A new type of internal circulation range hood

Abstract

This utility model discloses a novel internal circulation range hood, including a smoke extraction box assembly, a housing assembly, and a fan assembly. The housing assembly includes a housing body and a front cover; the upper opening of the housing body houses a liftable smoke extraction box assembly. The fan assembly includes a fan body and a fan wheel assembly. The fan body divides the inner cavity of the housing body into a non-communicating front chamber and a rear chamber; the rear chamber is connected to the smoke extraction box assembly. The area above the fan body in the front chamber forms a smoke exhaust channel, and the areas on the left and right sides of the front chamber form purification channels. The purification channels are connected to the smoke exhaust channels, and purification components are installed within the purification channels. The exhaust vent of the purification channels is located on the front side of the housing body. The smoke extraction port of the fan body is connected to the rear chamber, and the smoke exhaust port is connected to the smoke exhaust channel. This utility model range hood balances high smoke purification efficiency with a small space occupation, is easy to install, and has an overall aesthetically pleasing design. Furthermore, the smoke extraction box assembly moves smoothly and is easy and quick to assemble and disassemble.

Description

Technical Field

[0001] This utility model relates to the field of range hood technology, and in particular to a novel internal circulation range hood. Background Technology

[0002] Traditional top-mounted range hoods have the following problems due to structural limitations:

[0003] 1. Traditional exhaust-type range hoods rely on shared flues, limiting their installation location and making it impossible to achieve a balance between fume purification efficiency and space occupancy.

[0004] 2. Traditional range hoods have their electrical circuits exposed inside the oil cavity, resulting in poor oil flow and potential safety hazards.

[0005] 3. It takes up a lot of space and is not aesthetically pleasing;

[0006] 4. The lifting assembly of the smoking box uses a synchronous motor, which is prone to damage, produces a lot of noise, and is difficult to disassemble and repair after damage.

[0007] Therefore, in order to solve the above problems, it is necessary to develop a new type of internal circulation range hood that balances high oil fume purification efficiency with small space occupation, is easy to install, and has an overall beautiful appearance; moreover, the smoke box assembly can be raised and lowered smoothly and is easy and quick to disassemble and assemble. Utility Model Content

[0008] To solve the above problems, the technical solution adopted by this utility model is as follows:

[0009] A novel internal circulation range hood, entirely integrated inside the cooktop, includes a smoke extraction chamber assembly, a casing assembly, and a fan assembly, characterized by:

[0010] The chassis assembly includes a chassis body and a front cover;

[0011] The upper opening of the chassis body is provided with a liftable smoke box assembly;

[0012] The stove is provided with an avoidance hole at the smoke box assembly;

[0013] The bellows assembly includes a bellows body and a wind turbine assembly disposed within the bellows body;

[0014] The bellows body divides the inner cavity of the chassis body into a front chamber and a rear chamber that are not connected to each other, with the bellows body located in the front chamber.

[0015] The rear chamber is connected to the smoking box assembly;

[0016] The area of ​​the front chamber located above the air box body forms a smoke exhaust channel, and the areas of the front chamber located on the left and right sides of the air box body form purification channels.

[0017] The purification channel is connected to the smoke exhaust channel, and a purification component is installed inside the purification channel. The exhaust port of the purification channel is located on the front side of the chassis body.

[0018] The purification component is used to purify oil fumes and remove odors;

[0019] The smoke inlet of the bellows body is connected to the rear chamber, and the smoke outlet is connected to the smoke exhaust channel.

[0020] Preferably, the stovetop is provided with mounting grooves around the outer perimeter of the clearance hole;

[0021] The smoking box assembly includes a decorative panel that is fully fitted into the mounting groove, and a control panel glass that is fully fitted into the decorative panel.

[0022] Preferably, the purification component includes an oil fume separation layer, an oil filter layer, and a smoke and odor removal layer arranged longitudinally from the exhaust channel to the purification channel;

[0023] Buffer zones are provided between the oil filter layer, the oil fume separation layer, and the smoke filtration and deodorization layer.

