease separation in the air flow. However, the cyclone structure in the existing range hood is fixedly provided in the main body of the range hood, which increases the packing size of the range hood on the one hand, complicates the transportation and installation process of the range hood, and on the other hand makes it difficult for the user to clean the cyclone structure in the range hood.

Disclosure of Invention

It is therefore an object of embodiments of the present application to provide an improved range hood having a cyclone structure that is independently disposed relative to the main body, whereby the main body and the cyclone structure of the range hood can be packaged and transported separately and assembled together at the point of use, which significantly reduces the packaging size of the range hood. In addition, the user can easily detach the cyclone structure from the main body, thereby easily realizing cleaning of the cyclone structure, thereby improving the user's use experience.

According to the application, a range hood is proposed, wherein the range hood comprises at least:

-a body; and

cyclone structures respectively disposed at left and right sides of the main body in a width direction of the range hood, the cyclone structures having at least one cyclone duct having an air inlet opening downward in a height direction and an air outlet opening in a horizontal direction,

the cyclone structure is detachably connected with the main body through the interfaces.

Compared with the prior art, in the range hood according to the present application, the cyclone structure for filtering the oil fume gas is fixedly installed at the interface of the main body disposed at the left and right sides in a detachable manner. In this case, the cyclone structure can be manufactured, packaged and transported separately from the main body of the range hood and assembled together only when reaching the place of use in the user's home, which significantly reduces the packaging size of the various components of the range hood and simplifies the manufacturing, packaging and transportation process of the range hood. In addition, the user can dismantle the cyclone structure when needs and clean, this has reduced the clean degree of difficulty of cyclone structure and has promoted user's use experience and feel correspondingly.

According to an exemplary embodiment of the present application, the cyclone structure is inserted into the interface in a snap-fit connection; or the cyclone structure is fixedly installed at the interface through bolt connection. Thereby enabling a detachable connection of the cyclone structure to the main body of the range hood.

According to an exemplary embodiment of the application, the range hood has an air flow channel configured for guiding an air flow coming out of the air outlet, wherein the air flow channel extends at least partly from the mouthpiece in the width direction towards the interior of the main body and/or the air flow channel is arranged at least partly at an end of the cyclone structure facing the main body. The air flow channel can effectively guide and stabilize the air flow from the cyclone structure, so that the suction air flow smoothly flows to the fan area and the working efficiency of the smoke exhaust ventilator is improved.

According to an exemplary embodiment of the application, a fan is arranged in the main body, a smoke collecting cavity with a negative pressure area is formed below the fan, wherein the air outlet communicates with the smoke collecting cavity through the interface. Thereby enabling the suction air flow to smoothly flow from the cyclone structure to the negative pressure region of the smoke collecting chamber through the air outlet.

According to an exemplary embodiment of the present application, the cyclone structure is symmetrically arranged about a center line of the range hood; and/or the cyclone structure is configured in a flat plate shape. This enables a simple manufacture and assembly of the cyclone structure and simplifies the cleaning process of the cyclone structure.

According to an exemplary embodiment of the present application, the cyclone structure is arranged obliquely, wherein an angle of the cyclone structure with respect to a horizontal direction is in the range of 2 ° to 8 °. This can make the grease of separating export smoothly under the effect of self gravity to avoid the main part design of smoke ventilator to be too heavy.

According to an exemplary embodiment of the present application, the range hood comprises an additional cyclone structure centrally arranged in the range hood in the width direction. The suction and filtering capability of the smoke exhaust ventilator for central smoke can be enhanced by the additional cyclone structure.

According to an exemplary embodiment of the present application, the additional cyclone structure is detachably mounted in the main body of the range hood. Hereby a simple assembly and cleaning process of the additional cyclone structure can be achieved.

