Smoke guiding structure for guiding oil fume for detection and integrated stove

Abstract

The application discloses a smoke guiding structure for guiding oil fume for detection and an integrated cooker, and belongs to the technical field of cooking parameter detection of integrated cookers. The smoke guiding structure comprises a detection sensor, a centrifugal flow guiding part, a condensing part and a detection part which are sequentially arranged on an oil fume suction path. The centrifugal flow guiding part comprises a flow guiding wall and a fan which outputs oil fume to the flow guiding wall in a centrifugal manner. The condensing part comprises a condensing wall which condenses oil droplets. The detection part comprises the detection sensor and is used for detecting oil droplets which are guided to the condensing wall. The smoke guiding structure can avoid high temperature of oil fume and adhesion of oil fume on the surface of the detection sensor, so that the detection sensor has a more accurate detection result and a longer service life, and the integrated cooker can make more accurate feedback according to the detection result.

Description

Technical Field

[0001] This utility model belongs to the field of cooking parameter detection technology for integrated stoves, specifically relating to a smoke guide structure and an integrated stove that improves the service life of the detection device. Background Technology

[0002] As a core appliance in modern kitchens, integrated cooktops rely on real-time, accurate detection of cooking fumes for their intelligent control functions (such as automatic fan speed adjustment). However, existing integrated cooktop intelligent control applications have significant limitations, primarily because the detection sensors are exposed to harsh environments of high temperatures and high oil content for extended periods, leading to the following problems:

[0003] ① Oil adhesion problem: Oil particles in cooking fumes easily adhere to the sensor surface, gradually forming an oil film, leading to sensor signal distortion or complete failure; ② High temperature damage problem: High-temperature cooking fumes (usually >150℃) continuously act on the internal electronic components of the sensor, causing component performance degradation, manifested as irreversible damage such as signal drift and unstable output, as well as a reduction in service life; ③ Detection method defects: Currently, the commonly used technology is direct analysis of flue gas components. This method is easily affected by factors such as ambient temperature and humidity, and airflow disturbances, making it difficult to capture changes in oil fume concentration in a timely manner under complex working conditions.

[0004] The aforementioned problems collectively lead to a decrease in sensor detection accuracy, causing frequent response delays, incorrect gear adjustments, or control failures in the intelligent gear control of integrated cooktops. Therefore, there is an urgent need for a fume detection structure that can avoid the wear and tear on the detection sensor caused by cooking fumes, obtain more stable detection results, and thus improve the sensor's lifespan and detection stability. Utility Model Content

[0005] To address the aforementioned technical problems, this application further improves the fume detection structure of the integrated stove, aiming to resolve these issues. One objective of this utility model is to provide a fume guiding structure for detection, and another objective is to provide a corresponding integrated stove.

[0006] The specific technical solution is explained below:

[0007] The smoke guiding structure for detecting cooking fumes includes a detection sensor, and also includes a centrifugal guide section, a condensation section and a detection section arranged sequentially along the smoke inhalation path;

[0008] The centrifugal guide section has a guide wall and a fan that centrifugally outputs oil fumes to the guide wall;

[0009] The condensation section has a condensation wall for condensing oil droplets;

[0010] The detection unit includes the aforementioned detection sensor for detecting oil droplets conducted down the condenser wall.

[0011] In some embodiments, a diffuser is provided at the beginning of the fume inhalation path, the diffuser having a fume flow space that gradually narrows in the flow direction;

[0012] The diffuser section forms the aforementioned gradually narrowing oil fume flow space at the inlet of the fan through the diffuser wall.

[0013] In a preferred embodiment, the diffuser wall, the guide wall, and the condenser wall are combined to form a guide.

[0014] In a further preferred embodiment, the guide is a one-piece molded part.

[0015] In some embodiments, the guide wall has a curved surface conforming to the direction of oil fume flow.

[0016] In some embodiments, the condensation wall has multiple sets of condensation protrusions.

[0017] In a further embodiment, the condensation wall is provided with an oil-collecting flange on the side facing the detection sensor, and the oil-collecting flange has a curved surface that guides oil droplets to the detection sensor.

[0018] In some embodiments, an oil-collecting flange is provided on each side of the condensation wall.

[0019] In a preferred embodiment, the fan is a cross-flow fan.

[0020] An integrated cooktop includes a smoke collection hood mounted on a host computer component, wherein the smoke collection hood contains a smoke guiding structure as described in any of the above technical solutions.

[0021] In summary, the technical solution described in this utility model has the following main beneficial effects:

[0022] Compared with existing technologies, the present invention avoids the high temperature of oil fumes directly acting on the detection sensor and prevents oil fumes from adhering to the surface of the detection sensor. This results in more accurate detection results and a longer service life. The detection object is the condensed droplets rather than the oil fumes themselves, and the detection result is humidity rather than the concentration of oil fumes. The integrated stove can make more accurate feedback based on the detection result.

