Shell assembly and range hood

Abstract

The shell assembly comprises a fan cover and an exhaust fume collecting hood and is provided with a mounting cavity used for mounting the bottom of the fan cover, and the exhaust fume collecting hood comprises a horizontal limiting piece serving as the cavity wall of the mounting cavity and a vertical limiting piece connected with the horizontal limiting piece at an included angle; the bottom of the fan cover is arranged in the mounting cavity, and the horizontal limiting piece abuts against the outer side wall of the bottom of the fan cover and stops the fan cover from moving in the front-back direction and / or the left-right direction of the shell assembly. The vertical limiting piece abuts against the bottom end of the draught fan cover and stops the draught fan cover from moving in the vertical direction of the shell assembly. According to the technical scheme, rapid alignment of the fan cover and the exhaust fume collecting cover can be achieved, the follow-up installation operation difficulty is lowered, and the installation efficiency and the installation precision are improved.

Description

Technical Field

[0001] The present application relates to the technical field of household electrical appliances, and particularly relates to a housing assembly and a range hood. Background Art

[0002] A range hood is a kitchen appliance used to purify the kitchen environment, which is used to suck cooking fumes, water vapor and other cooking waste gases generated during cooking, so as to discharge the waste gases outdoors.

[0003] In the related art, a traditional range hood includes a blower housing and a smoke collecting hood that cooperate to form a flue. Generally, screws or rivets are used to fix the blower housing and the smoke collecting hood. However, due to the large volume of the blower housing and the smoke collecting hood, the alignment operation during the screw connection or rivet connection is difficult, which affects the installation efficiency of the blower housing and the smoke collecting hood. Summary of the Invention

[0004] An embodiment of the present application provides a range hood, which can realize the rapid alignment of the blower housing and the smoke collecting hood, reduce the difficulty of subsequent installation operations, and improve the installation efficiency and installation accuracy.

[0005] In a first aspect, an embodiment of the present application provides a housing assembly, and the housing assembly includes:

[0006] A blower housing; and

[0007] A smoke collecting hood, having an installation cavity for installing the bottom of the blower housing. The smoke collecting hood includes a horizontal limiting member serving as a cavity wall of the installation cavity, and a vertical limiting member connected to the horizontal limiting member at an angle;

[0008] Wherein, the bottom of the blower housing is disposed in the installation cavity. The horizontal limiting member abuts against the outer side wall of the bottom of the blower housing and blocks the blower housing from moving in the front-back and / or left-right directions of the housing assembly. The vertical limiting member abuts against the bottom end of the blower housing and blocks the blower housing from moving in the up-down direction of the housing assembly.

[0009] In some embodiments, the smoke collecting hood further includes:

[0010] A top plate; and

[0011] A rear back plate, connected to the top plate at an angle, and jointly defining the installation cavity with the top plate;

[0012] Wherein, the horizontal limiting member is formed by bending relative to the top end of the rear back plate and is stacked with the rear back plate. The vertical limiting member is formed by bending relative to the horizontal limiting member. The rear back plate, the vertical limiting member and the horizontal limiting member are of an integral structure.

[0013] In some of these embodiments, the rear backboard includes:

[0014] A main body portion, connected to the top plate, and

[0015] A protruding portion, arranged coplanarly with the main body portion and protruding from the top plate in the up-down direction;

[0016] Wherein, the horizontal limiting member is formed by bending relative to the top end of the protruding portion and is at least stacked with the protruding portion.

[0017] In some of these embodiments, the horizontal limiting member has a first connection hole, the blower housing has a second connection hole corresponding to the first connection hole, and the housing assembly further includes:

[0018] A fastening member, sequentially passing through the second connection hole and the first connection hole to fix the horizontal limiting member to the blower housing.

[0019] In some of these embodiments, the rear backboard further includes:

[0020] A clearance convex hull, the clearance convex hull is located on the surface of the rear backboard facing away from the horizontal limiting member, and one end of the fastening member passing through the first connection hole extends into the clearance convex hull.

[0021] In some of these embodiments, the vertical limiting member has a first oil leakage structure, so that oil droplets can flow to the lower part of the vertical limiting member through the first oil leakage structure.