[0024] Preferably, the oil fume separation layer includes a positive electrode discharge plate and a negative electrode adsorption plate arranged sequentially in the direction of oil fume flow.

[0025] Preferably, the oil filter layer is an aluminum filter screen.

[0026] Preferably, the smoke filtration and deodorization layer includes an activated carbon filter and a HEPA filter arranged in sequence.

[0027] Preferably, the smoking box assembly includes a smoking box body, which is connected to the main body of the chassis via a lifting assembly;

[0028] The lifting assembly includes a docking compartment, a drive shaft, a gearbox, a lifting drive, and push rods arranged opposite each other on both sides inside the smoking box.

[0029] The drive shaft, gearbox, and lifting drive are located inside the docking compartment;

[0030] The docking compartment is quickly connected to the chassis body, and a plug-in terminal for electrical connection is provided between the docking compartment and the chassis body.

[0031] The push rod includes a lead screw, an inner guide rail, a middle guide rail, and an outer guide rail;

[0032] The lower end of the middle guide rail is fixedly connected to the docking compartment via a right-angle reversing device, and the upper end is slidably connected to the inner and outer guide rails.

[0033] The lower end of the lead screw is connected to the drive shaft via a right-angle reversing device, and the upper end is connected to the internal thread of the inner guide rail.

[0034] The outer guide rail and the inner guide rail are installed inside the smoking box, and their lower ends are fixedly connected to the smoking box.

[0035] The lifting drive is connected to the drive shaft via a gearbox;

[0036] The gearbox and right-angle commutator are fixedly connected to the docking compartment.

[0037] Preferably, guide members are provided on opposite sides of the chassis body that connect to the docking compartment.

[0038] Preferably, the front cover is connected to the front side of the chassis body, and an exhaust grille is provided on the front cover at the exhaust port;

[0039] The front opening of the stove is provided with a cabinet door, and a removable baseboard is provided below the cabinet door.

[0040] The skirting board is provided with mutually perpendicular tie rods, and the tie rods are provided with exhaust louvers.

[0041] Preferably, the purification channel is provided with multiple layers of slide rails for sequentially placing the oil fume separation layer, the oil filter layer, and the smoke and odor removal layer;

[0042] A removable cover is provided on the front side of the purification channel.

[0043] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0044] 1. It balances high oil fume purification efficiency with small space occupancy, eliminating the hassle and limitations of pipeline installation.

[0045] 2. It has a longer oil fume flow and purification channel, which can achieve efficient smoke extraction and efficient purification of oil fumes.

[0046] 3. Two push rods are synchronously driven by a single brushless DC motor, enabling the smoking box assembly to rise and fall synchronously, smoothly, and with low noise on both sides.

[0047] 4. Since the smoke box assembly is connected to the docking compartment by a push rod to form an integral unit, and the docking compartment is quickly connected to the chassis body, and plug-in terminals are used to connect the lifting drive, control panel, etc. to the power supply of the chassis body; therefore, during maintenance and disassembly, the smoke box assembly and the lifting assembly can be pulled out of the chassis body as a whole, so that the lifting assembly or the smoke box assembly can be repaired as a whole, making maintenance and disassembly convenient and quick.

[0048] 5. The main body of the range hood is hidden inside the stove. When the range hood is off, the entire range hood is hidden inside the stove. When the range hood is on, only the smoke extraction box component protrudes. It is simple, elegant and beautiful, and does not take up cooking space. Attached Figure Description

[0049] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0050] Figure 2 This is an exploded view of the present invention;

[0051] Figure 3 This is the front view of the present utility model;

[0052] Figure 4 for Figure 3 Schematic diagram of the cross-sectional structure of the middle AA section;

[0053] Figure 5 for Figure 3 Schematic diagram of the cross-sectional structure of the middle BB section;

[0054] Figure 6 This is the right view of the present invention;

[0055] Figure 7 for Figure 6 Schematic diagram of the cross-sectional structure of the middle CC section;

[0056] Figure 8 This is a schematic diagram of the installation of this utility model with a stove.

[0057] Figure 9 This is a cross-sectional view of the present invention installed on a stove.

