A range hood shell and a range hood

Abstract

The application discloses an oil fume machine shell and an oil fume machine, and belongs to the field of oil fume machine equipment, and aims to improve the oil fume suction efficiency of the oil fume machine. The oil fume machine shell comprises a lower shell and an upper shell, the lower shell has opposite first and second ends, the outer diameter of the lower shell gradually decreases in the direction from the first end to the second end, the upper shell is connected with the first end, the lower shell is provided with a plurality of first air inlets, the plurality of first air inlets are arranged in the direction from the first end to the second end, and any one first air inlet is arranged along the circumference of the lower shell. The outer wall of the lower shell is inclined, and the oil fume can move along the outer wall of the lower shell in the oil fume rising process due to the wall attachment effect, so that the lower shell has the function of guiding the oil fume. The oil fume rising along the outer wall of the lower shell can be sequentially sucked into the plurality of first air inlets in the rising process, so that the oil fume machine with the oil fume machine shell has higher oil fume suction efficiency.

Description

Technical Field

[0001] This application belongs to the technical field of range hood equipment, and particularly relates to a range hood housing and a range hood. Background Technology

[0002] During use, cooking fumes enter the range hood through its air intake, are filtered, and are then expelled. Because cooking fumes diffuse randomly, range hoods need high fume extraction efficiency to prevent their further spread.

[0003] In related technologies, in order to increase the efficiency of range hoods in drawing in cooking fumes, the air intake is enlarged. While this can increase the efficiency of range hoods in drawing in cooking fumes to a certain extent, it will also increase the size of the range hood and the space it occupies. Summary of the Invention

[0004] This application aims to at least partially solve the technical problem of low oil fume extraction efficiency in range hoods. To this end, this application provides a range hood housing and a range hood.

[0005] This application discloses a range hood housing, comprising: a lower housing having a first inner cavity, the lower housing having opposing first and second ends, and the lower housing having an outer diameter that gradually decreases in the direction from the first end to the second end; and,

[0006] The upper housing is connected to the first end, and the upper housing has an air outlet communicating with the first inner cavity;

[0007] The lower housing has multiple first air inlets, which are distributed in the direction from the first end (110) to the second end, and any one of the first air inlets is arranged along the circumference of the lower housing.

[0008] In a range hood housing provided in this application embodiment, the inner diameter of the lower housing gradually decreases from the first end to the second end, making the outer wall of the lower housing inclined. During the ascent of the oil fumes, the fumes can move along the outer wall of the lower housing due to the wall-attachment effect, thereby giving the lower housing a guiding function for the oil fumes. Multiple first air inlets are arranged from the second end to the first end, so that the oil fumes rising along the outer wall of the lower housing can be sequentially drawn in by the multiple first air inlets during their ascent, thus making the range hood using this housing more efficient at drawing in oil fumes.

[0009] In some embodiments, the first air inlet is disposed circumferentially through the lower housing.

[0010] The circumferentially through first air inlet allows oil fumes from all parts around the lower housing to be drawn in.

[0011] In some embodiments, a plurality of first air inlets divide the lower housing into a plurality of sub-housings, and the range hood housing further includes a connecting portion disposed within the lower housing and connected to the plurality of sub-housings.

[0012] The connecting part connects with multiple sub-shells, allowing the multiple sub-shells to be interconnected, thus forming a lower shell as a whole. The connecting part is located inside the lower shell, so that the connecting part will not block the first air intake, and also makes the appearance of the lower shell simple and beautiful.

[0013] In some embodiments, the connecting portion includes a first connector and a plurality of second connectors. The first connector is disposed within the lower housing, one end of the plurality of second connectors is connected to the first connector, and the other end of the plurality of second connectors is respectively connected to the inner wall of the plurality of sub-housings.

[0014] Multiple second connectors are fixed to the first connector, allowing multiple sub-shells to be connected and fixed to each other. Furthermore, the connection between the second connectors and the inner wall of the lower shell can support the lower shell, giving it better structural strength.

[0015] In some embodiments, the upper housing has a second inner cavity, and the connecting portion further includes a third connector, one end of which is connected to the inner wall of the upper housing, and the other end of which is connected to the first connector.

[0016] The third connector can fix the upper shell to the first connector, thereby improving the fixed connection between the upper and lower shells. The third connector can also support the inner wall of the upper shell, giving the upper shell better structural strength.

