CN114847768A - Cooking apparatus and purification device therefor - Google Patents

Abstract

The invention belongs to the technical field of kitchen electrical equipment, and particularly provides cooking equipment and a catalytic purification device for the cooking equipment, wherein the cooking equipment comprises: 1) a cooking body having a cooking chamber; 2) a cooking medium supply part; and 3) a purification section including the catalytic purification device, the catalytic purification device including: a housing formed with a decontamination chamber; wherein the housing has a communication structure so as to: cooking medium in the cooking chamber can enter the purifying chamber through the communication structure; a catalytic module housed within the decontamination chamber, the catalytic module being capable of decontaminating a cooking medium adjacent to and/or flowing therethrough; and a heating member capable of heating the catalytic module, and at least a portion of the heating member is in the purification chamber in an assembled state. With this configuration, the cooking medium can be purified by the catalytic purification device disposed separately.

Description

Cooking apparatus and purification device therefor

Technical Field

The invention relates to the technical field of kitchen electrical equipment, in particular to cooking equipment and a purifying device for the cooking equipment.

Background

With the overall development of technologies related to the field of household appliances, household appliances are developed on two aspects of enrichment and refinement. As one of home appliances, electric cooking appliances are mainly cooking appliances for preserving, processing, and the like food materials, and with the development of enrichment and refinement, for example, in addition to a conventional gas range, a refrigerator, a microwave oven, and the like, specific forms corresponding to various cooking modes such as steaming, baking, frying, air-frying, and the like are also emerging.

Taking the hot air oven as an example, the working principle of the hot air oven is to use the circulating hot air flow to cook food materials. Specifically, along with the circulating flow of hot air flow in the liner where the food to be cooked is located, when the hot air flow flows through the food to be cooked, heat carried in the hot air flow can be transferred to the surface of the food to be cooked, and the food to be cooked can be processed in a hot air baking cooking mode by correspondingly controlling parameters such as the flow rate and the temperature of the hot air flow.

Since the food material to be cooked usually contains grease or has an additive such as grease added thereto before cooking. Thus, the hot air flow often has a cleanliness problem during cooking of the food material to be cooked. In order to solve the problem, a product form of adding a purification module in the form of honeycomb ceramics and the like to a hot air oven is available on the market, however, at present, the purification module is usually accompanied with purification after being fixed to a certain position (such as a position close to a heating coil or a fan), the realization of the purification effect is often dependent on the existing components of the oven (such as heat emitted by the heating coil and circulating wind power provided by the fan) and the arrangement position thereof, and a certain lifting space still exists for the independent realization of the purification capacity.

Accordingly, there is a need in the art for a new solution to the above problems.

Disclosure of Invention

Technical problem

The present invention has been made to solve at least the above-mentioned problems to some extent.

Technical scheme

In view of the above, a first aspect of the present invention provides a catalytic purification apparatus for a cooking device, the cooking device comprising: 1) a cooking body having a cooking chamber in which food to be cooked can be placed; 2) a cooking medium supply part capable of dispensing a cooking medium having ingredients capable of being cooked to the cooking chamber; and 3) a purification section including the catalytic purification device, the catalytic purification device including: a housing formed with a decontamination chamber; wherein the housing has a communication structure at least at a position near the cooking chamber so as to: cooking medium in the cooking chamber can enter the purifying chamber through the communication structure; a catalytic module received in the decontamination chamber, the catalytic module being capable of decontaminating the cooking medium proximate to and/or flowing therethrough; and a heating member capable of heating the catalytic module, and at least a portion of the heating member is in the purification chamber in an assembled state.

With this configuration, the components such as soot in the cooking medium can be chemically decomposed and purified by the catalytic purification device disposed separately. It is understood that the specific form of the cooking medium can be determined by those skilled in the art according to actual needs, such as steam (e.g. the cooking device is a steam box or a "steaming" function in a steam oven), hot air (e.g. the cooking device is an oven or an "baking" function in a steam oven), etc.

