Exhaust and noise reduction structure of steaming oven

Abstract

The utility model discloses an exhaust noise reduction structure of a steaming oven, which comprises an exhaust pipeline arranged on the side wall of the steaming oven, an air inlet and an air outlet are arranged in the steaming oven, one end of the exhaust pipeline is communicated with the air outlet, and the other end of the exhaust pipeline is communicated with the outside; an annular edge protruding inwards is arranged in the exhaust pipeline, the annular edge extends towards the end, away from the exhaust port, of the exhaust pipeline to form a noise reduction part with an opening in one end, the noise reduction part is of a cylindrical structure with a cavity inside, and the opening of the noise reduction part is flush with the annular edge. A plurality of through holes are formed in the side wall of the silencing part; gas enters the exhaust pipeline through the exhaust port and enters the cavity of the silencing part through the opening of the silencing part, and the gas in the cavity enters the exhaust pipeline through the through hole and is exhausted to the outside. The silencing part is arranged in the exhaust pipeline, the gas flow rate in the exhaust pipeline is reduced, the silencing effect is achieved, the structural design is simple, and blasting noise generated during rapid exhaust is avoided.

Description

Technical Field

[0001] This utility model belongs to the field of steam oven technology, specifically relating to an exhaust and noise reduction structure for a steam oven. Background Technology

[0002] Steam ovens, as multifunctional cooking appliances in modern kitchens, integrate steaming, baking, defrosting, and fermentation, effectively reducing kitchen space usage. However, during high-temperature cooking, steam ovens generate a large amount of steam and heat, which needs to be released through exhaust pipes. This process, due to the flow and pressure changes of steam, often produces considerable noise. The noise generated by steam ovens during cooking mainly comes from the airflow noise during steam exhaust, the noise of internal mechanical operation, and the noise caused by physical phenomena such as thermal expansion and contraction. This noise not only affects the user experience but may also disturb the surrounding environment and people.

[0003] To address noise issues in the exhaust pipes of steam ovens, silencing technology has been widely adopted. Existing silencing technologies primarily reduce noise propagation and intensity through acoustic principles such as absorption, reflection, and interference. Installing a silencing device in the exhaust pipes of a steam oven can effectively absorb and reflect sound waves, thereby reducing noise pollution. However, designing silencing devices based on absorption and reflection principles, especially for the explosive noise generated during rapid exhaust, results in high costs, complex structures, and difficulties in installation and maintenance.

[0004] Chinese patent CN 201033026Y discloses a dual-temperature and dual-pressure oven. Its silencing and exhaust system is composed of multiple short pipes, tee pipe joints, a weighted safety valve, a steel ball spring safety valve, an exhaust valve, a pressure gauge, and two exhaust pipes with multi-hole silencers at the outlets, which are mechanically connected. The exhaust pipes are inserted into a water tank set on the side of the oven. The strong noise generated when the oven body exhausts is eliminated through this mechanism. The overall structure design is relatively complex. Summary of the Invention

[0005] To address the problems in related technologies, this utility model proposes an exhaust silencing structure for a steam oven. A silencing part is set in the exhaust pipe to reduce the gas flow rate in the exhaust pipe. This allows for both exhaust and noise reduction. The structure is simple in design and avoids the explosive noise generated during rapid exhaust.

[0006] This utility model is implemented as follows:

[0007] A ventilation and noise reduction structure for a steam oven includes an exhaust pipe disposed on the side wall of the steam oven. The steam oven is provided with an air inlet and an exhaust outlet. One end of the exhaust pipe is connected to the exhaust outlet, and the other end is connected to the outside.

[0008] The exhaust pipe has an inwardly protruding annular edge that extends along the exhaust pipe towards the end away from the exhaust port, forming a muffler with an opening at one end. The muffler is a cylindrical structure with an internal cavity, and its shape is adapted to the exhaust pipe. The opening of the muffler is located near the annular edge and is flush with it. The sidewall of the muffler has several through holes.

