Machine head and integrated cooker

Abstract

The utility model belongs to the technical field of kitchen appliances, and discloses a machine head and an integrated cooker. An air duct is formed in the machine head, the machine head further comprises a noise reduction assembly, the noise reduction assembly comprises a first flow guide part and a sound absorption part, the first flow guide part forms a containing cavity and is provided with a plurality of through holes, and the first flow guide part is connected with the side wall of the air duct. The sound absorption part is contained in the containing cavity and located between the first flow guide part and the side wall of the air duct so that a sound cavity can be formed between the sound absorption part and the first flow guide part. According to the machine head and the integrated cooker, due to the arrangement of the containing cavity, when the sound absorption part is installed, the sound absorption part is installed in the containing cavity firstly, then the first flow guide part is installed on the corresponding air duct side wall, additional installation parts are not needed for the sound absorption part, and the installation steps of the noise reduction assembly are simplified.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchen appliances, in particular to a machine head and an integrated stove. Background Art

[0002] An integrated stove, also known as an environmentally friendly stove or integrated eco-friendly stove, is a kitchen appliance that combines multiple functions, including a range hood, gas stove, and disinfection cabinet. It offers advantages such as space saving, effective fume extraction, and energy conservation and environmental protection. An integrated stove typically consists of a frame and a head. The frame houses the gas stove, disinfection cabinet, and bellows. The top of the frame forms the cooktop, while the head also serves as a fume extractor: an air inlet is located on the head, and a fan acts as the extraction power module, drawing fumes through the inlet, through the air duct within the head, and into the bellows for discharge outdoors.

[0003] Among them, a noise reduction structure is provided in the air duct, and the noise reduction component consists of a first flow guide member and a sound absorbing member. The installation of the first flow guide member and the sound absorbing member is relatively inconvenient.

[0004] Therefore, it is urgent to design a head and an integrated stove to solve the above problems. Utility Model Content

[0005] One purpose of the utility model is to provide a machine head, in which the installation of the noise reduction component is more convenient.

[0006] Another object of the present invention is to provide an integrated stove that is quicker and more convenient to assemble.

[0007] To achieve this purpose, the present invention adopts the following technical solutions:

[0008] A handpiece, wherein at least a portion of an air duct is formed inside the handpiece, the handpiece includes a noise reduction assembly, the noise reduction assembly includes a first flow guide and a sound absorbing member, the first flow guide is formed with a receiving cavity and has a plurality of through holes;

[0009] The first air guide is connected to the side wall of the air duct, the sound absorbing member is accommodated in the accommodation cavity, and the sound absorbing member is located between the first air guide and the side wall of the air duct to form at least a partial sound cavity with the first air guide.

[0010] As an optional solution, the first flow guide member includes:

[0011] The guide portion is provided with a plurality of through holes;

[0012] The flange portion is connected to at least the two sides and the bottom side of the guide portion. The flange portion and the guide portion are arranged at an angle to form at least a portion of the accommodating cavity.

[0013] As an optional solution, at least part of the flange portion is L-shaped.

[0014] As an optional solution, the first air guide further includes a first connecting portion, at least two opposite sides of the air guide are connected to the first connecting portion, and the first connecting portion is connected to the side wall of the air duct via a connecting member.

[0015] As an optional solution, the first connecting portion is protruded from the air guide portion, the connecting member is U-shaped, one side of the connecting member is connected to the side wall of the air duct, and the other side of the connecting member is connected to the first connecting portion.

[0016] As an optional solution, the nose further includes a panel assembly, the panel assembly including a front panel and a rear panel, the front panel and the rear panel being connected to enclose at least a portion of the air duct, the first side panel of the front panel being opposite to the rear panel and spaced apart;

[0017] The above-mentioned first side panel and the above-mentioned rear panel are both correspondingly provided with the above-mentioned noise reduction assembly. The above-mentioned first air guide member in the above-mentioned noise reduction assembly corresponding to the above-mentioned rear panel is defined as the rear air guide member. An air inlet member is provided at the top of the above-mentioned air duct, and a second air guide member is provided beside the bottom of the above-mentioned air inlet member. The above-mentioned second air guide member is located on the top of the above-mentioned rear air guide member and is configured to guide the airflow from the air inlet member to the above-mentioned rear air guide member.

[0018] As an optional solution, the rear side of the air inlet member is connected to the rear plate, and the head further includes an air inlet connector, which is fixedly connected to the first side plate.

