Oil fume detection structure with multiple cooperative heat dissipation and integrated stove

Abstract

The application discloses a multi-point cooperative heat dissipation oil fume detection structure and integrated cooker, and belongs to the technical field of heat dissipation structures of integrated cookers. The oil fume detection structure comprises a transversely arranged fan, the fan is located at an oil fume inlet and is driven by a motor, and is used for introducing oil fume to be detected and analyzed; an illumination part is used for providing illumination; a heat dissipation impeller group comprises a main heat dissipation impeller, a plurality of slave heat dissipation impellers and a transmission structure for transmitting the rotating power of the main heat dissipation impeller to the slave heat dissipation impellers; the main heat dissipation impeller provides heat dissipation air flow blowing to the motor, and the slave heat dissipation impellers provide at least heat dissipation air flow blowing to the illumination part. The detection structure comprises heat dissipation components with comprehensive heat dissipation distribution, and can provide a stable environment for detection operation.

Description

Technical Field

[0001] This utility model belongs to the technical field of heat dissipation structure of integrated stoves, specifically relating to an oil fume detection structure with comprehensive heat dissipation distribution and stable operation, and an integrated stove. Background Technology

[0002] The intelligentization of kitchen appliances has become an important development trend. As a core device in the modern kitchen, the intelligent control function of integrated cooktops relies on the accurate and real-time detection and analysis of oil fumes generated during cooking. However, in practical applications, the bottleneck of oil fume detection lies in the reliability of long-term operation.

[0003] When an integrated stove is working, the inhaled fumes carry heat, the motor itself is a heat source, and if lighting components are present, they also become heat sources. Within the relatively confined space of the upper-level computer components, if the heat generated cannot be dissipated in time, it will exacerbate the localized high-temperature environment, further affecting the stability of sensors and electronic control components. Traditional heat dissipation solutions often struggle to address heat dissipation in all areas simultaneously. Forcing such solutions would inevitably add multiple power sources, thus increasing the heat generated during operation. Utility Model Content

[0004] To address the aforementioned technical problems, this application further improves the heat dissipation structure for introducing oil fumes, aiming to resolve these issues. One objective of this utility model is to provide an oil fume detection structure with multi-point coordinated heat dissipation; another objective is to provide an integrated stove using this oil fume detection structure.

[0005] The specific technical solution is explained below:

[0006] The oil fume detection structure with multiple coordinated heat dissipation points includes:

[0007] A horizontally arranged fan, located at the fume inlet and driven by a motor, is used to introduce the fume to be detected and analyzed;

[0008] The lighting section is used to provide illumination;

[0009] A heat dissipation impeller assembly, comprising a main heat dissipation impeller, a plurality of slave heat dissipation impellers, and a transmission structure for transmitting the rotational power of the main heat dissipation impeller to the slave heat dissipation impellers;

[0010] The main cooling impeller provides cooling airflow toward the motor, and the secondary cooling impeller provides cooling airflow toward at least the lighting unit.

[0011] In a further embodiment, the motor simultaneously drives the fan and the main cooling impeller, and the motor drives the main cooling impeller to rotate through an extension of its drive shaft.

[0012] In a further embodiment, the transmission structure includes a plurality of transmission shafts, which transmit axial rotational power and change the output direction of the axial rotational power through helical gears.

[0013] In a further embodiment, the outer end of the main heat dissipation impeller is provided with a helical gear that rotates synchronously with it, and the helical gear at one end of the main drive shaft is driven to rotate through the helical gear, thereby driving the main drive shaft to rotate. The rotational power of the main drive shaft is output through the helical gear at the other end.

[0014] In a further embodiment, the transmission structure also includes a transversely arranged transmission shaft;

[0015] The middle part of the main drive shaft is provided with a helical gear to receive the rotational power of the main drive shaft, and the two ends of the main drive shaft are respectively provided with helical gears to output rotational power.

[0016] In a further embodiment, the transmission structure also includes a drive shaft that transmits power from the drive shaft to the terminal drive shaft of the heat dissipation impeller.

[0017] The lower end of the terminal drive shaft is provided with a helical gear to receive the rotational power of the drive shaft, and the upper end of the terminal drive shaft is connected to the heat dissipation impeller, which rotates with the terminal drive shaft.

