Range hood structure and air conditioning range hood

Abstract

The present application relates to a range hood structure and an air conditioner range hood. The range hood structure includes a condenser assembly having an exhaust port; a fume blower including a fume blower housing having an air inlet, and the range hood assembly is capable of driving outside air into the air inlet; and a flow guide located on the outside of the fume blower housing and having a flow guide cavity connecting the exhaust port and the air inlet; wherein the flow guide cavity has a flow guide arc surface defining it, and the flow guide arc surface is arranged around at least a portion of the air inlet to guide the airflow discharged from the exhaust port to the air inlet. By providing a flow guide to connect the exhaust port of the condenser assembly and the air inlet of the range hood assembly, and by smoothly guiding the air discharged from the exhaust port to the air inlet through the flow guide arc surface, the heat dissipating air discharged from the condenser assembly can be discharged together with the oil and smoke in the range hood assembly, so that the oil and smoke will not flow back into the air inlet and enter the exhaust port, thereby preventing the evaporator and condenser assembly of the air conditioner range hood from being contaminated.

Description

Technical Field

[0001] The present application relates to the technical field of kitchen appliances, and in particular to a range hood structure and an air-conditioning range hood. Background Art

[0002] The kitchen is the primary place where people cook, and the quality of the kitchen air directly impacts the cooking experience. Kitchens are hot in the summer and cold in the winter, creating a need for both cooling and heating. To address this, various air conditioners and range hoods have been invented to cool the kitchen air in the summer and provide heated air in the winter, enhancing cooking comfort.

[0003] The smoke exhaust channel and heat dissipation channel of traditional air-conditioning range hoods are independent of each other, and a three-way valve is used to gather the airflow and discharge it into a common flue. However, the air volume at the smoke exhaust channel is greater than the air volume at the heat dissipation channel, causing the oil smoke in the smoke exhaust channel to flow back into the heat dissipation duct, thereby contaminating the evaporator and condenser of the air-conditioning range hood. Summary of the Invention

[0004] Based on this, it is necessary to propose a range hood structure and an air conditioning range hood that can prevent the oil smoke from flowing back into the heat dissipation duct when the traditional air conditioning range hood is in use, thereby polluting the evaporator and condenser of the air conditioning range hood.

[0005] In a first aspect, the present application provides a range hood structure, comprising:

[0006] a condenser assembly having an exhaust vent;

[0007] The fume fan comprises a fume fan housing, wherein the fume fan housing is provided with an air inlet, and the fume fan can drive external air into the air inlet; and

[0008] The guide member is located outside the range fume fan housing and has a guide cavity connecting the air outlet and the air inlet;

[0009] The guide cavity has a guide arc surface defining it, and the guide arc surface is arranged around at least a portion of the air inlet to guide the air flow discharged from the air outlet to the air inlet.

[0010] In one embodiment, the guide arc surface includes a first arc surface. On a first radial section of the guide member along the air inlet, a first radial distance between the first arc surface and the air inlet gradually decreases along the airflow direction in the guide cavity.

[0011] In one embodiment, a downstream end of the first arc surface along the airflow direction is tangent to the air inlet or a concentric circle of the air inlet.

[0012] In one embodiment, the condenser assembly is located on one side of the range fume fan along the first direction, and the guide member is formed with a guide inlet connected to the guide cavity on the side facing the condenser assembly. The guide inlet and the exhaust outlet are arranged opposite to each other along the first direction, and the projection of the first arc surface toward the condenser assembly along the first direction covers at least part of the guide inlet.

[0013] In one embodiment, in a second direction perpendicular to the first direction, there is a distance between the center of the air outlet and the center of the air inlet.

[0014] In one embodiment, the guide arc surface also includes a second arc surface, the first arc surface and the second arc surface are connected in sequence along the airflow direction, and on the first section, the second radial distance between the second arc surface and the air inlet gradually increases along the airflow direction.

[0015] In one embodiment, the first arc surface and the second arc surface are cocircular.

[0016] In one embodiment, the central angle of the first arc surface is greater than the central angle of the second arc surface.

[0017] In one embodiment, the guide arc surface also includes a third arc surface, the second arc surface and the third arc surface are connected in sequence along the airflow direction, and the second arc surface and the third arc surface are tangent at the connection point, and the radius of the third arc surface is smaller than the radius of the second arc surface.

