Fan assembly for reducing fan load and integrated cooking range

Abstract

The application discloses a fan assembly and integrated cooker capable of reducing fan load, and belongs to the technical field of household appliances. The fan assembly comprises a fan and a smoke exhaust cavity which is connected with an air outlet of the fan, the smoke exhaust cavity is provided with a smoke exhaust outlet, and the fan assembly further comprises a flow guide piece which is arranged in the smoke exhaust cavity and located on an air flow path of the air outlet. The flow guide piece is provided with a flow guide surface which guides at least part of air flow output by the air outlet to the smoke exhaust outlet. The fan assembly can effectively reduce the load of a motor in the fan, reduce heat generation, and improve the oil fume suction effect.

Description

Technical Field

[0001] This utility model belongs to the field of household appliance technology, specifically relating to a fan assembly and integrated stove that reduces fan load. Background Technology

[0002] In existing integrated cooktop structures, the fan assembly, as the core power unit, typically includes a fan and a smoke exhaust chamber connected to its air outlet. When the fan is running, the motor generates significant heat due to driving the impeller to rotate at high speed. As the motor temperature continues to rise, the resistance of its internal windings increases, leading to a decrease in the efficiency of converting electrical energy into mechanical energy. To maintain the same air pressure output, the motor needs to consume more electrical energy, resulting in an increase in the overall energy consumption of the unit.

[0003] Meanwhile, high temperatures accelerate the aging of motor insulation materials, shortening equipment lifespan. More seriously, existing exhaust chambers lack effective airflow guidance structures: the airflow exiting the vent directly impacts the inner wall of the exhaust chamber (especially the lower plate area), creating turbulence and back pressure. This impact not only causes energy loss but also forces the motor to operate under continuous high load to overcome resistance, further exacerbating heat accumulation and creating a vicious cycle.

[0004] Current solutions attempt to cool the kitchen by adding cooling fans or external air-cooling systems, but this increases energy consumption and takes up space, making it difficult to implement in compact integrated cooktops. Therefore, there is an urgent need for a fan component design that optimizes airflow paths to reduce motor load and enhance fume extraction without increasing energy consumption. Utility Model Content

[0005] To address the aforementioned technical problems, this application further improves the internal structure of the fan assembly, aiming to obtain a fan assembly that reduces fan load and improves fume extraction efficiency. One objective of this utility model is to provide a fan assembly that reduces fan load, and another objective is to provide a corresponding integrated stove.

[0006] The specific technical solution is explained below: A fan assembly for reducing fan load includes a fan and a smoke exhaust chamber connected to the fan's outlet, the smoke exhaust chamber having a smoke exhaust outlet, and further includes: A flow guide is disposed within the smoke exhaust chamber and located on the air outlet flow path; The guide member has a guide surface that directs at least a portion of the airflow output from the air outlet to the smoke exhaust outlet.

[0007] In a further embodiment, the air guide is disposed adjacent to the air outlet.

[0008] In a further embodiment, the air guide has an arc-shaped air guide surface that directs the airflow output from the air outlet toward the smoke exhaust outlet and other parts.

[0009] In a further embodiment, a smoke exhaust sealing plate is provided at the end of the smoke exhaust chamber away from the smoke exhaust outlet, and the smoke exhaust sealing plate and the guide member form a sound-absorbing cavity; The edge of the guide has a gap that allows airflow from the other parts to flow into the silencing cavity.

[0010] In a further embodiment, a recirculation heat dissipation component is also included; The recirculation heat dissipation component includes a recirculation pipe connected to the smoke exhaust chamber and a heat dissipation air distribution plate connected to the recirculation pipe and outputting the recirculated gas to the fan.

[0011] In a further embodiment, the return pipe is located adjacent to the smoke exhaust outlet.

[0012] In a further embodiment, the heat dissipation air distribution plate is a hollow annular component with several heat dissipation air outlets.

[0013] In a preferred embodiment, the heat dissipation air distribution plate is arranged around the air inlet of the fan, and the heat dissipation air outlets are spaced apart on the inner contour of the heat dissipation air distribution plate.

