A range hood

Abstract

The application provides a range hood, belonging to the technical field of household appliances. The range hood comprises a body, a fan and a separator; the body defines a cavity, and the body is provided with a wind collecting opening and an air outlet opening which are in communication with the cavity; the fan is connected with the body and arranged in the cavity, and the air outlet end of the fan is close to the air outlet opening; the separator is accommodated in the cavity, and the separator comprises a shell, a motor and at least one first filter screen; the shell is connected with the body, and the shell defines an airflow channel in communication with the cavity along a first direction; the motor is connected with the shell, and the motor is provided with a first output shaft; the first filter screen is connected with the first output shaft; an inclined portion is arranged on the edge of the side of the shell which is close to the wind collecting opening along the first direction, the side of the inclined portion which faces the motor defines a flow guide inclined groove, and the end of the inclined portion which is away from the motor along the first direction is provided with a flow guide opening which is in communication with the flow guide inclined groove. The range hood provided by the application can realize the purposes of flow guiding and collecting grease, thereby improving the use experience of users.

Description

Technical Field

[0001] This application relates to the field of household appliance technology, and more particularly to a range hood. Background Technology

[0002] After prolonged use, the filter screen of existing range hoods becomes covered with dense mesh holes, which are supposed to separate grease when fumes are drawn in. However, when grease accumulates in large quantities on the filter screen, it can clog these mesh holes, much like covering the air vent with a thick layer of grease. This clogged filter screen creates significant air resistance, resulting in a severe decrease in effective suction power. Utility Model Content

[0003] In view of this, the purpose of this application is to overcome the shortcomings of the prior art and provide a range hood.

[0004] This application provides the following technical solution: a range hood, having a first direction and a second direction perpendicular to each other, including: The body defines a cavity, and the body has an air inlet and an air outlet communicating with the cavity; A fan is connected to the main body and disposed in the cavity, with the air outlet of the fan close to the exhaust port; A separator, housed in the cavity, the separator including a housing, a motor and at least one first filter screen, the housing being connected to the body, the housing defining an airflow channel communicating with the cavity along the first direction; The motor is connected to the housing, and the motor has a first output shaft, with the first filter screen connected to the first output shaft. The housing has an inclined portion on the edge of the side near the air inlet along the first direction. The inclined portion defines a guide groove on the side facing the motor. The end of the inclined portion away from the motor along the first direction has a guide port that communicates with the guide groove.

[0005] In some embodiments, the first filter screen is disposed inside the housing, and the edge of the first filter screen is slidably connected to the inner wall of the housing.

[0006] In some embodiments, the separator includes a plurality of first filters, which are spaced apart along the first direction.

[0007] In some embodiments, the motor has a second output shaft on the side opposite to the air inlet along the first direction, and the separator includes a second filter screen connected to the second output shaft.

[0008] In some embodiments, the separator includes a plurality of second filters, which are spaced apart along the first direction.

[0009] In some embodiments, the first filter and the second filter are spaced apart along the first direction.

[0010] In some embodiments, the separator includes a support frame disposed between the first filter screen and the second filter screen, with both ends of the support frame connected to the inner wall of the housing, and the motor connected to the support frame.

[0011] In some embodiments, the separator includes a partition surrounding the periphery of the housing, the side of the partition facing away from the housing being connected to the inner wall of the body, and dividing the cavity into a first cavity and a second cavity, the first cavity and the second cavity being connected through the airflow channel.

[0012] In some embodiments, the body includes a fume hood and a fan hood, the fume hood defining the first cavity and the fan hood defining the second cavity; The air collection port is located on the side of the fume hood facing away from the fan hood along the first direction, and the air exhaust port is located on the side of the fan hood.

[0013] In some embodiments, the fume hood is provided with an oil storage component on the side opposite to the fan hood, and the flow guide is directed toward the oil storage component along the first direction.

[0014] The embodiments of this application have the following advantages: The range hood provided by this application defines a guide groove on the side of the inclined part facing the motor, that is, the angle between the guide groove and the first direction is an acute angle, that is, the guide groove is an annular inclined groove. The end of the inclined part away from the motor along the first direction is provided with a guide port that communicates with the guide groove, so that the grease adhering to the inner wall of the shell can slide down into the guide groove, so that the grease is collected by the guide groove, and flows into the guide port under the inclined guiding action of the guide groove, and is discharged from the guide port into the grease collection cup, thereby achieving the purpose of guiding and collecting grease, thereby improving the user's user experience.