[0018] In one embodiment, the guide cavity further has a first guide plane defining it, the first guide plane and the guide arc surface are connected in sequence along the airflow direction in the guide cavity, and the first guide plane and the guide arc surface are tangent at the connection point, and the first guide plane is inclined toward the exhaust port relative to the axis of the exhaust port.

[0019] In one embodiment, the guide cavity further has a second guide plane defining it, the second guide plane is connected to the downstream end of the guide arc surface along the airflow direction in the guide cavity, and the guide arc surface and the second guide plane are tangent at the connection.

[0020] In one embodiment, the range hood structure further includes a fume housing having an oil fume space, a fume fan is disposed in the oil fume space, and the fume fan housing further includes a fume inlet communicating with the oil fume space;

[0021] The guide member has a guide inlet connected to the guide cavity, and the air inlet is connected to the guide inlet and the oil fume space.

[0022] In one embodiment, the guide member and the condenser assembly are spaced apart to form a first communication space therebetween, and the air inlet is connected to the guide inlet and the oil fume space through the first communication space.

[0023] In one embodiment, the range hood structure further includes a fume housing, the fume housing having a fume space, and the fume fan is arranged in the fume space;

[0024] A distance is provided between the air guide and the oil fume fan housing along the axial direction of the air inlet to form a second communicating space, and the second communicating space is communicated with the oil fume space.

[0025] In one embodiment, the range fume fan housing has a first side wall with an air inlet, and the first side wall is inclined toward the air outlet relative to the axis of the air outlet.

[0026] In one embodiment, the oil fume blower includes a centrifugal fan, the centrifugal fan includes fan blades, the oil fume blower housing includes a volute, and the fan blades are arranged in the centrifugal volute.

[0027] In one embodiment, the range fume fan housing is further provided with a smoke inlet, and the smoke inlet and the air inlet are respectively provided on opposite sides of the range fume fan housing.

[0028] In one embodiment, the range hood fan housing is further provided with a smoke exhaust port, which is connected to the air inlet. The range hood fan structure further includes a check valve, which is provided at the smoke exhaust port.

[0029] In one embodiment, the range fume fan housing is further provided with a smoke inlet, and the smoke inlet and the air inlet are respectively provided on opposite sides of the range fume fan housing.

[0030] In one embodiment, the range hood fan housing is further provided with a smoke exhaust port, which is connected to the air inlet. The range hood fan structure further includes a check valve, which is provided at the smoke exhaust port.

[0031] In one embodiment, the range hood structure further includes an oil fume housing and an air conditioning housing, the oil fume housing has an oil fume space, the air conditioning housing has an air conditioning space, the oil fume fan is arranged in the oil fume space, and the condenser assembly is arranged in the air conditioning cavity;

[0032] The range hood structure also includes a partition for separating the oil fume space from the air-conditioning space. The partition is provided with a connecting port. One end of the condenser assembly having an exhaust port is sealed and fixed on the partition, and the exhaust port is connected to the connecting port.

[0033] In one embodiment, the range hood structure further includes a switch component, which is disposed at the exhaust port and is used to open or close the exhaust port.

[0034] In one embodiment, the range hood structure includes an oil fume shell, the oil fume shell has an oil fume space, and the oil fume shell also has a back plate that defines the oil fume space. The guide member has an air guide cover, and the first side of the air guide cover has a first opening. The air guide cover is installed on the back plate through the first side, and defines a air guide cavity between the air guide cover and the back plate.

[0035] In a second aspect, an air-conditioning range hood is provided, comprising the range hood structure described above.

[0036] The above-mentioned range hood structure and air-conditioning range hood, by providing a guide member to connect the exhaust port of the condenser assembly and the air inlet of the range hood assembly, and smoothly guide the air discharged from the exhaust port to the air inlet through the guide arc surface, can make the heat dissipation air discharged from the condenser assembly be discharged together with the smoke oil in the range hood assembly, so that the oil smoke will not flow back to the air inlet and enter the exhaust port, thereby not contaminating the evaporator and condenser assembly of the air-conditioning range hood. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 A structural diagram showing a portion of the structure of an air-conditioning range hood in an embodiment of the present application is shown;

[0038] Figure 2 Shown Figure 1 A schematic front view of a partial structure of an air-conditioning range hood shown;

[0039] Figure 3 A schematic structural diagram of a flow guide member in an embodiment of the present application is shown;

[0040] Figure 4 for Figure 3 A schematic front view of the structure of the air guide cover in the air guide shown;

[0041] Figure 5 A structural diagram of an air-conditioning range hood in an embodiment of the present application is shown.

