Air inlet panel, exhaust fume collecting hood comprising air inlet panel and range hood comprising air inlet panel

Abstract

The utility model provides an air inlet panel and an exhaust fume collecting hood and a range hood comprising the air inlet panel, the air inlet panel comprises a noise reduction part, the noise reduction part is arranged in the middle area of the air inlet panel, and the noise reduction part is flat and is arranged perpendicular to the air inlet direction of the air inlet panel; the air inlet is annularly formed in the peripheral side of the noise reduction part, and the air inlet is formed close to the edge of the air inlet panel; and the connecting piece is arranged in the air inlet, one end of the connecting piece is connected with the side part of the noise reduction part, and the other end of the connecting piece is connected with the inner wall of the air inlet. By arranging the noise reduction part and annularly forming the air inlet in the peripheral side of the noise reduction part, the arrangement position of a traditional air inlet is changed, and the suction force distribution range is expanded, so that the oil fume absorption effect of the air inlet on the edge of the air inlet panel can be correspondingly improved, and the noise reduction part can absorb noise; and the noise is prevented from radiating outwards from the air inlet panel to influence the use experience of a user.

Description

Technical Field

[0001] This utility model relates to the field of smoke collection hood technology, and in particular to an air inlet panel and a smoke collection hood and range hood containing the same. Background Technology

[0002] Range hoods have become an indispensable kitchen appliance in modern homes. As people's quality of life improves, consumers are placing increasingly higher demands on the smoke extraction effect and low noise of range hoods.

[0003] Grille-type air inlets are widely used in current range hoods due to their simple structure, low air intake resistance, and high practicality. However, grille-type air inlets have openings evenly distributed throughout the air inlet panel, resulting in weaker ability to guide suction distribution at the air inlet. The grille structure is also highly permeable, offering limited shielding against noise radiation from the range hood's internal fan. Furthermore, the lack of space for attaching sound-absorbing components reduces the possibility of further improving the noise reduction capabilities of the air inlet structure. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the defects of weak air inlet suction and noise radiation in the prior art, and to provide an air inlet panel and a smoke collection hood and range hood containing it.

[0005] The present invention solves the above-mentioned technical problems through the following technical solution:

[0006] An air intake panel, the air intake panel comprising:

[0007] A noise reduction unit is disposed in the middle area of ​​the air inlet panel. The noise reduction unit is flat and is arranged perpendicular to the air inlet direction of the air inlet panel.

[0008] An air inlet is arranged around the outer periphery of the noise reduction part and is located near the edge of the air inlet panel.

[0009] A connector is disposed inside the air inlet, one end of which is connected to the side of the noise reduction part, and the other end of which is connected to the inner wall of the air inlet.

[0010] In this solution, a noise reduction unit is incorporated, with air inlets circling its outer periphery. This alters the traditional air inlet placement, expanding the suction distribution range and improving the absorption of fumes from the edges of the air intake panel. The change in inlet position also reduces noise during fume absorption. Furthermore, the noise reduction unit itself absorbs noise, preventing it from radiating outwards from the air intake panel and affecting the user experience. The noise reduction unit is positioned in the center of the air intake panel via a connector to support it and effectively reduce noise radiation, particularly in the central area where noise radiation is higher.

[0011] Preferably, the noise reduction part includes a noise reduction housing and sound-absorbing cotton. The side wall of the noise reduction housing and the surface facing the smoke hood are provided with a plurality of noise reduction holes, and the bottom of the noise reduction holes is filled with the sound-absorbing cotton.

[0012] In this solution, the above settings are used to achieve effective noise reduction.

[0013] Preferably, the length of the air inlet panel is L1, and the length of the noise reduction housing is L2, wherein 0.8L1≤L2≤0.95L1.

[0014] In this solution, the above-mentioned settings are used to reserve an air inlet along the length direction to ensure the air intake volume.

[0015] Preferably, the width of the air inlet panel is B1, and the width of the noise reduction housing is B2, where 0.35B1≤B2≤0.7B1.

[0016] In this solution, the above settings are used to reserve an air inlet along the width direction to ensure the air intake volume.

[0017] Preferably, along the length direction, the distance between the first end of the noise reduction housing and the inner wall of the air inlet is L3, and the distance between the second end of the noise reduction housing and the inner wall of the air inlet is L4, wherein 0≤L3 =L4<0.5(L1-L2).

[0018] In this solution, the above settings are used to ensure the uniformity of air intake at the air inlets at the first and second ends of the noise reduction housing, thus preventing differences in the fume extraction effect.

[0019] Preferably, along the width direction, the distance between the first side of the noise reduction housing and the inner wall of the air inlet is B3, and the distance between the second side of the noise reduction housing and the inner wall of the air inlet is B4, wherein B3≤B4.