[0018] In a further embodiment, the inner cavity where the transmission structure is located is respectively provided with limiting structures acting on the main transmission shaft and the terminal transmission shaft. The limiting structure is a plate-shaped member with a through hole, which allows the main transmission shaft and the terminal transmission shaft to pass through without hindering their own rotation.

[0019] In a further embodiment, the lighting unit includes lighting lamps respectively disposed on both sides of the fan in the horizontal direction;

[0020] The heat dissipation impeller assembly includes a secondary heat dissipation impeller that provides heat dissipation to the area where the two lighting lamps are located.

[0021] An integrated stove includes a fume collection hood and an oil fume analysis chamber disposed within the fume collection hood, the oil fume analysis chamber having an oil fume inlet;

[0022] The fume analysis chamber is equipped with the fume detection structure described in any of the above technical solutions.

[0023] In a further embodiment, an electrical control area is provided on the side of the motor away from the fan;

[0024] The heat dissipation impeller assembly includes a secondary heat dissipation impeller that provides heat dissipation to the aforementioned electronically controlled area; the smoke collection hood has a group of air supply holes in the area where the aforementioned electronically controlled area is located.

[0025] In summary, the technical solution described in this utility model has the following main beneficial effects:

[0026] Compared with the existing technology, the present invention provides a heat dissipation configuration with multiple heat sources, achieving a more comprehensive heat dissipation effect, thereby improving the operational stability during oil fume detection.

[0027] Furthermore, multiple heat dissipation structures share the same power source, and the power of this power source is transmitted through a transmission structure, which reduces the number of power sources, thereby reducing the heat sources and the space occupied by multiple heat sources.

[0028] Further or more detailed beneficial effects will be described in conjunction with specific embodiments in the detailed implementation. Attached Figure Description

[0029] 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;

[0030] Figure 2 This is a schematic diagram of the fan heat dissipation structure in an embodiment of this application;

[0031] Figure 3 This is a schematic diagram of the internal structure of the integrated stove at the rear angle in an embodiment of this application;

[0032] Figure 4 yes Figure 3 Enlarged view of the structure of area A;

[0033] Figure 5 This is a side cross-sectional view of the host computer component in an embodiment of this application;

[0034] Figure 6 This is a schematic diagram of the structure of the guide in the embodiments of this application;

[0035] Figure 7 This is a schematic diagram of the smoke hood with air supply holes in an embodiment of this application.

[0036] Figure label:

[0037] a: Fume analysis room; b: Electrical control area;

[0038] 1: Detection sensor;

[0039] 2: Guide component; 2.1: Diffuser wall; 2.2: Flow guide wall; 2.3: Condensation wall; 2.31: Condensation protrusion; 2.32: Oil collection flange;

[0040] 3.1: Fan; 3.2: Lighting unit; 3.3: Motor; 3.31: Extension section; 3.4: Heat dissipation impeller assembly; 3.41: Main heat dissipation impeller; 3.42: Spur heat dissipation impeller; 3.43: Transmission structure; 3.431: Helical gear; 3.432: Main drive shaft; 3.433: Bearing drive shaft; 3.434: Terminal drive shaft;

[0041] 4: Smoke hood; 4.1: Air supply hole assembly. Detailed Implementation

[0042] The present invention will be further explained in conjunction with the embodiments:

[0043] 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 heat dissipation and stability of oil fume detection is a technical problem that the inventor urgently needs to solve.

[0044] 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.

[0045] The specific implementation examples are detailed below:

[0046] Please refer to the attached document. Figures 1-5 This embodiment provides a multi-point coordinated heat dissipation oil fume detection structure, including a horizontally arranged fan 3.1, which is located at the oil fume inlet and driven by a motor 3.3 to introduce the oil fume to be detected and analyzed; an illumination unit 3.2 for providing illumination; and a heat dissipation impeller assembly 3.4, which includes a main heat dissipation impeller 3.41, a plurality of secondary heat dissipation impellers 3.42, and a transmission structure 3.43 for transmitting the rotational power of the main heat dissipation impeller 3.41 to the secondary heat dissipation impellers 3.42.

