CN113545661B - Steam domestic appliance's exhaust structure and steam cooking equipment - Google Patents
Steam domestic appliance's exhaust structure and steam cooking equipment Download PDFInfo
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- CN113545661B CN113545661B CN202110784857.7A CN202110784857A CN113545661B CN 113545661 B CN113545661 B CN 113545661B CN 202110784857 A CN202110784857 A CN 202110784857A CN 113545661 B CN113545661 B CN 113545661B
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J27/00—Cooking-vessels
- A47J27/04—Cooking-vessels for cooking food in steam; Devices for extracting fruit juice by means of steam ; Vacuum cooking vessels
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J36/00—Parts, details or accessories of cooking-vessels
- A47J36/38—Parts, details or accessories of cooking-vessels for withdrawing or condensing cooking vapors from cooking utensils
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J37/00—Baking; Roasting; Grilling; Frying
- A47J37/06—Roasters; Grills; Sandwich grills
- A47J37/0623—Small-size cooking ovens, i.e. defining an at least partially closed cooking cavity
- A47J37/0629—Small-size cooking ovens, i.e. defining an at least partially closed cooking cavity with electric heating elements
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J27/00—Cooking-vessels
- A47J27/04—Cooking-vessels for cooking food in steam; Devices for extracting fruit juice by means of steam ; Vacuum cooking vessels
- A47J2027/043—Cooking-vessels for cooking food in steam; Devices for extracting fruit juice by means of steam ; Vacuum cooking vessels for cooking food in steam
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/80—Food processing, e.g. use of renewable energies or variable speed drives in handling, conveying or stacking
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Cookers (AREA)
Abstract
The invention relates to an exhaust structure of a steaming household appliance and steaming cooking equipment, which comprises an inner container with an exhaust port, an exhaust channel with an exhaust air inlet, an exhaust fan and an air pump, wherein the air inlet of the exhaust channel is provided with an exhaust fan, the exhaust port comprises a first exhaust port and a second exhaust port, the exhaust air inlet comprises a first exhaust air inlet and a second exhaust air inlet, the first exhaust air inlet and the second exhaust air inlet of the exhaust channel are covered with an air guide cover, one end of the air guide cover is provided with an air guide port, the air guide port faces to an air outlet of the exhaust channel, the first exhaust port is communicated with the first exhaust air inlet in a fluid manner, the second exhaust port is communicated with the air inlet of the air pump in a fluid manner, and the air outlet of the air pump is communicated with the second exhaust air inlet in a fluid manner. The invention can realize the circulation of steam in the temperature rise stage, improve the utilization rate of the steam, reduce the amount of externally discharged steam, and avoid the direct injection of high-temperature steam in the inner container when the door is opened when the cooking is finished.
Description
Technical Field
The invention relates to the field of cooking equipment, in particular to an exhaust structure of a steaming household appliance and steaming cooking equipment.
Background
When the existing steaming cooking equipment (such as a steam box, a steaming and baking all-in-one machine and the like) is opened in a steaming mode, steam in the inner container is always in an outward discharging state in a temperature rising stage, so that the temperature rising of the inner container is slow, the steaming efficiency is influenced, the energy efficiency is wasted, the outward discharging steam amount in the temperature rising stage is large, the cruising ability of the water box is influenced, and the use experience of a user is influenced. In addition, can remain a large amount of steam in steaming and baking all-in-one's the inner bag after steaming the function, a large amount of steam can gush out and directly spout the user from the opening part of inner bag when opening the door, has the risk of scalding the user, seriously influences user's use and experiences. The mode that has the adoption push rod motor top door among the prior art makes to evaporate between roast all-in-one's the door body and the inner bag form the gap, and the steam that remains in the inner bag is arranged outward through this gap, however, the push rod motor generally sets up the top at the right side water tank, and long-term the use has the risk that makes door body right side hinge shift out to lead to the step of the door body poor. In addition, the steam when opening the door is reduced to the mode that has the outer row of using fan to bleed, however the required time that lasts of the mode that the fan was taken out outward is longer, can influence the inside temperature of inner bag, and the food cooling that the culinary art was accomplished in making the inner bag influences the food taste to the mode of taking out outward only can reduce steam, still has a certain amount of steam to pounce on the face and gushes out when opening the door.