According to an exemplary embodiment of the present application, the range hood has a moving panel arranged below the cyclone structure, which in a non-operating state closes the air inlet of the cyclone structure and in an operating state opens the air inlet to let the flow of cooking fumes into the cyclone structure. The negative pressure area of the smoke exhaust ventilator can be increased through the moving panel, so that the suction efficiency or smoke capturing rate of the smoke exhaust ventilator is improved, and the cyclone type filtering device is prevented from being damaged by external force.

According to an exemplary embodiment of the present application, the moving panel has two panel halves which cover the cyclone structures on the left and right sides of the main body, respectively. Illustratively, the panel halves are movably configured apart from one another. The operation of the cyclone filter devices on both sides can be controlled separately, so that the oil smoke generated by the lower kitchen range can be sucked in a targeted manner.

According to an exemplary embodiment of the application, an illumination is provided between the panel halves, which are flush in the inactive state; and/or the motion panel moves in a translational manner in the height direction. The conversion of the moving panel between the operating state and the non-operating state can thus be easily achieved and the suction efficiency or the smoke capture rate of the range hood can be increased.

According to an exemplary embodiment of the present application, the cyclone duct is provided with an air outlet at one end in the longitudinal extension direction and is closed at the opposite other end; alternatively, the cyclone duct is provided with air outlets at both ends in the longitudinal extension direction. Therefore, one-side air outlet or two-side air outlet of the cyclone pipeline can be arranged according to the requirement, and the air flow of the cyclone structure can be set in a targeted manner.

According to an exemplary embodiment of the present application, the cyclone structure has a plurality of cyclone ducts side by side with each other, the cyclone ducts having an air outlet opening toward a center of the range hood. Thereby realizing the efficient oil filtering performance of the cyclone structure.

According to an exemplary embodiment of the present application, the cyclone duct is arranged to be gradually lowered from the outside to the inside as seen in the width direction, such that a longitudinal extension direction of the cyclone duct forms an angle with the width direction. This allows grease filtered out through the cyclone tube to be smoothly guided out under the effect of its own gravity.

According to an exemplary embodiment of the present application, the range hood has an oil collection box arranged below the cyclone structure. The oil flowing out of the cyclone structure can be collected through the oil collecting box, and the oil is prevented from falling onto the kitchen range below.

Drawings

The principles, features and advantages of the present application may be better understood by describing the present application in more detail with reference to the drawings. The drawings include:

fig. 1 shows a schematic perspective view of a range hood according to an exemplary embodiment of the present application;

fig. 2 shows a schematic bottom view of a range hood according to an exemplary embodiment of the present application;

fig. 3a and 3b show perspective views of a main body and a cyclone structure of a range hood according to an exemplary embodiment of the present application, respectively;

fig. 4a and 4b show schematic side and front views, respectively, of a range hood according to an exemplary embodiment of the present application.

Reference numerals:

100-smoke exhaust ventilator, 10-main body, 11-fan, 12-smoke collecting cavity, 13-interface, 14-airflow channel, 20-cyclone structure, 21-cyclone pipeline, 22-air inlet, 23-air outlet, 30-additional cyclone structure, 31-additional cyclone pipeline, 40-motion panel, 41-panel half, 50-oil collecting box, 60-illumination part, X-width direction, Y-depth direction and Z-height direction.

Detailed Description

In order to make the technical problems, technical solutions and advantageous technical effects to be solved by the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings and a plurality of exemplary embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the present application. Here, for the sake of brevity, elements having the same reference number are labeled only once in the drawings where necessary.

It should be appreciated that the expressions "first", "second", etc. are used herein for descriptive purposes only and are not to be construed as indicating or implying relative importance or as implying any particular order of number of technical features indicated. Features defining "first", "second" or "first" may be expressed or implied as including at least one such feature.