[0023] Furthermore, the smoke guide structure is simple, making it easy to manufacture and install.

[0024] Furthermore, it can prevent the formation of oil fume vortices and reduce the resistance to oil fume inhalation.

[0025] Further or more detailed beneficial effects will be described in conjunction with specific embodiments in the detailed implementation. Attached Figure Description

[0026] Figure 1 This is an enlarged view of the integrated stove structure with a downward viewing angle and a portion thereof in the embodiments of this application;

[0027] Figure 2 This is a side cross-sectional view of the host computer component in an embodiment of this application;

[0028] Figure 3 This is a schematic diagram of the structure of the guide in the embodiments of this application;

[0029] Figure 4 This application provides a schematic diagram of the arrangement of the condensation protrusions in an embodiment. The arrows in the diagram indicate the approximate flow direction of the fumes.

[0030] Figure label:

[0031] a: diffuser section, b: centrifugal guide section, c: condenser section, d: detection section;

[0032] 1: Detection sensor;

[0033] 2: Guide component; 2.1: Diffuser wall; 2.2: Flow guide wall; 2.3: Condensation wall; 2.31: Condensation protrusion; 2.311: Collection section; 2.32: Oil collection flange; 2.33: Aggregation and convergence area;

[0034] 3: Fan;

[0035] 4: Smoke hood;

[0036] 5: Oil passage hole;

[0037] 6: Main smoke inlet. Detailed Implementation

[0038] The present invention will be further explained in conjunction with the embodiments:

[0039] The core technical problem faced by the technical solution of this application embodiment stems from the inventor's accurate understanding of the prior art. Therefore, how to improve the accuracy and service life of oil fume detection is a technical problem that the inventor urgently needs to solve.

[0040] It should be noted that the embodiments do not constitute a limitation on the scope of protection of the claims of this utility model. All technical solutions that can be reasonably expected by those skilled in the art based on the technical concepts provided / proved by the embodiments should be covered within the scope of protection of the claims of this utility model.

[0041] The specific implementation examples are detailed below:

[0042] Please refer to the attached document. Figures 1-3 This embodiment relates to a smoke guiding structure for guiding oil fumes for detection. The smoke guiding structure includes a detection sensor 1 for detecting the humidity of oil droplets. The smoke guiding structure has a diffuser a, a centrifugal guide b, a condenser c, and a detection d arranged sequentially in the oil fume inhalation path.

[0043] The diffuser a is located at the beginning of the fume intake path and is used to receive fumes generated from the cooking area of ​​the stove; the centrifugal guide b is located downstream of the diffuser a and drives the flow of fumes through the fan 3; the condenser c is located downstream of the centrifugal guide b and is used to promote the conversion of the physical state of the fumes; the detection d is located downstream of the condenser c and is equipped with the aforementioned detection sensor 1 for finally detecting the humidity of the processed oil droplets; the detected and excess oil droplets flow out through the oil passage 5 below.

[0044] The diffuser section a is designed as a gradually narrowing oil fume flow space in the direction of oil fume flow to change the state of the oil fume, increase the oil fume pressure, and reduce the flow velocity to ensure airflow. The centrifugal guide section b includes a guide wall 2.2 and a fan 3. The fan 3 centrifugally outputs the oil fume onto the guide wall 2.2, which facilitates the agglomeration and condensation of fine oil droplets. The guide wall 2.2 prevents eddies from obstructing the subsequent flow of oil fume. The condensation section c includes a condensation wall 2.3 for condensing oil droplets. The detection section d uses a detection sensor 1 to detect oil droplets conducted down from the condensation wall 2.3. The oil fume flow path sequentially passes through the diffuser section a, the centrifugal guide section b, the condensation section c, and the detection section d, forming a complete processing chain.

[0045] In this embodiment, the sequentially arranged diffuser (a), centrifugal guide (b), condenser (c), and detection unit (d) ensure that the oil fumes are fully treated before contacting the detection sensor 1, thus preventing direct contact between the oil fumes and the sensor. This avoids damage to the internal components of the sensor 1 due to high temperatures caused by the oil fumes and also prevents oil fumes from adhering to the surface of the sensor and affecting its normal operation. The innovation of this technical solution lies first in the selection of the detection object (oil fume state). The detection object is the condensed droplets rather than the oil fume itself, and the detection result is humidity rather than the concentration of oil fume. This achieves more accurate detection results and a longer service life. Based on this detection result, the integrated stove can make more accurate feedback (such as adjusting the fan speed), solving the problem of inaccurate control caused by the sensor's susceptibility to environmental influences and performance degradation in existing technologies.