Disclosure of Invention
The first technical problem to be solved by the invention is to provide an exhaust structure of a steaming household appliance, which has fast temperature rise and less steam loss, aiming at the prior art.
The second technical problem to be solved by the present invention is to provide an exhaust structure of a steaming household appliance, which can prevent the steam from directly spraying a user when the door is opened, in view of the prior art.
The third technical problem to be solved by the present invention is to provide a steaming cooking device with the above-mentioned exhaust structure in view of the prior art.
The technical scheme adopted by the invention for solving at least one technical problem is as follows: an exhaust structure of a steaming household appliance comprises a liner with an exhaust port and an exhaust channel with an exhaust air inlet, wherein an exhaust fan is arranged at the air inlet of the exhaust channel.
When cooking is finished, discharging residual steam in the inner container through the air pumping function of the air pump, when the steam in the inner container is reduced to a certain degree, forming a certain negative pressure in the inner container relative to the exhaust channel, at the moment, the air pump cannot continuously pump the residual steam in the inner container, further comprising an air inlet cavity, wherein two ends of the air inlet cavity are respectively provided with an air inlet port and an air outlet port, the inner container is also provided with an air return port, the exhaust channel is also provided with an air exhaust outlet, the distance between the air exhaust outlet and the air inlet of the exhaust channel is respectively smaller than the distance between each air exhaust inlet and the air inlet of the exhaust channel, the air inlet port of the air inlet cavity is in fluid communication with the air exhaust outlet, the air outlet port is in fluid communication with the air return port, and the air inlet cavity is respectively provided with a baffle and a return spring, which are used for shielding the air inlet port and can move back and forth relative to the air inlet port, in the initial state, the baffle plate shields the air inlet port, and the return spring enables the baffle plate to have the tendency of moving towards the direction of the air inlet port to press the air inlet port. When forming certain negative pressure like this in the inner bag, the both sides of baffle form certain pressure differential, and this pressure differential overcomes reset spring and makes the baffle remove towards the direction of keeping away from the inlet port, the inlet port is opened, and, because the distance of exhaust gas outlet and exhaust passage's air intake is less than the distance of each exhaust gas inlet and exhaust passage's air intake respectively, consequently, the gas that gets into the chamber of admitting air by the exhaust gas outlet is dry air, this air gets into the chamber of admitting air this moment, the rethread chamber of admitting air's the outlet port of giving vent to anger and the return-air inlet of inner bag and flow back to in the inner bag. On the one hand, supply the interior atmospheric pressure of inner bag, on the other hand makes the inner bag in remaining steam up spread, and then continuously taken out by the air pump, finally after a period, the steam content in the inner bag is minimum, no longer has a large amount of steam to pounce on the face when the user opens the door and comes, user experience can promote.
The air inlet cylinder is characterized by further comprising an air inlet cylinder with a cylindrical shape, the inner cavity of the air inlet cylinder forms the air inlet cavity, the first end of the air inlet cylinder is provided with the air inlet port, the second end of the air inlet cylinder is provided with the air outlet port, the second inner end face of the air inlet cylinder is axially fixed with an installation rod, the free end of the installation rod is opposite to the air inlet port, the baffle plate is connected to the installation rod in a sleeved mode and can move back and forth along the installation rod, and the reset spring is connected to the installation rod in a sleeved mode and limited between the baffle plate and the second inner end face of the air inlet cylinder. On one hand, the baffle and the return spring can be stably installed, and on the other hand, the baffle can better move back and forth relative to the air inlet port through the guide of the installation rod.
Further, the inlet port is provided in the center of the first end wall of the inlet cylinder, the mounting rod is provided along the central axis direction of the inlet cylinder, and the outlet port is provided eccentrically in the second end wall of the inlet cylinder. Make things convenient for the setting of above-mentioned installation pole, reset spring and baffle on the one hand, on the other hand enables during air gets into the chamber of admitting air more smoothly through exhaust gas outlet and inlet port, enables the air that gets into in the chamber of admitting air simultaneously and discharges through the port of giving vent to anger more smoothly.
