CN220045566U - Container - Google Patents

Abstract

The utility model provides a container, which comprises a container base body and a magnetic conduction piece. The magnetic conduction piece is positioned on the outer surface of the container base body, and at least one first positioning structure is arranged on the surface of the magnetic conduction piece, which is far away from the container base body; the magnetic conduction piece is provided with at least one second positioning structure, and the container base body is provided with at least one third positioning structure matched with the second positioning structure in a positioning way, so that limit matching is formed between the magnetic conduction piece and the container base body, the container base body and the magnetic conduction piece are connected more reliably, the magnetic conduction piece is prevented from falling off, and the magnetic conduction stability of the container for electromagnetic heating is ensured.

Description

Container

Technical Field

The utility model relates to the field of container preparation, in particular to a container.

Background

Along with the continuous improvement of the living standard of people, the requirements on electric cookers on the market are also becoming finer and stricter, and at present, most of middle-high-end electric cookers and pressure cookers are heated by IH (electromagnetic induction), because IH heating not only has high power and the heating process can be controlled by a program, the multi-section heating is realized, the intelligent heating effect is realized, and compared with the traditional chassis heating, IH heating is more three-dimensional, and the energy efficiency utilization rate is higher.

But IH heating is realized by generating vortex through a coil disc and then enabling a metal liner to cut magnetic lines of force to generate heat. Therefore, the liner of the electric cooker or the electric pressure cooker is required to be made of magnetic permeability materials, and the traditional magnetic permeability materials are alloys such as iron, nickel, low carbon steel and the like, however, most of cooking vessels produced by the die casting process are aluminum alloys, and the aluminum alloys do not have magnetic permeability and are required to be subjected to magnetic permeability treatment at the bottom of the cooker body.

Therefore, how to make the container produced by die casting and other processes have magnetic permeability is a problem to be solved at present.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art or related art.

To this end, a first object of the utility model is to provide a container.

The technical scheme of the first aspect of the utility model provides a container, which comprises a container base body and a magnetic conduction piece. The magnetic conduction piece is positioned on the outer surface of the container base body, and at least one first positioning structure is arranged on the surface of the magnetic conduction piece, which is far away from the container base body.

Further, at least one second positioning structure is arranged on the magnetic conduction piece, and at least one third positioning structure matched with the second positioning structure in a positioning way is arranged on the container base body.

According to the technical scheme, the container comprises the container base body and the magnetic conduction piece, and the magnetic conduction piece has magnetic conduction performance, so that the container base body is not limited in material, and the container can be ensured to be used for electromagnetic heating. Wherein, be provided with at least one first location structure on the face that the magnetic conduction spare kept away from the container base member, this first location structure is used for realizing the location of magnetic conduction spare in the die cavity of mould, when container base member and magnetic conduction spare pass through the mould preparation shaping, can correspond the location structure that sets up the adaptation on the inner wall of die cavity, the location of magnetic conduction spare in the die cavity of mould can be realized through the location structure on the inner wall of magnetic conduction spare and die cavity like this, thereby can ensure the precision after the container base member machine-shaping, avoid magnetic conduction spare to take place the skew and influence the normal preparation of container base member in the die cavity. The magnetic conduction piece is also provided with at least one second positioning structure, and the container base body is provided with at least one third positioning structure matched with the second positioning structure in a positioning way.

In a specific application, the container base body and the magnetic conductive member are integrally formed, that is, when the container base body is prepared, the magnetic conductive member is prepared on the outer surface of the container base body, and the container base body is not prepared first, and then the magnetic conductive member is additionally attached. Further, the container base body and the magnetic conductive piece are integrally manufactured and formed through a die. Furthermore, the container base body is a metal piece, and the container base body and the magnetic conduction piece are integrally prepared and formed through a metal casting process. For example, when the container matrix is formed, the magnetic conductive member is added to the bottom of the cavity of the mold, so that the magnetic conductive member and the container matrix can be integrally formed. In one possible design, the container base may be made of a non-magnetically conductive material so as to save processing costs, thereby enabling a wider variety of material selection and processing modes for the container base.

Further, the container base body can be magnetic conductive metal or non-magnetic conductive metal, and because the metal can ensure the heat conduction performance of the container base body, the processing effect is ensured, and the metal is healthier and more liked by users. However, in order to reduce the processing cost, the container base is generally prepared from aluminum-silicon alloy or aluminum-copper alloy, that is, the container base is generally an aluminum-silicon alloy base or an aluminum-copper alloy base.

Further, the container base body and the magnetic conductive member are integrally formed by a mold, for example, when the container base body is formed, the magnetic conductive member is added to the bottom of a cavity of the mold, and then the container base body is formed by casting through the mold, so that the magnetic conductive member and the container base body can be integrally formed. The magnetic conduction piece and the container base body can be integrally formed in the mode, and the process is simple in processing, low in cost and easy to operate and realize. On the basis of the parts formed by casting, the connection between the container base body and the magnetic conduction piece is more reliable, so that the magnetic conduction piece is not easy to fall off.