[0019] As an optional solution, the first air guide member in the noise reduction assembly corresponding to the first side panel is defined as a front air guide member, and the top of the front air guide member is connected to the air inlet connector.

[0020] As an optional solution, the air inlet connector includes:

[0021] a second connecting portion extending in the left-right direction, the air inlet member being connected to the second connecting portion, and the top of the front air guide being connected to the second connecting portion;

[0022] The bonding portion is connected to the side of the second connection portion facing away from the air inlet member. The bonding portion is L-shaped so that the second connection portion is spaced apart from the first side plate. One side of the bonding portion is bonded to the first side plate.

[0023] The integrated stove comprises the above-mentioned machine head.

[0024] The beneficial effects of the present invention are:

[0025] The utility model provides a head. When the airflow passes through the air duct, the first guide member has a certain perforation rate due to the multiple through holes on the first guide member. According to the noise reduction principle of the perforated plate lined with sound-absorbing material, the calculation method of the working frequency of the sound-absorbing member is: L: thickness of air layer (thickness of acoustic cavity); t: plate thickness; d: hole diameter; c: speed of sound; P: perforation rate. Since an acoustic cavity is formed between the first air guide and the sound absorbing member, after calculation, f is made to fall within the frequency range generated by the head, and the noise reduction effect is the best. The combined use of the sound absorbing member and the acoustic cavity can superimpose the noise reduction effect, effectively reducing the noise in the head due to airflow agitation or due to the noise of the fan itself transmitted to the head position. On this basis, due to the setting of the accommodating cavity, when installing the sound absorbing member, first install the sound absorbing member into the accommodating cavity, and then install the first air guide member on the corresponding air duct side wall. For the sound absorbing member, no additional installation parts are required, which simplifies the installation steps of the noise reduction component.

[0026] The utility model also provides a machine head, which adopts the noise reduction component to make the installation of the sound absorbing part more convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is an exploded view of the handpiece provided by an embodiment of the present utility model;

[0028] Figure 2 This is a structural schematic diagram of the front air guide provided by an embodiment of the present utility model when viewed from a direction away from the air duct;

[0029] Figure 3 This is a partial structural diagram of the first flow guide and the sound absorbing member provided in an embodiment of the present utility model;

[0030] Figure 4 This is a cross-sectional view of the nose of the machine provided by an embodiment of the present utility model from a top-down perspective;

[0031] Figure 5 yes Figure 4 Enlarged view of point A in the middle;

[0032] Figure 6 This is a schematic structural diagram of the rear air guide provided by an embodiment of the present invention in the direction of one side of the air duct.

[0033] In the picture:

[0034] 10. Front panel; 11. First side panel; 12. Second side panel;

[0035] 20. Rear panel; 30. Air duct;

[0036] 40. Noise reduction assembly; 41. First flow guide; 411. Flow guide portion; 4111. Through hole; 4112. Wave crest; 4113. Wave trough; 412. Flanged portion; 414. First connecting portion; 413. Accommodating cavity;

[0037] 42. Sound absorbing parts; 43. Sound cavity; 431. Sub-sound cavity;

[0038] 50. Air inlet member; 60. Second air guide member; 70. Base; 80. Air inlet connector; 81. Second connector; 82. Adhesive portion; 90. Connector. DETAILED DESCRIPTION

[0039] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.

[0040] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0041] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0042] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are used to refer to positions or locations based on the positions or locations shown in the accompanying drawings. These terms are intended solely to facilitate description and simplify operation, and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0043] This embodiment provides a head that can reduce the noise of at least part of the air duct 30 formed in the head, and at the same time, the installation of the noise reduction component 40 is more convenient, such as Figure 1 and Figure 2 As shown, the noise reduction component 40 includes a first air guide 41 and a sound absorbing member 42. The first air guide 41 is formed with a accommodating cavity 413 and has a plurality of through holes 4111. The first air guide 41 is connected to the side wall of the air duct 30. The sound absorbing member 42 is accommodated in the accommodating cavity 413 and is located between the first air guide 41 and the side wall of the air duct 30 to form at least a partial sound cavity 43 between the first air guide 41 and the first air guide 41.

