WO2015042948A1 - 一种节能复合锅底及其制造工艺 - Google Patents

一种节能复合锅底及其制造工艺 Download PDF

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Publication number
WO2015042948A1
WO2015042948A1 PCT/CN2013/084705 CN2013084705W WO2015042948A1 WO 2015042948 A1 WO2015042948 A1 WO 2015042948A1 CN 2013084705 W CN2013084705 W CN 2013084705W WO 2015042948 A1 WO2015042948 A1 WO 2015042948A1
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Prior art keywords
concave
pot bottom
flow guide
energy
conductive metal
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PCT/CN2013/084705
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English (en)
French (fr)
Inventor
刘炳耀
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广东万事泰集团有限公司
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Publication of WO2015042948A1 publication Critical patent/WO2015042948A1/zh

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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J36/00—Parts, details or accessories of cooking-vessels
    • A47J36/02—Selection of specific materials, e.g. heavy bottoms with copper inlay or with insulating inlay
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P2700/00—Indexing scheme relating to the articles being treated, e.g. manufactured, repaired, assembled, connected or other operations covered in the subgroups
    • B23P2700/05—Cooking vessels

Definitions

  • the invention relates to the technical field of cooking pots, in particular to an energy-saving composite pot bottom and a manufacturing process thereof. Background technique
  • the composite pan bottom generally has good thermal conductivity, energy saving and heat transfer balance in the pan. Under normal circumstances, the bottom of the composite pan is flat. When heated by gas, the hot air flows through the middle of the bottom of the pan and then spreads around. The residence time at the bottom of the pan is short, and there is no sufficient heat exchange with the bottom of the pan. More, the heat utilization rate is low. Summary of the invention
  • the utility model relates to an energy-saving composite pot bottom, which is characterized in that: the bottom of the pot is made up of a stainless steel inner layer, a thermally conductive metal interlayer and a magnetically conductive metal outer layer, and a plurality of triangles are arranged around the center of the outer layer of the magnetic conductive metal at the bottom of the pot.
  • the concave and convex slots are arranged in an arc shape on the outer side of the bottom of the center of the circle.
  • the concave and convex slots are formed by protruding positions provided by the outer layer of the magnetic conductive metal, and the concave grooves are formed between the two protruding positions.
  • the ratio of the width of the recessed groove to the protruding position is two : 0. 2 ⁇ 1VL 2 ⁇ 3
  • the height difference between the recessed groove and the protruding position is d 0. 2TM ⁇ d ⁇ 10
  • the invention has the beneficial effects of: the energy-saving composite pot bottom of the invention and the manufacturing process thereof, wherein the bottom of the pot is made up of a stainless steel inner layer, a heat conductive metal interlayer and a magnetic conductive metal outer layer, and the magnetic permeability at the bottom of the pot
  • the outer layer of the metal is provided with a plurality of triangular flow guiding regions around the center, and each of the guiding regions is arranged with a plurality of concave and convex slots arranged in the direction of the long sides, and an open end of the concave and convex slots of the guiding region is oriented.
  • the other open end of the concave and convex groove of the flow guiding area faces the long concave and convex groove side of the adjacent flow guiding area; when the pot is in use, the hot air of combustion passes through the middle of the bottom of the pot, and passes through the bottom of the pot.
  • the concave and convex slots of the flow area flow out outward, increasing the contact area and the outflow time with the bottom of the pot, enhancing heat conduction and improving efficiency.
  • FIG. 1 is a schematic cross-sectional structural view of a bottom structure of the present invention
  • FIG. 2 is a schematic view showing the structure of the concave and convex groove of the bottom of the pot according to Embodiment 1 of the present invention
  • FIG. 4 is a schematic view showing the structure of the concave and convex groove of the bottom of the pot according to Embodiment 2 of the present invention
  • Figure 5 is a schematic cross-sectional view showing the bottom of the pot of the embodiment 3 of the present invention.
  • FIG. 6 is a schematic structural view of a bottom portion of a pot according to Embodiment 4 of the present invention.
  • FIG. 7 is a schematic cross-sectional structural view of a bottom of a pot according to Embodiment 5 of the present invention.
  • FIG. 8 is a schematic cross-sectional structural view of a bottom portion of a sixth embodiment of the present invention.
  • FIG. 9 is a schematic structural view of a bottom portion of a pot according to Embodiment 7 of the present invention.
