CN212234102U - Composite bottom pot - Google Patents
Composite bottom pot Download PDFInfo
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- CN212234102U CN212234102U CN202021150723.7U CN202021150723U CN212234102U CN 212234102 U CN212234102 U CN 212234102U CN 202021150723 U CN202021150723 U CN 202021150723U CN 212234102 U CN212234102 U CN 212234102U
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Abstract
The utility model relates to a composite bottom pot, which comprises an inner pot body, an outer pot bottom and a heat conducting plate; the bottom of the inner pot body is connected with the bottom of the outer pot body through a heat conducting plate. The bottom of the inner pan body is attached to the heat conducting plate on the outer pan bottom; the upper edge of the outer pan bottom is fixed on the pan body of the inner pan body by welding. And (3) installing a solid heat-conducting plate with the volume of a cavity between the outer pot bottom and the inner pot body being 70-80%, and reserving a space for volume expansion of the liquid low-melting-point alloy after the lower solid low-melting-point metal is heated and melted. The low-melting-point alloy of the heat conducting plate carries out solid-liquid phase change flow heat transfer in a cavity between the outer pot bottom and the inner pot body. The cavity reduces the flow resistance of the liquid low-melting-point alloy, and the heat energy carried by the liquid low-melting-point alloy is transferred to the inner pot body, so that the heat energy uniformity on the inner pot body is improved, and the phenomenon that the non-stick coating is damaged due to overheating on the pot body in the central position of the inner pot body is avoided. The composite bottom pot has simple structure, simple manufacturing process and low manufacturing cost.
Description
Technical Field
The utility model relates to a pot, in particular to a pot with a composite bottom.
Background
The composite bottom pot mostly adopts a multilayer composite bottom pot which is composed of an inner pot body made of a stainless steel plate, an intermediate layer made of metal plates with high heat conductivity coefficient such as an aluminum plate layer or a copper plate, and an outer pot bottom made of stainless steel or steel. Due to the fact that the temperature difference of all parts of the outer pot bottom is large due to the heating factors of the pot bottom, the heat conduction range of metal plates such as aluminum plate layers or copper plates of solid metal is local, and the high temperature in the middle of the pot bottom is gradually reduced towards the low temperature of the periphery of the pot bottom. The temperature difference on the pot body at the bottom of the pot is large due to slow heat transfer, and the non-stick coating on the pot body at the central position of the bottom of the pot is damaged due to overheating; the temperature difference is large, so that the food materials are different in heating degree and difficult to ensure the quality, and therefore, the heating efficiency needs to be improved and the energy consumption needs to be reduced through the design and the improvement of pot materials.
The problem of cracking or welding failure occurs between the bottom of the multi-layer pot body and metal plates with high heat conductivity coefficient, such as aluminum plate layers or copper plates, due to creeping caused by different thermal expansion coefficients.
SUMMERY OF THE UTILITY MODEL
The utility model provides a pot with a composite bottom to solve the problems existing in the pot on the market.
In order to reach the purpose, the utility model discloses a following technical scheme realizes: a composite bottom pot comprises an inner pot body, an outer pot bottom and a heat conducting plate.
Conventional other accessories such as a handle, a pot cover and the like are assembled on the pot body of the composite bottom pot, and are not introduced in the attached drawings of the specification of the application.
The pot body manufacturing materials of the inner pot body and the outer pot bottom are metal plates; the thickness of the pot body at the bottom of the outer pot is 0.1-2 mm, the thickness of the pot body at the bottom of the inner pot is 0.1-2 mm, and the thickness of the pot body is set according to requirements.
The pot bottom of the pot with the composite bottom is flat or round. The caliber and the height of the composite bottom pot are set according to the actual type of the requirement. The metal plate is pressed into an outer pot bottom and an inner pot body through a die, and the diameter specification and the shape of the outer pot bottom and the inner pot body are correspondingly matched. The technology of stamping the pot body is the existing mature technology, and the detailed description of the application is omitted.
The inner pot body and the outer pot bottom of the flat-bottom composite bottom pot are stamped with reinforcing ribs, the reinforcing ribs and the outer pot bottom are integrated, and the reinforcing ribs and the inner pot body are integrated.
The corresponding reinforcing ribs on the inner pot body and the outer pot bottom are annular; the corresponding reinforcing ribs on the inner pot body and the outer pot bottom are arranged longitudinally from the center of the pot bottom to the outside, and the longitudinal arrangement is convenient for the flowing heat transfer of the liquid low-melting-point alloy.