[0022] In some of these embodiments, the first oil leakage structure is configured as an oil leakage hole or an oil leakage slit;

[0023] And / or, the first oil leakage structure extends to the horizontal limiting member;

[0024] And / or, the vertical limiting member has a plurality of the first oil leakage structures, and the plurality of the first oil leakage structures are arranged at intervals along the length extension direction of the vertical limiting member.

[0025] In some of these embodiments, the blower housing includes:

[0026] A rear enclosure panel, arranged parallel to the rear backboard and abutting against the surface of the horizontal limiting member facing the installation cavity, the horizontal limiting member is used to block the rear enclosure panel from moving backward; and

[0027] An abutting flanging, arranged at an angle with the rear enclosure panel and abutting against the upper surface of the vertical limiting member, the vertical limiting member is used to block the abutting flanging from moving downward.

[0028] In some of these embodiments, the abutting flange has a second oil leakage structure, such that oil droplets can flow through the second oil leakage structure to the lower side of the abutting flange.

[0029] In some of these embodiments, when projected along the up-down direction, the projection of the second oil leakage structure is located within the projection of the first oil leakage structure.

[0030] In some of these embodiments, the vertical limiting member extends obliquely upward.

[0031] In some of these embodiments, the width of the vertical limiting member in the front-back direction is W, where W is greater than or equal to 2 mm and less than or equal to 20 mm; or, W is greater than or equal to 3.5 mm and less than or equal to 6 mm.

[0032] In a second aspect, embodiments of the present application provide a range hood, which includes a fan assembly and the housing assembly as described above, and the fan assembly is installed within the housing assembly.

[0033] Based on the housing assembly and the range hood of the present application, when the bottom of the fan cover is disposed in the installation cavity of the smoke collecting hood, the horizontal limiting member and the vertical limiting member of the smoke collecting hood respectively limit the movement of the fan cover in the front-back and / or left-right directions and the up-down direction of the housing assembly, such that the housing assembly of this embodiment has at least two aspects of effects:

[0034] First, through the abutting and limiting effects of the horizontal limiting member and the vertical limiting member to achieve quick alignment between the fan cover and the smoke collecting hood, the number of installers during the alignment process can be reduced, and at the same time, the stability of the relative position when the fan cover and the smoke collecting hood are installed is improved, such that the subsequent connection process between the fan cover and the smoke collecting hood is not prone to displacement, the operation difficulty is reduced, and the installation efficiency and installation accuracy of the subsequent fan cover and smoke collecting hood are effectively improved;

[0035] Second, since the horizontal limiting member abuts against the outer side wall of the bottom of the fan cover, on the basis of ensuring the limiting effect, the occupancy rate of the internal space of the fan cover is reduced, and further, the obstruction to the airflow entering the fan cover is reduced, the oil smoke passing efficiency within the fan cover is effectively improved, and at the same time, the working noise is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following-described drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the structures shown in these drawings.

[0037] Figure 1Structural schematic diagram of an embodiment of the range hood of the present application;

[0038] Figure 2 Cross-sectional structural schematic diagram of an embodiment of the housing assembly of the present application;

[0039] Figure 3 Is Figure 2 Partial enlarged view at A in

[0040] Figure 4 Structural schematic diagram of the smoke collecting hood of the housing assembly of the present application;

[0041] Figure 5 Structural schematic diagram of the smoke collecting hood of the housing assembly of the present application from another perspective;

[0042] Figure 6 Structural schematic diagram of the smoke collecting hood of the housing assembly of the present application from yet another perspective;

[0043] Figure 7 Is Figure 6 Partial enlarged view at B in

[0044] Figure 8 Structural schematic diagram of the rear enclosure and side enclosures of the fan housing of the present application;

[0045] Figure 9 Cross-sectional structural schematic diagram of another embodiment of the housing assembly of the present application;

[0046] Figure 10 Is Figure 9 Partial enlarged view at C in

[0047] Figure 11 Structural schematic diagram of the rear enclosure and side enclosures of another embodiment of the housing assembly of the present application.