Further, the container base body and the magnetic conductive piece are integrally prepared and formed through a metal casting process. That is, the container base and the magnetic conductive member are both made of metal, and are cast into an integral structure by the metal. Specifically, before the molten liquid of the container matrix is placed in the cavity of the die, the magnetic conduction piece can be placed at the bottom of the cavity, then the molten liquid for preparing the container matrix is filled into the cavity, and then the solidification molding is carried out, so that the container matrix with the magnetic conduction piece at the bottom can be formed after the molten liquid is solidified, the preparation of the container is completed, and the container matrix and the magnetic conduction piece are integrally prepared and molded.

Specifically, the container base body and the magnetic conductive piece can be integrally prepared and formed through die casting, liquid forging or die casting liquid forging composite technology, so that the processing difficulty of the container base body can be reduced, and the processing efficiency of the container base body can be improved.

Furthermore, the magnetic conduction piece has magnetic conduction performance, so that the container provided by the utility model can be applied to IH heating, each part of the container can conduct heat uniformly, the efficiency and the heating effect of IH heating are improved, and meanwhile, the corrosion resistance and the wear resistance of the container are also improved, and the service life of the container is further prolonged. Further, after the magnetic conductive piece and the container body are integrally formed, the container after demolding is subjected to corrosion and wear resistant treatment, so that the container has corrosion resistance and wear resistance.

In addition, the container in the technical scheme provided by the utility model can also have the following additional technical characteristics:

in the above technical solution, further, the first positioning structure is a first protrusion or a first groove; in the case that the first positioning structure is a first protrusion, a width of an end of the first protrusion away from the container base is smaller than a width of an end of the first protrusion close to the container base; under the condition that the first positioning structure is a first groove, the width of one end of the first groove far away from the container base body is larger than the width of one end of the first groove close to the container base body.

In this embodiment, the first positioning structure may be specifically a first protrusion or a first groove. Preferably, the first positioning structure is a first groove. The first groove has a structure with a large bottom and a small upper edge, so that the container matrix and the magnetic conductive piece can be conveniently cast and molded integrally and then subjected to subsequent demolding, damage of products in demolding can be avoided, and demolding efficiency and demolding qualification rate are improved.

Further, a ratio between a height of the first projection or the first groove and a width of an end of the first projection or the first groove away from the container base is 0.5 or more and 1.5 or less. According to the scheme, the width ratio of the upper end and the lower end of the first bulge or the first groove is limited, so that demolding of the part can be ensured, the positioning matching area between the magnetic conduction piece and the cavity can be ensured, and the situation that the positioning of the magnetic conduction piece and the cavity is not firm is avoided.

In the above technical solution, the second positioning structure is one of the second protrusion and the second groove, and the third positioning structure is the other of the second protrusion and the second groove.

Further, the width of the second projection and the second recess away from the open end of the container base is greater than the width of the second projection and the second recess toward the open end of the container base. Further, a ratio between a height of the second projection and the second groove and a width of the second projection and the second groove away from the open end of the container base is 0.5 or more and 1.5 or less.

Further, when the first positioning structure is the first protrusion, the second positioning structure is the second groove, and the first protrusion, the second groove and the magnetic conduction piece are formed by deforming towards the direction of the container base body. That is, the wall of the magnetic conductive member is deformed in the direction of the container base, so that a first protrusion is formed on the inner side of the magnetic conductive member, and a second groove is formed on the outer side of the magnetic conductive member. That is, the first positioning structure and the second positioning structure are formed by deformation of the magnetic conductive member at the same time, and at this time, the width ratio of the upper end and the lower end of the first protrusion and the first groove is substantially identical to the width ratio of the second protrusion and the second groove.

Further, the concave-convex structures on the inner side and the outer side of the magnetic conductive member are formed by stamping.

Further, a gap is arranged between the first positioning structure and the fourth positioning structure on the cavity, and when the first positioning structure and the fourth positioning structure are matched with each other through the first bulge and the fourth groove, the inner diameters of the first bulge and the fourth groove are slightly larger than the outer diameter of the first bulge of the die, so that the die is more convenient to demould. And the concave-convex structure of the first positioning structure and the concave-convex structure of the fourth positioning structure are in complete one-to-one correspondence.

Furthermore, the magnetic conduction piece comprises a magnetic conduction bottom wall matched with the bottom of the container base body, and the second positioning structure is arranged on the magnetic conduction bottom wall, namely, the magnetic conduction piece and the container base body are in limit connection through the bottom structure. And the bottom of the container matrix is a main heating piece, and the existence of the magnetic conduction bottom can meet the normal requirement of heating the bottom of the container.

In the technical scheme, the magnetic conduction piece comprises a magnetic conduction side wall matched with the side wall of the container base body, and a bending edge bending into the container base body is arranged at one end of the magnetic conduction side wall, which is close to the opening end of the container base body; the bending edge is coated on the opening end of the container base body and extends to be attached to the inner side wall of the container base body, or is embedded into the side wall of the container base body.