The corresponding reinforcing ribs on the inner pot body and the outer pot bottom are mutually staggered, the mutually staggered reinforcing ribs enhance the leveling strength of the pot body surfaces of the inner pot body and the outer pot bottom, and the bending resistance of the flatness of the pot body surfaces of the inner pot body and the outer pot bottom is improved.
The cavity between the inner pot body and the outer pot bottom reduces the flow resistance of the liquid low-melting-point alloy, reduces the stagnation effect of the liquid low-melting-point alloy in the cavity in the flowing process, and is favorable for the flow heat transfer of the liquid low-melting-point alloy in the cavity.
The height of the reinforcing rib is 1-4 mm, and the width of the reinforcing rib is 2-8 mm; the length of the reinforcing ribs is 2-38 mm, or the appropriate length is set according to the size requirement of the inner pot body and the outer pot bottom which are staggered with each other.
The heat conducting plate is arranged in a cavity between the outer pot bottom and the inner pot body, and the installation volume of the heat conducting plate is 70-80% of the volume of the cavity between the outer pot bottom and the inner pot body.
The heat conducting plate is made of low-melting-point alloy, and the thickness of the heat conducting plate is 2-10 mm.
The low-melting-point alloy is metal with a melting point below 180 ℃ and alloy thereof. The low-melting-point alloy is generally composed of low-melting-point metals such as Sn, Pb, In, solder, and tin.
The heat conducting plate conducts heat in a solid-liquid phase change manner in a cavity between the outer pot bottom and the inner pot body.
The utility model discloses a manufacturing method of pot with composite bottom, including following steps:
step one, a heat conducting plate is manufactured into the heat conducting plate suitable for the size of the inner surface of the outer pot bottom through die stamping.
And step two, placing the heat conducting plate on the inner surface of the manufactured outer pot bottom. The lower surface of the heat conducting plate is attached to the inner surface of the outer pot bottom.
And step three, the bottom of the inner pot body is connected with the bottom of the outer pot body through a heat conducting plate. The bottom of the inner pot body is not connected with the outer pot bottom, and the space without connection between the bottom of the inner pot body and the outer pot bottom is a cavity; the manufactured inner pot body is placed on the outer pot bottom, and the bottom of the inner pot body is attached to the heat conducting plate on the outer pot bottom; the upper edge of the outer pan bottom is fixed on the pan body of the inner pan body by welding.
And step four, processing the surfaces of the outer pot bottom and the inner pot body. The outer pot body and the inner pot body are cleaned, polished and treated.
And step five, assembling the product. The pot body of the composite bottom pot is provided with an upper handle and an upper pot cover.
And step six, checking. And packaging the qualified finished product of the pot to finish production.
The utility model discloses heat transfer method and the advantage of the solid-liquid phase transition of the heat-conducting plate of compound end pot:
1. the heat conducting plate is fixed between the outer pot bottom and the inner pot body, and the reinforcing ribs improve the plane bearing efficiency of the outer pot bottom and the inner pot body.
2. As is known, metals generally have the characteristics of expansion with heat and contraction with cold, and the volume of a liquid state of a metal block after being heated is 13-15% larger than that of the original solid. And (3) installing a solid heat-conducting plate with the volume of a cavity between the outer pot bottom and the inner pot body being 70-80%, and reserving a space for volume expansion of the liquid low-melting-point alloy after the lower solid low-melting-point metal is heated and melted. Therefore, the low-melting-point metal in the reserved expansion space can not generate pressure after being heated and melted, and the plane pressure-bearing efficiency of the outer pot bottom and the inner pot body is also reduced.
3. When the composite bottom pot works, the low-melting-point alloy of the heat conducting plate conducts solid-liquid phase change heat transfer in the cavity between the outer pot bottom and the inner pot body. After the composite bottom pot starts to work, when the outer pot bottom is heated by external heat sources such as liquefied gas, an induction cooker or carbon fire, the outer pot bottom is a heated end, heat energy on the outer pot bottom is conducted on the heat conducting plate, solid low-melting-point alloy of the heat conducting plate is changed into liquid low-melting-point alloy after being melted, the liquid low-melting-point alloy conducts heat in a flowing mode in a cavity between the outer pot bottom and the inner pot body, the liquid low-melting-point alloy improves the heat conduction speed of the heat energy, the heat energy carried by the liquid low-melting-point alloy is conducted to the inner pot body, the heat uniformity of the heat on the inner pot body is improved, the heat heated at the central position of the inner pot body is conducted and diffused rapidly, and the phenomenon that the non-stick coating is damaged due to overheating on.