[0044] When the airflow passes through the air duct 30, the first guide member 41 has a certain perforation rate due to the multiple through holes 4111 formed on the first guide member 41. According to the noise reduction principle of the perforated plate lined with sound-absorbing material, the calculation method of the working frequency of the sound-absorbing member 42 is: L: thickness of air layer (sound cavity thickness); t: plate thickness; d: hole diameter; c: sound speed; P: perforation rate. Since a sound cavity 43 is formed between the first air guide 41 and the sound absorbing member 42, after calculation, f falls within the frequency range generated by the head, and the noise reduction effect is the best. The combined use of the sound absorbing member 42 and the sound cavity 43 can superimpose the noise reduction effect, effectively reducing the noise in the head due to airflow agitation or due to the noise of the fan itself transmitted to the head position. On this basis, due to the setting of the accommodating cavity 413, when installing the sound absorbing member 42, the sound absorbing member 42 is first installed in the accommodating cavity 413, and then the first air guide member 41 is installed on the corresponding side wall of the air duct 30. For the sound absorbing member 42, no additional installation parts are required, which simplifies the installation steps of the noise reduction component 40 and makes the installation of the head faster.

[0045] Alternatively, as Figure 1 As shown, the nose of the aircraft includes a panel assembly (not numbered) and the aforementioned noise reduction assembly 40. The panel assembly encloses at least a portion of the air duct 30. Specifically, the panel assembly includes a front panel 10 and a rear panel 20 connected to each other, forming the air duct 30 therebetween. The sidewall of the air duct 30 can also be understood as the sidewall of the front panel 10 or the rear panel 20 facing the air duct 30.

[0046] In this embodiment, Figure 1 As shown, the first side panel 11 of the front panel 10 is opposite to and spaced apart from the rear panel 20; the first side panel 11 and the rear panel 20 are both correspondingly provided with the above-mentioned noise reduction component 40. In other embodiments, the noise reduction component 40 can also be provided on other sides of the air duct 30, which is not limited here.

[0047] Alternatively, as Figure 1As shown, the front panel 10 further includes two second side panels 12 , which are respectively connected to two opposite sides of the first side panel 11 , and the two second side panels 12 are connected to the rear panel 20 to enclose and form an air duct 30 .

[0048] The first air guide 41 in the noise reduction assembly 40 corresponding to the first side plate 11 is defined as a front air guide. Figure 2 In the following, the structure of the first flow guide 41 is exemplarily described by taking the front flow guide as an example. Figure 2 As shown, the first flow guide 41 includes a flow guide portion 411 and a flange portion 412, and the flow guide portion 411 has a plurality of through holes 4111; at least the two sides and the bottom side of the flow guide portion 411 are connected with the flange portions 412, and the flange portions 412 are arranged at an angle to the flow guide portion 411 to form a receiving cavity 413. It can be understood that several flange portions 412 and the flow guide portion 411 together form the receiving cavity 413, and at least the two sides and the bottom side of the flow guide portion 411 are connected with the flange portions 412, which ensures that after the sound absorbing component 42 is placed in the receiving cavity 413, both sides and the bottom are limited to prevent the sound absorbing component 42 from falling.

[0049] Furthermore, at least part of the flange portion 412 is L-shaped. Through the above arrangement, one side of the L-shaped flange portion 412 serves as a position limiter on the left and right sides, and the other side and the guide portion 411 together serve to limit the sound absorbing member 42 in the front-to-back direction.

[0050] Alternatively, as Figure 2 As shown, the first air guide 41 further includes a first connecting portion 414. The first connecting portion 414 is connected to at least two opposing sides of the air guide 411. The first connecting portion 414 is connected to the side wall of the air duct 30 via the connecting member 90. Specifically, the first connecting portion 414 defines a through hole 4111 for a locking member to pass through, thereby securing the first connecting portion 414 to the side wall of the air duct 30.

[0051] Alternatively, see Figure 1 and Figure 2 The first connecting portion 414 is connected to the side wall of the air duct 30 via a connecting member 90. Specifically, the connecting member 90 is U-shaped. A locking member is sequentially passed through the first connecting portion 414 and one side wall of the connecting member 90, and then secured by a locking member. The other side wall of the connecting member 90 is connected to the side wall of the air duct 30. The locking member can be a screw, and the locking member can be a nut. The first air guide 41 has connecting members 90 on both sides. The connecting member 90 and the first air guide 41 can be connected externally before the connecting member 90 is connected to the side wall of the air duct 30, avoiding installation space constraints.

[0052] Alternatively, as Figure 2 As shown, the first connection portion 414 is protruded from the guide portion 411 to facilitate the connection of the first connection portion 414 .

[0053] Optionally, several flange portions 412 and the first connecting portion 414 are formed by bending sheet metal. Specifically, a notch is cut at a position corresponding to the first connecting portion 414, and then the flange portion 412 is flanged. The first connecting portion 414 is not bent and is in the same plane as the planar portion of the guide portion 411 and protrudes from the guide portion 411.

