Range hood and its operation method

Abstract

The present invention provides a range hood and an operating method. The range hood includes a smoke collecting hood and a flexible oil net. The smoke collecting hood has a smoke collecting cavity, a smoke collecting port and a smoke exhaust port. Both the smoke collecting port and the smoke exhaust port are connected to the smoke collecting cavity. The flexible oil net is removably arranged at the smoke exhaust port. A plurality of through holes are distributed on the flexible oil net. The flexible oil net is made of a flexible material. The smoke collecting port and the smoke collecting cavity are used to collect oil smoke, and the smoke exhaust port is used to exhaust oil smoke. The flexible oil net can condense grease and provide safety protection. Since the flexible oil net is made of a flexible material and is removably arranged at the smoke exhaust port, compared with the existing oil net made of metal, it will not hurt hands due to burrs and is easy to disassemble and clean.

Description

Technical Field

[0001] The present invention relates to the technical field of range hoods, and in particular to a range hood and an operating method thereof. Background Art

[0002] As one of the indispensable appliances in the kitchen, the range hood effectively solves the problem of kitchen air quality and improves people's quality of life. Existing range hoods all have an oil screen component, which has the function of condensing grease and also has the function of safety protection. Existing oil screen components are made of metal and are usually made by stamping process. In this way, the oil screen component has punching burrs, which makes it difficult to clean and easy to scratch hands. Summary of the invention

[0003] The invention provides a range hood and an operating method to solve the problem that the oil screen in the range hood is difficult to clean.

[0004] In order to solve the above-mentioned problem, according to one aspect of the present invention, the present invention provides a range hood, comprising: a smoke collecting hood, the smoke collecting hood having a smoke collecting chamber, a smoke collecting port and a smoke exhaust port, the smoke collecting port and the smoke exhaust port are both connected to the smoke collecting chamber; a flexible oil net, the flexible oil net is removably arranged at the smoke exhaust port, a plurality of through holes are distributed on the flexible oil net, and the flexible oil net is made of a flexible material.

[0005] Furthermore, the range hood also includes a curtain, which is used to block or avoid the smoke exhaust port; the range hood has a working state and a non-working state, wherein when the range hood is in the working state, the flexible oil net is located at the smoke exhaust port, and the curtain avoids the smoke exhaust port; when the range hood is in the non-working state, the curtain blocks the smoke exhaust port.

[0006] Furthermore, the blind is made of flexible material.

[0007] Furthermore, the flexible oil net and the blind are both made of any one of the following materials: cloth; cloth with metal components; plastic; plastic with metal components; tin foil; aluminum foil.

[0008] Furthermore, the flexible oil net is connected to the blind, and the flexible oil net and the blind form a rolling blind that can be rolled up or unfolded.

[0009] Furthermore, the range hood also includes: a first rotating rod rotatably disposed on the smoke hood, the first rotating rod and an end portion of the flexible oil net being connected to curl or unfold the flexible oil net; a second rotating rod rotatably disposed on the smoke hood, the second rotating rod and an end portion of the blind being connected to curl or unfold the blind; wherein, when the range hood is in the working state, the flexible oil net is unfolded and the blind is rolled up; when the range hood is in the non-working state, the blind is unfolded and the flexible oil net is rolled up.

[0010] Furthermore, the range hood also includes: two first brackets, which are arranged at intervals on the smoke hood, and the two ends of the first rotating rod are connected to the two first brackets in a one-to-one correspondence; two second brackets, which are arranged at intervals on the smoke hood, and the two ends of the second rotating rod are connected to the two second brackets in a one-to-one correspondence.

[0011] Furthermore, the range hood further comprises: a first motor, which is arranged on the fume hood, and the first motor is drivingly connected to the first rotating rod; and a second motor, which is arranged on the fume hood, and the second motor is drivingly connected to the second rotating rod.

[0012] Furthermore, the range hood also includes: a detection unit, which is used to detect the position of the flexible oil net or the curtain; a control unit, the detection unit, the first motor and the second motor are all connected to the control unit, and the control unit is used to control the operation of the first motor and the second motor.

[0013] Furthermore, the through hole is a strip-shaped hole, and a plurality of the strip-shaped holes are arranged side by side.

[0014] Another aspect of the present invention provides an operating method for the above-mentioned range hood, the operating method comprising: sending a power-on command to the range hood; detecting whether a curtain in the range hood is in a position to block the smoke exhaust port of the range hood; if the curtain blocks the smoke exhaust port, controlling the curtain to move to a position to avoid the smoke exhaust port, and controlling the flexible oil net in the range hood to move to the smoke exhaust port; and turning on the fan of the range hood.