[0017] In some embodiments, the upper housing has a third end and a fourth end opposite to each other, the outer diameter of the upper housing gradually decreases in the direction from the third end to the fourth end, the third end is connected to the first end, and the fourth end is provided with an air outlet.

[0018] In some embodiments, the lower housing and the upper housing have a mating surface at their joint. The lower housing further includes a first side housing and a second side housing separated by a predetermined plane, and the upper housing further includes a third side housing and a fourth side housing separated by a predetermined plane. The predetermined plane is perpendicular to the mating surface and passes through the center of the second end and the fourth end.

[0019] The first side shell forms a first projection on the preset plane, the second side shell forms a second projection on the preset plane, the third side shell forms a third projection on the preset plane, and the fourth side shell forms a fourth projection on the preset plane. The area of ​​the first projection is smaller than that of the second projection, and the area of ​​the third projection is smaller than that of the fourth projection.

[0020] The first side shell is closer to the preset plane than the second side shell, and the third side shell is closer to the preset plane than the fourth side shell. This allows the range hood shell to be closer to the wall when installed in the working environment, thus providing the operator with more space to move around.

[0021] In some embodiments, at least a portion of the outer wall of the lower housing and at least a portion of the outer wall of the upper housing are curved surfaces.

[0022] The curved outer wall makes the transition between the surfaces of the lower and upper shells smoother, which helps to separate the rising fumes to the perimeter of the lower shell.

[0023] In some embodiments, the range hood housing further includes a retaining ring, which is sleeved on the first end, and the outer diameter of the first end and the outer diameter of the third end are both smaller than the outer diameter of the retaining ring.

[0024] Some of the fumes that are not drawn in through the first air inlet can be blocked by the baffle ring, so that these fumes are located below the baffle ring and have been drawn into the lower housing.

[0025] In some embodiments, a plurality of second air inlets are provided on the portion of the lower housing adjacent to the first end, and the plurality of second air inlets are distributed at circumferential intervals along the lower housing.

[0026] The second air inlet can further enhance the oil fume extraction effect of this application. At the same time, the second air inlet can also specifically extract oil fumes that are blocked by the baffle ring.

[0027] Secondly, this application also proposes a range hood, including the aforementioned range hood housing.

[0028] In some embodiments, the range hood further includes a fan, at least a portion of which is disposed within the lower housing and adjacent to the first end.

[0029] The fan can draw oil fumes located outside the lower casing into the lower casing through the first and second air inlets.

[0030] In some embodiments, one end of the first connector is connected to the fan to support the fan, one end of the third connector is connected to the inner wall of the upper housing, and the other end of the third connector is connected to the fan.

[0031] The first connector supports the fan, fixing it inside the range hood housing. The third connector connects to the fan, further stabilizing it. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 A schematic diagram of the range hood housing structure disclosed in an embodiment of this application is shown;

[0034] Figure 2 The diagram shows a bottom view of the range hood housing disclosed in an embodiment of this application;

[0035] Figure 3 This paper shows a schematic diagram of the overall structure of the range hood housing disclosed in an embodiment of this application;

[0036] Figure 4 A side view of the range hood housing disclosed in an embodiment of this application is shown.

[0037] Figure 5 A top view of the range hood housing disclosed in an embodiment of this application is shown;

[0038] Figure 6 This paper shows a schematic diagram of the internal structure of the range hood housing disclosed in an embodiment of this application;

[0039] Figure 7 A schematic diagram of the fan structure of the range hood casing disclosed in this application embodiment is shown.

[0040] Figure label:

[0041] 100 - Lower housing, 110 - First end, 120 - Second end, 130 - First air inlet, 140 - Sub-housing, 150 - First side housing, 160 - Second side housing, 170 - Second air inlet

[0042] 200 - Upper housing, 210 - Third end, 220 - Fourth end, 230 - Third side housing, 240 - Fourth side housing, 250 - Air outlet, 260 - Extension.

[0043] 300 - Connecting part, 310 - First connecting member, 320 - Second connecting member, 330 - Third connecting member.

[0044] 400-retaining ring,

[0045] 500-fan,

[0046] 600-oil collection box. Detailed Implementation

[0047] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0048] It should be noted that all directional indications in the embodiments of the present invention are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0049] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0050] Furthermore, in this invention, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.

[0051] This application is described below with reference to the accompanying drawings and specific embodiments:

[0052] This application provides a range hood housing and a range hood, which can at least partially solve the technical problem of low oil fume extraction efficiency of range hoods.

[0053] Example 1:

[0054] Reference Figure 1This application provides a range hood housing, including a lower housing 100 and an upper housing 200, which can be used in a range hood.