[0054] Alternatively, as Figure 2 and Figure 3 The cross-section of the guide portion 411 is shown as wavy. With this arrangement, the guide portion 411 forms approximately triangular convex and concave surfaces, allowing airflow to flow along the direction of the wave crests 4112 or troughs 4113, thereby regularizing the airflow within the air duct 30, thereby reducing the amplitude of airflow fluctuations and reducing noise caused by gas flow. It is understood that the guide portion 411 is flat on its periphery, while the central portion is wavy to guide the airflow.

[0055] Alternatively, as Figure 3 As shown, the plurality of troughs 4113 of the first flow guide 41 and the sound absorbing member 42 are arranged in abutment with each other to form a plurality of sub-cavities 431. With the above arrangement, the cavity thickness of each sub-cavity 431 is in a variable value, which can achieve a wide frequency noise reduction effect.

[0056] Alternatively, as Figure 4 and Figure 5 As shown, in the two opposing first flow guides 41, the crests 412 of one are aligned with the crests 412 of the other, and the troughs 413 of one are aligned with the troughs 413 of the other. It is understood that if the alignment is offset, the regular directions of the airflow on both sides will be offset, which may easily cause turbulence. This arrangement ensures that the regular airflow on both sides is consistent, thereby improving the stability of the gas flow.

[0057] Optionally, the angle between two adjacent inclined surfaces forming the wave on the first flow guide 41 ranges from 90° to 120°. This arrangement effectively regularizes the airflow while preventing a narrow angle from excessively dividing the airflow and affecting the gas flow rate. It should be understood that the two adjacent inclined surfaces refer to the two inclined surfaces that form a wave crest or a wave trough.

[0058] like Figure 6 As shown, the first air guide 41 in the noise reduction assembly 40 corresponding to the rear plate 20 is defined as the rear air guide. The rear air guide has the same general structure as the front air guide, and the similarities are not repeated here.

[0059] Alternatively, as Figure 1 and Figure 6As shown, an air inlet 50 is disposed at the top of the air duct 30, and a second air guide 60 is disposed adjacent to the bottom of the air inlet 50. The second air guide 60 is located at the top of the rear air guide and is configured to guide the airflow from the air inlet 50 to the rear air guide. The second air guide 60 is integral with the first air guide 41. It is understood that without the second air guide 60, airflow entering the air duct 30 from the air inlet 50 would generate vortices on the side of the rear plate 20 and above the corresponding noise reduction assembly 40. With the second air guide 60, the Coanda effect (coanda effect) ensures that the airflow adheres to the second air guide 60 and smoothly transitions to the noise reduction assembly 40 on the rear plate 20. Furthermore, the integral arrangement of the second air guide 60 and the rear air guide reduces the number of parts required. Furthermore, the top of the second air guide 60 can be connected to the air inlet 50, thereby assisting in securing the rear air guide. Of course, two connecting members 90 are also provided on the left and right sides of the rear air guide member, which will not be described in detail here.

[0060] Alternatively, as Figure 1 As shown, the rear side of the air inlet member 50 is connected to the rear panel 20. The head also includes an air inlet connector 80, which is adhesively connected to the first side panel 11. The front side of the air inlet member 50 is connected to the air inlet connector 80. Through this arrangement, the adhesive connection method avoids the need for additional fixings between the air inlet connector 80 and the first side panel 11, which would damage the appearance of the first side panel 11, while also serving to secure the air inlet member 50. The air inlet connector 80 and the air inlet member 50 can also be connected using screws and nuts, which is not limited here.

[0061] Alternatively, as Figure 1 and Figure 2 As shown, the top of the front deflector is connected to the air inlet connector 80. In other words, the air inlet connector 80 also plays a role in assisting the fixing of the front deflector, preventing the top of the front deflector from being directly connected to the first side panel 11 and affecting the aesthetics of the first side panel 11.

[0062] Alternatively, as Figure 1 As shown, the air inlet connector 80 includes a second connecting portion 81 and an adhesive portion 82. The second connecting portion 81 extends in the left-right direction, and the tops of the air inlet member 50 and the front deflector are both connected to the second connecting portion 81. The adhesive portion 82 is connected to the side of the second connecting portion 81 facing away from the air inlet member 50. The adhesive portion 82 is L-shaped, so that the second connecting portion 81 is spaced apart from the first side panel 11, and one side of the adhesive portion 82 is bonded to the first side panel 11. This arrangement provides a larger mounting surface for the connection between the air inlet member 50 and the top of the front deflector, facilitating operation. The adhesive portion 82 ensures that a certain gap exists between the air inlet connector 80 and the first side panel 11 after installation, which can accommodate fixings such as screws or nuts.

