Adjustable fan assembly and range hood

Abstract

The utility model relates to the field of kitchen equipment, and particularly discloses an adjustable fan assembly and a range hood. An adjustable fan assembly comprises an air bellow, a centrifugal fan fixedly connected to the interior of the air bellow and a conveying box used for conveying gas, the air bellow is detachably connected with the conveying box, the air bellow comprises a plurality of installation plates which are sequentially connected end to end and are enclosed and a wind shield detachably connected to one side of the installation plates, and the installation plates are provided with exhaust outlets; the outer wall of the conveying box is connected with a joint plate used for being connected with the air supply box, and the multiple mounting plates and the joint plate are each provided with a fastening hole used for being connected with a fastening piece. The range hood comprises a machine body, a separation assembly arranged in the machine body and the adjustable fan assembly, the conveying box and the air bellow are fixedly connected to the top of the machine body, and a purification module is arranged in the conveying box. The device has the effect of adapting to different pipeline layouts.

Description

Technical Field

[0001] This application relates to the field of kitchen equipment, and more particularly to an adjustable fan assembly and a range hood. Background Technology

[0002] A range hood is a common kitchen appliance whose main function is to exhaust cooking fumes outdoors, thereby reducing the harm of cooking fumes to the human body.

[0003] A range hood typically includes a frame, a housing fixedly connected to the top of the frame, and a centrifugal fan installed inside the housing. The housing has an exhaust port. The rotating fan draws the fumes from below the range hood into the fan and transports them through the exhaust port into the exhaust pipe, thereby guiding them outdoors.

[0004] However, existing range hoods cannot adjust the position of the exhaust vents. In different kitchens, the layout of the exhaust ducts is not the same. The exhaust duct may run down from the ceiling or through the side wall. In this case, in order to connect the exhaust duct and the range hood, the exhaust duct needs to be fitted with reducers and elbows to adapt to the range hood, which increases the installation cost. Utility Model Content

[0005] To facilitate adaptation to kitchens with different layouts, this application provides an adjustable fan assembly and a range hood.

[0006] Firstly, the adjustable fan assembly provided in this application adopts the following technical solution:

[0007] An adjustable fan assembly includes a wind box, a centrifugal fan fixedly connected inside the wind box, and a conveying box for conveying gas. The wind box and the conveying box are detachably connected. The wind box includes a plurality of mounting plates that are connected end to end and enclose each other, and a baffle plate that is detachably connected to one side of the plurality of mounting plates. The mounting plates have exhaust ports. The exhaust port of the centrifugal fan is directly opposite the exhaust port. The outer wall of the conveying box is connected to a connecting plate for connecting the wind box. The plurality of mounting plates and the connecting plate are provided with fastening holes for fastener connection.

[0008] By adopting the above technical solution, the direction of the air outlet can be adjusted. By rotating the entire air box, the position of the exhaust outlet can be changed, thereby adapting to the pipe connection requirements of different directions and achieving multi-directional adaptation.

[0009] Optionally, connecting plates are fixedly connected to the inner wall of the mounting plate on both sides near the wind deflector. The connecting plates have a first mounting hole, and the wind deflector has a second mounting hole directly opposite the first mounting hole. Both the first and second mounting holes are used for fastener connection.

[0010] By adopting the above technical solution, the connecting plate provides a flat, smooth interface for the baffle plate, ensuring the stability of the baffle plate connection and preventing loosening or abnormal noise under the high vibration of the fan operation. At the same time, this connection structure facilitates the addition of sealing materials to the connection surface, thereby ensuring the airtightness of the housing, preventing air leakage, and thus guaranteeing fan efficiency.

[0011] Optionally, the bellows is provided with reinforcing ribs inside, the reinforcing ribs are fixedly connected to the inner wall of the mounting plate, and the two ends of the reinforcing ribs abut against the inner walls of the two side mounting plates respectively.

[0012] By adopting the above technical solutions, the overall structural strength of the bellows can be effectively improved, deformation of the bellows can be prevented, and the durability and reliability of the product can be ensured.

[0013] Optionally, the centrifugal fan is connected to mounting brackets on both sides, and the mounting brackets are detachably connected to the reinforcing ribs.

[0014] Optionally, the conveying box has a snap-fit ​​groove on the side near the air box, and a connecting protrusion is fixedly connected to the bottom wall of the snap-fit ​​groove. Snap-fit ​​blocks for inserting into the snap-fit ​​groove are fixedly connected to both sides of the mounting plate, and the snap-fit ​​blocks have insertion slots for inserting the connecting protrusion.