[0055] The lower housing 100 and the upper housing 200 are the basic structures of the range hood housing, which can provide an installation base for at least some of the other components of the range hood housing, and can also protect at least some of its components.

[0056] The lower housing 100 has a first inner cavity and a first air inlet 130. The first air inlet 130 can be located on the surface of the lower housing 100. When the range hood housing of this application is used in a range hood, when the range hood is working, the fan 500 of the range hood can draw oil fumes into the first inner cavity of the lower housing 100 through the first air inlet 130, thereby achieving the purpose of collecting oil fumes and preventing the spread of oil fumes. The aforementioned first inner cavity can also be used to install other components of the range hood, such as the fan 500, filter screen, and circuit structure.

[0057] Specifically, the lower housing 100 also has a first end 110 and a second end 120 disposed opposite to each other. As the first end 110 of the lower housing 100 extends to the second end 120, the outer diameter of the lower housing 100 gradually decreases. Correspondingly, the outer wall of the lower housing 100 is inclined between the first end 110 and the second end 120. When a range hood using the range hood housing of this application is installed, the second end 120 is located below the first end 110, that is, the second end 120 is closer to the source of oil fumes than the first end 110. Since the lower housing 100 gradually tapers between the first end 110 and the second end 120, the space occupied by the portion of the lower housing 100 adjacent to the source of oil fumes is smaller, thus providing more space for the operator to move around. Meanwhile, the outer diameter of the second end 120 of the lower housing 100 is smaller, which allows the second end 120 to be closer to the source of oil fumes. Correspondingly, the lower housing 100 as a whole can be closer to the source of oil fumes, so that the oil fumes generated by the source of oil fumes can be more efficiently drawn into the lower housing 100.

[0058] Specifically, when the source of the oil fume is the stove, the second end 120 of the lower shell 100 with a smaller outer diameter will not obstruct the stove too much when it is close to the stove, so as to avoid affecting the operator's operation, while also allowing the operator to get closer to the stove.

[0059] When a large amount of oil fumes are generated from the source, the amount of oil fumes that can be drawn in by a single first air inlet 130 is limited, which will cause some of the oil fumes to diffuse. Therefore, multiple first air inlets 130 can be provided on the lower housing 100, and multiple first air inlets 130 can simultaneously draw in oil fumes, thereby increasing the amount of oil fumes drawn into the lower housing 100 per unit time, thus making the range hood using the range hood housing of this application more efficient in drawing in oil fumes. Since oil fumes naturally rise, the multiple first air inlets 130 can be arranged to be distributed in the direction from the first end 110 to the second end 120 of the lower housing 100, so that the multiple first air inlets 130 have a height difference with each other, thereby drawing in oil fumes from various positions into the lower housing 100.

[0060] Specifically, during the actual operation of the range hood, the oil fumes generated by the source rise and first reach the first air inlet 130 adjacent to the second end 120, where some of the fumes can be sucked in. The remaining unabsorbed fumes continue to rise to the first air inlet 130 adjacent to the second end 120 and are sucked in. Fumes not yet sucked into the lower housing 100 continue to rise to the first air inlet 130 adjacent to the first end 110 and are sucked into the lower housing 100. Through this structural arrangement, oil fumes can be sequentially sucked in by first air inlets 130 at multiple heights, preventing some fumes from leaking and spreading.

[0061] The more first air inlets 130 there are, the better the fume extraction performance of the range hood using the range hood shell of this application will be. This application does not limit the specific number of first air inlets 130.

[0062] Since cooking fumes tend to spread in all directions as they rise, multiple first air inlets 130 can be configured to be arranged circumferentially around the lower housing 100. This allows cooking fumes from all parts around the lower housing 100 to be drawn into the lower housing 100 through the first air inlets 130, thereby further improving the efficiency of the range hood in drawing in cooking fumes using the range hood housing of this application.

[0063] Because the lower housing 100 gradually tapers from the first end 110 to the second end 120, its outer wall is inclined. This inclined outer wall allows rising fumes to adhere to the wall, enabling them to rise along the outer wall of the lower housing 100.

[0064] The lower housing 100 of the range hood disclosed in this application has a gradually decreasing inner diameter from the first end 110 to the second end 120, making the outer wall of the lower housing 100 inclined. During the upward movement of oil fumes, the fumes can move along the outer wall of the lower housing 100 due to the wall adhesion effect, thus giving the lower housing 100 a guiding function for the oil fumes. Multiple first air inlets 130 are arranged in the direction from the second end 120 to the first end 110, so that the oil fumes rising along the outer wall of the lower housing 100 can be sequentially drawn in by the multiple first air inlets 130 during the upward movement, thereby making the range hood using this housing more efficient at drawing in oil fumes.

