Air outlet assembly and range hood comprising same

Abstract

The utility model provides an air outlet assembly and a range hood comprising the air outlet assembly, the air outlet assembly comprises an air outlet cover and an adapter, the adapter comprises a first adapter part, and the first adapter part is connected with the air outlet end of the air outlet cover; first grooves connected end to end are formed in the inner wall of the first switching part, second grooves connected end to end are formed in the outer wall of the air outlet end, and the first grooves and the second grooves are in butt joint to form a mounting part; the air outlet assembly further comprises a compressible sealing connecting piece, the sealing connecting piece is located in the mounting part and comprises a first connecting part and a second connecting part fixedly connected with the first connecting part, and the first connecting part and each face of the first groove are each provided with at least one contact part. Each surface of the second connecting part and each surface of the second groove are respectively provided with at least one contact part, so that the air outlet end and the first switching part are connected and fixed through the sealing connecting piece, and sealing is formed at the fixed part.

Description

Technical Field

[0001] The utility model relates to an air outlet assembly and a range hood including the same. Background Art

[0002] With the continuous progress of fan and motor technologies, the range hood industry has continuously introduced range hoods with ultra-thin designs. The air directly enters the fan inlet after passing through the oil net, and air intake is required around the entire circumference of the fan inlet. Due to the limitation of the overall dimensions of the unit (for example, the overall thickness does not exceed 200 mm, and the height h of the smoke collecting cavity does not exceed 420 mm), after the unit becomes thinner, the requirements for the connection between the air outlet assembly and the unit are getting higher and higher. The existing air outlet assemblies of range hoods mainly consist of an air outlet cover, an adapter, and an exhaust pipe. The main function of the adapter is to convert a diameter of 180 mm into a diameter of 160 mm. When the existing air outlet assembly is installed, the connection between the air outlet cover and the adapter is achieved by an interference fit through an inlay method, and then a sealing tape is pasted on the surfaces of the two parts to achieve sealing. This connection method will cause the adapter to fall off easily after the range hood is started due to the pressure between the air outlet cover and the adapter, resulting in leakage of oil fumes and odors; when using tape for sealing, on the one hand, after the tape ages and falls off, the connection between the connecting part and the air outlet cover is likely to fall off, leading to leakage of oil fumes and odors, and on the other hand, the operation is inconvenient. After the range hood is installed on the wall, the close contact between the air outlet system and the wall results in a small operating space for sticking the tape, and it is not easy to wind the tape; under the high-speed and high-backpressure working conditions of the range hood, the vibration of the whole unit is easily transmitted to the smoke pipe through the adapter, resulting in the smoke pipe vibrating and falling off. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is to overcome the defects of the prior art that the connection between the air outlet cover and the adapter is not firm and prone to falling off, leakage of oil fumes and odors, and vibration of the whole unit, and to provide an air outlet assembly and a range hood including the same.

[0004] The utility model solves the above technical problem through the following technical solutions: The utility model provides an air outlet assembly, which includes: an air outlet cover and an adapter, the adapter includes a first adapter part, and the first adapter part is connected to the air outlet end of the air outlet cover; a first groove connected end to end is arranged on the inner wall of the first adapter part, and a second groove connected end to end is arranged along the outer wall of the air outlet end, and the first groove and the second groove are butted to form an installation part;

[0005] The air outlet assembly further includes a compressible sealing connector, the sealing connector is located in the installation part, the sealing connector includes a first connection part and a second connection part fixedly connected to the first connection part, the first connection part has at least one contact part with each surface of the first groove, and the second connection part has at least one contact part with each surface of the second groove.

[0006] In this solution, a first groove is formed on the inner wall of the adapter, and a second groove is formed on the outer wall of the air outlet cover, so that the adapter is sleeved outside the air outlet cover, and the first groove is docked with the second groove to form an installation part. A compressible sealing connector is arranged in the installation part, so that the sealing connector has a certain deformation ability and can be extruded into a compressed state when connecting the adapter and the air outlet cover for fixation to prevent loosening. Each surface of the first connecting part and the first groove has at least one contact part, and each surface of the second connecting part and the second groove has at least one contact part, so that the air outlet end and the first adapter part are connected and fixed through the sealing connector, and a seal is formed at the fixing position.

[0007] Preferably, both the first connecting part and the second connecting part are continuous and closed structures, and the first connecting part and the second connecting part are sleeved and connected inside and outside.

[0008] In this solution, the first connecting part and the second connecting part are continuous and sealed structures, so that when the air outlet end and the first adapter part are docked, an installation groove is formed in the entire circumferential direction, and the sealing connector is located in the entire circumferential direction, which can improve the connection stability and sealing performance.

