CN216724153U - Electric pressure cooker with good noise reduction effect - Google Patents

Abstract

The utility model discloses an electric pressure cooker with a good noise reduction effect, which comprises a cooker cover, wherein the cooker cover comprises an inner cover assembly and an outer cover assembly, a pressure limiting valve is arranged on the inner cover assembly, the pressure limiting valve is provided with a steam outlet, a primary silencing cavity is arranged between the inner cover assembly and the outer cover assembly, the pressure limiting valve is positioned in the primary silencing cavity, a secondary silencing cavity is arranged on the outer side of the outer cover assembly, an air outlet hole is formed in the secondary silencing cavity, an exhaust channel is connected between the top of the primary silencing cavity and the secondary silencing cavity, and the exhaust channel is arranged to deviate from the steam outlet. According to the electric pressure cooker, the primary silencing cavity and the secondary silencing cavity are arranged, so that the diffusion flow path of steam can be effectively increased, more energy is consumed by the steam, the noise reaches a lower level, and the overflow risk of soup can be reduced.

Description

Electric pressure cooker with good noise reduction effect

[ technical field ] A method for producing a semiconductor device

The utility model relates to the technical field of kitchen appliances, in particular to an electric pressure cooker with a good noise reduction effect.

[ background of the utility model ]

When the electric pressure cooker is used for cooking food, certain air pressure is required to be arranged in the cooking cavity, so that the cooking effect of the food can be improved. After the food is boiled out, need be with the gas outgoing of culinary art intracavity, at the exhaust process, the gas of culinary art intracavity can produce great noise, influences user's use and experiences.

In order to reduce exhaust noise, a silencing box is generally arranged on a cooker cover of the electric pressure cooker, the silencing box is communicated with a pressure limiting valve on the cooker cover, a silencing cavity is arranged in the silencing box, and steam flows after entering the silencing cavity in a diffusion mode and can consume energy of the steam, so that the aim of reducing the flow rate of the steam is fulfilled, and the exhaust noise is further reduced. However, the existing electric pressure cooker is only provided with one silencing cavity, so that the noise absorption capability is weak, and the purpose of effectively reducing noise cannot be achieved.

[ Utility model ] content

The technical problem to be solved by the utility model is to overcome the defects of the prior art and provide the electric pressure cooker with good noise reduction effect.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the electric pressure cooker with the good noise reduction effect comprises a cooker cover, wherein the cooker cover comprises an inner cover component and an outer cover component, a pressure limiting valve is arranged on the inner cover component, the pressure limiting valve is provided with a steam outlet, a one-level silencing cavity is arranged between the inner cover component and the outer cover component, the pressure limiting valve is located in the one-level silencing cavity, a second-level silencing cavity is arranged on the outer side of the outer cover component, an air outlet hole is formed in the second-level silencing cavity, an exhaust channel is connected between the top of the one-level silencing cavity and the second-level silencing cavity, and the exhaust channel is deviated from the steam outlet.

Furthermore, the pot cover further comprises a shielding plate which is arranged on the inner cover component in a sealing and buckling mode, and the shielding plate and the inner cover component are matched to form the primary silencing cavity.

Further, the shutter has mounting ears secured to the inner cap assembly by screws; or the shielding plate is clamped and fixed between the inner cover assembly and the outer cover assembly.

Further, enclosing cover subassembly top surface is equipped with recess and demountable installation in the exhaust lid in the recess, the cooperation of exhaust lid and the diapire of recess forms the second grade amortization chamber.

Furthermore, the exhaust passage comprises an exhaust hole formed in the top of the primary silencing cavity and a transition micro hole formed in the bottom wall of the groove, the exhaust hole deviates from the steam outlet, and the transition micro hole is communicated with the exhaust hole.

Furthermore, the bottom wall of the groove is also provided with a positioning surrounding rib surrounding the outer side of the transition micropore, and the positioning surrounding rib is inserted into the exhaust hole.

