A range hood with rotating smoke filter

Abstract

The application discloses a range hood with a rotating smoke filter, which comprises a range hood body, a mounting cavity and a smoke inlet which are connected to each other and are arranged on the range hood body, wherein the smoke inlet is arranged at the bottom of the range hood body; a smoke filter device which comprises a motor and a filter screen which are connected to each other, wherein the motor is arranged in the mounting cavity and the filter screen is arranged in the smoke inlet; and a rectifier plate which is arranged below the smoke inlet, is connected to the range hood body and can rotate relative to the range hood body and / or be separated from the range hood body. Through the above structure, when the range hood is running, the rotating filter screen can be shielded by the rectifier plate, so that the safety of the range hood is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of kitchen appliances, in particular to an oil extractor. BACKGROUND

[0002] The oil extractor can suck the oil fume in the kitchen when working, so as to purify the air in the kitchen. Specifically, the oil extractor can suck the oil fume in the kitchen and pass through the filter screen when working, so as to intercept part of the oil fume and water vapor to form oil stains. The oil stains flow along the filter screen to the oil collecting box for collection. In view of the optimization of the oil fume interception effect and other factors, the filter screen of some oil extractors is rotatable, that is, a motor is arranged in the oil extractor and connected with the filter screen, so as to drive the filter screen to rotate when the oil extractor works to suck the fume. The operation of the motor can be controlled independently or in linkage with the main fan of the oil extractor.

[0003] However, some oil extractors lack good rotation protection for the filter screen. The filter screen of the oil extractor is directly exposed when the oil extractor works to suck the fume, which may cause the personnel to be injured by contacting the continuously rotating filter screen, and the safety of the oil extractor is poor. SUMMARY

[0004] The present application aims to provide an oil extractor with a rotating filter screen, which can improve the safety and avoid injury to the user.

[0005] To achieve the above-mentioned purpose, an oil extractor with a rotating filter screen is provided, which comprises: an extractor main body, wherein an installation cavity and an oil inlet are arranged in communication on the extractor main body, and the oil inlet is located at the bottom of the extractor main body; a fume filtering device, comprising a motor and a filter screen connected with each other, wherein the motor is arranged in the installation cavity, and the filter screen is arranged in the oil inlet; and a rectifier plate, which is located below the oil inlet and connected with the extractor main body and can rotate relative to the extractor main body and / or be separated from the extractor main body.

[0006] According to the oil extractor with a rotating filter screen, a switch device for controlling the on-off of the motor is arranged on the extractor main body, and the switch device is provided with a first control element which is arranged in cooperation with the rectifier plate.

[0007] According to the oil extractor with a rotating filter screen, an electricity connection module and a main control module are arranged on the extractor main body, the electricity connection module is used to connect the commercial power supply, and the main control module is used to control the operation of the motor.

[0008] The electricity connection module, the switch device, the main control module and the motor are electrically connected in series; or

[0009] The electricity connection module, the main control module, the switch device and the motor are electrically connected in series; or

[0010] The power connection module, the switch device and the motor are electrically connected with the main control module.

[0011] According to the range hood with the rotating smoke filter, the switch device is arranged as a limit switch or a magnetic control switch.

[0012] According to the range hood with the rotating smoke filter, the bottom of the range hood body is provided with a brake device for braking the filter screen, and the brake device is provided with a second control element matched with the rectifier plate.

[0013] According to the range hood with the rotating smoke filter, the brake device comprises: a mounting shell arranged on the range hood body and slidably provided with the second control element, and the second control element is provided with a first guide slope; a mounting block slidably arranged in the mounting shell and provided with a second guide slope opposite to the first guide slope; a first elastic element arranged between the mounting block and the mounting shell away from the second control element; a brake lever slidably arranged in the mounting shell, and the brake lever is capable of abutting against or being inserted into the filter screen when the brake lever slides relative to the mounting shell; and a guide and pushing structure comprising a guide groove and a guide hook portion, the guide groove is arranged in the side wall of the mounting block and is inclined to the sliding direction of the mounting block relative to the mounting shell, and the guide hook portion is arranged at the other end of the brake lever and is inserted into the guide groove.