In this technical scheme, set up on the open end of magnetic conduction lateral wall at the limit of buckling, its one end is connected with the top of magnetic conduction lateral wall, and under the condition of the one end of the limit of buckling and the outer wall surface parallel and level of magnetic conduction lateral wall: the open end of the container base body can be wrapped through the bent edge, so that the magnetic conduction piece can completely wrap the container base body, the container base body and the magnetic conduction piece can be connected more tightly, and the magnetic conduction piece is prevented from falling off. Under the condition that the bending edge is embedded in the side wall of the container base body, the connection strength between the magnetic conduction piece and the container base body is improved, and the situation that the magnetic conduction piece is separated from the container base body is avoided.

In the above technical scheme, before the magnetic conduction piece is formed with the container base body, the magnetic conduction piece encloses into an accommodating cavity which is matched with the container base body and is provided with an opening at one end, a turned edge which is bent towards the accommodating cavity is arranged on one side of the magnetic conduction piece, which is close to the opening of the accommodating cavity, and when the magnetic conduction piece and the container base body are integrally formed through a die, the turned edge is extruded by an inner die of the die, so that the turned edge is formed by bending towards the accommodating cavity. Namely, the bent edge is formed by extrusion deformation through external force in the product casting process, so that the inlet and outlet of the inner die of the die are facilitated, the inner die can be fully contacted with the bent edge of the magnetic conductive piece, and the phenomenon that the formed container substrate cannot be wrapped by the bent edge is avoided.

Further, the height of the bending edge of the axis of the container base body is 3mm or more. The height should not be too large, otherwise the bending difficulty is increased, and too small, otherwise the reliable positioning between the magnetic conductive piece and the container base body can not be realized.

Further, the number of the bending edges is plural, and the plural bending edges are arranged at equal intervals along the circumferential direction of the container base body. The positioning effect can be ensured by realizing multiple positioning through the multiple bent edges, and the multiple bent edges are arranged at intervals, so that the integral bending difficulty of the bent edges can be reduced. Of course, the bending edge can also be a circle of annular structure, so that the positioning effect can be ensured, and the bending difficulty of the bending edge is increased. Further, the plurality of bending edges are uniformly distributed on the container base body, the elasticity of the uniformly distributed bending edges ensures that gaps between the magnetic conduction sheets and the inner mold are consistent, and meanwhile, the contact force between the magnetic conduction sheets and the inner wall of the outer mold also ensures that the magnetic conduction sheets are tightly attached to the inner wall of the outer mold.

Further, the length of the straightened bent edge is H1 (the dimension is equal to the width of the bent edge when extending horizontally inward and transversely before being bent, that is, the width of the turned edge is equal to the transverse width of the turned edge), the transverse width of the bent edge (that is, the width of the container base in the radial direction) is H2 (the dimension is equal to the cavity gap formed between the inner die and the outer die when the product is cast), and the ratio of H1 to H2 is 1.5 or more and 3 or less. Wherein the mold comprises an inner mold and an outer mold when the container is formed by the mold. In preparation, the length of the bent edge is longer than the cavity gap between the inner die and the outer die, so that the inner die can act on the bent edge during die assembly, and the bent edge is formed by bending the inner die. The ratio of the two is not too large, and the optimal ratio of the length of the bent edge to the cavity gap is 1.5-3, because the excessive ratio can influence the filling effect of molten metal in the area during die casting. Too small a ratio may result in an inability to effectively bond the two.

In the above-described solution, the magnetically permeable member surrounds at least part of the outer surface of the container base. That is, the magnetic conduction piece not only comprises a magnetic conduction side wall but also comprises a magnetic conduction bottom wall, and the arrangement can ensure the connection reliability of the magnetic conduction piece and the container base body after molding, so that the magnetic conduction piece is prevented from falling off.

In the above-described embodiments, the magnetic conductive member is preferably a magnetic conductive metal member such as at least one of an iron sheet, an alloy sheet and a ferrite stainless sheet. Of course, the magnetic conduction piece can also be a non-metal part with magnetic conduction effect.

In the above technical solution, the container further comprises a non-stick coating layer located on the inner wall of the container base. The non-stick properties of the container are ensured by the provision of a non-stick coating. Specifically, the non-stick coating may be any one of a PTFE (Polytetrafluoroethylene) coating, a PFA (Polytetrafluoroethylene) coating, a PEEK (Polyetheretherketone) coating, and a ceramic coating.

In the technical scheme, the diameter of the holes in the container matrix is less than or equal to 1.5mm, and the porosity of the preset holes in the container matrix is more than 0 and less than or equal to 0.5%. Specifically, holes having a diameter of less than 0.25mm are not counted when the holes are calculated. After the container matrix is formed, the number of holes is not more than 4 in a unit area of 10cm multiplied by 10cm, and the distance between two holes is not less than 5cm. The diameter of the preset holes is more than 0.25mm and less than or equal to 1.5mm, and the distance between each preset hole and the outer surface of the container matrix is more than or equal to 2 times of the diameter of each preset hole. The container matrix has less bubbles, compact parts inside and high product yield.

