Kettle

Abstract

The utility model relates to a kind of kettle, including glass kettle body and heating base, the bottom opening of glass kettle body, the bottom of glass kettle body is located and is provided with insertion portion outside opening periphery;The heating base includes wear-resistant insulation upper layer, metal upper layer, carbon base layer, metal lower layer, wear-resistant insulation lower layer and heating layer, the surface of carbon base layer is sequentially provided with wear-resistant insulation upper layer and metal upper layer from top to bottom, the bottom surface of carbon base layer is sequentially provided with metal lower layer, wear-resistant insulation lower layer and heating layer from top to bottom;By setting insertion portion outside opening periphery in glass kettle body bottom, and the insertion portion is inserted into the insertion slot of heating base and is welded connection, the mechanical integration structure of glass kettle body and heating base is realized, compared with traditional adhesive or buckle connection mode, welding connection strength is higher, sealing is better, avoid the leakage risk caused by adhesive aging cracking or thread loosening, improve the reliability and service life of product.

Description

Technical Field

[0001] This utility model relates to a kettle. Background Technology

[0002] Most commercially available electric kettles consist of two parts: the kettle body and the heating base. The kettle body is typically made of glass, stainless steel, or plastic. Glass kettles, in particular, have become increasingly popular in recent years due to their high transparency, ease of observing water levels and boiling conditions, acid and alkali resistance, and ease of cleaning. The heating base integrates the heating element, insulation layer, and outer shell, converting electrical energy into heat energy. Through contact with the bottom of the kettle body, this heat is transferred to the water for rapid heating.

[0003] In existing technologies, the connection between the glass kettle body and the heating base typically employs mechanical snap-fits, sealing rings, or adhesive bonding. Adhesive bonding is widely used due to its simple structure and low cost: epoxy resin or silicone is applied between the bottom of the glass kettle body and the upper layer of the heating base, and a sealed connection is formed after curing. However, this bonding method has the following drawbacks: Adhesives are prone to aging and cracking under high temperature or long-term immersion in water, leading to seal failure; Plasticizers and fillers in some low-quality adhesives are easily dissolved in hot water, posing a safety hazard with long-term use. Utility Model Content

[0004] The purpose of this utility model is to provide a water bottle that has a reliable connection between the glass body and the heating base, and is both lightweight and aesthetically pleasing with good insulation.

[0005] The purpose of this utility model is achieved as follows: A kettle includes a glass kettle body and a heating base, wherein the bottom of the glass kettle body is open and an insertion part is provided at the bottom of the glass kettle body around the opening; The heating base includes a wear-resistant insulating upper layer, a metal upper layer, a carbon base layer, a metal lower layer, a wear-resistant insulating lower layer, and a heating layer. The wear-resistant insulating upper layer and the metal upper layer are arranged sequentially from top to bottom on the surface of the carbon base layer, and the metal lower layer, the wear-resistant insulating lower layer, and the heating layer are arranged sequentially from top to bottom on the bottom surface of the carbon base layer. The heating base is provided with an insertion slot, and the insertion part is placed in the insertion slot and welded to the insertion slot so as to connect the glass pot body and the heating base.

[0006] By setting an insertion part around the bottom opening of the glass kettle body and welding the insertion part into the insertion groove of the heating base, a mechanically integrated structure of the glass kettle body and the heating base is achieved. Compared with the traditional adhesive or snap-fit ​​connection method, the welded connection has higher strength and better sealing performance, avoiding the risk of leakage caused by aging and cracking of the adhesive layer or loosening of the threads, and greatly improving the reliability and service life of the product.

[0007] In the overall structure, the upper and lower wear-resistant insulating layers not only enhance the wear and corrosion resistance of the heating base, but also provide double electrical isolation protection, further improving the product's safety and electrical insulation performance, and meeting the stringent safety standards for household appliances.

[0008] The objective of this utility model can also be achieved by the following technical measures: Furthermore, the heating base also includes a partition ring, and the heating base has a connecting cavity. The size of the partition ring is smaller than the size of the connecting cavity. The partition ring is disposed inside the connecting cavity, and the outer wall of the partition ring and the inner wall of the connecting cavity form the insertion groove.

