Noise reduction box for cooking utensil

Abstract

The noise reduction box is provided with a matching part, the matching part is matched with the upper surface of a pot cover to form a containing cabin used for containing a heavy hammer, the matching part is provided with a noise reduction concave cavity which is concave upwards, the matching part is provided with an air passing opening in the periphery of the noise reduction concave cavity, and the noise reduction concave cavity corresponds to an air outlet in the top of the heavy hammer. At least part of airflow in the containing cabin flows through the noise reduction cavity and then flows out of the air passing opening. The air flow sprayed out of the air outlet of the heavy hammer can upwards flow into the noise reduction concave cavity, the noise reduction concave cavity can buffer the air flow and reduce the kinetic energy of the air flow, and can enable the air flow to flow back and forth downwards and then to be dispersed and flow back into the containing cabin, so that the gathered air flow in the noise reduction concave cavity flows in a dispersed mode, and the noise reduction effect is improved. And the airflow with small flow is divided into a plurality of strands of airflow to flow towards an air passing port on the outer side and flows out from the air passing port. Therefore, noise generated in the airflow flowing process is greatly reduced, and the noise reduction effect and the use experience are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of cooking utensils, and in particular relates to a noise reduction box for cooking utensils. Background Art

[0002] In some cooking appliances, such as electric rice cookers, especially electric pressure cookers, a noise reduction box is provided at the exhaust valve of the pot cover, and the noise reduction box cover is provided outside the exhaust valve (such as a heavy hammer). The existing noise reduction box mainly serves to shield the exhaust valve, improve the overall appearance of the cooking appliance, and guide the high-temperature gas to be discharged to prevent the high-temperature gas from scalding the user.

[0003] However, the noise reduction effect of the noise reduction box is poor. When the cooking appliance is exhausting, the airflow in the pot generates loud noise when it is discharged through the exhaust valve, and the user experience is poor.

[0004] Some noise reduction boxes have an internal structural design that reduces noise by lengthening the airflow path. However, during the exhaust process, a large amount of gas in the pot converges and sprays out from the exhaust valve. The air volume is extremely large and the flow rate is fast. By lengthening the air path, the flow rate of the air flow can only be reduced to a certain extent. The large amount of airflow that converges together will still make a lot of noise during the flow, resulting in the noise reduction effect of the noise reduction box being unsatisfactory, and the user can still hear a lot of noise from the outside. Utility Model Content

[0005] The utility model provides a noise reduction box for a cooking utensil, so as to solve the problem that the noise reduction effect of the existing exhaust noise reduction box is poor, and the cooking utensil generates relatively large noise during exhaust, thus affecting the user experience.

[0006] The technical solution adopted by the utility model is:

[0007] A noise reduction box for a cooking utensil, the noise reduction box is fixed to the upper part of a pot cover, the noise reduction box is provided with a matching portion, the matching portion cooperates with the upper surface of the pot cover to form a accommodating chamber for accommodating a heavy hammer, the matching portion is provided with an upwardly recessed noise reduction cavity, the matching portion is provided with an air outlet on the outer periphery of the noise reduction cavity, the noise reduction cavity is arranged corresponding to the air outlet on the top of the heavy hammer, so that at least part of the airflow in the accommodating chamber flows through the noise reduction cavity and then flows out from the air outlet.

[0008] The noise reduction box for cooking utensils of the utility model also has the following additional technical features:

[0009] The matching portion is provided with a convex hump which is raised away from the accommodating cabin, and the convex hump surrounds a noise reduction cavity.

[0010] A matching convex rib is arranged on one side of the matching portion facing the pot cover, and the matching convex rib surrounds a noise reduction cavity.

[0011] The convex ribs are arranged in a plurality to enclose a plurality of noise reduction concave cavities, and the noise reduction concave cavities are arranged in an array.

[0012] A flow guiding transition surface for guiding the airflow at the noise reduction cavity to the air outlet is arranged on one side of the matching portion facing the accommodating compartment.

[0013] The noise reduction box also includes a partition located above the matching part, a noise reduction cabin is formed between the partition and the matching part, the air passage is connected to the noise reduction cabin, the partition is provided with a connecting port, and the air passage and the connecting port are staggered.

[0014] The noise reduction box also includes a top cover located above the partition, and an exhaust passage is formed between the top cover and the partition.