In the technical scheme, the thickness of the container matrix is more than or equal to 1mm and less than or equal to 5mm. The thickness of the container base should not be too great, otherwise it is not well processed and would result in poorer heat conducting effects. At the same time, the thickness is not too thin, otherwise the heat storage capacity is seriously insufficient. The thickness is set to be 1mm-5mm, so that the thickness is moderate, the convenience of processing is considered, and the heat accumulating capacity and the heat conducting capacity can be monitored.

In the step of filling the molten metal into the cavity of the mold at a preset filling speed, the filling speed of the molten metal is 0 or more and 0.8m/s or less. The filling time can be controlled to be more than or equal to 0.02s and less than or equal to 0.05s by controlling the filling speed. Avoiding the discharge of a large amount of bubbles caused by too fast part forming due to too fast filling of molten metal.

When the metal melt is filled into the cavity of the die, the filling speed needs to be dynamically adjusted to control the filling time according to actual conditions, so that the filling process of the metal melt is fully controlled, the situation that the part cannot be solidified according to requirements due to too high or too low filling speed is avoided, the quality of the molded part can be ensured, air bubbles in the part can be reduced, and the inside of the part is more compact.

Further, the container further comprises: and the protective layer is arranged on the outer wall surface of the container, such as a rust-proof layer, so that the outer surface of the container can be protected to avoid corrosion of the container matrix. The protective layer is arranged on the outermost surface of the container, if the container base body is covered with the magnetic conductive piece, the protective layer is arranged outside the magnetic conductive piece, and if the container base body is not covered with the magnetic conductive piece, the protective layer is arranged on the container base body.

Further, the magnetic conduction piece comprises a metal magnetic conduction piece, and the heat conduction coefficient of the metal magnetic conduction piece is better, so that the heat conduction effect of the product can be ensured. And the strength of the metal magnetic conduction piece is higher, and the metal magnetic conduction piece is not easy to damage. Of course, the magnetic conductive member may be made of other materials that can satisfy strength and thermal conductivity, such as an alloy member.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 shows a schematic structural view of a container according to an embodiment of the present utility model prior to demolding;

fig. 2 is a schematic view showing a state of a container according to another embodiment of the present utility model after the mold is closed while the container is prepared by the mold;

FIG. 3 is a schematic view showing a state of a container according to another embodiment of the present utility model before the mold is closed while the container is prepared by the mold;

FIG. 4 is a schematic view showing another state of a container according to another embodiment of the present utility model after the mold is closed while the container is being prepared by the mold;

FIG. 5 shows a schematic view of a container according to another embodiment of the present utility model in a further state after the mold is closed while the container is being prepared by the mold;

fig. 6 shows a schematic view of the microstructure of a container according to another embodiment of the utility model.

The correspondence between the reference numerals and the component names in fig. 1 to 6 is:

1 container, 12 container base, 122 second groove, 14 magnetic conductive piece, 142 second protrusion, 144 first groove, 146 bent edge, 148 turned edge, 2 inner mold, 3 outer mold, 32 first protrusion, 4 cavity.

Detailed Description

In order that the above-recited objects, features and advantages of the present utility model will be more clearly understood, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description. It should be noted that, without conflict, the embodiments of the present utility model and features in the embodiments may be combined with each other.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, however, the present utility model may be practiced in other ways than those described herein, and therefore the scope of the present utility model is not limited to the specific embodiments disclosed below.

The present utility model will be described below with reference to fig. 1 to 6 to provide a container 1.

As shown in fig. 1, an embodiment of a first aspect of the present utility model provides a container 1 comprising a container base 12 and a magnetically permeable member 14. The magnetic conduction piece 14 is positioned on the outer surface of the container base body 12; at least one first positioning structure is arranged on the surface of the magnetic conduction piece 14 away from the container base body 12; at least one second positioning structure is arranged on the magnetic conduction piece 14, and at least one third positioning structure matched with the second positioning structure in a positioning way is arranged on the container base body 12.

The container 1 provided according to the embodiment of the present utility model includes not only the container base 12 but also the magnetic conductive member 14, and since the magnetic conductive member 14 has magnetic conductive properties, it can ensure that such container 1 can be used for electromagnetic heating regardless of the material of the container base 12. At least one first positioning structure is provided on the face of the magnetic conductive member 14 remote from the container base 12. The first positioning structure is used for positioning the magnetic conductive member 14 in the cavity 4 of the mold. When the container base body 12 and the magnetic conduction piece 14 are prepared and molded through the mold, an adaptive positioning structure can be correspondingly arranged on the inner wall of the cavity 4, so that the magnetic conduction piece 14 can be positioned in the cavity 4 of the mold through the first positioning structure of the magnetic conduction piece 14 and the positioning structure on the inner wall of the cavity 4, the precision of the container base body 12 after being processed and molded can be ensured, and the magnetic conduction piece 14 is prevented from being deviated in the cavity 4 to influence the normal preparation of the container base body 12. At least one second positioning structure is arranged on the magnetic conduction piece 14, and at least one third positioning structure matched with the second positioning structure in a positioning way is arranged on the container base body 12. By the arrangement, limit fit is formed between the magnetic conduction piece 14 and the container base body 12, so that the container base body 12 and the magnetic conduction piece 14 can be connected more reliably, and the magnetic conduction piece 14 can be prevented from falling off.