[0042] Reference numerals:

[0043] Range hood structure 100, condenser assembly 10, exhaust port 11, fume fan 20, fume fan housing 21, air inlet 211, smoke exhaust port 212, first side wall 213, smoke inlet 214, range hood fan 22, flow guide 30, flow guide cavity 31, flow guide arc surface 311, first arc surface 3111, second arc surface 3112, third arc surface 3113, first flow guide plane 312, second flow guide plane 313, flow guide inlet 32, flow guide cover 33, first opening 331, second opening 332, fume housing 40, fume space 41, back plate 42, air conditioning housing 50, air conditioning space 51, first connecting space 60, check valve 70, air conditioning range hood 200, air outlet 210, first section AA, first radial distance L1, second radial distance L2. DETAILED DESCRIPTION

[0044] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0045] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application pertains. The terms used herein in the specification of this application are for the purpose of describing specific embodiments only and are not intended to limit this application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0046] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0047] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0048] In this application, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0049] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0050] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0051] The drawings are not drawn to a 1:1 scale, and the relative sizes of the elements in the drawings are drawn only as examples and not necessarily according to the true scale.

[0052] Figure 1 A structural diagram showing a portion of the structure of an air-conditioning range hood in an embodiment of the present application is shown; Figure 2 Shown Figure 1 A schematic front view of a partial structure of an air-conditioning range hood shown; Figure 3 A schematic structural diagram of a flow guide member in an embodiment of the present application is shown.

[0053] See attached Figures 1 to 3 In one embodiment of the present application, a range hood structure 100 is provided, comprising a condenser assembly 10, a fume blower 20, and a flow guide 30. The range hood structure 100 of the present application is applicable to air conditioner range hoods, and may also be applied to other devices suitable for the range hood structure 100, without limitation.

[0054] The condenser assembly 10 has an exhaust port 11. Specifically, during cooling, the temperature of the condenser assembly 10 is high, so when in use, the condenser assembly 10 needs to be cooled and the heat after cooling needs to be discharged to the outside through the exhaust port 11.

[0055] The range hood fan 20 includes a range hood fan housing 21, which defines an air inlet 211. The range hood fan 20 draws outside air into the air inlet 211. More specifically, the range hood fan 20 also includes blades 22 disposed within the range hood fan housing 21. The rotation of the blades 22 generates negative pressure, thereby drawing outside air into the range hood fan housing 21 through the air inlet 211. Specifically, the range hood fan housing 21 defines a smoke exhaust port 212 communicating with the interior thereof. Air drawn into the range hood fan housing 21 can be discharged through the smoke exhaust port 212.

[0056] The guide member 30 is located outside the range fume fan housing 21 and defines a guide cavity 31 that connects the exhaust port 11 and the air inlet 211. The guide cavity 31 is defined by a curved guide surface 311 that surrounds at least a portion of the air inlet 211 to guide airflow from the exhaust port 11 to the air inlet 211.

[0057] It should be pointed out that the guide arc surface 311 is arranged around at least part of the air inlet 211, and the surrounding method is not necessarily 360 degrees, it can be 180 degrees or 90 degrees, etc., and there is no specific limitation. The first radial distance between the guide arc surface 311 and the edge of the air inlet 211 can be kept equal or unequal, and there is no specific limitation.

[0058] By setting up a guide member 30 to connect the exhaust port 11 of the condenser assembly 10 and the air inlet 211 of the fume fan 20, and smoothly guiding the air discharged from the exhaust port 11 to the air inlet 211 through the guide arc surface 311, the heat dissipation air discharged from the condenser assembly 10 can be discharged together with the oil and smoke in the fume fan 20, so that the oil smoke will not flow back to the air inlet 211 and enter the exhaust port 11, thereby preventing the evaporator and condenser assembly 10 of the air conditioner hood from being contaminated.

[0059] In the examples of this application, please refer to Figure 1 and 2 , the condenser assembly 10 is located on one side of the fume blower 20 along the first direction. Specifically, the first direction is Figure 2 Vertical orientation shown.

[0060] Furthermore, the air outlet 11 of the condenser assembly 10 is arranged along the first direction toward the oil fume blower 20. Therefore, the air outlet 11 of the condenser assembly 10 can directly blow out the heat-dissipating air from below to the oil fume blower 20, shortening the exhaust path.