Furthermore, a sunk platform is arranged on the local top wall of the primary silencing cavity to avoid part of the bottom wall of the groove, and the exhaust holes are formed in the sunk platform.

Furthermore, the second-stage silencing cavity comprises an inner silencing cavity and an outer silencing cavity surrounding the outer side of the inner silencing cavity, the outer silencing cavity is communicated with the inner silencing cavity, one of the inner silencing cavity and the outer silencing cavity is communicated with the exhaust channel, and the other one of the inner silencing cavity and the outer silencing cavity is provided with the air outlet.

Furthermore, the exhaust cover comprises an inner annular wall, an outer annular wall and a top wall, the inner annular wall, the outer annular wall, the top wall and the bottom surface of the groove are matched to form the outer silencing cavity, and the inner annular wall, the top wall and the bottom surface of the groove are matched to form the inner silencing cavity.

Further, the air outlet is far away from the exhaust channel.

The utility model has the beneficial effects that:

the steam discharged from the steam outlet firstly enters the primary silencing cavity to flow and diffuse and dissipate certain energy so as to realize primary silencing and noise reduction, and then enters the secondary silencing cavity through the exhaust channel to flow and diffuse again and further dissipate energy so as to realize secondary silencing and noise reduction and further reduce noise, so that compared with the scheme that only one silencing cavity is arranged in the prior art, the steam provided by the utility model has the advantages that the primary silencing cavity and the secondary silencing cavity are arranged, the steam can flow in a diffused manner twice so as to consume more energy, further the noise can be greatly reduced, and the noise reduction effect is improved; meanwhile, most bubbles in the steam can be collided and broken in the primary silencing cavity, so that the risk of overflowing is avoided; secondly, the exhaust channel is arranged to deviate from the steam outlet, so that the steam can enter the secondary silencing cavity through the exhaust channel after passing through a certain flow path in the primary silencing cavity, the flow path of the steam in the primary silencing cavity is prolonged, more energy consumption is carried out on the steam in the primary silencing cavity, and further noise reduction and silencing are realized; finally, locate the outward appearance that can promote the product between inner cup subassembly and the enclosing cover subassembly with one-level amortization chamber.

The cooker cover also comprises a shielding plate which is hermetically buckled on the inner cover component, and the shielding plate and the inner cover component are matched to form a primary silencing cavity. By the design, the structure is simple, and the assembly is convenient.

The shielding plate is provided with mounting lugs which are fixed on the inner cover component through screws, and the mounting reliability of the shielding plate can be improved due to the design; or, the sunshade plate is clamped and fixed between the inner cover component and the outer cover component, and by the design, screws can be omitted, and the assembly is not required by means of a screwdriver, so that the assembly difficulty of the sunshade plate is further reduced.

The enclosing cover subassembly top surface is equipped with recess and the exhaust lid of demountable installation in the recess, and the diapire cooperation of exhaust lid and recess forms the second grade amortization chamber. By the design, when the interior of the secondary silencing cavity is cleaned in the later period, the secondary silencing cavity can be exposed only by disassembling the exhaust cover, so that a user can clean the secondary silencing cavity conveniently.

Exhaust passage is including locating the exhaust hole at one-level amortization chamber top and locating the transition micropore on the diapire of recess, and the exhaust hole deviates from the steam outlet setting, and transition micropore and exhaust hole intercommunication. By the design, the steam passing through the transition micropores can be compressed to consume and absorb energy in the gas, so that the energy of sound waves in the gas is reduced; then after steam got into the second grade amortization intracavity, steam can expand to reduce steam pressure, and then make the velocity of flow of gas further slow down, make gaseous noise weaken once more, promote the effect of amortization noise reduction.

The bottom wall of the groove is also provided with a positioning surrounding rib surrounding the outer side of the transition micropore, and the positioning surrounding rib is inserted into the exhaust hole. By the design, the pre-positioning of the outer cover component can be realized through the insertion and connection matching of the positioning surrounding ribs and the exhaust holes, so that the outer cover component can be conveniently assembled and fixed in the later stage.