In the description of the present embodiment, words such as "upper", "lower", "horizontal", "top", "bottom", "inner", "outer", and the like, which indicate an azimuth or a positional relationship, are used to describe the positional relationship of the constituent elements with reference to the drawings, are merely for convenience of description of the present specification and to simplify the description, and do not indicate or imply that the apparatus or elements referred to have a specific azimuth, are configured and operated in a specific azimuth, and thus are not to be construed as limiting the present disclosure. The positional relationship of the constituent elements is appropriately changed according to the direction in which each constituent element is described. Therefore, the present utility model is not limited to the words described in the specification, and may be appropriately replaced according to circumstances. Here, defined in terms of XYZ rectangular coordinate system in the drawings: the X direction corresponds to the width direction of the hood 100, the Y direction corresponds to the depth direction of the hood 100, and the Z direction corresponds to the height direction of the hood 100.

Fig. 1 shows a schematic perspective view of a range hood 100 according to an exemplary embodiment of the present application. Fig. 2 shows a schematic bottom view of the range hood 100 according to an exemplary embodiment of the present application. Fig. 3a and 3b show perspective views of the main body 10 and the air-rotating structure 20, respectively, of the range hood 100 according to an exemplary embodiment of the present application.

As shown in fig. 1 and 2, the range hood 100 includes a main body 10 that assumes the main function of the range hood 100 to suck the oil smoke. Illustratively, a fan 11 is provided in the main body 10 of the range hood 100, and a smoke collecting cavity 12 having a negative pressure region is formed below the fan 11 by rotation of a blade of the fan, and the lower smoke is sucked into the smoke collecting cavity 12 by the negative pressure region, and the smoke collecting cavity is configured to promote the effect of collecting the smoke of the range hood 100.

As shown in fig. 1 and 2, the range hood 100 includes cyclone structures 20 respectively arranged at left and right sides of the main body 10 in a width direction X of the range hood 100, wherein the cyclone structures 20 have at least one cyclone duct 21 having an air inlet 22 opened downward in a height direction Z and an air outlet 23 opened in a horizontal direction. Here, the oil smoke gas enters into the cyclone duct 21 through the air inlet 22, is rotationally accelerated in the cyclone duct and spirally impinges on the duct inner wall, thereby separating grease, moisture and solid particles carried in the oil smoke gas flow, thereby purifying the suction gas and reducing grease accumulation in the blower 11 and the flue to improve the operation performance and service life of the range hood 100.

Here, the body 10 and the air-rotating structure 20 are manufactured separately from each other and assembled with each other. As shown in fig. 3a, the main body 10 is provided at both left and right sides in the width direction X with ports 13, respectively, which communicate with the smoke collecting chamber 12 in the main body 10, and the cyclone structure 20 shown in fig. 3b can be detachably and fixedly connected with the main body 10 through the ports 13 from both left and right sides, respectively, wherein the air outlet 23 of the cyclone structure 20 can be in fluid communication with the smoke collecting chamber 12 of the main body 10 via the ports 13, thereby smoothly sucking the air in the cyclone structure 20 into the negative pressure region of the smoke collecting chamber 12. The main body 10 and the air-rotating structure 20 can thus be packaged and transported separately, which reduces the package size of the parts of the range hood 100, and the main body 10 and the air-rotating structure 20 can be easily assembled when reaching the user's kitchen. In addition, when the user needs to clean the range hood 100, the cyclone structure 20 can be simply detached from the main body 10, thereby reducing the difficulty of cleaning and improving the user's feeling of use experience.

Illustratively, the cyclone structure 20 is inserted into the interface 13 in a snap-fit connection, wherein, for example, a projection is provided at the end of the cyclone structure 20 facing the interface 13, while a corresponding lateral recess is provided in the interface 13, which projection is elastically deformable and snaps into said lateral recess when the cyclone structure 20 is inserted into the interface 13, whereby a relative fixation of the cyclone structure 20 and the body 10 is achieved. Here, the quick release structure connection is formed by the cyclone structure 20 and the main body 10, which allows a user to conveniently detach and install the cyclone structure 20 without an auxiliary tool. Of course, other means of attachment that would be considered interesting by the person skilled in the art are also contemplated, such as a fixed mounting of the cyclone structure 20 at the interface 13 by means of a screw connection, which likewise enables a detachable connection of the cyclone structure 20 to the main body 10.