Furthermore, the exhaust channel and the air inlet cylinder are both arranged above the inner container, the air inlet cylinder is arranged from the first end to the second end of the air inlet cylinder in an upward inclined mode, the air outlet is provided with an air outlet joint, the air outlet joint is connected with the air inlet port in an inserted mode, the baffle plate can shield the interface of the air outlet joint, and therefore air in the air inlet cavity can be discharged through the air outlet port more smoothly.
Further, the direction that sets up of the first gas vent of inner bag is mutually perpendicular with the second gas vent to can enable steam to form the steam circulation of steady flow better between first gas vent and second gas vent in the intensification stage, avoid steam to increase the formation of comdenstion water at the inside turbulent flow of inner bag, cause the energy efficiency of steam extravagant, and this first gas vent and second gas vent set up highly all to be higher than above-mentioned return air port, thereby when the culinary art was finished, the air that gets into by the return air port can drive the air that remains in the inner bag better toward inner bag upper portion diffusion.
Furthermore, the first exhaust port is arranged on the side wall of the inner container, and the second exhaust port and the air return port are respectively arranged on the back plate of the inner container, so that the pipeline connection is facilitated.
Further, first exhaust air inlet and second exhaust air inlet set up side by side along exhaust passage's air intake to air outlet direction interval, and the distance between first exhaust air inlet and the air intake is less than the distance between second exhaust air inlet and the air intake, and the culinary art is ended like this, and when the air pump opened the air exhaust function, the residual steam in the inner bag can get into exhaust passage through second exhaust air inlet more fast to the air outlet through exhaust passage is outer arranging.
Further, an upper mounting plate is arranged above the inner container, an air deflector is covered on the upper surface of the upper mounting plate, the air deflector and the upper surface of the upper mounting plate enclose the exhaust channel, the first exhaust air inlet and the second exhaust air inlet are respectively arranged on the upper mounting plate, the exhaust fan comprises a volute casing and an impeller arranged in the volute casing, and the exhaust air outlet is arranged on the side wall of the volute casing. On the one hand, the steam can be prevented from being brought into the air inlet cavity to the greatest extent, and on the other hand, the air can enter the air inlet cavity at a certain flow rate, so that the reflux speed is increased, and the outward discharge speed of the residual steam in the inner container after cooking is finished is further increased.
The technical solution adopted to further solve the third technical problem is as follows: a steaming cooking device characterized by having the exhaust structure of the steaming household appliance as described above.
Compared with the prior art, the invention has the advantages that: the inner container is respectively provided with a first exhaust port and a second exhaust port, a first exhaust air inlet and a second exhaust air inlet are respectively arranged in an exhaust channel, the first exhaust air inlet and the second exhaust air inlet are covered with air guide covers, and in addition, an air pump with air suction and exhaust functions is arranged. The heat stage of function evaporates like this, the exhaust function of air pump opens, steam in the inner bag is through first gas vent and first exhaust air inlet and in the air guide cover that admits air, and steam in the entering air guide cover flows back to the inner bag through second exhaust air inlet and second gas vent under the exhaust function's of air pump effect, thereby realize the circulation of heat stage steam, improve the utilization ratio of steam, reduce outer steam discharge volume, accelerate the programming rate of inner bag. And when the culinary art ended, exhaust fan continued work, and the air exhaust function of air pump is opened, in passing through second exhaust air inlet suction air guide cover with the surplus steam in the inner bag, under exhaust fan air-out's effect, steam in the air guide cover is arranged outward through exhaust passage's air outlet, and the high temperature steam in the inner bag gushes out and directly spouts the user when avoiding opening the door.
Drawings
FIG. 1 is a schematic structural diagram of a steaming cooking device according to an embodiment of the present invention;
FIG. 2 is a schematic view showing the structure in the other direction of FIG. 1 (with the piping in FIG. 1 omitted);
FIG. 3 is a sectional view of the steaming cooking apparatus in a state where an air inlet port is closed according to the embodiment of the present invention;
fig. 4 is a sectional view of the steaming cooking apparatus in a state where an air inlet port is opened according to the embodiment of the present invention;
FIG. 5 is another cross-sectional view of a steaming cooking device in an embodiment of the present invention;
FIG. 6 is an enlarged view of portion A of FIG. 3;
fig. 7 is an enlarged view of a portion B in fig. 4.
Detailed Description
The invention is described in further detail below with reference to the following examples of the drawings.