[0009] By setting a partition ring and a connecting cavity inside the heating base, not only is a precise insertion slot structure formed, but the dual functions of positioning and fixing the insertion part are also realized, so that the glass pot body can achieve self-centering and stable support without additional accessories during assembly.

[0010] The insertion slot structure can automatically lock after the insertion part enters, which greatly simplifies the assembly process, improves production efficiency, and reduces tooling and manual adjustment costs.

[0011] The annular gap between the separator ring and the heating base is just right, which not only ensures the uniform distribution of the welding area, but also effectively buffers the stress caused by thermal expansion and contraction, thus extending the service life of the overall structure.

[0012] Furthermore, the upper and lower metal layers are a mixture of nickel, iron, and copper powder materials.

[0013] The metal layer formed by high-temperature sintering of mixed powders such as nickel, iron, and copper has both excellent thermal conductivity and mechanical strength, and can quickly conduct the heat generated by the heating layer to the carbon base layer and the glass pot body.

[0014] The composition and thickness of the hybrid metal layer can be precisely controlled by the powder ratio to optimize thermal resistance and heat capacity, thereby achieving the best balance between heating rate and energy consumption.

[0015] The synergistic effect of multiple metal elements also improves the antioxidant properties, making it less prone to oxidation and peeling in high-temperature environments, thus enhancing the durability of the base structure.

[0016] Furthermore, the wear-resistant insulating upper layer and the wear-resistant insulating lower layer are made of glass powder or ceramic powder materials.

[0017] The insulation layer, made of glass or ceramic powder, has both high resistivity and high wear resistance. It can not only effectively isolate current and ensure safe use, but also withstand long-term friction and water scale washing, extending the service life of the base surface.

[0018] The ceramic or glass powder layer is tightly bonded to the metal layer and carbon base layer, forming a dense and heat-resistant composite structure that prevents moisture and heat from penetrating between layers, thus helping to improve the overall waterproof and moisture-proof performance.

[0019] The chemical inertness of this material prevents it from decomposing or releasing harmful substances during heating-cooling cycles, thus meeting food-grade safety standards.

[0020] Furthermore, the heating layer includes a thin film layer and an electrode. The thin film layer is disposed on the bottom surface of the wear-resistant and insulating lower layer, and the electrode is disposed on the bottom surface of the thin film layer. The thin film layer receives external current through the electrode to generate heat, which is then transferred to the glass pot body through the wear-resistant and insulating lower layer, the metal lower layer, the carbon base layer, the metal upper layer, and the wear-resistant and insulating upper layer.

[0021] The good adhesion between the electrode and the thin film layer, as well as the synergistic effect of the upper and lower multi-layer thermally conductive structures, ensures uniform heat distribution and avoids local overheating or dead zones.

[0022] The layered heat transfer path is clear, which can effectively isolate the circuit and the water, improve the electrical safety factor, and facilitate the later local maintenance or replacement of the heating layer.

[0023] Furthermore, the thin film layer is a tin-antimony oxide thin film or a silver-palladium or silver-platinum resistance paste thin film.

[0024] Tin antimony oxide (ITO) thin films have low resistance, high transparency and excellent thermal stability, which can make the heating layer thinner and lighter while ensuring heating efficiency and reducing the overall thickness.

[0025] Silver-palladium and silver-platinum resistance pastes are widely used in high-end heating applications due to their adjustable resistivity and good corrosion resistance. They can be precisely formulated according to power requirements to meet the differentiated designs of different power levels.

[0026] Both types of films can be mass-produced using mature processes such as spraying and screen printing, exhibiting good process stability and repeatability, reducing production costs and ensuring product consistency.

[0027] The beneficial effects of this utility model are as follows: This invention achieves a mechanically integrated structure between the glass pot body and the heating base by setting an insertion part around the bottom opening of the glass pot body and welding the insertion part into the insertion groove of the heating base. Compared with traditional adhesive or snap-fit ​​connection methods, the welded connection has higher strength and better sealing performance, avoiding the risk of leakage caused by aging and cracking of the adhesive layer or loosening of the threads, and greatly improving the reliability and service life of the product. Attached Figure Description

[0028] Figure 1 This is a diagram of a kettle.

[0029] Figure 2 This is a cross-sectional view of the kettle.