Illustratively, as shown in FIG. 3a, the range hood 100 has an airflow passage 14 configured to direct an airflow out of the air outlet 23 of the cyclonic structure 20. The suction air flow coming out of the air outlet 23 of the cyclone structure 20 can be stabilized and smoothly reach the fan region by the air flow passage 14, which can improve the suction efficiency of the hood 100. Here, as shown in fig. 3b, the air outlet 23 of the cyclone structure 20 is located directly at the end of the cyclone structure 20 facing the interface 13. In this case, the air flow passage 14 may extend from the mouthpiece 13 in the width direction Z toward the inside of the main body 10, thereby achieving stabilization and guidance of the suction air flow inside the main body 10. It is furthermore also conceivable that the air outlet 23 of the cyclone structure 20 is not flush with the end of the cyclone structure 20 facing the interface 13, but is retracted relative to said end, and that the air flow channel 14 is arranged at least partially at the end of the cyclone structure 20 facing the main body 10. In addition, when the cyclone ducts 21 extend substantially in the depth direction Y or obliquely with respect to the width direction X and the depth direction Y, the airflow passage 14 may also be arranged at least partially in the cyclone structure 20 and communicate the air outlet 23 of each cyclone duct 21 with the interface 13.

Illustratively, as shown in FIG. 2, the cyclone structure 20 has a plurality of cyclone tubes 21 side by side with each other, the cyclone tubes having an air outlet 23 that opens toward the center of the range hood 100. Thereby increasing the air intake area of the cyclone structure 20 and allowing the suction gas to smoothly flow from the air outlet 23 to the fan region of the hood 100. In particular, the cyclone tube 21 is arranged to be gradually lowered from the outside to the inside as seen in the width direction X such that an angle is formed between the longitudinal extension direction of the cyclone tube 21 and the width direction X, which allows the grease filtered out by the cyclone tube 21 to flow out along the inner wall of the tube by the self-gravity, thereby achieving self-cleaning of the cyclone structure 20. It is also conceivable that the cyclone duct 21 extends substantially in the width direction X or the depth direction Y. Within the framework of the present application, "substantially along" means that the maximum deviation of the direction of extension of the cyclone tube 21 from the reference direction is within a negligible range.

Illustratively, as shown in FIG. 3b, the cyclone structure 20 is constructed in a flat plate-like manner. This allows for easy packaging and cleaning of the cyclone structure 20. It is also contemplated that the cyclonic structure 20 may have other shapes that would be considered to be of interest by those skilled in the art, such as an oval shape or a complex shape provided with protruding mounting surfaces.

Illustratively, as shown in fig. 1 and 2, the cyclonic structure 20 is symmetrically disposed about a centerline of the range hood 100. This improves both the appearance of the range hood 100 and simplifies the manufacturing and assembly process of the cyclone structure 20.

Illustratively, as shown in fig. 2, the range hood 100 includes an additional cyclone structure 30 centrally disposed in the range hood 100 along the width direction X. The additional cyclone structure 30 can effectively suck the oil smoke at the middle position of the range hood 100 and enhance the smoke catching rate of the range hood 100. Here, the additional cyclone structure 30 has a plurality of additional cyclone ducts 31 arranged alongside one another, which extend, for example, in the depth direction Y and have an air inlet opening which opens downward in the height direction and an air outlet opening which opens in the depth direction. In particular, the additional cyclone structure 30 is detachably assembled in the main body 10 of the range hood 100. For this, a mounting portion for mounting an additional cyclone structure 30, in which the additional cyclone structure can be received, is provided in the main body 10.

