Range hood with rectification and noise reduction structure

Abstract

The utility model relates to the technical field of smoke exhaust ventilators, in particular to a smoke exhaust ventilator with a rectification and noise reduction structure, which comprises a shell, the shell comprises an upper shell, a lower shell, a first air cavity, a second air cavity and a communication port, and the first air cavity, the communication port and the second air cavity are communicated to form a Z-shaped air duct; the fan is arranged on the inner rear side of the upper shell, an air inlet of the fan communicates with the first air cavity, and an air outlet of the fan communicates with the outside; the separator is arranged on the lower shell and is communicated with the second air cavity; and the flow disturbing device comprises a first flow disturbing piece and a second flow disturbing piece, the first flow disturbing piece is arranged on the communicating opening, and the second flow disturbing piece is arranged on the air outlet of the fan. According to the range hood with the rectification and noise reduction structure, the overall noise during operation of the range hood can be greatly reduced, and the use experience of a user is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to range hood technical field especially has the rectifier structure of reducing noise's range hood. BACKGROUND

[0002] With the improvement of people's living standard, people pay more and more attention to the quality of life and home, because people will produce a large amount of oil smoke in the process of cooking, and oil smoke mainly includes gas produced by gas combustion and mixed steam produced by cooking, so there are a large number of harmful substances in oil smoke, and people inhale a large amount of oil smoke, which will cause serious harm to human body, so people will install range hood now, but the noise of the range hood is very large in the process of use, which seriously affects the user's experience.

[0003] Therefore, the prior art still needs to be improved and improved. UTILITY MODEL CONTENT

[0004] In view of the above shortcomings of the prior art, the utility model aims at providing a range hood with rectifier structure of reducing noise to solve the problem of large noise of the existing range hood in use.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] The range hood with rectifier structure of reducing noise comprises:

[0007] A shell comprises an upper shell, a lower shell, a first air cavity, a second air cavity and a communication port, the upper shell is connected with the lower shell, the first air cavity is arranged on the inner front side of the upper shell, the second air cavity is arranged on the inner rear side of the lower shell, the communication port is arranged on the bottom of the first air cavity and communicates with the second air cavity, and the first air cavity, the communication port and the second air cavity communicate to form a Z-shaped air duct.

[0008] A fan is arranged on the inner rear side of the upper shell, the air inlet of the fan communicates with the first air cavity, and the air outlet of the fan communicates with the outside.

[0009] A separator is arranged on the lower shell and communicates with the second air cavity.

[0010] A turbulence device comprises a first turbulence member and a second turbulence member, the first turbulence member is arranged on the communication port, and the second turbulence member is arranged on the air outlet of the fan.

[0011] The range hood with the rectifying and noise reducing structure has the first air cavity and the second air cavity with the cross section shape of right-angled trapezoid, the cross section area of the first air cavity is smaller than that of the second air cavity, the lower bottom side of the first air cavity and the second air cavity is connected, the right-angled end of the first air cavity is arranged adjacent to the acute-angled end of the lower bottom of the second air cavity, the separator is arranged on the inclined side of the second air cavity, and the air inlet of the fan is arranged on the inclined side of the first air cavity.

[0012] The range hood with the rectifying and noise reducing structure has the lower shell including the arc-shaped plate, the back plate, the two side plates, the top plate, the extension piece, the panel and the oil groove, the arc-shaped plate and the back plate are arranged oppositely, the top plate includes the first top plate part, the second top plate part and the inclined plate part, the first top plate part and the second top plate part are arranged oppositely on the front and back sides of the lower shell, the inclined plate part connects the second top plate part and the arc-shaped plate, the two side plates are arranged symmetrically on the two sides of the arc-shaped plate respectively, each side plate includes the third top plate part and the side plate part which are connected to each other, the two ends of the side plate part are connected to the back plate and the arc-shaped plate respectively, the first top plate part, the second top plate part and the third top plate part of the two side plates are connected to each other to form the communication port, the extension piece is arranged on the side of the arc-shaped plate away from the back plate, the panel is connected to the second top plate part, the extension piece and the third top plate part of the two side plates around, the two sides of the oil groove are clamped to the arc-shaped plate and the back plate away from the upper shell, and the separator is arranged on the arc-shaped plate.