[0065] The first air inlet 130 is arranged circumferentially around the lower housing 100, so that air around the lower housing 100 can be drawn in by the first air inlet 130. Simultaneously, the smaller outer diameter of the second end 120 of the lower housing 100 compared to the first end 110 gives the lower housing 100 a cone-shaped or frustum-shaped structure. When the rising fumes come into contact with the second end 120 of the lower housing 100, the second end 120 can act as a diverter for the fumes, allowing them to be more evenly distributed around the side walls of the lower housing 100 and drawn in by the first air inlet 130 arranged circumferentially around the lower housing 100. This further improves the efficiency of the range hood in drawing in fumes using this housing.

[0066] In some implementations, such as Figure 2 and Figure 3 As shown, the orientation of the opening of the first air inlet 130 can be set to be the same as the direction from the first end 110 to the second end 120. In this way, the first air inlet 130 can be positioned opposite the source of the oil fume, so that the opening of the first air inlet 130 is opposite to the rising oil fume. The rising oil can directly enter the lower housing 100 through the first air inlet 130, thereby making the efficiency of oil fume intake through the first air inlet 130 higher.

[0067] In some implementations, such as Figure 1 , Figure 2 and Figure 3 As shown, multiple first air inlets 130 can be configured to extend circumferentially along the lower housing 100. In this way, the first air inlet 130 is an integral structure surrounding the lower housing 100. There are no breaks in the first air inlet 130, which makes the opening area of ​​the first air inlet 130 larger. Correspondingly, the efficiency of drawing in oil fumes through the first air inlet 130 is also higher.

[0068] like Figure 6As shown, multiple first air inlets 130 can divide the lower housing 100 into multiple sub-housings 140. Specifically, the number of sub-housings 140 is one more than the number of first air inlets 130. For example, when there are N first air inlets 130, the lower housing 100 includes N+1 sub-housings 140. When the first air inlets 130 are arranged circumferentially through the lower housing 100, the multiple sub-housings 140 are completely disconnected and independent of each other. In order to connect the multiple sub-housings 140 to form the lower housing 100, a connecting part 300 can be provided inside the lower housing 100. The connecting part 300 is connected to all the multiple sub-housings 140, so that the multiple sub-housings 140 can be connected to each other to form a whole. The connecting part 300 is located inside the lower housing 100 so that the connecting part 300 will not block the first air inlet 130, thus allowing the first air inlet 130 to still have a large opening area. At the same time, the connecting part 300 located inside the lower housing 100 can also make the appearance of the range hood housing of this application more concise and beautiful.

[0069] Specifically, such as Figure 6 As shown, the connecting part 300 includes a first connecting member 310 and a plurality of second connecting members 320. One end of each of the second connecting members 320 can be configured to connect to the inner wall of a plurality of sub-housings 140, and the other end of each of the second connecting members 320 is connected to the first connecting member 310. In this way, the first connecting member 310 can provide a mounting base for the other end of the second connecting members 320, thereby supporting the plurality of second connecting members 320. Correspondingly, the plurality of sub-housings 140 can be connected to the first connecting member 310 through the second connecting members 320, thereby fixing the plurality of sub-housings 140 together to form an integral structure. At the same time, the connection between the second connecting member 320 and the inner wall of the sub-housing 140 also allows the second connecting member 320 to support the inner wall of the sub-housing 140, thereby giving the sub-housing 140 better structural strength.

[0070] To improve the reliability of the connection between the multiple sub-shells 140 via the connecting portion 300, each sub-shell 140 can be connected to multiple second connecting members 320. Specifically, the multiple second connecting members 320 connected to the same sub-shell 140 can be arranged circumferentially along the sub-shell 140. This allows the connection points between the multiple second connecting members 320 and the sub-shell 140 to be distributed circumferentially along the inner wall of the sub-shell 140, enabling the multiple second connecting members 320 to connect to the sub-shell 140 in multiple directions and positions. This improves the reliability of the connection between the sub-shell 140 and the first connecting member 310 via the second connecting members 320. Simultaneously, the multiple second connecting members 320 can also support the sub-shell 140 at multiple locations along the inner wall of the sub-shell 140, further enhancing the structural strength of the sub-shell 140 and the lower shell 100.