[0058] The components include: 1. Smoke box assembly; 2. Chassis assembly; 3. Air box assembly; 4. Purification assembly; 5. Lifting assembly; 6. Plug-in terminal; 7. Right-angle commutator; 8. Guide component; 9. Baseboard; 11. Control panel glass; 12. Smoke box body; 13. Decorative panel; 21. Chassis body; 22. Front cover; 31. Air box body; 32. Fan assembly; 41. Oil fume separation layer; 42. Oil filter layer; 43. Smoke filtration and deodorization layer; 51. Docking compartment; 52. Drive shaft; 53. Gearbox; 54. Lifting drive; 55. Push rod; 91. Pull bar; 92. Exhaust louvers. Grid 92, exhaust grille 221, slide rail 401, cover plate 402, positive electrode discharge plate 411, negative electrode adsorption plate 412, activated carbon filter 431, HEPA filter 432, lead screw 551, inner guide rail 552, middle guide rail 553, outer guide rail 554, front chamber 10, rear chamber 20, smoke exhaust channel 30, purification channel 40, buffer zone 50, exhaust vent 60, smoke exhaust port 31a, smoke inlet 31b, stove 100, clearance hole 101, mounting groove 102, cabinet door 103. Detailed Implementation

[0059] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0060] It should be noted that when a component is said to be "fixed" to another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected" to another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "front," "back," "left," "right," "up," "down," and similar expressions used in this document are for illustrative purposes only.

[0061] 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 invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0062] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments:

[0063] like Figure 1-9 As shown, a new type of internal circulation range hood is built into the stove 100 and includes a smoke box assembly 1, a casing assembly 2 and a fan assembly 3. The casing assembly 2 includes a casing body 21 and a front cover 22.

[0064] The upper opening of the chassis body 21 is provided with a liftable smoking box assembly 1;

[0065] The stove 100 has an avoidance hole 101 at the smoke box assembly 1;

[0066] The bellows assembly 3 includes a bellows body 31 and a wind turbine assembly 32 disposed within the bellows body 31;

[0067] The bellows body 31 divides the inner cavity of the chassis body 21 into a front chamber 10 and a rear chamber 20 that are not connected to each other, and the bellows body 31 is located in the front chamber 10.

[0068] The rear chamber 20 is connected to the smoking box assembly 1;

[0069] The area of ​​the front chamber 10 above the air box body 31 forms a smoke exhaust channel 30, and the areas of the front chamber 10 on the left and right sides of the air box body 31 form a purification channel 40.

[0070] The purification channel 40 is connected to the smoke exhaust channel 30. A purification component 4 is installed inside the purification channel 40. The exhaust port 60 of the purification channel 40 is located on the front side of the chassis body 21.

[0071] The purification component 4 is used to purify oil fumes and remove odors;

[0072] The smoke inlet 31b of the bellows body 31 is connected to the rear chamber 20, and the smoke outlet 31a is connected to the smoke exhaust channel 30.

[0073] In this embodiment, a concealed installation method is adopted, which is built into the stove 100, so as not to occupy the space of the stove 100; at the same time, a purification component 4 for purifying oil fumes and removing odors is set on the smoke exhaust channel 30 between the air box component 3 and the main body 21, so that the range hood can take into account both high oil fume purification efficiency and small space occupation, eliminating the cumbersome and restrictive nature of pipe installation.

[0074] In this embodiment, when in use, the smoke box assembly 1 extends out of the stove 100 through the clearance hole 101; when not in use, the end face of the smoke box assembly 1 is flush with the surface of the stove 100, achieving complete concealment and aesthetic appeal.

[0075] In this embodiment, the oil fumes collected by the air box assembly 3 first enter the upper exhaust duct 30, and then flow laterally to the left and right to the purification duct 40 for purification. The purified oil fumes and deodorized air flow longitudinally and are discharged from the exhaust port 60 on the front side of the chassis body 21. Compared with the prior art, it has a longer oil fume flow and purification duct 40, which can achieve efficient smoke extraction and efficient oil fume purification.