In a specific application, the container base 12 and the magnetic conductive member 14 are integrally formed, that is, when the container base 12 is manufactured, the magnetic conductive member 14 is manufactured on the outer surface of the container base 12, instead of manufacturing the container base 12 first, and then attaching the magnetic conductive member 14 additionally. Further, the container base 12 and the magnetic conductive member 14 are integrally formed by a mold. Further, the container base 12 is a metal piece, and the container base 12 and the magnetic conductive piece 14 are integrally formed by a metal casting process. For example, when the container base 12 is formed, as shown in fig. 2 and 3, the magnetic conductive member 14 is added at the bottom of the cavity 4 of the mold, so that the magnetic conductive member 14 and the container base 12 can be integrally formed. In one possible design, the container base 12 may be made of a non-magnetically conductive material to save processing costs, thereby enabling a greater variety of material and processing options for the container base 12.

Further, the container base 12 may be magnetically conductive metal or non-magnetically conductive metal, because the metal can ensure the heat conductive property of the container base 12, ensure the processing effect, and the metal is healthier and more liked by users. However, in order to reduce the processing cost, the container base 12 is generally made of aluminum-silicon alloy or aluminum-copper alloy, that is, the container base 12 is generally an aluminum-silicon alloy base or aluminum-copper alloy base.

Further, as shown in fig. 2 and 3, the first positioning structure is a first protrusion 32 or a first groove 144, and in the case where the first positioning structure is the first protrusion 32, the width of the end of the first protrusion 32 away from the container base 12 is smaller than the width of the end of the first protrusion 32 near the container base 12; in the case where the first positioning structure is the first groove 144, the width of the end of the first groove 144 remote from the container base 12 is greater than the width of the end of the first groove 144 near the container base 12.

In this embodiment, the first positioning structure may be embodied as the first protrusion 32 or the first groove 144. Most preferably, the first positioning structure is a first groove 144. The first groove 144 has a structure with a large bottom and a small upper edge, so that the container base body 12 and the magnetic conductive piece 14 can be conveniently cast and molded integrally and then subjected to subsequent demolding, damage of products in demolding can be avoided, and demolding efficiency and demolding qualification rate are improved.

Further, the ratio between the height of the first protrusion 32 or the first groove 144 and the width of the end of the first protrusion 32 or the first groove 144 remote from the container base 12 is 0.5 or more and 1.5 or less. In this way, the width ratio of the upper end and the lower end of the first protrusion 32 or the first groove 144 is limited, so that demolding of the part can be ensured, and the positioning matching area between the magnetic conductive piece 14 and the cavity 4 can be ensured, so that the positioning of the magnetic conductive piece and the cavity 4 is avoided.

In the above embodiment, as shown in fig. 1 to 3, the second positioning structure is one of the second protrusion 142 and the second groove 122, and the third positioning structure is the other of the second protrusion 142 and the second groove 122.

Further, as shown in fig. 1, the width of the second projection 142 and the second recess 122 away from the open end of the container base 12 is greater than the width of the second projection 142 and the second recess 122 near the open end of the container base 12. I.e., the second protrusions 142 and the second grooves 122 have a structure with a narrow upper portion and a wide lower portion.

Further, the ratio between the height of the second projection 142 and the second groove 122 and the width of the second projection 142 and the second groove 122 away from the open end of the container base 12 is 0.5 or more and 1.5 or less.

Further, as shown in fig. 1 and 2, when the first positioning structure is the first protrusion 32, the second positioning structure is the second recess 122, and the first protrusion 32, the second recess 122, and the magnetic conductive member 14 are deformed in the direction of the container base 12. That is, the wall of the magnetic conductive member 14 is deformed in the direction of the container base 12, thereby forming the first protrusion 32 on the inner side of the magnetic conductive member 14 and the second groove 122 on the outer side of the magnetic conductive member 14. That is, the first positioning structure and the second positioning structure are formed by deforming the magnetic conductive member 14 at the same time, and at this time, the width ratio of the upper and lower ends of the first protrusion 32 and the first groove 144 and the width ratio of the second protrusion 142 and the second groove 122 are substantially identical.

Further, the concave-convex structure of the inner and outer sides of the magnetic conductive member 14 is formed by punching.

