High efficiency range hood

Abstract

The utility model discloses a high -efficient range hood, including the smoke machine body, and the smoke machine body is equipped with the air bellow, and the air bellow includes the wainscot, the top plate and the backplate, and the top plate and the backplate are fixed on the wainscot, and the wainscot, the top plate and the backplate form the inner chamber, be equipped with the inclined volute assembly in the inner chamber, and the volute assembly is equipped with the smoke inlet. The top plate is fixed with the fixed part, and the fixed part is equipped with the guide plate, and the guide plate is located in the inner chamber and is located above the smoke inlet, and the oil fume above the smoke inlet is guided to the direction of the smoke inlet through the flow guide of the guide plate, realizes the efficient smoke exhaust effect.

Description

Technical Field

[0001] This utility model belongs to the field of kitchen appliance technology, specifically relating to a high-efficiency range hood. Background Technology

[0002] A range hood is a kitchen appliance that purifies the kitchen environment. Installed in the kitchen above the stove, it quickly removes waste from combustion and harmful fumes produced during cooking, expelling them outdoors, reducing pollution, purifying the air, and providing safety features such as protection against poisoning and explosions.

[0003] The prior art discloses a utility model patent entitled "A Duct System with Enclosure Structure" (authorization announcement number: CN221897843U). Its components are connected by screws, which makes disassembly convenient and facilitates maintenance, cleaning and replacement of components inside the volute. It offers good user comfort, good heat dissipation, more stable operation, low noise, and is convenient for actual use.

[0004] In the duct system of a range hood, the volute assembly is the core component, housing the fan motor and impeller, responsible for generating suction power. To ensure effective smoke extraction, the smoke inlet of the volute assembly needs to be as close as possible to the source of the smoke, which typically results in its inclined installation within the air box cavity of the range hood body. However, this inclined arrangement also introduces new technical challenges: the sucked-in smoke airflow, as it rushes towards the volute inlet, directly impacts the inner wall of the air box top plate located above the inlet. This impact causes airflow turbulence, increases airflow resistance, leads to loss of effective exhaust volume and air pressure, and reduces smoke extraction efficiency. Utility Model Content

[0005] The purpose of this utility model is to solve the above-mentioned technical problems existing in the prior art and to provide a high-efficiency range hood that can effectively guide the airflow of oil fumes and achieve a high-efficiency smoke extraction effect.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A high-efficiency range hood includes a range hood body, which has an air box. The air box includes a side panel, a top panel, and a back panel. The top panel and back panel are fixed to the side panel, and the side panel, top panel, and back panel form an inner cavity. An inclined volute assembly is provided in the inner cavity, and the volute assembly has a smoke inlet. The characteristic feature is that a fixing member is fixed to the top panel, and the fixing member has a guide plate. The guide plate is located in the inner cavity and above the smoke inlet. The oil fumes above the smoke inlet are guided towards the smoke inlet by the guide plate.

[0008] Furthermore, a metal part is fixed to the fastener, and the metal part is connected to an assembly base, with a guide plate mounted on the assembly base.

[0009] Furthermore, the metal part is provided with a connecting sleeve, the connecting sleeve is provided with a threaded hole, the mounting base is provided with a protrusion, the protrusion is provided with a through hole, a locking member is passed through the through hole, the locking member is threadedly connected to the threaded hole, the locking member is provided with an end, and the end presses against the protrusion.

[0010] Furthermore, the guide plate is detachably connected to the mounting base.

[0011] Furthermore, the assembly base is provided with a slot and a mounting hole, the slot and the mounting hole are connected, the guide plate is provided with a mounting block, the mounting block is embedded in the slot, the mounting block is provided with a limiting member, the limiting member passes through the mounting hole and is limited at the assembly base.

[0012] Furthermore, the limiting component includes a connecting limiting shaft and a limiting head, with the limiting shaft passing through a mounting hole and the limiting head limiting the position at the mounting base.

[0013] Furthermore, the limiting shaft and the limiting head are provided with cavities and gaps, which are connected, allowing the limiting head to deform towards the central axis of the limiting shaft.

[0014] Furthermore, the mounting base is detachably connected to a protective sleeve, which has a communicating opening and a cavity, through which the limiting head extends into the cavity.

[0015] Furthermore, the mounting base is provided with an inner groove, and the bottom of the protective sleeve is embedded in the inner groove.

[0016] Furthermore, the fastener is provided with side plate one and side plate two, the volute assembly is provided with a fixing plate, the surrounding plate is provided with an edge portion, the fastener is fixed to the top plate by screws, side plate one is fixed to the fixing plate by screws, and side plate two is fixed to the edge portion by screws.

[0017] This utility model, by adopting the above-mentioned technical solution, has the following beneficial effects:

[0018] This invention incorporates a guide plate, which smoothly directs the fumes that would otherwise directly impact the top plate towards the smoke inlet, allowing the airflow to enter the volute with less resistance. With the same fan power, the reduced internal flow resistance results in a larger actual air volume and better fume extraction.