[0048] Explanation of the reference numerals in the drawings:

[0049] 1000, range hood; 100, housing assembly; 10, fan housing; 11, front cover plate; 12, rear enclosure; 121, second connection hole; 13, abutting flange; 131, second oil leakage structure; 14, side enclosures; 15, cover plate; 151, smoke exhaust port; 20, smoke collecting hood; 20A, installation cavity; 21, horizontal limiting member; 211, first connection hole; 22, vertical limiting member; 221, first oil leakage structure; 23, top plate; 24, rear back plate; 241, main body portion; 242, protruding portion; 243, clearance convex hull; 25, side plate; 30, fastener; 200, fan assembly.

[0050] The realization of the purpose, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. Detailed implementation manners

[0051] To make the objectives, technical solutions, and advantages of this application clearer, the following will further describe the embodiments of this application in detail with reference to the accompanying drawings.

[0052] When the following description refers to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. On the contrary, they are merely examples of devices and methods that are consistent with some aspects of this application as detailed in the appended claims.

[0053] In the description of this application, it should be understood that terms such as "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances. In addition, in the description of this application, unless otherwise specified, "a plurality" means two or more. "And / or" describes the association relationship of associated objects and indicates that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally represents an "or" relationship between the associated objects before and after.

[0054] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs. The terms used in the description of this specification are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0055] An oil fume extractor is a kitchen appliance used to purify the kitchen environment, for sucking cooking fumes, water vapor, and other cooking exhaust gases generated during cooking to discharge the exhaust gas outdoors.

[0056] In the related art, a traditional oil fume extractor includes a blower housing and a smoke collecting hood that cooperate to form a flue. Generally, screws or rivets are used to fix the blower housing and the smoke collecting hood. However, due to the large volume of the blower housing and the smoke collecting hood, the alignment operation during screw connection or rivet connection is difficult, which in turn affects the installation efficiency of the blower housing and the smoke collecting hood.

[0057] To solve the above problems, please refer to Figure 1, on one hand, the present application proposes an oil fume extractor 1000. In the embodiments of the present application, the oil fume extractor 1000 includes a housing assembly 100 and a fan assembly 200. Among them, the fan assembly 200 is installed in the internal space of the housing assembly 100, and the housing assembly 100 is provided with a smoke suction port (not shown) communicating with the internal space. The smoke suction port is usually suspended above the cooking stove in the kitchen. The fan assembly 200 has an air inlet for generating a negative pressure suction force, so that the oil fume can be sucked in through the smoke suction port of the housing assembly 100 without filling the kitchen with oil fume, thereby improving the user experience during cooking.

[0058] In order to improve the overall rapid assembly of the housing assembly 100, please continue to refer to Figures 1 to 4 , on the other hand, the present application proposes a housing assembly 100. In the embodiments of the present application, the housing assembly 100 includes a fan cover 10 and a smoke collecting cover 20. The smoke collecting cover 20 has an installation cavity 20A for installing the bottom of the fan cover 10, so that the bottom of the fan cover 10 is arranged in the installation cavity 20A. It should be noted that the housing assembly 100 further includes a cover body (not shown), and the cover body covers and connects to the front side of the smoke collecting cover 20, so that the cover body, the fan cover 10 and the smoke collecting cover 20 cooperate to form a space for the oil fume to pass through, and the above-mentioned smoke suction port is opened on the cover body.

[0059] The outer contour of the fan cover 10 can be square. And the material of the fan cover 10 can be a metal material, for example, it can be a metal material, including but not limited to stainless steel, aluminum, etc. The embodiments of the present application do not limit this. When the material of the fan cover 10 is stainless steel, it has the advantages of high strength, high temperature resistance, environmental protection and hygiene, etc. The above-mentioned fan assembly 200 can be fixedly installed inside the fan cover 10. The fan assembly 200 can be a centrifugal fan, an axial flow fan, a cross-flow fan, etc. The present application does not limit this. Considering factors such as power and noise, the present application can select the fan assembly 200 as a centrifugal fan.

[0060] And the volume of the smoke collecting cover 20 is larger than that of the fan cover 10 because the smoke collecting cover 20 needs to have a larger coverage area to better correspond to collecting the oil fume generated during the cooking process and reduce the escape of the oil fume. The smoke collecting cover 20 can be, but is not limited to, a metal or plastic material. Exemplarily, the smoke collecting cover 20 can be a metal material to improve the structural strength of the smoke collecting cover 20, thereby extending the service life of the housing assembly 100.