[0015] The partition is provided with a matching sink, and the groove wall on at least one side of the matching sink extends upward obliquely to form an air guiding slope. The top cover covers the matching sink, and the air guiding slope cooperates with the top cover to form an exhaust channel.

[0016] The noise reduction box includes a base, a cover body and a top cover. The base is fixed to the pot cover, the top wall of the base constitutes a matching part, the cover body is fixed above the base, the top wall of the cover body constitutes a partition part, and the top cover is fixed above the cover body.

[0017] The bottom of the noise reduction box is provided with an insertion protrusion for plugging and fixing with the pot cover. The noise reduction box extends in a long strip shape in a horizontal plane, and at least part of the periphery of the noise reduction box is provided with a gripping groove.

[0018] Due to the adoption of the above technical solution, the beneficial effects achieved by the utility model are as follows:

[0019] 1. In the utility model, after the noise reduction box is assembled on the pot cover, the matching part cooperates with the upper surface of the pot cover to form a storage compartment, and some parts of the exhaust valve on the pot cover, such as the weight, are accommodated in the storage compartment, so that the airflow in the pot will first enter the storage compartment after being ejected from the exhaust valve. The matching part is provided with an upwardly concave noise reduction cavity at the position corresponding to the weight outlet, so that the airflow ejected from the weight outlet will more likely flow upward into the noise reduction cavity. The noise reduction cavity is upwardly concave, so that it can not only buffer the airflow to a certain extent and reduce the kinetic energy of the airflow, but also the noise reduction cavity only has an opening for airflow to enter at the position corresponding to the weight below, and the other areas are closed, so that the airflow cannot be directly ejected upward from the noise reduction cavity, but after being buffered in the noise reduction cavity, it turns back and flows downward, and then disperses and flows back to the storage compartment from the opening below the noise reduction cavity, so that the airflow gathered together is dispersed, so that the gathered airflow at the noise reduction cavity is divided into multiple smaller airflows that are diverted to the outer air outlet and flow out from the air outlet. In this way, by setting up the noise reduction cavity, the airflow ejected from the air outlet of the heavy hammer can not only be buffered in the noise reduction cavity and change its flow direction, thereby extending the flow path of the airflow, but also the airflow can be dispersed into multiple small-flow airflows when flowing out of the noise reduction cavity, thereby greatly reducing the noise emitted during the flow of the airflow and improving the noise reduction effect and user experience.

[0020] 2. As a preferred embodiment of the present invention, the matching part is provided with a convex bulge that bulges away from the accommodating cabin, and the convex bulge surrounds a noise reduction cavity. The matching part bulges at the position corresponding to the air outlet of the weight to form a convex bulge. While forming the noise reduction cavity, it can also avoid the weight and the airflow ejected from the weight, which can not only avoid the interference between the matching part and the weight during the lifting process, resulting in a decrease in the exhaust efficiency of the weight, but also increase the distance between the top wall of the noise reduction cavity and the air outlet of the weight, reduce the impact force between the airflow and the top wall of the noise reduction cavity, avoid noise caused by violent collision of the airflow, and avoid turbulence, thereby improving the exhaust efficiency. After the airflow in the noise reduction cavity turns back and flows downward, it is naturally diverted at the opening of the noise reduction cavity and flows out from the air outlet.

[0021] 3. As a preferred embodiment of the present invention, the noise reduction box also includes a partition located above the matching portion, a noise reduction cabin is formed between the partition and the matching portion, an air port is connected to the noise reduction cabin, a connecting port is provided on the partition, and the air port and the connecting port are staggered. By designing the interior of the noise reduction box as a double-cabin structure, that is, arranging the noise reduction cabin above the accommodating cabin, the discharge path of the airflow in the noise reduction box is further lengthened, the kinetic energy and flow velocity of the airflow are further reduced, and the noise reduction effect is improved. In addition, the air port and the connecting port are staggered, so that the airflow will turn and collide multiple times during the discharge process, thereby greatly attenuating the kinetic energy and flow velocity of the airflow, and reducing the whistling sound generated during the flow of the airflow.