[0071] The second connector 320 can be a metal structural component, specifically made of aluminum alloy or aluminum-magnesium alloy. This provides both good structural strength for the first connector 310 and the second connector 320, while also reducing their relative weight, thus reducing the overall weight of the range hood casing. Consequently, this facilitates installation and transportation of the range hood casing. Of course, the first connector 310 and the second connector 320 can also be made of materials with excellent structural strength and relative density, such as carbon fiber. This application does not limit the specific materials used for the first connector 310 and the second connector 320.

[0072] In some embodiments, the first air inlet 130 described above may also include multiple sub-air inlet sections, which are spaced apart circumferentially along the lower housing 100. This arrangement ensures that the oil fumes surrounding the sub-housing 140 are drawn into the smaller housing. Simultaneously, the spaced-apart sub-air inlet sections provide housing connection sections between adjacent sections, preventing complete disconnection between adjacent sub-housing 140s and allowing them to be connected. Consequently, no additional connecting structures are needed within the sub-housing 140 to connect the multiple sub-housing 140s, simplifying the structure of the range hood housing and reducing the manufacturing complexity.

[0073] In some implementations, such as Figure 1 As shown, the upper housing 200 has a third end 210 and a fourth end 220 arranged opposite to each other. As the third end 210 of the upper housing 200 extends to the fourth end 220, the outer diameter of the upper housing 200 gradually decreases. This allows the volume of the upper housing 200 to gradually decrease in the direction from the first end 110 to the second end 120, resulting in a smaller space occupied by the upper housing 200 and thus a smaller overall volume and space occupied by the range hood housing. The third end 210 of the upper housing 200 is connected to the first end 110 of the lower housing 100, thus fixing the upper housing 200 and the lower housing 100 together. Since the third end 210 of the upper housing 200 is the part with the largest outer diameter, and the first end 110 of the lower housing 100 is the largest part, the contact area between the lower housing 100 and the upper housing 200 is relatively the largest, resulting in better connection reliability between the upper housing 200 and the lower housing 100. Specifically, when the lower shell 100 and the upper shell 200 are fixed by welding, the large mating surface results in a large welding area between the lower shell 100 and the upper shell 200.

[0074] Meanwhile, the junction of the first end 110 of the lower housing 100 and the third end 210 of the upper housing 200 has a large internal space. Large equipment, such as a high-power fan, can be installed in this space, so that the range hood using this application has good oil fume extraction performance while occupying little space.

[0075] In some implementations, such as Figure 6 As shown, the connecting portion 300 further includes a third connecting member 330. One end of the third connecting member 330 is connected to the first connecting member 310, and the other end of the third connecting member 330 can be connected to the inner wall of the upper housing 200. This allows the connecting portion 300 to fix the lower housing 100 and the upper housing 200 together, resulting in a more stable and reliable connection between the lower housing 100 and the upper housing 200. Simultaneously, the connection of one end of the third connecting member 330 to the inner wall of the upper housing 200 allows the third connecting member 330 to also support the inner wall of the upper housing 200, thus giving the upper housing 200 better structural strength.

[0076] Multiple third connectors 330 can be provided. One end of each third connector 330 can be arranged along the circumference of the first connector 310, and the other end of each third connector 330 can be arranged along the circumference of the inner wall of the upper housing 200. This can improve the connection between the lower housing 100 and the upper housing 200, and also support all parts of the inner wall of the upper housing 200, thereby further improving the structural strength of the upper housing 200.

[0077] The upper housing 200 has a second inner cavity. After the fumes enter the first inner cavity of the lower housing 100 through the first air inlet 130, they can continue to rise into the second inner cavity of the upper housing 200 and be discharged through the air outlet 250 of the upper housing 200. The air outlet 250 can be located at the fourth end 220 of the upper housing 200. The shape of the second inner cavity can be matched to the shape of the upper housing 200. Specifically, the volume of the second inner cavity gradually decreases from the third end 210 to the fourth end 220. This shrinking space in the second inner cavity allows the fumes to maintain a relatively fast rising rate as they rise to the fourth end 220 of the upper housing 200 and are discharged through the air outlet 250. This ensures that the fumes maintain a relatively fast rising rate at the air outlet 250, preventing external cold air from flowing back into the second inner cavity from the air outlet 250. Therefore, the range hood using the housing of this application has higher efficiency in both fumes intake and exhaust. In order to expel the fumes from the upper housing 200 more quickly, an extension 260 can be connected to the air outlet 250 of the upper housing 200. The extension 260 also has a structure in which the inner diameter gradually decreases in its axial direction, which can further accelerate the exhaust of fumes.

