Shell assembly and range hood

Abstract

The utility model relates to the technical field of range hood manufacturing, and provides a shell assembly and a range hood, the shell assembly comprises an outer shell and a fan shell, a flow channel is formed in the outer shell, the outer shell is provided with a smoke inlet and a smoke outlet, the smoke inlet, the flow channel and the smoke outlet are sequentially communicated, the outer shell comprises a back plate, and the fan shell is arranged on the back plate. First micropores are formed in the back plate; the fan shell is arranged in the flow channel and provided with an air suction opening and an air outlet, the air outlet corresponds to the smoke outlet, and the air suction opening corresponds to the back plate. According to the range hood, a good sound absorption effect is achieved under the effect that sound absorption cotton or a back cavity is not needed, and therefore the overall design size of the range hood can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of range hood manufacturing, in particular to a shell assembly and a range hood. Background Art

[0002] Range hoods can solve the problem of oil smoke diffusion generated during cooking in the kitchen and have become one of the essential appliances in the home. With the development of range hoods, the demand for range hoods is no longer limited to the ability to absorb oil smoke, but also requires range hoods to have less noise and occupy less space.

[0003] In the related technical field, perforated plates plus back cavities or perforated plates plus sound-absorbing cotton are often used to absorb the noise of range hoods. However, the setting of back cavities and sound-absorbing cotton will increase the overall volume of the range hood, which is not conducive to the development of range hoods towards miniaturization and slimness. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the related art. To this end, the utility model proposes a shell assembly, which achieves a better sound absorption effect without the need for sound-absorbing cotton or back cavity, thereby reducing the overall design volume of the range hood.

[0005] The utility model also provides a range hood.

[0006] The housing assembly according to the embodiment of the utility model comprises:

[0007] An outer shell, wherein a flow channel is formed inside the outer shell, the outer shell has a smoke inlet and a smoke outlet, the smoke inlet, the flow channel and the smoke outlet are connected in sequence, the outer shell includes a back plate, and a first micro hole is opened on the back plate;

[0008] A fan housing is arranged in the flow channel, and the fan housing has an air suction port and an air outlet. The air outlet is arranged corresponding to the smoke outlet, and the air suction port is arranged corresponding to the back plate.

[0009] According to an embodiment of the utility model, the fan casing includes a volute body, and a second micropore is opened on the wall surface along the outer peripheral side of the volute body, and the second micropore connects the inner cavity of the volute body and the flow channel.

[0010] According to one embodiment of the utility model, the volute body includes a volute front plate, a volute rear plate and a volute enclosure plate, the volute front plate and the volute rear plate are spaced apart, the volute enclosure plate is enclosed between the volute front plate and the volute rear plate to form the air outlet, the air intake port is opened on the volute front plate and the volute rear plate, and the second micropores are arranged on the volute enclosure plate.

[0011] According to an embodiment of the present invention, the second microholes are provided on the volute front plate and / or the volute rear plate.

[0012] According to an embodiment of the present invention, the diameter of the first micropore is less than or equal to 1 mm.

[0013] According to an embodiment of the utility model, the outer shell further includes a top plate, the top plate is enclosed above the fan housing, and the first microhole is opened on the top plate.

[0014] According to an embodiment of the utility model, the outer shell further comprises a panel, the panel cover is arranged on the front side of the fan housing, and the first micro hole is opened on the panel.

[0015] According to an embodiment of the utility model, the outer shell further includes a left plate and a right plate, the left plate and the right plate are arranged at intervals on the left and right sides of the fan housing, and the left plate and / or the right plate are provided with a first microhole.

[0016] According to an embodiment of the present invention, the first microhole is a circular hole, a square hole or a triangular hole.

[0017] The utility model also provides a range hood, which includes the above-mentioned shell assembly, the outer shell including an outer shell and a fan shell, a flow channel is formed inside the outer shell, the outer shell has a smoke inlet and a smoke outlet, the smoke inlet, the flow channel and the smoke outlet are connected in sequence, the outer shell includes a back plate, a first micro hole is opened on the back plate; the fan shell is arranged in the flow channel, the fan shell has an air intake and an air outlet, the air outlet is arranged corresponding to the smoke outlet, and the air intake is arranged corresponding to the back plate.