[0009] Gas enters the exhaust pipe through the exhaust port, passes through the opening of the muffler and enters the cavity of the muffler. The gas in the cavity then enters the exhaust pipe through the through hole on the side wall of the muffler and is discharged to the outside.

[0010] Preferably, the exhaust pipe is integrally formed with the ring edge and the muffler.

[0011] Specifically, the one-piece molding structure is designed to ensure the airtightness between the exhaust pipe and the muffler, so that the gas can only flow through the through holes on the side wall of the muffler and be discharged to the outside.

[0012] Preferably, the exhaust pipe includes a first exhaust pipe and a second exhaust pipe connected to each other; the first exhaust pipe is connected to the exhaust port, and the second exhaust pipe is connected to the outside.

[0013] Specifically, the exhaust pipe has two sections. The first section is connected to the exhaust port and can control the flow of gas in the first exhaust pipe section. The second exhaust pipe is connected to the outside. The muffler is set in the second exhaust pipe section. The muffler has the function of limiting the gas flow rate, thereby achieving the effect of muffler. Avoid placing the muffler too close to the exhaust port to prevent blockage at the exhaust port and affect the gas circulation inside the steam oven.

[0014] Preferably, the second exhaust pipe is sleeved on the outside of the first exhaust pipe, and the first exhaust pipe and the second exhaust pipe are sealed together.

[0015] Specifically, the first and second exhaust pipes are connected by a seal to prevent gas from leaking out at the connection point, which would affect the noise reduction effect and the airflow circulation inside the oven.

[0016] Preferably, the first exhaust pipe includes a receiving cavity, a straight pipe section, and an inner connecting section connected in sequence, wherein the receiving cavity is connected to the exhaust port.

[0017] Specifically, the cavity is a rectangular box-shaped structure to ensure that gas can enter the exhaust pipe smoothly and prevent blockage when the gas is discharged from the exhaust port.

[0018] Preferably, the second exhaust pipe includes an external section and an exhaust section connected in sequence, wherein the exhaust section is connected to the outside.

[0019] Specifically, the external section is used for a sealed connection with the first exhaust pipe, and the exhaust section is mainly used to install a muffler, which is used to muffle the exhaust before it is discharged to the outside.

[0020] Preferably, the ring edge is located at the corresponding position where the outer section and the discharge section meet, and the silencing part is located inside the discharge section.

[0021] Specifically, the ring edge can provide a sealing effect for the connection between the outer and inner sections, and at the same time, it can be integrated with the muffler to form a narrow pipe inside the exhaust pipe, which obstructs the gas flow and can only be discharged through the through hole, thereby reducing the gas flow speed and eliminating the explosion noise during exhaust.

[0022] Preferably, the outer segment is sleeved on the outside of the inner segment, and the inner segment abuts against the ring edge, and the outer segment and the inner segment are sealed together.

[0023] Specifically, the lengths of the outer and inner sections are adapted to each other, and the structure of the sleeve and abutment ring can ensure and improve the internal sealing performance.

[0024] Preferably, the side wall of the exhaust pipe is provided with a switch port, and an electromagnetic valve is provided outside the switch port. An exhaust plug is connected to the electromagnetic valve. The exhaust plug is controlled by the electromagnetic valve to allow the exhaust plug to enter or exit the exhaust pipe through the switch port, thereby closing or opening the exhaust pipe.

[0025] Specifically, the exhaust plug can block the exhaust pipe. The exhaust pipe can be opened or closed by pushing or pulling the exhaust plug through a solenoid valve. The solenoid valve is mainly located on the side of the first exhaust pipe.

[0026] Preferably, the switch port is located between the ring edge and the exhaust port.

[0027] Specifically, the switch is located on the straight pipe section and at the position where it connects with the inner section; it controls the opening and closing of the exhaust pipe before the gas enters the muffler section of the second exhaust pipe.