[0047] The main cooling impeller 3.41 directly provides cooling airflow to the motor 3.3, while the secondary cooling impellers 3.42 provide cooling airflow to the lighting unit 3.2. In practical applications, the number of secondary cooling impellers 3.42 can be flexibly set according to cooling requirements, such as two or more, to cover multiple heat source areas. The fan 3.1 is typically a cross-flow fan, arranged laterally for efficient fume extraction. The lighting unit 3.2 includes LED lights or similar light sources to provide uniform illumination for fume detection. The cooling impeller assembly 3.4 is driven by a common power source, namely the motor 3.3, and the transmission structure 3.43 ensures that power is distributed from the main cooling impeller 3.41 to each secondary cooling impeller 3.42. This design improves the heat dissipation effect and operational stability of the fume detection structure through comprehensive heat dissipation. In this embodiment, at least two main heat sources are dissipated: the heat generated by the motor 3.3 driving the fan 3.1 and the heat generated by the lighting unit 3.2 during illumination. By covering multiple heat sources, local high temperature accumulation is avoided. At the same time, the heat dissipation impeller assembly 3.4 is driven by only one power source, reducing the number of power sources and thus reducing the generation of additional heat sources and the space occupied, making the structure more compact. It is especially suitable for the relatively small space of the host computer component, improving the overall reliability and lifespan of the equipment.

[0048] For further implementation methods, please refer to the appendix. Figures 1-5 The motor 3.3 simultaneously drives the fan 3.1 and the main cooling impeller 3.41. The motor 3.3 drives the main cooling impeller 3.41 to rotate through an extension 3.31 of its drive shaft. Specifically, one end of the drive shaft of the motor 3.3 is connected to the impeller of the fan 3.1, and the other end is directly coupled to the main cooling impeller 3.41 through the extension 3.31. The extension 3.31 can be an extension of the shaft or connected through a coupling to ensure synchronous rotation. The main cooling impeller 3.41 is a centrifugal or axial impeller to generate directional airflow. This design, which uses the same motor 3.3, ensures timely heat dissipation while the motor 3.3 is working, eliminating the need for a separate cooling motor. This simplifies the structure, saves space, and reduces energy consumption and the number of heat sources due to the single power source. It is particularly suitable for use in space-constrained host computer components, avoiding the complexity and failure risks associated with multiple power sources, and improving system integration and operating efficiency.

[0049] For further implementation methods, please refer to the appendix. Figures 1-5The transmission structure 3.43 includes several transmission shafts, which transmit axial rotational power and change the output direction of this axial rotational power through helical gears 3.431. In practical design, the transmission shafts may include main transmission shafts 3.432, bearing transmission shafts 3.433, and terminal transmission shafts 3.434, etc. The helical gears 3.431 mesh in pairs, with the axes of each pair of helical gears at a certain angle (e.g., 90 degrees), thereby transmitting rotational power from one shaft to another and changing the direction of rotation. The transmission shafts are made of metal or high-strength plastic to ensure durability. The helical gears 3.431 have helical teeth designed to smoothly transmit power and reduce noise. This transmission structure allows for flexible power delivery within the required area. By changing the direction through the helical gears 3.431, it adapts to the complex spatial layout inside the fume detection structure, ensuring that the cooling airflow can be accurately guided to the heat source location, improving the targeting and efficiency of heat dissipation. At the same time, the transmission structure is simple, reliable, and easy to maintain.

[0050] For further implementation methods, please refer to the appendix. Figure 4 The outer end of the main cooling impeller 3.41 is equipped with a helical gear 3.431 that rotates synchronously with it. This helical gear 3.431 drives the rotation of the helical gear 3.431 at one end of the main drive shaft 3.432, thereby driving the main drive shaft 3.432 to rotate. The rotational power of the main drive shaft 3.432 is then output through the helical gear 3.431 at the other end. Specifically, a helical gear 3.431 is fixedly mounted at the end of the shaft of the main cooling impeller 3.41. This helical gear meshes with the helical gear 3.431 at one end of the main drive shaft 3.432. The main drive shaft 3.432 is typically longitudinally positioned, and its rotational power is output to the next stage of transmission components through the helical gear 3.431 at the other end. This design achieves a power transition from the main cooling impeller 3.41 to the main drive shaft 3.432, laying the foundation for subsequent power distribution. This allows the cooling system to expand from a single power source to cover multiple areas, enhancing the system's scalability and heat dissipation range.