Further, a gap is arranged between the first positioning structure and the fourth positioning structure on the cavity 4, and when the first positioning structure and the fourth positioning structure are matched through the first protrusion 32 and the fourth groove, the inner diameters of the first protrusion 32 and the fourth groove are slightly larger than the outer diameter of the first protrusion 32 of the die, so that the die is more convenient to demould. And the concave-convex structure of the first positioning structure and the concave-convex structure of the fourth positioning structure are in complete one-to-one correspondence.

Still further, as shown in fig. 1, the magnetic conductive member 14 includes a magnetic conductive bottom wall adapted to the bottom of the container base 12, and the second positioning structure is disposed on the magnetic conductive bottom wall, that is, the magnetic conductive member 14 and the container base 12 are in spacing connection through the bottom structure. And the bottom of the container base body 12 is a main heating piece, and the existence of the magnetic conduction bottom can meet the normal requirement of heating the bottom of the container 1.

In the above embodiment, as shown in fig. 1, 2, 4 and 5, the magnetic conductive member 14 includes a magnetic conductive side wall adapted to the side wall of the container base 12, and a bending edge 146 is provided on one end of the magnetic conductive side wall near the open end of the container base 12 and bent into the container base 12; wherein the folded edge 146 wraps around the open end of the container base 12 and extends to fit the inner sidewall of the container base 12. The bent edge 146 is disposed on the open end of the magnetic conductive sidewall, one end of the bent edge 146 is connected to the top of the magnetic conductive sidewall, and one end of the bent edge 146 is flush with the outer wall surface of the magnetic conductive sidewall, or the bent edge 146 is embedded in the sidewall of the container base 12.

In this embodiment, the open end of the container base 12 is wrapped by the bent edge 146, so that the magnetic conductive member 14 can completely wrap the container base 12 inside, thereby making the connection between the container base 12 and the magnetic conductive member 14 tighter and avoiding the magnetic conductive member 14 from falling off. In the case that the bending edge 146 is embedded in the side wall of the container base 12, the connection strength between the magnetic conductive member 14 and the container base 12 is improved, and the magnetic conductive member 14 is prevented from being separated from the container base 12.

In the above embodiment, as shown in fig. 3, before the magnetic conductive member 14 is formed with the container base 12, the magnetic conductive member 14 encloses a receiving cavity that is adapted to the container base 12 and has an opening at one end, a flange 148 that is bent into the receiving cavity is disposed on a side of the magnetic conductive member 14 near the opening of the receiving cavity, and when the magnetic conductive member 14 and the container base 12 are integrally formed by a mold, the flange 148 is extruded by the inner mold 2 of the mold, so that the flange 148 is bent into the receiving cavity. That is, the bending edge 146 is formed by extrusion deformation by external force in the product casting process, so that the inlet and outlet of the inner die 2 of the die are facilitated, the inner die 2 can be fully contacted with the bending edge 146 of the magnetic conductive piece 14, and the phenomenon that the formed container substrate 12 cannot be wrapped by the bending edge 146 is avoided.

Further, as shown in fig. 3, the width H1 of the burring 148 is 3mm or more. Such a height should not be too great, otherwise the difficulty of bending would be increased, nor too small, otherwise reliable positioning between the magnetically permeable member 14 and the container base 12 would not be achieved.

Further, the number of the bending edges 146 is plural, and the bending edges 146 are arranged at equal intervals along the circumferential direction of the container base 12. The positioning effect can be ensured by realizing multiple positioning through the multiple bent edges 146, and the multiple bent edges 146 are arranged at intervals, so that the integral bending difficulty of the bent edges 146 can be reduced. Of course, the bending edge 146 may also have a ring structure, so that the positioning effect can be ensured, i.e. the bending difficulty of the bending edge 146 is increased. Further, the plurality of bent edges 146 are uniformly distributed along the container base 12, the elasticity of the uniformly distributed bent edges 146 ensures that the gaps between the magnetic conductive sheets and the inner mold 2 are consistent, and meanwhile, the contact force between the magnetic conductive sheets and the inner wall of the outer mold 3 is also ensured to be tightly attached.

Further, as shown in fig. 3, the bent edge 146 has a length H1 (the dimension is equal to the width of the bent edge 146 when extending horizontally inward and laterally before bending, that is, the width of the flange 148), the bent edge 146 has a width H2 (the dimension is equal to the width of the cavity 4 gap formed between the inner and outer molds when the product is cast) and the ratio of H1 to H2 is 1.5 or more and 3 or less. Wherein the mould comprises an inner mould 2 and an outer mould 3 when the container 1 is manufactured and shaped by the mould. In preparation, the length of the bent edge 146 should be longer than the gap between the inner and outer molds 3 and 4, so that the inner mold 2 can only act on the bent edge 148 when the molds are closed, and thus the bent edge 146 is formed by bending. The ratio of the two is not too large, and the ratio of the length of the bending edge 146 to the gap of the cavity 4 is preferably 1.5-3, because the excessive ratio can affect the filling effect of molten metal in the area during die casting. Too small a ratio may result in an inability to effectively bond the two.