[0015] Furthermore, the operating method also includes: sending a shutdown command to the range hood; turning off the fan; controlling the flexible oil net to move to a position avoiding the smoke exhaust port, and controlling the curtain to move to a position blocking the smoke exhaust port.

[0016] By applying the technical solution of the present invention, a range hood is provided, which includes a smoke collecting hood and a flexible oil net. The smoke collecting hood has a smoke collecting cavity, a smoke collecting port and a smoke exhaust port, and the smoke collecting port and the smoke exhaust port are both connected to the smoke collecting cavity; the flexible oil net is removably arranged at the smoke exhaust port, and a plurality of through holes are distributed on the flexible oil net, and the flexible oil net is made of a flexible material. The smoke collecting port and the smoke collecting cavity are used to collect oil smoke, and the smoke exhaust port is used to exhaust oil smoke. The flexible oil net can play a role in condensing grease and providing safety protection. Since the flexible oil net is made of a flexible material and is removably arranged at the smoke exhaust port, compared with the existing oil net made of metal, it will not hurt hands due to burrs and is easy to disassemble and clean. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0018] Figure 1 A schematic diagram showing a range hood provided by an embodiment of the present invention in a working state;

[0019] Figure 2 Shows Figure 1 A schematic diagram showing the range hood in a non-working state;

[0020] Figure 3 Shows Figure 1 Schematic diagram of the expansion of the flexible oil net;

[0021] Figure 4 Shows Figure 1 Schematic diagram of the deployment of the blind in FIG.

[0022] Figure 5 Shows Figure 1 Schematic diagram of the control process of the roller shutter.

[0023] The above drawings include the following reference numerals:

[0024] 10. Smoke hood; 20. Flexible oil net; 21. Through hole; 30. Curtain; 41. First rotating rod; 42. Second rotating rod; 51. First bracket; 52. Second bracket; 61. First motor; 62. Second motor. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] As shown in the accompanying drawings, an embodiment of the present invention provides a range hood, comprising: a smoke collecting hood 10, the smoke collecting hood 10 having a smoke collecting chamber, a smoke collecting port and a smoke exhaust port, both of which are connected to the smoke collecting chamber; a flexible oil net 20, the flexible oil net 20 is removably arranged at the smoke exhaust port, a plurality of through holes 21 are distributed on the flexible oil net 20, and the flexible oil net 20 is made of a flexible material.

[0027] The smoke collecting port and the smoke collecting cavity of the smoke collecting hood 10 are used to collect the oil smoke, and the smoke exhaust port is used to exhaust the oil smoke. The flexible oil net 20 can be used to condense grease and provide safety protection. Since the flexible oil net 20 is made of a flexible material and is removably arranged at the smoke exhaust port, compared with the existing oil net made of metal, it will not hurt the hand due to burrs and is easy to disassemble and clean. Flexible material refers to a material that can be bent, twisted or deformed without affecting performance or causing damage.

[0028] In this embodiment, the range hood further includes a curtain 30, which is used to block or avoid the smoke exhaust port; the range hood has a working state and a non-working state, wherein when the range hood is in the working state, the flexible oil net 20 is located at the smoke exhaust port, and the curtain 30 avoids the smoke exhaust port; when the range hood is in the non-working state, the curtain 30 blocks the smoke exhaust port. With the above arrangement, when the range hood is not in use, the smoke exhaust port can be blocked by the curtain 30, so that the air duct of the whole range hood is separated and cut off, ensuring that the odor in the range hood cavity does not flow back and escape, effectively preventing the problem of odor leakage.

[0029] In the present embodiment, the blind 30 is made of flexible material. The blind 30 is also convenient for disassembly and cleaning like this.

[0030] Specifically, the flexible oil net 20 and the blind 30 are made of any one of the following materials: cloth; cloth with metal components; plastic; plastic with metal components; tin foil; aluminum foil. Or the flexible material is a material with a metal film attached to the surface. The above materials are easy to clean and can be easily installed and disassembled.

[0031] In this embodiment, the flexible oil net 20 and the blind 30 are connected, and the flexible oil net 20 and the blind 30 form a rolling curtain that can be rolled or unfolded. In this way, the positions of the flexible oil net 20 and the blind 30 can be adjusted by rolling or unfolding the rolling curtain to block or avoid the smoke outlet, thereby meeting the working requirements of the range hood.