[0018] The above one or more technical solutions in the embodiments of the utility model have at least one of the following technical effects:

[0019] The present application sets a first micro hole on the back plate of the shell body. Since the back plate is opposite to the air inlet in the fan shell, there will be a significant pressure difference around the air inlet when the fan is running, which will affect the pressure of the first micro hole set on the back plate, so that a pressure difference is generated on both sides of the back plate, thereby stimulating the air column inside the first micro hole to oscillate, so that the sound energy is converted into heat energy, thereby reducing noise. At the same time, the first micro hole is set on the back plate, which can reduce the outer opening of the shell component and improve the overall aesthetics of the range hood.

[0020] 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

[0021] 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.

[0022] Figure 1 This is a schematic structural diagram of a range hood according to an embodiment of the utility model;

[0023] Figure 2 yes Figure 1 A structural diagram of the central range hood from another perspective;

[0024] Figure 3 yes Figure 2 Schematic diagram of the structure of the central range hood without the top plate and surface;

[0025] Figure 4 yes Figure 1 A cross-sectional view of the range hood.

[0026] Reference numerals:

[0027] 1. Range hood;

[0028] 10. Shell assembly;

[0029] 100, outer shell; 110, flow channel; 120, smoke inlet; 130, smoke outlet; 140, back plate; 141, first microhole; 150, top plate; 160, panel; 170, left side plate; 180, right side plate;

[0030] 200, fan casing; 210, volute body; 211, volute front plate; 212, volute rear plate; 213, volute enclosure; 213a, second microhole; 214, air inlet; 215, air outlet. DETAILED DESCRIPTION

[0031] 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.

[0032] 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.

[0033] 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.

[0034] 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.

[0035] 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.

[0036] Range hoods can solve the problem of oil smoke diffusion generated during cooking in the kitchen and have become one of the essential appliances in the home. With the development of range hoods, the demand for range hoods is no longer limited to the ability to absorb oil smoke, but also requires range hoods to have less noise and occupy less space.

[0037] In the relevant technical field, perforated plates plus back cavities or perforated plates plus sound-absorbing cotton are often used to absorb the noise of range hoods. However, the setting of the back cavities and the sound-absorbing cotton will increase the overall volume of the range hood, which is not conducive to the development of the range hood towards miniaturization and slimness.

[0038] The utility model provides a shell component and a range hood.

[0039] In the embodiment of the present utility model, Figures 1 to 4 As shown, the shell assembly 10 includes an outer shell 100 and a fan shell 200, a flow channel 110 is formed inside the outer shell 100, the outer shell 100 has a smoke inlet 120 and a smoke outlet 130, the smoke inlet 120, the flow channel 110 and the smoke outlet 130 are connected in sequence, the outer shell 100 includes a back plate 140, and the back plate 140 is provided with a first micro hole 141; the fan shell 200 is arranged in the flow channel 110, and the fan shell 200 has an air intake 214 and an air outlet 215, the air outlet 215 is arranged corresponding to the smoke outlet 130, and the air intake 214 is arranged corresponding to the back plate 140.

[0040] The outer shell 100 is the main structure of the entire assembly. A flow channel 110 is formed inside the outer shell 100 to guide smoke to flow from the smoke inlet 120 to the smoke outlet 130 .

[0041] Optionally, the shape, size and internal structure of the flow channel 110 can be further optimized to improve the smoothness and efficiency of smoke flow. A guide plate or other structure can be added inside the flow channel 110 to control the flow direction and distribution of smoke.

[0042] The smoke inlet 120 is used to allow smoke to enter the outer shell 100, and the smoke outlet 130 is a passage for smoke to flow out of the assembly.

[0043] Optionally, the position, size and shape of the smoke inlet 120 and the smoke outlet 130 can be adjusted according to the actual application scenario. For example, the smoke inlet 120 can be designed to be larger or have a guide structure to better capture and introduce smoke. The smoke outlet 130 can be designed to have a diffuser or a muffler structure to reduce noise and improve the uniformity of smoke exhaust.

[0044] The back plate 140 is a part of the outer shell 100, which supports the structure of the entire assembly. The back plate 140 is generally installed on the rear side of the range hood 1, and it is difficult for users to observe the details of the back plate 140. Therefore, the first micro hole 141 is opened on the back plate 140, which can improve the aesthetics compared to setting the first micro hole 141 on other components.