Illustratively, the cyclone duct 21 is provided with an air outlet 23 at one end in the longitudinal extension direction and is closed at the opposite other end, thereby achieving single-sided air outlet of the cyclone structure 20. It is also conceivable that the cyclone duct 21 is provided with air outlets 23 at both ends in the longitudinal extension direction, which enables bilateral air outlet of the cyclone structure 20 and increases the flow rate of the cyclone structure 20. For this purpose, an air flow passage is provided for the air outlet 23 at both ends of the cyclone duct 21 to stabilize and guide the air flowing out of the air outlet 23.

Fig. 4a and 4b show schematic side and front views, respectively, of a range hood 100 according to an exemplary embodiment of the present application.

Illustratively, as shown in fig. 4a, the cyclone structure 20 is disposed in the range hood 100 as a whole obliquely such that the cyclone structure 20 gradually decreases from front to rear in the depth direction Y, thereby enabling grease filtered out by the cyclone structure 20 to flow out under the action of its own gravity. The angle of the cyclone structure 20 with respect to the horizontal, in particular the depth direction Y, is in the range of 2 ° to 8 °. This can avoid the main body 10 of the hood 100 from being designed too thick.

Illustratively, as shown in fig. 4a, the range hood 100 has a moving panel 40 disposed below the cyclone structure 20 that in a non-operational state closes the smoke collecting chamber 12 and the air inlet 22 of the cyclone structure 20 and in an operational state opens the air inlet 22 to allow the flow of the cooking fume into the cyclone structure 20. In the operating state, the moving panel 40 can increase the negative pressure region of the hood 100 to some extent, thereby improving the suction efficiency of the hood 100. Illustratively, upon transition between the inactive state and the active state, the moving panel 40 moves in a translational manner in the height direction Z, thereby moving the moving panel 40 downwardly away from the cyclonic structure 20 in the active state, and the cooking fume gas enters the air inlet 22 of the cyclonic structure 20 through the space between the cyclonic structure 20 and the moving panel 40. It is also contemplated that the motion panel 40 is pivotally remote from the cyclonic structure 20 and opens the air intake 22.

Illustratively, as shown in fig. 4b, the moving panel 40 has two panel halves 41 which cover the cyclone structures 20 on the left and right sides of the main body 10, respectively. In particular, the two panel halves 41 of the moving panel 40 are configured to be movable apart from each other. The operation of the cyclone structures 20 on the left and right sides can be separately controlled by the independent movement of the two panel halves 41, so that the soot generated by the lower kitchen ranges can be sucked in a targeted manner, wherein when only one kitchen range is operated, only the panel half 41 on the side can be converted from the non-operating state to the operating state, and the panel half 41 on the other side can be kept in the non-operating state, which can suck the soot gas below in a targeted manner and prolong the service life of the whole range hood 100.

Illustratively, as shown in FIG. 4b, the range hood 100 has an oil collection box 50 that is removably disposed below the cyclonic structure 20. The grease filtered out by the cyclone structure 20 can be collected by the oil collection box 50 and prevented from falling onto the underlying cooktop. In particular, the oil collecting case 50 is disposed under the moving panel 40 and is movable with the moving panel 40 to collect grease remaining along the moving panel 40.

Illustratively, as shown in fig. 4b, the two panel halves 41 of the moving panel 40 are arranged spaced apart from each other and an illumination portion 60 is provided between the panel halves 41, which illumination portion is configured for illuminating the underlying cooktop area, wherein in the non-operating state the two panel halves 41 and the illumination portion 60 are flush, which can improve the appearance effect of the range hood 100 and simplify the cleaning process of the moving panel 40 and the illumination portion 60.

Although specific embodiments have been described above, these embodiments are not intended to limit the scope of the disclosure even if only a single embodiment is described with respect to a particular feature. The characteristic examples provided in this disclosure are intended to be illustrative, not limiting, unless stated otherwise. In a specific implementation, the features may be combined with one another where technically feasible according to the actual requirements. Various substitutions, alterations, and modifications can be made without departing from the spirit and scope of the application.