[0061] Meanwhile, the smoke collecting hood 20 includes a horizontal limiting member 21 which is the wall of the installation cavity 20A, and a vertical limiting member 22 which is connected to the horizontal limiting member 21 at an angle. It can be understood that when the housing assembly 100 is assembled on an installation table surface such as an assembly table, the front-back direction of the housing assembly 100 is the direction perpendicular to the installation table surface, the left-right direction of the housing assembly 100 is the horizontal transverse extension direction of the installation table surface, and the up-down direction of the housing assembly 100 is the horizontal longitudinal extension direction of the installation table surface. In this way, the horizontal limiting member 21 abuts against the outer side wall of the bottom of the blower housing 10 and is located in the front-back direction of the housing assembly 100 to prevent the blower housing 10 from moving in the front-back direction of the housing assembly 100. In another embodiment, the horizontal limiting member 21 is located in the left-right direction of the housing assembly 100, so as to prevent the blower housing 10 from moving in the left-right direction of the housing assembly 100. In yet another embodiment, the horizontal limiting member 21 can extend to be located in both the front-back direction and the left-right direction of the housing assembly 100. In this way, the blower housing 10 can be prevented from moving in both the front-back and left-right directions of the housing assembly 100, thereby improving the limiting effect on the blower housing 10. And the vertical limiting member 22 abuts against the bottom end of the blower housing 10 to prevent the blower housing 10 from moving in the up-down direction of the housing assembly 100, so that the position of the blower housing 10 in the up-down direction is stable.

[0062] Based on the housing assembly 100 and the range hood 1000 of the present application, when the bottom of the blower housing 10 is arranged in the installation cavity 20A of the smoke collecting hood 20, the horizontal limiting member 21 and the vertical limiting member 22 of the smoke collecting hood 20 respectively limit the movement of the blower housing 10 in the front-back and / or left-right direction and the up-down direction of the housing assembly 100, so that the housing assembly 100 of this embodiment has at least two aspects of effects:

[0063] First, through the abutting and limiting effects of the horizontal limiting member 21 and the vertical limiting member 22, the quick alignment between the blower housing 10 and the smoke collecting hood 20 can be realized, the number of installers in the alignment process can be reduced, and at the same time, the stability of the relative position between the blower housing 10 and the smoke collecting hood 20 during installation can be improved, so that the subsequent connection process between the blower housing 10 and the smoke collecting hood 20 is not likely to be displaced, the operation difficulty is reduced, and the installation efficiency and installation accuracy of the subsequent blower housing 10 and smoke collecting hood 20 are effectively improved;

[0064] Second, since the horizontal limiting member 21 abuts against the outer side wall of the bottom of the blower housing 10, on the basis of ensuring the limiting effect, the occupancy rate of the internal space of the blower housing 10 is reduced, and further the obstruction to the airflow entering the blower housing 10 is reduced, the oil fume passing efficiency in the blower housing 10 is effectively improved, and at the same time, the working noise is reduced.

[0065] Refer to Figures 4 to 7, in some embodiments, the smoke collecting hood 20 further includes a top plate 23, a rear plate 24, and two side plates 25. The rear plate 24 is connected to the top plate 23 at an angle and together with the top plate 23 defines an installation cavity 20A. The two side plates 25 are respectively connected between the top plate 23 and the rear plate 24 and are disposed opposite to each other. One side of the two side plates 25 away from the rear plate 24 is connected to the cover body. Thus, the top plate 23, the rear plate 24, the two side plates 25, and the cover body enclose a smoke cavity, and are connected to the inside of the fan hood 10 through the installation cavity 20A for exhausting smoke. The rear plate 24 is usually installed by fitting against the wall, and the angle between the rear plate 24 and the top plate 23 can be set at 90 degrees. In this way, when the rear plate 24 is installed on the wall surface, the top plate 23 can be set horizontally. The horizontal limiting member 21 is formed by bending relative to the top end of the rear plate 24 and is stacked with the rear plate 24, so as to form a double-layer abutting structure to improve the abutting strength of the horizontal limiting member 21, and further improve the limiting effect on the fan hood 10. The vertical limiting member 22 is formed by bending relative to the horizontal limiting member 21, that is, the rear plate 24, the vertical limiting member 22, and the horizontal limiting member 21 are formed by a continuous bending process. Thus, the rear plate 24, the vertical limiting member 22, and the horizontal limiting member 21 are of an integral structure, which can not only reduce assembly steps such as welding, the process is simple, but also improve the structural strength of the horizontal limiting member 21 and the vertical limiting member 22, and further ensure the limiting effect on the fan hood 10.