[0019] At the same time, the fumes are smoothly discharged, reducing their residence time in the inner cavity, thereby slowing down the condensation rate of oil stains, making the inside of the machine cleaner and easier to maintain later. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings:

[0021] Figure 1 This is a schematic diagram of the structure of a high-efficiency range hood according to the present invention;

[0022] Figure 2 This is a schematic diagram of the structure of the bellows in this utility model;

[0023] Figure 3 This is a schematic diagram of the internal structure of the air box in this utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the fastener fixed to the top plate in this utility model;

[0025] Figure 5 This is a schematic diagram of the structure of the fixing component in this utility model;

[0026] Figure 6 This is a schematic diagram of the connection between the metal parts, the mounting base, and the guide plate in this utility model;

[0027] Figure 7 This is a schematic diagram of the structure of the metal part in this utility model;

[0028] Figure 8 This is a schematic diagram of the locking component in this utility model;

[0029] Figure 9 This is a schematic diagram of the assembly base in this utility model;

[0030] Figure 10 This is a schematic diagram of the guide plate in this utility model;

[0031] Figure 11 for Figure 10 Enlarged structural diagram at point A;

[0032] Figure 12 This is a schematic diagram of another embodiment of the connection between the mounting base and the guide plate in this utility model;

[0033] Figure 13 for Figure 12 Schematic diagram of the middle assembly base;

[0034] Figure 14 for Figure 13 Enlarged structural diagram at point B;

[0035] Figure 15 for Figure 12 A schematic diagram of the structure of the protective sleeve.

[0036] In the diagram, 1-the main body of the range hood; 2-the air box; 3-the surrounding panel; 4-the top plate; 5-the back plate; 6-the inner cavity; 7-the volute assembly; 8-the smoke inlet; 9-the fixing part; 10-the second side plate; 11-the first side plate; 12-the mounting base; 13-the guide plate; 14-the metal part; 15-the connecting sleeve; 16-the threaded hole; 17-the locking part; 18-the end; 19-the groove; 20-the protrusion; 21-the through hole; 22-the mounting hole; 23-the mounting block; 24-the limiting part; 25-the limiting shaft; 26-the limiting head; 27-the cavity; 28-the gap; 29-the protective sleeve; 30-the opening; 31-the cavity; 32-the inner groove; 33-the fixing plate. Detailed Implementation

[0037] like Figures 1 to 15 As shown, this utility model discloses a high-efficiency range hood, including a range hood body 1. The range hood body 1 is equipped with a wind box 2, which includes a surrounding plate 3, a top plate 4, and a back plate 5. The top plate 4 and the back plate 5 are fixed to the surrounding plate 3, and the surrounding plate 3, the top plate 4, and the back plate 5 form an inner cavity 6. This solution is prior art, specifically referring to a utility model patent for a duct system with a surrounding plate structure (authorization announcement number: CN221897843U). An inclined volute assembly 7 is provided in the inner cavity 6, and the volute assembly 7 is fixed to the surrounding plate 3 and the top plate 4. The volute assembly 7 has a smoke inlet 8.

[0038] The fixing component 9 has a first side plate 11 and a second side plate 10. The volute assembly 7 has a fixing plate 33, and the surrounding plate 3 has an edge portion 34. The fixing component 9 is fixed to the top plate 4 by screws, the first side plate 11 is fixed to the fixing plate 33 by screws, and the second side plate 10 is fixed to the edge portion 34 by screws. A metal part 14 is fixed to the fixing component 9, and the metal part 14 is connected to the mounting base 12. The guide plate 13 is located in the inner cavity 6 and is also installed on the mounting base 12, and is located above the smoke inlet 8. The oil fumes above the smoke inlet 8 are guided towards the smoke inlet 8 by the guide plate 13.

[0039] This invention adds a guide plate 13, which smoothly guides the fumes that would otherwise directly impact the top plate 4 towards the smoke inlet 8, allowing the airflow to enter the volute with less resistance. With the same fan power, the reduced internal flow resistance results in a larger actual air volume and better fume extraction. Simultaneously, the smooth removal of fumes reduces their residence time in the inner cavity 6, thus slowing down the condensation of oil stains, making the machine cleaner and easier to maintain later.

[0040] Metal part 14 is provided with a connecting sleeve 15, and the connecting sleeve 15 is provided with a threaded hole 16. Mounting base 12 is provided with a protrusion 20, and the protrusion 20 is provided with a through hole 21. A locking member 17 passes through the through hole 21. The diameter of the through hole 21 is slightly larger than the diameter of the rod of the locking member 17. The locking member 17 is threadedly connected to the threaded hole 16. The locking member 17 is provided with an end 18, and the end 18 presses against the protrusion 20. The mounting base 12 can be separated from the metal part 14 simply by removing the locking member 17, which greatly facilitates subsequent cleaning, maintenance or component replacement.