It will be appreciated that the number of catalytic converters, the specific structure, the purifying principle of the cooking medium, the specific orientation of the cooking apparatus, the installation in the corresponding orientation, etc. can be determined by those skilled in the art according to actual requirements. Such as a catalytic purification device, may effect purification of the cooking medium by physical adsorption/entrapment, chemical decomposition, or a combination thereof. Illustratively, the catalytic purification device is composed of a plurality of single bodies which can purify the cooking medium, wherein one part of the plurality of single bodies is fixedly arranged on the cooking device, and the other part of the plurality of single bodies is movably or removably arranged on the cooking device.

Specifically, since the catalytic converter includes the constituent elements capable of independently performing the purification process of the cooking medium, the installation position of the catalytic converter on the cooking device, the purification start timing, and the like are not restricted by the structure of the cooking device, and thus it is expected that the purification process of the cooking medium can be more flexibly performed. Therefore, the catalytic purification device containing the catalytic module can be flexibly fixed to any reasonable position of the cooking device according to actual requirements, such as: the cooking equipment is provided with a plurality of mounting positions, and the catalytic purification device can be fixed at any one of the mounting positions; the catalytic purification device can be movably arranged on one installation part in a rotating, sliding and other modes, and the purification capacity of the catalytic purification device on the cooking medium can be different when the catalytic purification device is in different postures; and the like. Furthermore, although the catalytic cleaning device can independently perform its cleaning function for the cooking medium, it still allows for a connection or functional association with existing components of the cooking appliance. In the case where the cooking device is an oven, the oven is usually configured with one or more heating pipes, and the catalytic purification device may be disposed adjacent to the heating pipes.

Furthermore, in the assembled state, at least a part of the catalytic cleaning device (e.g. the part provided with the communication structure) should be able to be exposed to the cooking chamber. It will be appreciated that the manner in which it is disposed on the cooking body and its extent and manner of exposure to the cooking chamber may be determined by those skilled in the art according to actual needs. For example, the catalytic cleaning device is movably (e.g. telescopically) disposed in the cooking body, and when the active cleaning function of the catalytic cleaning device needs to be activated, the catalytic cleaning device is extended into the cooking chamber, otherwise, the catalytic cleaning device is retracted to a state with a small exposure range or no exposure. More specifically, for example, in a case where the cooking body has an installation space provided with a closing plate, by retracting the catalytic converter into the installation space and closing it by the installation space such as the closing plate, complete non-exposure of the catalytic converter can be achieved.

With regard to the catalytic cleaning device for a cooking apparatus described above, in one possible embodiment, the cleaning portion further includes: a first guide portion capable of guiding the cooking medium close to and/or through the catalytic cleaning device for cleaning the cooking medium.

With this configuration, a specific form of the purification section is given.

It is understood that, on the premise that the corresponding guiding function can be realized, a person skilled in the art may determine the structural form and the number of the first guiding portion, the guiding manner adopted by the first guiding portion, the guiding path corresponding to the guiding, and the like according to actual requirements. For example, the first guide portion may include one or more components that may guide the cooking medium by physical guidance (e.g., adding channels or guide plates, etc.), aerodynamic guidance (e.g., changing the direction, flow rate, etc. of the medium to bring it closer to or longer in a location corresponding to the catalytic converter, etc.), etc.

With regard to the catalytic cleaning device for a cooking apparatus described above, in one possible embodiment, the first guide portion includes: a first fan provided to the cooking body so as to: under the action of the first fan, the cooking medium in the cooking chamber is guided to a position close to the catalytic purification device.

With this configuration, a specific form of the first guide portion is given.

Specifically, the cooking medium can be guided to the position of the catalytic purification device by the active guidance of the first fan, and thus can be sufficiently purified.