The top wall part of the first-level silencing cavity is provided with a sinking platform to avoid the bottom wall of the partial groove, and the exhaust hole is arranged on the sinking platform. By the design, the volume of the primary silencing cavity can be effectively increased, so that the flow path of steam in the primary silencing cavity is further improved, and the noise reduction and silencing effects are further improved; in addition, the bottom wall of the groove can be supported through the top wall of the primary silencing cavity, so that the bottom wall of the groove is prevented from deforming due to high temperature.

The second-stage silencing cavity comprises an inner silencing cavity and an outer silencing cavity surrounding the outer side of the inner silencing cavity, the outer silencing cavity is communicated with the inner silencing cavity, one of the inner silencing cavity and the outer silencing cavity is communicated with the exhaust channel, and the other one of the inner silencing cavity and the outer silencing cavity is provided with an air outlet. So design can make steam just can discharge from the venthole after the twice diffusion amortization of interior amortization chamber and outer amortization chamber, prolonged the flow path of steam in second grade amortization intracavity from this, make the energy of steam by too much consumption and absorption at the flow in-process, and then reduce the flow velocity of steam, further promote noise reduction and noise reduction effect.

The air outlet is far away from the exhaust channel. So design, can further prolong the flow path of steam to increase the flow time of steam in the second grade amortization chamber, and then increase the consumption of energy, promote the amortization effect of making an uproar that falls.

These features and advantages of the present invention will be disclosed in more detail in the following detailed description and the accompanying drawings.

[ description of the drawings ]

The utility model is further described below with reference to the accompanying drawings:

fig. 1 is an exploded view of a pot cover according to a first embodiment of the present invention;

FIG. 2 is a cross-sectional view of a pot lid according to an embodiment of the present invention;

fig. 3 is a partial sectional view of a pot lid according to an embodiment of the present invention.

Reference numerals:

100. a pot cover; 110. an inner cap assembly; 120. an outer cover assembly; 121. a groove; 122. positioning the surrounding ribs; 123. enclosing plates; 130. a shutter; 131. sinking a platform; 200. a pressure limiting valve; 210. an exhaust pipe; 220. a weight; 300. a primary sound-deadening chamber; 400. a secondary sound-deadening cavity; 401. an air outlet; 410. an internal silencing cavity; 420. an outer muffling chamber; 500. an exhaust passage; 510. an exhaust hole; 520. transition micropores; 600. an exhaust cover; 610. an inner annular wall; 620. an outer annular wall; 630. a top wall.

[ detailed description ] embodiments

The utility model provides an electric pressure cooker with good noise reduction effect, which comprises a cooker cover, wherein the cooker cover comprises an inner cover assembly and an outer cover assembly, a pressure limiting valve is arranged on the inner cover assembly, the pressure limiting valve is provided with a steam outlet, a primary silencing cavity is arranged between the inner cover assembly and the outer cover assembly, the pressure limiting valve is positioned in the primary silencing cavity, a secondary silencing cavity is arranged on the outer side of the outer cover assembly, an air outlet hole is formed in the secondary silencing cavity, an exhaust channel is connected between the top of the primary silencing cavity and the secondary silencing cavity, and the exhaust channel is arranged to deviate from the steam outlet.