[0061] Furthermore, a guide inlet 32 communicating with the guide cavity 31 is formed on a side of the guide member 30 facing the condenser assembly 10 . The guide inlet 32 and the air outlet 11 are arranged opposite to each other along the first direction.

[0062] In this way, the heat dissipating air blown out from the air outlet 11 can directly enter the guide inlet 32 without changing the flow direction, thereby reducing kinetic energy loss and shortening the discharge path.

[0063] Please refer to Figure 3 and 4 Specifically, in the embodiment of the present application, the air guide 30 includes an air guide cover 33 and a cover plate. The air guide cover 33 has a first opening 331 on its first side, and the cover plate covers the first opening 331. The cover plate and the air guide cover 33 define an air guide inlet 32 on a second side adjacent to the first side. Specifically, the range hood structure 100 includes a range hood fume housing 40, which defines an oil fume space 41. The range hood housing 40 also has a back panel 42 that defines the oil fume space 41. The cover plate can be part of the back panel 42 of the air conditioner hood 200. The air guide cover 33 is mounted on the back panel 42 via its first side, and defines a flow guide cavity 31 between the cover plate and the back panel 42.

[0064] Furthermore, the air guide 30 has a second opening 332 on a side opposite to the cover plate, and the second opening 332 covers the air inlet 211. Specifically, the inner contour shape of the second opening 332 is the same as the inner contour shape of the air inlet 211.

[0065] In the embodiment of the present application, the axis of the air outlet 11 intersects the axis of the air inlet 211. In this way, the arrangement of the condenser assembly 10 and the range hood fan 20 of the range hood structure 100 can be made more reasonable and compact.

[0066] Specifically, the fume fan housing 21 has a first side wall 213 with an air inlet 211 formed thereon. The first side wall 213 is tilted relative to the axis of the air outlet 11 .

[0067] Please refer to Figure 1 and 2 In the embodiment of the present application, the condenser assembly 10 further includes a condenser and a first fan. The first fan is capable of driving outside air toward the condenser and exhausting it through the exhaust port 11. Under the action of the first fan, the air blows toward the condenser, dissipating heat and cooling the condenser. The heat-dissipated air is then discharged through the exhaust port 11.

[0068] In other embodiments, the first fan may be omitted. Instead, the negative pressure of the fume fan 20 drives the outside air toward the condenser, and the heat-dissipated air is discharged through the exhaust port 11 and enters the air inlet 211 .

[0069] In the embodiment of the present application, the range hood fan housing 21 further includes a smoke inlet 214, through which external fumes can enter the interior of the range hood fan housing 21. The smoke inlet 214 and the air inlet 211 are independently disposed. Specifically, the smoke inlet 214 and the air inlet 211 are disposed on opposite sides of the range hood fan housing 21. This reduces interference between the incoming airflow and improves the efficiency of the incoming airflow. In other embodiments, the range hood fan housing 21 may also lack the smoke inlet 214, with the air inlet 211 acting as the smoke inlet 214.

[0070] Please refer to Figure 2 and Figure 4 In some embodiments, the guide arc surface 311 includes a first arc surface 3111. On the first radial section AA of the guide member 30 along the air inlet 211, a first radial distance L1 between the first arc surface 3111 and the air inlet 211 gradually decreases along the airflow direction in the guide cavity 31.

[0071] It should be noted that the first radial distance L1 between the first arc surface 3111 and the edge of the air inlet 211 refers to the distance between the first arc surface 3111 and the intersection of the line connecting the center of the air inlet 211 and the edge of the air inlet 211.

[0072] In this way, by setting the first curved surface 3111, the air introduced into the guide cavity 31 can be successfully guided to the air inlet 211, and since the first radial distance between the first curved surface 3111 and the air inlet 211 gradually decreases along the airflow direction in the guide cavity 31, the air can be buffered in the early stage of its entry to avoid the air speed being too fast, which affects the effect of air entering the air inlet 211.

[0073] In addition, the air can generate a vortex after passing through the first arc surface 3111. The generation of the vortex can accelerate the air intake speed, thereby improving the air intake efficiency.

[0074] Preferably, a downstream end of the first arc surface 3111 along the airflow direction is tangent to the air inlet 211 or a concentric circle of the air inlet 211 .

[0075] Specifically, the air inlet 211 is circular. In other embodiments, it may be elliptical, or a special shape in which only a portion of the downstream end near the first curved surface 3111 along the airflow direction is curved, and the specific shape is not limited.

[0076] In this way, air can enter the air inlet 211 tangentially, thereby making the air flow smoother.