As shown in fig. 1 to 7, a steaming cooking device (for example, a steam box, a steaming and baking integrated machine, etc.) comprises an exhaust structure, the exhaust structure comprises an inner container 1 and an exhaust passage 30, an exhaust port is provided on the inner container 1, the exhaust passage 30 has an exhaust inlet, and an exhaust fan 31 is installed on an air inlet 301 of the exhaust passage 30. Specifically, an upper mounting plate 2 is disposed above the inner container 1, an air guide plate 3 is covered on the upper surface of the upper mounting plate 2, the air guide plate 3 and the upper surface of the upper mounting plate 2 define the exhaust passage 30, the exhaust air inlet is opened on the upper mounting plate 2, the exhaust fan 31 includes a volute casing 311 and an impeller 312 installed in the volute casing 311, and a top heating pipe 15 is installed on the inner top surface of the inner container 1.
Further, the exhaust structure further includes an air pump 5 having air pumping and exhausting functions, the exhaust port includes a first exhaust port 11 and a second exhaust port 12, the exhaust inlet includes a first exhaust inlet 21 and a second exhaust inlet 22 respectively opened on the upper mounting plate 2, and the exhaust channel 30 is covered with an air guide cover 6 at the first exhaust inlet 21 and the second exhaust inlet 22, one end of the air guide cover 6 has an air guide opening 61, and the air guide opening 61 faces the air outlet 302 direction of the exhaust channel 30. Specifically, in the present embodiment, the air guide cover 6 has a square shape, and the front side of the air guide cover 6 is opened to form the air guide opening 61. Wherein the first exhaust port 11 is in fluid communication with the first exhaust gas inlet 21, the second exhaust port 12 is in fluid communication with a gas inlet 51 of the gas pump 5 and a gas outlet 52 of the gas pump 5 is in fluid communication with the second exhaust gas inlet 22. In the present embodiment, the first exhaust port 11 communicates with the first exhaust gas inlet port 21 through a first exhaust pipe (not shown), the second exhaust port 12 communicates with the gas inlet port 51 through a first gas pipe 71, and the gas outlet port 52 communicates with the second exhaust gas inlet port 22 through a second gas pipe (not shown).
When cooking is finished, the residual steam in the inner container 1 is discharged outside through the air extracting function of the air pump 5, when the steam in the inner container 1 is reduced to a certain degree, a certain negative pressure is formed inside the inner container 1 relative to the exhaust passage 30, at this time, the air pump 5 cannot continuously extract the residual steam in the inner container 1, further, the cooking oven further comprises an air inlet cavity 40, two ends of the air inlet cavity 40 are respectively provided with an air inlet port 401 and an air outlet port 402, the inner container 1 is further provided with an air return port 13, the exhaust passage 30 is further provided with an air outlet port 3111, the distance between the air outlet port 3111 and the air inlet 301 of the exhaust passage 30 is respectively smaller than the distance between each air outlet port and the air inlet 301 of the exhaust passage 30, the air inlet port 401 of the air inlet cavity 40 is in fluid communication with the air outlet port 3111, and the air outlet port 402 is in fluid communication with the air return port 13 (specifically, in this embodiment, the air return pipe 72 is used for communication), the intake chamber 40 is provided with a shutter 42 and a return spring 43, respectively, for covering the intake port 401 and being movable back and forth with respect to the intake port 401, and in an initial state, the shutter 42 covers the intake port 401, and the return spring 43 causes the shutter 42 to have a tendency to move toward the intake port 401 (i.e., move downward in this embodiment) to press the intake port 401. Thus, when a certain negative pressure is formed in the inner container 1, a certain pressure difference is formed on both sides of the baffle plate 42, and the pressure difference overcomes the return spring 43 to move the baffle plate 42 in a direction away from the air inlet port 401 (i.e., upward movement in this embodiment), the air inlet port 401 is opened, and since the distance between the exhaust outlet 3111 and the air inlet 301 of the exhaust passage 30 is respectively smaller than the distance between each exhaust inlet and the air inlet 301 of the exhaust passage 30, the air entering the air inlet cavity 40 from the exhaust outlet 3111 is dry air, and at this time, the air enters the air inlet cavity 40 and then flows back to the inner container 1 through the air outlet port 402 of the air inlet cavity 40 and the air return port 13 of the inner container 1. On the one hand, supply to the interior atmospheric pressure of inner bag 1, on the other hand makes remaining steam up spread in the inner bag 1, and then continuously takes out by air pump 5, and finally after a period of time, the steam content in the inner bag 1 is minimum (nearly remove completely), and the user does not have a large amount of steam to pounce on the face when opening the door and comes, and user experience can promote.