[0022] 4. As a preferred embodiment of the utility model, the partition is provided with a matching sink, and the groove wall of at least one side of the matching sink extends obliquely upward to form an air guide slope, and the top cover covers the matching sink, and the air guide slope cooperates with the top cover to form an exhaust channel. The air guide slope cooperates with the top cover to form an exhaust channel extending obliquely upward, so that the airflow is ejected from the noise reduction box at an oblique angle, which can avoid the exhaust being exhausted vertically upward, and the high-temperature airflow affecting other components above the cooking utensil, and the outlet direction of the exhaust channel can be set to the side away from the user operation (for example, the side where the operating handle or the operating panel is provided), so as to avoid the ejected high-temperature airflow affecting the user operation.

[0023] 5. As a preferred embodiment of the utility model, the noise reduction box includes a base, a cover and a top cover, the base is fixed to the pot cover, the top wall of the base constitutes a matching part, the cover is fixed above the base, the top wall of the cover constitutes a partition, and the top cover is fixed above the cover. In this embodiment, the base, the cover and the top cover are assembled to form a noise reduction box, which not only simplifies the structural complexity of each part and reduces the difficulty of processing, but also helps to realize the detachable design of each part of the noise reduction box, making it convenient for users to disassemble the noise reduction box for cleaning, reducing the difficulty of cleaning the noise reduction box and keeping the interior clean. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0025] Figure 1 This is a schematic diagram of the structure of a pot cover in one embodiment of the utility model;

[0026] Figure 2 for Figure 1 Structural explosion view of the middle noise reduction box;

[0027] Figure 3 It is a cross-sectional view of a portion of a pot cover according to an embodiment of the utility model, wherein arrows indicate the direction of air flow;

[0028] Figure 4 This is a structural schematic diagram of a base of a noise reduction box in one embodiment of the utility model;

[0029] Figure 5 It is a cross-sectional view of a noise reduction box in one embodiment of the utility model, wherein arrows indicate the direction of airflow;

[0030] Figure 6 This is a structural explosion view of a noise reduction box in one embodiment of the utility model;

[0031] Figure 7 It is a structural schematic diagram of a base of a noise reduction box in another embodiment of the utility model;

[0032] Figure 8 for Figure 7 A cross-sectional view of the middle base, wherein arrows indicate the direction of air flow;

[0033] Fig. 9 This is a schematic structural diagram of a cover body in one embodiment of the utility model;

[0034] Fig.10 for Fig. 9 A cross-sectional view of the middle cover body;

[0035] Fig.11 The figure is a schematic structural diagram of a top cover of a noise reduction box in one embodiment of the utility model.

[0036] in:

[0037] 1 noise reduction box; 11 base; 111 accommodating compartment; 12 cover; 121 partition; 122 noise reduction compartment; 123 communication port; 124 air guide slope; 125 limiting column; 126 matching sink; 13 top cover; 131 exhaust channel; 132 avoidance gap; 133 screw column; 14 matching part; 141 noise reduction cavity; 142 air outlet; 143 convex hull; 144 limiting hole; 145 matching convex rib; 146 flow guide transition surface; 15 plug-in protrusion; 16 holding groove;

[0038] 2 heavy hammers; 21 air outlets. DETAILED DESCRIPTION

[0039] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in the form of examples in conjunction with the accompanying drawings.

[0040] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0041] In addition, in the description of the present invention, it should be understood that the terms "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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 a limitation on the present invention.

[0042] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like 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, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] In the present utility model, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "implementation method", "example", "one embodiment", "example" or "specific example" 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. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0044] like Figures 1 to 3 As shown, a noise reduction box 1 for a cooking utensil is fixed to the upper part of a pot cover. The noise reduction box 1 is provided with a matching portion 14. The matching portion 14 cooperates with the upper surface of the pot cover to form a accommodating chamber 111 for accommodating a heavy hammer. The matching portion 14 is provided with an upwardly recessed noise reduction cavity 141. The matching portion 14 is provided with an air outlet 142 on the periphery of the noise reduction cavity 141. The noise reduction cavity 141 is arranged corresponding to the air outlet on the top of the heavy hammer, so that at least part of the airflow in the accommodating chamber 111 flows through the noise reduction cavity 141 and then flows out from the air outlet 142.