[0028] Compared with the prior art, the present invention achieves the following beneficial effects:

[0029] This utility model provides a silencing structure for the exhaust of a steam oven. The steam oven has an exhaust port, and both ends of the exhaust pipe are connected to the exhaust port and the outside, respectively. A silencing part is set inside the exhaust pipe, and several through holes are provided on the side wall of the silencing part. When the airflow is discharged to the outside through the exhaust pipe, the silencing part blocks the airflow, causing the airflow to flow through the through holes, thereby reducing the airflow speed and achieving a silencing effect. This avoids the explosive noise generated during rapid exhaust, reduces the propagation and intensity of noise, provides users with a quieter and more comfortable operating environment, and avoids interference and discomfort to the surrounding environment and people due to excessive noise. It also significantly improves the user experience. The silencing part has a simple structural design and low cost.

[0030] Simultaneously, it also helps protect the safety of the steam oven equipment. During the emission process, if high-temperature steam directly impacts the exhaust pipe or other components, it may cause deformation, damage, or safety hazards. The silencing section absorbs and disperses the impact force of the steam, thereby reducing the risk of damage to the equipment; moreover, the installation of the silencing section can extend the service life of the steam oven to a certain extent. Because the silencing section reduces noise and impact force during steam emission, it can reduce wear and corrosion of internal parts, which helps maintain the equipment in good condition and extend its service life; furthermore, noise pollution control meets environmental protection requirements, reducing negative impacts on the surrounding environment and people. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall product of the exhaust and noise reduction structure of a steam oven according to an embodiment of this utility model;

[0032] Figure 2 This is a connection diagram of the exhaust and noise reduction structure of a steam oven according to an embodiment of the present utility model;

[0033] Figure 3 This is a schematic diagram of the exhaust and noise reduction structure of a steam oven according to an embodiment of the present invention;

[0034] Figure 4 This is a cross-sectional schematic diagram of the exhaust and noise reduction structure of a steam oven according to an embodiment of the present utility model;

[0035] Figure 5 This is a schematic diagram of the first exhaust pipe structure of a steam oven's exhaust and noise reduction structure according to an embodiment of the present utility model.

[0036] Figure 6 This is a schematic cross-sectional view of the first exhaust pipe of a steam oven's exhaust and noise reduction structure according to an embodiment of the present invention.

[0037] Figure 7This is a schematic diagram of the second exhaust pipe structure of a steam oven's exhaust silencing structure according to an embodiment of the present utility model;

[0038] Figure 8 This is a schematic cross-sectional view of the second exhaust pipe of a steam oven's exhaust silencing structure in an embodiment of this utility model;

[0039] Figure 9 This is a schematic diagram illustrating the principle of the exhaust and noise reduction structure of a steam oven in an embodiment of this utility model.

[0040] Figure label:

[0041] 1. Steam oven; 11. Vent; 12. Vent pipe;

[0042] 2. First exhaust pipe; 21. Receiving cavity; 22. Straight pipe section; 221. Switch port; 222. Solenoid valve; 223. Exhaust plug; 23. Internal connection section;

[0043] 3. Second exhaust pipe; 31. External connection section; 32. Exhaust section; 321. Ring edge; 322. Muffler part; 323. Through hole. Detailed Implementation

[0044] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0045] Example

[0046] like Figures 1 to 9 A silencing structure for exhaust of a steam oven 1 includes an exhaust pipe 12 disposed on the side wall of the steam oven 1. The steam oven 1 is provided with an air inlet and an exhaust outlet 11. One end of the exhaust pipe 12 is connected to the exhaust outlet 11, and the other end is connected to the outside.

[0047] The exhaust pipe 12 has an inwardly protruding annular edge 321. The annular edge 321 extends along the exhaust pipe 12 away from the exhaust port 11, forming a muffler 322 with an opening at one end. The muffler 322 is a cylindrical structure with an internal cavity, and its shape is adapted to the exhaust pipe 12. The opening of the muffler 322 is located near the annular edge 321 and is flush with the annular edge 321. The sidewall of the muffler 322 has several through holes 323.