[0014] In a preferred embodiment, the smoke exhaust chamber has a horizontally arranged smoke exhaust channel, and the smoke exhaust outlet and the smoke exhaust sealing plate are respectively disposed at both ends of the smoke exhaust channel.

[0015] The integrated cooktop is equipped with the fan assembly described in any of the above technical solutions.

[0016] In summary, the technical solution described in this utility model has the following main beneficial effects: Compared with existing technologies, the present invention can effectively reduce the load on the motor in the fan and reduce heat generation, thereby improving the fume extraction effect.

[0017] Furthermore, this technical solution can also provide recirculating cooling gas through the recirculating heat sink, ensuring the normal operation of the motor.

[0018] Further or more detailed beneficial effects will be described in conjunction with specific embodiments in the detailed implementation. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of an integrated stove showing the structure of the fan assembly in a specific implementation embodiment; Figure 2This is a structural schematic diagram of the wind turbine assembly in a specific implementation method; Figure 3 This is a schematic diagram of the flow guide component in a specific implementation method; Figure 4 This is a schematic diagram of the structure of a fan with a recirculation heat dissipation component in a specific implementation; Figure 5 This is a schematic diagram of the recirculation heat dissipation component in a specific implementation method; Figure 6 This is a cross-sectional schematic diagram of the heat dissipation air plate.

[0020] Figure label: 1: Fan; 1.1: Air outlet; 1.2: Air inlet; 2: Smoke exhaust chamber; 2.1: Smoke exhaust outlet; 2.2: Smoke exhaust sealing plate; 2.3: Silencing chamber; 3: Airflow guide; 4: Return heat sink, 4.1: Return pipe, 4.2: Heat dissipation air distribution plate, 4.21: Heat dissipation air outlet. Detailed Implementation

[0021] The present invention will be further explained in conjunction with the embodiments: 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 reduce the load on the motor in the fan is a technical problem that the inventor urgently needs to solve.

[0022] 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.

[0023] The specific implementation examples are detailed below: Please refer to the attached document. Figures 1-6 This embodiment provides a fan assembly for reducing fan load.

[0024] The fan assembly includes a fan 1 for generating airflow to treat fumes; the fan 1 has an air outlet 1.1 through which airflow is discharged; the fan assembly also includes a smoke exhaust chamber 2, which is directly connected to the air outlet 1.1 of the fan 1 to receive the airflow output from the air outlet 1.1, and the smoke exhaust chamber 2 is also provided with a smoke exhaust outlet 2.1 for guiding the airflow to the external environment; A key feature of this embodiment is that the fan assembly also includes a guide member 3, which is fixedly installed inside the exhaust chamber 2 and precisely positioned on the airflow path of the outlet 1.1. This means that the airflow discharged from the outlet 1.1 will directly encounter the guide member 3 during its flow. The guide member 3 is designed with a specific guiding surface that can effectively guide part of the airflow output from the outlet 1.1 towards the exhaust outlet 2.1, thereby changing the natural flow trajectory of the airflow. In this way, by setting the guide member 3, the airflow discharged from the outlet 1.1 will not directly impact the inner wall of the exhaust chamber 2 (especially the lower plate area), but will be actively guided to the exhaust outlet 2.1 by the guiding surface. This simplifies the airflow transmission path and avoids unnecessary turbulence or backflow in the exhaust chamber 2. At the same time, the direct impact force of the airflow on the lower plate of the exhaust chamber 2 is significantly reduced, reducing the energy loss caused by the impact. Therefore, this design can reduce the load on the motor in fan 1, because the motor no longer needs to overcome additional airflow resistance to maintain air pressure; the reduction in load directly reduces the heat generated by the motor during operation, avoiding the problem of increased internal resistance due to excessive temperature; finally, by optimizing the airflow path, the oil fume extraction efficiency of fan 1 is improved, and the oil fumes are discharged more smoothly, thereby improving the overall oil fume extraction effect and reducing energy consumption.

