Range hood
By setting a sound-absorbing module at the smoke outlet of the range hood and equipping it with an oil-isolating layer, the problem of the sound-absorbing module being easily contaminated by oil is solved, the sound-absorbing module is protected and noise is reduced, the service life is extended, and the structural compactness and aesthetics of the equipment are improved.
Patent Information
- Application Number
- CN202420537395.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-19
- Publication Date
- 2025-02-25
- Estimated Expiration
- 2034-03-19
AI Technical Summary
In existing range hoods, the sound absorption module is easily contaminated by oil, which affects the sound absorption effect and shortens the service life.
A sound-absorbing module is set at the smoking port, and an oil-isolating layer is set on one side of the module to isolate the sound-absorbing module from the air flow channel and prevent the oil smoke from directly contacting the sound-absorbing module.
Effectively protect the sound-absorbing module, avoid oil pollution, extend service life, improve sound absorption effect, reduce operating noise, and enhance the compactness and aesthetics of the equipment structure.
Smart Images
Figure CN222527738U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of kitchen equipment, in particular to a range hood. Background Art
[0002] In the related art, when the range hood is in use, various parts will vibrate and generate noise. Therefore, a sound-absorbing module will be placed inside the range hood to reduce the noise generated when the range hood is in use. For example, a sound-absorbing module will be placed near the volute of the range hood. However, since the space near the volute is larger and the noise energy is more dispersed, more sound-absorbing modules need to be placed near the volute to increase the sound absorption area. However, placing more sound-absorbing modules is likely to increase costs and affect the air volume and oil fume absorption effect of the range hood. In other examples, the sound-absorbing module is placed at the smoke outlet of the range hood, but this can easily cause the sound-absorbing module to be contaminated by oil, affecting the sound absorption effect. Utility Model Content
[0003] The utility model aims to solve at least one of the technical problems existing in the related art. To this end, the utility model provides a range hood to prevent the sound absorption module arranged at the smoking port from being polluted by oil.
[0004] The utility model provides a range hood, comprising:
[0005] A housing, wherein the housing is provided with a smoking port, the smoking port has an inlet section, and an air flow channel is formed in the inlet section;
[0006] A sound absorbing module, the sound absorbing module is arranged on the inner wall of the inlet section;
[0007] An oil-isolating layer is provided on one side of the sound-absorbing module, and the oil-isolating layer isolates the sound-absorbing module from the airflow channel.
[0008] According to the range hood provided by the utility model, a sound absorbing module is placed at the smoke intake port, and an oil barrier layer is provided on one side of the sound absorbing module so that the oil barrier layer isolates the sound absorbing module from the air flow channel. In this way, the oil barrier layer can prevent oil smoke from directly contacting the sound absorbing module, thereby avoiding the pollution of the sound absorbing module by oil smoke, protecting the sound absorbing module, and extending the service life of the sound absorbing module.
[0009] According to an embodiment of the utility model, the inner wall of the inlet section has a sound absorbing space, the sound absorbing module is arranged in the sound absorbing space, and the oil barrier layer blocks the opening of the sound absorbing space.
[0010] According to one embodiment of the utility model, the housing comprises:
[0011] Shell body;
[0012] An opening and closing plate, wherein the opening and closing plate and the shell body together form the smoking port, and the opening and closing plate is flippably arranged on one side of the shell body to open or close the smoking port; the sound absorbing space is arranged on the opening and closing plate.
[0013] According to one embodiment of the utility model, the opening and closing plate comprises:
[0014] A plate body, the plate body is flippably arranged on one side of the shell body, and the sound absorbing module is arranged on the plate body;
[0015] An airflow guide plate is connected to the plate body, and an angle is formed between the airflow guide plate and the plate body, wherein the angle is α, and α is less than 90 degrees. The airflow guide plate and the plate body together form the sound absorption space.
[0016] According to an embodiment of the utility model, the wall surface of the opening has a mounting groove, and the oil-isolating layer is arranged in the mounting groove.
[0017] According to one embodiment of the utility model, the oil-isolating layer is separated from the sound-absorbing module.