It can be understood that, a person skilled in the art can determine the starting time of the first fan according to actual requirements to determine the guiding starting time for purifying the cooking medium, and can determine the operation parameters of the first fan according to actual requirements to determine the guiding purifying strength for purifying the cooking medium, for example, the cooking medium in the cooking chamber is purified periodically during the cooking program of the cooking apparatus.

In addition, it can be understood that a person skilled in the art can determine the number of the first fans, the arrangement positions of the first fans on the cooking body, the connection/position relationship between the first fans and the catalytic purification device, and the like according to actual requirements. Illustratively, one or more first fans are arranged along the circumferential direction of the catalytic purification device, or the first fan is arranged on one side of the catalytic purification device far away from the cooking chamber. Catalytic purification device can be connected with the fan, also can be fixed to on other parts such as culinary art main part to the two is fixed to be set up in the culinary art main part as an example, and the specific fixed connection mode can be confirmed according to actual demand to the skilled person in the art, for example catalytic purification device is fixed to the culinary art main part through the spiro union mode to top or lateral part etc. of culinary art main part in the mode card of embedding, and first fan passes through the spiro union mode and fixes to the culinary art main part.

With regard to the catalytic cleaning device for a cooking apparatus as described above, in one possible embodiment, the housing has an opening at a position close to the first fan, and the opening and the first fan are engaged with each other.

With this configuration, a specific configuration of the purification unit is given.

It should be noted that the connection manner may be a case including physical connection/abutment, or a case not including physical connection/abutment (such as alignment). Illustratively, the two do not produce a direct physical connection but rather each have a connection with an intermediate component.

With regard to the catalytic cleaning device for a cooking apparatus as described above, in a possible embodiment, the housing extends or is provided with a first pipe section at a position corresponding to the opening in a direction close to the air inlet of the first fan, and the cooking body is provided with a second pipe section at a position corresponding to the air inlet of the first fan, wherein the first pipe section and the second pipe section are connected and/or aligned with each other.

Through the structure, a specific connection mode of the first fan and the catalytic purification device is provided.

It is understood that the specific form of the first/second pipe section, the arrangement manner of the first/second pipe section on the cooking device, the connection relationship between the first/second pipe section and the cooking device, etc. can be determined by those skilled in the art according to actual requirements. For example, the first/second pipe sections may be connected to the respective base part in an integrally formed or fixedly connected manner, they may be spaced apart or arranged close to each other in an aligned manner, and in a connected manner, such as a socket joint, a tongue joint, etc., in the case of a connection. Illustratively, the first tube segment is integrally formed with the housing and the second tube segment is aligned with and secured to other structure of the cooking appliance other than the first fan.

To the catalytic purification device for cooking equipment, in a possible implementation manner, the cooking main body includes a second fan, the second fan is used for dissipating heat of an element in the cooking equipment, the second fan is configured with a heat dissipation air duct, a mounting area is reserved in a position of the cooking equipment corresponding to the heat dissipation air duct, and the first fan is arranged in the mounting area.

By such a configuration, a specific installation form of the first fan is given.

If in a normal situation, the second fan is a cross-flow fan arranged on the top of the cooking body, and under the action of the cross-flow fan, heat dissipation can be performed on electrical elements and the like in the cooking device. In the present invention, the first fan supporting the purification function exclusively in addition to the second fan is disposed in the purification unit, and the purification effect of the active cooking medium aimed by the present invention can be ensured in advance without intersecting with the original smoke exhausting function.

With regard to the catalytic cleaning device for a cooking apparatus described above, in one possible embodiment, the cleaning portion further includes: a second guide portion capable of forming a guide path for the cooking medium processed by the purifying portion away from the purifying portion.

With this configuration, a specific configuration of the purification unit is given.