[0013] The range hood with the rectifying and noise reducing structure has the upper shell including the support cover, the inner inclined plate and the sealing plate, the support cover is provided with the opening on the side facing the lower shell, the edge of the opening is connected to the lower shell, the two ends of the inner inclined plate and the sealing plate are connected to the two sides in the support cover respectively, one end of the inner inclined plate and the end of the sealing plate away from the lower shell are connected, the other end of the inner inclined plate and the other end of the sealing plate are connected to the edges of the two sides of the communication port respectively, the first air cavity is formed between the inner inclined plate, the sealing plate and the support cover, the air inlet of the fan is arranged on the inner inclined plate, and the air outlet of the fan is arranged on the side of the support cover away from the opening.

[0014] The range hood with the rectifying and noise reducing structure has the first top plate part and the inner inclined plate which are connected integrally, and the end of the sealing plate away from the connection between the sealing plate and the inner inclined plate is connected to the second top plate part.

[0015] The range hood with the rectification and noise reduction structure comprises a sealing plate, a support cover, a fan, a separator and a turbulence device.

[0016] The range hood with the rectification and noise reduction structure comprises a sealing plate, a support cover, a fan, a separator and a turbulence device.

[0017] The range hood with the rectification and noise reduction structure comprises a sealing plate, a support cover, a fan, a separator and a turbulence device.

[0018] The range hood with the rectification and noise reduction structure comprises a sealing plate, a support cover, a fan, a separator and a turbulence device.

[0019] Beneficial effects:

[0020] The range hood with the rectification and noise reduction structure comprises a sealing plate, a support cover, a fan, a separator and a turbulence device. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 A structural schematic view of the range hood is provided for the utility model.

[0022] Figure 2 An explosion view of the range hood is provided for the utility model.

[0023] Figure 3 A sectional view of the range hood is provided for the utility model.

[0024] Figure 4 The explosion view of the lower shell provided by the utility model;

[0025] Figure 5 The explosion view of the upper shell provided by the utility model;

[0026] Fig. 1, outer shell; 11, upper shell; 111, support cover; 1111, inner support plate; 1112, top cover plate; 1113, rear cover plate; 1114, front bulkhead; 112, inner inclined plate; 113, sealing plate; 1131, connecting edge; 1132, boss part; 12, lower shell; 121, arc-shaped plate; 122, back plate; 123, side plate; 1231, third top plate part; 1232, side plate part; 124, top plate; 1241, first top plate part; 1242, second top plate part; 1243, inclined plate part; 125, extension piece; 126, panel; 127, oil groove; 13, first air cavity; 14, second air cavity; 15, communication port; 2, fan; 3, separator; 4, spoiler device; 41, first spoiler; 42, second spoiler. DETAILED DESCRIPTION

[0027] The utility model provides a kind of range hood with rectifier noise reduction structure, to make the purpose, technical scheme and effect of the utility model more clear, definite, the following referring to drawing and taking example to the utility model is further detailed.

[0028] In the description of the utility model, it needs to be understood that the orientation or positional relationship indicated by the terms "top" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and cannot be understood as a limitation on the utility model;In addition, the terms "mounting", "connecting" and the like should be broadly understood, and for ordinary skilled persons in the art, the specific meanings of the above terms in the utility model can be understood according to the specific circumstances.

[0029] As Figures 1-5 shown, the embodiment of the application proposes a range hood with rectifier noise reduction structure, comprising:

[0030] The outer shell 1 includes an upper shell 11, a lower shell 12, a first air cavity 13, a second air cavity 14 and a communication port 15, the upper shell 11 is connected with the lower shell 12, the first air cavity 13 is arranged on the inner front side of the upper shell 11, the second air cavity 14 is arranged on the inner rear side of the lower shell 12, the communication port 15 is arranged on the bottom of the first air cavity 13 and communicates with the second air cavity 14, and the first air cavity 13, the communication port 15 and the second air cavity 14 communicate to form a Z-shaped air duct;

[0031] A fan 2 is arranged on the inner rear side of the upper shell 11, an air inlet of the fan 2 is communicated with the first air cavity 13, and an air outlet of the fan 2 is communicated with the outside;

[0032] A separator 3 is arranged on the lower shell 12 and communicated with the second air cavity 14;

[0033] A flow disturbing device 4 comprises a first flow disturbing piece 41 arranged on the communication port 15 and a second flow disturbing piece 42 arranged on the air outlet of the fan 2.