[0077] Please refer to Figures 1 to 4In the embodiment of the present application, the range hood fan 20 is a centrifugal fan including blades. The range hood fan housing 21 includes a centrifugal volute, and the blades 22 are disposed within the centrifugal volute. Thus, the design of the centrifugal fan and the centrifugal volute better coordinates the air introduced through the guide arc surface 311, thereby improving the efficiency of the centrifugal fan.

[0078] In the embodiment of the present application, the downstream end of the first arc surface 3111 along the airflow direction is tangent to the concentric circle of the air inlet 211. That is, there is a certain first radial distance between the downstream end of the first arc surface 3111 along the airflow direction and the air inlet 211.

[0079] In the embodiment of the present application, the projection of the first arc surface 3111 along the first direction toward the condenser assembly 10 covers at least a portion of the air guide inlet 32 .

[0080] In this way, the heat dissipation air blown out from the air outlet 11 directly hits the first arc surface 3111 through the guide inlet 32, and then quickly enters the air inlet 211 under the guidance of the first arc surface 3111. Therefore, kinetic energy loss is further reduced and the air intake speed is accelerated.

[0081] In some embodiments, in a second direction perpendicular to the first direction, there is a distance between the center of the air outlet 11 and the center of the air inlet 211 .

[0082] Specifically, the second direction is Figure 2 Horizontal direction shown.

[0083] Since there is a distance between the center of the exhaust port 11 and the center of the air inlet 211, the air entering from the guide inlet 32 is not directly discharged from the air inlet 211, but needs to pass through the guide arc surface 311 before being discharged from the air inlet 211, thereby improving the guide effect.

[0084] Please refer to Figures 1 to 4 In an embodiment of the present application, the guide cavity 31 further has a first guide plane 312 defining it. The first guide plane 312 and the guide arc surface 311 are sequentially connected along the airflow direction in the guide cavity 31, and the first guide plane 312 and the guide arc surface 311 are tangent at the connection point. The first guide plane 312 is tilted toward the exhaust port 11 relative to the axis of the exhaust port 11.

[0085] By providing the first guide plane 312 at the upstream end of the guide arc surface 311 along the airflow direction within the guide cavity 31, air can be guided smoothly into the guide arc surface 311. Furthermore, the upstream end of the first guide plane 312 along the airflow direction is more open, allowing for more heat dissipation air discharged from the exhaust port 11 to be introduced, thereby improving the heat dissipation effect.

[0086] Furthermore, the upstream end of the first guide plane 312 along the airflow direction is used to define the guide inlet 32 .

[0087] Therefore, the air entering the guide inlet 32 can be directly guided by the first guide plane 312 to the guide arc surface 311, thereby improving the guiding effect.

[0088] Specifically, the first guide plane 312 and the first arc surface 3111 are sequentially connected along the airflow direction.

[0089] Please refer to Figure 4 In some embodiments, the guide arc surface 311 further includes a second arc surface 3112. The first arc surface 3111 and the second arc surface 3112 are connected in sequence along the airflow direction. On the first section AA, the second radial distance L2 between the second arc surface 3112 and the air inlet 211 gradually increases along the airflow direction.

[0090] Since the second radial distance L2 between the second arc surface 3112 and the air inlet 211 gradually increases along the airflow direction, the flow speed of the air can be slowed down when it is guided to the downstream end of the first arc surface 3111 along the airflow direction, thereby allowing more air to flow into the air inlet 211.

[0091] Furthermore, the first arc surface 3111 and the second arc surface 3112 are cocircular.

[0092] The first arc surface 3111 and the second arc surface 3112 are cocircular, which means that the first arc surface 3111 and the second arc surface 3112 are arc segments on the same circle.

[0093] By setting the first arc surface 3111 and the second arc surface 3112 to be cocircular, the structure of the guide arc surface 311 can be simplified and the sudden change at the connection between the first arc surface 3111 and the second arc surface 3112 can be avoided, which would affect the air flow speed and thus the air intake effect.

[0094] Furthermore, the central angle of the first curved surface 3111 is greater than the central angle of the second curved surface 3112. In this way, a wind shear is formed after the air flows through the first curved surface 3111, and the wind is further directed to the second curved surface 3112, thereby forming a vortex at the second curved surface 3112, thereby improving the diversion effect.