[0045] Optionally, the material and thickness of the back plate 140 can be selected as needed to provide sufficient structural strength and sound absorption performance. The size, shape and arrangement of the first micropores 141 can also be optimized to balance the sound absorption effect and airflow resistance. Micropore arrays with different pore diameters and pore spacings can be used to achieve a wider band sound absorption effect.

[0046] The fan housing 200 has a built-in fan, which provides suction to allow smoke to enter from the air inlet 214 and be discharged through the air outlet 215. The air inlet 214 is arranged corresponding to the back plate 140, so that the pressure difference generated by the fan at the air inlet 214 can act on the first microhole 141 of the back plate 140, so that a pressure difference is formed on the opposite sides of the microhole on the back plate 140.

[0047] Optionally, the design of the fan housing 200 can be optimized according to the type and performance of the fan to provide the best suction and airflow channel. The shape and size of the suction port 214 can also be adjusted to match the suction characteristics of the fan and the design of the flow channel 110 of the outer shell 100.

[0048] The air outlet 215 is disposed corresponding to the smoke outlet 130 , ensuring that the air and smoke exhausted from the fan housing 200 can be smoothly exhausted through the smoke outlet 130 .

[0049] The present application sets the first micro hole 141 on the back plate 140 of the shell body. Since the back plate 140 is opposite to the air inlet 214 in the fan housing 200, when the fan is in operation, there will be a significant pressure difference around the air inlet 214, which will affect the pressure of the first micro hole 141 set on the back plate 140, so that a pressure difference is generated on both sides of the back plate 140, thereby stimulating the air column inside the first micro hole 141 to oscillate, so that the sound energy is converted into heat energy, thereby reducing noise. At the same time, the first micro hole 141 is set on the back plate 140, which can reduce the outer opening of the shell assembly 10 and improve the overall aesthetics of the range hood 1.

[0050] Reference Figure 3According to one embodiment of the utility model, the fan housing 200 includes a volute body 210, and a second micropore 213a is provided on the wall surface along the outer peripheral side of the volute body 210, and the second micropore 213a is connected to the inner cavity of the volute body 210 and the flow channel 110. It can be understood that by providing the second micropore 213a on the volute body 210 to increase the sound absorption area of ​​the housing assembly 10, a pressure difference will be generated between the inner and outer sides of the volute body 210 due to the action of the fan. Therefore, the second micropore 213a is provided on the volute body 210, and the air column inside the second micropore can be stimulated to oscillate through the pressure difference, so that the sound energy is converted into heat energy, thereby reducing the noise. Optionally, the number and density of the micropores can be further increased to increase the sound absorption area and effect. At the same time, it is also possible to consider using micropores of different shapes and arrangements to explore the best sound absorption performance.

[0051] Reference Figure 4 According to an embodiment of the utility model, the volute body 210 includes a volute front plate 211, a volute rear plate 212 and a volute enclosure 213, the volute front plate 211 and the volute rear plate 212 are arranged at intervals, the volute enclosure 213 is enclosed between the volute front plate 211 and the volute rear plate 212 to form an air outlet 215, the air inlet 214 is opened on the volute front plate 211 and the volute rear plate 212, and the second micropore 213a is arranged on the volute enclosure 213. It can be understood that the volute front plate 211 and the volute rear plate 212 are the front and rear end surfaces of the volute body 210, and they are arranged at intervals to form a cavity for accommodating the fan and other necessary components. The volute enclosure 213 is located between the volute front plate 211 and the volute rear plate 212, and it encloses to form an air outlet 215, which is used to guide the airflow generated by the fan into the flow channel 110. The air inlet 214 is arranged through the volute front plate 211 and the volute rear plate 212, and serves as the entrance for the airflow to enter the volute body 210, affecting the flow and suction effect of the airflow. The second micropore 213a is arranged on the volute enclosure 213. Due to the guiding property of the volute body 210 for the airflow, the pressure difference between the inside and outside of the volute enclosure 213 is relatively large. The second micropore 213a is arranged on the volute enclosure 213 to better realize the air column oscillation inside the second micropore 213a, so that the sound energy is converted into heat energy, which helps to improve the sound absorption effect.