[0009] Preferably, the cross-sectional shapes of both the first connecting part and the second connecting part are the same and are both elliptical.

[0010] In this solution, the cross-sectional shapes of both the first connecting part and the second connecting part are the same and are both elliptical, so that the sealing connector is in a double-elliptical structure, which is simple to manufacture and has a good sealing effect when contacting the first groove and the second groove respectively.

[0011] Preferably, the cross-sectional shapes of both the first connecting part and the second connecting part are the same and are both rhombic.

[0012] In this solution, the cross-sectional shapes of both the first connecting part and the second connecting part are the same and are both rhombic, so that the sealing connector is in a double-rhombic structure, which is simple in structure, saves materials, and has a more stable connection.

[0013] Preferably, each surface of the first connecting part and the first groove has one contact part, and each surface of the second connecting part and the second groove has one contact part, and the contact part is a line contact.

[0014] In this solution, each surface of the first connecting portion and the first groove has a contact portion, and each surface of the second connecting portion and the second groove has a contact portion, which can achieve stable and reliable connection and sealing. Moreover, the contact portion is a line contact, which can simplify the previous surface contact into a line contact, with better sealing performance. In addition, it can increase the radial force and axial force of the flexible engagement between the air outlet hood and the adapter, realizing the risk reduction of the adapter falling off without using tape.

[0015] Preferably, the number of the first grooves is one, two or more, and the number of the second grooves and the number of the sealing connectors both correspond to the number of the first grooves.

[0016] In this solution, the number of the first grooves can be set to one, two or more according to the connection requirements, and can be adjusted according to the actual connection to ensure the reliability of the connection.

[0017] Preferably, the distance between the two ends of the first connecting portion or the second connecting portion in the up-down direction is between 5 mm and 8 mm, the distance between the two ends in the left-right direction is between 4 mm and 6 mm, and the center distance between the first connecting portion and the second connecting portion is between 3 mm and 5 mm.

[0018] In this solution, the dimensions of the first connecting portion and the second connecting portion are further defined, and the dimensions in each direction are controlled within a certain range to ensure the stability and reliability of the connection using the sealing connector.

[0019] Preferably, the contour of the air outlet end in the circumferential direction is circular, the contour of the first adapter portion in the circumferential direction is circular, and the contour of the sealing connector in the circumferential direction is also circular;

[0020] Or, the contour of the air outlet end in the circumferential direction is square, the contour of the first adapter portion in the circumferential direction is square, and the contour of the sealing connector in the circumferential direction is also square.

[0021] In this solution, the contour of the air outlet end in the circumferential direction is set to be circular, and the contour of the first adapter portion in the circumferential direction is circular, and the contour of the sealing connector in the circumferential direction is also circular, so as to realize the connection and sealing between the circular air outlet hood and the circular adapter;

[0022] The contour of the air outlet end in the circumferential direction is set to be square, and the contour of the first adapter portion in the circumferential direction is square, and the contour of the sealing connector in the circumferential direction is also square, so as to realize the connection and sealing between the square air outlet hood and the square adapter.

[0023] Preferably, the air outlet assembly further includes a sealing gasket, and the sealing gasket is arranged between the air outlet end and the first adapter portion.

[0024] In this solution, a gasket is additionally provided between the air outlet end and the first adapter part, which can further improve the sealing performance between the air outlet hood and the adapter, reduce the leakage risk, and further increase the friction between the air outlet hood and the adapter, thereby enhancing the connection stability.

[0025] The present utility model also provides a range hood, which includes the air outlet assembly as described above.

[0026] The positive and progressive effects of the present utility model are as follows: The present utility model provides an air outlet assembly. By providing a first groove connected end to end on the inner wall of the adapter and a second groove connected end to end on the outer wall of the air outlet hood, the adapter is sleeved outside the air outlet hood, and the first groove and the second groove are docked to form an installation part. A seal connecting member capable of being compressed is provided in the installation part, so that the seal connecting member has a certain deformation ability. When connecting the adapter and the air outlet hood, it can be squeezed into a compressed state for fixation to prevent loosening. Each surface of the first connecting part and the first groove has at least one contact part, and each surface of the second connecting part and the second groove has at least one contact part, so as to connect and fix the air outlet end and the first adapter part through the seal connecting member and form a seal at the fixation point. Description of the Drawings

[0027] Figure 1 It is a schematic structural diagram of an air outlet assembly according to an embodiment of the present utility model.

