Multi-layer composite bottom oil gathering pot

Abstract

The utility model discloses a multi-layer composite bottom oil gathering pot which comprises a pot body, an interlayer and a magnetic conductive layer are sequentially arranged at the bottom of the pot body, a sinking plane and a first oil gathering area serving as the inner bottom of the pot body are arranged in the center of the inner bottom face of the pot body, and an inclined face inclining towards the center and a second oil gathering area serving as the inner bottom of the pot body are arranged on the outer side of the sinking plane. The outer side of the inclined face is a plane or an inclined face inclining towards the center and serves as a third oil gathering area of the inner bottom of the pot body, the bottom face of the outer bottom of the magnetic conductive layer is a plane, and the middle area of the outer bottom of the magnetic conductive layer is a sinking area which is concaved inwards. The sunken first oil gathering area, the second oil gathering area and the third oil gathering area are arranged at the central position of the inner bottom surface of the pan body, so that oil can still be gathered in the middle when the pan bottom is heated by open fire to generate convex deformation; meanwhile, the center of the outer bottom of the magnetic conductive layer is provided with the concave sinking area, and bottom concave deformation can be effectively controlled.

Description

Technical Field

[0001] This utility model relates to the technical field of cookware with oil-retaining function, belonging to the field of cooking utensils, and particularly to a multi-layer composite bottom oil-retaining pot. Background Technology

[0002] To achieve the effect of oil retention, cookware typically has its inner bottom shaped into a large, convex arc surface, while the outer bottom is equipped with anti-slip convex steps. For cookware with multiple layers of composite materials on the bottom, the thermal expansion and contraction properties of each material need to be considered, and the various physical properties of the materials need to be combined to enhance the stability of the bottom. The design of oil retention structure and anti-convex structure on the bottom can achieve a cookware that can stably retain oil in both hot and cold conditions.

[0003] When cookware is heated over an open flame or on an induction cooker, uneven heating and the different thermal expansion and contraction properties of various materials cause the bottom of the pot to easily deform, either bulging upwards or concave downwards. With open flame heating, the deformation trend is that the center of the bottom bulges upwards, causing oil to easily spread to the periphery and making it extremely difficult for it to return to the center. The center of the pot also gets very hot, making food in the center prone to burning. With induction cooker heating, the deformation trend is exactly the opposite; the center of the pot tends to concave downwards. While this helps retain oil, the pot loses its balance on the flat surface of the induction cooker, making it prone to slipping and spinning, hindering cooking. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model designs a multi-layer composite bottom oil pan.

[0005] The present invention adopts the following technical solution:

[0006] A multi-layered composite bottom oil-collecting pot includes a pot body. A sandwich layer and a magnetically conductive layer are sequentially arranged at the bottom of the pot body. A sunken plane is located at the center of the bottom surface of the pot body, forming the first oil-collecting area. An inclined surface sloping towards the center is located outside the sunken plane, forming the second oil-collecting area. The outer side of the inclined surface is either a flat plane or an inclined surface sloping towards the center, forming the third oil-collecting area. The bottom surface of the outer bottom of the magnetically conductive layer is flat, and the middle area of ​​the outer bottom of the magnetically conductive layer is a sunken area that is concave inwards. This invention, by setting a sunken first oil-collecting area and second and third oil-collecting areas with an oil-blocking effect at the center of the bottom surface of the pot body, can effectively counteract the upward deformation of the pot bottom caused by open flame heating, while still allowing oil to collect in the middle. Simultaneously, the concave sunken area at the center of the outer bottom of the magnetically conductive layer can effectively control the downward deformation of the bottom.

[0007] Preferably, the oil accumulation diameter D1 of the first oil accumulation zone is 1 / 2 to 2 / 3 of the inner bottom diameter, and the sinking depth H1 is 1.5-3.5 mm.

[0008] Preferably, the angle between the second oil-gathering region and the first oil-gathering region is 2° to 10°, and the second oil-gathering region and the first oil-gathering region are connected by a circular arc.

[0009] Preferably, the third oil-gathering zone transitions to the second oil-gathering zone with an arc.

[0010] Preferably, the sunken area is D3, 40≦D3≦D1, and the depth of the sunken area H2=(1 / 5~1 / 3)*H1.

[0011] Preferably, the outer plane area of ​​the sunken area is provided with one or more circumferential grooves depending on the size of the plane area, and multiple radial grooves are provided on the circumferential grooves.

[0012] Preferably, the interlayer has a melting point of 500-1000℃ and a Mohs hardness of 2.5-3.0.