[0052] Optionally, according to an embodiment of the present invention, a second micro hole 213a is provided on the volute front plate 211 and / or the volute rear plate 212. It is understandable that the second micro hole 213a can be provided on the volute front plate 211 or the volute rear plate 212 individually or simultaneously as needed, which is not particularly limited here and can be provided as needed.

[0053] According to one embodiment of the utility model, the diameter of the first micropore 141 is less than or equal to 1 mm. It is understandable that a smaller micropore diameter can better control the flow rate and speed of the airflow through the back plate 140. Fine adjustment can help balance the interaction between the airflow and the sound absorbing material, making the sound absorption process more stable and effective. At the same time, a smaller micropore diameter may help to improve the structural strength of the back plate 140. When the micropore diameter is small, the overall structure of the back plate 140 may be more solid and better able to resist external pressure and deformation.

[0054] Optionally, the diameter of the first micropore 141 may be 1 mm, 0.9 mm, 0.8 mm, 0.7 mm, 0.6 mm, 0.5 mm, 0.4 mm, 0.3 mm, 0.2 mm or 0.1 mm, etc.

[0055] Of course, in other embodiments, the diameter of the second micro hole 213 a may be 1 mm, 0.9 mm, 0.8 mm, 0.7 mm, 0.6 mm, 0.5 mm, 0.4 mm, 0.3 mm, 0.2 mm or 0.1 mm, etc.

[0056] Reference Figure 1 and Figure 2 According to an embodiment of the utility model, the outer shell 100 further includes a top plate 150, which is enclosed above the fan housing 200, and a first micropore 141 is provided on the top plate 150. It can be understood that the top plate 150 can effectively close the top of the fan housing 200, so that the flow channel 110 is relatively closed. Secondly, the first micropore 141 provided on the top plate 150 increases the silencing area. Since a fan assembly is provided in the flow channel 110, the fan assembly can generate a pressure difference between the flow channel 110 and the outer side of the outer shell 100, and can also cause the air column in the first micropore 141 provided on the top plate 150 to vibrate, so that the sound energy is converted into heat energy, thereby further reducing the noise. Optionally, parameters such as the position, number and diameter of the first micropore 141 can be adjusted according to specific design requirements. By reasonably arranging the micropores, the best noise reduction effect and ventilation efficiency can be achieved. In addition, the material and structure of the top plate 150 also need to be comprehensively considered to ensure its stability and durability.

[0057] Reference Figure 2 and Figure 4According to an embodiment of the utility model, the outer shell 100 further includes a panel 160, which is covered on the front side of the fan housing 200, and a first micropore 141 is provided on the panel 160. It can be understood that the first micropore 141 provided on the panel 160 increases the silencing area of ​​the housing assembly 10 and also helps to improve the sound absorption effect. When the fan assembly is running, a pressure difference will be generated between the inside of the flow channel 110 and the outside of the outer shell 100, which causes the air column in the first micropore 141 provided on the panel 160 to oscillate. This oscillation can convert sound energy into heat energy, thereby reducing noise. Regarding the design of the first micropore 141, its parameters such as position, number and diameter can be adjusted according to specific application requirements. For example, the number and diameter of the micropores can be optimized according to the frequency and intensity of the noise to achieve the best noise reduction effect. At the same time, the position of the micropores also needs to take into account the uniformity and stability of the airflow to ensure the best sound absorption effect.

[0058] Reference Figure 3 According to an embodiment of the utility model, the outer shell 100 further includes a left side plate 170 and a right side plate 180, and the left side plate 170 and the right side plate 180 are arranged at intervals on the left and right sides of the fan housing 200, and the left side plate 170 and / or the right side plate 180 are provided with a first micro hole 141. It can be understood that the first micro hole 141 is provided on the left side plate 170 or the right side plate 180, which further increases the silencing area to improve the sound absorption effect. When the fan assembly is running, a pressure difference will be generated between the inside of the flow channel 110 and the outside of the outer shell 100, so that the air column in the first micro hole 141 arranged on the side plate will vibrate. This vibration can convert sound energy into heat energy, thereby reducing noise. Regarding the design of the first micro hole 141, its position, number and diameter and other parameters can be adjusted according to specific application requirements. For example, the number and diameter of the micro holes can be optimized according to the frequency and intensity of the noise to achieve the best noise reduction effect. At the same time, the position of the micro hole also needs to take into account the uniformity and stability of the air flow to ensure the best sound absorption effect. At the same time, in order to further improve the sound absorption effect, a material with certain sound absorption performance can be selected as the material of the side panel. In practical applications, experiments and simulations can be used to evaluate the impact of side panels of different materials and structures on sound absorption performance and airflow characteristics, so as to select the best side panel design solution.