[0028] Figure 2 It is a connection schematic diagram of an air outlet hood, a seal connecting member and an adapter according to an embodiment of the present utility model.

[0029] Figure 3 It is a schematic structural diagram of an air outlet hood according to an embodiment of the present utility model.

[0030] Figure 4 It is a cross-sectional view of an air outlet hood according to an embodiment of the present utility model.

[0031] Figure 5 It is a schematic structural diagram of an adapter according to an embodiment of the present utility model.

[0032] Figure 6 It is a cross-sectional view of an adapter according to an embodiment of the present utility model.

[0033] Figure 7 It is a schematic structural diagram of a seal connecting member according to an embodiment of the present utility model.

[0034] Figure 8 It is a cross-sectional view of a seal connecting member according to an embodiment of the present utility model.

[0035] Figure 9Schematic diagram of the structure of a range hood according to an embodiment of the present invention.

[0036] Description of reference numerals

[0037] Air outlet assembly 1

[0038] Air outlet hood 2

[0039] Adapter 3

[0040] First adapter part 4

[0041] Air outlet end 5

[0042] First groove 6

[0043] Second groove 7

[0044] Sealing connector 8

[0045] Contact part 9

[0046] Second connecting part 10

[0047] First connecting part 11

[0048] Second adapter part 12

[0049] First horizontal rib 13

[0050] Second horizontal rib 14

[0051] Range hood 15 Detailed implementation manners

[0052] The following is a preferred embodiment, and the present invention will be described more clearly and completely in conjunction with the accompanying drawings.

[0053] The following is a preferred embodiment, and the present invention will be described more clearly and completely in conjunction with the accompanying drawings.

[0054] The technical problem to be solved by the present invention is to overcome the defects of the prior art that the connection between the air outlet hood 2 and the adapter 3 is not firm and is prone to falling off, leakage of oil fumes and odors, and shaking of the whole machine, and to provide an air outlet assembly 1 and a range hood 15 including the same.

[0055] The present invention solves the above technical problems through the following technical solutions: The present invention provides an air outlet assembly 1, as Figures 1-9As shown, the air outlet assembly 1 includes: an air outlet cover 2, an adapter 3 and a sealing connector 8, the adapter 3 includes a first adapter portion 4, and the first adapter portion 4 is connected to the air outlet end 5 of the air outlet cover 2; the inner wall of the first adapter portion 4 is provided with first grooves 6 connected end to end, and the outer wall of the air outlet end 5 is provided with second grooves 7 connected end to end, and the first groove 6 and the second groove 7 are connected end to end to form a mounting portion; the sealing connector 8 can be compressed, and the sealing connector 8 is located in the mounting portion, and the sealing connector 8 includes a first connecting portion 11 and a second connecting portion 10 fixedly connected to the first connecting portion 11, the first connecting portion 11 and each surface of the first groove 6 respectively have at least one contact portion 9, and the second connecting portion 10 and each surface of the second groove 7 respectively have at least one contact portion 9. A first groove 6 is provided on the inner wall of the adapter 3, and a second groove 7 is provided on the outer wall of the air outlet hood 2, so that the adapter 3 is sleeved on the outer side of the air outlet hood 2, so that the first groove 6 and the second groove 7 are connected to form a mounting portion, and a compressible sealing connector 8 is provided on the mounting portion, so that the sealing connector 8 has a certain deformation ability, and can be squeezed into a compressed state to be fixed when connecting the adapter 3 and the air outlet hood 2 to prevent loosening. The first connecting portion 11 and each surface of the first groove 6 respectively have at least one contact portion 9, and the second connecting portion 10 and each surface of the second groove 7 respectively have at least one contact portion 9, so that the air outlet end 5 and the first adapter 4 are connected and fixed through the sealing connector 8, and a seal is formed at the fixed position.

[0056] The sealing connector 8 can be compressed to have a certain rigidity, and the material selection is determined by the rigidity K. The rigidity of the vibration reduction structure is calculated according to the vibration isolation principle, and the calculation is as follows:

[0057] (1) f1 (excitation frequency) / f0 (natural frequency of the vibration isolation system) = ε, when ε = 2.5 to 4.5, the vibration isolation structure has a vibration isolation effect;

[0058] (2) The excitation frequency generated by the aerodynamic load of the fan under the high speed and high back pressure conditions of the range hood is f1 = n (speed) / 60, n = 1200-1600 rpm;

[0059] (3) According to the first-order system vibration isolation principle, the natural frequency of the system Where m = 0.98kg, k-stiffness of vibration-damping structural material;

[0060] Combining (1) to (3), we can get: ε=2.5~4.5,n=1200~1600rpm,m=0.98kg,the material is selected according to the calculated stiffness K; so that the sealing connector 8 can be compressed while maintaining a certain stiffness, connecting the adapter 3 and the air outlet cover 2, forming a seal, and reducing vibration and vibration transmission.