[0095] In some embodiments, the guide arc surface 311 also includes a third arc surface 3113, the second arc surface 3112 and the third arc surface 3113 are connected in sequence along the airflow direction, the second arc surface 3112 and the third arc surface 3113 are tangent at the connection point, and the radius of the third arc surface 3113 is smaller than the radius of the second arc surface 3112.

[0096] By setting a third arc surface 3113 at the downstream end of the second arc surface 3112 along the airflow direction, and making the second arc surface 3112 and the third arc surface 3113 tangent at the connection point, the radius of the third arc surface 3113 is smaller than the radius of the second arc surface 3112, so that the downstream end of the third arc surface 3113 along the airflow direction can be close to the air inlet 211, and the air buffered by the third arc surface 3113 can return to the air inlet 211 again, thereby improving the air intake effect.

[0097] In some embodiments, the guide cavity 31 further has a second guide plane 313 defining it, the second guide plane 313 is connected to the downstream end of the guide arc surface 311 along the airflow direction in the guide cavity 31, and the guide arc surface 311 and the second guide plane 313 are tangent at the connection.

[0098] By providing a second guide plane 313 connected to the downstream end of the guide arc surface 311 along the airflow direction in the guide cavity 31, the air that is not guided to the air inlet 211 by the guide arc surface 311 will find it difficult to flow in a direction away from the air inlet 211, and is therefore more likely to be sucked into the air inlet 211 under the negative pressure of the range hood blower 20.

[0099] Specifically, the second guide plane 313 is parallel to the first direction.

[0100] Please refer to Figure 1 and Figure 2 In some embodiments, the range hood structure 100 further includes a fume housing 40 , the fume housing 40 has a fume space 41 , and the fume fan 20 is disposed in the fume space 41 .

[0101] Furthermore, a distance is provided between the air guide 30 and the oil fume fan housing 21 along the axial direction of the air inlet 211 to form a second communicating space, and the second communicating space is communicated with the oil fume space 41 .

[0102] By providing the second communicating space, the oil smoke can also enter the air inlet 211 through the second communicating space, so that the air inlet can be used not only to introduce heat-dissipating air but also to introduce oil smoke.

[0103] In some embodiments, the range hood structure 100 further includes an air-conditioning housing 50 , the air-conditioning housing 50 has an air-conditioning space 51 , and the condenser assembly 10 is disposed in the air-conditioning space 51 .

[0104] In order to prevent oil smoke from entering the air-conditioning space 51 through the oil smoke space 41, the range hood structure 100 also includes a partition for separating the oil smoke space 41 from the air-conditioning space 51. The partition is provided with a connecting port. The condensing component 10 has an exhaust port 11 at one end sealed and fixed on the partition, and the exhaust port 11 is connected to the connecting member 61.

[0105] In some preferred embodiments, the range hood structure 100 further includes a switch component, which is disposed at the air outlet 11 and is used to open or close the air outlet 11. Specifically, the switch component is disposed at the communication port.

[0106] By providing a switch, the exhaust vent 11 can be closed when the air conditioning components, including the condenser assembly 10 and the evaporator assembly, in the air conditioning hood 200 are not in use, thereby preventing oil smoke from entering the exhaust vent 11 through the oil smoke space 41 and contaminating the air conditioning components. When the air conditioning components are needed, the exhaust vent 11 can be opened to dissipate heat.

[0107] Among them, the control of opening or closing the exhaust outlet 11 by the switch component can be achieved through the main controller of the air conditioning range hood 200. The form of opening or closing the exhaust outlet 11 by the switch component can be mechanical, hydraulic, electrical, etc., which is not limited here.

[0108] In the embodiment of the present application, the fume fan housing 21 further defines a fume inlet 214 communicating with the fume space 41 . The guide member 30 includes a guide inlet 32 communicating with the guide cavity 31 , and the air inlet 211 communicates with both the guide inlet 32 and the fume space 41 .

[0109] By setting the air inlet 211 to be connected with the guide inlet 32 and the oil fume space 41, if there is air entering the guide cavity 31 but unable to enter from the air inlet 211 and forced to be discharged from the guide inlet 32, it can flow into the oil fume space 41 and be sucked into the oil fume fan housing 21 by the smoke inlet 214. In this way, the situation of insufficient heat dissipation is reduced and the heat dissipation capacity of the range hood structure 100 is improved.

[0110] Furthermore, the guide member 30 and the condenser assembly 10 are spaced apart to form a first communication space 60 therebetween, and the air inlet 211 is connected to the guide inlet 32 and the oil fume space 41 through the first communication space 60 .