[0014] According to the range hood with the rotating smoke filter, the smoke filter device further comprises a mounting rack, the range hood body comprises a main shell and a machine shell, the machine shell is detachably connected to the bottom of the main shell, the smoke inlet is arranged on the machine shell, the mounting rack is arranged on the side of the machine shell away from the rectifier plate and connected to the machine shell, and the motor is arranged on the mounting rack.

[0015] According to the range hood with the rotating smoke filter, the top surface of the machine shell is concave to form a first groove.

[0016] According to the range hood with the rotating smoke filter, the bottom of the range hood body is provided with a hook portion and a locking structure arranged at intervals, one side of the rectifier plate is provided with a hanging rod portion rotatably hung on the hook portion, and the other side is detachably connected to the locking structure.

[0017] According to the range hood with the rotating smoke filter, the locking structure comprises:

[0018] a surrounding shell fixedly arranged on the range hood body and open on one side;

[0019] a locking rod inserted into the surrounding shell at the opening,

[0020] a second elastic element arranged in the surrounding shell and connected to the locking rod;

[0021] A hanging plate is provided on the other side of the rectifier plate, and the hanging plate has a hanging hole. The locking rod is inserted into the hanging hole.

[0022] The locking rod has a cone at one end extending out of the housing, and / or the top of the hanging plate is provided with a thrust guide surface;

[0023] The height of the hanging hole is greater than the height of the cone head and the locking rod.

[0024] The above solution has at least one of the following beneficial effects: With the above structure, when the range hood is operating and absorbing smoke, the rectifier plate can shield the rotating filter screen, preventing people from coming into contact with it and causing injury, thus improving the safety of the range hood.

[0025] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0027] Figure 1 This is a structural diagram of an embodiment of the present invention;

[0028] Figure 2 This is a structural diagram from another perspective of an embodiment of the present invention;

[0029] Figure 3 for Figure 2 An enlarged view of part A shown in the diagram;

[0030] Figure 4 This is a cross-sectional view of an embodiment of the present invention;

[0031] Figure 5 for Figure 4 An enlarged view of part B shown in the diagram;

[0032] Figure 6 This is an exploded view of an embodiment of the present invention;

[0033] Figure 7 This is a structural diagram of the braking device;

[0034] Figure 8 This is an exploded view of the braking device;

[0035] Figure 9 This is a simplified circuit diagram of an embodiment of the present invention;

[0036] Figure 10 A simplified circuit diagram of another embodiment of the present invention.

[0037] Figure 11 This is a simplified circuit diagram of another embodiment of the present invention. DETAILED DESCRIPTION

[0038] This part will describe the specific embodiments of the present application in detail, the preferred embodiments of the present application are shown in the drawings, the role of the drawings is to supplement the description of the text part with graphics, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the present application, but it cannot be understood as a limitation on the protection scope of the present application.

[0039] In the description of the present application, it should be understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right and the like, is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the present application.

[0040] In the description of the present application, greater than, less than, more than, etc. are understood as not including the number, above, below, etc. are understood as including the number. If the first, second is described, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the order of technical features indicated.

[0041] In the description of the present application, unless otherwise explicitly limited, the words such as setting, installing, connecting, etc. should be understood broadly, and the person skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical scheme.

[0042] Reference Figures 1 to 11 A smoke filter with rotation, which comprises a smoke machine body 10, a smoke filter device 20 and a rectifier plate 30, the smoke machine body 10 is provided with a connected installation cavity 13 and a smoke inlet 14, the smoke inlet 14 is located at the bottom of the smoke machine body 10, the smoke filter device 20 comprises a motor 21 and a filter screen 22 connected with each other, the motor 21 is arranged in the installation cavity 13, the filter screen 22 is arranged in the smoke inlet 14, the rectifier plate 30 is located below the smoke inlet 14, the rectifier plate 30 is connected with the smoke machine body 10 and can rotate and / or separate relative to the smoke machine body 10.