Claims (15)

1. A range hood (100), characterized in that the range hood (100) comprises at least:

-a body (10); and

cyclone structures (20) respectively arranged on the left and right sides of the main body (10) in the width direction (X) of the range hood (100), the cyclone structures having at least one cyclone duct (21) having an air inlet (22) opened downward in the height direction (Z) and an air outlet (23) opened in the horizontal direction,

the cyclone structure (20) is fixedly connected with the main body (10) in a detachable mode through the interfaces.

2. The range hood (100) of claim 1, wherein the range hood is configured to,

the cyclone structure (20) is inserted into the interface (13) in a clamping connection manner; or alternatively

The cyclone structure (20) is fixedly installed at the interface (13) through bolt connection.

3. The range hood (100) according to claim 1 or 2, characterized in that,

the range hood (100) has an air flow channel (14) configured for guiding an air flow coming out of the air outlet (23), wherein the air flow channel (14) extends at least partially from the mouthpiece (13) in the width direction (X) towards the interior of the main body (10) and/or wherein the air flow channel (14) is at least partially arranged at an end of the cyclone structure (20) facing the main body (10).

4. The range hood (100) according to claim 1 or 2, characterized in that,

a fan (11) is arranged in the main body, a smoke collecting cavity (12) with a negative pressure area is formed below the fan, and the air outlet (23) is communicated with the smoke collecting cavity (12) through the interface (13).

5. The range hood (100) according to claim 1 or 2, characterized in that,

the cyclone structure (20) is symmetrically arranged about a centerline of the range hood (100); and/or

The cyclone structure (20) is constructed in a flat plate shape.

6. The range hood (100) according to claim 1 or 2, characterized in that,

the cyclone structure (20) is arranged obliquely, wherein an included angle of the cyclone structure (20) with the horizontal direction is in a range of 2 DEG to 8 deg.

7. The range hood (100) according to claim 1 or 2, characterized in that,

the range hood (100) comprises an additional cyclone structure (30) centrally arranged in the range hood (100) in the width direction (X).

8. The range hood (100) of claim 7, wherein the range hood is configured to,

the additional cyclone structure (30) is detachably mounted in the main body (10) of the range hood (100).

9. The range hood (100) according to claim 1 or 2, characterized in that,

the range hood (100) has a movement panel (40) arranged below the cyclone structure (20), which in a non-operating state closes the air inlet (22) of the cyclone structure (20) and in an operating state opens the air inlet (22) for the flow of cooking fumes into the cyclone structure (20).

10. The range hood (100) of claim 9, wherein the range hood is configured to,

the moving panel (40) has two panel halves (41) which cover the cyclone structures (20) on the left and right sides of the main body (10), respectively.

11. The range hood (100) of claim 10, wherein the range hood is configured to,

the panel halves (41) are constructed so as to be movable apart from each other; and/or

-providing an illumination portion (60) between the panel halves (41), the panel halves (41) and the illumination portion (60) being flush in the inactive state; and/or

The movement panel (40) moves in a translational manner in the height direction (Z).

12. The range hood (100) according to claim 1 or 2, characterized in that,

the cyclone duct (21) is provided with an air outlet (23) at one end in the longitudinal extension direction and is closed at the opposite other end; or alternatively

The cyclone duct (21) is provided with air outlets (23) at both ends in the longitudinal extension direction.

13. The range hood (100) according to claim 1 or 2, characterized in that,

the cyclone structure (20) has a plurality of cyclone ducts (21) side by side with each other, the cyclone ducts having an air outlet (23) open towards the center of the range hood (100).

14. The range hood (100) of claim 13, wherein the range hood is configured to,

the cyclone duct (21) is arranged to be gradually lowered from the outside to the inside as seen in the width direction (X) such that an angle is formed between a longitudinal extension direction of the cyclone duct (21) and the width direction (X).

15. The range hood (100) according to claim 1 or 2, characterized in that,

the range hood (100) has an oil collection box (50) disposed below the cyclone structure (20).

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