Air cavity structure of integrated cooker

Abstract

The utility model discloses an air cavity structure of an integrated stove, and relates to the field of integrated stoves. An internal air cavity structure of a traditional integrated cooker generally does not have an active oil fume separation structure, oil stains are collected into an oil box in a natural dripping mode, oil fume accumulation is often easily caused, and the cleaning difficulty is increased. The device comprises a centrifugal fan, a cyclone separator, an oil box, a suction air duct and an air outlet duct, the centrifugal fan is arranged on the cyclone separator, an air inlet in the lower end of the centrifugal fan is connected to an air outlet in the upper end of the cyclone separator, and the suction air duct is connected to the side face of the upper end of the cyclone separator. An air outlet of the centrifugal fan is connected with the air outlet duct; and the oil box is arranged below an oil outlet at the lower end of the cyclone separator. The cyclone separator is additionally arranged below the centrifugal fan for active oil fume separation, oil fume separation is more efficient, and the cleaning convenience of the integrated cooker is improved.

Description

Technical Field

[0001] The utility model relates to the field of integrated stoves, in particular to an air cavity structure of an integrated stove. Background Art

[0002] With the continuous advancement of integrated stove technology, a variety of integrated stove models have appeared on the market. However, these products still have some design flaws, especially in terms of optimizing the internal structure. The internal air cavity structure of traditional integrated stoves generally includes an intake flue, an exhaust fan, and an exhaust flue. There is generally no active oil fume separation structure. Oil is collected by natural dripping into the oil box, which often leads to oil fume accumulation and increases the difficulty of cleaning. Therefore, there is an urgent need for a new integrated stove internal air cavity structure that can effectively separate oil fume. Utility Model Content

[0003] The technical problem to be solved and the technical task proposed by the present invention are to improve and perfect the existing technical solutions and provide an integrated stove air chamber structure to better achieve oil smoke separation. To this end, the present invention adopts the following technical solutions.

[0004] An integrated stove air chamber structure includes a centrifugal fan, a cyclone separator, an oil box, an intake duct, and an outlet duct. The centrifugal fan is located above the cyclone separator, the air inlet at the lower end of the centrifugal fan is connected to the air outlet at the upper end of the cyclone separator, the intake duct is connected to the side surface of the upper end of the cyclone separator, the air outlet of the centrifugal fan is connected to the outlet duct, and the oil box is located below the oil outlet at the lower end of the cyclone separator. By adding a cyclone separator below the centrifugal fan for active oil fume separation, oil fume separation is more efficient than traditional oil collection methods, improving the convenience of cleaning the integrated stove and extending the maintenance cycle of the air chamber.

[0005] As a preferred technical approach, the cyclone separator comprises a heat-insulating plastic housing and an oleophobic metal coating, which fully covers the inner surface of the plastic housing. The oleophobic metal coating within the heat-insulating plastic housing not only ensures the device's heat resistance, but also facilitates the flow of oil droplets and the collection of oil contaminants, preventing oil stains from adhering to the inner surface of the cyclone separator, thereby improving the device's cleanliness and service life.

[0006] As a preferred technical means, the cyclone separator is designed with an elliptical upper portion and a gradually tapered elliptical lower portion, which optimizes the flow path of the airflow in the cyclone separator and improves the oil fume separation effect.

[0007] As a preferred technical means, the ratio of the major axis to the minor axis of the elliptical cone of the cyclone separator is in the range of 1.65-1.85, which has a better oil fume separation effect and ensures that the cyclone separator has a reasonable volume and weight while maintaining high oil fume separation efficiency.

[0008] As a preferred technical means: the diameter of the centrifugal fan is not greater than 1.35 times the short axial dimension of the cyclone separator, which can ensure the stability of the structure and high support reliability.