[0018] According to one embodiment of the utility model, the sound absorbing module comprises:
[0019] A plurality of sound absorbing units are arranged side by side, and the sound absorbing units include connected sound absorbing holes and sound absorbing cavities, and the sound absorbing holes are opposite to the oil-isolating layer.
[0020] According to an embodiment of the present invention, at least two of the sound absorbing units have sound absorbing cavities of different lengths, and / or at least two of the sound absorbing units have sound absorbing holes of different diameters.
[0021] According to an embodiment of the present invention, the sound absorbing unit is a 1 / 4 wavelength tube, and / or the sound absorbing unit is a T-shaped sound absorbing tube.
[0022] According to an embodiment of the utility model, the oil-isolating layer is sound-absorbing cotton, and the density of the sound-absorbing cotton is less than 10 kg / cubic meter.
[0023] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or related technologies, the drawings required for use in the embodiments or related technical descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0025] Figure 1 It is a schematic diagram of the structure of the range hood provided by the utility model;
[0026] Figure 2 yes Figure 1 A cross-sectional view along the AA direction;
[0027] Figure 3 yes Figure 2 A local enlarged view of point A;
[0028] Figure 4 It is another structural schematic diagram of the range hood provided by the utility model, in which part of the housing of the range hood is hidden;
[0029] Figure 5 It is another structural schematic diagram of the range hood provided by the utility model, in which the oil absorption layer is hidden;
[0030] Figure 6 yes Figure 5 A partial enlarged view of point B.
[0031] Reference numerals:
[0032] 10. Range hood;
[0033] 100, housing; 110, housing body; 120, opening and closing plate; 121, plate body; 122, air flow guide plate;
[0034] 130, smoking port; 131, inlet section; 132, air flow channel; 140, sound absorbing space; 141, opening;
[0035] 200, sound absorbing module; 210, sound absorbing unit; 211, sound absorbing hole;
[0036] 300. Oil barrier layer. DETAILED DESCRIPTION
[0037] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.
[0038] In the description of the embodiments of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.
[0039] In the description of the embodiments of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.
[0040] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.
[0041] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model embodiment. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.
[0042] In the related art, when the range hood is in use, various parts will vibrate and generate noise. Therefore, a sound-absorbing module will be placed inside the range hood to reduce the noise generated when the range hood is in use. For example, a sound-absorbing module will be placed near the volute of the range hood. However, since the space near the volute is larger and the noise energy is more dispersed, more sound-absorbing modules need to be placed near the volute to increase the sound absorption area. However, placing more sound-absorbing modules is likely to increase costs and affect the air volume and oil fume absorption effect of the range hood. In other examples, the sound-absorbing module is placed at the smoke outlet of the range hood, but this can easily cause the sound-absorbing module to be contaminated by oil, affecting the sound absorption effect.
[0043] like Figures 1 to 6 As shown, the utility model provides a range hood 10, including a housing 100, a sound absorbing module 200 and an oil barrier 300. It should be noted that the range hood 10 provided by the utility model has a noise reduction function, which can effectively improve the comfort of the kitchen environment and the service life of the range hood 10. Specifically, as Figures 2 to 4 As shown, the housing 100 is provided with a smoke inlet 130, and the smoke inlet 130 has an inlet section 131, and an airflow channel 132 is formed in the inlet section 131. When the range hood 10 is working, the airflow carries the oil smoke into the smoke inlet 130, flows through the airflow channel 132, and finally is discharged from the exhaust port. The sound absorbing module 200 is arranged on the inner wall of the inlet section 131. The oil barrier layer 300 is arranged on one side of the sound absorbing module 200, and the oil barrier layer 300 isolates the sound absorbing module 200 from the airflow channel 132. In this way, the oil barrier layer 300 can protect the sound absorbing module 200 and prevent oil from accumulating in the sound absorbing module 200, thereby affecting the sound absorption effect of the sound absorbing module 200. In addition, the sound absorbing module 200 can be prevented from being corroded by oil stains, thereby extending the service life of the sound absorbing module 200.
[0044] According to the range hood 10 of the embodiment of the utility model, the sound absorbing module 200 is placed at the smoking port 130, and an oil-isolating layer 300 is provided on one side of the sound absorbing module 200, so that the oil-isolating layer 300 isolates the sound absorbing module 200 and the airflow channel 132. In this way, the oil-isolating layer 300 can prevent oil smoke from directly contacting the sound absorbing module 200, thereby avoiding the pollution of the sound absorbing module 200 by oil smoke, protecting the sound absorbing module 200, and extending the service life of the sound absorbing module 200.