It is understood that, on the premise that the corresponding guiding function can be realized, a person skilled in the art may determine the structural form, the number and the arrangement position of the second guiding portion on the cooking apparatus, the corresponding guiding manner, the guiding path corresponding to the guiding manner, and the like according to actual requirements. For example, the second guide portion may be adapted to direct the cleansed cooking medium away from the catalytic cleansing device in a manner similar to or different from the first guide portion described above. For example, the second guide portion makes the cooking medium detour to the catalytic purification apparatus again after being away from the catalytic purification apparatus, so as to perform secondary purification and the like on the cooking medium.

In a possible embodiment, the second guide portion comprises a duct, the downstream side of which is able to dispense the decontaminated cooking medium to the respective location.

It will be appreciated that, similar to the aforementioned "the opening and the first fan engage with each other", the engagement between the upstream side of the duct and the outlet of the first fan, and the downstream side of the duct (the launch opening) and the structure corresponding to the target location may or may not be achieved by direct physical connection.

With the catalytic cleaning device for a cooking apparatus described above, in one possible embodiment, the downstream side of the second guiding portion, viewed in the flow direction of the cooking medium, comprises at least one issue port capable of issuing the cooking medium to a target position corresponding thereto.

With such a configuration, the arrangement of the downstream side of the second guide portion is given.

It will be appreciated that the number of dispensing ports, the dispensing path, the specific definition of the target location to be dispensed and the location of the target location relative to the cooking chamber, etc., may be determined by one skilled in the art based on actual requirements. For example, the target location may be external, central, or internal to the cooking device, and the cooking medium at the target location may be used directly, after reheating, or no longer for the cooking medium. Illustratively, the cooking device is an oven, and the target location may be a location near the heating tube (which may be considered a middle portion of the cooking device, an outer portion of the cooking chamber) such that the portion of the cooking medium may be reheated and reused as a cooking medium. Such as the discharge opening of the second guide portion, is usually a pipe away from the nozzle of the catalytic purification apparatus or a structure added at the nozzle, etc.

With regard to the catalytic cleaning device for a cooking appliance described above, in one possible embodiment, the target location comprises a first target location and/or a second target location, wherein in case the cooking medium is dispensed to the first target location, the cleaned cooking medium can be discharged to the environment outside the cooking appliance; wherein the cooking medium after the purification treatment can be dispensed to the cooking chamber again in a state that the cooking medium is dispensed to the second target position.

With this configuration, the cleanliness of the cooking medium can be ensured even when the cooking medium is discharged to different target positions.

In particular, in case the cooking medium is discharged to the first target location, the air quality to the external environment such as the kitchen where the cooking apparatus is located is reduced, thus improving the user experience. In case of discharging the cooking medium to the second target position, it is possible to make the cooking medium have a quality with good cleanliness when cooking the material to be cooked again, thus optimizing the use performance of the cooking apparatus.

It is understood that the timing and duration of the dispensing of the cooking medium to the first target position and the second target position, and parameters such as the flow rate during the dispensing process can be determined by those skilled in the art according to actual needs.

It is understood that a person skilled in the art may determine the specific position of the first/second target positions relative to the cooking device, the number of the first/second target positions, the relative position between the first/second target positions, the specific path for the cooking medium to reach the first/second target positions, etc. according to actual requirements. Still taking the example where the aforementioned target positions include A, B, C three positions within the cooking chamber, the second target position in this case includes three.

It is understood that the specific structure depending on which cooking medium is switched between the two dispensing paths may be determined by those skilled in the art according to actual requirements, such as that the two dispensing paths are independent of each other and thus can be switched without interference, or that the communication state of the two dispensing paths is switched by one switching part. If the first target position includes a and the second target position includes B, C two positions, the second guide portion includes three paths corresponding to the three positions, each path is provided with a valve for adjusting the path, such as communication, non-communication, partial communication, etc., and the three valves constitute a switching portion.

A second aspect of the invention provides a cooking apparatus comprising a catalytic cleaning device for a cooking apparatus as claimed in any preceding claim.