[0066] Further, the rear plate 24 includes a main body portion 241 and a protruding portion 242. The main body portion 241 is connected to the top plate 23, and the protruding portion 242 is coplanar with the main body portion 241 and protrudes from the top plate 23 in the up and down direction. Among them, by forming the protruding portion 242 to protrude from the top plate 23, and the horizontal limiting member 21 is formed by bending relative to the top end of the protruding portion 242 and is at least stacked with the protruding portion 242. In this way, the portion of the horizontal limiting member 21 that also protrudes from the top plate 23 can not only play a guiding role when the bottom of the fan hood 10 is disposed in the installation cavity 20A, thereby further improving the installation efficiency and installation accuracy, but also increase the contact area between the horizontal limiting member 21 and the fan hood 10, and further improve the abutting strength of the horizontal limiting member 21. It should be noted that in other embodiments, the horizontal limiting member 21 can also extend to be stacked with the main body portion 241, so as to further increase the stacked area formed by the horizontal limiting member 21 and the rear plate 24, so as to further improve the abutting strength of the horizontal limiting member 21, and further improve the limiting effect on the fan hood 10.

[0067] Further, with reference to Figure 3 , Figure 4 , Figure 7 and Figure 8, the horizontal limiting member 21 has a first connection hole 211. The blower housing 10 has a second connection hole 121 corresponding to the first connection hole 211. The housing assembly 100 further includes a fastener 30 that sequentially passes through the second connection hole 121 and the first connection hole 211 to fix the horizontal limiting member 21 to the blower housing 10. Among them, the first connection hole 211 and the second connection hole 121 can be threaded holes, and the fastener 30 can be a screw. Using the screw to fix the horizontal limiting member 21 to the blower housing 10, this fixing method is relatively simple to install and easy to disassemble, facilitating subsequent maintenance and repair.

[0068] Meanwhile, when assembling the smoke collecting hood 20 and the blower housing 10, place the rear back plate 24 on the installation tabletop of the assembly table to ensure the stability of the smoke collecting hood 20 on the installation tabletop during installation. By sequentially passing the fastener 30 through the second connection hole 121 of the blower housing 10 and the first connection hole 211 of the horizontal limiting member 21, that is, fixing the blower housing 10 and the smoke collecting hood 20 in the front-rear direction of the housing assembly 100, the rear back plate 24 can be maintained on the installation tabletop without flipping the smoke collecting hood 20, thereby improving production efficiency.

[0069] It should be noted that the number of the first connection holes 211 and the second connection holes 121 can be multiple and correspond to each other, so that the fasteners 30 sequentially pass through the second connection holes 121 and the first connection holes 211 to improve the connection stability between the horizontal limiting member 21 and the blower housing 10. Of course, in other embodiments, it can also be a commonly used connection method in the art such as pin connection or rivet connection to fix the horizontal limiting member 21 to the blower housing 10.

[0070] Furthermore, the rear back plate 24 further includes a clearance boss 243. The clearance boss 243 is located on the surface of the rear back plate 24 facing away from the horizontal limiting member 21. One end of the fastener 30 passing through the first connection hole 211 extends into the clearance boss 243. Thus, the clearance boss 243 can cover one end of the fastener 30 passing through the first connection hole 211 to prevent the fastener 30 from being exposed on the surface of the rear back plate 24 facing away from the horizontal limiting member 21, which can not only prevent the fastener 30 from scratching the installer and improve safety. It should be noted that the clearance boss 243 and the rear back plate 24 can be an integral structure, that is, the clearance boss 243 can be directly formed by stamping the rear back plate 24, which can improve the connection stability between the two and reduce the assembly steps. Of course, the clearance boss 243 and the rear back plate 24 can also be a split structure, for example, connected by welding or bonding, etc. The embodiments of the present application do not limit this.