[0043] A main fan 60 is arranged in the installation cavity 13. When the main fan 60 is running, a negative pressure suction force is generated, so that the external oil fume is sucked into the installation cavity 13 through the smoke inlet 14 after bypassing the rectifier plate 30, and the oil fume passing through the smoke inlet 14 is intercepted by the filter screen 22 driven by the motor 21. When the range hood is running to suck smoke, the filter screen 22 in rotation can be shielded by the rectifier plate 30 to avoid personnel contact and injury, thereby improving the safety of the range hood. When it is necessary to disassemble and wash the filter screen 22, the rectifier plate 30 is opened, that is, the rectifier plate 30 is rotated and / or separated relative to the range hood body 10, and at this time the filter screen 22 can be exposed.

[0044] The range hood body 10 is provided with a switching device 41, an electricity connection module 42 and a main control module 43. The electricity connection module 42 is used to connect the mains, and the mains flows to the main control module 43 through the electricity connection module 42 to supply power to the main control module 43, so that the main control module 43 can receive and process the control instructions sent by the user, and can output current to the motor 21, the main fan 60 and other components to control their operation.

[0045] The switching device 41 can control the power-on and power-off of the motor 21. The switching device 41 has a first control element 411 which is arranged in cooperation with the rectifier plate 30. When it is necessary to disassemble and wash the filter screen 22, the rectifier plate 30 is opened, and the movement of the rectifier plate 30 can drive the switching device 41 to act through the first control element 411, so that the motor 21 is powered off, and the motor 21 can stop rotating after being powered off to avoid personnel contact and injury. When the filter screen 22 is disassembled and washed, the rectifier plate 30 is installed and positioned on the range hood body 10 again, and the movement of the rectifier plate 30 can drive the switching device 41 to act through the first control element 411, so that the motor 21 can be powered on again.

[0046] Specifically, in an embodiment, the electricity connection module 42, the switching device 41, the main control module 43 and the motor 21 are electrically connected in series, that is, the current flows through the electricity connection module 42, the switching device 41, the main control module 43 and the motor 21 in sequence. When the rectifier plate 30 is opened, the switching device 41 acts to disconnect the circuit between the electricity connection module 42 and the main control module 43, and the main control module 43 and the motor 21 are both powered off and stop running. In this embodiment, the current required for the motor 21 to rotate and run flows through the switching device 41.

[0047] In an embodiment, the electricity connection module 42, the main control module 43, the switching device 41 and the motor 21 are electrically connected in series. When the rectifier plate 30 is opened, the switching device 41 acts to disconnect the circuit between the motor 21 and the main control module 43, the motor 21 is powered off and stops running, and the main control module 43 can not be powered off. In this embodiment, the current required for the motor 21 to rotate and run flows through the switching device 41.

[0048] In an embodiment, the power connection module 42, the switch device 41 and the motor 21 are electrically connected with the main control module 43. When the rectifier plate 30 is opened, the switch device 41 is actuated to send a trigger signal to the main control module 43, and the main control module 43 stops supplying power to the motor 21 after receiving the trigger signal, so that the motor 21 is powered off and stops running. In this embodiment, the current required for the motor 21 to run does not flow through the switch device 41, and the current of the trigger signal flows through the switch device 41 to the main control module 43.

[0049] In the above embodiment, the switch device 41 is provided as a limit switch, and the first control member 411 thereof is a swing lever defined on the limit switch. The swing lever is in abutting cooperation with the rectifier plate 30, and the contact cooperation and disconnection of the swing lever with the rectifier plate 30 causes the on-off state of the switch device 41 to change, i.e., the switch device 41 is actuated.