[0078] In some implementations, such as Figure 4As shown, the lower housing 100 includes a first side housing 150 and a second side housing 160 formed by a preset plane. The preset plane is perpendicular to the mating surface of the lower housing 100 and the upper housing 200, and passes through the center of the second end 120 of the lower housing 100. Specifically, the first side housing 150 and the second side housing 160 are located on opposite sides of the preset plane. The first side housing 150 can form a first projection on the preset plane, and the second side housing 160 can form a second projection on the preset plane. The area of ​​the first projection is smaller than the area of ​​the second projection. Therefore, the volume of the first side housing 150 is smaller than the volume of the second side housing 160. The difference in distance between the various parts of the sidewall of the first side housing 150 and the preset plane is small, thereby making the sidewall of the first side housing 150 closer to the preset plane than the sidewall of the second side housing 160. When a range hood using the casing of this application is installed in a working environment, such as a kitchen, the first side casing 150 can be positioned facing the wall, and the second side casing 160 facing away from the wall. This allows the smaller size of the first side casing 150 to allow all parts of its sidewalls to be closer to the wall, thus bringing the lower casing 100 closer to the wall as a whole. Correspondingly, the second side casing 160, facing away from the wall, can also be closer to the wall, providing more space for the operator on one side of the second side casing 160.

[0079] The preset plane also passes through the center of the fourth end 220 of the upper housing 200, thereby making the upper housing 200 include a third side housing 230 and a fourth side housing 240 separated by the preset plane. Specifically, the third side housing 230 and the fourth side housing 240 are located on both sides of the preset plane. The third side housing 230 can form a third projection on the preset plane, and the fourth side housing 240 can form a fourth projection on the preset plane. The area of ​​the third projection is smaller than the area of ​​the fourth projection. Therefore, the volume of the third side housing 230 is smaller than the volume of the fourth side housing 240. The difference in distance between the various parts of the sidewall of the third side housing 230 and the preset plane is small, thereby making the sidewall of the third side housing 230 closer to the preset plane than the sidewall of the fourth side housing 240. When a range hood using the casing of this application is installed in a working environment, such as a kitchen, the third side casing 230 can be positioned facing the wall, and the fourth side casing 240 facing away from the wall. This smaller overall size of the third side casing 230 allows all parts of its sidewalls to be closer to the wall, thus bringing the upper casing 200 closer to the wall as a whole. Correspondingly, the fourth side casing 240, facing away from the wall, can also be closer to the wall, providing more space for the operator on one side of the fourth side casing 240.

[0080] When the first side housing 150 and the third side housing 230 are both on the side facing the wall, the range hood housing of this application can be made to be closer to the wall as a whole.

[0081] In some implementations, such as Figure 1 and Figure 3 As shown, at least a portion of the outer wall of the lower housing 100 and at least a portion of the outer wall of the upper housing 200 are curved surfaces. When the entire outer wall of the lower housing 100 and the upper housing 200 are curved surfaces, both the lower housing 100 and the upper housing 200 are frustum structures. The surfaces of the frustum structure upper housing 200 and lower housing 100 are without sharp edges and have a smooth transition, which is more conducive to separating the rising oil fumes and allowing the oil fumes to better diffuse to the perimeter of the lower housing 100.

[0082] It should be noted that the outer walls of the lower shell 100 and the upper shell 200 may also include multiple planar outer walls, and these multiple planar outer walls are not coplanar, thus making the lower shell 100 and the upper shell 200 a polygonal prism structure. Of course, the outer walls of the upper shell 200 and the lower shell 100 may also be a structure with partially curved surfaces and partially planar surfaces. This application does not limit the specific shape of the upper shell 200 and the lower shell 100.

[0083] In some implementations, such as Figure 1 and Figure 3 The range hood housing is also equipped with a baffle ring 400, which is positioned between the first end 110 of the lower housing 100 and the second end 120 of the upper housing 200. Specifically, the baffle ring 400 is fitted at the connection between the first end 110 and the second end 120. The outer diameter of the baffle ring 400 is larger than the outer diameter of the first end 110 of the lower housing 100, and also larger than the outer diameter of the third end 210 of the upper housing 200. This allows the baffle ring 400 to block some of the fumes that are not drawn in by the first air inlet 130 from spreading further. Simultaneously, the baffle ring 400's placement at the connection between the first end 110 and the third end 210 strengthens the connection between them, thereby enhancing the connection between the lower housing 100 and the upper housing 200.

