A new type of range hood

Abstract

This utility model discloses a novel range hood structure, including a casing assembly, a fan assembly, a smoke extraction chamber assembly, a lifting assembly, a touch switch, and a circuit module. The casing assembly includes a casing body, a front cover, and a light panel. The inner cavity of the casing body houses the fan assembly, which communicates with the upper exhaust vent. A quick-release front cover is mounted on the front opening, and a liftable smoke extraction chamber assembly is mounted on the lower opening. A quick-release light panel is mounted on the lower exterior of the casing body, outside the lower opening. A mounting cavity is formed between the light panel and the casing body. A raised oil-proof baffle is located on the inner side of the light panel around the mounting opening. The touch switch is mounted on the glass plate of the mounting cavity. The smoke extraction chamber assembly is connected to the casing body via the lifting assembly. This utility model improves the reliability, stability, and quiet operation of the lifting assembly. The touch switch and circuit module have a long service life and are easy to maintain and disassemble. It features smooth oil flow, safety, an aesthetically pleasing design, and does not occupy cooking space.

Description

Technical Field

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

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

[0003] 1. Oil stains accumulate and are difficult to clean, especially inside the glass of the light panel and inside the touch switch, causing the switch to malfunction. Oil entering the light panel seriously affects the user experience.

[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 and produces a lot of noise; moreover, the drive shaft is a single piece, making it 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 range hood with a new structure to improve the reliability, stability and quietness of the lifting component, and extend the service life of the touch switch and circuit module; at the same time, the touch switch and lifting component should be easy to repair and disassemble, the oil circuit should be smooth and safe; and it should be a hidden structure, which is aesthetically pleasing and does not take up cooking space. Utility Model Content

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

[0009] A novel range hood structure includes a casing assembly, a fan assembly, a smoke extraction box assembly, a lifting assembly, a touch switch, and a circuit module, characterized in that:

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

[0011] The inner cavity of the chassis body is provided with a wind box assembly that communicates with the upper smoke exhaust port, the front opening is provided with a quick-release front cover, and the lower opening is provided with a liftable smoke box assembly.

[0012] A quick-release light panel is provided at the lower exterior of the chassis body, outside of the non-bottom opening.

[0013] A mounting cavity is formed between the lamp panel and the chassis body. A through mounting port is provided in the lamp panel, and a sealed glass plate is provided on the mounting port.

[0014] The inner side of the lamp panel is provided with a raised oil-proof baffle around the perimeter of the mounting opening;

[0015] The touch switch is mounted on the glass plate of the mounting cavity;

[0016] The smoking box assembly is connected to the main body of the chassis via a lifting assembly within the inner cavity.

[0017] Preferably, the bellows assembly includes a mounting plate, a bellows body, and a wind turbine assembly disposed within the bellows body;

[0018] The mounting plate forms a smoke collection chamber by connecting the inner cavity with the lower opening in the area of ​​the smoke collection chamber.

[0019] The air box body is located in the smoke collection chamber and is connected to the chassis body via a mounting plate;

[0020] The circuit module is located in the smoke collection chamber and is connected to the mounting plate.

[0021] Preferably, the chassis body is connected to the front cover and the light panel by easy-to-remove clips.

[0022] Preferably, the chassis body forms an oil collection groove around the lower opening;

[0023] The oil collection tank has a through first oil leakage hole on both sides;

[0024] The bottom of the air box body is inclined downward towards the side near the oil collection tank, and multiple second oil leakage holes are opened on the lower side of the bottom.

[0025] Preferably, the smoking box assembly includes a smoking box body and an oil cup detachably connected to the lower end of the smoking box body;

[0026] The smoking box body is connected to the main body of the machine body via a lifting assembly;

[0027] The main body of the chassis is concealed inside a cabinet; the smoking box assembly has an on state and an off state;

[0028] When the machine is powered on, the entire smoking box assembly is exposed below the chassis body.

[0029] When the machine is off, the smoking box assembly is completely housed within the inner cavity of the main body of the chassis.

[0030] Preferably, the lifting assembly includes a drive shaft, a gearbox, a lifting drive, and push rods arranged opposite each other on both sides inside the smoking box body;

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

[0032] The upper end of the middle guide rail is fixedly connected to the chassis body through a right-angle commutator, and the lower end is slidably sleeved with the inner guide rail and the outer guide rail.