The air inlet cavity 40 may have a plurality of specific implementation manners, in this embodiment, the air inlet cavity further includes an air inlet cylinder 4 having a cylindrical shape, an inner cavity of the air inlet cylinder 4 forms the air inlet cavity 40, the first end of the air inlet cylinder 4 is provided with the air inlet port 401, the second end of the air inlet cylinder 4 is provided with the air outlet port 402, the second inner end surface of the air inlet cylinder 4 is axially fixed with an installation rod 41, a free end of the installation rod 41 is opposite to the air inlet port 401, the baffle 42 is sleeved on the installation rod 41 and can move back and forth along the installation rod 41, and the return spring 43 is sleeved on the installation rod 41 and is limited between the baffle 42 and the second inner end surface of the air inlet cylinder 4. On the one hand, a secure mounting of the blocking plate 42 with the return spring 43 can be achieved, and on the other hand, the blocking plate 42 can be moved back and forth better relative to the intake port 401 by the guidance of the mounting rod 41. Preferably, the inlet port 401 is opened at the center of the first end wall of the inlet cylinder 4, the mounting rod 41 is disposed along the central axis direction of the inlet cylinder 4, and the outlet port 402 is opened eccentrically on the second end wall of the inlet cylinder 4. On one hand, the installation of the installation rod 41, the return spring 43 and the baffle plate 42 is facilitated, on the other hand, air can enter the air inlet cavity 40 more smoothly through the exhaust air outlet 3111 and the air inlet port 401, and meanwhile, air entering the air inlet cavity 40 can be discharged more smoothly through the air outlet port 402.
In this embodiment, the air cylinder 4 is disposed above the inner container 1, the air cylinder 4 is disposed to be inclined upward from a first end to a second end thereof, the exhaust outlet 3111 is provided with an outlet fitting 3112, the outlet fitting 3112 is inserted into the air inlet port 401, and the baffle plate 42 can shield an interface of the outlet fitting 3112, so that the air in the air inlet chamber 40 can be discharged through the outlet port 402 more smoothly. Also, when the humidity of the air entering from the air inlet 301 of the air discharging passage 30 is high (generally, the air is dry, but in a special condition or a special environment, there is a possibility that the humidity is high, such as a humid environment, cooking food with a high water content, etc.), the condensed water formed in the air inlet chamber 40 can be collected in the inner cavity of the air inlet cylinder 4, and the condensed water can be heated and evaporated by the residual temperature of the top heating pipe 15 to realize self-cleaning.
Preferably, in this embodiment, the first exhaust port 11 of the inner container 1 is disposed in a direction perpendicular to the second exhaust port 12, so that steam can better form a steam cycle with smooth flow between the first exhaust port 11 and the second exhaust port 12 in the temperature rising stage, and the steam is prevented from being turbulent inside the inner container 1 to increase the formation of condensed water, which results in wasted energy efficiency of steam, and the first exhaust port 11 and the second exhaust port 12 are both disposed at a height higher than the air return port 13, so that when cooking is finished, air entering from the air return port 13 can better drive the air remaining in the inner container 1 to diffuse toward the upper portion of the inner container 1. Specifically, the first exhaust port 11 is formed on the sidewall of the liner 1, and the second exhaust port 12 and the return port 13 are formed on the back plate of the liner 1, respectively, so as to facilitate the pipe connection.
