Silencing mechanism, fan assembly and integrated cooker

Abstract

The utility model discloses a noise reduction mechanism which comprises a noise reduction base layer extending linearly, a plurality of groups of magnetic noise reduction units are continuously arranged on the noise reduction base layer in the extending direction of the noise reduction base layer, and the noise reduction base layer is provided with a magnetic force control assembly. The magnetic force control unit is used for controlling the protruding degree of at least part of the silencing units relative to the silencing base layer through magnetic force, so that the silencing base layer is in a silencing state, and the multiple silencing units form a waveform structure. The utility model further discloses a fan assembly with the silencing mechanism and an integrated cooker. The utility model has the beneficial effects that the waveform structure formed by the silencing base layer is counteracted with the noise waveform, so that the effect of adjusting the noise is achieved.

Description

Technical Field

[0001] The utility model relates to a sound insulation mechanism, a fan assembly and an integrated stove, belonging to the technical field of kitchen appliances. Background Art

[0002] As an important part of kitchen appliances, the noise level of the integrated stove is crucial for user experience and product competitiveness.

[0003] In an existing technology of an integrated stove for sound insulation and noise reduction, it is mainly to set a cover plate to avoid the noise generated by the operation of the centrifugal fan. This method only simply blocks the noise and does not play a role in adjusting the noise. In addition, a single structural change cannot let users intuitively feel the effectiveness of sound insulation. Content of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide a sound insulation mechanism, a fan assembly and an integrated stove, which can cancel the noise waveform through the waveform structure formed by the sound insulation base layer, achieve the function of adjusting the noise, and can realize non-contact control through magnetic force control, thereby prolonging the service life.

[0005] The utility model is realized by the following technical solutions.

[0006] A sound insulation mechanism includes a sound insulation base layer extending linearly. Along its extension direction, a plurality of magnetic sound insulation units are continuously arranged on the sound insulation base layer. The sound insulation base layer is provided with a magnetic force control component for controlling the protruding degree of at least part of the sound insulation units relative to the sound insulation base layer through magnetic force, so that the sound insulation base layer is in a sound insulation state, and the plurality of sound insulation units form a waveform structure.

[0007] As a further improvement of the utility model, the sound insulation unit can slide and stretch relative to the sound insulation base layer along the protruding direction. The magnetic force control component includes a plurality of energized coils and relays connected by wires. The plurality of energized coils are arranged on the sound insulation base layer and respectively correspond to different sound insulation units. The relay is used to control the current of the energized coils.

[0008] As a further improvement of the utility model, a noise receiving sensor is arranged on the sound insulation base layer for identifying noise and forming a signal to be transmitted to the relay.

[0009] As a further improvement of the utility model, the sound insulation unit includes a plurality of sound insulation bump structures arranged side by side.

[0010] A fan assembly includes a fan housing, a fan disposed within the fan housing, and a duct having an air inlet and an air outlet and connecting to the fan housing; at least two layers of spaced-apart sound-absorbing bases are disposed within the duct, and the sound-absorbing bases are arranged along the wind direction within the duct.

[0011] As a further improvement of the present utility model, a first connecting plate and a second connecting plate are respectively disposed within the duct near and far from the air outlet. The first connecting plate is provided with a ventilation opening corresponding to the air outlet, so that the oil fume passes through the ventilation opening and the air outlet in sequence, and both ends of the sound-absorbing base are respectively connected to the first connecting plate and the second connecting plate.

[0012] As a further improvement of the present utility model, at least two layers of supporting portions are provided on the first connecting plate and the second connecting plate, and both ends of the sound-absorbing base are respectively supported on the corresponding supporting portions of the first connecting plate and the second connecting plate.

[0013] As a further improvement of the present utility model, a plurality of air holes are arranged on the first connecting plate.

[0014] An integrated stove includes the above-mentioned fan assembly.

[0015] Advantages of the present utility model:

[0016] 1. Through the magnetic control component, the protruding degree of the sound-absorbing unit relative to the sound-absorbing base can be controlled, that is, the shape of the waveform structure formed by multiple groups of sound-absorbing units can be controlled and adjusted to match different noise sound waves, so as to effectively eliminate noise and achieve the noise reduction function.