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

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

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

[0036] The gearbox is connected to the main body of the chassis.

[0037] Preferably, the lifting driver is a brushless DC motor.

[0038] Preferably, the cross-section of the drive shaft is polygonal;

[0039] The drive shaft includes two coaxial linkage shafts, which are connected by a detachable sleeve.

[0040] A locking nut is provided between the sleeve and the linkage shaft.

[0041] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0042] 1. The quick-release design of the front cover and light panel to the chassis body facilitates the maintenance and disassembly of the air box assembly and lifting assembly inside the chassis body, as well as the maintenance or replacement of the glass plate and touch switch inside the installation cavity.

[0043] 2. By setting raised oil-proof baffles around the mounting opening on the inner side of the lamp panel, and sealing the connection between the glass panel and the mounting opening with glass glue, oil can be effectively prevented from entering the glass panel, thereby effectively avoiding the problem of oil leakage from the touch switch, extending the service life of the touch switch and improving its reliability.

[0044] 3. The circuit module is located outside the bellows body and away from the smoke collection chamber of the smoke box assembly, avoiding the situation where the existing technology is exposed to the oil chamber and is easily damaged, thus extending the service life of the circuit module.

[0045] 4. The oil collected inside the blower body drips into the oil collection tank through the second oil drain hole at the inclined bottom of the blower body. Oil entering the oil collection tank then drips into the oil cup through the first oil drain holes on both sides along the outer surface of the suction box assembly or directly. Additionally, oil collected inside the suction box flows directly into the oil cup, while external oil is scraped off the surface by brushes around the casing when the machine is turned off. This achieves a reliable and smooth oil path, greatly reducing the risk of oil leakage and improving safety.

[0046] 5. The main body of the range hood is hidden inside the cabinet. When the range hood is off, the entire unit is hidden inside the cabinet. When the range hood is on, only the suction box component protrudes, which is simple, elegant and beautiful, and does not take up cooking space.

[0047] 6. 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.

[0048] 7. The drive shaft consists of two coaxial linkage shafts that are detachably connected by a sleeve, which facilitates the replacement and maintenance of the transmission components of the lifting assembly. Attached Figure Description

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

[0050] Figure 2 This is a schematic diagram illustrating the guarantee of this utility model;

[0051] Figure 3 This is the left view of the present invention;

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

[0053] Figure 5 for Figure 4 Enlarged view of a portion of point C in the middle;

[0054] Figure 6 This is the front view of the present invention (with the front cover hidden);

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

[0056] Figure 8 This is a three-dimensional structural diagram of the bellows assembly in this utility model;

[0057] Figure 9 for Figure 4 Enlarged view of a portion of point D;

[0058] Figure 10 for Figure 6 Schematic diagram of the cross-sectional structure of the EE;

[0059] Figure 11 This is a three-dimensional structural diagram of the present invention connected to the mounting bracket;

[0060] The components include: chassis assembly 1, air box assembly 2, smoke box assembly 3, lifting assembly 4, circuit module 5, glass plate 6, sleeve 7, locking nut 8, chassis body 11, front cover 12, light panel 13, mounting plate 21, air box body 22, smoke box body 31, oil cup 32, drive shaft 41, gearbox 42, lifting driver 43, push rod 44, right-angle reversing device 45, mounting cavity 10, smoke collection cavity 20, oil collection trough 30, first oil leakage hole 40, roller 50, brush 60, mounting bracket 70, mounting port 131, oil-proof baffle 132, linkage shaft 411, lead screw 441, inner guide rail 442, middle guide rail 443, outer guide rail 444, and second oil leakage hole 22a. Detailed Implementation

[0061] 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.

[0062] 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.

[0063] 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.

[0064] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments:

[0065] like Figure 1-9 As shown, a novel range hood includes a chassis assembly 1, a fan assembly 2, a smoke extraction box assembly 3, a lifting assembly 4, a touch switch (not shown in the figure), and a circuit module 5. The chassis assembly 1 includes a chassis body 11, a front cover 12, and a light panel 13.