[0051] For further implementation methods, please refer to the appendix. Figure 4The transmission structure 3.43 also includes a transversely arranged transmission shaft 3.433. A helical gear 3.431 is located in the middle of the transmission shaft 3.433 to receive the rotational power of the main transmission shaft 3.432, and helical gears 3.431 are located at both ends of the transmission shaft 3.433 to output rotational power. The transmission shaft 3.433 is transversely distributed, conforming to the transverse spatial layout within the smoke hood 4. The helical gear 3.431 in the middle meshes with the helical gear 3.431 at the output end of the main transmission shaft 3.432, thereby receiving rotational power. The helical gears 3.431 at both ends of the transmission shaft 3.433 are connected to the terminal transmission shaft 3.434, distributing the power in different directions. The transmission shaft 3.433 can be fixed by a bracket to ensure stability. This transitional power transmission structure facilitates the transmission of power to the appropriate locations, and is particularly well-suited to the space constraints inside integrated stoves. By maximizing space utilization through horizontal arrangement, it achieves efficient power distribution, avoids transmission obstacles caused by insufficient space, and improves the adaptability and reliability of the overall heat dissipation system.

[0052] For further implementation methods, please refer to the appendix. Figure 4 The transmission structure 3.43 further includes a terminal transmission shaft 3.434 that transmits power from the bearing transmission shaft 3.433 to the heat dissipation impeller 3.42. The lower end of the terminal transmission shaft 3.434 is equipped with a helical gear 3.431 to receive the rotational power of the bearing transmission shaft 3.433, and the upper end of the terminal transmission shaft 3.434 is connected to the heat dissipation impeller 3.42, which rotates with the terminal transmission shaft 3.434. The terminal transmission shaft 3.434 is typically vertically or inclined. The lower helical gear 3.431 meshes with the helical gear 3.431 at the end of the bearing transmission shaft 3.433, and the upper end is connected to the heat dissipation impeller 3.42 via a bushing or directly. The heat dissipation impeller 3.42 can be designed as a small axial flow impeller to generate localized cooling airflow. The terminal transmission shaft 3.434 may be equipped with a limiting structure to prevent swaying. This terminal power transmission structure ensures reliable drive from the heat dissipation impeller 3.42, enabling point-to-point heat dissipation for the lighting unit 3.2 or other heat sources, thereby effectively reducing local temperature and improving the stability of the oil fume detection element. At the same time, the transmission path is clear, reducing power loss.

[0053] For further implementation methods, please refer to the appendix. Figures 1-5The inner cavity of the transmission structure 3.43 is equipped with limiting structures acting on the main drive shaft 3.432 and the terminal drive shaft 3.434. These limiting structures are plate-like pieces with through holes, allowing the main drive shaft 3.432 and the terminal drive shaft 3.434 to pass through without obstructing their rotation. The limiting structures can be metal or plastic plates, fixed to the inner cavity wall. The diameter of the through holes is slightly larger than the shaft diameter, allowing the shafts to rotate freely while providing radial support to prevent shaft wobble or vibration. Multiple limiting structures can be spaced apart along the shaft length to enhance stability. This limiting structure ensures the stable operation of the transmission structure 3.43, reduces noise and wear caused by shaft wobble, extends the service life of the transmission components, and thus ensures a continuous and stable output of cooling airflow, improving the long-term reliability of the fume detection structure.

[0054] For further implementation methods, please refer to the appendix. Figures 1-5 The lighting unit 3.2 includes LED lights respectively disposed on both sides of the fan 3.1 in the horizontal direction; the heat dissipation impeller assembly 3.4 includes heat dissipation impellers 3.42 that provide heat dissipation to the area where the two lights are located. The lights are symmetrically arranged on the left and right sides of the fan 3.1 to provide uniform illumination to the fume inlet area. The heat dissipation impellers 3.42 are correspondingly disposed near the lights, with each light equipped with at least one heat dissipation impeller 3.42 to directly blow heat onto the lamp body. This distribution ensures the coordinated operation of lighting and heat dissipation, and through targeted heat dissipation, it avoids the accumulation of heat in the lighting unit 3.2 due to long-term operation, thereby maintaining stable lighting brightness, while improving the heat dissipation uniformity of the overall fume detection structure and avoiding thermal interference.