[0045] like Figure 2 and Figure 3As shown, in one embodiment of the utility model, the inner wall of the inlet section 131 has a sound absorbing space 140, the sound absorbing module 200 is arranged in the sound absorbing space 140, and the oil barrier layer 300 is arranged at the opening 141 of the sound absorbing space 140. The setting of the sound absorbing space 140 allows the sound absorbing module 200 to have a larger space for noise absorption, thereby more effectively reducing the operating noise of the range hood 10 and improving the comfort of the kitchen environment. In addition, the sound absorbing module 200 is arranged in the sound absorbing space 140, which can better protect the sound absorbing module 200, prevent the sound absorbing module 200 from directly contacting the oil smoke and airflow, and extend the service life of the sound absorbing module 200. The oil barrier layer 300 blocks the opening 141 of the sound absorbing space 140, which can prevent the oil smoke from entering the sound absorbing space 140, protect the sound absorbing module 200 from being corroded by the oil smoke, and also prevent the oil smoke from entering the inside of the housing 100, protect the internal components of the machine, and extend the service life of the range hood 10. At the same time, such a design also makes the structure of the range hood 10 more compact and more beautiful.
[0046] In one embodiment of the present invention, Figures 2 to 4 As shown, the housing 100 includes a housing body 110 and an opening and closing plate 120. The opening and closing plate 120 and the housing body 110 together form a smoke outlet 130, and the opening and closing plate 120 can be flipped and arranged on one side of the housing body 110 to open or close the smoke outlet 130; the sound absorption space 140 is arranged on the opening and closing plate 120. The design of the opening and closing plate 120 allows the smoke outlet 130 to be opened or closed as needed, thereby improving the flexibility of the use of the range hood 10. At the same time, when the range hood 10 is not in use, the smoke outlet 130 can be closed to prevent dust and other debris from entering and protect the internal components of the machine. The sound absorption space 140 is arranged on the opening and closing plate 120, so that when the opening and closing plate 120 is opened, the sound absorption space 140 will communicate with the external environment, which can more effectively absorb noise, reduce the operating noise of the range hood 10, and improve the comfort of the kitchen environment. At the same time, such a design also makes the structure of the range hood 10 more compact and more beautiful.
[0047] like Figure 3 As shown, in one embodiment of the utility model, the opening and closing plate 120 includes a plate body 121 and an airflow guide plate 122. The plate body 121 is flippably arranged on one side of the shell body 110, and the sound absorption module 200 is arranged on the plate body 121. The airflow guide plate 122 is connected to the plate body 121, and the airflow guide plate 122 and the plate body 121 are arranged at an angle, and the angle α is less than 90 degrees. The airflow guide plate 122 and the plate body 121 together form a sound absorption space 140. Among them, the airflow guide plate 122 can guide the airflow near the smoking port 130. Such a design can improve the airflow state near the smoking port 130, reduce the vortex generated by the airflow, and interfere with the sound absorption effect, thereby improving the sound absorption effect.
[0048] like Figure 3 As shown, in one embodiment of the utility model, the wall surface of the opening 141 has a mounting groove, and the oil-isolating layer 300 is arranged in the mounting groove. The shape of the oil-isolating layer 300 is adapted to the shape of the mounting groove, so that the mounting groove can provide a stable mounting position for the oil-isolating layer 300, so that the oil-isolating layer 300 can be firmly fixed to the opening 141 of the sound-absorbing space 140, thereby effectively preventing the oil-isolating layer 300 from falling off due to vibration or other external forces. The design of the mounting groove also makes the replacement and maintenance of the oil-isolating layer 300 more convenient, thereby improving the use efficiency of the equipment. At the same time, the oil-isolating layer 300 can also prevent substances such as grease from accumulating in the mounting groove, reducing the workload of cleaning and maintenance. In addition, the oil-isolating layer 300 can also prevent substances such as grease from corroding the mounting groove, thereby protecting the structural stability of the mounting groove.