[0111] The method of forming the first communicating space 60 communicating with the air inlet 211 and the guide inlet 32 by spacing the guide member 30 and the condenser assembly 10 is simple and makes the range hood structure 100 more compact.

[0112] Please refer to Figure 1 and Figure 2 In some embodiments, the range hood structure 100 further includes a check valve 70 , which is disposed at the smoke exhaust port 212 .

[0113] By providing the check valve 70 , it is possible to prevent external air from entering the interior of the oil fume fan housing 21 through the smoke exhaust port 212 , thereby affecting the smoke exhaust and heat dissipation effects.

[0114] Please refer to Figures 1 to 5Based on the same inventive concept, the present application also provides an air-conditioning range hood 200, comprising the range hood structure 100 in any of the above embodiments.

[0115] Specifically, the air conditioner hood 200 further has an air outlet 210, which is located at the top of the air conditioner hood 200 and communicates with a smoke exhaust port 212. More specifically, the air conditioner hood 200 further has a smoke exhaust pipe communicating with the air outlet 210 and the smoke exhaust port 212.

[0116] The range hood structure 100 and the air conditioner range hood provided by the embodiment of the present application have the following beneficial effects:

[0117] By setting up a guide member 30 to connect the exhaust port 11 of the condenser assembly 10 and the air inlet 211 of the fume fan 20, and smoothly guiding the air discharged from the exhaust port 11 to the air inlet 211 through the guide arc surface 311, the heat dissipation air discharged from the condenser assembly 10 can be discharged together with the oil and smoke in the fume fan 20, so that the oil smoke will not flow back to the air inlet 211 and enter the exhaust port 11, thereby preventing the evaporator and condenser assembly 10 of the air conditioner hood from being contaminated.

[0118] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0119] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art may make various modifications and improvements without departing from the scope of the present invention, all of which fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A range hood structure (100), characterized in that: include: A condenser assembly (10) having an air outlet (11); An oil fume fan (20) comprises an oil fume fan housing (21), wherein the oil fume fan housing (21) is provided with an air inlet (211), and the oil fume fan (20) is capable of driving external air into the air inlet (211); and A flow guide (30) is located outside the oil fume fan housing (21) and has a flow guide cavity (31) communicating with the air outlet (11) and the air inlet (211); The guide cavity (31) has a guide arc surface (311) defining it, and the guide arc surface (311) is arranged around at least a portion of the air inlet (211) to guide the airflow discharged from the air outlet (11) to the air inlet (211); The guide arc surface (311) includes a first arc surface (3111), and on a first radial section (AA) of the guide member (30) along the air inlet (211), a first radial distance (L1) between the first arc surface (3111) and the air inlet (211) gradually decreases along the airflow direction in the guide cavity (31); the condenser assembly (10) is located on one side of the fume blower (20) along the first direction, and the guide member (30) is formed with a guide inlet (32) connected to the guide cavity (31) on a side facing the condenser assembly (10), the guide inlet (32) and the air outlet (11) are arranged opposite to each other along the first direction, and a projection of the first arc surface (3111) toward the condenser assembly (10) along the first direction covers at least a portion of the guide inlet (32).

2. The range hood structure (100) according to claim 1, characterized in that: The downstream end of the first curved surface (3111) along the airflow direction is tangent to the air inlet (211) or a concentric circle of the air inlet (211).

3. The range hood structure (100) according to claim 1, characterized in that: In a second direction perpendicular to the first direction, there is a distance between the center of the air outlet (11) and the center of the air inlet (211).

4. The range hood structure (100) according to any one of claims 1 to 3, characterized in that: The guide arc surface (311) further includes a second arc surface (3112), the first arc surface (3111) and the second arc surface (3112) being connected in sequence along the airflow direction, and on the first cross section (AA), a second radial distance (L2) between the second arc surface (3112) and the air inlet (211) gradually increases along the airflow direction.

5. The range hood structure (100) according to claim 4, characterized in that: The first arc surface (3111) and the second arc surface (3112) are cocircular.

6. The range hood structure (100) according to claim 5, characterized in that: The central angle of the first arc surface (3111) is greater than the central angle of the second arc surface (3112).

7. The range hood structure (100) according to claim 4, characterized in that: The guide arc surface (311) further includes a third arc surface (3113), the second arc surface (3112) and the third arc surface (3113) are connected in sequence along the airflow direction, and the second arc surface (3112) and the third arc surface (3113) are tangent at the connection point, and the radius of the third arc surface (3113) is smaller than the radius of the second arc surface (3112).