[0055] A further embodiment provides an integrated cooktop; please refer to the appendix for details. Figures 1-5 The integrated cooktop includes a fume hood 4 and an oil fume analysis chamber a disposed within the fume hood 4. The oil fume analysis chamber a has an oil fume inlet. An oil fume detection structure as described in any of the above embodiments is installed within the oil fume analysis chamber a. The fume hood 4 is located above the cooktop, and the oil fume analysis chamber a is integrated inside the fume hood 4. The oil fume inlet is connected to an air intake channel, and the oil fume detection structure is installed in the oil fume analysis chamber a for real-time detection of oil fume components. This integrated cooktop, through its built-in high-efficiency heat dissipation oil fume detection structure, improves the accuracy and stability of oil fume analysis, avoids sensor drift or malfunction caused by high temperatures, thereby meeting the needs of modern kitchen intelligent control and extending the service life of the integrated cooktop.

[0056] For further implementation methods, please refer to the appendix. Figure 6The guide component 2 is composed of a diffuser wall 2.1, a guide wall 2.2, and a condenser wall 2.3, arranged sequentially according to the flow order of the fumes. The diffuser wall 2.1 forms a gradually narrowing fume flow space at the inlet of the fan 3.1, which helps increase the pressure of the fumes and reduce their flow velocity, thus ensuring airflow. The guide wall 2.2 has a curved surface conforming to the flow direction of the fumes. This surface can be adapted to the outer surface contour of the fan, avoiding the generation of eddies and reducing the flow resistance of the fumes, so as not to obstruct the inflow of subsequent fumes. After being output by the fan 3.1, the fumes form a centrifugal flow state, which facilitates the agglomeration and condensation of fine oil droplets. The condenser wall 2.3 has a condensation structure, providing a basis for the condensation of the fumes. The detection sensor 1 is located below the condenser wall 2.3 to detect the oil droplets conducted down from the condenser wall 2.3. This design ensures effective condensation and detection of oil droplets by gradually changing the state of the fumes, further improving the accuracy of detection and the service life of the sensor.

[0057] In some embodiments, multiple sets of condensation protrusions 2.31 are formed on the condensation wall 2.3. These condensation protrusions 2.31 can be through holes to facilitate the accumulation and guidance of oil fumes. The design of the condensation protrusions 2.31 helps to achieve uniform distribution of oil fumes on the condensation wall 2.3, further improving the condensation efficiency of oil droplets. This design ensures that oil droplets can condense uniformly on the condensation wall 2.3, improving the detection accuracy of the detection sensor 1;

[0058] An oil-collecting flange 2.32 is provided on the side of the condensing wall 2.3 facing the detection sensor 1. This flange 2.32 has a curved surface that guides oil droplets to the detection sensor 1. This curved surface has an arc-shaped structure that bends towards the lower part of the condensing wall 2.3, causing the lower end of the flange 2.32 to taper relative to the upper end, thereby improving the oil droplet collection effect. The flange 2.32 is designed to guide the condensed oil droplets to the detection sensor 1, ensuring that the oil droplets can smoothly reach the detection sensor 1 for detection. This design further improves the oil droplet collection efficiency, ensuring that the detection sensor 1 can receive enough oil droplets for accurate detection.

[0059] In a further embodiment, an oil-collecting flange 2.32 is provided on each side of the condensation wall 2.3. The presence of oil-collecting flanges 2.32 on both sides effectively guides oil droplets, ensuring that they do not leak from the sides of the condensation wall 2.3, thus further improving the oil droplet collection efficiency. This design ensures that the detection sensor 1 can receive more oil droplets, improving detection accuracy.

[0060] For further implementation methods, please refer to the appendix. Figure 7An electrical control area b is located on the side of the motor 3.3 away from the fan 3.1; the heat dissipation impeller assembly 3.4 includes a heat dissipation impeller 3.42 that provides heat dissipation to the electrical control area b; the smoke hood 4 has a makeup air hole assembly 4.1 in the area where the electrical control area b is located. The electrical control area b contains electrical control components such as circuit boards and controllers, and is located on the side of the motor 3.3. The heat dissipation impeller 3.42 blows cooling airflow towards the electrical control area b. The makeup air hole assembly 4.1 consists of multiple small holes, allowing external cold air to enter and enhancing convective heat dissipation. This design further expands the heat dissipation range. By actively dissipating heat from the electrical control area b, it prevents the electrical control components from overheating and failing, improving the overall safety and reliability of the integrated stove. At the same time, the makeup air hole assembly 4.1 ensures the sustainability of the cooling airflow, forming a virtuous cycle of heat dissipation.