[0015] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This application provides a schematic diagram of the structure of a range hood from one perspective, illustrating some embodiments thereof. Figure 2 This application provides a schematic diagram of the internal structure of a range hood from one perspective, based on some embodiments thereof. Figure 3 This application provides a schematic diagram of the structure of a range hood from another perspective, illustrating some embodiments thereof. Figure 4 It shows Figure 3 Sectional view of section AA; Figure 5 This application provides a schematic diagram of the structure of a separator in a range hood from one perspective, based on some embodiments of the present application. Figure 6 A cross-sectional view of a separator in a range hood provided by some embodiments of this application is shown.

[0018] Explanation of key component symbols: 100-Body; 110-Cavity; 120-Air inlet; 130-Exhaust outlet; 200-Fan; 300-Separator; 310-Housing; 320-Motor; 330-First filter screen; 311-Airflow channel; 321-First output shaft; 312-Inclined part; 313-Guide groove; 314-Guide port; 322-Second output shaft; 340-Second filter screen; 350-Bracket; 400-Partition; 111-First cavity; 112-Second cavity; 140-Fume hood; 150-Fan hood; 141-Oil storage component.

[0019] Z - First direction; Y - Second direction; X - Third direction. Detailed Implementation

[0020] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0021] It should be noted that when an element is said to be "fixed" to another element, it can be directly on the other element or there may be an intervening element. When an element is said to be "connected" to another element, it can be directly connected to the other element or there may be an intervening element. Conversely, when an element is said to be "directly" on another element, there is no intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0022] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0023] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the template description is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0025] like Figures 1 to 6 As shown, some embodiments of this application provide a range hood with a first direction Z and a second direction Y that are perpendicular to each other. The range hood is mainly used to improve the convenience and efficiency of grease collection and ensure the grease filtration quality of the range hood. The range hood includes a body 100, a fan 200 and a separator 300.

[0026] The body 100 defines a cavity 110. The body 100 has an air collecting port 120 and an air exhaust port 130 that communicate with the cavity 110, so that oil fumes can enter the cavity 110 through the air collecting port 120 and be discharged through the air exhaust port 130, thereby forming a guiding effect on the oil fumes.

[0027] The fan 200 is connected to the main body 100 and is placed in the cavity 110. The air outlet of the fan 200 is close to the exhaust port 130 so that the fan 200 can generate negative pressure at the air collection port 120 when it is running, so that the gas or fumes outside the range hood can enter the cavity 110 through the air collection port 120, flow through the fan 200, and be discharged from the exhaust port 130.

[0028] The separator 300 is housed in the cavity 110 to absorb grease from the fumes flowing through the cavity 110, thereby preventing grease from adhering to walls, curtains, clothing, and furniture, keeping the air in the kitchen and the adjacent living room and dining room fresh, eliminating odors, and achieving the purpose of air purification.

[0029] In this embodiment, the separator 300 includes a housing 310, a motor 320, and at least one first filter screen 330. It is understood that the number of first filter screens 330 can be one, two, or more, and can be specifically set according to the actual situation.

[0030] The housing 310 is connected to the body 100. The connection method between the housing 310 and the body 100 includes any one of the following: threaded connection, bolted connection, snap-fit, adhesive connection, magnetic connection, tenon and mortise connection or integral molding, which can be specifically set according to the actual situation.

[0031] In addition, the housing 310 defines an airflow channel 311 communicating with the cavity 110 along the first direction Z, so that the gas entering the cavity 110 through the air inlet 120 can pass through the airflow channel 311 and be discharged from the exhaust port.

[0032] Because the filter screen is covered with dense mesh, it can separate grease when it is sucked in oil fumes. When a lot of grease accumulates on the filter screen, it will clog these meshes, just like covering the air vent with a thick layer of grease. This will cause the clogged filter screen to create huge air resistance, resulting in a serious reduction in effective suction power.

[0033] In this embodiment, the motor is disposed in the airflow channel 311, and the motor 320 is connected to the housing 310. The connection method between the motor and the housing 310 includes any one of threaded connection, bolt connection, snap-fit, adhesive connection, magnetic connection, tenon and mortise connection or integral molding, which can be specifically set according to the actual situation to ensure the stability of the motor in the airflow channel 311.