4. The outer bottom of a boiler of compound end pot and the pot body bottom of the interior pot body of this application are because the solid-liquid phase of heat-conducting plate becomes when being heated, and the outer bottom of a boiler and the pot body bottom of the interior pot body when being heated are not fixed connection, and outer bottom of a boiler and the interior pot body can not take place to crack or the problem of desoldering because of the wriggling that the different thermal expansion coefficient of being heated of difference produced.
5. The cavity between the inner pot body and the outer pot bottom reduces the flow resistance of the liquid low-melting-point alloy, reduces the stagnation effect of the liquid low-melting-point alloy in the cavity in the flowing process, and is favorable for the flow heat transfer of the liquid low-melting-point alloy in the cavity.
6. When the composite bottom pot is manufactured and processed, the heat conducting plate applied by the cost is replaced by the metal plate with high heat conductivity coefficient, such as an aluminum plate layer or a copper plate layer of the original middle layer. Therefore, the production and manufacturing process of the composite bottom pot is the same as that of the composite pot on the market at present, the original production line does not need to be replaced, and the improvement of the manufacturing process is universal with the existing production technology; therefore, the composite bottom pot has the advantages of simple structure, simple manufacturing process and low manufacturing cost.
The utility model discloses compare with current compound pot and have following beneficial effect: a composite bottom pan comprises an inner pan body, an outer pan bottom and a heat conducting plate; and (3) installing a solid heat-conducting plate with the volume of a cavity between the outer pot bottom and the inner pot body being 70-80%, and reserving a space for volume expansion of the liquid low-melting-point alloy after the lower solid low-melting-point metal is heated and melted. The low-melting-point alloy of the heat conducting plate carries out solid-liquid phase change flow heat transfer in a cavity between the outer pot bottom and the inner pot body. The cavity reduces the flow resistance of the liquid low-melting-point alloy and the stagnation effect of the liquid low-melting-point alloy in the cavity in the flowing process; the heat energy carried by the liquid low-melting-point alloy is transferred to the inner pot body, so that the heat energy uniformity on the inner pot body is improved, and the phenomenon that the non-stick coating is damaged due to overheating on the pot body in the central position of the inner pot body is avoided. The composite bottom pot has simple structure, simple manufacturing process and low manufacturing cost.
Description of the drawings:
FIG. 1 is a schematic structural view of a composite-bottom pan of the flat bottom of the present invention;
figure 2 is a structural schematic diagram of the pot with composite bottom of the round bottom of the utility model.
In the figure: 1. the pot comprises an inner pot body, 2 a heat conducting plate, 3 an outer pot bottom, 4 a cavity, 5 and reinforcing ribs.
The specific implementation mode is as follows:
the present invention will be further described with reference to the accompanying drawings and examples.
Example 1:
as shown in figure 1, the composite bottom pot comprises an inner pot body 1, a heat conducting plate 2 and an outer pot bottom 3.
The inner pot body 1 and the outer pot bottom 3 are made of stainless steel plates; the thickness of the pot body of the outer pot bottom 3 is 1mm, and the thickness of the pot body of the inner pot body 1 is 0.5 mm.
The pot bottom of the pot with the composite bottom is flat. The diameter of the mouth of the pot with the composite bottom is 380mm, and the height is 280 mm. The metal plate is pressed into an outer pot bottom 3 and an inner pot body 1 through a die, and the diameter specification and the shape of the outer pot bottom 3 and the inner pot body 1 are correspondingly matched.
Two reinforcing ribs 5 are respectively stamped on the inner pot body 1 and the outer pot bottom 3 of the flat-bottom composite bottom pot.
The reinforcing ribs 5 on the inner pot body 1 are annular, and the number of the reinforcing ribs 5 is two; the ribs 5 have a height of 1.5mm, a width of 5mm and lengths of 480 and 380 mm. The reinforcing ribs 5 on the outer pot bottom 3 are annular, and the number of the reinforcing ribs 5 is two; the height of the reinforcing bar 5 is 2mm, the width is 3mm, and the length of the reinforcing bar 5 is 680 and 780 mm.