[0048] Gas enters the exhaust pipe 12 through the exhaust port 11, enters the cavity of the muffler 322 through the opening of the muffler 322, and then enters the exhaust pipe 12 through the through hole 323 on the side wall of the muffler 322 and is discharged to the outside.

[0049] The exhaust pipe 12 is integrally formed with the ring edge 321 and the muffler 322.

[0050] The one-piece molding structure is to ensure the sealing between the exhaust pipe 12 and the muffler 322, so that the gas can only flow through the through hole 323 on the side wall of the muffler 322 and be discharged to the outside.

[0051] The exhaust pipe 12 includes a first exhaust pipe 2 and a second exhaust pipe 3 connected to each other; the first exhaust pipe 2 is connected to the exhaust port 11, and the second exhaust pipe 3 is connected to the outside.

[0052] The exhaust pipe 12 has two sections. The first section is connected to the exhaust port 11 and can control the flow of gas in the first exhaust pipe 2 section. The second exhaust pipe 3 is connected to the outside. The muffler 322 is set in the second exhaust pipe 3 section. The muffler 322 has the function of limiting the gas flow rate, thereby achieving the effect of muffler. Avoid setting the muffler 322 too close to the exhaust port 11 to prevent blockage at the exhaust port 11 and affect the gas circulation inside the steam oven 1.

[0053] The second exhaust pipe 3 is sleeved on the outside of the first exhaust pipe 2, and the first exhaust pipe 2 and the second exhaust pipe 3 are sealed together.

[0054] The first exhaust pipe 2 and the second exhaust pipe 3 are connected by a sealed connection to prevent gas from flowing out at the connection point, which would affect the noise reduction effect and the airflow circulation inside the steam oven 1.

[0055] The first exhaust pipe 2 includes a receiving cavity 21, a straight pipe section 22 and an inner connecting section 23 connected in sequence, and the receiving cavity 21 is connected to the exhaust port 11.

[0056] The receiving cavity 21 has a rectangular box-shaped structure to ensure that gas can smoothly enter the exhaust pipe 12 and prevent blockage when gas is discharged from the exhaust port 11.

[0057] The second exhaust pipe 3 includes an external section 31 and an exhaust section 32 connected in sequence, wherein the exhaust section 32 is connected to the outside.

[0058] The external section 31 is used for a sealed connection with the first exhaust pipe 2, and the discharge section 32 is mainly used to install the muffler 322, which is used to muffle the exhaust to the outside.

[0059] The ring edge 321 is located at the corresponding position where the outer section 31 connects to the discharge section 32, and the muffler 322 is located inside the discharge section 32.

[0060] The ring edge 321 can provide a sealing effect for the connection between the outer section 31 and the inner section 23, and can also be integrated with the muffler 322 to form a narrow pipe inside the exhaust pipe 12, which obstructs the gas flow and can only be discharged through the through hole 323, thereby reducing the gas flow speed and eliminating the explosion noise during exhaust.

[0061] The outer segment 31 is sleeved on the outside of the inner segment 23, and the inner segment 23 abuts against the ring edge 321, and the outer segment 31 and the inner segment 23 are sealed together.

[0062] The lengths of the outer section 31 and the inner section 23 are adapted to each other, and the structure of the sleeve and abutment ring edge 321 can ensure and improve the internal sealing performance.

[0063] The side wall of the exhaust pipe 12 is provided with a switch port 221. A solenoid valve 222 is provided outside the switch port 221. An exhaust plug 223 is connected to the solenoid valve 222. The exhaust plug 223 is controlled by the solenoid valve 222 to allow the exhaust plug 223 to enter or exit the exhaust pipe 12 through the switch port 221, thereby closing or opening the exhaust pipe 12.