Further, in this embodiment, the first exhaust air inlet 21 and the second exhaust air inlet 22 are arranged in parallel at intervals along the direction from the air inlet 301 to the air outlet 302 of the exhaust channel 30, and the distance between the first exhaust air inlet 21 and the air inlet 301 is smaller than the distance between the second exhaust air inlet 22 and the air inlet 301, so that after cooking is finished, when the air pump 5 starts the air pumping function, the residual steam in the inner container 1 can more quickly enter the exhaust channel 30 through the second exhaust air inlet 22, and is discharged outside through the air outlet 302 of the exhaust channel 30. Further, the exhaust air outlet 3111 is provided in a side wall of the volute housing 311. On one hand, the steam can be prevented from being brought into the air inlet cavity 40 to the greatest extent, and on the other hand, the air can enter the air inlet cavity 40 at a certain flow rate, so that the backflow speed is increased, and the discharge speed of the residual steam in the inner container 1 after the cooking is finished is further increased.
The working process of the invention is as follows:
when the steaming function is started, the heating plate 14 at the bottom of the inner container 1 starts to work, the generated steam slowly fills the inner container 1, and the temperature of the inner container 1 starts to rise. Meanwhile, part of steam enters the air guide cover 6 through the first exhaust port 11 and the first exhaust air inlet 21 of the inner container 1, the steam temperature of the inner container 1 does not drop obviously (the air guide cover 6 has a blocking effect on the air outlet of the exhaust fan 31), meanwhile, the air pump 5 starts an exhaust function, and the steam in the air guide cover 6 is pumped back into the inner container 1 through the second exhaust air inlet 22, so that the cyclic utilization of the externally-exhausted steam is realized. Therefore, in the temperature rising stage of the steaming function (namely the process that the temperature of the inner container 1 rises from the initial temperature to the set cooking temperature), the steam utilization rate can be improved, and the amount of discharged steam is reduced.
When the steaming function is finished, the air pump 5 starts the air pumping function, and the residual steam in the liner 1 is pumped to the second exhaust air inlet 22 quickly and is finally cooled and discharged under the action of the air outlet of the exhaust fan 31. During the air pumping process of the air pump 5, the steam in the inner container 1 is slowly reduced, when the steam in the inner container 1 is reduced to a certain amount, a certain negative pressure is formed inside the inner container 1, and the air pump 5 can not work to continuously pump air at the moment. Meanwhile, the air pressure at the exhaust air outlet 3111 is higher than the internal pressure of the liner 1, a certain pressure difference is formed between two sides of the baffle 42 to overcome the action of the spring 43, the baffle 42 faces upwards along the installation rod 41, the air inlet port 401 of the air inlet cavity 40 is opened, at the moment, the air at the air inlet 301 of the exhaust passage 30 starts to enter the air inlet cavity 40 and sequentially passes through the air outlet port 402 of the air inlet cavity 40, the air returning port 13 of the liner 1 enters the bottom of the liner 1, the air entering the liner 1 supplements the internal air pressure of the liner 1 on the one hand, on the other hand, the residual steam in the liner 1 after being pumped by the air pump 5 diffuses upwards and is continuously pumped by the air pump 5, finally, after a period of time, the content of the steam in the liner 1 is small (nearly completely removed), a large amount of steam does not exist when a user opens the door, and the use experience of the user is improved.
The term "fluid communication" as used herein refers to a spatial relationship between two components or portions (hereinafter collectively referred to as a first portion and a second portion, respectively), i.e., a fluid (gas, liquid or a mixture of both) can flow from the first portion along a flow path or/and be transported to the second portion, and may be a direct communication between the first portion and the second portion, or an indirect communication between the first portion and the second portion via at least one third member, such as a fluid channel, e.g., a pipe, a channel, a conduit, a flow guide, a hole, a groove, or a chamber that allows a fluid to flow therethrough, or a combination thereof.