The steam discharged from the steam outlet firstly enters the primary silencing cavity to flow and diffuse and dissipate certain energy so as to realize primary silencing and noise reduction, and then enters the secondary silencing cavity through the exhaust channel to flow and diffuse again and further dissipate energy so as to realize secondary silencing and noise reduction and further reduce noise, so that compared with the scheme that only one silencing cavity is arranged in the prior art, the steam provided by the utility model has the advantages that the primary silencing cavity and the secondary silencing cavity are arranged, the steam can flow in a diffused manner twice so as to consume more energy, further the noise can be greatly reduced, and the noise reduction effect is improved; meanwhile, most bubbles in the steam can be collided and broken in the primary silencing cavity, so that the risk of overflowing is avoided; secondly, the exhaust channel is arranged to deviate from the steam outlet, so that the steam can enter the secondary silencing cavity through the exhaust channel after passing through a certain flow path in the primary silencing cavity, the flow path of the steam in the primary silencing cavity is prolonged, more energy consumption is carried out on the steam in the primary silencing cavity, and further noise reduction and silencing are realized; finally, locate the appearance that can promote the product between inner cup subassembly and the enclosing cover subassembly with one-level amortization chamber.

The technical solutions of the embodiments of the present invention are explained and illustrated below with reference to the drawings of the embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention, and not all embodiments. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative effort belong to the protection scope of the present invention.

Example one

Referring to fig. 1 to 3, the embodiment provides an electric pressure cooker with good noise reduction effect, which comprises a cooker body and a cooker cover 100, wherein the cooker cover 100 covers the cooker body to form a cooking cavity, the cooker cover 100 comprises an inner cover assembly 110 and an outer cover assembly 120, the outer cover assembly 120 covers the outer side of the inner cover assembly 110, the inner cover assembly 110 is provided with a pressure limiting valve 200, the pressure limiting valve 200 comprises an exhaust pipe 210 and a heavy hammer 220 fastened at the upper end of the exhaust pipe 210, the lower end of the exhaust pipe 210 is communicated with the cooking cavity, the upper end of the exhaust pipe 210 forms a steam outlet, a primary muffling cavity 300 is arranged between the inner cover assembly 110 and the outer cover assembly 120, the upper end of the exhaust pipe 210 extends into the primary muffling cavity 300, the outer side of the outer cover assembly 120 is provided with a secondary muffling cavity 400, the secondary muffling cavity 400 is provided with an air outlet hole 401, an exhaust channel 500 is connected between the top of the primary muffling cavity 300 and the secondary muffling cavity 400, and the exhaust channel 500 is arranged deviating from the steam outlet, i.e. the exhaust channel 500 is not located directly above the steam outlet.

When the electric pressure cooker in the embodiment is used, steam discharged from a steam outlet firstly enters the first-stage silencing cavity 300 to flow and diffuse and dissipate certain energy so as to realize primary silencing and noise reduction, and then enters the second-stage silencing cavity 400 through the exhaust channel 500 to flow and diffuse again and further dissipate energy so as to realize secondary silencing and noise reduction and further reduce noise, so that compared with the scheme that only one silencing cavity is arranged in the prior art, the first-stage silencing cavity 300 and the second-stage silencing cavity 400 are arranged in the embodiment, steam can diffuse and flow twice so as to consume more energy, further greatly reduce noise and improve noise reduction effect; meanwhile, most of bubbles in the steam can collide and break in the primary silencing cavity 300, so that the risk of overflowing is avoided; secondly, the exhaust channel 500 is arranged deviating from the steam outlet, so that the steam can enter the secondary silencing cavity 400 through the exhaust channel 500 after passing through a certain flow path in the primary silencing cavity 300, thereby prolonging the flow path of the steam in the primary silencing cavity 300, leading the steam to perform more energy consumption in the primary silencing cavity 300 and realizing further noise reduction and silencing; finally, the placement of the primary sound-attenuating chamber 300 between the inner cap assembly 110 and the outer cap assembly 120 may enhance the appearance of the product.

Specifically, the pot cover in this embodiment further includes a shielding plate 130, a mounting ear is disposed on the shielding plate 130, the mounting ear is fixed on the inner lid assembly 110 by a screw, a sealing ring is disposed between the bottom surface of the shielding plate 130 and the inner lid assembly 110, so that the shielding plate 130 is tightly fastened on the inner lid assembly 110, the first-stage muffling cavity 300 is formed between the shielding plate 130 and the inner lid assembly 110, and the shielding plate 130 is fixed by a screw connection method, which is not only simple in structure and convenient to assemble, but also can effectively improve the mounting reliability of the shielding plate 130.