[0017] 2. The magnetic control component controls and drives the movement of the sound-absorbing unit through magnetic force. Compared with other control and drive methods such as motor control and drive or cylinder control and drive, the magnetic control component transmits power through the magnetic field and does not require physical contact. Therefore, mechanical wear and lubrication problems can be avoided. Moreover, because there is no direct mechanical contact and friction, the maintenance requirements are low and the service life is long.

[0018] 3. The sound-absorbing base for noise reduction is configured in the duct, which can greatly eliminate the noise generated by oil fume, improve the quietness of the fan assembly during operation, reduce the noise pollution in the kitchen environment, and improve the user experience.

[0019] 4. By providing at least two layers of sound-absorbing bases and enabling the sound-absorbing units on different sound-absorbing bases to form different waveform structures through the control mechanism, these multiple and miscellaneous noises can be more thoroughly cancelled, and better use adaptability is achieved. Description of the Drawings

[0020] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings to facilitate understanding of the purpose and advantages of the present invention, where:

[0021] Figure 1 is a schematic structural diagram of a sound-absorbing base layer;

[0022] Figure 2 is an internal schematic diagram of the sound-absorbing base layer;

[0023] Figure 3 is a schematic overall structural diagram of a fan assembly;

[0024] Figure 4 is a schematic structural diagram of a first connecting plate. Specific embodiments

[0025] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0026] The orientation terms such as up, down, left, right, front, back, front side, back side, top, bottom, etc. mentioned or possibly mentioned in this specification are defined with respect to the structures shown in the respective drawings. The terms "inner" and "outer" respectively refer to the directions towards or away from the geometric center of a specific component. They are relative concepts and may therefore change accordingly depending on their different positions and different usage states. Therefore, these or other orientation terms should not be construed as restrictive terms.

[0027] Embodiment 1:

[0028] A sound-absorbing mechanism, referring to Figure 1 Figure 2 , includes a sound-absorbing base layer 2. The sound-absorbing base layer 2 extends linearly and presents a flat plate-like structure or a sheet-like structure. Along its extending direction, a plurality of groups of sound-absorbing units 21 are continuously arranged on the sound-absorbing base layer 2, and the sound-absorbing units 21 have magnetism. The sound-absorbing units 21 can be configured to install magnetic parts, or the sound-absorbing units 21 can be made of magnetic materials. The sound-absorbing base layer 2 is provided with a magnetic force control component for controlling the protruding degree of at least part of the sound-absorbing units 21 relative to the sound-absorbing base layer 2 through magnetic force, so that the sound-absorbing base layer 2 is in a sound-absorbing state, and the plurality of groups of sound-absorbing units 21 form a waveform structure.

[0029] The sound-absorbing mechanism of this embodiment is particularly suitable for being configured in a relatively long and narrow passage with air flow. Its function is to eliminate the noise in the passage. The principle of noise reduction is that through the magnetic force control component, the protruding degree of the sound-absorbing units 21 relative to the sound-absorbing base layer 2 can be controlled, that is, the shape of the waveform structure formed by the plurality of groups of sound-absorbing units 21 can be controlled and adjusted to match and adapt to different noise sound waves, so as to effectively eliminate noise and achieve the noise reduction function. Obviously, when there is no noise or the noise level is low in the passage, the magnetic force control component controls the sound-absorbing units 21 to reset.

[0030] In this embodiment, the magnetic control component controls the movement of the noise reduction unit 21 through magnetism. Compared with other control driving methods such as motor control driving or cylinder control driving, the magnetic control component transmits power through a magnetic field and does not require physical contact. Therefore, mechanical wear and lubrication problems can be avoided. Moreover, because there is no direct mechanical contact and friction, the maintenance requirements are low and the service life is long.

[0031] In this embodiment, the noise reduction unit 21 can slide and expand relative to the noise reduction base layer 2 in the protruding direction. The magnetic control component includes a plurality of energized coils 311 connected by wires 312 and a relay 313. The plurality of energized coils 311 are arranged on the noise reduction base layer 2 and respectively correspond to different noise reduction units 21. The relay 313 is used to control the current of the energized coils 311. By controlling the magnitude of the current through the relay 313, the sliding and expansion amount of the noise reduction unit 21 can be controlled, that is, the protruding degree of the noise reduction unit 21 relative to the noise reduction base layer 2 can be controlled, so as to present a matching waveform structure. By controlling the current direction of the energized coils 311 by the relay 313, the sliding extension or sliding retraction of the noise reduction unit 21 can be controlled. In addition, the energized coils 311 and the wires 312 can be embedded inside the noise reduction base layer 2.