[0030] Figure 3 This is an assembly diagram of a kettle. Detailed Implementation

[0031] The present invention will be further described below with reference to the accompanying drawings and embodiments: Implementation examples, in conjunction with Figures 1 to 3 As shown, a kettle includes a glass kettle body 1 and a heating base 2. The bottom of the glass kettle body 1 has an opening 11, and an insertion part 12 is provided at the bottom of the glass kettle body 1 around the opening 11. The heating base 2 includes a wear-resistant insulating upper layer 21, a metal upper layer 22, a carbon base layer 23, a metal lower layer 24, a wear-resistant insulating lower layer 25, and a heating layer 26. The wear-resistant insulating upper layer 21 and the metal upper layer 22 are arranged sequentially from top to bottom on the surface of the carbon base layer 23, and the metal lower layer 24, the wear-resistant insulating lower layer 25, and the heating layer 26 are arranged sequentially from top to bottom on the bottom surface of the carbon base layer 23. The heating base 2 is provided with an insertion groove 27, and the insertion part 12 is placed in the insertion groove 27 and welded to the insertion groove 27 so that the glass pot body 1 and the heating base 2 are connected.

[0032] Furthermore, the heating base 2 also includes a partition ring 4, and the heating base 2 has a connecting cavity 31. The size of the partition ring 4 is smaller than the size of the connecting cavity 31. The partition ring 4 is disposed in the connecting cavity 31, and the outer wall of the partition ring 4 and the inner wall of the connecting cavity 31 form the insertion groove 27.

[0033] Furthermore, the upper metal layer 22 and the lower metal layer 24 are mixed powder materials of nickel, iron and copper.

[0034] Furthermore, the wear-resistant insulating upper layer 21 and the wear-resistant insulating lower layer 25 are made of glass powder or ceramic powder materials.

[0035] Furthermore, the heating layer 26 includes a thin film layer and an electrode. The thin film layer is disposed on the bottom surface of the wear-resistant insulating lower layer 25, and the electrode is disposed on the bottom surface of the thin film layer. The thin film layer receives external current through the electrode to generate heat, which is then transferred to the glass pot body 1 through the wear-resistant insulating lower layer 25, the metal lower layer 24, the carbon base layer 23, the metal upper layer 22, and the wear-resistant insulating upper layer 21.

[0036] Furthermore, the thin film layer is a tin-antimony oxide thin film or a silver-palladium or silver-platinum resistance paste thin film.

Claims

1. A kettle, comprising a glass kettle body and a heating base, characterized in that: The glass pot body has an opening at the bottom, and an insertion part is provided at the bottom of the glass pot body around the opening. The heating base includes a wear-resistant insulating upper layer, a metal upper layer, a carbon base layer, a metal lower layer, a wear-resistant insulating lower layer, and a heating layer. The wear-resistant insulating upper layer and the metal upper layer are arranged sequentially from top to bottom on the surface of the carbon base layer, and the metal lower layer, the wear-resistant insulating lower layer, and the heating layer are arranged sequentially from top to bottom on the bottom surface of the carbon base layer. The heating base is provided with an insertion slot, and the insertion part is placed in the insertion slot and welded to the insertion slot so as to connect the glass pot body and the heating base.

2. The kettle according to claim 1, characterized in that: The heating base also includes a partition ring. The heating base has a connecting cavity. The size of the partition ring is smaller than the size of the connecting cavity. The partition ring is disposed inside the connecting cavity. The outer wall of the partition ring and the inner wall of the connecting cavity form the insertion groove.

3. The kettle according to claim 1, characterized in that: The wear-resistant insulating upper layer and the wear-resistant insulating lower layer are made of glass powder or ceramic powder materials.

4. The kettle according to claim 1, characterized in that: The heating layer includes a thin film layer and an electrode. The thin film layer is disposed on the bottom surface of the wear-resistant and insulating lower layer, and the electrode is disposed on the bottom surface of the thin film layer. The thin film layer receives external current through the electrode to generate heat, which is then transferred to the glass pot body through the wear-resistant and insulating lower layer, the metal lower layer, the carbon base layer, the metal upper layer, and the wear-resistant and insulating upper layer.

5. The kettle according to claim 4, characterized in that: The thin film layer is a tin-antimony oxide thin film or a silver-palladium or silver-platinum resistance paste thin film.

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