[0015] By adopting the above technical solution, the locking slot and locking block can achieve pre-positioning, ensuring that the connecting protrusion can be aligned with the insertion slot. Then, the bellows is pushed in, so that the connecting protrusion is inserted into the insertion slot, thereby completing the installation. This makes the final fastening operation simple and fast, effectively improving installation efficiency.

[0016] Optionally, the connecting protrusion includes a connecting part fixedly connected to the bottom wall of the snap-fit ​​groove and a plug fixedly connected to the end of the connecting part. The diameter of the plug is greater than the width of the connecting part. The inner wall of the snap-fit ​​groove is provided with an abutment plate for abutting the connecting part. A spring is provided between the abutment plate and the inner wall of the snap-fit ​​groove. One end of the spring is fixedly connected to the bottom wall of the abutment plate, and the other end is fixedly connected to the inner wall of the snap-fit ​​groove.

[0017] By adopting the above technical solution, when the connecting protrusion is inserted, the connector can press the abutment plate to both sides until it reaches the bottom of the connector groove. When the connecting protrusion abuts against the bottom wall of the connector groove, the connector does not contact the abutment plate. Under the influence of the spring, the abutment plate is pushed up, thereby squeezing the connection part and ensuring the stability of the connection.

[0018] Optionally, guide surfaces are provided at both ends of the abutment plate.

[0019] By adopting the above technical solution, the guide surfaces at both ends of the abutment plate can effectively guide the connector into or out of the connector slot, thereby improving the convenience of installation and disassembly.

[0020] Secondly, the range hood provided in this application adopts the following technical solution:

[0021] A range hood includes a body, a separation component disposed inside the body, and the aforementioned adjustable fan assembly. The conveyor box and the air box are fixedly connected to the top of the body. A purification module is disposed inside the conveyor box. An air outlet communicating with the conveyor box is opened on the top wall of the body. The air outlet is located on the side of the purification module away from the air box.

[0022] By adopting the above technical solution, when the oil fumes are drawn into the machine body, they are first separated by the separation component. The fumes continue to rise into the conveying box, where the purification module removes the small particles that have not been separated, and finally they are discharged from the exhaust port through the air box.

[0023] Optionally, the separation component includes an oil receiving plate and an oil baffle plate disposed above the oil receiving plate. Both the oil receiving plate and the oil baffle plate are provided with ventilation holes for gas to pass through. The ventilation holes of the oil receiving plate and the oil baffle plate are arranged alternately. A guide plate is fixedly connected to the inner wall of the ventilation hole, and the guide plate is inclined to the opposite side.

[0024] By adopting the above technical solution, as the fumes rise, they will come into contact with the baffle plate, thereby condensing the fumes and dripping them into the oil receiving plate along the guide plates on both sides. The guide plates on the oil receiving plate can prevent the oil droplets from falling back into the stove and other areas.

[0025] Optionally, the mounting plate has a positioning hole, and a positioning plate is inserted into the positioning hole. The positioning plate includes an insertion part and a fixing part. The fixing part is used to fix it to the machine body. The length of the insertion part is less than the length of the positioning hole.

[0026] In summary, this application has the following beneficial effects:

[0027] 1. By rotating the bellows and connecting it to the conveyor box via the connecting plate, the air outlet can be adjusted, making it easier to adapt to the duct layout in the kitchen and providing better compatibility.

[0028] 2. By setting up snap-fit ​​blocks and snap-fit ​​slots, quick connection between the bellows and the conveyor box can be achieved, effectively improving installation efficiency. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of the range hood in Embodiment 1 of this application;

[0030] Figure 2 This is an exploded view of the range hood of Embodiment 1 of this application;

[0031] Figure 3 This is a cross-sectional view of the range hood of Embodiment 1 of this application;

[0032] Figure 4 yes Figure 3 Enlarged view of point A in the middle;

[0033] Figure 5 This is a schematic diagram of the structure of the back of the bellows in Embodiment 1 of this application;

[0034] Figure 6 This is an exploded view of the range hood of Embodiment 2 of this application;

[0035] Figure 7 yes Figure 6 Enlarged view of point B in the middle;

[0036] Figure 8 This is a schematic diagram of the card block structure in Embodiment 2 of this application.