It can be understood that the cooking device has all the technical effects of the catalytic purification device for the cooking device, which are not described in detail herein. Such as a steamer, oven, or other cooking device (e.g., various forms of kiosk, etc.) that includes steaming and/or baking functionality.

Drawings

The cooking apparatus of the present invention will be described below with reference to the accompanying drawings in conjunction with a hot air oven (hereinafter referred to as an oven). In the drawings:

FIG. 1 is a first structural schematic diagram of an oven according to an embodiment of the present invention, showing the installation position of a catalytic purification device;

FIG. 2 illustrates a second structural view of the oven of one embodiment of the present invention, with the top outer side (top cover) of the cooking body removed and thus showing the purge section, crossflow blower, etc.;

FIG. 3 shows a (partial) schematic view of the oven according to an embodiment of the invention, three, with parts exploded between them thus showing the purge section;

FIG. 4 is a schematic structural view (exploded) of a catalytic converter in an oven according to an embodiment of the present invention, which further includes a second section configured with a first fan;

FIG. 5 shows a cross-sectional schematic view of FIG. 4; and

fig. 6 shows a schematic structural view of a hood assembly in an oven according to an embodiment of the present invention.

List of reference numerals

100. An oven; 1. a cooking body; 11. a first back plate; 12. a second back plate; 13. heating a tube; 14. reserving a port; 2. a fan guard assembly; 21. a fan guard; 211. an air return opening; 212. an air supply outlet; 2211. a motor bracket; 222. a fan; 23. a heating coil; 24. a communication port; 3. a purification section; 31. a catalytic purification device; 3111. a housing; 31111. a first tube section; 3112. a bottom case; 312. a catalytic module; 313. a heating member; 3131. a support; 32. a centrifugal fan b; 321. a second tube section; 33. a pipeline; 4. a cross-flow fan; 41. and a heat dissipation air duct.

Detailed Description

Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention. For example, although the present embodiment is described in connection with an oven, this is not intended to limit the scope of the invention, and those skilled in the art may apply the invention in other application scenarios without departing from the principles of the present invention. Such as a steamer or a steam and bake machine, etc.

It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The singular forms "a", "an" and "the" may include the plural forms as well.

Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Furthermore, while numerous specific details are set forth in the following description in order to provide a better understanding of the invention, it will be apparent to those skilled in the art that the invention may be practiced without some of these specific details. In some instances, oven principles and the like, which are well known to those skilled in the art, have not been described in detail in order to not unnecessarily obscure the present invention.

Referring to fig. 1 to 6, fig. 1 is a first structural schematic diagram of an oven according to an embodiment of the present invention, fig. 2 is a second structural schematic diagram of an oven according to an embodiment of the present invention, fig. 3 is a third (partial) structural schematic diagram of an oven according to an embodiment of the present invention, fig. 4 is a structural schematic diagram of a catalytic purification device in an oven according to an embodiment of the present invention, fig. 5 is a sectional schematic diagram of fig. 4, and fig. 6 is a structural schematic diagram of a fan cover assembly in an oven according to an embodiment of the present invention. As shown in fig. 1 to 6, the oven 100 mainly includes a cooking body 1, a fan guard assembly 2, and a purifying part 3. Wherein, the cooking main body 1 is formed with a cooking chamber (e.g., a liner) for containing food to be cooked. If a shelf is arranged in the inner container, the food to be cooked is directly placed on the shelf or placed in a vessel (such as a plate) placed on the shelf. The fan cover component 2 is mainly used for forming circularly flowing hot air flow in the inner container, and cooking food materials to be cooked by taking the hot air flow as a cooking medium. The purifying part 3 is mainly used for purifying the hot air flow as the cooking medium at any time (such as the middle and later cooking) during cooking of the food to be cooked.