  • Embodiment 1 an energy-saving composite pot bottom, wherein the bottom of the pot is made of a stainless steel inner layer 1.
  • the heat conductive metal interlayer 2 and the magnetic conductive metal outer layer 3 are composited, and a plurality of triangular flow guiding regions 4 are arranged around the center of the magnetic conductive metal outer layer 3 at the bottom of the pot.
  • 6 guiding regions 4 are provided. (shown by the dashed box in FIG.
  • each of the flow guiding regions 4 is arranged with a plurality of concave and convex slots 41 arranged in the direction of the long sides, and an open end of the concave and convex slots 41 of the flow guiding region 4 faces the bottom of the pot On the outer side, the other open end of the concave-convex groove 41 of the flow guiding portion 4 faces the long concave-convex groove 41 of the adjacent flow guiding portion 4.
  • a convex groove 42 is formed in the outer surface 3 of the magnetic conductive metal, and a concave groove is formed between the two convex positions 42.
  • the processing is simple, and the depressed groove 43 is formed to allow the hot air flow to easily pass.
  • the concave-convex groove 41 of the present invention has a quadrangular or arched shape or a triangular or trapezoidal or fishbone shape or a combination of the above shapes.
  • the concave groove 43 of the actual concave and convex groove 41 is arched and
  • the protruding position 42 has a quadrangular cross section.
  • the concave and convex groove position 41 is a center of the circle (the center of the circle 0 in Fig. 2 is the center of the concave and convex groove of the flow guiding area).
  • the width ratio 1VL 2 of the depressed groove 43 to the convex position 42 is: 0. 2 ⁇ / ⁇ , and the height difference between the concave groove 43 and the convex position 42 is d, When 0. 2mm ⁇ d ⁇ 10mm, the heat transfer efficiency is high.
  • the manufacturing process of the composite pan bottom of the invention mainly comprises the following process steps:
  • step b heating: the composite sheet prepared in step a is heated to 55 (TC-650 ° C ;
  • stamping forming the heated composite sheet is pressed into a pot on a press by a punch having a embossing pattern, and the groove of the concave and convex groove is extruded at the bottom of the pot.
  • the manufacturing process of the invention has simple process flow, and does not need to perform separate processing on the groove of the concave and convex groove, and can be integrally formed in the stamping process.
  • the hot air of combustion passes through the middle of the bottom of the pot, and then flows out through the concave and convex groove 41 of the bottom flow guiding area 4, thereby increasing the contact area and outflow time with the bottom of the pot, enhancing heat conduction and improving efficiency.
  • the hot gas portion flows out at one end of the concave and convex groove 41 on the outer side of the bottom of the pan, and the other portion enters the long concave and convex groove 41 side of the adjacent flow guiding portion 4, since the flow guiding portion 4 is annularly arranged at the bottom of the pan, each piece The direction of the hot gas swirling into the adjacent diversion zone 4 is the same, and a swirling flow airflow is formed at the bottom of the pot (as shown in Fig. 3), and the hot gas is swirled and then flows out, increasing the contact time and contact area with the bottom of the pan.
  • the layer can be used for the induction cooker, which can improve the thermal efficiency of the induction cooker: Due to the provision of the concave-convex groove 41, the contact area with the induction cooker panel is reduced, the area of the bottom of the pot is transmitted to the battery furnace panel, and the heat is heated to the heating object in the pot.
  • the heat conduction in addition, because the heat transferred from the bottom of the pot to the furnace panel is reduced, the conduction heat of the induction cooker is reduced, the heat load of the induction cooker is reduced, and the damage of the panel to the induction cooker is avoided.
  • Embodiment 2 The structure is basically similar to that of Embodiment 1, except that the concave-convex groove 41 of this embodiment is a straight line arrangement of non-arc (as shown in Fig. 4).
  • Embodiment 3 is basically similar to that of Embodiment 1, except that the section of the concave-convex groove 41 of this embodiment is arched (as shown in Fig. 5).
  • Embodiment 4 is basically similar to that of Embodiment 1, except that the cross section of the concave-convex groove 41 of this embodiment is a quadrangle (as shown in Fig. 6).
  • Embodiment 5 The structure is basically similar to that of Embodiment 1, except that the section of the concave-convex groove 41 of this embodiment is trapezoidal (as shown in Fig. 7).
  • Embodiment 6 The structure is basically similar to that of Embodiment 1, except that the cross section of the concave-convex groove 41 of this embodiment is triangular (as shown in Fig. 8).
  • Embodiment 7 The structure is basically similar to that of Embodiment 1, except that the cross section of the concave-convex groove 41 of this embodiment is a fish ridge shape (as shown in Fig. 9).