[0046] In a further embodiment, the diffuser a forms a gradually narrowing oil fume flow space through the diffuser wall 2.1. This diffuser wall 2.1 is located at the inlet of the fan 3 and is designed to gradually taper in the direction of oil fume flow. Specifically, the diffuser wall 2.1 gradually narrows from the upstream end of the fan 3 inlet towards the inlet, forming a "V"-shaped structure to optimize the entry process of the oil fumes. The gradually narrowing design of the diffuser wall 2.1 ensures that the oil fumes are compressed before being drawn into the fan 3, increasing pressure and reducing flow velocity. In this embodiment, the gradually narrowing oil fume flow space formed at the fan 3 inlet by the diffuser wall 2.1 achieves the specific formation method of this space, ensuring that the oil fume state change process is efficient and controllable, providing a basis for subsequent centrifugal guidance and condensation.

[0047] In a further embodiment, the diffuser wall 2.1, the guide wall 2.2, and the condenser wall 2.3 are combined to form a single integral component, referred to as guide element 2. Guide element 2 integrates these three walls to form a continuous fume treatment unit. The diffuser wall 2.1 is responsible for compressing the fume flow space, the guide wall 2.2 guides the centrifugal fume flow output by the fan 3, and the condenser wall 2.3 provides a surface for oil droplet condensation. The three components work together to ensure a smooth transition of the fume from diffusion to guidance to condensation. This embodiment combines the diffuser wall 2.1, the guide wall 2.2, and the condenser wall 2.3 into guide element 2, achieving diffusion, centrifugal guidance, and condensation functions, simplifying the structural design, facilitating manufacturing and installation, and improving the overall integrity and efficiency of the fume guiding structure. In a preferred embodiment, the guide 2 is manufactured as a one-piece molded part, for example, by injection molding or stamping, to ensure that the diffuser wall 2.1, the guide wall 2.2 and the condenser wall 2.3 are seamlessly connected as a rigid whole without seams or assembly points. This has advantages such as easy processing and good overall strength, reduces gaps and potential failure points between components, improves the durability and reliability of the smoke guiding structure, and simplifies the production process.

[0048] In a preferred embodiment, the guide wall 2.2 is designed with a curved surface conforming to the direction of oil fume flow. This curved surface matches the outer surface contour of the fan 3, forming a smooth transition guide path, ensuring that the oil fume output by the fan 3 is uniformly guided onto the guide wall 2.2 without sudden turns or dead angles, avoiding the generation of eddies in the flow of oil fume, thereby reducing the flow resistance of oil fume, improving the efficiency of centrifugal guidance, and ensuring a smooth oil droplet aggregation process.

[0049] In a further embodiment, the condensing wall 2.3 has multiple sets of condensing protrusions 2.31. These condensing protrusions 2.31 are in the form of through holes and are evenly distributed on the surface of the condensing wall 2.3 to promote the accumulation and guidance of oil fumes. The aperture and layout of the condensing protrusions 2.31 optimize the residence time of oil fumes, making it easier for oil droplets to condense on the wall surface. The condensing protrusions 2.31 also increase the contact area between oil fumes and the condensing wall 2.3, accelerating the oil droplet condensation process and improving condensation efficiency.

[0050] As a preferred embodiment of this invention, see attached... Figure 4 As shown, a collecting part 2.311 is provided on the condensing protrusion 2.31 to collect oil droplets in the fumes onto its surface and guide the fumes to flow separately to both sides. The collecting part 2.311 is a sloping surface that follows the direction of the fumes flow. A gathering and agglomeration area 2.33 is formed between the collecting parts 2.311 of two laterally adjacent condensing protrusions 2.31. After the fumes are guided and diverted by the two adjacent collecting parts 2.311, they gather and collide at the gathering and agglomeration area 2.33. The originally smaller oil droplets are thus agglomerated and agglomerated into larger oil droplets, making them easier to collect.

[0051] More preferably, the condensation protrusions 2.31 are provided in at least two rows. A condensation protrusion 2.31 is provided below the collection part 2.311 of the two laterally adjacent condensation protrusions 2.31 in the upper row. That is, the collection part 2.311 of the condensation protrusion 2.31 is located just below the aggregation area 2.33 between the two adjacent collection parts 2.311 in the upper row. After the oil droplets are aggregated and their size increases, they are captured by the collection part 2.311 in the lower row, thereby improving the collection effect of oil fume droplets.

[0052] More preferably, the condensation protrusions 2.31 are provided in three rows, with the lower row of condensation protrusions 2.31 positioned between the two adjacent condensation protrusions 2.31 in the nearest upper row.