[0034] The motor 320 has a first output shaft 321. It should be noted that the axis of the first output shaft 321 is parallel to the first direction Z. The first filter screen 330 is connected to the first output shaft 321, and the axis of the first filter screen 330 coincides with the axis of the first output shaft 321.

[0035] Understandably, when the motor starts, the first output shaft 321 drives the first filter screen 330 to rotate synchronously. It should be noted that when the fan 200 is running, the fumes from outside the range hood enter the cavity 110 through the air inlet 120, flow through the airflow channel 311, and are absorbed and filtered by the first filter screen 330. The filtered gas is then discharged from the exhaust port, thus purifying and filtering the fumes and preventing grease or other impurities from spreading throughout the kitchen and living space.

[0036] In this embodiment, when the range hood is in use, the grease in the fumes can adhere to the first filter screen 330 as the fumes flow through the airflow channel 311. After each use of the range hood, the separator 300 motor 320 starts and drives the first filter screen 330 to rotate at high speed through the first output shaft 321, generating centrifugal force to dry the grease on the first filter screen 330, so as to avoid the accumulation of grease on the first filter screen 330, thereby ensuring the filtration quality and filtration efficiency of the first filter screen 330 for the grease in the fumes, and thus ensuring the filtration quality of the range hood for the grease in the fumes.

[0037] As the first filter screen 330 rotates at high speed driven by the first output shaft 321, the grease adhering to the first filter screen 330 is thrown onto the inner wall of the housing 310 under the action of centrifugal force. Under the action of gravity, the grease flows along the first direction Z towards the air collection port 120 on the inner wall of the housing 310. If the grease adhering to the inner wall of the housing 310 is not collected, it will drip from the air collection port 120 onto the stove or onto the inner wall of the main body 100, making it difficult to clean and affecting the user's experience.

[0038] Based on this, in this application, the housing 310 is provided with an inclined portion 312 on the edge of the side of the housing 310 near the air inlet 120 along the first direction Z. It should be noted that the angle between the inclined portion 312 and the first direction Z is an acute angle.

[0039] It should be noted that the inclined portion 312 defines a guide groove 313 on the side facing the motor 320, that is, the angle between the guide groove 313 and the first direction Z is an acute angle, that is, the guide groove 313 is an annular inclined groove. The inclined portion 312 is provided with a guide port 314 communicating with the guide groove 313 at the end away from the motor 320 along the first direction Z, so that the grease adhering to the inner wall of the housing 310 can slide down into the guide groove 313, so that the grease is collected by the guide groove 313, and flows into the guide port 314 under the inclined guiding action of the guide groove 313, and is discharged from the guide port 314 into the grease collection cup, so as to achieve the purpose of guiding and collecting grease, thereby improving the user experience.

[0040] like Figure 1 and Figure 5 As shown, in some embodiments of this application, the range hood further includes a third direction X that is perpendicular to both the first direction Z and the second direction Y. In some embodiments, the inclined portion 312 is inclined along the second direction Y. Optionally, in other embodiments, the inclined portion 312 is inclined along the third direction X.

[0041] like Figure 4 and Figure 6 As shown, in some embodiments of this application, the first filter screen 330 is disposed within the housing 310, and the edge of the first filter screen 330 is slidably connected to the inner wall of the housing 310 to ensure the stability and smoothness of the synchronous rotation of the first filter screen 330 driven by the first output shaft 321 during motor operation. Secondly, by increasing the effective coverage area of ​​the first filter screen 330, oil fumes are prevented from escaping through the gap between the first filter screen 330 and the inner wall of the housing 310, thereby improving the filtration efficiency and quality of the first filter screen 330 for grease in the oil fumes flowing through the airflow channel 311.

[0042] like Figures 4 to 6 As shown, in some embodiments of this application, the first output shaft 321 is located on the side of the motor 320 near the air inlet 120, and the axis of the first output shaft 321 is parallel to the first direction Z.

[0043] It should be noted that in this embodiment, the housing 310 is a cylindrical structure with a central opening, and the first filter screen 330 is a disc-shaped structure. The axis of the first filter screen 330 coincides with the axis of the first output shaft 321, and the axis of the first filter screen 330 coincides with the axis of the housing 310. This ensures the stability and smoothness of the sliding connection between the first filter screen 330 and the inner wall of the housing 310 during rotation, and at the same time, it can improve the effective filtration coverage area of ​​the first filter screen 330 in its flow channel, thereby improving the filtration quality and filtration efficiency.