[0013] Preferably, the groove depth of the circumferential groove is H3, H3≦H2, and multiple radial grooves are evenly distributed along the circumference.

[0014] Preferably, the thinnest thickness of the bottom of the oil-collecting pot is H5, where H5 ≥ 2.3 mm.

[0015] As a preferred option, the amount of deformation of the bottom of the oil-filled pot under heat is also related to the thickness and physical properties of each layer of material at the bottom. The pot body is made of steel, iron, titanium, etc. The pot can have a flat inner bottom or a textured structure. If the inner bottom of the cookware has an embossed or etched pattern, the depth of the pattern should be 0.1-0.25mm. The thickness of each material in the pot body should be δ1: 0.3mm ≤ δ1 ≤ 1.0mm. The materials of the interlayer can be pure aluminum, aluminum alloy, aluminum-copper double layer, aluminum-copper-aluminum triple layer, etc. The thickness of the interlayer should be δ2: δ2 ≥ 2.0mm. The interlayer material needs to have properties such as low melting point, low hardness, and high plasticity. Under the action of processes such as cold extrusion or brazing, the shape of the interlayer needs to be changed according to the shape of the cavity. The volume of the interlayer cannot exceed the volume inside the cavity. The melting point of the interlayer is 500-1000℃, and the Mohs hardness is 2.5-3.0. The material of the magnetic conductive layer is: 430, 410 and other materials with good magnetic permeability, and the thickness is δ3: 0.3≦δ3≦0.7mm. The thickness relationship of various materials is: δ1=δ3=(0.12~0.24)*δ2. The selection of the above material thickness also needs to take into account the weight of the product. Within the range that can ensure the thermal deformation change of the product, the product needs to be as light as possible to facilitate user operation.

[0016] The beneficial effects of this utility model are: (1) This utility model sets a first oil-gathering area and a second and third oil-gathering area with oil-blocking effect at the center of the bottom surface of the pot body, which can effectively offset the upward deformation of the pot bottom caused by open flame heating, and oil can still be gathered in the middle; at the same time, a concave sinking area is set at the center of the outer bottom of the magnetic layer, which can effectively control the downward deformation of the bottom of the oil-gathering pot; (2) The outer plane area of ​​the sinking area of ​​this utility model is provided with one or more circumferential grooves according to the size of the plane area, and multiple radial grooves are provided on the circumferential grooves, which further controls the downward deformation of the bottom of the oil-gathering pot. Attached Figure Description

[0017] Figure 1 This is an exploded view of this utility model;

[0018] Figure 2 This is a cross-sectional view of the present invention;

[0019] Figure 3 yes Figure 2 An enlarged view of point A in the middle;

[0020] Figure 4 yes Figure 2 An enlarged view of point B in the middle;

[0021] Figure 5 This is a schematic diagram of the external structure of this utility model;

[0022] In the diagram: 1. Pot body, 2. Jacket, 3. Magnetic conductive layer, 4. First oil-gathering zone, 5. Second oil-gathering zone, 6. Third oil-gathering zone, 7. Sinking area, 8. Outer ring diverging groove, 9. Outer ring groove, 10. Inner ring groove, 11. Inner ring diverging groove. Detailed Implementation

[0023] The technical solution of this utility model will be further described in detail below through specific embodiments and with reference to the accompanying drawings:

[0024] Example: Figure 1 and Figure 2 As shown, a multi-layer composite bottom oil-gathering pot includes a pot body 1, with a jacket 2 and a magnetic conductive layer 3 sequentially arranged at the bottom of the pot body. A sunken plane is provided at the center of the bottom surface of the pot body, which is the first oil-gathering area 4 of the bottom surface of the pot body. An inclined plane sloping towards the center is provided on the outer side of the sunken plane, which is the second oil-gathering area 5 of the bottom surface of the pot body. The outer side of the inclined plane is either a plane or an inclined plane sloping towards the center, which is the third oil-gathering area 6 of the bottom surface of the pot body. The bottom surface of the outer bottom of the magnetic conductive layer is a plane, and the middle area of ​​the outer bottom of the magnetic conductive layer is an inwardly recessed sunken area 7.

[0025] like Figure 3As shown, the oil accumulation diameter D1 of the first oil accumulation zone is 1 / 2 to 2 / 3 of the inner bottom diameter, and the sinking depth H1 is 1.5-3.5 mm. The angle between the second and first oil accumulation zones is 2° to 10°, and the second and first oil accumulation zones transition with an arc. The oil accumulation diameter D2 of the second and first oil accumulation zones is the same. The third oil accumulation zone transitions with the second oil accumulation zone with an arc. The sinking area is D3, where 40° ≦ D3 ≦ D1, and the depth of the sinking area H2 = (1 / 5 to 1 / 3) * H1.