[0076] Furthermore, such as Figure 1 , 8 As shown in Figures 9 and 10, the stove 100 is provided with mounting grooves 102 around the outer perimeter of the clearance hole 101;

[0077] The smoking box assembly 1 includes a decorative panel 13 that is fully fitted into the mounting groove 102, and a control panel glass 11 that is fully fitted into the decorative panel 13.

[0078] In this embodiment, the decorative panel 13 is fixedly installed on the mounting groove 102 of the stove 100. When not in use, the control panel glass 11 is completely flush-embedded in the decorative panel 13. When in use, the smoke box assembly 1 is raised to achieve a fully hidden design, which does not occupy the space of the stove 100 and is more aesthetically pleasing.

[0079] Furthermore, such as Figure 2 , 4As shown in Figure 5, in order to improve the smoke extraction and filtration effect of the purification process, the purification component 4 includes an oil fume separation layer 41, an oil filter layer 42, and a smoke filtration and deodorization layer 43 arranged longitudinally from the smoke exhaust channel 30 to the purification channel 40.

[0080] A buffer zone 50 is provided between the oil filter layer 42 and the oil fume separation layer 41 and the smoke filtration and deodorization layer 43.

[0081] Furthermore, such as Figure 2 , 4 As shown, the oil fume separation layer 41 includes a positive electrode discharge plate 411 and a negative electrode adsorption plate 412 arranged sequentially in the direction of oil fume flow.

[0082] In this embodiment, the oil particles are charged by high-voltage discharge through the positive electrode discharge plate 411, and then the charged oil particles are adsorbed onto the negative electrode adsorption plate 412, thereby filtering out most of the oil in the fumes.

[0083] Furthermore, such as Figure 2 , 4 As shown, in order to remove the remaining oil from the fumes and improve the oil removal effect, the oil filter layer 42 is an aluminum filter screen.

[0084] Furthermore, such as Figure 2 , 4 As shown, the smoke filtration and deodorization layer 43 includes an activated carbon filter 431 and a HEPA filter 432 arranged in sequence.

[0085] In this embodiment, the activated carbon filter 431 adopts a multi-stage activated carbon filtration structure to efficiently filter and purify the smoke and odor in the cooking fumes, thereby adsorbing odors and removing formaldehyde; the HEPA filter 432 intercepts harmful substances such as PM2.5 generated during cooking, ensuring that the smoke discharged from the front exhaust vent 60 meets indoor emission requirements.

[0086] Furthermore, such as Figure 2 , 5 As shown in Figures 7 and 8, the smoking box assembly 1 includes a smoking box body 12, which is connected to the chassis body 21 via a lifting assembly 5.

[0087] The lifting assembly 5 includes a docking compartment 51, a drive shaft 52, a gearbox 53, a lifting drive 54, and push rods 55 arranged opposite each other on both sides inside the smoking box 12.

[0088] The drive shaft 52, gearbox 53, and lifting drive 54 are located inside the docking compartment 51.

[0089] The docking compartment 51 is quickly connected to the chassis body 21, and a plug-in terminal 6 for electrical connection is provided between the docking compartment 51 and the chassis body 21.

[0090] The push rod 55 includes a lead screw 551, an inner guide rail 552, a middle guide rail 553, and an outer guide rail 554;

[0091] The lower end of the middle guide rail 553 is fixedly connected to the docking compartment 51 through a right-angle commutator 7, and the upper end is slidably sleeved between the inner guide rail 552 and the outer guide rail 554.

[0092] The lower end of the lead screw 551 is connected to the drive shaft 52 via a right-angle reversing device 7, and the upper end is connected to the inner guide rail 552 via an internal thread.

[0093] The outer guide rail 554 and the inner guide rail 552 are disposed inside the smoking box 12, and their lower ends are fixedly connected to the smoking box 12.

[0094] The lifting drive 54 is connected to the drive shaft 52 via the gearbox 53;

[0095] The gearbox 53 and the right-angle commutator 7 are fixedly connected to the docking compartment 51.