[0084] The retaining ring 400 can be connected to the connection between the first end 110 and the third end 210 by a snap-fit ​​connection, so that the retaining ring 400 is detachable for easy cleaning. Of course, the retaining ring 400 can also be fixed to the connection between the first end 110 and the third end 210 by welding, so that the retaining ring 400 can also help fix the first end 110 and the third end 210, making the connection between the first end 110 and the third end 210 more stable.

[0085] Of course, the retaining ring 400 can also be sleeved on the first end 110 or the second end 120, and this application does not limit this.

[0086] In some implementations, such as Figure 1 , Figure 2 and Figure 3 As shown, in order to allow the fumes blocked by the baffle ring 400 to be drawn into the lower housing 100, a second air inlet 170 can be provided in the portion of the lower housing 100 near its first end 110. Correspondingly, the second air inlet 170 can be located close to the baffle ring 400. When some of the fumes not drawn in by the first air inlet 130 are blocked by the baffle ring 400, they will remain on the lower side of the baffle ring 400. Since the second air inlet 170 is close to the baffle ring 400 and located on the lower housing 100, the second air inlet 170 is also located on the lower side of the baffle ring 400. In this way, the fumes blocked by the baffle ring 400 can be drawn in by the second air inlet 170, thereby enabling the range hood using the range hood housing of this application to have better fumes absorption performance.

[0087] Specifically, among the plurality of first air inlets 130, there is one first air inlet 130 that is relatively closest to the first end 110. The second air inlet 170 is located between the first air inlet 130 and the second end 120. In this way, the second air inlet 170 can draw in the oil fumes blocked by the baffle ring 400. Multiple second air inlets 170 can be provided, and the multiple second air inlets 170 can be arranged circumferentially along the lower housing 100. In this way, the multiple second air inlets 170 can draw in the oil fumes from all parts located below the baffle ring 400, thereby giving the range hood using this application better oil fume extraction performance.

[0088] The second air inlet 170 can be formed by cutting a groove on the surface of the lower housing 100, so that the opening of the second air inlet 170 can be opposite to the oil fumes located below the baffle ring 400, thereby making it easier for these oil fumes to be drawn into the lower housing 100.

[0089] Example 2:

[0090] Based on the above-mentioned range hood housing, this application also proposes a range hood including the above-mentioned range hood housing.

[0091] In some implementations, such as Figure 6 and Figure 7 As shown, the range hood also includes a fan 500. At least part of the fan 500 is disposed inside the lower housing 100, and the fan 500 is also disposed adjacent to the first end 110 of the lower housing 100. After the fan 500 is started, it can create a negative pressure environment inside the lower housing 100, thereby drawing the oil fumes outside the lower housing 100 into the lower housing 100 through the first air inlet 130 and the second air inlet 170, thereby achieving the purpose of oil fume extraction.

[0092] Specifically, the aforementioned range hood housing includes a lower housing 100 and an upper housing 200. The first end 110 of the lower housing 100 and the third end 210 of the upper housing 200 are joined to form the range hood housing. Since the outer diameters of the lower housing 100 gradually decrease from the first end 110 to the second end 120, and the outer diameters of the upper housing 200 gradually decrease from the third end 210 to the fourth end 220, the outer diameters of the lower housing 100 and the upper housing 200 are the largest. Consequently, the internal space at the joint between the lower housing 100 and the upper housing 200 is the largest. Therefore, the fan 500 can be located at the joint between the first end 110 and the second end 120. Specifically, part of the fan 500 can be located within the lower housing 100, and part of the fan 500 can be located within the upper housing 200. This allows the range hood to use a larger volume and higher power fan 500.

[0093] In some implementations, to ensure that the fan 500 can be fixedly installed inside the range hood housing, the fan 500 can be connected to the first connecting member 310 so that the first connecting member 310 supports the fan 500. Specifically, the first connecting member 310 can be a rod-shaped structural member. One end of each of the multiple second connecting members 320 is connected to the side wall of the first connecting member 310, and the end of the first connecting member 310 supports the fan 500, thereby fixing the fan 500 inside the range hood housing. One end of the third connecting member 330 can be connected to the inner wall of the upper housing 200, and the other end of the third connecting member 330 can be connected to the fan 500, thereby further fixing the fan 500 and ensuring that the fan 500 fixed to the range hood housing remains stable.