[0045] In the utility model, after the noise reduction box 1 is assembled on the pot cover, the matching part 14 cooperates with the upper surface of the pot cover to form a accommodating compartment 111. Some components of the exhaust valve on the pot cover, such as the heavy hammer 2, are accommodated in the accommodating compartment 111, so that the airflow in the pot will first enter the accommodating compartment 111 after being ejected from the exhaust valve. The matching part 14 is provided with an upwardly recessed noise reduction cavity 141 at the position corresponding to the air outlet 21 of the weight 2, so that the airflow ejected from the air outlet 21 of the weight 2 will flow more upward into the noise reduction cavity 141. The noise reduction cavity 141 is recessed upward, so it can not only buffer the airflow to a certain extent and reduce the kinetic energy of the airflow, but also the noise reduction cavity 141 has an opening for airflow to enter only at the position corresponding to the weight 2 at the bottom, and other areas are closed. Therefore, the airflow cannot be directly ejected upward from the noise reduction cavity 141, but after being buffered in the noise reduction cavity 141, it turns back and flows downward, and then disperses and flows back to the accommodating cabin 111 from the opening below the noise reduction cavity 141, so that the converged airflow is dispersed, and the converged airflow at the noise reduction cavity 141 is divided into multiple smaller flow airflows that are diverted to the outer air outlet 142 and flow out from the air outlet 142.

[0046] By setting up the noise reduction cavity 141, the airflow ejected from the air outlet 21 of the weight 2 can not only be buffered in the noise reduction cavity 141 and change its flow direction, thereby extending the flow path of the airflow, but also the airflow can be dispersed into multiple small-flow airflows when flowing out of the noise reduction cavity 141, thereby greatly reducing the noise generated during the flow of the airflow and improving the noise reduction effect and user experience.

[0047] It should be noted that, in the present invention, the noise reduction cavity 141 is arranged corresponding to the air outlet 21 of the heavy hammer 2, and the air outlet 142 is located on the outside of the noise reduction cavity 141. Most of the airflow ejected from the air outlet 21 can flow up into the noise reduction cavity 141, so it has a better noise reduction effect. However, the airflow flowing up from the edge area of ​​the accommodating cabin 111 may not pass through the noise reduction cavity 141, but directly flow up from the edge through the air outlet 142. However, the air flow of this part is relatively small. Therefore, the noise reduction box 1 of the present invention can still maintain a good noise reduction effect.

[0048] It should be noted that the utility model does not limit the internal structure of the noise reduction box 1. In one embodiment, the noise reduction box 1 is a single-cabin structure, that is, the noise reduction box 1 only has one cavity, the accommodating cabin 111. The airflow ejected from the air outlet 21 of the weight 2 passes through the noise reduction cavity 141 and is discharged to the outside through the air outlet 142 in the accommodating cabin 111.

[0049] In a preferred embodiment, Figure 3 As shown, the noise reduction box 1 has a double-cabin structure, that is, a noise reduction cabin 122 is arranged above the accommodating cabin 111 inside the noise reduction box 1. After the airflow in the accommodating cabin 111 flows back from the noise reduction cavity 141, it enters the noise reduction cabin 122 above through the air outlet 142, completes noise reduction again in the noise reduction cabin 122, and then is ejected from the noise reduction box 1.

[0050] In other embodiments, the noise reduction box 1 has a structure with more than two layers of chambers, that is, at least two layers of noise reduction chambers are provided above the accommodating cabin 111, so that the airflow undergoes multiple noise reduction processes in the multi-layer chambers of the noise reduction box 1 and then is ejected from the noise reduction box 1, thereby further improving the noise reduction effect.

[0051] In the present invention, the function of the noise reduction cavity 141 is to first buffer the airflow entering the noise reduction cavity 141, and then to divert the airflow in the noise reduction cavity 141 when it flows out of the noise reduction cavity 141. However, it should be noted that the present invention does not limit the formation method of the noise reduction cavity 141, which can be one of the following embodiments:

[0052] Implementation method 1: In this implementation method, Figure 4 , Figure 5 , Figure 6As shown, the mating portion 14 is provided with a convex hump 143 that bulges away from the accommodating compartment 111 , and the convex hump 143 encloses a noise reduction cavity 141 .