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Cookers (AREA)

Abstract

公开了一种节能复合锅底及其制造工艺。所述锅底由不锈钢内胆层（1）、导热金属夹层（2）、导磁金属外层（3）复合而成，在锅底的导磁金属外层（3）绕中心环状设置若干三角状的导流区（4），所述导流区（4）在长边向端点方向上排列设置若干凹凸槽位（41）所述锅底的导磁金属外层（3）绕中心环状设置若干三角状的导流区（4），所述导流区（4）的凹凸槽（41）位的一开口端朝向锅底外侧，另一开口端朝向相邻导流区（4）的长凹凸槽位（41）边。使用时，燃烧的热气流经过锅底中部后，经过锅底导流区的凹凸槽位后向外流出，而且，由于进入相邻的导流区热气方向一致，在锅底形成了一定旋向的流动气流，增加与锅底的接触时间和接触面积，从而增强热传导，提升热交换率，起到明显的节能降耗的作用。

Description

一种节能复合锅底及其制造工艺 技术领域
本发明涉及烹饪锅具技术领域， 尤其是指一种节能复合锅底及其制造工艺。 背景技术
复合锅底一般具有良好的导热性、 节能型以及热传导均衡在锅具里得到广 泛的使用。 通常情况下， 复合锅底是平底状， 通过燃气加热时， 热气流经过锅 底中部后向四周散开， 在锅底的停留时间较短， 未与锅底充分进行热交换， 热 量流失的较多， 热利用率低下。 发明内容
本发明在于针对目节能复合锅底的热利用率低下的问题存在的不足， 而提 供解决以上问题的一种节能复合锅底及其制造工艺。
为达到上述目的， 本发明采用如下技术方案：
一种节能复合锅底， 其特征在于， 所述锅底由不锈钢内胆层、 导热金属夹 层、 导磁金属外层复合而成， 在锅底的导磁金属外层绕中心环状设置若干三角 状的导流区， 所述每导流区在长边向端点方向上排列设置若干凹凸槽位， 所述 导流区的凹凸槽位的一开口端朝向锅底外侧， 导流区的凹凸槽位的另一开口端 朝向相邻导流区的长凹凸槽位边。
较佳的， 所述凹凸槽位为圆心锅底外侧的弧状设置。
较佳的， 所述凹凸槽位由导磁金属外层设置的凸出位形成， 两凸出位间形 成凹陷槽。
较佳的， 所述凹陷槽与凸出位的宽度比 几2为： 0. 2< 1VL2〈3
较佳的， 所述凹陷槽与凸出位的高度差为 d 0. 2™〈d〈10
较佳的， 凹凸槽位的截面为四边形或拱形或三角形或梯形或鱼脊形或以上 形状的结合。
本发明复合锅底的制造工艺， 主要包括以下工艺步骤：
a、 点焊连接： 将不锈钢内胆层、 导热金属夹层、 导磁金属外层的板材按顺 序排列， 定位点焊成复合板材； b、 加热： 将步骤 a制得的复合板材加热至 55(TC-650°C ; c、 冲压成型， 将加热后的复合板材在压力机上通过设置有凹凸纹的冲模挤 压成锅， 并在锅底挤压出凹凸槽位纹路。
本发明的有益效果在于： 本发明的一种节能复合锅底及其制造工艺， 所述 锅底由不锈钢内胆层、 导热金属夹层、 导磁金属外层复合而成， 在锅底的导磁 金属外层绕中心环状设置若干三角状的导流区， 所述每导流区在长边向端点方 向上排列设置若干凹凸槽位， 所述导流区的凹凸槽位的一开口端朝向锅底外侧， 导流区的凹凸槽位的另一开口端朝向相邻导流区的长凹凸槽位边； 当锅具在使 用时， 燃烧的热气流经过锅底中部后， 经过锅底导流区的凹凸槽位后向外流出， 增加跟锅底的接触面积和流出时间， 加强热传导， 提升效率， 另外， 热气部分 在凹凸槽位靠锅底外侧的一端流出， 另一部分进入相邻的导流区的长凹凸槽位 边， 由于导流区在锅底环状设置， 每件进入相邻的导流区热气旋向方向一致， 在锅底形成了一定旋向的流动气流， 热气旋动后再流出， 增加与锅底的接触时 间和接触面积， 增强热传导， 提升热交换率， 起到明显的节能降耗的作用。 附图说明
图 1为本发明锅底结构剖面结构示意图
图 2为本发明实施例 1锅底凹凸槽位结构示意图
图 3为本发明实施例 1锅底使用时热气流向示意图
图 4为本发明实施例 2锅底凹凸槽位结构示意图
图 5为本发明实施例 3锅底剖面结构示意图
图 6为本发明实施例 4锅底剖面结构示意图