[0020] In this solution, the above settings ensure the size of the air inlet on the second side near the noise reduction housing, thereby making the size of the air inlet closer to the source of oil fumes larger, ensuring the oil fume adsorption effect and preventing oil fumes from escaping due to small size.

[0021] Preferably, the width of the air inlet is in the range of 0.6(B1-B2)≤B3+B4≤B1-B2 along the width direction.

[0022] In this solution, the above settings are used to ensure that the air intake area of ​​the air inlet remains unchanged.

[0023] Preferably, the connector is located at the center of the side of the noise reduction part.

[0024] In this solution, the above-mentioned settings are used to improve the stability of the noise reduction unit located in the middle area of ​​the air inlet panel.

[0025] A smoke hood, the smoke hood including the air inlet panel as described above.

[0026] In this solution, the fume hood includes the aforementioned air inlet panel. With the air inlet area remaining unchanged, the suction range is increased, preventing the escape of oil fumes and correspondingly reducing operating noise.

[0027] A range hood, the range hood comprising a smoke collection hood as described above.

[0028] In this solution, the range hood includes the aforementioned smoke collection hood to reduce noise during smoke absorption and improve the user experience.

[0029] The positive and progressive effects of this utility model are as follows: By incorporating a noise reduction unit and circumferentially surrounding it with an air inlet, this invention changes the traditional air inlet placement, expanding the suction distribution range and thus improving the absorption of oil fumes at the edges of the air inlet panel. The change in air inlet position also reduces noise during oil fume absorption. Furthermore, the noise reduction unit itself absorbs noise, preventing noise from radiating outwards from the air inlet panel and affecting the user experience. The noise reduction unit is positioned in the middle area of ​​the air inlet panel via a connector to support it and effectively reduce noise radiation, particularly in the central area where noise radiation is higher. Attached Figure Description

[0030] Figure 1 This is a perspective view of a range hood according to a preferred embodiment of the present invention.

[0031] Figure 2 This is a schematic diagram of the noise reduction unit in a preferred embodiment of the present invention.

[0032] Figure 3 This is a schematic diagram of the air inlet panel of a preferred embodiment of the present invention.

[0033] Explanation of reference numerals in the attached figures:

[0034] Air intake panel 10

[0035] Smoke collecting hood 20

[0036] Noise reduction part 1

[0037] Noise reduction housing 11

[0038] Sound-absorbing cotton 12

[0039] Noise reduction hole 13

[0040] Air inlet 2

[0041] Connecting part 3 Specific implementation mode

[0042] The following is a preferred embodiment, and the present utility model will be described more clearly and completely in conjunction with the attached drawings.

[0043] This embodiment provides an air inlet panel 10, and the specific structure is as Figure 1 、 Figure 2 and Figure 3 shown. The air inlet panel includes:

[0044] A noise reduction part 1, the noise reduction part 1 is arranged in the middle area of the air inlet panel 10, the noise reduction part 1 is flat and is arranged perpendicular to the air inlet direction of the air inlet panel 10;

[0045] An air inlet 2, the air inlet 2 is arranged around the outer peripheral side of the noise reduction part 1 and the air inlet 2 is arranged close to the edge of the air inlet panel 10;

[0046] A connecting part 3, the connecting part 3 is arranged in the air inlet 2, one end of the connecting part 3 is connected to the side part of the noise reduction part 1, and the other end of the connecting part 3 is connected to the inner wall of the air inlet 2.

[0047] Specifically, the air inlet panel 10 is a rectangular plate, and the middle area of the rectangular plate is penetrated. The noise reduction part 1 is a rectangular structure and is arranged in the middle area of the air inlet panel 10. The noise reduction part 1 itself is not penetrated. That is to say, the noise reduction part 1 is not used for air intake. The noise reduction part 1 is actually used to absorb the noise radiated from the middle area of the air inlet panel 10 to the outside, so as to reduce the noise when the air inlet panel 10 works. The outer peripheral side of the noise reduction part 1 is provided with an air inlet 2 around it, and the air inlet 2 in the shape of a "hui" character is formed through the noise reduction part 1, so that the air inlet 2 is arranged close to the edge of the air inlet panel 10. Compared with the air inlet 2 being arranged in the middle area of the air inlet panel 10, the traditional position of the air inlet is changed, and the suction distribution range is expanded, so that the air inlet 2 can correspondingly improve the oil fume absorption effect at the edge of the air inlet panel 10 and prevent the oil fume from escaping. According to the test of the noise when the air inlet panel 10 works in the prior art, the air inlet 2 in the shape of a "hui" character has a working noise 0.3 dB lower than that of the air inlet 2 arranged in the middle area of the air inlet panel 10.