It is understood that, in other embodiments of the present invention, the shielding plate may be further clamped and fixed between the inner cover assembly and the outer cover assembly, the inner cover assembly is provided with a sealing ring disposed around the exhaust pipe, when assembling, the shielding plate is firstly buckled on the sealing ring, and then the shielding plate is pressed and installed on the sealing ring by fixing the outer cover assembly and the inner cover assembly, so that screws may be omitted, and a screwdriver is not required for assembling, thereby further reducing the assembling difficulty of the shielding plate.

It will be appreciated that in other embodiments of the utility model, an annular plate is provided between the inner cap assembly or the outer cap assembly, the annular plate, the inner cap assembly and the outer cap assembly defining a primary sound-damping chamber, one of the inner cap assembly and the outer cap assembly being formed integrally with the annular plate, and a seal being interposed between the other and the annular plate to prevent leakage of steam from the primary sound-damping chamber.

And the top surface of enclosing cover subassembly 120 is equipped with recess 121 and exhaust lid 600, and mode demountable installation such as screw connection or threaded connection or joint is adopted to exhaust lid 600 to spiral shell, and exhaust lid 600 forms second grade amortization chamber 400 with the diapire cooperation of recess 121, and venthole 401 is located on the roof of exhaust lid 600. By adopting the design, when the interior of the secondary silencing cavity 400 is cleaned in the later period, the secondary silencing cavity 400 can be exposed only by disassembling the exhaust cover 600, so that the cleaning by a user is convenient.

The exhaust passage 500 includes an exhaust hole 510 formed at the top of the primary muffling chamber 300 and a transition micro-hole 520 formed at the bottom wall of the groove 121, the exhaust hole 510 being disposed to be deviated from the steam outlet, the transition micro-hole 520 being communicated with the exhaust hole 510. By such design, the vapor passing through the transition micropores 520 can be compressed to consume and absorb the energy in the gas, thereby reducing the energy of the sound waves in the gas; then in steam gets into second grade amortization chamber 400 back, steam can expand to reduce steam pressure, and then make the velocity of flow of gas further slow down, make gaseous noise weaken once more, promote the effect of amortization noise reduction.

Preferably, the diapire of recess 121 still is equipped with around enclosing muscle 122 in the location in the transition micropore 520 outside, and the location encloses muscle 122 and inserts in the exhaust hole 510, and the location encloses and is equipped with the sealing member between muscle 122 and the exhaust hole 510, and so the design can enclose muscle 122 and exhaust hole 510's grafting cooperation through the location and realize prepositioning to lid subassembly 120 to the equipment in convenient outer lid subassembly 120 later stage is fixed.

In addition, in the present embodiment, the second-stage muffling cavity 400 is wholly or partially located above the first-stage muffling cavity 300, in order to effectively increase the volume of the first-stage muffling cavity 300, so as to further increase the flow path of the steam in the first-stage muffling cavity 300, and further improve the noise reduction and muffling effects, in the present embodiment, it is preferable that the portion of the second-stage muffling cavity 400 is located above the first-stage muffling cavity 300, at this time, a top wall of the shielding plate 130 is partially provided with a sunken platform 131 to avoid the bottom wall of the partial groove 121, and the exhaust hole 510 is provided on the sunken platform 131, so that the portion of the top wall of the shielding plate 130 located outside the sunken platform 131 can directly abut against the outer cover assembly 120, compared with the portion of the top wall sunken to avoid the groove 121, and thus, the design can effectively increase the volume of the first-stage muffling cavity 300; in addition, the bottom wall of the groove 121 is supported by the top wall of the shield 130 to prevent the bottom wall of the groove 121 from being deformed due to high temperature.