图 7为本发明实施例 5锅底剖面结构示意图
图 8为本发明实施例 6锅底剖面结构示意图
图 9为本发明实施例 7锅底剖面结构示意图 具体实施方式
下面结合附图 1-9对本发明作进一步阐述：
实施例 1， 一种节能复合锅底， 其特征在于， 所述锅底由不锈钢内胆层 1、 导热金属夹层 2、导磁金属外层 3复合而成， 在锅底的导磁金属外层 3绕中心环 状设置若干三角状的导流区 4， 本实施例设置了 6件导流区 4 (图 2中虚线框所 示）， 所述每导流区 4在长边向端点方向上排列设置若干凹凸槽位 41， 所述导流 区 4的凹凸槽位 41的一开口端朝向锅底外侧， 导流区 4的凹凸槽位 41的另一 开口端朝向相邻导流区 4的长凹凸槽位 41边。
为了实现凹凸槽位 41， 在导磁金属外层 3设置的凸出位 42， 两凸出位 42 间形成凹陷槽 43， 加工工艺简单， 形成的凹陷槽 43使热气流容易通过。
本发明的凹凸槽位 41的截面为四边形或拱形或三角形或梯形或鱼脊形或以 上形状的结合， 作为一较佳实施例， 本实凹凸槽位 41 的凹陷槽 43为拱形与， 凸出位 42截面为四边形， 为了使气流流动顺畅， 凹凸槽位 41为圆心 （如图 2 中的圆心 0为一导流区的凹凸槽位的圆心） 锅底外侧的弧状设置。
为了达到较好的热较好效果， 通过实验得到， 凹陷槽 43与凸出位 42的宽 度比 1VL2为： 0. 2< / ^,凹陷槽 43与凸出位 42的高度差为 d， 0. 2mm〈d〈10mm 时， 热传导效率较高。
本发明复合锅底的制造工艺， 主要包括以下工艺步骤：
a、 点焊连接： 将不锈钢内胆层 1、 导热金属夹层 2、 导磁金属外层 3的板 材按顺序排列， 定位点焊成复合板材；
b、 加热： 将步骤 a制得的复合板材加热至 55(TC-650°C ;
c、 冲压成型， 将加热后的复合板材在压力机上通过设置有凹凸纹的冲模挤 压成锅， 并在锅底挤压出凹凸槽位纹路。
本发明的制作工艺， 工艺流程简单， 无需对凹凸槽位纹路进行单独工艺处 理， 在冲压成型过程中即可一体成型。
当锅具在使用时， 燃烧的热气流经过锅底中部后， 经过锅底导流区 4的凹凸 槽位 41后向外流出， 增加跟锅底的接触面积和流出时间， 加强热传导， 提升效 率， 另外， 热气部分在凹凸槽位 41靠锅底外侧的一端流出， 另一部分进入相邻 的导流区 4的长凹凸槽位 41边， 由于导流区 4在锅底环状设置， 每件进入相邻的 导流区 4热气旋向方向一致， 在锅底形成了一定旋向的流动气流 （如图 3所示）， 热气旋动后再流出， 增加与锅底的接触时间和接触面积， 增强热传导， 提升热 交换率， 起到明显的节能降耗的作用， 另外本发明的复合锅底采用导磁金属外 层可以为电磁炉具使用， 能提高电磁炉的热效率： 由于设置凹凸槽位 41， 减小 了与电磁炉面板的接触面积， 减小了锅底传导给电池炉面板的面积， 提高热向 锅内加热物体的热传导， 另外， 由于减小了锅底传导给电池炉面板的热量， 电 磁炉的传导热减少， 电磁炉热负荷减少， 避免面板过热对电磁炉的危害。
实施例 2， 结构与实施例 1基本类似， 不同之处在于， 本实施例的凹凸槽位 41为非圆弧的直线设置 （如图 4所示）。
实施例 3， 结构与实施例 1基本类似， 不同之处在于， 本实施例凹凸槽位 41 的截面为拱形 （如图 5所示）。
实施例 4， 结构与实施例 1基本类似， 不同之处在于， 本实施例凹凸槽位 41 的截面为四边形 （如图 6所示）。
实施例 5， 结构与实施例 1基本类似， 不同之处在于， 本实施例凹凸槽位 41 的截面为梯形 （如图 7所示）。
实施例 6， 结构与实施例 1基本类似， 不同之处在于， 本实施例凹凸槽位 41 的截面为三角形 （如图 8所示）。
实施例 7， 结构与实施例 1基本类似， 不同之处在于， 本实施例凹凸槽位 41 的截面为鱼脊形 （如图 9所示）。
以上所述实施例， 只是本发明的较佳实例， 并非来限制本发明实施范围， 故凡依本发明申请专利范围所述的构造、 特征及原理所做的等效变化或修饰， 均应包括于本发明专利申请范围内。