[0066] The inner cavity of the chassis body 11 is provided with a wind box assembly 2 that communicates with the upper smoke exhaust port, a quick-release front cover 12 is provided on the front opening, and a liftable smoke box assembly 3 is provided on the lower opening.

[0067] A quick-release light panel 13 is provided at the lower exterior of the chassis body 11, where it is not at the bottom opening.

[0068] The lamp panel 13 and the chassis body 11 form an installation cavity 10. The lamp panel 13 has a through installation port 131, and a sealed glass plate 6 is provided on the installation port 131.

[0069] The inner side of the lamp panel 13 is provided with a raised oil-proof baffle 132 around the mounting opening 131;

[0070] The touch switch is disposed on the glass plate 6 of the mounting cavity 10;

[0071] The smoking box assembly 3 is connected to the chassis body 11 via the lifting assembly 4 in the inner cavity.

[0072] In this embodiment, the structural design that allows the front cover 12 and the light panel 13 to be quickly connected to the chassis body 11 facilitates the maintenance and disassembly of the air box assembly 2 and the lifting assembly 4 inside the chassis body 11, as well as the maintenance or replacement of the glass plate 6 and the touch switch inside the mounting cavity 10.

[0073] In this embodiment, by providing raised oil-proof baffles 132 around the mounting opening 131 on the inner side of the lamp panel 13, and sealing the connection between the glass plate 6 and the mounting opening 131 with glass glue, oil can be effectively prevented from entering the glass plate 6, thereby effectively avoiding the problem of oil leakage from the touch switch, extending the service life of the touch switch and improving its reliability.

[0074] Furthermore, the bellows assembly 2 includes a mounting plate 21, a bellows body 22, and a wind turbine assembly (not shown in the figure) disposed within the bellows body 22;

[0075] The mounting plate 21 forms a smoke collection chamber 20 by connecting the inner cavity with the lower opening in the area of ​​the lower opening.

[0076] The air box body 22 is located in the smoke collection chamber 20 and is connected to the chassis body 11 via the mounting plate 21;

[0077] The circuit module 5 is located in the smoke collection chamber 20 and is connected to the mounting plate 21.

[0078] In this embodiment, the circuit module 5 is located outside the bellows body 22 and away from the smoke collection chamber 20 of the smoke box assembly 3, thus avoiding the situation in the prior art where the circuit module 5 is exposed to the oil chamber and is easily damaged, and extending the service life of the circuit module 5.

[0079] In this embodiment, when the range hood is working, the impeller assembly is powered on and starts, creating a negative pressure at the smoke extraction end of the smoke extraction box assembly 3. This draws the oil fumes from outside the range hood into the smoke extraction chamber inside the smoke extraction box assembly 3. After passing through the outlet of the smoke extraction chamber, the fumes are directly drawn into the blower body 22. Under the centrifugal force of the impeller assembly, the oil and fumes are separated. The fumes are discharged from the exhaust port, while the oil is concentrated in the blower body 22 and flows through the oil passage to the lower oil cup 32 of the smoke extraction box assembly 3. The oil passage is smooth and safe.

[0080] Furthermore, such as Figure 2 As shown, the chassis body 11 is easily connected to the front cover 12 and the light panel 13 by snap-fit.

[0081] Furthermore, such as Figure 1 , 2 As shown in Figures 7 and 8, the chassis body 11 forms an oil collection groove 30 around the lower opening;

[0082] The oil collection tank 30 has through first oil leakage holes 40 on both sides;

[0083] The bottom of the air box body 22 is inclined downward towards the side close to the oil collection tank 30, and a plurality of second oil leakage holes 22a are provided on the lower side of the bottom.

[0084] In this embodiment, rollers 50 are provided around the lower opening between the chassis body 11 and the smoke box body 31 to improve the stability of lifting and lowering, and a brush 60 is provided to scrape off the oil on the surface of the smoke box body 31 when the machine is turned off.

[0085] In this embodiment, the oil collected inside the bellows body 22 drips into the oil collection tank 30 through the second oil leakage hole 22a at the inclined bottom of the bellows body 22. The oil entering the oil collection tank 30 then drips into the oil cup 32 through the first oil leakage holes 40 on both sides along the outer surface of the suction box assembly 2 or directly. Additionally, the oil collected inside the suction box body 31 flows directly into the oil cup 32, while the oil outside is scraped off the surface by the brushes 60 around the chassis body 11 when the machine is turned off, flowing into the oil cup 32. This achieves a reliable and smooth oil path, greatly reducing the risk of oil leakage and improving safety.