[0061] 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.

[0062] 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.

[0063] 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 multi-point coordinated heat dissipation oil fume detection structure, characterized in that, Including: A horizontally arranged fan (3.1) is located at the fume inlet and driven by a motor (3.3) to introduce the fume to be detected and analyzed; Lighting section (3.2), used to provide illumination; The heat dissipation impeller assembly (3.4) includes a main heat dissipation impeller (3.41), a plurality of secondary heat dissipation impellers (3.42), and a transmission structure (3.43) that transmits the rotational power of the main heat dissipation impeller (3.41) to the secondary heat dissipation impellers (3.42). The main heat dissipation impeller (3.41) provides a cooling airflow toward the motor (3.3), and the auxiliary heat dissipation impeller (3.22) provides at least a cooling airflow toward the lighting unit (3.2).

2. The oil fume detection structure according to claim 1, characterized in that: The motor (3.3) simultaneously drives the fan (3.1) and the main heat dissipation impeller (3.41) to operate, and the motor (3.3) drives the main heat dissipation impeller (3.41) to rotate through the extension section (3.31) of its drive shaft.

3. The oil fume detection structure according to claim 2, characterized in that: The transmission structure (3.43) includes several transmission shafts, which transmit axial rotational power and change the output direction of the axial rotational power through helical gears (3.431).

4. The oil fume detection structure according to claim 3, characterized in that: The outer end of the main heat dissipation impeller (3.41) is provided with a helical gear (3.431) that rotates synchronously with it. The helical gear (3.431) drives the helical gear (3.431) at one end of the main drive shaft (3.432) to rotate, thereby driving the main drive shaft (3.432) to rotate. The rotational power of the main drive shaft (3.432) is output through the helical gear (3.432) at the other end.

5. The oil fume detection structure according to claim 4, characterized in that: The transmission structure (3.43) also includes a transversely arranged transmission shaft (3.433). The middle part of the bearing drive shaft (3.433) is provided with a helical gear (3.431) to receive the rotational power of the main drive shaft (3.432), and the two ends of the bearing drive shaft (3.433) are respectively provided with helical gears (3.431) to output rotational power.

6. The oil fume detection structure according to claim 5, characterized in that: The transmission structure (3.43) also includes a drive shaft (3.434) that transmits power from the drive shaft (3.433) to the terminal drive shaft (3.434) from the heat dissipation impeller (3.42). The lower end of the terminal transmission shaft (3.434) is provided with a helical gear (3.431) to receive the rotational power of the bearing transmission shaft (3.433), and the upper end of the terminal transmission shaft (3.434) is connected to the heat dissipation impeller (3.42), which rotates with the terminal transmission shaft (3.434).

7. The oil fume detection structure according to claim 6, characterized in that: The inner cavity of the transmission structure (3.43) is provided with limiting structures that act on the main transmission shaft (3.432) and the terminal transmission shaft (3.434). The limiting structure is a plate-shaped piece with a through hole, through which the main transmission shaft (3.432) and the terminal transmission shaft (3.434) pass without hindering their rotation.

8. The oil fume detection structure according to claim 1, characterized in that: The lighting unit (3.2) includes lighting lamps respectively disposed on both sides of the fan (3.1) in the horizontal direction; The heat dissipation impeller assembly (3.4) includes a secondary heat dissipation impeller (3.42) that provides heat dissipation to the area where the two lighting lamps are located.

9. An integrated stove, characterized in that: It includes a fume hood (4) and an oil fume analysis chamber (a) disposed within the fume hood (4), the oil fume analysis chamber (a) having an oil fume inlet; The fume analysis chamber (a) is equipped with the fume detection structure described in any one of claims 1 to 8.

10. The integrated stove according to claim 9, characterized in that: The motor (3.3) has an electrical control area (b) on the side away from the fan (3.1); The heat dissipation impeller assembly (3.4) includes a heat dissipation impeller (3.42) that provides heat dissipation to the above-mentioned electrical control area (b); the smoke hood (4) has a group of air supply holes (4.1) in the area where the above-mentioned electrical control area (b) is located.

Images