[0071] Refer to Figure 4 and Figure 7, in some embodiments, the vertical limiting member 22 is provided with a first oil leakage structure 221. It can be understood that during the process of exhausting oil fumes, some high-temperature oil particles in the oil fumes are thrown and attached to the blower cover 10 under the action of the blower assembly 200. After condensing into oil droplets, under the action of gravity, they flow along the inner wall of the blower cover 10 to the bottom and then flow onto the vertical limiting member 22. After that, the oil droplets can flow to the lower part of the vertical limiting member 22 through the first oil leakage structure 221, and then can flow into the oil collecting box below, so as to effectively reduce the possibility of oil stains accumulating on the vertical limiting member 22, thereby reducing the oil fume odor inside the range hood 1000. When the connection position between the blower cover 10 and the smoke collecting cover 20 is located at the overlapping position of the horizontal limiting member 21 and the blower cover 10 (for example, the fastener 30 passes through the blower cover 10 and the horizontal limiting member 21 for fixation), the stress position of this connection point is in front of the vertical limiting member 22, that is, the vertical limiting member 22 does not need to bear the weight of the blower cover 10. Therefore, the setting of the first oil leakage structure 221 on the vertical limiting member 22 will not affect the connection stability between the horizontal limiting member 21 and the blower cover 10.

[0072] Further, the first oil leakage structure 221 is configured as an oil leakage hole or an oil leakage slit, so that the first oil leakage structure 221 has a simple structure and is convenient for processing and manufacturing. It can be understood that the oil leakage hole can be set in the shape of a rectangular hole or a circular hole, etc., or the oil leakage slit can extend along the length direction or the width direction of the vertical limiting member 22, and specifically can be selected by those skilled in the art according to needs. Optionally, the first oil leakage structure 221 extends to the horizontal limiting member 21. In this way, the above setting can increase the oil leakage area of the first oil leakage structure 221 and reduce the possibility of oil stains climbing onto the horizontal limiting member 21, so as to further reduce the possibility of oil stain accumulation. Optionally, the vertical limiting member 22 has a plurality of first oil leakage structures 221, and the plurality of first oil leakage structures 221 are arranged at intervals along the length extension direction of the vertical limiting member 22. In this way, by further increasing the oil leakage area, the possibility of oil stain accumulation is reduced.

[0073] Refer to Figure 7, in some structural forms, the width of the vertical limiting member 22 in the front-rear direction is W. Among them, W is greater than or equal to 2 mm and less than or equal to 20 mm. Among them, when the width of the vertical limiting member 22 in the front-rear direction is W less than 2 mm, the contact area between the vertical limiting member 22 and the bottom end of the blower housing 10 is small and it is easy to disengage, and it cannot effectively play the role of abutting and positioning. When the width of the vertical limiting member 22 in the front-rear direction is W greater than 20 mm, the vertical limiting member 22 will occupy a large space in the installation cavity 20A, thereby blocking most of the air flow entering the blower housing 10, resulting in low oil fume passing efficiency in the blower housing 10. Thus, by limiting the width of the vertical limiting member 22 in the front-rear direction to be greater than or equal to 2 mm and less than or equal to 20 mm, not only can the function of the vertical limiting member 22 abutting and positioning the bottom end of the blower housing 10 be ensured, but also the space occupied in the installation cavity 20A can be reduced, thereby reducing the obstruction to the air flow entering the blower housing 10 and effectively improving the oil fume passing efficiency in the blower housing 10. In order to further ensure abutting positioning and improve the oil fume passing efficiency, W can be limited to a range greater than or equal to 3.5 mm and less than or equal to 6 mm.