[0044] In some embodiments of this application, the separator 300 includes a plurality of first filter screens 330, which are spaced apart along the first direction Z.

[0045] It is understandable that by increasing the number of first filter screens 330, a step-by-step filtration structure can be formed in the airflow channel 311, thereby further improving the filtration quality and efficiency of grease in the fumes flowing through the airflow channel 311.

[0046] The number of first filter screens 330 can be set according to the actual situation.

[0047] like Figures 4 to 6 As shown, in some embodiments of this application, the motor is provided with a second output shaft 322 on the side opposite to the air inlet 120 along the first direction Z, and the axis of the second output shaft 322 coincides with the axis of the first output shaft 321.

[0048] It is understandable that the first output shaft 321 is located on the side of the motor facing the air inlet 120 along the first direction Z, and the second output shaft 322 is located on the side of the motor facing the fan 200 along the first direction Z.

[0049] In this embodiment, the separator 300 includes a second filter screen 340, which is connected to the second output shaft 322. The second filter screen 340 is disposed inside the housing 310, and its edge is slidably connected to the inner wall of the housing 310. This ensures the stability and smoothness of the synchronous rotation of the second filter screen 340 driven by the second output shaft 322 during motor operation. This allows the grease in the fumes to adhere to the second filter screen 340 as the fumes flow through the airflow channel 311. After each use of the range hood, the separator 300 motor 320 starts and drives the second filter screen 340 to rotate at high speed via the second output shaft 322, generating centrifugal force to dry the grease on the second filter screen 340. This prevents grease from accumulating on the second filter screen 340, ensuring the filtration quality and efficiency of the second filter screen 340 for grease in the fumes, and thus ensuring the filtration quality of the range hood for grease in the fumes. Secondly, by increasing the effective coverage area of ​​the second filter screen 340, oil fumes are prevented from being discharged from the gap between the second filter screen 340 and the inner wall of the housing 310, thereby improving the filtration efficiency and filtration quality of the second filter screen 340 for the grease in the oil fumes flowing through the airflow channel 311.

[0050] like Figure 4 and Figure 6 As shown, in some embodiments of this application, the separator 300 includes a plurality of second filter screens 340, which are spaced apart along the first direction Z.

[0051] It is understandable that by increasing the number of second filter screens 340, a step-by-step filtration structure is formed in the airflow channel 311, thereby further improving the filtration quality and efficiency of grease in the fumes flowing through the airflow channel 311. Furthermore, the number of second filter screens 340 can be specifically set according to actual conditions.

[0052] It should be noted that the first filter screen 330 and the second filter screen 340 are arranged at intervals along the first direction Z to ensure the stability and smoothness of the first filter screen 330 and the second filter screen 340 during rotation.

[0053] like Figure 6 As shown, in some embodiments of this application, the separator 300 includes a bracket 350, which is disposed between the first filter screen 330 and the second filter screen 340. The two ends of the bracket 350 are respectively connected to the inner wall of the housing 310, and the motor is connected to the bracket 350 to ensure the stability of the motor in the airflow channel 311.

[0054] The connection methods between the motor and the bracket 350, and between the bracket 350 and the housing 310, include any one of bolt connection, threaded connection, snap-fit, adhesive connection, tenon and mortise connection or integral molding, which can be specifically set according to the actual situation.

[0055] In this embodiment, the bracket 350 is detachably connected to the housing 310 so that the bracket 350 can be removed from the housing 310, thereby facilitating the removal of the motor, the first filter screen 330, and the second filter screen 340 from the housing 310 for replacement, maintenance, or cleaning.

[0056] like Figure 4 and Figure 5 As shown, in some embodiments of this application, the separator 300 includes a partition 400, which is disposed around the periphery of the housing 310. The side of the partition 400 facing away from the housing 310 is connected to the inner wall of the body 100, and the partition 400 divides the cavity 110 into a first cavity 111 and a second cavity 112. The first cavity 111 and the second cavity 112 are connected through the airflow channel 311.