[0064] The exhaust plug 223 can block the exhaust pipe 12. The solenoid valve 222 pushes or pulls out the exhaust plug 223 to control the opening and closing of the exhaust pipe 12. The solenoid valve 222 is mainly located on the side of the first exhaust pipe 2.

[0065] The switch port 221 is located between the ring edge 321 and the exhaust port 11.

[0066] The switch port 221 is located on the straight pipe section 22 and at the position where it connects with the inner section 23; it controls the opening and closing of the exhaust pipe 12 before the gas enters the muffler 322 of the second exhaust pipe 3.

[0067] This utility model provides an exhaust noise reduction structure for a steam oven 1. A noise reduction part 322 is provided in the exhaust pipe 12, and a through hole 323 is provided on the side wall of the noise reduction part 322. When the gas passes through the noise reduction part 322 in the exhaust pipe 12, the airflow speed is reduced, and it is discharged to the outside through the through hole 323. The noise reduction effect is achieved by reducing the airflow speed, avoiding the explosion noise generated during rapid exhaust. It can both exhaust and eliminate explosion noise. The overall design structure is simple and the cost is low, which greatly improves the user experience.

[0068] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. A venting and noise reduction structure for a steam oven, comprising an exhaust pipe disposed on the side wall of the steam oven, wherein the steam oven has an air inlet and an exhaust outlet, one end of the exhaust pipe is connected to the exhaust outlet, and the other end is connected to the outside; characterized in that, The exhaust pipe has an inwardly protruding annular edge that extends along the exhaust pipe towards the end away from the exhaust port, forming a muffler with an opening at one end. The muffler is a cylindrical structure with an internal cavity, and its shape is adapted to the exhaust pipe. The opening of the muffler is located near the annular edge and is flush with it. The sidewall of the muffler has several through holes. Gas enters the exhaust pipe through the exhaust port, enters the cavity of the muffler through the opening of the muffler, and then enters the exhaust pipe through the through hole on the side wall of the muffler and is discharged to the outside.

2. The exhaust noise reduction structure of a steam oven according to claim 1, characterized in that, The exhaust pipe is integrally formed with the ring edge and the muffler.

3. The exhaust noise reduction structure of a steam oven according to claim 1, characterized in that, The exhaust pipeline includes a first exhaust pipe and a second exhaust pipe that are connected to each other; the first exhaust pipe is connected to the exhaust port, and the second exhaust pipe is connected to the outside.

4. The exhaust noise reduction structure of a steam oven according to claim 3, characterized in that, The second exhaust pipe is sleeved on the outside of the first exhaust pipe, and the first exhaust pipe and the second exhaust pipe are sealed together.

5. The exhaust noise reduction structure of a steam oven according to claim 4, characterized in that, The first exhaust pipe includes a receiving cavity, a straight pipe section, and an inner connecting section connected in sequence, and the receiving cavity is connected to the exhaust port.

6. The exhaust noise reduction structure of a steam oven according to claim 5, characterized in that, The second exhaust pipe includes an external section and an exhaust section connected in sequence, the exhaust section being connected to the outside.

7. The exhaust noise reduction structure of a steam oven according to claim 6, characterized in that, The ring edge is located at the corresponding position where the outer section and the discharge section meet, and the silencing part is located inside the discharge section.

8. The exhaust noise reduction structure of a steam oven according to claim 6, characterized in that, The outer segment is sleeved on the outside of the inner segment, and the inner segment abuts against the ring edge, with a sealed connection between the outer segment and the inner segment.

9. The exhaust noise reduction structure of a steam oven according to claim 1, characterized in that, The exhaust pipe has a switch port on its side wall. A solenoid valve is provided outside the switch port. An exhaust plug is connected to the solenoid valve. The exhaust plug is controlled by the solenoid valve to enter or exit the exhaust pipe through the switch port, thereby closing or opening the exhaust pipe.

10. The exhaust noise reduction structure of a steam oven according to claim 9, characterized in that, The switch is located between the ring edge and the exhaust port.

Images