[0063] Alternatively, as Figure 1 As shown, the machine head also includes a base 70, and the lower sides of the front panel 10 and the rear panel 20 are connected to the base 70, and the base 70 serves to support the entire machine head.

[0064] Alternatively, as Figure 1 As shown, the base 70 is mounted on a frame (not shown). Under the action of the fan, air flows in from the air inlet member 50, flows out from the base 70, and enters the fan assembly mounted on the frame.

[0065] This embodiment also provides an integrated stove, which includes the above-mentioned head. By adopting the above-mentioned head, the integrated stove can install parts more quickly and has a better noise reduction effect in the air duct 30.

[0066] Obviously, the above-described embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the manner in which the present invention is to be implemented. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A head, wherein at least a portion of an air duct (30) is formed inside the head, characterized in that: The nose comprises a noise reduction component (40), the noise reduction component (40) comprises a first flow guide (41) and a sound absorbing component (42), the first flow guide (41) is formed with a receiving cavity (413) and has a plurality of through holes (4111); The first flow guide (41) is connected to the side wall of the air duct (30), and the sound absorbing member (42) is accommodated in the accommodating cavity (413). The sound absorbing member (42) is located between the first flow guide (41) and the side wall of the air duct (30) to form at least a partial sound cavity (43) between the first flow guide (41) and the sound absorbing member (42).

2. The handpiece according to claim 1, wherein: The first flow guide (41) comprises: The guide portion (411) is provided with a plurality of through holes (4111); A flange portion (412), at least the two sides and the bottom side of the guide portion (411) are connected with the flange portion (412), and the flange portion (412) and the guide portion (411) are arranged at an angle to form at least part of the accommodating cavity (413).

3. The handpiece according to claim 2, wherein: At least a portion of the flange portion (412) is arranged in an L-shape.

4. The handpiece according to claim 2, wherein: The first air guide (41) further comprises a first connecting portion (414), at least two opposite sides of the air guide (411) are connected to the first connecting portion (414), and the first connecting portion (414) is connected to the side wall of the air duct (30) via a connecting member (90).

5. The handpiece according to claim 4, characterized in that: The first connecting portion (414) is protruding from the air guide portion (411), the connecting member (90) is U-shaped, one side of the connecting member (90) is connected to the side wall of the air duct (30), and the other side of the connecting member (90) is connected to the first connecting portion (414).

6. The handpiece according to claim 5, characterized in that: The engine head further comprises a panel assembly, the panel assembly comprising a front panel (10) and a rear panel (20), the front panel (10) and the rear panel (20) being connected to enclose at least a portion of the air duct (30), and a first side panel (11) of the front panel (10) being opposite to and spaced from the rear panel (20); The first side panel (11) and the rear panel (20) are both provided with the noise reduction assembly (40) in correspondence thereto, and the first air guide (41) in the noise reduction assembly (40) corresponding to the rear panel (20) is defined as a rear air guide. An air inlet (50) is provided at the top of the air duct (30), and a second air guide (60) is provided beside the bottom of the air inlet (50). The second air guide (60) is located at the top of the rear air guide and is configured to guide airflow from the air inlet (50) to the rear air guide.

7. The handpiece according to claim 6, characterized in that: The rear side of the air inlet member (50) is connected to the rear plate (20), and the head further comprises an air inlet connector (80), and the air inlet connector (80) is fixedly connected to the first side plate (11).

8. The handpiece according to claim 7, wherein: The first air guide (41) in the noise reduction assembly (40) corresponding to the first side panel (11) is defined as a front air guide, and the top of the front air guide is connected to the air inlet connector (80).

9. The handpiece according to claim 8, characterized in that: The air inlet connector (80) comprises: A second connecting portion (81) extends in the left-right direction, the air inlet member (50) is connected to the second connecting portion (81), and the top of the front air guide member is connected to the second connecting portion (81); The bonding portion (82) is connected to the side of the second connection portion (81) facing away from the air inlet member (50), and the bonding portion (82) is L-shaped so that the second connection portion (81) and the first side plate (11) are spaced apart, and one side of the bonding portion (82) is bonded to the first side plate (11).

10. Integrated stove, characterized in that: Comprising the nose as described in any one of claims 1-9.

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