[0059] Optionally, according to one embodiment of the utility model, the first micropore 141 is a circular hole, a square hole or a triangular hole. It is understandable that the circular hole is the most common micropore shape, which is relatively simple to process and has low cost. In addition, the circular hole has good fluid dynamics and can reduce the resistance when the airflow passes through. In sound absorption applications, the circular hole can provide a more uniform sound absorption effect and is suitable for most scenarios. The design of the square hole can provide a larger opening area, thereby increasing the airflow rate. In some applications, the square hole may be easier to align with other structures or components. In addition, the shape of the square hole may help guide the flow direction of the airflow and achieve certain airflow control. The design of the triangular hole can change the flow direction of the airflow to a certain extent and achieve a certain airflow guiding function. The triangular structure has good structural stability and can resist a certain external pressure. In some specific applications, such as scenes where it is necessary to guide the airflow into a specific area or prevent structural deformation, the triangular hole may be a suitable choice.

[0060] It should be noted that this embodiment only lists three shapes of circular holes, square holes and triangular holes, but in actual applications, the shape of the first microholes 141 is not limited to these three shapes. Other shapes, such as elliptical holes, rectangular holes, etc., can be selected according to specific needs to achieve better sound absorption effect and airflow control.

[0061] The utility model also proposes a range hood 1, which includes the above-mentioned shell assembly 10. The specific structure of the shell assembly 10 refers to the above-mentioned embodiment. Since the range hood 1 adopts all the technical solutions of all the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here one by one.

[0062] 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 housing assembly, characterized in that: include: An outer shell, wherein a flow channel is formed inside the outer shell, the outer shell has a smoke inlet and a smoke outlet, the smoke inlet, the flow channel and the smoke outlet are connected in sequence, the outer shell comprises a back plate, and a first micro hole is opened on the back plate; A fan housing is arranged in the flow channel, and the fan housing has an air suction port and an air outlet. The air outlet is arranged corresponding to the smoke outlet, and the air suction port is arranged corresponding to the back plate.

2. The housing assembly according to claim 1, characterized in that: The fan housing includes a volute body, and a second micropore is opened on the wall surface along the outer peripheral side of the volute body, and the second micropore communicates with the inner cavity of the volute body and the flow channel.

3. The housing assembly according to claim 2, characterized in that: The volute body includes a volute front plate, a volute rear plate and a volute enclosure plate, the volute front plate and the volute rear plate are spaced apart, the volute enclosure plate is enclosed between the volute front plate and the volute rear plate to form the air outlet, the air intake port is opened on the volute front plate and the volute rear plate, and the second micropores are arranged on the volute enclosure plate.

4. The housing assembly according to claim 3, characterized in that: The second microholes are provided on the volute front plate and / or the volute rear plate.

5. The housing assembly according to any one of claims 1 to 4, characterized in that: The diameter of the first micropore is less than or equal to 1 mm.

6. The housing assembly according to any one of claims 1 to 4, characterized in that: The outer shell further includes a top plate, which is enclosed above the fan housing and has the first microholes formed on the top plate.

7. The housing assembly according to any one of claims 1 to 4, characterized in that: The outer shell further comprises a panel, the panel cover is arranged on the front side of the fan housing, and the first micro hole is opened on the panel.

8. The housing assembly according to any one of claims 1 to 4, characterized in that: The outer shell further comprises a left side plate and a right side plate, wherein the left side plate and the right side plate are arranged at intervals on the left and right sides of the fan housing, and the left side plate and / or the right side plate are provided with the first microhole.

9. The housing assembly according to any one of claims 1 to 4, characterized in that: The first microhole is a circular hole, a square hole or a triangular hole.

10. A range hood, characterized in that: Comprising a housing assembly as described in any one of claims 1-9.

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