[0025] In a further embodiment, the guide element 3 is positioned adjacent to the air outlet 1.1 of the fan 1. This means that the distance between the guide element 3 and the air outlet 1.1 is minimized, ensuring that it is directly located in the initial flow area where the airflow has just left the air outlet 1.1. In this way, the guide element 3 can contact the discharged airflow at the air outlet 1.1 immediately and instantly change the flow trend of the airflow. Specifically, the guide surface of the guide element 3 applies force in the initial stage of the airflow, causing the flow direction of the airflow to quickly deviate from its potentially disordered or diffused state towards the target direction of the smoke exhaust outlet 2.1. Therefore, this adjacent placement more directly achieves the technical effects of the above embodiments: by intervening in the airflow path as early as possible, the guide element 3 more effectively simplifies the airflow conduction process, reducing the stagnation and energy loss of the airflow in the smoke exhaust chamber 2. This further reduces the load on the motor in the fan 1, because the motor does not need additional energy to correct or compensate for the initial diffusion of the airflow, thereby significantly reducing the heat generation and efficiency loss of the motor, and more reliably improving the smoke extraction performance in actual operation.

[0026] In a further embodiment, the guide surface of the guide element 3 is specifically designed in an arc shape. This arc-shaped guide surface has smooth curved surface features, which can divide the airflow output from the outlet 1.1 into two parts: one part is guided as the main airflow directly blowing towards the smoke exhaust outlet 2.1, and the other part serves as other airflow, whose flow direction is not fully controlled, and may form a secondary flow. In this way, the arc-shaped guide surface generates lower flow resistance when the airflow comes into contact, because the curved surface design allows the airflow to glide smoothly, rather than generating friction or eddies like a flat surface or sharp edge; this reduces energy loss when the airflow passes through the guide element 3. Therefore, the load on the motor in the fan 1 is further reduced, because the resistance that the motor needs to overcome is smaller; at the same time, inevitably, in addition to the majority of the airflow effectively guided to the smoke exhaust outlet 2.1 by the guide surface, there will be a small amount of other airflow, which may be partially diffused or deviated due to the curvature of the arc surface, but overall does not affect the optimization effect of the main airflow path, thus providing additional benefits in terms of reducing energy consumption and heat.

[0027] In a further embodiment, a smoke exhaust chamber 2 is provided with a smoke exhaust sealing plate 2.2 at the end away from the smoke exhaust outlet 2.1. The smoke exhaust sealing plate 2.2 serves as the closed end of the smoke exhaust chamber 2, used to restrict airflow. A specific silencing chamber 2.3 is formed between the smoke exhaust sealing plate 2.2 and the guide member 3. The silencing chamber 2.3 is a relatively enclosed space. At least one gap is also designed at the edge of the guide member 3, which allows the "other airflow" described in the above embodiment to flow into the silencing chamber 2.3. In this way, for the small portion of other airflow that cannot be completely guided to the smoke exhaust outlet 2.1 by the guide surface, the gap provides a channel to enter the silencing chamber 2.3. After these airflows enter the silencing chamber 2.3, they will repeatedly reflect and collide between the walls of the smoke exhaust sealing plate 2.2 and the guide member 3, gradually consuming their kinetic energy and weakening the noise energy. Through multiple reflections, the movement of the airflow is damped, and the noise is absorbed or attenuated. Therefore, this design not only addresses the interference of secondary airflow, but also further optimizes the acoustic performance of the fan assembly through the silencing cavity 2.3, reduces overall operating noise, and ensures that the energy of this airflow is effectively dissipated, thereby indirectly supporting the technical effects of reducing motor load and heat.