In the above embodiment, the magnetically permeable member 14 surrounds at least a portion of the outer surface of the container base 12. That is, the magnetic conductive member 14 not only includes a magnetic conductive side wall but also includes a magnetic conductive bottom wall, and the arrangement can ensure the connection reliability of the magnetic conductive member 14 and the container base 12 after molding, thereby avoiding the falling of the magnetic conductive member 14.

Further, the magnetic permeable member 14 surrounds the entire bottom and side walls of the container base 12 in a region of at least 1/3 height.

In the above embodiment, the magnetic conductive member 14 is preferably a magnetic conductive metal member such as at least one of an iron sheet, an alloy sheet and a ferrite stainless sheet. Of course, the magnetic conductive member 14 may be a non-metallic member having a magnetic conductive effect.

In the above embodiment, the container 1 further comprises a non-stick coating on the inner wall of the container base 12. The non-stick properties of the container 1 are ensured by the provision of a non-stick coating. Specifically, the non-stick coating may be any one of a PTFE coating, a PFA coating, a PEEK coating, and a ceramic coating.

In the above embodiment, the diameter of the hole in the container base 12 is 1.5mm or less, and the porosity of the preset hole in the container base 12 is 0 or more and 0.5% or less. Specifically, holes having a diameter of less than 0.25mm are not counted when the holes are calculated. After the container base 12 is molded, the number of holes is not more than 4 in a unit area of 10cm x 10cm, and the distance between two holes is not less than 5cm. The diameter of the preset holes is greater than 0.25mm and less than or equal to 1.5mm, and the distance between each preset hole and the outer surface of the container base 12 is greater than or equal to 2 times the diameter of each preset hole. The container substrate 12 has less bubbles, the inside of the part is compact, and the qualification rate of the product is ensured.

In the above embodiment, the thickness of the container base 12 is 1mm or more and 5mm or less. The thickness of the container base 12 should not be too great, otherwise it is not well-worked, and it may result in a poorer heat conducting effect. At the same time, the thickness is not too thin, otherwise the heat storage capacity is seriously insufficient. The thickness is set to be 1mm-5mm, so that the thickness is moderate, the convenience of processing is considered, and the heat accumulating capacity and the heat conducting capacity can be monitored.

Further, the container 1 further includes a protective layer (not shown) provided on the outer wall surface of the container 1, such as a rust-proof layer, so that the outer surface of the container 1 can be protected from corrosion of the container base 12. Here, the protective layer is disposed on the outermost surface of the container 1, and is disposed outside the magnetic conductive member 14 if the container base 12 is covered with the magnetic conductive member 14, and is disposed on the container base 12 if the container base 12 is not covered with the magnetic conductive member 14.

Further, the magnetic conductive member 14 includes a metal magnetic conductive member 14, so that the heat conduction effect of the product can be ensured because the heat conduction coefficient of the metal magnetic conductive member 14 is better. And the strength of the metal magnetic conduction piece 14 is higher, so that the metal magnetic conduction piece is not easy to damage. Of course, the magnetic conductive member 14 may be made of other materials that can satisfy strength and thermal conductivity, such as an alloy member.

The container 1 provided by the present utility model will be further described with reference to a cooking vessel as an example. Specifically:

the utility model belongs to the technical field of cooking utensil production and manufacturing, and particularly relates to a structure with reliable connection between a bottom-covered magnetic conductive sheet and an aluminum pan bottom. Specifically, the cooking vessel includes a pot body (typically an aluminum pot, as the container base 12) and a bottom-covered magnetic sheet (as the magnetic sheet). Wherein, the magnetic conduction piece molded lines are consistent with the corresponding position radian of the bottom of the pot body, the magnetic conduction piece can be closely attached to the bottom of the pot body (such as an aluminum pot), and a plurality of concave holes are formed in the bottom of the magnetic conduction piece in a stamping mode. The magnetic conducting member 14 surrounds the entire bottom and side walls of the pot by at least 1/3 of the height.

The bottom of the die is provided with a plurality of positioning bosses, the positioning bosses are in one-to-one correspondence with concave holes in the magnetic conductive sheet, and the inner diameter of the concave holes is slightly larger than the outer diameter of the positioning bosses of the die.

Specifically, in order to achieve a better demolding effect, the positioning boss is narrow at the upper part and wide at the lower part, and the height-diameter ratio of the boss height to the maximum diameter of the lower part is 0.5-1.5, wherein the positioning effect can be influenced by the fact that the height-diameter ratio is too small, and difficulty is brought to concave hole machining and later demolding because of the fact that the height-diameter ratio is too large.

Wherein, the top edge of the magnetic conductive sheet is processed with a concave-convex structure, more than two convex areas evenly distributed along the circumference are reserved, the convex parts are pre-folded at right angles to the central axis direction, the height H2 of the bending edge 146 at the edge of the magnetic conductive sheet is at least more than 3mm and is more than the design gap H1 of the inner die 3 at the position, and the ratio of the height of the bending edge 146 to the design gap of the cavity 4 is 1.5-3.