[0053] The mating portion 14 is raised at the position corresponding to the air outlet 21 of the weight 2 to form a convex bump 143. While forming the noise reduction cavity 141, it can also avoid the weight 2 and the airflow ejected from the weight 2, which can not only avoid the interference between the weight 2 and the mating portion 14 during the process of being lifted up, resulting in a decrease in the exhaust efficiency of the weight 2, but also increase the distance between the top wall of the noise reduction cavity 141 and the air outlet 21 of the weight 2, reduce the impact force between the airflow and the top wall of the noise reduction cavity 141, avoid noise caused by violent collision of the airflow, and avoid turbulence, thereby improving the exhaust efficiency. Figure 5 As shown, after the airflow in the noise reduction cavity 141 turns back and flows downward, it is naturally divided at the opening of the noise reduction cavity 141 and flows out from the air outlet 142 .

[0054] In this embodiment, the noise reduction cavity 141 is a cavity of a larger volume, which has a better buffering effect on the airflow. At the same time, when the airflow flows out from the opening toward the noise reduction cavity 141 to the accommodating compartment 111, it can be naturally diverted due to the larger space of the accommodating compartment 111.

[0055] Implementation method 2: In this implementation method, if Figure 7 , Figure 8 As shown, a mating convex rib 145 is provided on the side of the mating portion 14 facing the pot cover, and the mating convex rib 145 surrounds a noise reduction cavity 141. By providing the mating convex rib 145 protruding downward and extending so that the mating convex rib 145 surrounds the noise reduction cavity 141 which is recessed upward, the height of the accommodating chamber 111 can be reduced, and the overall height of the noise reduction box 1 can be reduced, which is conducive to miniaturization design.

[0056] Furthermore, if Figure 7 As shown, there are a plurality of mating ribs 145 to enclose a plurality of noise reduction cavities 141 , and each noise reduction cavities 141 is arranged in an array.

[0057] The multiple noise reduction cavities 141 arranged in an array can divert the airflow through their own structural characteristics, such as Figure 8 As shown, the airflow ejected from the air outlet 21 of the weight 2 is divided into multiple streams under the diversion effect of the convex rib 145 and enters multiple noise reduction cavities 141 respectively, is buffered in each noise reduction cavity 141, and flows out from each noise reduction cavity 141.

[0058] Specifically, Figure 7 As shown, each noise reduction cavity 141 is arranged in a honeycomb shape. Of course, the noise reduction cavity 141 can also be arranged in an array in other ways, which is not limited here.

[0059] In other embodiments, multiple areas of the matching portion 14 may be recessed upward to form noise reduction cavities 141 , and matching ribs 145 may be formed between the noise reduction cavities 141 .

[0060] As a preferred embodiment of the present invention, Figure 8 As shown, a flow guiding transition surface 146 for guiding the airflow at the noise reduction cavity 141 to the air outlet 142 is provided on one side of the matching portion 14 facing the accommodating chamber 111 .

[0061] The guide transition surface 146 can guide the airflow after it flows out of the noise reduction cavity 141, so that it flows along the guide transition surface 146 to the air outlet 142, making the turning of the airflow smoother, ensuring the exhaust efficiency while avoiding the collision of multiple airflows and turbulence in the accommodation cabin 111.

[0062] Specifically, Figure 8 As shown, the mating portion 14 is a curved surface structure with a low center and high ends, the noise reduction cavity 141 is arranged in the central area of ​​the mating portion 14, and the air outlet 142 is arranged in the edge area of ​​the mating portion 14, so that the curved surface of the mating portion 14 constitutes a flow guiding transition surface 146. In other embodiments, a flow guiding transition surface 146, such as a curved surface, a slope, etc., may also be separately arranged between the noise reduction cavity 141 and the air outlet 142, which is not limited here.

[0063] In a preferred embodiment, Figure 3 , Fig. 9 , Fig.10 As shown, the noise reduction box 1 also includes a partition 121 located above the matching portion 14, a noise reduction chamber 122 is formed between the partition 121 and the matching portion 14, an air port 142 is connected to the noise reduction chamber 122, a connecting port 123 is opened in the partition 121, and the air port 142 and the connecting port 123 are staggered.

[0064] By designing the interior of the noise reduction box 1 as a double-cabin structure, that is, setting the noise reduction cabin 122 above the accommodating cabin 111, the path of the airflow discharge in the noise reduction box 1 is further lengthened, the kinetic energy and flow velocity of the airflow are further reduced, and the noise reduction effect is improved. In addition, the air outlet 142 and the connecting port 123 are staggered, so that the airflow will turn and collide multiple times during the discharge process, thereby greatly attenuating the kinetic energy and flow velocity of the airflow and reducing the whistling sound generated during the flow of the airflow.