[0086] Furthermore, such as Figure 1 , 2 As shown, the smoking box assembly 3 includes a smoking box body 31 and an oil cup 32 detachably connected to the lower end of the smoking box body 31.

[0087] The smoking box body 31 is connected to the chassis body 11 via the lifting assembly 4;

[0088] The chassis body 11 is concealed inside the cabinet; the smoking box assembly 3 has an on state and an off state;

[0089] When the machine is powered on, the entire smoking box assembly 3 is exposed below the chassis body 11.

[0090] When the machine is off, the smoking box assembly 3 is completely housed within the inner cavity of the chassis body 11.

[0091] In this embodiment, since the main body 11 of the range hood is hidden inside the cabinet, and the entire range hood is hidden inside the cabinet when it is off, only the suction box assembly 2 protrudes when it is on, which is simple, elegant and beautiful and does not take up cooking space.

[0092] Furthermore, such as Figure 4 , 5 As shown in Figures 7 and 9, the lifting assembly 4 includes a drive shaft 41, a gearbox 42, a lifting driver 43, and push rods 44 arranged opposite each other on both sides inside the smoking box body 31.

[0093] The push rod 44 includes a lead screw 441, an inner guide rail 442, a middle guide rail 443, and an outer guide rail 444;

[0094] The upper end of the middle guide rail 443 is fixedly connected to the chassis body 11 through a right-angle commutator 45, and the lower end is slidably sleeved between the inner guide rail 442 and the outer guide rail 444.

[0095] The upper end of the lead screw 441 is connected to the drive shaft 41 via a right-angle reversing device 45, and the lower end is connected to the inner guide rail 442 via an internal thread.

[0096] The outer guide rail 444 and the inner guide rail 442 are disposed inside the smoking box body 31, and their lower ends are fixedly connected to the smoking box body 31.

[0097] The lifting drive 43 is connected to the drive shaft 41 via the gearbox 42;

[0098] The gearbox is connected to the main body of the chassis.

[0099] In this embodiment, compared with the existing single-motor single-pushrod 44 structure, a single lifting driver 43 drives the transmission shaft 41 to rotate through the gearbox 42. The rotation of the transmission shaft 41 drives the lead screws of the two push rods 44 to rotate synchronously through the right-angle commutators 45 at both ends. Thus, the lifting and lowering of the cylinders of the push rods 44 synchronizes the lifting and lowering of both sides of the smoking box body 31, ensuring a smooth lifting and lowering process of the smoking box body 31 and solving the problem of asynchronous tilting on both sides of the smoking box body 31 during the lifting and lowering process, resulting in shaking, abnormal noise, or even jamming.

[0100] In this implementation, such as Figure 9As shown, when the push rod 44 is working, the lead screw 441 rotates in the opposite direction to push the threaded inner guide rail 442 and outer guide rail 444 to slide relative to the middle guide rail 443. That is, the whole formed by the inner guide rail 442, outer guide rail 443 and smoking box body 31 lifts and lowers relative to the whole formed by the lead screw 441, middle guide rail 443 and chassis body 11. Compared with the existing lifting structure, the lifting is more stable and smooth.

[0101] Furthermore, such as Figure 4 , 5 As shown in Figures 7 and 8, in order to improve the smoothness and stability of the lifting of the smoking box assembly 3 and reduce the noise of the lifting operation, the lifting driver 43 is a brushless DC motor.

[0102] In this embodiment, the lifting driver 43 uses a 24V brushless DC motor, which achieves forward and reverse rotation by controlling the current direction. Compared with the prior art, the output torque is stable, ensuring that the push rod 44 is driven synchronously.

[0103] Furthermore, such as Figure 4 , 5 As shown in Figures 7 and 8, the transmission components of the lifting assembly 4 are designed for easy replacement and maintenance; the cross-section of the transmission shaft 41 is polygonal.