[0057] It should be noted that the air inlet 120 is connected to the first cavity 111, and the exhaust outlet 130 is connected to the second cavity 112. This means that during the operation of the fan 200, oily fumes from outside the main body 100 can enter the first cavity 111 through the air inlet 120. The gas in the first cavity 111 then flows through the airflow channel 311, is filtered by the first filter screen 330 and the second filter screen 340, and is discharged into the second cavity 112, and finally exits through the exhaust outlet 130. In other words, the partition 400 ensures that all oily fumes entering the first cavity 111 can enter the airflow channel 311, thereby guaranteeing the filtration efficiency and quality of the first filter screen 330 and the second filter screen 340.

[0058] like Figures 2 to 4 As shown, in some embodiments of this application, the body 100 includes a fume hood 140 and a fan hood 150, the fume hood 140 defining a first cavity 111 and the fan hood 150 defining a second cavity 112. In some embodiments, a partition 400 is connected to the fan hood 150, thereby connecting the separator 300 to the fan hood 150. Optionally, in other embodiments, the partition 400 is connected to the fume hood 140, thereby connecting the separator 300 to the fume hood 140.

[0059] The air collection port 120 is located on the side of the fume hood 140 opposite to the fan hood 150 along the first direction Z, so that the oil fumes outside the range hood can enter the first cavity 111 of the fume hood 140 through the air collection port 120, and after being filtered by the first filter screen 330 and the second filter screen 340 in the airflow channel 311, they enter the second cavity 112 of the fan hood 150 and are discharged from the exhaust port 130 located on one side of the fan hood 150.

[0060] like Figures 1 to 4 As shown, in some embodiments of this application, the fume hood 140 is provided with an oil storage component 141 on the side opposite to the fan hood 150, and the guide port 314 is oriented toward the oil storage component 141 along the first direction Z, so as to collect the grease discharged from the guide port 314.

[0061] Among them, the oil storage component 141 can be one of the oil storage cup, oil storage box, and oil storage cavity, and can be specifically set according to the actual situation.

[0062] In all examples shown and described herein, any specific values ​​should be interpreted as merely exemplary and not as limitations; therefore, other examples of exemplary embodiments may have different values.

[0063] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0064] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these modifications and improvements all fall within the protection scope of this application.

Claims

1. A range hood having a first direction and a second direction perpendicular to each other, characterized in that, include: The body defines a cavity, and the body has an air inlet and an air outlet communicating with the cavity; A fan is connected to the main body and disposed in the cavity, with the air outlet of the fan close to the exhaust port; A separator, housed in the cavity, the separator including a housing, a motor and at least one first filter screen, the housing being connected to the body, the housing defining an airflow channel communicating with the cavity along the first direction; The motor is connected to the housing, and the motor has a first output shaft, with the first filter screen connected to the first output shaft. The housing has an inclined portion on the edge of the side near the air inlet along the first direction. The inclined portion defines a guide groove on the side facing the motor. The end of the inclined portion away from the motor along the first direction has a guide port that communicates with the guide groove.

2. The range hood according to claim 1, characterized in that, The first filter screen is disposed inside the housing, and the edge of the first filter screen is slidably connected to the inner wall of the housing.

3. The range hood according to claim 1, characterized in that, The separator includes a plurality of first filter screens, which are spaced apart along the first direction.

4. The range hood according to claim 2, characterized in that, The motor has a second output shaft on the side opposite to the air inlet along the first direction, and the separator includes a second filter screen, which is connected to the second output shaft.

5. The range hood according to claim 4, characterized in that, The separator includes a plurality of second filter screens, which are spaced apart along the first direction.

6. The range hood according to claim 4, characterized in that, The first filter screen and the second filter screen are arranged at intervals along the first direction.

7. The range hood according to claim 4, characterized in that, The separator includes a support frame disposed between the first filter screen and the second filter screen. Both ends of the support frame are connected to the inner wall of the housing, and the motor is connected to the support frame.

8. The range hood according to any one of claims 1 to 7, characterized in that, The separator includes a partition plate surrounding the periphery of the housing. The side of the partition plate opposite to the housing is connected to the inner wall of the main body, dividing the cavity into a first cavity and a second cavity. The first cavity and the second cavity are connected through the airflow channel.

9. The range hood according to claim 8, characterized in that, The main body includes a fume hood and a fan hood, the fume hood defining the first cavity and the fan hood defining the second cavity; The air collection port is located on the side of the fume hood facing away from the fan hood along the first direction, and the air exhaust port is located on the side of the fan hood.

10. The range hood according to claim 9, characterized in that, The fume hood is provided with an oil storage component on the side opposite to the fan hood, and the guide port faces the oil storage component along the first direction.

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