Claims

权利要求书
1、 一种节能复合锅底， 其特征在于， 所述锅底由不锈钢内胆层（1)、 导热 金属夹层 (2)、导磁金属外层 (3)复合而成，在锅底的导磁金属外层 (3)绕中心环 状设置若干三角状的导流区 (4)， 所述每导流区 (4)在长边向端点方向上排列设 置若干凹凸槽位 (41)， 所述导流区（4)的凹凸槽位 (41)的一开口端朝向锅底外 侧， 导流区 (4)的凹凸槽位 (41)的另一开口端朝向相邻导流区（4)的长凹凸槽位 (41)边。
2、根据权利要求 1所述一种节能复合锅底，其特征在于：所述凹凸槽位 (41) 为圆心锅底外侧的弧状设置。
3、根据权利要求 1所述一种节能复合锅底，其特征在于：所述凹凸槽位 (41) 由导磁金属外层 (3)设置的凸出位 (42)形成， 两凸出位 (42)间形成凹陷槽 (43)
4、根据权利要求 3所述一种节能复合锅底， 其特征在于： 所述凹陷槽 (43) 与凸出位（42)的宽度比 1 L2为： 0. 2< 1VL2〈3
5、根据权利要求 3所述一种节能复合锅底， 其特征在于： 所述凹陷槽 (43) 与凸出位（42)的高度差为 d 0. 2™〈d〈10
6、根据权利要求 1所述一种节能复合锅底，其特征在于：所述凹凸槽位 (41) 的截面为四边形或拱形或三角形或梯形或鱼脊形或以上形状的结合。
7、根据权利要求 1-6任一项所述一种节能复合锅底的制造工艺， 其特征在 于： 主要包括以下工艺步骤：
a、 点焊连接： 将不锈钢内胆层、 导热金属夹层、 导磁金属外层的板材按 顺序排列， 定位点焊成复合板材；
b、 加热： 将步骤 a制得的复合板材加热至 55(TC-650°C ;
c、 冲压成型， 将加热后的复合板材在压力机上通过设置有凹凸纹的冲模 挤压成锅， 并在锅底挤压出凹凸槽位纹路。
PCT/CN2013/084705 2013-09-25 2013-09-30 一种节能复合锅底及其制造工艺 WO2015042948A1 (zh)

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