[0009] As a preferred technical approach, the lower end of the centrifugal fan is connected to the cyclone separator via a heat-resistant, oleophobic interface component. The cyclone separator's upper air outlet is equipped with a downwardly protruding circular ring. The heat-resistant, oleophobic interface component includes an interface ring with an outer diameter smaller than the inner diameter of the circular ring, which is embedded within the circular ring. This improves the stability and sealing of the connection, prevents oil smoke leakage, and facilitates disassembly and maintenance of the equipment. The heat-resistant, oleophobic interface component effectively prevents oil droplets from accumulating at the connection point.

[0010] As a preferred technical measure, the suction duct includes a left duct and a right duct. The cyclone separator's long axis is oriented left and right, and the left and right ducts are connected to the air inlets on the left and right ends of the cyclone separator, respectively. Arranged along the cyclone separator's long axis, this ensures uniform intake of oil smoke, improving both the efficiency and uniformity of oil smoke separation.

[0011] As a preferred technical approach, the left and right air ducts are symmetrical about the center of the cyclone separator. Their horizontal cross-sections are quadrilaterals, with right-angled rear corners and curved fronts. They slope gradually forward from top to bottom, with their bases aligned with the air inlets on the left and right ends of the cyclone separator. This structure optimizes the air duct structure based on the internal space of the integrated stove, effectively directing oil smoke into the cyclone separator.

[0012] As a preferred technical means: the bottom sides of the left and right air ducts are connected to the air inlet of the cyclone separator through metal pipes. Since the oil smoke gathers at the connection point and the temperature is relatively high, the metal pipe connection is not easily damaged by aging.

[0013] As a preferred technical measure, the lower oil outlet of the cyclone separator is provided with an oleophobic interface, which is connected to the upper rear end of the oil box via an open slot. The oleophobic interface prevents oil from collecting and allows it to flow easily into the oil box below. The open slot connection makes the oil box easy to assemble and disassemble, and is therefore easy to maintain.

[0014] Beneficial effects: Compared with the oil collection method of the traditional air cavity structure, the air cavity structure is more efficient in oil fume separation, improves the cleaning convenience of the integrated stove, and has a longer maintenance cycle of the air cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic structural diagram of the utility model.

[0016] Figure 2 It is a schematic diagram of the connection between the centrifugal fan and the cyclone separator in the utility model.

[0017] In the figure: 1. Centrifugal fan; 2. Cyclone separator; 3. Oil box; 4. Intake duct; 5. Outlet duct; 6. Heat-resistant oleophobic interface; 7. Oleophobic interface; 201. Circular ring; 601. Interface ring; 602. Height limit ring. DETAILED DESCRIPTION

[0018] The technical solution of the present invention is further described in detail below with reference to the accompanying drawings.

[0019] In the description of the present invention, it should be understood that terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Since the embodiments disclosed in the present invention can be set in different directions, these terms indicating directions are only for illustration and should not be regarded as limitations. For example, "up" and "down" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

[0020] like Figure 1 As shown, an integrated stove air chamber structure includes a centrifugal fan 1, a cyclone separator 2, an oil box 3, an air intake duct 4 and an air outlet duct 5. The centrifugal fan 1 is arranged above the cyclone separator 2, and an air inlet is provided at the lower end of the centrifugal fan 1, which is connected to the air outlet at the upper end of the cyclone separator 2. The air intake duct 4 is connected to the side surface of the upper end of the cyclone separator 2, the air outlet of the centrifugal fan 1 is connected to the air outlet duct 5, and the oil box 3 is arranged below the oil outlet at the lower end of the cyclone separator 2.

[0021] To facilitate the flow of oil droplets down the inner surface of cyclone separator 2, cyclone separator 2 includes a thermally insulating plastic shell and an oleophobic metal coating. The oleophobic metal coating fully covers the inner surface of the plastic shell. The oleophobic metal coating within the thermally insulating plastic shell not only ensures the device's heat resistance, but also facilitates the flow of oil droplets down the inner surface of cyclone separator 2, facilitating the collection of oil contamination and preventing oil stains from adhering to the inner surface of cyclone separator 2, thereby improving the cleanliness and service life of the device.