[0061] likeFigures 4-5 As shown, a first horizontal rib 13 is provided on the inner peripheral wall of the first adapter portion 4. The first horizontal rib 13 is continuously provided around the inner peripheral wall of the first adapter portion 4, and a plurality of first horizontal ribs 13 are provided at intervals along the axial direction of the first adapter portion 4. A first groove 6 is formed between two adjacent first horizontal ribs 13; a second horizontal rib 14 is provided on the outer periphery of the air outlet end 5. The second horizontal rib 14 is continuously provided around the outer periphery of the air outlet end 5, and a plurality of second horizontal ribs 14 are provided at intervals along the axial direction of the air outlet end 5. A second groove 7 is formed between two adjacent second horizontal ribs 14. It can be seen from Figure 4 that the two first horizontal ribs 13 and the inner peripheral wall of the first adapter portion 4 therebetween form three groove surfaces of the first groove 6, and the two second horizontal ribs 14 and the outer peripheral wall of the air outlet end 5 therebetween form three groove surfaces of the second groove 7.

[0062] Both the first connecting portion 11 and the second connecting portion 10 are continuous and closed structures, and the first connecting portion 11 and the second connecting portion 10 are sleeved and connected inside and outside. The first connecting portion 11 and the second connecting portion 10 are continuous and sealed structures, so that when the air outlet end and the first adapter portion 4 are butted, an installation groove is formed in the entire circumferential direction. The sealing connector 8 is located in the entire circumferential direction, and the connection stability and sealing performance can be improved.

[0063] As Figure 8 shown, the cross-sectional shape of the first connecting portion 11 is the same as that of the second connecting portion 10, both being elliptical. The cross-sectional shape of the first connecting portion 11 is the same as that of the second connecting portion 10, both being elliptical, so that the sealing connector 8 has a double-elliptical structure, which is simple to manufacture and has a good sealing effect when contacting the first groove 6 and the second groove 7 respectively. Of course, in other embodiments, the cross-sectional shapes of the first connecting portion 11 and the second connecting portion 10 can also be set to other shapes, such as both being rhombus-shaped, so that the sealing connector 8 has a double-rhombus structure, which is simple in structure, saves materials, and has a more stable connection.

[0064] As Figure 2 shown, each surface of the first connecting portion 11 and the first groove 6 respectively has a contact portion 9, and each surface of the second connecting portion 10 and the second groove 7 respectively has a contact portion 9. The contact portion 9 is a line contact, which can achieve stable and reliable connection and sealing. Moreover, since the contact portion 9 is a line contact, the previous surface contact can be simplified to line contact, with better sealing performance, and it can also increase the radial force and axial force of the flexible engagement between the air outlet cover 2 and the adapter 3, realizing the risk reduction of the adapter 3 falling off without using tape.

[0065] As Figures 2-6As shown, the number of the first grooves 6 is two, and the number of the second grooves 7 is also two. Of course, in other embodiments, the number of the first grooves 6 can be adjusted according to the actual connection, and can also be set to one or more, as long as the connection reliability is ensured. The number of the second grooves 7 and the number of the sealing connectors 8 both correspond to the number of the first grooves 6.

[0066] The distance between the two ends of the first connecting portion 11 or the second connecting portion 10 in the up-down direction is between 5 mm and 8 mm, the distance between the two ends in the left-right direction is between 4 mm and 6 mm, and the center distance between the first connecting portion 11 and the second connecting portion 10 is between 3 mm and 5 mm. The distance between two adjacent sealing connectors 8 is between 10 mm and 18 mm. Preferably, as Figure 2 shown, the distance between the two ends of the first connecting portion 11 or the second connecting portion 10 in the up-down direction is 8 mm, the distance between the two ends in the left-right direction is 4.5 mm, the center distance between the first connecting portion 11 and the second connecting portion 10 is 3.5 mm, the distance between two adjacent sealing connectors 8 is 16 mm, and the distance for the sealing connector 8 to connect the gap formed between the first groove 6 and the second groove 7 is 1 mm. Controlling the dimensions of each part of the first connecting portion 11 and the second connecting portion 10 within a certain range ensures the stability and reliability of the connection using the sealing connector 8.