In one possible embodiment, the inner container is provided with a door body which can be opened (such as being opened in a vertical pivoting manner or opened in a transverse pivoting manner) at a side close to the operation side of the user (such as the side facing the user, which can be generally referred to as a front side). The liner is provided with a back plate at the side far away from the user (such as the side which can be called as the back side), wherein the back plate comprises a first back plate 11 and a second back plate 12 which are arranged in sequence from front to back, and the inner side of the top of the liner is provided with a heating pipe 13 so as to supplement and heat the hot air flow circulating in the liner. The purifying part 3 is also arranged at the inner side of the top of the inner container.

In a possible embodiment, the fan guard assembly 2 mainly comprises a fan guard 21, a centrifugal fan a and a heating coil 23, a hot air chamber is formed between the front side of the first back plate 11 and the fan guard 21, the fan guard has a return air inlet 211 near the middle thereof, and a supply air outlet 212 is arranged around the circumference of the return air inlet. A centrifugal fan a is arranged in the hot air chamber at a position corresponding to the air return opening, the centrifugal fan a comprises a motor (not shown) and a fan 222, the fan is located in the hot air chamber (the front side of the first back plate), the motor is located at a position corresponding to the hot air chamber (the rear side of the first back plate) of the first back plate, the motor is fixed on the first back plate through a motor support 2211, the motor support is simultaneously fixed on the second back plate 12, and the motor is accommodated in an installation space between the first back plate and the second back plate in an assembled state. The motor rotates to drive the fan to rotate at a position facing the air return opening, and the rotation of the fan can lead the air in the inner container to flow through the air return opening and then to be led into the hot air chamber. A heating coil 23 is also provided in the hot blast chamber at a position corresponding to the return air opening, e.g. a fan is provided in the area encircled by the heating coil. Therefore, under the action of the fan, air in the inner container flows through the air return opening and is sucked into the hot air chamber, the air is heated by the heating coil pipe and is converted into hot air carrying heat, and then the hot air is thrown to the air supply opening on the periphery and is sent into the inner container again. By such circulation, the hot air flow can continuously distribute the air carrying heat to the surface of the food material to be cooked, thereby realizing the main cooking function.

In the present embodiment, the air return opening 211 is a substantially disk-shaped area formed by grid holes, and the air supply opening 212 is a plurality of air supply points surrounding the outside of the disk-shaped area, for example, the plurality of air supply points are substantially arranged around the outside of the disk-shaped area and form a ring-shaped area. Obviously, the specific configuration form of such a return air inlet and an air supply outlet is only a specific example, and those skilled in the art can flexibly adjust according to actual needs, and for example, the air supply outlet may include a plurality of annular regions surrounding the return air inlet and having different radial dimensions, or a plurality of strip-shaped holes arranged at intervals are added at positions of the fan cover outside the annular regions, and the like.

In one possible embodiment, a communication opening 24 is provided as a reserve on both the fan guard and the first back plate which form the fan guard assembly. In this way, after the cooking medium after the purification treatment is sent to the position corresponding to the communication port through the duct 33, the cooking medium can be released again into the inner container to perform the cooking function of the food to be cooked again. Namely: the decontaminated cooking medium is dispensed to a second target location.

In this embodiment, the communication port is located at a position near the bottom of the fan guard assembly, and the duct 33 is vertically disposed and tightly attached to the wall of the first back plate near the outer side, so that the heat emitted by the heating coil included in the fan guard assembly can be effectively utilized to preheat the hot air flowing through the duct and then be emitted to the inner container. In addition the back of inner bag is provided with heat preservation parts such as heat preservation cotton usually, so such setting can reduce effectively because the setting of purification portion causes the oven in the heat loss of culinary art in-process, has consequently reduced because the setting of purification portion has guaranteed the culinary art effect of oven to the influence of the inside temperature field of oven.