[0050] In some embodiments, the switch device 41 can also be provided as a magnetic control switch or the like structure, and the first control member 411 thereof is a magnetic induction component defined inside. Correspondingly, a magnetic member cooperating with the magnetic control switch is provided on the rectifier plate 30, and the magnetic force generated by the magnetic member drives the on-off state of the switch device 41 to change, i.e., the switch device 41 is actuated.

[0051] In some cases, the user opens the rectifier plate 30 at a relatively high speed, and after the rectifier plate 30 is opened, the filter screen 22 is still rotating under the action of inertia. If the hand of the person touches the filter screen 22, it is easy to be injured, and the oil stains adhered to the filter screen 22 will splash when the filter screen 22 rotates. In order to ensure that the filter screen 22 stops rotating after the rectifier plate 30 is opened, a brake device 50 for braking the filter screen 22 is provided at the bottom of the smoke machine main body 10. The brake device 50 has a second control member 51, and the second control member 51 is provided in cooperation with the rectifier plate 30. When the rectifier plate 30 is opened, the movement of the rectifier plate 30 can actuate the brake device 50 through the second control member 51, and the filter screen 22 is braked by the brake device 50 to limit the rotation of the filter screen 22, avoiding the splashing of the oil stains adhered to the filter screen 22 and the rotation of the filter screen 22 to injure people.

[0052] Specifically, the brake device 50 comprises a mounting shell 52, a mounting block 53, a first elastic member 54, a brake lever 55 and a guide and pushing structure 56. The mounting shell 52 is arranged on the smoke machine main body 10, the second control member 51 is slidably arranged on the mounting shell 52, and the second control member 51 is provided with a first guide inclined surface 511. The mounting block 53 is also slidably arranged on the mounting shell 52, and the mounting block 53 is provided with a second guide inclined surface 531 arranged opposite to the first guide inclined surface 511. The first elastic member 54 is arranged between the mounting block 53 away from the second control member 51 and the mounting shell 52. The brake lever 55 is slidably arranged on the mounting shell 52, and one end of the brake lever 55 can abut against the filter screen 22 when the brake lever 55 slides relative to the mounting shell 52. The guide and pushing structure 56 comprises a guide groove 561 and a guide hook portion 562. The guide groove 561 is arranged on the side wall of the mounting block 53 and is inclined to the sliding direction of the mounting block 53 relative to the mounting shell 52. The guide hook portion 562 is arranged on the other end of the brake lever 55 and is inserted into the guide groove 561.

[0053] When the rectifier plate 30 is installed and positioned on the smoke machine main body 10, the rectifier plate 30 is in a state of contacting and pushing the second control member 51. The rectifier plate 30 is in contact with the second control member 51, and the first guide inclined surface 511 and the second guide inclined surface 531 are matched to make the mounting block 53 slide along the first direction relative to the mounting shell 52. The first elastic member 54 is compressed and stored. The guide hook portion 562 and the guide groove 561 are matched to make one end of the brake lever 55 move and be arranged in a state of being spaced apart from the filter screen 22. When the rectifier plate 30 is opened, the rectifier plate 30 is out of contact with the second control member 51. The first elastic member 54 is released, the mounting block 53 moves immediately, and the first guide inclined surface 511 and the second guide inclined surface 531 are matched to make the second control member 51 move. The guide hook portion 562 and the guide groove 561 are matched to make one end of the brake lever 55 move, so that one end of the brake lever 55 abuts against the filter screen 22, thereby braking the filter screen 22 and limiting the rotation of the filter screen 22.

[0054] In some embodiments, when the filter screen 22 is braked, one end of the brake lever 55 can be arranged to be inserted into the filter screen 22.

[0055] In some embodiments, the second control member 51 can be connected and arranged on the rectifier plate 30, and the rectifier plate 30 is connected and matched with the second control member 51.

[0056] The smoke filtering device 20 further comprises a mounting frame 23, and the smoke machine main body 10 comprises a main shell 11 and a machine shell 12. The machine shell 12 is detachably connected to the bottom of the main shell 11, and the smoke inlet 14 is arranged on the machine shell 12. The mounting frame 23 is located on the side of the machine shell 12 away from the rectifier plate 30 and is connected with the machine shell 12. The motor 21 is arranged on the mounting frame 23.