It can be understood that in other embodiments of the present invention, the vertical projection of the secondary sound-deadening cavity is completely located outside the primary sound-deadening cavity, and the exhaust channel further includes an exhaust pipe, one end of the exhaust pipe is communicated with the communicating exhaust hole, and the other end of the exhaust pipe is sleeved outside the positioning surrounding rib to be communicated with the transition micro-hole.

In order to further reduce noise, the secondary muffling chamber 400 of the present embodiment comprises an inner muffling chamber 410 and an outer muffling chamber 420 surrounding the inner muffling chamber 410, and in order to form the inner muffling chamber 410 and the outer muffling chamber 420, the exhaust cap 600 of the present embodiment comprises an inner annular wall 610, an outer annular wall 620, and a top wall 630, wherein the inner annular wall 610, the outer annular wall 620, the top wall 630, and the bottom surface of the groove 121 cooperate to form the outer muffling chamber 420, the inner annular wall 610, the top wall 630, and the bottom surface of the groove 121 cooperate to form the inner muffling chamber 410, a flow gap is formed between the lower end of the inner annular wall 610 and the bottom wall of the groove 121, such that the outer muffling chamber 420 communicates with the inner muffling chamber 410, the transition micro-holes 520 communicate with the inner muffling chamber 410 and are disposed near the front side of the inner muffling chamber 410, and the air outlet holes 401 are disposed on the top wall of the outer muffling chamber 420 and near the rear side of the outer muffling chamber 420, such that the air outlet holes 401 are disposed far from the transition micro-holes 520, therefore, the steam discharged from the pressure limiting valve 200 firstly enters the inner silencing cavity 410 through the exhaust passage 500 for primary diffusion silencing, then most of the steam in the inner silencing cavity 410 flows into the outer silencing cavity 420 at the front part of the inner silencing cavity 410 for secondary diffusion silencing, finally flows backwards and is discharged from the air outlet 401, thereby prolonging the flow path of the steam in the secondary silencing cavity 400, enabling the energy of the steam to be excessively consumed and absorbed in the flow process, further reducing the flow speed of the steam, and further improving the noise reduction and silencing effects.

It can be understood that, in other embodiments of the present invention, the bottom surface of the groove is provided with an inner annular wall extending upward to form, the exhaust cover is a cover plate covering the notch of the groove, the cover plate is respectively connected with the inner annular wall and the groove wall of the groove in a sealing manner, so that an inner silencing cavity and an outer silencing cavity are formed inside the secondary silencing cavity, and at this time, the inner annular wall is provided with a through hole communicating the inner silencing cavity and the outer silencing cavity.

It is understood that in other embodiments of the present invention, the exhaust cover includes a top wall and a side wall, and the exhaust cover and the bottom wall of the groove cooperate to form a cavity, which is a secondary muffling cavity, and there is no need to separate an inner muffling cavity and an outer muffling cavity, and thus the basic effects of the present embodiment can be achieved.

It can be understood that, in other embodiments of the present invention, the transition micro-holes may further be communicated with the outer muffling cavity, and the air outlet is disposed on the top wall of the inner muffling cavity, so that the steam can be exhausted from the air outlet after two times of diffusion muffling in the muffling cavity, thereby extending the flow path of the steam in the secondary muffling cavity, and allowing the energy of the steam to be excessively consumed and absorbed in the flow process, thereby reducing the flow speed of the steam, and further improving the noise reduction and muffling effect.

Finally, the bottom surface of the groove 121 is further convexly provided with a surrounding plate 123 which is sleeved outside the inner annular wall 610, and a gap is arranged between the surrounding plate 123 and the inner annular wall 610, so that the steam exhausted from the circulation gap collides with the surrounding plate 123, is reversed and upwards enters the outer silencing cavity 420 through the gap, the flow path of the steam is changed and further prolonged, the energy loss is increased, and the silencing effect is improved.