[0065] Specifically, Figure 3 , Figure 4 , Figure 7 , Fig. 9As shown, the air port 142 is arranged at the edge area of ​​the matching portion 14, and the connecting port 123 is arranged at the central area of ​​the partition portion 121, so that the air port 142 is at the edge of the internal chamber of the noise reduction box 1, and the connecting port 123 is at the center of the internal chamber of the noise reduction box 1. The airflow gushing out of the air outlet 21 of the weight 2 first enters the noise reduction cavity 141 upward, then turns back downward in the noise reduction cavity 141, and diffuses laterally in the accommodating chamber 111, flows upward from the edge of the noise reduction chamber 122 into the noise reduction chamber 122 through the air port 142, and then flows out from the central area of ​​the noise reduction chamber 122 through the connecting port 123.

[0066] Furthermore, if Figure 3 , Fig.11 As shown, the noise reduction box 1 further includes a top cover 13 located above the partition 121, and an exhaust passage 131 is formed between the top cover 13 and the partition 121. The airflow discharged from the weight 2 passes through the accommodating chamber 111, the noise reduction chamber 122 and the exhaust passage 131 in sequence and then exits the noise reduction box 1.

[0067] Specifically, Figure 3 , Fig.10 As shown, the partition 121 is provided with a matching groove 126 , and the groove wall on at least one side of the matching groove 126 extends upwardly obliquely to form an air guiding slope 124 . The top cover 13 covers the matching groove 126 , and the air guiding slope 124 cooperates with the top cover 13 to form an exhaust channel 131 .

[0068] The top cover 13 closes the notch of the matching sink 126, so that the airflow flowing into the matching sink 126 will not flow out directly upward, but will collide with the top cover 13 and turn, thereby further extending the airflow path and reducing exhaust noise.

[0069] The air guide slope 124 cooperates with the top cover 13 to form an exhaust channel 131 extending obliquely upward, so that the airflow is ejected from the noise reduction box 1 at an inclined angle, which can avoid vertically upward exhaust and the high-temperature airflow from affecting other components above the cooking appliance. In addition, the outlet direction of the exhaust channel 131 can be set to the side away from the user operation (for example, the side with the operating handle or the operating panel), so as to avoid the ejected high-temperature airflow from affecting the user operation.

[0070] Specifically, Fig.11 As shown, a relief notch 132 is provided on one side of the top cover 13 corresponding to the air guiding inclined surface 124 , so that the relief notch 132 cooperates with the air guiding inclined surface 124 to form an exhaust passage 131 .

[0071] Preferably, if Figure 2 , Figure 3 , Figure 6As shown, the noise reduction box 1 includes a base 11, a cover 12 and a top cover 13. The base 11 is fixed to the pot cover, the top wall of the base 11 constitutes a matching portion 14, the cover 12 is fixed above the base 11, the top wall of the cover 12 constitutes a partition 121, and the top cover 13 is fixed above the cover 12.

[0072] In the present embodiment, the base 11, the cover body 12 and the top cover 13 are assembled to form the noise reduction box 1, which not only simplifies the structural complexity of each part and reduces the difficulty of processing, but also helps to realize the detachable design of each part of the noise reduction box 1, making it convenient for users to disassemble the noise reduction box 1 for cleaning, reducing the difficulty of cleaning the noise reduction box 1 and keeping the interior clean.

[0073] In one embodiment, if Figure 4 , Figure 7 , Fig. 9 , Fig.10 , Fig.11 As shown, the mating portion 14 is provided with a limiting hole 144, and the cover body 12 is provided with a limiting column 125 at the partition 121 corresponding to the limiting hole 144, so that the two can be plugged and positioned, and a sealing member is provided at the edge of the limiting hole 144, and the sealing member is squeezed by the limiting column 125 to achieve fixation and sealing. The top cover 13 is provided with a screw column 133, which is fastened to the cover body 12 by fasteners such as screws. An arc-shaped connecting block is provided at the connection between the screw column 133 and the top cover 13 to avoid shrinkage during the injection molding process. Preferably, a sealing ring is also provided between the edge of the cover body 12 and the edge of the base 11 to ensure the sealing of the noise reduction cabin 122.