[0048] In addition, the noise reduction unit 1 is disposed in the middle area of ​​the air inlet panel 10 via the connector 3. The connector 3 is a rod, which is disposed in the air inlet 2 along the length or width direction of the air inlet panel 10. The two ends of the connector 3 are fixedly connected to the inner wall of the air inlet 2 and the side of the noise reduction unit 1, respectively, so as to support the noise reduction unit 1 and effectively reduce noise in the case of large noise radiation in the middle area of ​​the air inlet panel 10.

[0049] Furthermore, in this embodiment, the noise reduction part 1 includes a noise reduction housing 11 and sound-absorbing cotton 12. Several noise reduction holes 13 are provided on the side wall of the noise reduction housing 11 and on the surface facing the smoke collection hood 20. The bottom of the noise reduction holes 13 is filled with sound-absorbing cotton 12.

[0050] Specifically, the noise-reducing housing 11 is a rectangular plate, located in the middle area of ​​the air inlet panel 10. One end of the connector 3 is connected to the side of the noise-reducing housing 11 to support it. Several noise-reducing holes 13 are formed on the sidewalls and the surface facing the smoke hood 20 of the noise-reducing housing 11. The noise-reducing holes 13 are round and filled with sound-absorbing cotton 12. This allows the noise radiated outward from the smoke hood 20 towards the air inlet panel 10 after the fumes flow into the smoke hood 20 through the air inlet 2 to be blocked by the noise-reducing housing 11. Simultaneously, the noise-reducing holes 13 and the sound-absorbing cotton 12 effectively absorb the noise, thus achieving effective noise reduction. According to existing technology, noise tests on the air inlet panel 10 during operation show that the noise reduction section 1 with noise-reducing holes 13 and sound-absorbing cotton 12 has a 0.4 dB lower operating noise compared to the air inlet panel 10 without a noise-reducing structure. It should be noted that noise testing is existing technology, and this embodiment has not improved upon it, so it will not be described in detail here.

[0051] In this embodiment, the length of the air inlet panel 10 is L1, and the length of the noise reduction housing 11 is L2, wherein 0.8L1≤L2≤0.95L1.

[0052] Specifically, the length of the noise reduction housing 11 is less than the length of the air inlet panel 10, so as to reserve space for the air inlet 2 at the first and second ends of the noise reduction housing 11. At the same time, in order to ensure the air intake volume of the air inlet 2 near the first and second ends of the noise reduction housing 11, the length range of the noise reduction housing 11 is set to 0.8L1≤L2≤0.95L1, so as to limit the length of the noise reduction housing 11 and ensure the air intake volume.

[0053] In this embodiment, the width of the air inlet panel 10 is B1, the width of the noise reduction housing 11 is B2, and 0.35B1≤B2≤0.7B1.

[0054] Specifically, the width of the noise reduction housing 11 is smaller than the width of the air inlet panel 10, so as to reserve space for the air inlet 2 on the first and second sides of the noise reduction housing 11. At the same time, in order to ensure the air intake volume of the air inlet 2 near the first and second sides of the noise reduction housing 11, the width range of the noise reduction housing 11 is set to 0.35B1≤B2≤0.7B1 to limit the width of the noise reduction housing 11 and ensure the air intake volume.

[0055] In this embodiment, along the length direction, the distance between the first end of the noise reduction housing 11 and the inner wall of the air inlet 2 is L3, and the distance between the second end of the noise reduction housing 11 and the inner wall of the air inlet 2 is L4, where 0≤L3 =L4<0.5(L1-L2).

[0056] Specifically, with the length of the noise-reducing housing 11 being less than the length of the air inlet panel 10, the distance between the first end of the noise-reducing housing 11 and the inner wall of the air inlet 2 is L3, meaning the size of the air inlet 2 near the first end of the noise-reducing housing 11 is L3. The distance between the second end of the noise-reducing housing 11 and the inner wall of the air inlet 2 is L4, meaning the size of the air inlet 2 near the second end of the noise-reducing housing 11 is L4, where L3 = L4. This means the lengths of the air inlets 2 near the first and second ends of the noise-reducing housing 11 are the same, thereby ensuring the uniformity of air intake at the air inlets 2 at both ends of the noise-reducing housing 11 and preventing differences in fume extraction performance due to different lengths of the air inlets 2 near the first and second ends of the noise-reducing housing 11. Furthermore, by limiting the dimensions of L3 and L4, the air intake size of the air inlet 2 is ensured along the length direction.

[0057] In this embodiment, along the width direction, the distance between the first side of the noise reduction housing 11 and the inner wall of the air inlet 2 is B3, and the distance between the second side of the noise reduction housing 11 and the inner wall of the air inlet 2 is B4, wherein B3≤B4.