[0094] To further improve the stability of the fan 500, multiple third connectors 330 can be provided. One end of each third connector 330 is connected to a different part of the inner wall of the upper housing 200, and the other end of each third connector 330 is connected to a different part of the surface of the fan 500, thereby providing support for the fan 500 in multiple directions. Specifically, the ends of the multiple third connectors 330 connected to the inner wall of the upper housing 200 can be distributed circumferentially along the inner wall of the upper housing 200, thus providing support for the upper housing 200 at multiple locations.

[0095] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

Claims

1. A range hood housing, characterized in that, include: A lower housing (100) having a first inner cavity, the lower housing (100) having opposing first ends (110) and second ends (120), the lower housing (100) having a gradually decreasing outer diameter in the direction from the first end (110) to the second end (120); and, The upper housing (200) is connected to the first end (110), and the upper housing (200) has an air outlet (250) communicating with the first inner cavity. The lower housing (100) is provided with a plurality of first air inlets (130), which are distributed in the direction from the first end (110) to the second end (120), and any one of the first air inlets (130) is arranged along the circumference of the lower housing (100).

2. The range hood housing according to claim 1, characterized in that, The first air inlet (130) is arranged circumferentially through the lower housing (100).

3. The range hood housing according to claim 2, characterized in that, Multiple first air inlets (130) divide the lower housing (100) into multiple sub-housings (140). The range hood housing also includes a connecting part (300), which is disposed inside the lower housing (100) and connected to the multiple sub-housings (140).

4. The range hood housing according to claim 3, characterized in that, The connecting part (300) includes a first connecting member (310) and a plurality of second connecting members (320). The first connecting member (310) is disposed inside the lower housing (100). One end of the plurality of second connecting members (320) is connected to the first connecting member (310), and the other end of the plurality of second connecting members (320) is connected to the inner wall of the plurality of sub-housings (140) respectively.

5. The range hood housing according to claim 4, characterized in that, The upper housing (200) has a second inner cavity, and the connecting part (300) further includes a third connecting member (330). One end of the third connecting member (330) is connected to the inner wall of the upper housing (200), and the other end of the third connecting member (330) is connected to the first connecting member (310).

6. The range hood housing according to claim 1, characterized in that, The upper housing (200) has a third end (210) and a fourth end (220) opposite each other. The outer diameter of the upper housing (200) gradually decreases in the direction from the third end (210) to the fourth end (220). The third end (210) is connected to the first end (110), and the fourth end (220) is provided with an air outlet (250).

7. The range hood housing according to claim 6, characterized in that, The lower housing (100) and the upper housing (200) have a mating surface at their joint. The lower housing (100) further includes a first side housing (150) and a second side housing (160) separated by a preset plane. The upper housing (200) further includes a third side housing (230) and a fourth side housing (240) separated by a preset plane. The preset plane is perpendicular to the mating surface and passes through the center of the second end (110) and the fourth end (220). The first side shell (150) forms a first projection on the preset plane, the second side shell (160) forms a second projection on the preset plane, the third side shell (230) forms a third projection on the preset plane, and the fourth side shell (240) forms a fourth projection on the preset plane. The area of ​​the first projection is smaller than that of the second projection, and the area of ​​the third projection is smaller than that of the fourth projection.

8. The range hood housing according to claim 6, characterized in that, At least part of the outer wall of the lower housing (100) and at least part of the outer wall of the upper housing (200) are arc surfaces.

9. The range hood housing according to claim 6, characterized in that, The range hood housing also includes a retaining ring (400), which is sleeved on the first end (110). The outer diameter of the first end (110) and the outer diameter of the third end (210) are both smaller than the outer diameter of the retaining ring (400).

10. The range hood housing according to claim 1, characterized in that, The lower housing (100) is provided with a plurality of second air inlets (170) in the portion adjacent to the first end (110), and the plurality of second air inlets (170) are distributed at circumferential intervals along the lower housing (100).

11. A range hood, characterized in that, Includes the range hood housing as described in any one of claims 1-9.

12. The range hood according to claim 11, characterized in that, The range hood also includes a fan (500), at least a portion of which is disposed within the lower housing (100) and adjacent to the first end (110).

13. A range hood, characterized in that, Includes the range hood housing and fan (500) as described in claim 5, one end of the first connector (310) is connected to the fan (500) and supports the fan (500), one end of the third connector (330) is connected to the inner wall of the upper housing (200), and the other end of the third connector (330) is connected to the fan (500).

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