[0067] As Figures 1-7 shown, in this embodiment, the circumferential profile of the air outlet end 5 is circular, the circumferential profile of the first adapter portion 4 is circular, and the circumferential profile of the sealing connector 8 is also circular, enabling the connection and sealing between the circular air outlet cover 2 and the circular adapter 3. Of course, in other embodiments, the circumferential profile of the air outlet end 5 is set to be square, and the circumferential profiles of the first adapter portion 4 and the sealing connector 8 are also square, enabling the connection and sealing between the square air outlet cover 2 and the square adapter 3.

[0068] As Figure 2 shown, the air outlet assembly further includes a sealing gasket, which is arranged between the air outlet end and the first adapter portion 4. An additional sealing gasket (not shown in Figure 2 ) is also arranged between the air outlet end 5 and the first adapter portion 4, which can further improve the sealing performance between the air outlet cover 2 and the adapter 3, reduce the leakage risk, and further increase the friction force between the air outlet cover 2 and the adapter 3, thereby enhancing the connection stability.

[0069] When the air outlet component 1 in this embodiment is installed, first install the second installation part of the sealing connector 8 in the second groove 7 on the surface of the air outlet end 5, and then assemble the first groove 6 of the adapter 3 on the first installation part of the sealing connector 8. The sealing connector 8 has the ability to deform and can be compressed, so that the sealing connector 8 is fastened between the first groove 6 and the second groove 7 to connect and seal the adapter 3 and the air outlet cover 2.

[0070] As Figure 9 shown, the present invention also provides a range hood 15, which includes the air outlet component as described above. The first adapter part 4 of the adapter 3 is connected to the air outlet end 5 of the air outlet cover 2, and the second adapter part 12 of the adapter 3 is connected to the smoke exhaust pipe ( Figure 9 not shown in the figure).

[0071] Although the specific embodiments of the present invention have been described above, those skilled in the art should understand that this is only an example. The protection scope of the present invention is defined by the appended claims. Without departing from the principle and essence of the present invention, those skilled in the art can make various changes or modifications to these embodiments, but these changes and modifications all fall within the protection scope of the present invention.

Claims

1. An air outlet assembly, comprising: An air outlet cover and an adapter, wherein the adapter comprises a first adapter portion, and the first adapter portion is connected to the air outlet end of the air outlet cover; characterized in that the inner wall of the first adapter portion is provided with first grooves connected end to end, and the outer wall of the air outlet end is provided with second grooves connected end to end, and the first groove and the second groove are connected to form a mounting portion; The air outlet assembly also includes a compressible sealing connector, which is located in the installation portion. The sealing connector includes a first connecting portion and a second connecting portion fixedly connected to the first connecting portion, the first connecting portion and each surface of the first groove respectively have at least one contact portion, and the second connecting portion and each surface of the second groove respectively have at least one contact portion.

2. The air outlet assembly according to claim 1, characterized in that: The first connection part and the second connection part are both continuous and closed structures, and the first connection part and the second connection part are connected in an inner-outer overlapping manner.

3. The air outlet assembly according to claim 2, characterized in that: The cross-sectional shape of the first connection portion and the cross-sectional shape of the second connection portion are the same as each other and are both elliptical.

4. The air outlet assembly according to claim 2, characterized in that: The cross-sectional shape of the first connection portion and the cross-sectional shape of the second connection portion are the same, both being rhombus.

5. The air outlet assembly according to claim 3 or 4, characterized in that: Each surface of the first connecting portion and the first groove has a contact portion, and each surface of the second connecting portion and the second groove has a contact portion, and the contact portions are line contacts.

6. The air outlet assembly according to claim 5, characterized in that: The number of the first grooves is one or two or more, and the number of the second grooves and the number of the sealing connectors correspond to the number of the first grooves.

7. The air outlet assembly according to claim 5, characterized in that: The distance between the two ends of the first connection part or the second connection part in the up-down direction is between 5mm and 8mm, the distance between the two ends in the left-right direction is between 4mm and 6mm, and the center distance between the first connection part and the second connection part is between 3mm and 5mm.

8. The air outlet assembly according to claim 1, characterized in that: The air outlet end has a circular contour in the circumferential direction, the first adapter portion has a circular contour in the circumferential direction, and the sealing connector also has a circular contour in the circumferential direction; Alternatively, the air outlet end has a square outline in the circumferential direction, the first adapter portion has a square outline in the circumferential direction, and the sealing connector also has a square outline in the circumferential direction.

9. The air outlet assembly according to claim 1, characterized in that: The air outlet assembly further includes a sealing gasket, which is disposed between the air outlet end and the first adapter portion.

10. A range hood, characterized in that: It comprises an air outlet assembly as described in any one of claims 1 to 9.

Images