The heat conducting plate 2 is arranged in a cavity 4 between the outer pot bottom 3 and the inner pot body 1, and the installation volume of the heat conducting plate 2 is 75 percent of the volume of the cavity 4 between the outer pot bottom 3 and the inner pot body 1.
The heat conducting plate 2 is made of low-melting-point alloy, and the thickness of the heat conducting plate 2 is 3.5 mm; the low melting point alloy is an alloy having a melting point of 70 ℃.
When the composite bottom pot works, the heat conducting plate 2 conducts solid-liquid phase change heat transfer in the cavity 4 between the outer pot bottom 3 and the inner pot body 1, the flow resistance of the liquid low-melting-point alloy is reduced by the cavity 4, the stagnation effect of the liquid low-melting-point alloy in the cavity 4 in the flowing process is reduced, and the liquid low-melting-point alloy is beneficial to conducting flow heat transfer in the cavity 4.
The utility model discloses a manufacturing method of pot with composite bottom, including following steps:
step one, the heat conducting plate 2 is manufactured into the heat conducting plate 2 which is suitable for the size of the inner surface of the outer pot bottom 3 through die stamping.
And step two, placing the punched heat conducting plate 2 on the inner surface of the outer pot bottom 3. The lower surface of the heat conducting plate 2 is attached to the inner surface of the outer pot bottom 3.
Thirdly, the inner pot body 1 is placed on the outer pot bottom 3, and the bottom of the inner pot body 1 is attached to the heat conducting plate 2 on the outer pot bottom 3; the upper edge of the outer pan bottom 3 is fixed on the pan body of the inner pan body 1 by welding.
Example 2:
as shown in figure 2, the composite bottom pot comprises an inner pot body 1, a heat conducting plate 2 and an outer pot bottom 3.
The composite-bottom pan of the present embodiment 2 has the same structure as the composite-bottom pan of the present embodiment 1, and thus, the description thereof will not be repeated.
The pot bottom of the pot with the composite bottom as shown in figure 2 is round-bottom, and the inner pot body 1 and the outer pot bottom 3 of the pot with the round-bottom composite bottom are not provided with reinforcing ribs.
The above embodiments are only used to help understand the manufacturing method and the core idea of the present invention, and the specific implementation is not limited to the above specific implementation, and those skilled in the art can start from the above conception, and the changes made without creative labor all fall within the protection scope of the present invention.
Claims (1)
1. A composite bottom pan comprises an inner pan body (1), a heat conducting plate (2) and an outer pan bottom (3); the method is characterized in that: the heat conducting plate (2) is arranged in a cavity (4) between the outer pot bottom (3) and the inner pot body (1); the installation volume of the heat conducting plate (2) is 70-80% of the volume of the cavity (4) between the outer pot bottom (3) and the inner pot body (1);
the heat conducting plate (2) is made of low-melting-point alloy, and the thickness of the heat conducting plate (2) is 2-5 mm;
the low-melting-point alloy is metal with a melting point below 180 ℃ and alloy thereof;
the thickness of the pot body of the outer pot bottom (3) is 0.1-2 mm, and the thickness of the pot body of the inner pot body (1) is 0.1-2 mm;
the heat conducting plate (2) is placed on the inner surface of the outer pot bottom (3); the bottom of the inner pot body (1) is attached to the heat conducting plate (2) on the outer pot bottom (3), and the upper edge of the outer pot bottom (3) is fixed on the pot body of the inner pot body (1) through welding;
when the composite bottom pot works, the heat conducting plate (2) conducts heat in a solid-liquid phase change manner in the cavity (4) between the outer pot bottom (3) and the inner pot body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021150723.7U CN212234102U (en) | 2020-06-19 | 2020-06-19 | Composite bottom pot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021150723.7U CN212234102U (en) | 2020-06-19 | 2020-06-19 | Composite bottom pot |
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| Publication Number | Publication Date |
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| CN212234102U true CN212234102U (en) | 2020-12-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021150723.7U Active CN212234102U (en) | 2020-06-19 | 2020-06-19 | Composite bottom pot |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113331671A (en) * | 2021-07-02 | 2021-09-03 | 广东博恩科技有限公司 | Multilayer composite non-stick plate and processing technology thereof |
-
2020
- 2020-06-19 CN CN202021150723.7U patent/CN212234102U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113331671A (en) * | 2021-07-02 | 2021-09-03 | 广东博恩科技有限公司 | Multilayer composite non-stick plate and processing technology thereof |
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