Claims (9)
1. An exhaust structure of a steaming household appliance comprises a liner (1) with an exhaust port and an exhaust channel (30) with an exhaust inlet, wherein an exhaust fan (31) is arranged at an air inlet (301) of the exhaust channel (30), and the exhaust structure is characterized by further comprising an air pump (5) with air pumping and exhausting functions, the exhaust port comprises a first exhaust port (11) and a second exhaust port (12), the exhaust inlet comprises a first exhaust inlet (21) and a second exhaust inlet (22), the exhaust channel (30) is covered with an air guide cover (6) at the first exhaust inlet (21) and the second exhaust inlet (22), one end of the air guide cover (6) is provided with an air guide port (61), the air guide port (61) faces to the direction of an air outlet (302) of the exhaust channel (30), wherein the first exhaust port (11) is in fluid communication with the first exhaust inlet (21), the second exhaust port (12) is in fluid communication with the gas inlet (51) of the gas pump (5) and the gas outlet (52) of the gas pump (5) is in fluid communication with the second exhaust gas inlet (22),
the inner container (1) is also provided with an air return port (13), the exhaust channel (30) is also provided with an exhaust outlet (3111), the distance between the exhaust outlet (3111) and an air inlet (301) of the exhaust channel (30) is respectively smaller than the distance between each exhaust inlet and the air inlet (301) of the exhaust channel (30), the air inlet port (401) of the air inlet cavity (40) is communicated with the exhaust outlet (3111) in a fluid manner, the air outlet port (402) is communicated with the air return port (13) in a fluid manner, the air inlet cavity (40) is respectively provided with a baffle plate (42) and a return spring (43) which are used for shielding the air inlet port (401) and can move back and forth relative to the air inlet port (401), and the baffle plate (42) shields the air inlet port (401) in an initial state, the return spring (43) causes the baffle (42) to have a tendency to move toward the intake port (401) and press the intake port (401).
2. The exhaust structure of a steaming household appliance according to claim 1, further comprising an intake cylinder (4) having a cylindrical shape, wherein an inner cavity of the intake cylinder (4) forms the intake chamber (40), the intake cylinder (4) has the intake port (401) opened at a first end and the exhaust port (402) opened at a second end, a mounting rod (41) is axially fixed to the second inner end of the intake cylinder (4), a free end of the mounting rod (41) is opposite to the intake port (401), the baffle (42) is sleeved on the mounting rod (41) and can move back and forth along the mounting rod (41), and the return spring (43) is sleeved on the mounting rod (41) and is limited between the baffle (42) and the second inner end of the intake cylinder (4).
3. The exhaust structure of a steaming home appliance according to claim 2, wherein the inlet port (401) is opened at a center of a first end wall of the inlet cylinder (4), the mounting rod (41) is disposed in a direction of a central axis of the inlet cylinder (4), and the outlet port (402) is opened eccentrically on a second end wall of the inlet cylinder (4).
4. The exhaust structure of the steaming home appliance according to claim 2, wherein the exhaust passage (30) and the intake cylinder (4) are disposed above the inner container (1), the intake cylinder (4) is disposed to be inclined upward from the first end to the second end thereof, an outlet connector (3112) is disposed on the exhaust outlet (3111), the outlet connector (3112) is inserted into the inlet port (401), and the baffle plate (42) shields an interface of the outlet connector (3112).
5. The exhaust structure of a steaming household appliance according to any one of claims 1 to 4, wherein the first exhaust port (11) of the inner container (1) is arranged in a direction perpendicular to the second exhaust port (12), and the first exhaust port (11) and the second exhaust port (12) are arranged at a height higher than the return air port (13).
6. The exhaust structure of a steaming home appliance according to claim 5, wherein the first exhaust port (11) is opened on a side wall of the inner container (1), and the second exhaust port (12) and the return air port (13) are opened on a back plate of the inner container (1), respectively.
7. Exhaust structure of a steaming household appliance according to any one of claims 1 to 4, wherein the first exhaust air inlet (21) and the second exhaust air inlet (22) are arranged in parallel and spaced along the direction from the air inlet (301) to the air outlet (302) of the exhaust channel (30), and the distance between the first exhaust air inlet (21) and the air inlet (301) is smaller than the distance between the second exhaust air inlet (22) and the air inlet (301).
8. The exhaust structure of the steaming household appliance according to any one of claims 1 to 4, wherein an upper mounting plate (2) is disposed above the inner container (1), an air deflector (3) is disposed on an upper surface of the upper mounting plate (2), the air deflector (3) and an upper surface of the upper mounting plate (2) define the exhaust passage (30), the first exhaust air inlet (21) and the second exhaust air inlet (22) are respectively disposed on the upper mounting plate (2), the exhaust fan (31) comprises a volute casing (311) and an impeller (312) mounted in the volute casing (311), and the exhaust air outlet (3111) is disposed on a side wall of the volute casing (311).
9. A steaming cooking apparatus having an exhaust structure of a steaming household appliance as claimed in any one of claims 1 to 8.
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| CN113545661A (en) | 2021-10-26 |
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