8. The range hood structure (100) according to claim 1, characterized in that: The guide cavity (31) further has a first guide plane (312) defining it, the first guide plane (312) and the guide arc surface (311) are sequentially connected along the airflow direction in the guide cavity (31), and the first guide plane (312) and the guide arc surface (311) are tangent at the connection point, and the first guide plane (312) is inclined relative to the axis of the exhaust port (11) toward the exhaust port (11).

9. The range hood structure (100) according to claim 1, characterized in that: The guide cavity (31) further has a second guide plane (313) defining it, the second guide plane (313) being connected to the downstream end of the guide arc surface (311) along the airflow direction in the guide cavity (31), and the guide arc surface (311) and the second guide plane (313) being tangent at the connection point.

10. The range hood structure (100) according to claim 1, characterized in that: The range hood structure further comprises an oil fume housing (40), the oil fume housing (40) having an oil fume space (41), the oil fume fan (20) being arranged in the oil fume space (41), and the oil fume fan housing (21) further comprising a smoke inlet (214) communicating with the oil fume space (41); The guide member (30) has a guide inlet (32) in communication with the guide cavity (31), and the air inlet (211) is in communication with both the guide inlet (32) and the oil fume space (41).

11. The range hood structure (100) according to claim 10, characterized in that: The guide member (30) and the condenser assembly (10) are spaced apart to form a first communication space (60) therebetween, and the air inlet (211) is connected to the guide inlet (32) and the oil fume space (41) through the first communication space (60).

12. The range hood structure (100) according to claim 1, characterized in that: The fume hood structure further comprises an oil fume housing (40), the oil fume housing (40) having an oil fume space (41), and the oil fume fan (20) is arranged in the oil fume space (41); There is a distance between the guide member (30) and the oil fume fan housing (21) along the axial direction of the air inlet (211) to form a second communicating space, and the second communicating space is communicated with the oil fume space (41).

13. The range hood structure (100) according to claim 1, characterized in that: The fume fan housing (21) has a first side wall (213) on which the air inlet (211) is formed, and the first side wall (213) is arranged to be inclined toward the air outlet (11) relative to the axis of the air outlet (11).

14. The range hood structure (100) according to claim 1, characterized in that: The oil fume fan (20) comprises a centrifugal fan, the centrifugal fan comprises fan blades, the oil fume fan housing (21) comprises a volute, and the fan blades are arranged in the volute.

15. The range hood structure (100) according to claim 1, characterized in that: The fume fan housing (21) is further provided with a smoke inlet (214), and the smoke inlet (214) and the air inlet (211) are respectively provided on two opposite sides of the fume fan housing (21).

16. The range hood structure (100) according to claim 1, characterized in that: The fume fan housing (21) is further provided with a smoke exhaust port (212), the smoke exhaust port (212) being in communication with the air inlet (211), and the range hood structure (100) further comprises a check valve (70), the check valve (70) being provided at the smoke exhaust port (212).

17. The range hood structure (100) according to claim 1, characterized in that: The range hood structure further comprises an oil fume housing (40) and an air conditioning housing (50), wherein the oil fume housing (40) has an oil fume space (41), and the air conditioning housing (50) has an air conditioning space (51), the oil fume fan (20) is arranged in the oil fume space (41), and the condenser assembly (10) is arranged in the air conditioning space (51); The range hood structure (100) further comprises a partition for separating the oil fume space (41) from the air-conditioning space (51), wherein the partition is provided with a communication port, and the condenser assembly (10) has one end of the exhaust port (11) sealed and fixed on the partition, and the exhaust port (11) is communicated with the communication port.

18. The range hood structure (100) according to claim 1, characterized in that: The range hood structure (100) further comprises a switch component, which is arranged at the air outlet (11) and is used to open or close the air outlet (11).

19. The range hood structure (100) according to claim 1, characterized in that: The range hood structure (100) includes an oil fume housing (40), the oil fume housing (40) having an oil fume space (41), the oil fume housing (40) further having a back plate (42) defining the oil fume space (41), the air guide (30) having an air guide cover (33), a first side of the air guide cover (33) having a first opening (331), the air guide cover (33) being mounted on the back plate (42) through the first side, and defining a air guide cavity (31) between the air guide cover and the back plate (42).

20. An air conditioning range hood (200), characterized in that: It comprises the range hood structure (100) according to any one of claims 1 to 19.

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