[0037] Explanation of reference numerals in the attached drawings: 1. Air box; 11. Mounting plate; 111. Exhaust outlet; 112. Positioning hole; 12. Baffle plate; 121. Second mounting hole; 13. Fastening hole; 14. Connecting plate; 141. First mounting hole; 15. Reinforcing rib; 16. Snap-fit ​​block; 161. Insertion groove; 162. Abutment plate; 1621. Guide surface; 163. Spring; 2. Centrifugal fan; 21. Mounting bracket; 3. Conveyor box; 31. Joining plate; 32. Snap-fit ​​groove; 321. Connecting protrusion; 3211. Connecting part; 3212. Plug-in connector; 4. Body; 41. Air outlet; 5. Separation component; 51. Oil receiving plate; 52. Oil baffle plate; 53. Ventilation hole; 54. Guide plate; 6. Purification module; 7. Positioning plate; 71. Plug-in part; 72. Fixing part. Detailed Implementation

[0038] The following is in conjunction with the appendix Figure 1-8 This application will be described in further detail.

[0039] Embodiment 1 of this application discloses an adjustable fan assembly and a range hood. (See also...) Figure 1 , Figure 2 and Figure 3 The adjustable fan assembly and range hood include a body 4, a separation component 5 disposed on the bottom wall of the body 4, and an adjustable fan assembly disposed on the top of the body 4. The adjustable fan assembly is used to connect with an external ventilation duct. In use, the oil fumes are conveyed upwards and first separated by the separation component 5, and then discharged into the ventilation duct through the adjustable fan assembly, thereby achieving the separation and discharge of oil fumes.

[0040] Reference Figure 1 , Figure 2 and Figure 3The adjustable fan assembly includes a wind box 1 fixedly connected to the top wall of the body 4, a centrifugal fan 2 fixedly connected inside the wind box 1, and a conveying box 3 for conveying gas. The conveying box 3 is detachably connected to the wind box 1. A purification module 6 is installed inside the conveying box 3. An air outlet 41 communicating with the conveying box 3 is opened on the top wall of the body 4. The air outlet 41 is located on the side of the purification module 6 away from the wind box 1. The wind box 1 includes several mounting plates 11 connected end to end and enclosing each other, and a baffle plate 12 detachably connected to the side of the mounting plates 11 away from the conveying box 3. One of the mounting plates 11 has an exhaust port 111. The air outlet of the centrifugal fan 2 is directly opposite the exhaust port 111. The outer wall of the conveying box 3 is provided with a connecting plate 31 for connecting the wind box 1. The mounting plates 11 and the connecting plate 31 all have fastening holes 13 for fasteners to pass through. In this embodiment, the fasteners are bolts and nuts.

[0041] During connection, the relative positions of the air box 1 and the conveying box 3 are fixed by the connecting plate 31 and fasteners. To adapt to different kitchen pipe layouts, the position of the exhaust port 111 can be adjusted by disassembling the connecting plate 31 and rotating the entire air box 1. This allows for adaptation to different pipe layouts without the need for complex reducers and elbows, reducing resistance and improving aesthetics. In this embodiment, four mounting plates 11 are provided; in other embodiments, three, five, six, or even more mounting plates 11 can be provided to achieve more angle adjustments.

[0042] Purification module 6 consists of a high-voltage electrostatic generator and an electric field plate. The high-voltage current causes the metal wires in the electric field to generate corona discharge, which ionizes and adsorbs the passing oil fume particles, thereby achieving the purification effect. This technology is existing technology and will not be described in detail here.

[0043] Reference Figure 1 , Figure 2 The inner wall of the mounting plate 11 is fixedly connected to a connecting plate 14 for connecting the wind deflector 12. The connecting plates 14 are located on both sides of the mounting plate 11. The connecting plate 14 has a first mounting hole 141, and the wind deflector 12 has a second mounting hole 121 that is directly opposite the first mounting hole 141. Both the first mounting hole 141 and the second mounting hole 121 are used for fastener connection.

[0044] Reference Figure 2 , Figure 3The bellows 1 is internally equipped with reinforcing ribs 15, which are fixedly connected to the inner wall of the mounting plate 11. Both ends of the reinforcing ribs 15 abut against the inner walls of adjacent mounting plates 11. During operation, the fan is prone to vibration and high airflow pressure. Since the bellows 1 has a relatively thin wall, the reinforcing ribs 15 effectively improve the overall structural strength of the bellows 1, preventing resonance and deformation. The centrifugal fan 2 is fixedly connected to mounting brackets 21 on both sides, and the mounting brackets 21 are detachably connected to the reinforcing ribs 15. As a load-bearing structure, the reinforcing ribs 15 effectively improve the overall structural strength and durability.