[0074] Preferably, the limiting hole 144, the limiting column 125 and the screw column 133 are all arranged on the same side of the vertical center axis or the horizontal center axis of the noise reduction box 1 to prevent mistakes during assembly and limit the installation direction to be unique.

[0075] As a preferred embodiment, Figure 3 , Figure 6 , Figure 8 As shown, the bottom of the noise reduction box 1 is provided with an insertion protrusion 15 for plugging and fixing with the pot cover, the noise reduction box 1 extends in a long strip shape in the horizontal plane, and a gripping groove 16 is provided on at least part of the periphery of the noise reduction box 1.

[0076] The connection between the noise reduction box 1 and the pot cover is achieved by plugging, which makes the assembly and disassembly of the noise reduction box 1 simpler and more convenient, and the user's operation is faster. Specifically, the plug-in protrusion 15 is set on one side of the noise reduction box 1 to limit the installation direction of the noise reduction box 1. At the same time, the noise reduction box 1 extends into a long strip, which not only improves the overall appearance, but also enables the user to get a better feel when holding it. The gripping groove 16 makes it more convenient for the user to hold and operate, reduces the probability of the noise reduction box 1 slipping off the user's hand, and improves the user experience.

[0077] The parts not described in the present invention can be realized by adopting or drawing on the existing technology.

[0078] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0079] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.

Claims

1. A noise reduction box for a cooking utensil, the noise reduction box being fixed to the upper part of a pot cover, characterized in that: The noise reduction box is provided with a matching part, and the matching part cooperates with the upper surface of the pot cover to form a accommodating chamber for accommodating the heavy hammer. The matching part is provided with an upwardly recessed noise reduction cavity, and the matching part is provided with an air outlet on the outer periphery of the noise reduction cavity. The noise reduction cavity is arranged corresponding to the air outlet on the top of the heavy hammer, so that at least part of the airflow in the accommodating chamber flows through the noise reduction cavity and then flows out from the air outlet.

2. The noise reduction box for cooking utensils according to claim 1, characterized in that: The matching portion is provided with a convex hump raised toward and away from the accommodating cabin, and the convex hump surrounds the noise reduction cavity.

3. The noise reduction box for a cooking appliance according to claim 1, characterized in that: A matching convex rib is arranged on one side of the matching portion facing the pot cover, and the matching convex rib surrounds the noise reduction cavity.

4. The noise reduction box for a cooking appliance according to claim 3, characterized in that: The matching ribs are multiple to enclose a plurality of noise reduction cavities, and the noise reduction cavities are arranged in an array.

5. The noise reduction box for a cooking appliance according to claim 1, characterized in that: A flow guiding transition surface for guiding the airflow at the noise reduction cavity to the air outlet is arranged on a side of the matching portion facing the accommodating chamber.

6. The noise reduction box for a cooking appliance according to claim 1, characterized in that: The noise reduction box also includes a partition located above the matching portion, a noise reduction cabin is formed between the partition and the matching portion, the air passage is connected to the noise reduction cabin, the partition is provided with a connecting port, and the air passage and the connecting port are staggered.

7. The noise reduction box for a cooking appliance according to claim 6, characterized in that: The noise reduction box further includes a top cover located above the partition, and an exhaust passage is formed between the top cover and the partition.

8. The noise reduction box for a cooking appliance according to claim 7, characterized in that: The partition is provided with a matching groove, and the groove wall on at least one side of the matching groove extends upward obliquely to form an air guiding slope. The top cover covers the matching groove, and the air guiding slope cooperates with the top cover to form the exhaust channel.

9. The noise reduction box for a cooking appliance according to claim 6, characterized in that: The noise reduction box includes a base, a cover and a top cover, the base is fixed to the pot cover, the top wall of the base constitutes the matching part, the cover is fixed above the base, the top wall of the cover constitutes the partition, and the top cover is fixed above the cover.

10. The noise reduction box for a cooking appliance according to claim 1, characterized in that: The bottom of the noise reduction box is provided with an insertion protrusion for plugging and fixing with the pot cover. The noise reduction box extends in a horizontal plane in a long strip shape, and at least a part of the periphery of the noise reduction box is provided with a gripping groove.

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