[0032] In this embodiment, a noise receiving sensor 32 is arranged on the noise reduction base layer 2, which is used to identify noise and form a signal to be transmitted to the relay 313. Through the noise receiving sensor 32, the noise condition in the environment can be accurately detected, and a targeted noise reduction effect can be achieved through cooperation with the relay 313.

[0033] In this embodiment, for the noise reduction unit 21, the noise reduction unit 21 includes a plurality of noise reduction bump structures 211 arranged side by side, and the side-by-side direction is perpendicular to the extension direction of the noise reduction base layer 2.

[0034] Embodiment 2:

[0035] A fan assembly, referring to Figure 3 、 Figure 4 and combined with Figure 1 , is mainly applied in an integrated range hood and configured as a part of the lower computer of the integrated range hood. Its function is to make the oil fume be sucked into the smoke collecting hood by providing negative pressure, and then the oil fume is discharged through the fan assembly. The fan assembly of this embodiment includes a fan housing 12, a fan 11, and an air duct 13. Among them, the fan 11 is arranged in the fan housing 12, the air duct 13 is arranged horizontally and connected to the bottom of the fan housing 12. The air duct 13 has an air inlet 131 and an air outlet 132. The air inlet 131 is formed at the top of the air duct 13, and the air outlet 132 is formed at one end of the air duct 13.

[0036] In this embodiment, at least two layers of sound-absorbing base layers 2 spaced apart from each other are provided in the air duct 13. The sound-absorbing base layer 2 is as shown in Embodiment 1, and the sound-absorbing base layer 2 extends along the wind direction in the air duct 13.

[0037] In this embodiment, since the air duct 13 of the fan assembly is relatively long and narrow in structure, most of the noise generated by the oil fume is mainly generated in the air duct 13. Therefore, the sound-absorbing base layer 2 for noise reduction in this embodiment is arranged in the air duct 13, which can greatly eliminate the noise caused by the oil fume, improve the quietness of the fan assembly during operation, reduce the noise pollution in the kitchen environment, and improve the user experience.

[0038] It should be noted that when the oil fume flows from the fan 11 into the air duct 13, its flow direction will change, thus generating noise; due to the relatively long and narrow structure of the air duct 13, during the high-speed flow of the oil fume in the air duct 13, it will be affected by the inner wall of the air duct 13 to form a turbulent flow, and the airflow velocity pulsation in the turbulent flow will also generate noise; when the fan 11 starts, it will generate vibration, and under the influence of the vibration of the fan 11, the air duct 13 is also prone to mechanical resonance and thus generate noise. Therefore, the noise in the air duct 13 is relatively complex and the noise sources are diverse. In this embodiment, by providing at least two layers of sound-absorbing base layers 2, and the sound-absorbing units 21 on different sound-absorbing base layers 2 can form different waveform structures through the control mechanism, so that these multiple and miscellaneous noises can be more thoroughly cancelled, and it has better use adaptability. In addition, due to the different rotational speeds of the fan 11 and the different oil fume densities, the amount of noise will also be different. In this embodiment, the number of the required sound-absorbing base layers 2 can be reasonably adapted according to the amount of noise.

[0039] In this embodiment, a first connecting plate 41 and a second connecting plate 42 are provided in the air duct 13. Among them, the first connecting plate 41 is close to the air outlet 132, while the second connecting plate 42 is far from the air outlet 132. A through ventilation opening 411 is provided in the middle of the first connecting plate 41, and the ventilation opening 411 corresponds to the air outlet 132, so that the oil fume entering the air duct 13 through the air inlet 131 flows along the air duct 13 and passes through the ventilation opening 411 and the air outlet 132 in sequence. Both ends of the sound-absorbing base layer 2 are respectively arranged on the first connecting plate 41 and the second connecting plate 42, so that the state of these sound-absorbing base layers 2 arranged in the air duct 13 is kept stable, and its sound-absorbing and noise-reducing function can be fully and effectively exerted.