[0104] The drive shaft 41 includes two coaxial linkage shafts 411, and the two linkage shafts 411 are connected by a detachable sleeve 7.

[0105] A locking nut 8 is provided between the sleeve 7 and the linkage shaft 411.

[0106] In this implementation, during maintenance and disassembly, loosening the locking nuts 8 at both ends of the sleeve 7 will separate the two linkage shafts 411, thus facilitating the maintenance of the transmission components on both sides.

[0107] In this embodiment, such as Figure 11 As shown, the back of the chassis body 11 is provided with an adjustable mounting bracket 70; during installation, the chassis body 11 is connected to the installation position through the mounting bracket 70, and the height can be adjusted according to the requirements of the installation position.

[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 range hood, comprising a casing assembly, a fan assembly, a smoke extraction box assembly, a lifting assembly, a touch switch, and a circuit module, characterized in that: The chassis assembly includes a chassis body, a front cover, and a light panel; The inner cavity of the chassis body is provided with a wind box assembly that communicates with the upper smoke exhaust port, the front opening is provided with a quick-release front cover, and the lower opening is provided with a liftable smoke box assembly. A quick-release light panel is provided at the lower exterior of the chassis body, outside of the non-bottom opening. A mounting cavity is formed between the lamp panel and the chassis body. A through mounting port is provided in the lamp panel, and a sealed glass plate is provided on the mounting port. The inner side of the lamp panel is provided with a raised oil-proof baffle around the perimeter of the mounting opening; The touch switch is mounted on the glass plate of the mounting cavity; The smoking box assembly is connected to the main body of the chassis via a lifting assembly within the inner cavity.

2. The range hood with a novel structure according to claim 1, characterized in that, The bellows assembly includes a mounting plate, a bellows body, and a wind turbine assembly disposed within the bellows body; The mounting plate forms a smoke collection chamber by connecting the inner cavity with the lower opening in the area of ​​the smoke collection chamber. The air box body is located in the smoke collection chamber and is connected to the chassis body via a mounting plate; The circuit module is located in the smoke collection chamber and is connected to the mounting plate.

3. A new type of structure of the range hood according to claim 1, characterized in that, The chassis body is easily connected to the front cover and light panel with snap-fit ​​fasteners.

4. A new type of structure of the range hood according to claim 2, characterized in that, The chassis body forms an oil collection groove around the lower opening; The oil collection tank has a through first oil leakage hole on both sides; The bottom of the air box body is inclined downward towards the side near the oil collection tank, and multiple second oil leakage holes are opened on the lower side of the bottom.

5. A new type of structure of the range hood according to claim 1, characterized in that, The smoking box assembly includes a smoking box body and an oil cup detachably connected to the lower end of the smoking box body; The smoking box body is connected to the main body of the machine body via a lifting assembly; The main body of the chassis is concealed inside a cabinet; the smoking box assembly has an on state and an off state; When the machine is powered on, the entire smoking box assembly is exposed below the chassis body. When the machine is off, the smoking box assembly is completely housed within the inner cavity of the main body of the chassis.

6. A new type of structure of the range hood according to claim 1 or 5, characterized in that, The lifting assembly includes a drive shaft, a gearbox, a lifting drive, and push rods arranged opposite each other on both sides inside the smoking box body. The push rod includes a lead screw, an inner guide rail, a middle guide rail, and an outer guide rail; The upper end of the middle guide rail is fixedly connected to the chassis body through a right-angle commutator, and the lower end is slidably sleeved with the inner guide rail and the outer guide rail. The upper end of the lead screw is connected to the drive shaft via a right-angle reversing device, and the lower end is connected to the internal thread of the inner guide rail. The outer guide rail and the inner guide rail are set inside the smoking box body, and their lower ends are fixedly connected to the smoking box body. The lifting drive is connected to the drive shaft via a gearbox; The gearbox is connected to the main body of the chassis.

7. A new type of structure of the range hood according to claim 6, characterized in that, The lifting driver is a brushless DC motor.

8. A new type of structure of the range hood according to claim 6, characterized in that, The cross-section of the drive shaft is polygonal; The drive shaft includes two coaxial linkage shafts, which are connected by a detachable sleeve. A locking nut is provided between the sleeve and the linkage shaft.

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