[0034] The utility model discloses a kind of range hood with rectifying and noise reduction structure, including by upper shell 11, lower shell 12, first air cavity 13, second air cavity 14 and communication port 15 Shell 1, fan 2, separator 3 and the flow disturbing device 4, the flow disturbing device 4 includes first flow disturbing piece 41 and second flow disturbing piece 42, air flow is driven by the fan 2, forms negative pressure area on the separator 3 by the Z-shaped air duct, oil fume enters this range hood from the separator 3, and sequentially passes through second air cavity 14, communication port 15 and first air cavity 13 by fan 2, the Z-shaped air duct formed by second air cavity 14, communication port 15 and first air cavity 13 can effectively disturb air flow, simultaneously, first flow disturbing piece 41 rectifies the air in Z-shaped air duct, second flow disturbing piece 42 rectifies and noise reduction again to the oil fume discharged by fan 2, the range hood disclosed in the application can greatly reduce the overall noise when range hood operates, improve user's use experience.

[0035] The cross-sectional shape of the first air cavity 13 and the second air cavity 14 is all right trapezoid, and the cross-sectional area of the first air cavity 13 is less than that of the second air cavity 14, the lower side of the first air cavity 13 and the second air cavity 14 is connected, the right angle end of the first air cavity 13 is arranged adjacent to the acute angle end of the lower bottom of the second air cavity 14, the separator 3 is arranged on the hypotenuse of the second air cavity 14, and the air inlet of the fan 2 is arranged on the hypotenuse of the first air cavity 13, since the separator 3 is arranged on the hypotenuse of the second air cavity 14, the oil fume mixed air entering the range hood has an angle with other surfaces in the second air cavity 14, which can effectively disturb the air flow, part of the air collides back to one side of the separator 3, reduces the vibration noise generated between the air and the structure, and the communication port 15 is located on the longer bottom side of the second air cavity 14 and the first air cavity 13, which plays a certain guiding role, and the air outlet of the fan 2 is arranged on the hypotenuse of the first air cavity 13, which ensures the maximum contact area with the air in the first air cavity 13 and improves the exhaust effect.

[0036] The lower shell 12 comprises an arc-shaped plate 121, a back plate 122, two side plates 123, a top plate 124, an extension 125, a face plate 126 and an oil groove 127, the arc-shaped plate 121 and the back plate 122 are oppositely arranged, the top plate 124 comprises a first top plate part 1241, a second top plate part 1242 and an inclined plate part 1243, the first top plate part 1241 and the second top plate part 1242 are oppositely arranged on the front and back sides of the lower shell 12, the inclined plate part 1243 connects the second top plate part 1242 and the arc-shaped plate 121, two side plates 123 are symmetrically arranged on the two sides of the arc-shaped plate 121 respectively, each side plate 123 comprises a third top plate part 1231 and a side plate part 1232 which are connected to each other, the two ends of the side plate part 1232 are connected with the back plate 122 and the arc-shaped plate 121 respectively, the first top plate part 1241, the second top plate part 1242 and the third top plate part 1231 of the two side plates 123 are connected to each other to form the communication port 15, the extension 125 is arranged on the side of the arc-shaped plate 121 away from the back plate 122, the periphery of the face plate 126 is connected with the second top plate part 1242, the extension 125 and the third top plate part 1231 of the two side plates 123 respectively, the two sides of the oil groove 127 are clamped with the arc-shaped plate 121 and the back plate 122 away from the upper shell 11, the separator 3 is arranged on the arc-shaped plate 121, the arc-shaped plate 121, the back plate 122, the two side plates 123 and the top plate 124 form the second air cavity 14, the extension 125 and the arc-shaped plate 121 form a cavity which is beneficial to form a negative pressure area at the air inlet end of the separator 3, and the extension 125, the second top plate part 1242 and the third top plate part 1231 of the two side plates 123 form a cavity for placing control elements.

[0037] The upper shell 11 comprises a supporting cover 111, an inner inclined plate 112 and a sealing plate 113, the supporting cover 111 is provided with an opening 114 on one side facing the lower shell 12, the edge of the opening 114 is connected with the lower shell 12, the two ends of the inner inclined plate 112 and the sealing plate 113 are connected with the two sides in the supporting cover 111 respectively, one end of the inner inclined plate 112 and one end of the sealing plate 113 away from the lower shell 12 are connected, the other end of the inner inclined plate 112 and the other end of the sealing plate 113 are connected with the edges on both sides of the communication port 15 respectively, the first air cavity 13 is formed between the inner inclined plate 112, the sealing plate 113 and the supporting cover 111, the air inlet of the fan 2 is arranged on the inner inclined plate 112, the air outlet of the fan 2 is arranged on the side of the supporting cover 111 away from the opening 114, the air in the communication port 15 is extracted by the fan 2 on the inner inclined plate 112, the side where the inner inclined plate 112 is located is one face with the largest area in the first air cavity 13, that is, the fan 2 arranged on one side of the inner inclined plate 112 can extract the air in the first air cavity 13 with a larger contact area, thereby improving the exhaust effect.