[0057] Specifically, the casing 12 is detachably connected with the main body 11 by screws or the like, and the mounting cavity 13 is formed by surrounding the casing 12 and the main body 11. When the smoke filtering device 20 needs to be detached from the mounting cavity 13 for maintenance or cleaning, the casing 12 is separated from the main body 11. The main body 11 does not need to be provided with a structure inside to bear the smoke filtering device 20, so that the internal structure of the main body 11 can be simplified. When the smoke filtering device 20 is detached, a hand does not need to be inserted into the inside of the main body 11, so that the operation is convenient. The smoke filtering device 20 is borne by the casing 12, so that the structure of the main body 11 can be changed as little as possible, the existing main body 11 of the extractor hood is fully utilized, and the design workload is reduced.

[0058] The top surface of the casing 12 is concave to form a first groove 121, and the oil stains falling on the mounting rack 23 can be borne by the first groove 121, so that the oil stains are prevented from flowing to other positions, and the first groove 121 can also accommodate the mounting rack 23. In addition, the top surface of the flow regulation plate 30 is concave to form a second groove 31, and the oil stains falling on the filter screen 22 can be borne by the second groove 31.

[0059] The bottom of the extractor hood main body 10 is provided with a hook portion 15 and a locking structure 16 arranged at intervals, one side of the flow regulation plate 30 has a hanging rod portion 33 rotatably hung on the hook portion 15, and the other side is detachably connected with the locking structure 16. The flow regulation plate 30 is positioned on the extractor hood main body 10 by the structure, and when the other side of the flow regulation plate 30 is separated from the locking structure 16, the flow regulation plate 30 can be rotated around the hook portion 15 by cooperation of the hook portion 15 and the hanging rod portion 33, and the hanging rod portion 33 can be taken off from the hook portion 15, so that the flow regulation plate 30 can be separated from the extractor hood main body 10.

[0060] Specifically, the locking structure 16 includes a surrounding shell 161, a locking rod 162 and a second elastic member 163. The surrounding shell 161 is fixedly arranged on the extractor hood main body 10, and one side of the surrounding shell 161 is open. The locking rod 162 is inserted into the surrounding shell 161 at the opening, that is, the locking rod 162 is slidably inserted into the surrounding shell 161 from the opening. The second elastic member 163 is arranged in the surrounding shell 161 and connected with or abuts against the locking rod 162. The other side of the flow regulation plate 30 is provided with a hanging piece 32, the hanging piece 32 has a hanging hole 321, and the locking rod 162 is inserted into the hanging hole 321. One end of the locking rod 162 extending out of the surrounding shell 161 has a tapered head 164, and the top of the hanging piece 32 is provided with a thrust guide surface 322.

[0061] The height of the hanging hole 321 is greater than the height of the conical head 164 and the locking rod 162. During assembly, the hanging piece 32 moves with the rectifier plate 30. The thrust guide surface 322 and the conical head 164 are matched and pushed, so that the locking rod 162 is retracted into the surrounding shell 161. When the hanging hole 321 corresponds to the conical head 164, the second elastic member 163 drives the locking rod 162 to move, and the locking rod 162 is inserted into the hanging hole 321. When the rectifier plate 30 needs to be opened, the other side of the rectifier plate 30 is lifted, then the locking rod 162 is pressed, and finally the other side of the rectifier plate 30 is moved downward.

[0062] In some embodiments, the locking structure 16 can also be provided as a first magnetic block. Correspondingly, a second magnetic block that is attracted to the first magnetic block is provided on the other side of the rectifier plate 30.

[0063] In some embodiments, one side of the rectifier plate 30 can also be rotatably connected to the smoke machine body 10 through a rotating shaft or the like structure, and the other side is detachably connected to the locking structure 16. When the other side of the rectifier plate 30 is separated from the locking structure 16, the rectifier plate 30 can rotate around the axis of the rotating shaft.