[0096] In this embodiment, compared with the existing single-motor single-pushrod 55 structure, a single lifting driver 54 drives the transmission shaft 52 to rotate through the gearbox 53. The rotation of the transmission shaft 52 drives the lead screws 551 of the two push rods 55 to rotate synchronously through the right-angle commutators 7 at both ends. Thus, the lifting and lowering of the cylinders of the push rods 55 synchronizes the lifting and lowering of both sides of the smoke chamber 12, ensuring a smooth lifting and lowering process of the smoke chamber 12 and solving the problem of asynchronous tilting on both sides of the smoke chamber 12 during the lifting and lowering process, resulting in shaking, abnormal noise, or even jamming.

[0097] In this implementation, when the push rod 55 is working, the lead screw 551 rotates in the opposite direction to push the threaded inner guide rail 552 and outer guide rail 554 to slide relative to the middle guide rail 553. That is, the whole formed by the inner guide rail 552, outer guide rail 554 and smoke box 12 lifts and lowers relative to the whole formed by the lead screw 551, middle guide rail 553 and chassis body 21. Compared with the existing lifting structure, the lifting is more stable and smooth.

[0098] In this embodiment, since the smoking box assembly 1 is connected to the docking compartment 51 by the push rod 55 to form an integral unit, and the docking compartment 51 is quickly connected to the chassis body 21, and the lifting drive 54, control panel, etc. are electrically connected to the power supply of the chassis body 21 by the plug-in terminal 6, the smoking box assembly 1 and the lifting assembly 5 can be pulled out of the chassis body 21 as a whole during maintenance and disassembly, so that the lifting assembly 5 or the smoking box assembly 1 as a whole can be maintained, making maintenance and disassembly convenient and quick.

[0099] In this embodiment, to improve the smoothness of the lifting and lowering of the smoke chamber 12, guide wheels are provided around the upper opening between the smoke chamber 12 and the main body 21.

[0100] Furthermore, such as Figure 2 , 5 As shown in Figures 7 and 8, in order to ensure that the docking compartment 51 is accurately aligned each time it is installed, guide members 8 are provided on both sides of the chassis body 21 that are connected to the docking compartment 51.

[0101] Furthermore, such as Figure 1 , 2 As shown in Figures 5 and 7, the front cover 22 is connected to the front side of the chassis body 21, and an exhaust grille 221 is provided on the front cover 22 at the exhaust port 60.

[0102] The stove 100 has a cabinet door 103 at its front opening, and a detachable baseboard 9 is provided below the cabinet door 103 on the stove 100.

[0103] The skirting board 9 is provided with mutually perpendicular tie rods 91, and the tie rods 91 are provided with exhaust louver grilles 92.

[0104] In this embodiment, a front exhaust vent 60 is adopted. The air discharged from the exhaust vent 60 passes through the exhaust grille 221 and is discharged through the exhaust louver grille 92 parallel to the ground, which improves the efficiency and effect of air discharge. Moreover, the detachable skirting board 9 facilitates the convenient disassembly and assembly of the entire range hood.

[0105] Furthermore, such as Figure 2 , 5 As shown in Figures 7 and 8, the purification channel 40 is provided with multiple slide rails 401 for sequentially placing the oil fume separation layer 41, the oil filter layer 42, and the smoke and odor removal layer 43.

[0106] A removable cover plate 402 is provided on the front side of the purification channel 40.

[0107] In this embodiment, the oil fume separation layer 41, the oil filter layer 42, and the smoke and odor removal layer 43 are fixed in the purification channel 40 by the slide rail 401. When it is necessary to replace the oil fume separation layer 41, the oil filter layer 42, or the smoke and odor removal layer 43, the cover plate 402 is first removed, and then the oil fume separation layer 41, the oil filter layer 42, or the smoke and odor removal layer 43 can be pulled out from the front opening in sequence, so as to realize the convenient replacement and fixed installation of the purification component 4.

[0108] For those skilled in the art, various other corresponding changes and modifications can be made based on the technical solutions and concepts described above, and all such changes and modifications should fall within the protection scope of the claims of this utility model patent.