[0038] The first top plate part 1241 and the inner inclined plate 112 are in an integrated connection structure, one end of the sealing plate 113 away from the connection between the sealing plate 113 and the inner inclined plate 112 is connected with the second top plate part 1242, on one hand, the number of components is reduced, two components do not need to be produced independently and assembled, thereby reducing the production and assembly steps; on the other hand, the stability and sealing performance are better, and the situation that oil fume leaks outside due to insufficient sealing performance at the connection position will not occur.

[0039] The sealing plate 113 comprises a connecting edge 1131 and a boss part 1132, the boss part 1132 protrudes towards the side away from the inner inclined plate 112, the connecting edge 1131 extends along the edge of the boss part 1132 and bends outward, compared with the flat sealing plate, the boss part 1132 can change the air direction through the inclined surface, form a certain turbulence effect in the first air cavity 13, and avoid the vibration of the plate caused by the direct collision of the air, thereby playing a certain noise reduction role.

[0040] The support cover 111 comprises two inner support plates 1111, a top cover plate 1112, a rear cover plate 1113 and a front wall plate 1114, the two inner support plates 1111 are oppositely arranged on the two sides of the inner inclined plate 112, the top cover plate 1112 is arranged on the two inner support plates 1111, the front wall plate 1114 is clamped on the outer sides of the two inner support plates 1111, the rear cover plate 1113 is arranged on the side of the two inner support plates 1111 away from the front wall plate 1114, the two sides of the rear cover plate 1113 are connected with the two sides of the front wall plate 1114 respectively, the air outlet of the fan 2 is arranged on the top cover plate 1112, the front wall plate 1114 and the rear cover plate 1113 further reinforce the two inner support plates 1111, and the stability of the whole upper shell 11 is improved.

[0041] The first spoiler 41 comprises a first honeycomb plate, and the second spoiler 42 comprises a second honeycomb plate, the aperture of the first honeycomb plate is smaller than the aperture of the second honeycomb plate, the honeycomb plates are used for rectifying and reducing the vibration of air, so that the noise reduction effect is achieved.

[0042] It can be understood that, for those skilled in the art, equivalent replacement or change can be made according to the technical scheme and the utility model concept of the utility model, and all these changes or replacements shall belong to the protection scope of the utility model.

Claims

1. A range hood having a rectifying noise reduction structure, characterized by, The utility model relates to a kind of air supply device, including: Housing (1), the housing (1) includes upper shell (11), lower shell (12), first air cavity (13), second air cavity (14) and communication port (15), the upper shell (11) is connected with the lower shell (12), the first air cavity (13) is located in the inner front side of the upper shell (11), the second air cavity (14) is located in the inner rear side of the lower shell (12), the communication port (15) is located at the bottom of the first air cavity (13) and is communicated with the second air cavity (14), the first air cavity (13), the communication port (15) and the second air cavity (14) are communicated to form Z-shaped air duct; Fan (2), the fan (2) is located in the inner rear side of the upper shell (11), the air inlet of the fan (2) is communicated with the first air cavity (13), and the air outlet of the fan (2) is communicated with the outside world; Separator (3), the separator (3) is located on the lower shell (12) and is communicated with the second air cavity (14); Turbulence device (4), the turbulence device (4) includes first turbulence piece (41) and second turbulence piece (42), the first turbulence piece (41) is located on the communication port (15), and the second turbulence piece (42) is located on the air outlet of the fan (2).

2. The range hood having a rectifying noise reduction structure according to claim 1, characterized in that, The cross-sectional shape of the first air cavity (13) and the second air cavity (14) is all right trapezoid, and the cross-sectional area of the first air cavity (13) is less than the cross-sectional area of the second air cavity (14), the lower bottom side of the first air cavity (13) and the second air cavity (14) is connected with each other, the right angle end of the first air cavity (13) is adjacent to the acute angle end of the lower bottom of the second air cavity (14), the separator (3) is located on the hypotenuse of the second air cavity (14), and the air inlet of the fan (2) is located on the hypotenuse of the first air cavity (13).