[0074] Combined with reference to Figure 2 and Figure 8 , in some structural forms, the blower housing 10 includes a front cover plate 1511, a rear enclosure 12, two side enclosures 14, and a cover plate 15. The front cover plate 1511 and the rear enclosure 12 are arranged opposite to each other, and the two side enclosures 14 are respectively connected between the front cover plate 1511 and the rear enclosure 12, thereby enclosing a cavity with a top opening and a bottom opening. The cover plate 15 is connected to the rear enclosure 12 and the two side enclosures 14 to cover the top opening, and the blower assembly 200 can be connected to the cover plate 15 and is located in the cavity. The cover plate 15 is provided with a smoke exhaust port 151, and the smoke exhaust port 151 communicates with the cavity, and the bottom opening communicates with the installation cavity 20A of the smoke collecting hood 20. Thus, the cooking waste gas can flow from the smoke collecting hood 20 from bottom to top into the cavity of the blower housing 10, and then flow to a wide area such as the outdoor through the smoke exhaust port 151 of the cover plate 15 for discharge. Among them, the connection manner between the cover plate 15 and the side enclosures 14 and the rear enclosure 12 can be welding, riveting, threaded connection, snap connection or other connection manners, and the present application does not limit this. The rear enclosure 12 is arranged parallel to the rear back plate 24, and the rear enclosure 12 abuts against the surface of the horizontal limiting member 21 facing the installation cavity 20A to block the rearward movement of the rear enclosure 12, thereby synchronously blocking the rearward movement of the entire blower housing 10 to achieve the positioning of the blower housing 10 and the smoke collecting hood 20 in the front-rear direction.

[0075] Refer to Figures 9 to 11, in another embodiment, the fan housing 10 further includes an abutting flange 13. The abutting flange 13 is disposed at an angle with the rear panel 12, and the abutting flange 13 abuts against the upper surface of the vertical limiting member 22. The vertical limiting member 22 is used to block the downward movement of the abutting flange 13, thereby synchronously blocking the overall downward movement of the fan housing 10 to achieve the positioning of the fan housing 10 and the smoke collecting hood 20 in the up and down directions. At the same time, by forming the abutting flange 13, the contact area between the fan housing 10 and the vertical limiting member 22 is increased, thereby further improving the limiting effect in the up and down directions. It should be noted that the abutting flange 13 and the rear panel 12 can be an integral structure, that is, the abutting flange 13 can be formed by bending the bottom of the rear panel 12, so as to improve the abutting strength of the abutting flange 13 against the vertical limiting member 22. Of course, the abutting flange 13 and the rear panel 12 can also be made into a split form for easy maintenance and replacement.

[0076] It can be understood that the oil droplets on the inner wall of the rear panel 12 will flow to the abutting flange 13 under the action of gravity. In order to reduce the possibility of oil accumulation on the abutting flange 13, in some structural forms, the abutting flange 13 has a second oil leakage structure 131, so that the oil droplets can flow to the lower part of the abutting flange 13 through the second oil leakage structure 131, and then flow to the vertical limiting member 22, and then flow into the lower oil collecting box through the first oil leakage structure 221 of the vertical limiting member 22. In this way, the possibility of oil accumulation can be effectively reduced, thereby reducing the oil fume odor inside the range hood 1000. The second oil leakage structure 131 can be the same as the first oil leakage structure 221, and can be set as an oil leakage hole or an oil leakage slit.

[0077] Furthermore, when projected in the up and down direction, the projection of the second oil leakage structure 131 is located within the projection of the first oil leakage structure 221. That is, the opening boundary of the second oil leakage structure 131 is located within the opening boundary of the first oil leakage structure 221 or the opening boundary of the second oil leakage structure 131 coincides with the opening boundary of the first oil leakage structure 221. In this way, the oil droplets flowing out of the second oil leakage structure 131 can directly pass through the first oil leakage structure 221 and flow to the lower part of the vertical limiting member 22, avoiding remaining above the vertical limiting member 22 and reducing the situation of oil stains climbing up the vertical limiting member 22 to the horizontal limiting member 21. In this way, the possibility of oil accumulation can be effectively reduced, thereby reducing the oil fume odor inside the range hood 1000.

[0078] In some structural forms, the vertical limiting member 22 extends obliquely upward. In this way, while the vertical limiting member 22 abuts against the bottom end of the fan cover 10, the vertical limiting member 22 can also play a role in guiding the airflow, reducing the obstruction to the airflow, so as to further increase the upward flow speed of the airflow and further improve the oil fume passing efficiency inside the fan cover 10. In addition, when the first oil leakage structure 221 is provided on the vertical limiting member 22, the first oil leakage structure 221 is located at the lowest end of the vertical limiting member 22 in the up and down direction. In this way, the obliquely arranged vertical limiting member 22 can also play a role in guiding the oil droplets to flow to the first oil leakage structure 221 to improve the oil drainage efficiency.