[0053] In a further embodiment, an oil-collecting flange 2.32 is provided on the side of the condensing wall 2.3 facing the detection sensor 1. The oil-collecting flange 2.32 is designed with a curved surface that guides oil droplets to the detection sensor 1. It is shaped like an arc flange, located at the edge of the condensing wall 2.3, and tilted towards the detection sensor 1. This curved surface ensures that the condensed oil droplets slide down the flange to the detection sensor 1, avoiding oil droplet loss or residue, and ensuring accurate detection by the detection sensor 1.

[0054] In a further embodiment, an oil-collecting flange 2.32 is provided on each side of the condensation wall 2.3. Each oil-collecting flange 2.32 has a curved surface for guiding the detection sensor 1 and is symmetrically arranged at both ends of the condensation wall 2.3. The distance between the two oil-collecting flanges 2.32 gradually decreases to ensure that oil droplets condensing from different directions are fully captured and guided, thus fully guiding the oil droplets to cover a wider condensation area, enhancing the oil droplet collection efficiency, avoiding omissions, and thereby improving the reliability of detection.

[0055] In some embodiments, the fan 3 is a cross-flow fan. The cross-flow fan has an elongated impeller and horizontal airflow output characteristics. It is installed in the centrifugal guide section b and drives the oil fume to flow towards the guide wall 2.2 in a centrifugal manner. Due to its efficient centrifugal output capability, it is suitable for the compact space of the smoke guide structure and optimizes the centrifugal guiding effect of the oil fume.

[0056] The embodiment also includes an integrated stove, which includes a fume hood 4 mounted on a host computer component. The fume hood 4 contains a smoke guiding structure as described in any of the above embodiments. Oil fumes are primarily drawn in through the main smoke inlet 6, with a small portion flowing in through the smoke guiding structure, which is integrated inside the fume hood 4 and located above the cooking area. The oil fume intake path starts from the inlet of the fume hood 4 and sequentially passes through the diffuser a, centrifugal guide b, condenser c, and detection d of the smoke guiding structure. The host computer component controls the fan speed of the integrated stove based on signals from the detection sensor 1. By placing the smoke guiding structure inside the fume hood 4, the integrated stove achieves oil fume detection, solving the problem in existing technologies where sensors are easily affected by high temperatures and oil stains from oil fumes, making the intelligent control of the integrated stove more accurate and stable.

[0057] In the description of this specification, the references to terms such as "embodiment," "basic embodiment," "preferred embodiment," "other embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0058] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0059] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A smoke guiding structure for detecting cooking fumes, comprising a detection sensor (1), characterized in that, It also includes a centrifugal guide section (b), a condensation section (c), and a detection section (d) arranged sequentially along the intake path of the oil fumes. The centrifugal guide section (b) has a guide wall (2.2) and a fan (3) that centrifugally outputs oil fumes to the guide wall (2.2). The condenser section (c) has a condenser wall (2.3) for condensing oil droplets; The detection unit (d) includes the aforementioned detection sensor (1) for detecting oil droplets conducted down from the condensation wall (2.3).

2. The smoke guiding structure according to claim 1, characterized in that: A diffuser (a) is also provided at the beginning of the fume inhalation path, and the diffuser (a) has a fume flow space that gradually narrows in the flow direction. The diffuser (a) forms the aforementioned narrowing oil fume flow space at the inlet of the fan (3) through the diffuser wall (2.1).

3. The smoke guiding structure according to claim 2, characterized in that: The diffuser wall (2.1), the guide wall (2.2), and the condenser wall (2.3) together constitute the guide (2).

4. The smoke guiding structure according to claim 3, characterized in that: The guide (2) is a one-piece molded part.

5. The smoke guiding structure according to claim 1, characterized in that: The guide wall (2.2) has a curved surface that conforms to the direction of oil fume flow.

6. The smoke guiding structure according to claim 1, characterized in that: The condensation wall (2.3) has multiple sets of condensation protrusions (2.31).

7. The smoke guiding structure according to claim 1 or 6, characterized in that: The condensation wall (2.3) is provided with an oil collection flange (2.32) on the side facing the detection sensor (1), and the oil collection flange (2.32) has a curved surface that guides oil droplets to the detection sensor (1).

8. The smoke guiding structure according to claim 7, characterized in that: The condensation wall (2.3) has an oil-collecting flange (2.32) on each side.

9. The smoke guiding structure according to claim 1, characterized in that: The fan (3) is a cross-flow fan.

10. An integrated stove, comprising a smoke collection hood (4) mounted on a host computer component, characterized in that: The smoke collection hood (4) is provided with a smoke guiding structure as described in any one of claims 1 to 9.

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