In a possible embodiment, the purification section 3 mainly comprises a catalytic purification device 31 mounted to the inside of the top of the liner, which is capable of purifying the hot air flow as it approaches and flows through the catalytic purification device, a centrifugal fan b32 (first fan) constituting a first guide portion, and a duct 33 constituting a second guide portion. The centrifugal fan b is arranged above the catalytic purification device, and can actively guide hot air to approach and flow through the catalytic purification device under the suction action of the centrifugal fan b so as to purify the hot air. The upstream side of the pipeline 33 is directly connected with the air outlet of the centrifugal fan b, so as to guide the hot air flow processed by the catalytic purification device to a position far away from the catalytic purification device, for example, the hot air flow can be directly discharged out of the environment outside the liner or sent back to the liner again to cook the food material to be cooked, or sent back to a position close to the catalytic purification device again to perform secondary purification on the hot air flow and then discharged.

In a possible embodiment, a cross-flow fan 4 (second fan) is arranged between the sandwich layers of the top inner side and the top outer side (top cover) of the inner container, and the main function of the cross-flow fan is heat dissipation. Specifically, the cross-flow fan is provided with a plate-shaped heat dissipation air duct 41 adapted to the axial air intake area of the cross-flow fan. The centrifugal fan b in the purification part is arranged in the middle of the heat dissipation air channel. Specifically, an installation area which is not communicated with the heat dissipation air duct is arranged in an area covered by the heat dissipation air duct, the centrifugal fan b is installed in the installation area, and an air inlet and an air outlet of the centrifugal fan b are respectively connected with (the downstream side of) the catalytic purification device and (the upstream side of) the pipeline.

As in the present embodiment, the downstream side of the duct is guided in a manner corresponding to the first target position: the downstream side of the duct has two issue ports, one of which is connected to the communication port as described above and the other of which is connectable to the heat dissipation duct, so that it is possible to discharge the hot air flow after the purification treatment out of the external environment of the oven through the heat dissipation duct. Namely: the decontaminated cooking medium is dispensed to a first target location.

In one possible embodiment, the catalytic purification apparatus 31 mainly includes a housing formed with a purification chamber, a catalytic module 312 accommodated in the purification chamber, and a heating member 313 specially provided for the catalytic module. Wherein, the shell is provided with a communicating structure at a position close to one side (bottom side) of the inner container, so that hot air in the inner container can enter the purifying chamber through the communicating structure. In this embodiment, a main body portion of the heating member is also accommodated in the purification chamber, and the heating member is fixed to the oven by means of a support 3131.

Illustratively, the housing includes an upper housing 3111 and a lower housing 3112 having a communicating structure (e.g., including a plurality of communicating holes uniformly distributed) therein, the lower portion of the housing is fixed to the top of the inner container by flange connection, and in the installed state, the communicating structure on the lower housing is exposed to the cooking chamber through a reserved opening 14 on the top of the inner container so as to achieve the introduction of the hot air flow. In this way, under the action of the centrifugal fan b, the flow of hot air inside the cooking chamber can be directed to the region close to the communicating structure, then enter inside the casing through the communicating structure and be purified when approaching, in particular, when passing through the catalytic module housed inside the purification chamber.

The catalytic module 312 is generally configured by attaching a catalyst to a carrier that promotes the decomposition of substances such as grease in the hot gas stream. Illustratively, the support is a porous metal skeleton (metal foam) and the catalyst is attached to the support in the form of a coating. Illustratively, the active heating portion of the heating member 313 is housed inside the housing and below the catalytic module.

In one possible embodiment, the catalytic converter is aligned with the centrifugal fan b in the following manner: the top of the housing has an opening, which extends outward in the axial direction of the housing with a first pipe section 31111, and the centrifugal fan b is provided with a second pipe section 321 at a position corresponding to the air inlet of the centrifugal fan b, for example, the second pipe section is fixed to the centrifugal fan b in a flange connection manner, and the first pipe section is sleeved on the outer wall of the second pipe section so as to form a path between the hot air flow from the catalytic purification device to the centrifugal fan b.