[0045] Reference Figure 3 , Figure 4 and Figure 5 The mounting plate 11 has a positioning hole 112, into which a positioning plate 7 is inserted. The positioning plate 7 includes a plug-in part 71 and a fixing part 72. The fixing part 72 is used to fix it to the body 4, and the plug-in part 71 is used to insert into the positioning hole 112. The length of the plug-in part 71 is less than the length of the positioning hole 112. While the positioning plate 7 is positioning, the plug-in part 71 and the fixing part 72 can effectively fix the bellows 1 to the top of the body 4.

[0046] Reference Figure 3 , Figure 4 The separation component 5 includes an oil receiving plate 51 and an oil baffle plate 52 disposed above the oil receiving plate 51. Both the oil receiving plate 51 and the oil baffle plate 52 have ventilation holes 53 for gas to pass through. The ventilation holes 53 of the oil receiving plate 51 and the oil baffle plate 52 are staggered and alternately arranged in the vertical projection. A guide plate 54 is fixedly connected to the inner wall of the ventilation hole 53, and the guide plate 54 is inclined to the opposite side. When the fumes are drawn into the body 4, they enter the separation component 5 through the ventilation holes 53 of the oil receiving plate 51. At this time, due to the obstruction of the oil baffle plate 52 above, the oil in the fumes is condensed and falls down along the guide plate 54 onto the oil receiving plate 51. The oil receiving plate 51 then transports the collected oil droplets into the collection container. The guide plate 54 on the oil receiving plate 51 can prevent the oil droplets from falling back into the stove or other areas.

[0047] The implementation principle of the adjustable fan assembly and range hood in Embodiment 1 of this application is as follows: During installation, the fan box 1 is rotated to adjust the exhaust port 111 to the required position, the connecting plate 31 is aligned with the fastening hole 13 on the mounting plate 11, and the connecting plate 31 is fixed with bolts and nuts to complete the fixing between the fan box 1 and the conveying box 3. At this time, the insertion part 71 of the positioning plate 7 is inserted into the positioning hole 112, and the positioning plate 7 is moved so that the fixing part 72 is aligned with the hole on the body 4. The fan box 1 and the body 4 are fixed by fasteners. At this time, the exhaust pipe can be connected to the exhaust port 111.

[0048] Embodiment 2 of this application discloses an adjustable fan assembly and a range hood, which differs from Embodiment 1 only in the connection method between the fan box 1 and the conveying box 3.

[0049] Reference Figure 6 , Figure 7 and Figure 8 The conveyor box 3 has a snap-fit ​​groove 32 on the side near the air box 1. Snap-fit ​​blocks 16 for inserting into the snap-fit ​​groove 32 are fixedly connected to both side walls of the mounting plate 11. A connecting protrusion 321 is fixedly connected to the bottom wall of the snap-fit ​​groove 32. The snap-fit ​​block 16 has an insertion slot 161 for inserting the connecting protrusion 321. By inserting the snap-fit ​​block 16 into the snap-fit ​​groove 32, the connecting protrusion 321 is inserted into the insertion slot 161, thus achieving relative fixation between the conveyor box 3 and the air box 1. Since the opposite side walls of the air box 1 are connected to snap-fit ​​blocks 16, the air outlet can be freely adjusted in direction.

[0050] Reference Figure 7 , Figure 8 The connecting protrusion 321 includes a connecting portion 3211 fixedly connected to the inner bottom wall of the snap-fit ​​groove 32 and a plug 3212 fixedly connected to the end of the connecting portion 3211. The diameter of the plug 3212 is larger than the width of the connecting portion 3211. The inner wall of the snap-fit ​​groove 161 is provided with an abutment plate 162 for abutting the connecting portion 3211. A spring 163 is provided between the abutment plate 162 and the inner wall of the snap-fit ​​groove 161. One end of the spring 163 is fixedly connected to the inner bottom wall of the snap-fit ​​groove 161, and the other end is fixedly connected to the bottom wall of the abutment plate 162. Guide surfaces 1621 are provided at both ends of the abutment plate 162. After insertion, the spring 163, in conjunction with the abutment plate 162, can play a certain role in limiting the insertion, making it difficult for the plug 3212 to be pulled out of the snap-fit ​​groove 161.

[0051] The implementation principle of the adjustable fan assembly and range hood in Embodiment 2 of this application is as follows: During installation, the fan box 1 is rotated to rotate the exhaust port 111 to the required position, and then the fan box 1 is pushed towards the side of the conveying box 3, so that the snap-fit ​​block 16 on the fan box 1 is inserted into the snap-fit ​​groove 32, and the connecting protrusion 321 in the snap-fit ​​groove 32 is inserted into the insertion groove 161 of the snap-fit ​​block 16 to complete the locking, thereby fixing the fan box 1 and the conveying box 3. The insertion part 71 of the positioning plate 7 is inserted into the positioning hole 112, and the positioning plate 7 is moved so that the fixing part 72 is aligned with the hole on the body 4. The fan box 1 and the body 4 are fixed by fasteners. At this time, the exhaust pipe can be connected to the exhaust port 111.