[0079] In the drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components; in the description of the present application, it should be understood that if there are terms such as "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship, they are based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the drawings are only for illustrative purposes and cannot be understood as a limitation of this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0080] The above are only the preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A housing assembly is applied to a range hood, characterized in that, The housing assembly includes: A blower housing; and A smoke collecting hood having an installation cavity for installing the bottom of the blower housing. The smoke collecting hood includes a horizontal limiting member serving as the cavity wall of the installation cavity, and a vertical limiting member connected at an angle to the horizontal limiting member; Wherein, the bottom of the blower housing is disposed in the installation cavity. The horizontal limiting member abuts against the outer sidewall of the bottom of the blower housing and blocks the blower housing from moving in the front-back and / or left-right directions of the housing assembly. The vertical limiting member abuts against the bottom end of the blower housing and blocks the blower housing from moving in the up-down direction of the housing assembly.

2. The housing assembly according to claim 1, wherein, The smoke collecting hood further includes: A top plate; and A rear back plate connected at an angle to the top plate and jointly defining the installation cavity with the top plate; Wherein, the horizontal limiting member is formed by bending relative to the top end of the rear back plate and is stacked with the rear back plate. The vertical limiting member is formed by bending relative to the horizontal limiting member. The rear back plate, the vertical limiting member, and the horizontal limiting member are of an integral structure.

3. The housing assembly according to claim 2, wherein, The rear back plate includes: A main body portion connected to the top plate, and A protruding portion disposed coplanar with the main body portion and protruding above the top plate in the up-down direction; Wherein, the horizontal limiting member is formed by bending relative to the top end of the protruding portion and is at least stacked with the protruding portion.

4. The housing assembly according to claim 3, wherein, The horizontal limiting member has a first connection hole, and the blower housing has a second connection hole corresponding to the first connection hole. The housing assembly further includes: A fastener passing through the second connection hole and the first connection hole in sequence to fix the horizontal limiting member to the blower housing.

5. The housing assembly according to claim 4, wherein The rear back plate further includes: A clearance convex hull located on the surface of the rear back plate facing away from the horizontal limiting member. One end of the fastener passing through the first connection hole extends into the clearance convex hull.

6. The housing assembly according to any one of claims 2 to 5, characterized in that The vertical limiting member has a first oil leakage structure such that oil droplets can flow below the vertical limiting member through the first oil leakage structure.

7. The housing assembly according to claim 6, characterized in that, The first oil leakage structure is configured as an oil leakage hole or an oil leakage slit; And / or, the first oil leakage structure extends to the horizontal limiting member; And / or, the vertical limiting member has a plurality of the first oil leakage structures, and the plurality of first oil leakage structures are spaced apart along the length extension direction of the vertical limiting member.

8. The housing assembly according to claim 6, wherein The blower housing includes: A rear enclosure plate disposed parallel to the rear back plate and abutting against the surface of the horizontal limiting member facing the installation cavity. The horizontal limiting member is used to block the rear enclosure plate from moving backward; and An abutting flanging disposed at an angle to the rear enclosure plate and abutting against the upper surface of the vertical limiting member. The vertical limiting member is used to block the abutting flanging from moving downward.

9. The housing assembly according to claim 8, wherein, The abutting flanging has a second oil leakage structure such that oil droplets can flow below the abutting flanging through the second oil leakage structure.

10. The housing assembly according to claim 9, characterized in that, When projected in the up-down direction, the projection of the second oil leakage structure is located within the projection of the first oil leakage structure.

11. The housing assembly according to any one of claims 1 to 5, characterized in that, The vertical limiting member extends obliquely upward.

12. The housing assembly according to any one of claims 1 to 5, characterized in that The width of the vertical limiting member in the front-rear direction is W, where W is greater than or equal to 2 mm and less than or equal to 20 mm; or, W is greater than or equal to 3.5 mm and less than or equal to 6 mm.

13. An oil fume suction machine, characterized in that, It includes a fan assembly and the housing assembly according to any one of claims 1 to 12, and the fan assembly is installed in the housing assembly.

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