3. The range hood having a rectifying noise reduction structure according to claim 2, characterized in that, The lower shell (12) comprises an arc-shaped plate (121), a back plate (122), two side plates (123), a top plate (124), an extension piece (125), a face plate (126) and an oil groove (127), the arc-shaped plate (121) and the back plate (122) are oppositely arranged, the top plate (124) comprises a first top plate part (1241), a second top plate part (1242) and an inclined plate part (1243), the first top plate part (1241) and the second top plate part (1242) are oppositely arranged on the front and back sides of the lower shell (12), the inclined plate part (1243) connects the second top plate part (1242) and the arc-shaped plate (121), two side plates (123) are symmetrically arranged on the two sides of the arc-shaped plate (121) respectively, each side plate (123) comprises a third top plate part (1231) and a side plate part (1232) which are connected to each other, the two ends of the side plate part (1232) are connected with the back plate (122) and the arc-shaped plate (121) respectively, the first top plate part (1241), the second top plate part (1242) and the third top plate part (1231) of the two side plates (123) are connected to each other to form the communication port (15), the extension piece (125) is arranged on the side of the arc-shaped plate (121) away from the back plate (122), the periphery of the face plate (126) is connected with the second top plate part (1242), the extension piece (125) and the third top plate part (1231) of the two side plates (123) respectively, the two sides of the oil groove (127) are clamped with the sides of the arc-shaped plate (121) and the back plate (122) away from the upper shell (11), and the separator (3) is arranged on the arc-shaped plate (121).

4. The range hood having a rectifying noise reduction structure according to claim 3, characterized in that, The upper shell (11) comprises a support cover (111), an inner inclined plate (112) and a sealing plate (113), the support cover (111) is provided with an opening (114) on the side facing the lower shell (12), the edge of the opening (114) is connected with the lower shell (12), the two ends of the inner inclined plate (112) and the sealing plate (113) are connected with the two sides in the support cover (111) respectively, one end of the inner inclined plate (112) and one end of the sealing plate (113) away from the lower shell (12) are connected, the other end of the inner inclined plate (112) and the other end of the sealing plate (113) are connected with the edges of the two sides of the communication port (15) respectively, the first air cavity (13) is formed between the inner inclined plate (112), the sealing plate (113) and the support cover (111), the air inlet of the fan (2) is arranged on the inner inclined plate (112), and the air outlet of the fan (2) is arranged on the side of the support cover (111) away from the opening (114).

5. The range hood having a rectifying noise reduction structure according to claim 4, characterized in that, The first top plate part (1241) and the inner inclined plate (112) are integrally connected, and one end of the sealing plate (113) away from the connection between the sealing plate (113) and the inner inclined plate (112) is connected with the second top plate part (1242).

6. The range hood having a rectifying noise reduction structure according to claim 4, characterized in that, The sealing plate (113) comprises a connecting edge (1131) and a boss part (1132), the boss part (1132) is protruded towards the side away from the inner inclined plate (112), and the connecting edge (1131) is bent and extended towards the outside along the edge of the boss part (1132).

7. The range hood having a rectifying noise reduction structure according to claim 4, characterized in that, The support cover (111) comprises two inner support plates (1111), a top cover plate (1112), a rear cover plate (1113) and a front wall plate (1114), the two inner support plates (1111) are oppositely arranged on the two sides of the inner inclined plate (112), the top cover plate (1112) is arranged on the two inner support plates (1111), the front wall plate (1114) is clamped on the outer sides of the two inner support plates (1111), the rear cover plate (1113) is arranged on the side of the two inner support plates (1111) away from the front wall plate (1114), and the two sides of the rear cover plate (1113) are connected with the two sides of the front wall plate (1114), respectively.

8. The range hood having a rectifying noise reduction structure according to claim 1, characterized in that, The first turbulence member (41) comprises a first honeycomb plate, and the second turbulence member (42) comprises a second honeycomb plate.

9. The range hood having a rectifying noise reduction structure according to claim 8, characterized in that, The aperture of the first honeycomb plate is smaller than the aperture of the second honeycomb plate. The aperture of the first honeycomb plate is smaller than the aperture of the second honeycomb plate.

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