Claims

1. A novel internal circulation range hood, entirely integrated inside the cooktop, comprising a smoke extraction chamber assembly, a casing assembly, and a fan assembly, characterized in that: The chassis assembly includes a chassis body and a front cover; The upper opening of the chassis body is provided with a liftable smoke box assembly; The stove is provided with an avoidance hole at the smoke box assembly; The bellows assembly includes a bellows body and a wind turbine assembly disposed within the bellows body; The bellows body divides the inner cavity of the chassis body into a front chamber and a rear chamber that are not connected to each other, with the bellows body located in the front chamber. The rear chamber is connected to the smoking box assembly; The area of ​​the front chamber located above the air box body forms a smoke exhaust channel, and the areas of the front chamber located on the left and right sides of the air box body form purification channels. The purification channel is connected to the smoke exhaust channel, and a purification component is installed inside the purification channel. The exhaust port of the purification channel is located on the front side of the chassis body. The purification component is used to purify oil fumes and remove odors; The smoke inlet of the bellows body is connected to the rear chamber, and the smoke outlet is connected to the smoke exhaust channel.

2. A novel internal recirculation hood as claimed in claim 1, wherein, The stovetop is provided with mounting grooves around the outer perimeter of the clearance hole; The smoking box assembly includes a decorative panel that is fully fitted into the mounting groove, and a control panel glass that is fully fitted into the decorative panel.

3. A novel internal circulation range hood according to claim 1, characterized in that, The purification component includes an oil fume separation layer, an oil filter layer, and a smoke and odor removal layer arranged longitudinally from the smoke exhaust channel to the purification channel. Buffer zones are provided between the oil filter layer, the oil fume separation layer, and the smoke filtration and deodorization layer.

4. A novel internal circulation range hood according to claim 3, characterized in that, The oil fume separation layer includes a positive electrode discharge plate and a negative electrode adsorption plate arranged sequentially in the direction of oil fume flow.

5. A novel internal circulation range hood according to claim 3, characterized in that, The oil filter layer is an aluminum filter screen.

6. A novel internal circulation range hood according to claim 3, characterized in that, The smoke filtration and deodorization layer includes an activated carbon filter and a HEPA filter arranged in sequence.

7. A novel internal circulation range hood according to claim 1, characterized in that, The smoking box assembly includes a smoking box body, which is connected to the main body of the machine body via a lifting assembly; The lifting assembly includes a docking compartment, a drive shaft, a gearbox, a lifting drive, and push rods arranged opposite each other on both sides inside the smoking box. The drive shaft, gearbox, and lifting drive are located inside the docking compartment; The docking compartment is quickly connected to the chassis body, and a plug-in terminal for electrical connection is provided between the docking compartment and the chassis body. The push rod includes a lead screw, an inner guide rail, a middle guide rail, and an outer guide rail; The lower end of the middle guide rail is fixedly connected to the docking compartment via a right-angle reversing device, and the upper end is slidably connected to the inner and outer guide rails. The lower end of the lead screw is connected to the drive shaft via a right-angle reversing device, and the upper end is connected to the internal thread of the inner guide rail. The outer and inner guide rails are installed inside the smoking chamber, and their lower ends are fixedly connected to the smoking chamber; the lifting drive is connected to the transmission shaft via a gearbox. The gearbox and right-angle commutator are fixedly connected to the docking compartment.

8. A novel internal circulation range hood according to claim 7, characterized in that, Guide components are provided on opposite sides of the chassis body that connect to the docking compartment.

9. A novel internal circulation range hood according to claim 1, characterized in that, The front cover is connected to the front side of the chassis body, and an exhaust grille is provided on the front cover at the exhaust port. The stove has a cabinet door at the front opening, and a detachable baseboard is located below the cabinet door. The baseboard has perpendicular pull strips with exhaust louvers.

10. A novel internal circulation range hood according to claim 3, characterized in that, The purification channel is equipped with multiple slide rails for sequentially placing the oil fume separation layer, the oil filter layer, and the smoke and odor removal layer. A removable cover is provided on the front side of the purification channel.

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