Non-circular product brazing shielding heating device

Abstract

The utility model discloses a non-circular product brazing shielding heating device which comprises a heating module and a heat transfer sheet, and a shielding piece is further arranged between the heating module and the heat transfer sheet. The non-circular product brazing shielding heating device is novel and ingenious in design, through the arrangement of the non-circular heat transfer piece and the long-strip-shaped shielding piece, uniform heating of non-circular products is achieved, the problem that brazing heating of the non-circular products is not uniform is effectively solved, the brazing quality is improved, and the actual requirement in industrial production is met.

Description

Technical Field

[0001] This utility model relates to the field of industrial heating technology, and in particular to a brazing shielding heating device for non-circular products. Background Technology

[0002] Because the thermal conductivity of 304 stainless steel is only about one-third that of iron, in the stainless steel cookware industry, to achieve more even and faster heating and to achieve energy conservation and environmental protection, such as... Figure 1 As shown, aluminum, a material with excellent heat conductivity, is typically added to the bottom of the pot body, creating a "sandwich"-like structure consisting of three layers: the pot body 41, an aluminum sheet 42, and a bottom sheet 43. In current industrial production, pressure welding and brazing are commonly used to firmly connect the "sandwich" structure of the cookware. Pressure welding uses high temperature and pressure to firmly bond three or more materials together, while brazing uses high temperature to melt flux and bond several materials together.

[0003] Brazing often employs medium- and high-frequency heating. Its working principle is as follows: Conventional 50Hz alternating current is converted into 15–200kHz or even higher alternating current. When this current passes through an induction coil, the coil emits corresponding alternating electromagnetic waves. When these electromagnetic waves pass through an iron-based heat transfer plate, an induced rotating current (eddy current) proportional to the magnetic field strength is generated on the plate. This rotating current, aided by the resistance within the heat transfer plate, is converted into heat energy, providing the necessary heat for brazing. The heated heat transfer plate then transfers heat to the bottom plate, aluminum sheet, and pot body primarily through heat conduction and radiation, thus heating the product.

[0004] During the brazing process, such as Figure 2 As shown, when the induction coil 44 heats a non-circular product 45, the uneven induced eddy currents 46 often cause inconsistent heating temperatures in different areas of the non-circular product 45, resulting in uneven heating on both sides of the edge (see...). Figure 2 The excessively high local temperature in part A makes it difficult to achieve uniform heating of the edges and center of non-circular products, resulting in unstable brazing quality. To achieve uniform heating of non-circular products, existing technologies design the induction coil to be essentially identical in shape to the product being heated. However, this approach has a serious drawback: due to the diverse shapes of products, the demand for customized induction coils increases accordingly, leading to higher manufacturing costs and requiring frequent replacement of the heating head, making operation more complex and difficult.

[0005] Therefore, it is of great significance to design a brazing heating device that can uniformly heat non-circular products. Utility Model Content

[0006] The purpose of this utility model is to provide a brazing shielding heating device for non-circular products, thereby solving the problems mentioned in the background art. To achieve the above objective, this utility model provides the following technical solution:

[0007] A brazing shielded heating device for non-circular products includes a heating module and a heat transfer plate, and a shield is provided between the heating module and the heat transfer plate.

[0008] Furthermore, the heat transfer plate is configured to be non-circular.

[0009] Furthermore, the shielding element is configured as a long strip.

[0010] Furthermore, the number of shielding components is set to two, and the two shielding components are positioned opposite each other on both sides between the heating module and the heat transfer plate.

[0011] Furthermore, the shielding component is made of copper.

[0012] Furthermore, the heating module, the shielding component, and the heat transfer plate are fixedly connected together.

[0013] Furthermore, the heating module includes an induction coil and a cooling device, wherein the induction coil, the cooling device, the shield, and the heat transfer plate are connected and fixed sequentially from top to bottom.

[0014] Furthermore, the induction coil is configured to be circular.

[0015] The beneficial effects of this utility model are as follows: The non-circular product brazing shielding heating device of this utility model has a novel and ingenious design. By setting non-circular heat transfer plates and long strip-shaped shielding components, it achieves uniform heating of non-circular products, effectively solves the problem of uneven heating in brazing of non-circular products, improves brazing quality, and meets the actual needs in industrial production. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of a cookware based on the prior art.

[0018] Figure 2 This is a schematic diagram illustrating the heating effect of brazing cookware using existing technology.

[0019] Figure 3This is a schematic diagram of the structure of this utility model.

[0020] It should be noted that the accompanying drawings are not necessarily drawn to scale, but are shown only in a schematic manner without affecting the reader's understanding. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] In this invention, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0023] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

[0024] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances.

[0025] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, elements, or components (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0026] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0027] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0028] like Figure 3 As shown, a brazing shielding heating device for non-circular products includes a heating module 1 and a heat transfer plate 2, with a shielding component 3 disposed between the heating module 1 and the heat transfer plate 2.