[0032] Further, the range hood further comprises: a first rotating rod 41, which is rotatably arranged on the fume hood 10, and the first rotating rod 41 is connected to the end of the flexible oil net 20 to curl or unfold the flexible oil net 20; a second rotating rod 42, which is rotatably arranged on the fume hood 10, and the second rotating rod 42 is connected to the end of the blind 30 to curl or unfold the blind 30; wherein, when the range hood is in a working state, the flexible oil net 20 is unfolded and the blind 30 is rolled up; when the range hood is in a non-working state, the blind 30 is unfolded and the flexible oil net 20 is rolled up. In this way, the position switching of the flexible oil net 20 and the blind 30 is achieved by rotating the first rotating rod 41 and the second rotating rod 42. This arrangement has a simple structure, occupies a small space, and can tighten the rolling blind to ensure the use effect. Specifically, the first rotating rod 41 and the second rotating rod 42 rotate forward or reverse synchronously, so that the rolling blind is always in a tensioned state.

[0033] In this embodiment, the range hood further includes: two first brackets 51, which are arranged at intervals on the smoke hood 10, and the two ends of the first rotating rod 41 are connected to the two first brackets 51 in a one-to-one correspondence; two second brackets 52, which are arranged at intervals on the smoke hood 10, and the two ends of the second rotating rod 42 are connected to the two second brackets 52 in a one-to-one correspondence. The first rotating rod 41 can be supported by the two first brackets 51, and the second rotating rod 42 can be supported by the two second brackets 52. In order to reduce resistance, a bearing can be set in the first bracket 51, and the first bracket 51 is inserted into the bearing. Correspondingly, a bearing can be set in the second bracket 52, and the second bracket 52 is inserted into the bearing.

[0034] Furthermore, the range hood further comprises: a first motor 61, which is arranged on the smoke collecting hood 10, and is drivingly connected to the first rotating rod 41; and a second motor 62, which is arranged on the smoke collecting hood 10, and is drivingly connected to the second rotating rod 42. In this way, the two rotating rods are driven by two motors, which is convenient for control, and the roller blind is moved to a precise position.

[0035] Furthermore, the range hood also includes: a detection unit, which is used to detect the position of the flexible oil net 20 or the curtain 30; a control unit, the detection unit, the first motor 61 and the second motor 62 are all connected to the control unit, and the control unit is used to control the operation of the first motor 61 and the second motor 62.

[0036] In this embodiment, the through hole 21 is a strip hole, and a plurality of strip holes are arranged side by side. The use of the strip holes can reduce the obstruction of the flexible oil net 20 to the gas and increase the ventilation volume.

[0037] Another embodiment of the present invention provides an operating method for the above-mentioned range hood, the operating method comprising: sending a power-on command to the range hood; detecting whether the curtain 30 in the range hood is in a position to block the smoke exhaust port of the range hood; if the curtain 30 blocks the smoke exhaust port, controlling the curtain 30 to move to a position to avoid the smoke exhaust port, and controlling the flexible oil net 20 in the range hood to move to the smoke exhaust port; turning on the fan of the range hood. In this way, when using the range hood, it is possible to first detect whether the position of the curtain 30 is correct and move the curtain 30 to a position to avoid the smoke exhaust port, so as to avoid the curtain 30 blocking the smoke exhaust port and affecting smoke exhaust. Moreover, this can achieve automatic operation and improve user experience.

[0038] In this embodiment, the operation method further includes: sending a shutdown command to the range hood; turning off the fan; controlling the flexible oil net 20 to move to a position to avoid the smoke outlet, and controlling the curtain 30 to move to a position to block the smoke outlet. In this way, when the range hood is not in use, the curtain 30 blocks the smoke outlet, ensuring that the odor in the range hood cavity does not flow back and escape, effectively preventing the odor from flowing out.

[0039] In this embodiment, the function of the rolling curtain is that when the range hood is working, the front and rear motors (two motors) simultaneously make clockwise motion, driving the rolling curtain to move from right to left, the non-net part (flexible oil net) is stored, and the net part (curtain) is stretched open, connecting the air inlet channel to form an air duct system to meet working needs; when the range hood stops working, the front and rear motors simultaneously make counterclockwise motion, driving the rolling curtain to move from left to right, the non-net part is stretched, the net part is stored, the air inlet channel is closed, the air duct system is disconnected, the odor in the range hood is blocked from flowing back, and the air in the kitchen is kept clean.

[0040] This type of roller blind is easy to install and disassemble because it is made of soft material and is flexible. It does not take up space when stored and can be removed from the cavity separately. Accordingly, the installation operation is also easy. Also, because it is made of soft material and is flexible, it is easy to clean. Compared with the traditional range hoods that require cleaning of oil nets and oil cups, it is more convenient to clean and is not easy to scratch your hands because the roller blind is made of soft cloth or glue, while metal oil nets and oil cups are easy to scratch your hands when cleaning.