[0064] The embodiments of the present application are described in detail above in combination with the drawings, but the present application is not limited to the above-described embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can also be made without departing from the purpose of the present application.

Claims

1. A range hood having a rotating smoke filter, characterized by, The utility model relates to a smoke filter, which comprises a smoke machine body, a filter device and a rectifier plate. The smoke machine body is provided with a mounting cavity and a smoke inlet which are in communication. The smoke inlet is located at the bottom of the smoke machine body. The filter device comprises an electric machine and a filter screen which are connected. The electric machine is arranged in the mounting cavity. The filter screen is arranged in the smoke inlet. The rectifier plate is located below the smoke inlet.

2. The range hood with a rotating smoke filter according to claim 1, characterized in that, The rectifier plate is connected with the smoke machine body and can rotate and / or separate relative to the smoke machine body.

3. The range hood with a rotating smoke filter according to claim 2, characterized in that, The bottom of the smoke machine body is provided with a brake device for braking the filter screen. The brake device has a second control element which is matched with the rectifier plate. The brake device comprises a mounting shell which is arranged on the smoke machine body and is slidably provided with the second control element. The second control element has a first guide slope.

4. The range hood with a rotary smoke filter according to claim 2 or 3, characterized in that, A mounting block is slidably arranged in the mounting shell and has a second guide slope which is arranged opposite to the first guide slope.

5. The range hood with a rotating smoke filter according to claim 1, characterized in that, A first elastic element is arranged between the side of the mounting block away from the second control element and the mounting shell.

6. The range hood with rotational smoke filtering according to claim 1, wherein, A brake lever is slidably arranged in the mounting shell.

7. A range hood with rotating smoke filter according to claim 6, characterized in that, When the brake lever slides relative to the mounting shell, one end of the brake lever can abut against or be inserted into the filter screen. A guide and pushing structure comprises a guide groove and a guide hook part which are matched. The guide groove is opened in the side wall of the mounting block and is inclined to the sliding direction of the mounting block relative to the mounting shell. The guide hook part is arranged at the other end of the brake lever and is inserted into the guide groove. The filter device further comprises a mounting rack. The smoke machine body comprises a main shell and a machine shell. The machine shell is detachably connected to the bottom of the main shell. The machine shell is provided with the smoke inlet. The mounting rack is located on the side of the machine shell away from the rectifier plate and is connected with the machine shell. The electric machine is arranged on the mounting rack. The smoke machine body is provided with a switching device which can control the on-off electricity of the electric machine. The switching device has a first control element which is matched with the rectifier plate. The smoke machine body is provided with an electricity connection module and a main control module. The electricity connection module is used for connecting the commercial power. The electricity connection module, the switching device, the main control module and the electric machine are electrically connected in sequence. The electricity connection module, the main control module, the switching device and the electric machine are electrically connected in sequence. The electricity connection module, the switching device and the electric machine are electrically connected with the main control module. The switching device is arranged as a limit switch or a magnetic control switch. The top surface of the machine shell is concave to form a first groove. The bottom of the smoke machine body is provided with a hook part and a locking structure which are arranged in intervals. One side of the rectifier plate has a hanging rod part which is rotatably hung on the hook part. The other side of the rectifier plate is detachably connected with the locking structure. The locking structure comprises a surrounding shell which is fixedly arranged on the smoke machine body and is open on one side. A locking rod is inserted into the surrounding shell at the opening. A second elastic element is arranged in the surrounding shell and is connected with the locking rod. The other side of the rectifier plate is provided with a hanging piece. The hanging piece has a hanging hole. The locking rod is inserted into the hanging hole. The end of the locking rod which extends out of the surrounding shell has a tapered head. The top of the hanging piece is provided with a thrust guide surface. The height of the hanging hole is greater than the height of the tapered head and the locking rod.

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