[0052] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An adjustable fan assembly, comprising a wind box (1), a centrifugal fan (2) fixedly connected inside the wind box (1), and a conveying box (3) for conveying gas, characterized in that: The air box (1) and the conveying box (3) are detachably connected. The air box (1) includes several mounting plates (11) that are connected end to end and enclose each other in sequence, and a baffle plate (12) that is detachably connected to one side of several mounting plates (11). The mounting plates (11) are provided with exhaust ports (111). The air outlet of the centrifugal fan (2) is directly opposite the exhaust port (111). The outer wall of the conveying box (3) is connected with a connecting plate (31) for connecting the air box (1). Several mounting plates (11) and connecting plates (31) are provided with fastening holes (13) for fastener connection.

2. The adjustable fan assembly according to claim 1, characterized in that: The inner wall of the mounting plate (11) is fixedly connected to the two sides near the wind deflector (12) with a connecting plate (14). The connecting plate (14) has a first mounting hole (141), and the wind deflector (12) has a second mounting hole (121) opposite to the first mounting hole (141). Both the first mounting hole (141) and the second mounting hole (121) are used for fastener connection.

3. The adjustable fan assembly according to claim 1, characterized in that: The bellows (1) is provided with a reinforcing rib (15) inside. The reinforcing rib (15) is fixedly connected to the inner wall of the mounting plate (11). The two ends of the reinforcing rib (15) abut against the inner walls of the two mounting plates (11) on both sides respectively.

4. The adjustable fan assembly according to claim 3, characterized in that: The centrifugal fan (2) is connected to mounting brackets (21) on both sides, and the mounting brackets (21) are detachably connected to the reinforcing ribs (15).

5. The adjustable fan assembly according to claim 1, characterized in that: The conveying box (3) has a snap-fit ​​groove (32) on the side near the air box (1). A connecting protrusion (321) is fixedly connected to the bottom wall of the snap-fit ​​groove (32). Snap-fit ​​blocks (16) for inserting into the snap-fit ​​groove (32) are fixedly connected to both sides of the mounting plate (11). The snap-fit ​​blocks (16) have insertion slots (161) for inserting the connecting protrusion (321).

6. The adjustable fan assembly according to claim 5, characterized in that: The connecting protrusion (321) includes a connecting part (3211) fixedly connected to the bottom wall of the snap-fit ​​groove (32) and a plug (3212) fixedly connected to the end of the connecting part (3211). The diameter of the plug (3212) is greater than the width of the connecting part (3211). The inner wall of the snap-fit ​​groove (161) is provided with an abutment plate (162) for abutting the connecting part (3211). A spring (163) is provided between the abutment plate (162) and the inner wall of the snap-fit ​​groove (161). One end of the spring (163) is fixedly connected to the bottom wall of the abutment plate (162), and the other end is fixedly connected to the inner wall of the snap-fit ​​groove (161).

7. The adjustable fan assembly according to claim 6, characterized in that: The abutment plate (162) has guide surfaces (1621) at both ends.

8. A range hood, characterized in that, The assembly includes a body (4), a separation component (5) disposed inside the body (4), and an adjustable fan assembly as described in any one of claims 1-7. The conveying box (3) and the air box (1) are fixedly connected to the top of the body (4). A purification module (6) is disposed inside the conveying box (3). An air outlet (41) communicating with the conveying box (3) is opened on the top wall of the body (4). The air outlet (41) is located on the side of the purification module (6) away from the air box (1).

9. The range hood according to claim 8, characterized in that: The separation component (5) includes an oil receiving plate (51) and an oil baffle plate (52) disposed above the oil receiving plate (51). Both the oil receiving plate (51) and the oil baffle plate (52) are provided with ventilation holes (53) for gas to pass through. The ventilation holes (53) of the oil receiving plate (51) and the ventilation holes (53) of the oil baffle plate (52) are arranged alternately. A guide plate (54) is fixedly connected to the inner wall of the ventilation hole (53). The guide plate (54) is inclined to the opposite side.

10. The range hood according to claim 8, characterized in that: The mounting plate (11) has a positioning hole (112), and a positioning plate (7) is inserted into the positioning hole (112). The positioning plate (7) includes a plug-in part (71) and a fixing part (72). The fixing part (72) is used to fix it to the body (4). The length of the plug-in part (71) is less than the length of the positioning hole (112).

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