[0028] In a further embodiment, a return heat sink 4 is also included, which consists of two parts: a return pipe 4.1, which is directly connected to a certain position in the exhaust chamber 2 and can receive part of the airflow output from the air outlet 1.1; and a heat dissipation air distribution plate 4.2, which is connected to the end of the return pipe 4.1 and outputs the return gas transported by the return pipe 4.1 to the outer casing area of ​​the fan 1. In this way, by introducing the return heat sink 4, a part of the airflow output from the air outlet 1.1 is diverted into the return pipe 4.1, and then guided to the fan 1 through the heat dissipation air distribution plate 4.2; when the return gas flows through the outer casing surface of the fan 1, it absorbs and carries away the heat generated by the motor, thereby achieving active cooling of the fan 1. Therefore, this design directly addresses the problem of motor heat dissipation: by utilizing part of the airflow for recirculation heat dissipation, the operating temperature of fan 1 is reduced, and the increase in resistance and decrease in efficiency caused by the accumulation of heat in the motor are reduced; this not only reduces energy consumption, but also improves the long-term reliability of the motor and the stability of the fume extraction effect.

[0029] In a further embodiment, the return duct 4.1 is specifically located adjacent to the exhaust outlet 2.1. This means that the inlet or connection point of the return duct 4.1 is located near the exhaust outlet 2.1, rather than near the air outlet 1.1 or other areas. This makes the spatial arrangement of the return duct 4.1 more compact and efficient, as it avoids crossing or interfering with the main airflow path at the air outlet 1.1. Simultaneously, since the airflow pressure and velocity at the exhaust outlet 2.1 are relatively stable, the introduction of the return duct 4.1 minimizes its impact on the main airflow. Therefore, this proximity arrangement ensures that the return cooling function is achieved without increasing additional airflow resistance or energy loss, facilitating the overall layout of the fan components and minimizing potential interference with the airflow at the air outlet 1.1, thereby more reliably supporting the technical effects of reducing motor load and improving heat dissipation.

[0030] In a further embodiment, the heat dissipation air distribution plate 4.2 is designed as a hollow annular component with a closed internal cavity serving as a channel for airflow distribution. Several heat dissipation air outlets 4.21 are provided on the surface of the heat dissipation air distribution plate 4.2, allowing for uniform airflow. Thus, the return gas supplied from the return pipe 4.1 first enters the internal cavity of the heat dissipation air distribution plate 4.2, is then distributed and buffered within this cavity, and finally dispersed and output through the multiple heat dissipation air outlets 4.21. This ensures a more uniform and controllable distribution of airflow on the surface of the fan 1 casing. Therefore, the hollow internal design and multiple heat dissipation air outlets 4.21 make airflow distribution more efficient, improving heat dissipation and more effectively reducing the temperature of the fan 1 by avoiding localized hot spots. This further reduces heat generation from the motor and supports the technical goal of energy reduction.

[0031] In a further embodiment, the heat dissipation air distribution plate 4.2 is strategically positioned around the air inlet 1.2 of the fan 1. This means that the shape and position of the heat dissipation air distribution plate 4.2 are adapted to the outer periphery of the air inlet 1.2. Simultaneously, heat dissipation air outlets 4.21 are spaced apart on the inner contour of the heat dissipation air distribution plate 4.2; for example, there could be four heat dissipation air outlets 4.21 evenly distributed along the inner edge. Thus, with the heat dissipation air distribution plate 4.2 surrounding the air inlet 1.2, the heat dissipation air outlets 4.21 directly face the outer casing area of ​​the fan 1. When the fan 1 is running, the suction force generated by its air inlet 1.2 provides auxiliary power for the flow of returning gas, helping the gas to flow more smoothly from the heat dissipation air outlets 4.21 and across the outer casing surface. Therefore, this arrangement makes the return heat dissipation more direct and efficient, fully utilizing the suction force of the air inlet 1.2, enhancing the flow rate and coverage of the gas return, thereby significantly reducing the temperature of the fan 1, reducing the motor load, and improving the overall stability of the fume extraction effect.