Example two

Compare with embodiment one, the difference of this embodiment lies in, the removable amortization exhaust box that installs in the outside of enclosing cover subassembly, and the amortization exhaust box includes base and exhaust lid, and exhaust lid removable mounting forms the second grade amortization chamber on the base and with the base cooperation, and the second grade amortization chamber be a cavity or include interior amortization chamber and outer amortization chamber or other forms's cavity structures, as long as guarantee steam by its venthole discharge after the diffusion of second grade amortization intracavity.

While the utility model has been described with reference to specific embodiments thereof, it will be understood by those skilled in the art that the utility model is not limited thereto, and may be embodied in many different forms without departing from the spirit and scope of the utility model as set forth in the following claims. Any modification which does not depart from the functional and structural principles of the present invention is intended to be included within the scope of the claims.

Claims (10)

1. The electric pressure cooker with the good noise reduction effect comprises a cooker cover, wherein the cooker cover comprises an inner cover component and an outer cover component, a pressure limiting valve is arranged on the inner cover component and is provided with a steam outlet, and the electric pressure cooker is characterized in that a first-stage silencing cavity is arranged between the inner cover component and the outer cover component and is located in the first-stage silencing cavity, a second-stage silencing cavity is arranged on the outer side of the outer cover component and is provided with an air outlet hole, an exhaust passage is connected between the top of the first-stage silencing cavity and the second-stage silencing cavity, and the exhaust passage is deviated from the steam outlet.

2. The electric pressure cooker with good noise reduction effect as claimed in claim 1, wherein the lid further comprises a shielding plate sealingly fastened on the inner lid assembly, and the shielding plate and the inner lid assembly cooperate to form the primary muffling chamber.

3. The electric pressure cooker with good noise reduction effect as claimed in claim 2, wherein the covering plate is provided with mounting lugs, and the mounting lugs are fixed on the inner cover assembly through screws; or the shielding plate is clamped and fixed between the inner cover assembly and the outer cover assembly.

4. The electric pressure cooker with good noise reduction effect as claimed in claim 1, wherein the top surface of the outer cover assembly is provided with a groove and an exhaust cover detachably mounted in the groove, and the exhaust cover and the bottom wall of the groove cooperate to form the secondary silencing cavity.

5. The electric pressure cooker with good noise reduction effect as claimed in claim 4, wherein the exhaust passage comprises an exhaust hole arranged at the top of the primary silencing cavity and a transition micro hole arranged on the bottom wall of the groove, the exhaust hole is arranged to deviate from the steam outlet, and the transition micro hole is communicated with the exhaust hole.

6. The electric pressure cooker with good noise reduction effect as claimed in claim 5, wherein the bottom wall of the groove is further provided with a positioning surrounding rib surrounding the outer side of the transition micro hole, and the positioning surrounding rib is inserted into the exhaust hole.

7. The electric pressure cooker with good noise reduction effect as claimed in claim 5, wherein a sunken platform is partially arranged on the top wall of the primary silencing cavity to avoid a part of the bottom wall of the groove, and the exhaust hole is arranged on the sunken platform.

8. The electric pressure cooker with good noise reduction effect as claimed in claim 4, wherein the secondary silencing chamber comprises an inner silencing chamber and an outer silencing chamber surrounding the inner silencing chamber, the outer silencing chamber is communicated with the inner silencing chamber, one of the inner silencing chamber and the outer silencing chamber is communicated with the exhaust passage, and the other one is provided with the air outlet.

9. The electric pressure cooker with good noise reduction effect as claimed in claim 8, wherein the exhaust cover comprises an inner annular wall, an outer annular wall and a top wall, the inner annular wall, the outer annular wall, the top wall and the bottom surface of the groove cooperate to form the outer silencing cavity, and the inner annular wall, the top wall and the bottom surface of the groove cooperate to form the inner silencing cavity.

10. The electric pressure cooker with good noise reduction effect as claimed in any one of claims 1 to 9, wherein the air outlet is disposed away from the exhaust channel.

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