[0049] like Figure 3 As shown, in some embodiments of the present invention, the oil-isolating layer 300 is separated from the sound-absorbing module 200, so that the oil-isolating layer 300 can be prevented from being close to the sound-absorbing module 200, thereby reducing the stiffness of the oil-isolating layer 300. It should be noted that stiffness is the ability of an object to resist deformation, which is related to factors such as the shape and material of the object. In the present invention, the oil-isolating layer 300 is separated from the sound-absorbing module 200, so that a buffer space is generated between the oil-isolating layer 300 and the sound-absorbing module 200. In this way, when the oil-isolating layer 300 is impacted by sound waves, the oil-isolating layer 300 can be deformed, thereby reducing the overall stiffness of the oil-isolating layer 300. In this way, sound can more easily pass through the oil-isolating layer 300, so that the sound is absorbed by the sound-absorbing module 200.
[0050] like Figure 5 and Figure 6 As shown, in some embodiments of the present invention, the sound absorbing module 200 includes a plurality of sound absorbing units 210, and the plurality of sound absorbing units 210 are arranged side by side, so that the sound absorbing area can be increased, the sound absorbing efficiency can be improved, the operating noise of the range hood 10 can be more effectively reduced, and the comfort of the kitchen environment can be improved. The sound absorbing unit 210 includes a connected sound absorbing hole 211 and a sound absorbing cavity (not shown in the figure), so that the noise is effectively absorbed after entering the sound absorbing cavity, further improving the sound absorbing effect. The sound absorbing hole 211 is opposite to the oil barrier layer 300, which can prevent oil smoke from directly entering the sound absorbing hole 211, protect the sound absorbing cavity from being corroded by oil smoke, and extend the service life of the sound absorbing module 200.
[0051] In some embodiments of the utility model, the sound absorbing cavities of at least two sound absorbing units 210 have different lengths, so that the sound absorbing unit 210 can have a better absorption effect on noises of different frequencies. The sound absorption effect of the sound absorbing unit 210 is related to its length, and the sound absorbing units 210 of different lengths can absorb noises of different frequencies. For example, a long sound absorbing unit 210 can absorb low-frequency noise, while a short sound absorbing unit 210 can absorb high-frequency noise. In this way, by adjusting the length of the sound absorbing unit 210, the sound absorbing unit 210 can effectively absorb noises of various frequencies generated during the operation of the range hood 10. In addition, the lengths of different sound absorbing units 210 can also be adjusted according to actual needs to meet different sound absorption requirements. For example, if the noise in a certain frequency band is large, the length of the sound absorbing unit 210 corresponding to the frequency band can be increased to improve the absorption effect on the noise in the frequency band.
[0052] Of course, the configuration of the sound absorbing unit 210 is not limited to this. In other embodiments of the present invention, the sound absorbing holes 211 of at least two sound absorbing units 210 have different sizes. By adjusting the size of the sound absorbing holes 211, the sound absorbing unit 210 can effectively absorb noises of various frequencies generated during the operation of the range hood 10. This design can also be adjusted according to actual needs to meet different sound absorption requirements. For example, if the noise in a certain frequency band is large, the size of the sound absorbing hole 211 corresponding to the frequency band can be increased to improve the absorption effect of the noise in the frequency band.
[0053] like Figure 5 and Figure 6 As shown, in some embodiments of the present invention, the sound absorbing unit 210 is a 1 / 4 wavelength tube, and the working principle of the 1 / 4 wavelength tube is to use the reflection and interference of sound waves in the tube to produce a sound elimination effect. When the length of the sound absorbing unit 210 is equal to one-fourth of the wavelength of the sound wave, the sound wave reflection in the tube and the original sound wave will form an interference with a phase difference of 180 degrees, thereby achieving a sound elimination effect. Therefore, the sound absorbing unit 210 is designed as a 1 / 4 wavelength tube, which can effectively absorb noise of a specific frequency, thereby reducing the operating noise of the range hood 10. At the same time, the 1 / 4 wavelength tube has a simple structure, is easy to manufacture and install, and reduces the production cost.