[0041] The guide plate 13 is detachably connected to the mounting base 12. This utility model specifically designs two embodiments for the installation method of the guide plate 13:

[0042] Example 1 of guide plate 13 installation method: The mounting base 12 has a slot 19 and a mounting hole 22, which are connected. The guide plate 13 has a mounting block 23, which is embedded in the slot 19. The mounting block 23 has a limiting member 24, which is made of elastic plastic. The limiting member 24 includes an integrally formed limiting shaft 25 and a limiting head 26. The limiting shaft 25 passes through the mounting hole 22, and the limiting head 26 is limited at the mounting base 12. The limiting shaft 25 and the limiting head 26 have a cavity 27 and a gap 28, which are connected, allowing the limiting head 26 to deform towards the central axis of the limiting shaft 25.

[0043] During installation, the worker simply aligns the mounting block 23 with the slot 19 and inserts it, then presses down the limiting member 24. As the limiting head 26 passes through the mounting hole 22, it is compressed by the hole wall and undergoes elastic deformation towards the central axis, allowing it to pass smoothly. Once the limiting head 26 has completely passed through the mounting hole 22, it returns to its original shape (or "springs open") due to the elasticity of its material. Since its size is larger than the mounting hole 22, reliable mechanical self-locking is achieved, preventing the guide plate 13 from dislodging.

[0044] Normally, simply squeezing the limiting head 26 towards the central axis allows it to retract and pass through the mounting hole 22, thus removing the entire guide plate 13. The disassembly process is simple, simplifying the assembly and cleaning / maintenance process.

[0045] Example 2 of guide plate 13 installation method: Based on the structure of example 1 of guide plate 13 installation method, the mounting base 12 is provided with an inner groove 32, and the bottom of the protective sleeve 29 is embedded in the inner groove 32, so that the protective sleeve 29 is detachably connected to the mounting base 12. The protective sleeve 29 is made of elastic plastic. The protective sleeve 29 is provided with a communicating opening 30 and a cavity 31, and the limiting head 26 extends into the cavity 31 through the opening 30. Adding an independent, replaceable protective sleeve 29 to wrap around the limiting head 26 provides protection for the limiting head 26 and greatly extends the service life of the entire guide plate 13 installation structure.

[0046] The above are merely specific embodiments of this utility model, but the technical features of this utility model are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on this utility model to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of this utility model.

Claims

1. A high-efficiency range hood, comprising a range hood body, the range hood body having an air box, the air box including a side panel, a top panel, and a back panel, the top panel and the back panel being fixed to the side panel, the side panel, the top panel, and the back panel forming an inner cavity; an inclined volute assembly being provided in the inner cavity, the volute assembly having a smoke inlet; characterized in that: The top plate is fixed with a fixing member, and the fixing member is provided with a guide plate. The guide plate is located in the inner cavity and above the smoke inlet. The oil fumes above the smoke inlet are guided towards the smoke inlet by the guide plate.

2. The high-efficiency range hood according to claim 1, characterized in that: The fastener has a metal component fixed to it, the metal component is connected to an assembly base, and the guide plate is mounted on the assembly base.

3. The high-efficiency range hood according to claim 2, characterized in that: The metal part is provided with a connecting sleeve, the connecting sleeve is provided with a threaded hole, the mounting base is provided with a protrusion, the protrusion is provided with a through hole, a locking member is passed through the through hole, the locking member is threadedly connected to the threaded hole, the locking member is provided with an end, and the end presses against the protrusion.

4. A high-efficiency range hood according to claim 2 or 3, characterized in that: The guide plate is detachably connected to the mounting base.

5. The high-efficiency range hood according to claim 4, characterized in that: The assembly base has a slot and a mounting hole. The slot and the mounting hole are connected. The guide plate has a mounting block. The mounting block is embedded in the slot. The mounting block has a limiting member. The limiting member passes through the mounting hole and is limited at the assembly base.

6. The high-efficiency range hood according to claim 5, characterized in that: The limiting component includes a connecting limiting shaft and a limiting head, the limiting shaft passing through the mounting hole and the limiting head being limited at the mounting base.

7. A high-efficiency range hood according to claim 6, characterized in that: The limiting shaft and the limiting head are provided with a cavity and a gap, and the cavity and the gap are connected, so that the limiting head can deform towards the central axis of the limiting shaft.

8. A high-efficiency range hood according to claim 6, characterized in that: The mounting base is detachably connected to a protective sleeve, which has a communicating opening and a cavity. The limiting head extends into the cavity through the opening.

9. A high-efficiency range hood according to claim 8, characterized in that: The mounting base is provided with an inner groove, and the bottom of the protective sleeve is embedded in the inner groove.

10. A high-efficiency range hood according to claim 1, characterized in that: The fastener has a first side plate and a second side plate. The volute assembly has a fixing plate. The enclosure has an edge portion. The fastener is fixed to the top plate by screws. The first side plate is fixed to the fixing plate by screws. The second side plate is fixed to the edge portion by screws.

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