[0058] Specifically, on the basis that the width of the noise reduction housing 11 is smaller than the width of the air inlet panel 10, by setting the distance between the first side of the noise reduction housing 11 and the inner wall of the air inlet 2 as B3, and setting the distance between the second side of the noise reduction housing 11 and the inner wall of the air inlet 2 as B4, when B3 = B4, the sizes at the air inlet 2 near the first side and the second side of the noise reduction housing 11 are the same, so as to improve the uniformity of oil fume adsorption. When B3 ≤ B4, by setting the size of the air inlet 2 near the second side of the noise reduction housing 11 to be larger, and setting the larger air inlet 2 facing the oil fume source, such as a cooking appliance, to utilize the larger air inlet 2 to ensure the intake space, ensure the oil fume adsorption effect, and prevent oil fume escape caused by a smaller size. Correspondingly, the wind speed at the air inlet 2 near the second side of the noise reduction housing 11 can be lower, while the wind speed at the air inlet 2 near the first side of the noise reduction housing 11 can be correspondingly increased due to its smaller intake space, so as to ensure the effect of gathering oil fume.

[0059] In this embodiment, in the width direction, the width value range of the air inlet 2 is 0.6(B1 - B2) ≤ B3 + B,4 ≤ B1 - B2.

[0060] Specifically, on the basis that the width of the noise reduction housing 11 is smaller than the width of the air inlet panel 10, by restricting the sizes of B3 and B4, in the width direction, the intake size of the air inlet 2 is ensured. At the same time, on the basis of restricting the sizes of L3 and L4, the intake area of the air inlet 2 is ensured, thereby ensuring the oil fume adsorption effect.

[0061] In this embodiment, the air inlet 2 in a "hui" - shaped form has the same intake area as the air inlet 2 set in the middle area of the air inlet panel 10, but different setting positions and shapes. In the case of the same intake area, the working noise of the air inlet panel 10 is lower, and the oil fume adsorption effect is better.

[0062] In this embodiment, the connecting member 3 is located at the center of the side of the noise reduction part 1.

[0063] Specifically, one end of the connecting member 3 is connected to the center of the side wall of the noise reduction housing 11. Compared with the situation where one end of the connecting member 3 is connected to other positions on the side wall of the noise reduction housing 11, the supporting stability after connection is better and the reliability is higher. It avoids the situation that the noise reduction part 1 is skewed due to the action of the incoming air flow and affects the noise reduction effect.

[0064] This embodiment also provides a smoke collecting hood 20, which includes the above - mentioned air inlet panel 10. Under the condition of unchanged intake area, the suction range is increased, preventing oil fume escape and the working noise is correspondingly reduced.

[0065] This embodiment also provides a range hood, which includes the above - mentioned smoke collecting hood 20, so as to reduce the noise when adsorbing oil fume and improve the user experience.

[0066] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.

Claims

1. An air inlet panel, characterized in that, The air inlet panel includes: A noise reduction unit is disposed in the middle area of ​​the air inlet panel. The noise reduction unit is flat and is arranged perpendicular to the air inlet direction of the air inlet panel. An air inlet is arranged around the outer periphery of the noise reduction part and is located near the edge of the air inlet panel. A connector is disposed inside the air inlet, one end of which is connected to the side of the noise reduction part, and the other end of which is connected to the inner wall of the air inlet.

2. The air inlet panel as described in claim 1, characterized in that, The noise reduction part includes a noise reduction shell and sound-absorbing cotton. Several noise reduction holes are provided on the side wall of the noise reduction shell and on the surface facing the smoke hood. The bottom of the noise reduction holes is filled with the sound-absorbing cotton.

3. The air inlet panel as described in claim 2, characterized in that, The length of the air inlet panel is L1, and the length of the noise reduction housing is L2, wherein 0.8L1≤L2≤0.95L1.

4. The air inlet panel as described in claim 3, characterized in that, The width of the air inlet panel is B1, and the width of the noise reduction housing is B2, where 0.35B1≤B2≤0.7B1.

5. The air inlet panel as described in claim 4, characterized in that, Along the length direction, the distance between the first end of the noise reduction housing and the inner wall of the air inlet is L3, and the distance between the second end of the noise reduction housing and the inner wall of the air inlet is L4, where 0≤L3 =L4<0.5(L1-L2).

6. The air inlet panel as described in claim 5, characterized in that, Along the width direction, the distance between the first side of the noise reduction housing and the inner wall of the air inlet is B3, and the distance between the second side of the noise reduction housing and the inner wall of the air inlet is B4, wherein B3≤B4.

7. The air inlet panel as described in claim 6, characterized in that, Along the width direction, the width of the air inlet ranges from 0.6(B1-B2)≤B3+B4≤B1-B2.

8. The air inlet panel as described in claim 1, characterized in that, The connector is located at the center of the side of the noise reduction unit.

9. A smoke collection hood, characterized in that, The smoke hood includes an air inlet panel as described in any one of claims 1-8.

10. A range hood, characterized in that, The range hood includes the smoke collection hood as described in claim 9.

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