[0026] like Figure 4 As shown, the angle between the two ends of the magnetic conductive layer and the bottom surface is 45°.

[0027] like Figure 5 As shown, two circular grooves are provided outside the sunken area on the bottom surface of the magnetic conductive layer, namely an outer groove 9 and an inner groove 10. Three inner-circle diverging grooves 11 are evenly distributed along the outer circumference of the inner groove, and three outer-circle diverging grooves 8 are evenly distributed along the inner circumference of the outer groove. The inner and outer diverging grooves are evenly spaced. Figure 3 As shown, the groove depths of the outer and inner rings are H3, where H3 ≦ H2. The thinnest thickness of the bottom of the oil-collecting pot is H5, where H5 ≧ 2.3 mm, and the maximum thickness of the bottom of the oil-collecting pot is H4.

[0028] When using this invention, cooking oil is poured into the center of the inner bottom. During heating, the central area of ​​the bottom of the pot will bulge slightly. The deformation trend of the bottom of the pot is that the first oil-gathering area gradually flattens out. However, the setting of the second and third oil-gathering areas increases the oil-gathering structure of the inner bottom, which allows the center of the pot bottom, which is at the highest temperature, to remain moist with cooking oil even when deformed by open flame. This makes it less likely for food to burn, allowing for the cooking of delicious food, which is more beneficial to human health. After the pot is used and cooled, the center of the bottom of the pot will return to its state before use, that is, there is a concave oil-gathering area in the center of the bottom of the pot.

[0029] Meanwhile, a recessed sunken area is set in the center of the outer bottom of the magnetic layer. The outer plane area of ​​the sunken area is set with one or more circumferential grooves according to the size of the plane area. Multiple radial grooves are set on the circumferential grooves, which can effectively control the concave deformation of the bottom of the oil pot and prevent the pot from losing balance on the flat induction cooker and easily slipping and spinning.

[0030] The embodiments described above are merely preferred solutions of this utility model and are not intended to limit this utility model in any way. Other variations and modifications are possible without departing from the technical solutions described in the claims.

Claims

1. A multi-layer composite bottom oil-pot, comprising a pot body, a sandwich layer and a magnetic conducting layer are arranged in sequence at the bottom of the pot body, characterized in that, The bottom surface of the pot body has a sunken plane at its center, which is the first oil-gathering area of ​​the bottom of the pot body. The outer side of the sunken plane has an inclined plane that slopes towards the center, which is the second oil-gathering area of ​​the bottom of the pot body. The outer side of the inclined plane is either a plane or an inclined plane that slopes towards the center, which is the third oil-gathering area of ​​the bottom of the pot body. The bottom surface of the outer bottom of the magnetic conductive layer is a plane, and the middle area of ​​the outer bottom of the magnetic conductive layer is a sunken area that is recessed inward.

2. The multi-layered composite base oiler pot according to claim 1, wherein, The oil accumulation diameter D1 of the first oil accumulation zone is 1 / 2 to 2 / 3 of the inner bottom diameter, and the sinking depth H1 is 1.5-3.5 mm.

3. The multi-layered composite base oil pan of claim 1, wherein, The angle between the second oil-gathering zone and the first oil-gathering zone is 2°~10°, and the second oil-gathering zone and the first oil-gathering zone are connected by a circular arc.

4. The multi-layer composite oil pan of claim 1, wherein, The third oil-gathering zone transitions to the second oil-gathering zone with an arc.

5. The multi-layer composite bottom oil pan according to claim 2, characterized in that, The sunken area is D3, 40≦D3≦D1, and the depth of the sunken area H2=(1 / 5~1 / 3)*H1.

6. The multi-layer composite base oil pan of claim 5, wherein, The outer plane of the sunken area is provided with one or more circumferential grooves depending on the size of the plane area, and multiple radial grooves are provided on the circumferential grooves.

7. The multi-layer composite oil pan of claim 1, wherein, The interlayer has a melting point of 500-1000℃ and a Mohs hardness of 2.5-3.

0.

8. The multi-layer composite base oil pan of claim 6, wherein, The groove depth of the circumferential groove is H3, H3≦H2, and multiple radial grooves are evenly distributed along the circumference.

9. The multi-layer composite oil pan of claim 1, wherein, The thinnest thickness of the bottom of the oil-collecting pot is H5, where H5 ≥ 2.3 mm.

10. The multi-layer composite base oil pan of claim 1, wherein, The bottom of the pot body has an extruded or etched pattern.

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