[0022] In order to improve the oil fume separation effect, the cyclone separator 2 is designed with an elliptical upper portion and a gradually tapered elliptical lower portion, thereby optimizing the flow path of the airflow in the cyclone separator 2 and improving the oil fume separation effect.

[0023] In order to better improve the oil fume separation effect, the ratio of the major axis to the minor axis of the elliptical cone of the cyclone separator 2 is 1.75, which has a better oil fume separation effect and ensures that the cyclone separator 2 has a reasonable volume and weight while maintaining efficient oil fume separation.

[0024] In order to ensure structural stability, the diameter of the centrifugal fan 1 is equal to 1.25 times the short axial dimension of the cyclone separator 2. This ensures structural stability and high support reliability.

[0025] In order to improve the stability of the connection and prevent oil droplets from gathering at the connection position, such as Figure 2 As shown, the air inlet at the lower end of the centrifugal fan 1 is connected to the cyclone separator 2 through the heat-resistant oleophobic interface part 6. The air outlet at the upper end of the cyclone separator 2 is provided with a downwardly protruding circular ring 201. The heat-resistant oleophobic interface part 6 is provided with an interface ring 601 with an outer diameter smaller than the inner diameter of the circular ring 201. The interface ring 601 is embedded in the circular ring 201. The gap between the circular ring 201 and the interface ring 601 matches. The outer side of the interface ring 601 is provided with a height limiting ring 602. The lower end of the height limiting ring 602 is in contact with the upper end face of the cyclone separator 2. The nested connection structure improves the stability and sealing of the connection, prevents oil smoke leakage, has high reliability, and facilitates the disassembly and maintenance of the equipment. The use of the heat-resistant oleophobic interface part 6 for connection can effectively prevent oil droplets from gathering at the connection position.

[0026] To improve the efficiency and uniformity of oil fume separation, the intake duct 4 includes a left duct and a right duct. The long axis of the cyclone separator 2 is oriented left and right, and the left and right ducts are respectively connected to the air inlets on the left and right ends of the cyclone separator 2. This arrangement, based on the long axis of the cyclone separator 2, ensures uniform intake of oil fume into the cyclone separator 2, improving the efficiency and uniformity of oil fume separation.

[0027] To optimally guide oil smoke into cyclone separator 2, the left and right air ducts are symmetrical about the center of cyclone separator 2. Their horizontal cross-sections are quadrilaterals, with right angles at the rear corners and an arc at the front. They slope gradually forward from top to bottom, with their bottoms aligned with the air inlets on the left and right ends of cyclone separator 2. This structure optimizes the air duct structure based on the internal space of the integrated stove, optimally guiding oil smoke into cyclone separator 2.

[0028] To improve the connection reliability between the suction duct 4 and the air inlet of the cyclone separator 2, the bottom sides of the left and right ducts are connected to the air inlet of the cyclone separator 2 through metal pipes. Because the oil smoke gathers at the connection point and the temperature is relatively high, the use of metal pipes is less prone to aging and damage, and has high reliability.

[0029] To facilitate the flow of oil droplets into the oil box 3 and facilitate maintenance of the oil box 3, an oleophobic interface 7 is provided at the lower oil outlet of the cyclone separator 2. The upper rear end of the oil box 3 is connected to the oleophobic interface 7 via an open slot. The use of the oleophobic interface 7 at the connection prevents oil from collecting and allows it to flow into the oil box 3 below. The open slot connection makes the oil box 3 easy to disassemble and maintain.

[0030] In this example, the heat-resistant oleophobic interface member 6 at the lower end of the centrifugal fan 1 and the oleophobic interface 7 at the lower end of the cyclone separator 2 are both made of heat-resistant plastic, and the inner sides are coated with an oleophobic metal coating.