[0040] In this embodiment, specifically, at least two supporting portions 401 are provided on the first connecting plate 41 and the second connecting plate 42, and both ends of the sound-absorbing base layer 2 are respectively supported on the corresponding supporting portions 401, which is convenient for the installation of the sound-absorbing base layer 2 in the air duct 13. In addition, the two ends of the sound-absorbing base layer 2 and the corresponding supporting portions 401 can be connected by detachable fasteners such as screws to prevent the sound-absorbing base layer 2 from shaking and other phenomena.

[0041] In this embodiment, a plurality of air holes 412 are arranged on the first connecting plate 41. During the high-speed flow of oil fume in the air duct 13, most of the oil fume passes through the ventilation opening 411, and a small part of the oil fume close to the inner wall of the air duct 13 passes through the air holes 412. On the one hand, the setting of the air holes 412 can increase the flow rate of the oil fume in the air duct 13 without affecting the installation of the sound-absorbing base layer 2. On the other hand, when a small part of the oil fume passes through the air holes 412, it can reduce the impact intensity of the oil fume on the first connecting plate 41, thereby reducing the noise in the air duct 13.

[0042] Embodiment 3:

[0043] An integrated range hood includes a fan assembly, and the fan assembly is as shown in Embodiment 1.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A sound insulation mechanism, characterized in that It includes a sound-absorbing base layer (2) extending linearly. Along its extending direction, multiple groups of magnetic sound-absorbing units (21) are continuously arranged on the sound-absorbing base layer (2). The sound-absorbing base layer (2) is provided with a magnetic force control component for controlling the protruding degree of at least part of the sound-absorbing units (21) relative to the sound-absorbing base layer (2) through magnetic force, so that the sound-absorbing base layer (2) is in a sound-absorbing state, and multiple groups of sound-absorbing units (21) form a waveform structure.

2. The silencing mechanism according to claim 1, wherein, The sound-absorbing unit (21) can slide and expand relative to the sound-absorbing base layer (2) along the protruding direction. The magnetic force control component includes multiple energized coils (311) connected by electric wires (312) and a relay (313). The multiple energized coils (311) are arranged on the sound-absorbing base layer (2) and respectively correspond to different sound-absorbing units (21). The relay (313) is used to control the current of the energized coils (311).

3. The sound deadening mechanism according to claim 2, characterized in that, A noise receiving sensor (32) is arranged on the sound-absorbing base layer (2) for identifying noise and forming a signal to be transmitted to the relay (313).

4. The sound insulation mechanism according to claim 1, characterized in that The sound-absorbing unit (21) includes multiple sound-absorbing bump structures (211) arranged side by side.

5. A fan assembly, characterized in that, It includes a fan housing (12), a fan (11) arranged in the fan housing (12), and an air duct (13) having an air inlet (131) and an air outlet (132) and connecting the fan housing (12). At least two layers of spaced-apart sound-absorbing base layers (2) according to any one of claims 1-4 are arranged in the air duct (13), and the sound-absorbing base layer (2) extends along the wind direction in the air duct (13).

6. The blower assembly according to claim 5, wherein A first connecting plate (41) and a second connecting plate (42) are respectively arranged in the air duct (13) near and far from the air outlet (132). The first connecting plate (41) is provided with a ventilation opening (411) corresponding to the air outlet (132) so that oil fume passes through the ventilation opening (411) and the air outlet (132) in sequence. Two ends of the sound-absorbing base layer (2) are respectively arranged on the first connecting plate (41) and the second connecting plate (42).

7. The fan assembly according to claim 6, wherein At least two layers of supporting parts (401) are arranged on the first connecting plate (41) and the second connecting plate (42). Two ends of the sound-absorbing base layer (2) are respectively supported on the corresponding supporting parts (401) of the first connecting plate (41) and the second connecting plate (42).

8. The fan assembly according to claim 6, characterized in that, Multiple air holes are arranged on the first connecting plate.

9. An integrated range hood, characterized in that, It includes the fan assembly according to any one of claims 5-8.

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