It is understood that the structural form of the catalytic converter and the constraint form of the hot air flow from the catalytic converter to the centrifugal fan b are only exemplary descriptions, and those skilled in the art can flexibly adjust the above-mentioned structural form according to actual situations, such as changing two pipe sections into one pipe section which is only integrally formed with the housing but is not fixed to the centrifugal fan b.

It can be seen that in the oven of the present invention, the cooking medium in the oven can be effectively purified by the arrangement of the purifying portion. In addition, the cooking medium can be purified more accurately and flexibly by providing the first fan for the purification part. In addition, through carrying out multiple possible granting with the cooking medium after purifying, can satisfy the performance of oven and promote user experience better. In addition, since the components of the purge part can independently perform the purge process of the cooking medium, it is expected that the purge part can be more flexibly disposed in the oven.

So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.

Claims (10)

1. A catalytic purification apparatus for a cooking device, the cooking device comprising:

1) a cooking body having a cooking chamber in which food to be cooked can be placed;

2) a cooking medium supply part capable of dispensing a cooking medium having ingredients capable of being cooked to the cooking chamber; and

3) a purification section including the catalytic purification apparatus, the catalytic purification apparatus including:

a housing formed with a decontamination chamber;

wherein the housing has a communication structure at least at a position near the cooking chamber so as to:

cooking medium in the cooking chamber can enter the purifying chamber through the communication structure;

a catalytic module housed within the decontamination chamber, the catalytic module being capable of decontaminating a cooking medium adjacent to and/or flowing therethrough; and

a heating member capable of heating the catalytic module, and

in an assembled state, at least a portion of the heating member is in the decontamination chamber.

2. The catalytic cleaning device for a cooking apparatus according to claim 1, wherein the cleaning portion further comprises:

a first guide portion capable of guiding the cooking medium close to and/or through the catalytic cleaning device for cleaning the cooking medium.

3. The catalytic cleaning device for a cooking apparatus according to claim 2, wherein the first guide portion includes:

a first fan provided to the cooking body so as to:

under the action of the first fan, the cooking medium in the cooking chamber is guided to a position close to and/or flowing through the catalytic purification device.

4. The catalytic converter as set forth in claim 3, wherein the housing has an opening at a position close to the first fan, the opening and the first fan being engaged with each other.

5. The catalytic cleaning device for cooking apparatus according to claim 4, wherein the housing is provided with a first pipe section extending or provided at a position corresponding to the opening in a direction close to the air inlet of the first fan,

the cooking main body is provided with a second pipe section at a position corresponding to the air inlet of the first fan,

wherein the first and second pipe sections are connected and/or aligned with each other.

6. The catalytic cleaning device for a cooking apparatus according to claim 3, wherein the cooking body includes a second fan for dissipating heat from an element in the cooking apparatus,

the second fan is provided with a heat dissipation air channel, a mounting area is reserved in a position of the cooking equipment corresponding to the heat dissipation air channel, and the first fan is arranged in the mounting area.

7. The catalytic cleaning device for a cooking apparatus according to claim 2, wherein the cleaning portion further comprises:

a second guide portion capable of forming a guide path for the cooking medium treated by the catalytic cleaning device away from the catalytic cleaning device.

8. The catalytic cleaning device for a cooking apparatus according to claim 7, wherein a downstream side of the second guide portion includes at least one discharge port capable of discharging the cooking medium to a target position corresponding thereto, as viewed in a flow direction of the cooking medium.

9. Catalytic cleaning device for a cooking apparatus according to claim 8, characterized in that the target position comprises a first target position and/or a second target position,

wherein the decontaminated cooking medium is capable of being discharged to an environment external to the cooking appliance in a situation where the cooking medium is dispensed to the first target location;

wherein the cooking medium after the purification treatment can be dispensed to the cooking chamber again in a state that the cooking medium is dispensed to the second target position.

10. A cooking apparatus, characterized in that it comprises a catalytic purification device for a cooking apparatus according to any one of claims 1 to 9.

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