[0029] The design principle of this application is as follows: To avoid excessively high temperatures in certain areas of non-circular products, a shielding element 3 is added above the high-temperature areas at the edge of the heat transfer plate 2. On one hand, the shielding element 3 effectively shields the alternating electromagnetic waves generated by the induction coil 11, preventing eddy currents from directly acting on the corresponding areas of the non-circular product, thus avoiding localized overheating and temperature increases. On the other hand, the heat generated by the interaction between the shielding element 3 and the alternating electromagnetic waves is scattered and propagated to the heat transfer plate 2 through thermal conduction, and then the heat transfer plate 2 uniformly heats the product through thermal conduction. Therefore, through the dual effects of the shielding element 3 absorbing the energy of the alternating electromagnetic waves and then conducting and scattering it, the accumulation and propagation of heat generated by the alternating electromagnetic waves are suppressed, thereby achieving the goal of avoiding localized overheating of the product and realizing uniform heating of non-circular products.

[0030] The brazing shielding heating device for non-circular products in this application has a novel and ingenious design. By setting up non-circular heat transfer plates 2 and long strip-shaped shielding components 3, it achieves uniform heating of non-circular products, effectively solves the problem of uneven heating during brazing of non-circular products, improves brazing quality, and meets the actual needs in industrial production.

[0031] In the specific implementation process of this embodiment, please refer to... Figure 3 The heat transfer plate 2 is set to be non-circular, specifically a polygonal structure, which can better adapt to the shape of non-circular products and improve heating efficiency and brazing quality.

[0032] In the specific implementation process of this embodiment, please refer to... Figure 3The shielding element 3 is designed as a long strip, which is beneficial for localized shielding of the heating area, allowing heat to be distributed more evenly onto the heat transfer plate 2. To address the issue of excessively high local temperatures on the edges of non-circular products, two shielding elements 3 are provided. These two shielding elements 3 are positioned opposite each other between the heating module 1 and the heat transfer plate 2, and are fixed to the upper sides of the heat transfer plate 2 to achieve a shielding effect on the product edges and improve heating uniformity.

[0033] In the specific implementation process of this embodiment, please refer to... Figure 3 The shielding element 3 is made of copper. Copper is chosen for this purpose because it has a high density and atomic number, allowing it to better absorb and scatter electromagnetic wave energy. When the energy of alternating electromagnetic waves passes through the copper shielding element 3, it excites the electrons within the copper, causing them to absorb and convert the energy into heat, thus reducing the propagation of the alternating electromagnetic wave energy. Secondly, copper has excellent electrical and thermal conductivity, meaning that the heat generated by the interaction between the alternating electromagnetic wave and the copper can be quickly dissipated through thermal conduction. Therefore, thanks to the copper shielding element 3, the accumulation and propagation of heat generated by alternating electromagnetic waves are suppressed, thereby reducing the localized overheating.

[0034] In traditional brazing production, the heating module 1 and the heat transfer plate 2 are independent structures. During production, for each product, the heat transfer plate 2 must be individually clamped onto the bottom plate. On the one hand, the temperature of the heat transfer plate 2 is relatively high in actual production, making manual installation, disassembly, and replacement inconvenient. On the other hand, when the heated product is large, the required heat transfer plate 2 is also relatively heavy, increasing the labor intensity for workers. Therefore, in the specific implementation process of this embodiment, see... Figure 3 The heating module 1, shielding component 3, and heat transfer plate 2 are fixedly connected together as a whole heating mold, which can reduce the labor intensity of workers. At the same time, since the position of the heat transfer plate 2 is kept fixed, the uneven heating caused by inaccurate positioning of the heat transfer plate 2 can be reduced, thus improving the product qualification rate.

[0035] In the specific implementation process of this embodiment, please refer to... Figure 3 The heating module 1 includes an induction coil 11 and a cooling device 12. The induction coil 11, cooling device 12, shield 3, and heat transfer plate 2 are connected and fixed sequentially from top to bottom. This structure achieves both heating and effective cooling of the heating module 1, improving the stability and service life of the device. The induction coil 11 is a commonly available circular induction coil, capable of generating a uniform magnetic field. Through the cooperation of the non-circular heat transfer plate 2 and shield 3, uniform heating of non-circular products can be achieved.

[0036] It should also be noted that, without conflict, the embodiments of this utility model and the features therein can be combined with each other to obtain new embodiments.

[0037] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. The scope of protection of the present utility model should be determined by the scope of the claims. Although the present utility model has been disclosed above with reference to preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A brazing shielding heating device for non-circular products, comprising a heating module (1) and a heat transfer plate (2), characterized in that, A shielding element (3) is also provided between the heating module (1) and the heat transfer plate (2); the heat transfer plate (2) is non-circular; the shielding element (3) is long strip-shaped; there are two shielding elements (3), and the two shielding elements (3) are positioned opposite each other on both sides between the heating module (1) and the heat transfer plate (2).

2. The non-round product brazing shield heating device of claim 1, wherein, The shielding component (3) is made of copper.

3. The non-round product brazing shield heating device of claim 1, wherein, The heating module (1), the shield (3), and the heat transfer plate (2) are fixedly connected together.

4. The non-round product brazing shield and heating apparatus of claim 3, wherein, The heating module (1) includes an induction coil (11) and a cooling device (12), wherein the induction coil (11), the cooling device (12), the shield (3) and the heat transfer plate (2) are connected and fixed from top to bottom in sequence.

5. The non-round product brazing shield and heating apparatus of claim 4, wherein, The induction coil (11) is circular.

Images