[0031] When the integrated stove is operating, when oil smoke enters the stove through the hood head, it first passes through the left and right air ducts into cyclone separator 2. Then, under the power of centrifugal fan 1, cyclone separator 2 separates the oil smoke through its structure. Using centrifugal force, fine particles in the oil smoke are thrown onto the oleophobic metal coating. Then, they slide down the inner wall and flow into the oil box 3 below. The gas enters the centrifugal fan 1 through counter-rotation and finally exits the integrated stove through air outlet duct 5. This achieves the purpose of filtering the oil smoke before it enters the fan, thereby greatly reducing the cleaning pressure inside the integrated stove. Compared with traditional oil collection methods, oil smoke separation is more efficient, improves the cleaning convenience of the integrated stove, and extends the maintenance cycle of the air cavity.

[0032] above Figure 1 、 2 The integrated stove air chamber structure shown is a specific embodiment of the present invention, which has embodied the substantial features and progress of the present invention. According to actual usage needs and under the guidance of the present invention, equivalent modifications in shape, structure, etc. can be made to it, which are all within the scope of protection of this scheme.

Claims

1. An integrated stove air chamber structure, characterized by: It includes a centrifugal fan, a cyclone separator, an oil box, an air intake duct and an air outlet duct. The centrifugal fan is arranged on the top of the cyclone separator. The air inlet at the lower end of the centrifugal fan is connected to the air outlet at the upper end of the cyclone separator. The air intake duct is connected to the side surface of the upper end of the cyclone separator. The air outlet of the centrifugal fan is connected to the air outlet duct. The oil box is arranged below the oil outlet at the lower end of the cyclone separator.

2. The integrated stove air chamber structure according to claim 1, characterized in that: The cyclone separator comprises a heat-insulating plastic shell and an oleophobic metal coating, wherein the oleophobic metal coating completely covers the inner cavity surface of the plastic shell.

3. The integrated stove air chamber structure according to claim 2, characterized in that: The upper portion of the cyclone separator is designed to be elliptical, and the middle and lower portions gradually narrow to be elliptical cones.

4. The integrated stove air chamber structure according to claim 3, characterized in that: The ratio of the major axis to the minor axis of the elliptical cone of the cyclone separator is in the range of 1.65-1.

85.

5. The integrated stove air chamber structure according to claim 4, characterized in that: The diameter of the centrifugal fan is no greater than 1.35 times the short axial dimension of the cyclone separator.

6. The integrated stove air chamber structure according to claim 5, characterized in that: The lower end of the centrifugal fan is connected to the cyclone separator through a heat-resistant and oil-repellent interface part. The air outlet at the upper end of the cyclone separator is provided with a downwardly protruding circular ring. The heat-resistant and oil-repellent interface part is provided with an interface ring whose outer diameter is smaller than the inner diameter of the circular ring. The interface ring is embedded in the circular ring.

7. The integrated stove air chamber structure according to claim 6, characterized in that: The suction air duct includes a left air duct and a right air duct. The long axis direction of the cyclone separator is left and right. The left air duct and the right air duct are respectively connected to the air inlets at the left and right ends of the cyclone separator.

8. The integrated stove air chamber structure according to claim 7, characterized in that: The left and right air ducts are symmetrical with respect to the center of the cyclone separator. The horizontal cross-sections of the left and right air ducts are quadrilaterals, the two rear corners are right angles, the front is arc-shaped, and they gradually tilt forward from top to bottom. The bottom is aligned with the air inlets on the left and right ends of the cyclone separator.

9. The integrated stove air chamber structure according to claim 8, characterized in that: The bottom side surfaces of the left air duct and the right air duct are connected to the air inlet of the cyclone separator through metal pipes.

10. The integrated stove air chamber structure according to claim 9, characterized in that: The oil outlet at the lower end of the cyclone separator is provided with an oil-repellent interface, and the upper end of the rear portion of the oil box is connected to the oil-repellent interface through an open slot.

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