[0032] In a further embodiment, the exhaust chamber 2 is specifically designed to have a transversely arranged exhaust channel that extends horizontally or approximately horizontally. An exhaust outlet 2.1 and an exhaust sealing plate 2.2 are respectively located at both ends of the exhaust channel; that is, the exhaust outlet 2.1 is located at one end of the channel for exhaust, while the exhaust sealing plate 2.2 is located at the opposite end for sealing. This transverse exhaust channel design is more spatially rational and concise, facilitating integration with other components (such as the air guide 3 or the silencer 2.3). It ensures that the airflow direction is aligned with the geometry of the exhaust chamber 2, reducing energy loss due to bending or turning. Therefore, this layout optimizes the overall structure of the fan assembly, facilitating installation and maintenance in integrated stoves and other equipment, while supporting the noise reduction function of the silencer 2.3 in the above embodiment, and indirectly enhancing the technical effect of reducing motor load.

[0033] This embodiment relates to an integrated stove, which includes a fan assembly as described in any of the above embodiments. This means that the core structure of the integrated stove includes a fan assembly with a flow guide 3, and optionally also includes a return flow heat dissipation component 4, etc. Specifically, the fan assembly is integrated into the fume treatment system of the integrated stove. The fan 1 is used to draw in and exhaust fumes, while the exhaust chamber 2 and the flow guide 3 are arranged in the internal space of the integrated stove. Thus, by setting this fan assembly, the integrated stove can achieve the technical effects described in any of the above embodiments; this results in lower energy consumption and better fume extraction during operation, and solves the efficiency reduction problem caused by motor overheating in the prior art. Therefore, this integrated stove provides more reliable and efficient fume treatment performance in home or commercial environments.

[0034] 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.

[0035] 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.

[0036] 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 fan assembly for reducing fan load, comprising a fan (1) and a smoke exhaust chamber (2) connected to the air outlet (1.1) of the fan (1), the smoke exhaust chamber (2) having a smoke exhaust outlet (2.1), characterized in that, It also includes: The guide (3) is disposed in the smoke exhaust chamber (2) and located on the air outlet (1.1) air flow path; The guide member (3) has a guide surface that directs at least a portion of the airflow output from the air outlet (1.1) to the smoke exhaust outlet (2.1).

2. The wind turbine assembly according to claim 1, characterized in that: The air guide (3) is disposed adjacent to the air outlet (1.1).

3. The wind turbine assembly according to claim 2, characterized in that: The guide element (3) has an arc-shaped guide surface that guides the airflow output from the air outlet (1.1) toward the part of the smoke exhaust outlet (2.1) and other parts.

4. The wind turbine assembly according to claim 2, characterized in that: A smoke exhaust sealing plate (2.2) is provided at the end of the smoke exhaust chamber (2) away from the smoke exhaust outlet (2.1), and the smoke exhaust sealing plate (2.2) and the guide member (3) form a sound-absorbing chamber (2.3). The edge of the guide (3) has a gap that allows airflow from other parts to flow into the silencing cavity (2.3).

5. The wind turbine assembly according to claim 1, characterized in that: It also includes a recirculation heat dissipation component (4); The return heat dissipation component (4) includes a return pipe (4.1) connected to the smoke exhaust chamber (2) and a heat dissipation air distribution plate (4.2) connected to the return pipe (4.1) and outputting the return gas to the fan (1).

6. The wind turbine assembly according to claim 5, characterized in that: The return pipe (4.1) is located adjacent to the smoke exhaust outlet (2.1).

7. The wind turbine assembly according to claim 5, characterized in that: The heat dissipation air distribution plate (4.2) is a hollow ring-shaped component with several heat dissipation air outlets (4.21) on it.

8. The wind turbine assembly according to claim 7, characterized in that: The heat dissipation air distribution plate (4.2) is arranged around the air inlet (1.2) of the fan (1), and the heat dissipation air outlet (4.21) is opened at intervals on the inner contour of the heat dissipation air distribution plate (4.2).

9. The wind turbine assembly according to claim 4, characterized in that: The smoke exhaust chamber (2) has a horizontally arranged smoke exhaust channel, and the smoke exhaust outlet (2.1) and the smoke exhaust sealing plate (2.2) are respectively arranged at both ends of the smoke exhaust channel.

10. An integrated stove, characterized in that: The fan assembly is provided with any one of claims 1 to 9.

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