The number of the bent edges 146 is more than 2 and the bent edges 146 are uniformly distributed along the circumference, the proportion of the bent edges 146 accounting for the whole circumference is 1/5-1/2, the bent edges 146 cannot exert the proper positioning effect when the die is assembled, and the gap of the die cavity 4 can be shielded when the proportion of the bent edges 146 is too large, so that the aluminum liquid filling during the die casting-liquid forging composite process molding is affected.

Specifically, the bending edge 146 of the magnetic conductive sheet after being filled with the aluminum liquid and the boss at the bottom of the magnetic conductive sheet are used as positioning structures to be tightly combined with the container base body 12 after solidification and molding, so that the magnetic conductive sheet is prevented from shifting during use (as shown in fig. 4).

The magnetic conductive sheet and the container 1 after being integrally molded and covered by die casting and liquid forging are diffusion metallurgically bonded, the bonding area is compact and has no pore, and the two materials of the magnetic conductive sheet and the die casting aluminum are mutually embedded at the bonding position (shown in figure 6).

The magnetic conductive sheet is one or the combination of more than two of an iron sheet, an alloy steel sheet and a ferrite stainless steel sheet.

In the description of the present specification, the terms "connected," "mounted," "secured," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the terms in the present utility model will be understood by those of ordinary skill in the art, depending on the specific circumstances.

In the description of the present specification, the terms "one embodiment," "some embodiments," "particular embodiments," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (11)

1. A container, comprising:

a container base;

the magnetic conduction piece is positioned on the outer surface of the container base body;

at least one first positioning structure is arranged on the surface, away from the container base body, of the magnetic conduction piece;

the magnetic conduction piece is provided with at least one second positioning structure, and the container base body is provided with at least one third positioning structure matched with the second positioning structure in a positioning way.

2. The container according to claim 1, wherein the container comprises a lid,

the first positioning structure is a first protrusion or a first groove;

in the case that the first positioning structure is a first protrusion, a width of one end of the first protrusion, which is far away from the container base body, is smaller than a width of one end of the first protrusion, which is close to the container base body;

and under the condition that the first positioning structure is a first groove, the width of one end of the first groove far away from the container base body is larger than the width of one end of the first groove close to the container base body.

3. The container according to claim 2, wherein,

the ratio between the height of the first protrusion or the first groove and the width of the first protrusion or the first groove at the end far away from the container base body is greater than or equal to 0.5 and less than or equal to 1.5.

4. The container according to claim 1, wherein the container comprises a lid,

the second positioning structure is one of a second protrusion and a second groove, and the third positioning structure is the other of the second protrusion and the second groove.

5. The container according to claim 4, wherein the container comprises a lid,

the width of the second protrusion and the second groove away from the open end of the container base is greater than the width of the second protrusion and the second groove near the open end of the container base.

6. The container according to claim 5, wherein the container comprises a lid,

the ratio between the height of the second protrusion and the second groove and the width of the second protrusion and the second groove away from the open end of the container base is 0.5 or more and 1.5 or less.

7. The container according to claim 1, wherein the container comprises a lid,

the magnetic conduction piece comprises a magnetic conduction bottom wall matched with the bottom of the container base body, and the second positioning structure is arranged on the magnetic conduction bottom wall.

8. The container according to any one of claim 1 to 7, wherein,

the magnetic conduction piece comprises a magnetic conduction side wall matched with the side wall of the container base body, and a bending edge bending into the container base body is arranged at one end of the magnetic conduction side wall, which is close to the opening end of the container base body;

the bending edge is coated on the opening end of the container base body and extends to be attached to the inner side wall of the container base body, or is embedded into the side wall of the container base body.

9. The container according to claim 8, wherein the container comprises a lid,

the height of the bending edge along the axis of the container matrix is more than or equal to 3mm; and/or

The number of the bending edges is multiple, and the bending edges are arranged at equal intervals along the circumferential direction of the container base body; and/or

The length of the bent edge after straightening is H1, the transverse width of the bent edge of the container base body is H2, and the ratio of H1 to H2 is more than or equal to 1.5 and less than or equal to 3.

10. The container according to any one of claim 1 to 7, wherein,

the magnetic conductive member surrounds at least a portion of an outer surface of the container base; and/or

The magnetic conduction piece comprises at least one of an iron sheet, an alloy steel sheet and a ferrite stainless steel sheet; and/or

The container also includes a non-stick coating on the inner wall of the container base.

11. The container according to any one of claim 1 to 7, wherein,

the diameter of the holes in the container matrix is less than or equal to 1.5mm, the porosity of the preset holes in the container matrix is more than 0 and less than or equal to 0.5%, the diameter of the preset holes is more than 0.25mm and less than or equal to 1.5mm, and/or

The distance between each preset hole and the outer surface of the container matrix is more than or equal to 2 times of the diameter of each preset hole.