[0041] The control method of the rolling shutter movement is as follows: when starting the machine, first detect whether the rolling shutter is in a closed state, that is, whether the non-net part is in a fully stretched state, and feed back the position information of the rolling shutter to the front and rear motors. The motor then performs data analysis based on the position of the rolling shutter to determine the number of rotations of the motor. After correcting the data, the two motors rotate synchronously to drive the rolling shutter to a fully stretched state with the net part, and then start the main motor to start the operation of the range hood; accordingly, when shutting down the machine, first turn off the main motor of the range hood, and then turn on the rotation motor of the rolling shutter to rotate the rolling shutter to a stretched state with the non-net part, completing a working cycle.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

[0043] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0044] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, numerical expressions and numerical values ​​do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0045] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0046] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0047] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

Claims

1. A range hood, It is characterized in that include: A smoke collecting hood (10), the smoke collecting hood (10) comprising a smoke collecting chamber, a smoke collecting port and a smoke exhaust port, the smoke collecting port and the smoke exhaust port both being in communication with the smoke collecting chamber; A flexible oil net (20), the flexible oil net (20) being removably arranged at the smoke exhaust port, the flexible oil net (20) being provided with a plurality of through holes (21), and the flexible oil net (20) being made of a flexible material; A blind (30), the blind (30) being used to block or avoid the smoke exhaust port; The range hood has an operating state and a non-operating state, wherein when the range hood is in the operating state, the flexible oil net (20) is located at the smoke exhaust port, and the blind (30) avoids the smoke exhaust port; when the range hood is in the non-operating state, the blind (30) blocks the smoke exhaust port; The flexible oil net (20) and the blind (30) are connected, and the flexible oil net (20) and the blind (30) form a rolling blind that can be rolled up or unfolded; A first rotating rod (41) is rotatably disposed on the fume collecting hood (10), wherein the first rotating rod (41) is connected to an end of the flexible oil net (20) to curl or unfold the flexible oil net (20); a second rotating rod (42) rotatably disposed on the smoke collecting hood (10), the second rotating rod (42) being connected to an end of the blind (30) to roll up or unfold the blind (30); Wherein, when the range hood is in the working state, the flexible oil net (20) is unfolded and the blind (30) is rolled up; when the range hood is in the non-working state, the blind (30) is unfolded and the flexible oil net (20) is rolled up.

2. The range hood according to claim 1, It is characterized in that The blind (30) is made of a flexible material.

3. The range hood according to claim 2, It is characterized in that The flexible oil net (20) and the blind (30) are made of any one of the following materials: cloth; plastic; Tin foil; Aluminum foil.

4. The range hood according to claim 1, It is characterized in that The range hood also includes: Two first brackets (51) are arranged at intervals on the smoke collecting hood (10), and two ends of the first rotating rod (41) are connected to the two first brackets (51) in a one-to-one correspondence; Two second brackets (52) are arranged at intervals on the smoke collecting hood (10), and two ends of the second rotating rod (42) are connected to the two second brackets (52) in a one-to-one correspondence.

5. The range hood according to claim 1, It is characterized in that The range hood also includes: A first motor (61) is disposed on the smoke collecting hood (10), the first motor (61) being drivingly connected to the first rotating rod (41); A second motor (62) is arranged on the smoke collecting hood (10), and the second motor (62) is drivingly connected to the second rotating rod (42).

6. The range hood according to claim 5, It is characterized in that The range hood also includes: a detection unit, the detection unit being used to detect the position of the flexible oil net (20) or the blind (30); A control unit, wherein the detection unit, the first motor (61) and the second motor (62) are all connected to the control unit, and the control unit is used to control the operation of the first motor (61) and the second motor (62).

7. The range hood according to claim 1, It is characterized in that The through hole (21) is a strip-shaped hole, and a plurality of the strip-shaped holes are arranged side by side.

8. An operating method for the range hood according to any one of claims 1 to 7, It is characterized in that The operation method comprises: Sending a power-on instruction to the range hood; Detecting whether a blind (30) in the range hood is in a position to block a smoke exhaust port of the range hood; If the blind (30) blocks the smoke exhaust port, controlling the blind (30) to move to a position that avoids the smoke exhaust port, and controlling the flexible oil net (20) in the range hood to move to the smoke exhaust port; Turn on the fan of the range hood.

9. The operating method according to claim 8, It is characterized in that The operation method further includes: Sending a shutdown command to the range hood; Turn off the fan; The flexible oil net (20) is controlled to move to a position avoiding the smoke exhaust port, and the blind (30) is controlled to move to a position blocking the smoke exhaust port.

Images