[0054] Of course, the configuration of the sound absorbing unit 210 is not limited to this. In some other embodiments of the present invention, the sound absorbing unit 210 can also be a T-shaped sound absorbing tube. Designing the sound absorbing unit 210 as a T-shaped sound absorbing tube can more effectively absorb the multi-band noise generated during the operation of the range hood 10, thereby further reducing the operating noise of the range hood 10.
[0055] like Figure 4As shown, in some embodiments of the present invention, the oil-isolating layer 300 is sound-absorbing cotton, the surface of the sound-absorbing cotton can prevent oil from entering the inside of the module, and can effectively absorb broadband noise of medium and high frequencies, while the sound-absorbing unit 210 can effectively absorb low-frequency noise. The combination of the two sound-absorbing materials, the sound-absorbing cotton and the sound-absorbing unit 210, can better achieve full-band noise control.
[0056] In addition, the density of the sound-absorbing cotton is less than 10 kg / m3. Since the sound insulation follows the principle of mass law, that is, the greater the unit surface density of the sound insulation material, the greater the sound insulation. The surface density is proportional to the sound insulation. Materials with too high density will reflect more sound, thereby reducing their sound insulation effect. Therefore, the density of the sound-absorbing cotton layer is less than 10 kg / m3, which can reduce the reflection of sound and improve the sound absorption effect while ensuring good sound insulation effect. At the same time, such a design is also conducive to reducing the weight of the equipment and improving the stability and service life of the equipment.
[0057] Finally, it should be noted that the above implementation modes are only used to illustrate the present invention, rather than to limit the present invention. Although the present invention is described in detail with reference to the embodiments, a person skilled in the art should understand that various combinations, modifications or equivalent replacements of the technical solutions of the present invention do not depart from the spirit and scope of the technical solutions of the present invention, and should be included in the scope of the claims of the present invention.
Claims
1. A range hood, characterized in that: include: A housing, wherein the housing is provided with a smoking port, the smoking port has an inlet section, and an air flow channel is formed in the inlet section; A sound absorbing module, the sound absorbing module is arranged on the inner wall of the inlet section; An oil-isolating layer is provided on one side of the sound-absorbing module, and the oil-isolating layer isolates the sound-absorbing module from the airflow channel.
2. The range hood according to claim 1, characterized in that: The inner wall of the inlet section is provided with a sound absorbing space, the sound absorbing module is arranged in the sound absorbing space, and the oil barrier layer blocks the opening of the sound absorbing space.
3. The range hood according to claim 2, characterized in that: The housing comprises: Shell body; An opening and closing plate, wherein the opening and closing plate and the shell body together form the smoking port, and the opening and closing plate is flippably arranged on one side of the shell body to open or close the smoking port; the sound absorbing space is arranged on the opening and closing plate.
4. The range hood according to claim 3, characterized in that: The opening and closing plate comprises: A plate body, the plate body is flippably arranged on one side of the shell body, and the sound absorbing module is arranged on the plate body; An airflow guide plate is connected to the plate body, and an angle is formed between the airflow guide plate and the plate body, wherein the angle is α, and α is less than 90 degrees. The airflow guide plate and the plate body together form the sound absorption space.
5. The range hood according to claim 2, characterized in that: The wall surface of the opening is provided with a mounting groove, and the oil-isolating layer is arranged in the mounting groove.
6. The range hood according to claim 2, characterized in that: The oil-isolating layer is separated from the sound-absorbing module.
7. The range hood according to claim 1, characterized in that: The sound absorbing module comprises: A plurality of sound absorbing units are arranged side by side, and the sound absorbing units include connected sound absorbing holes and sound absorbing cavities, and the sound absorbing holes are opposite to the oil-isolating layer.
8. The range hood according to claim 7, characterized in that: The sound absorbing cavities of at least two of the sound absorbing units have different lengths, and / or the sound absorbing holes of at least two of the sound absorbing units have different diameters.
9. The range hood according to claim 7, characterized in that: The sound absorbing unit is a 1 / 4 wavelength tube, and / or the sound absorbing unit is a T-shaped sound absorbing tube.
10. The range hood according to any one of claims 1 to 9, characterized in that: The oil-isolating layer is sound-absorbing cotton, and the density of the sound-absorbing cotton is less than 10 kg / cubic meter.