Novel heating ring and hot pot stove base

By using an internal heating ring design and a flame-retardant insulating layer, the problem of low heat conduction efficiency in metal heating rings is solved, resulting in faster food cooking, a longer heating ring lifespan, and reduced production costs.

CN223958693UActive Publication Date: 2026-03-03陈垂青
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Patent Information

Application Number
CN202520389193.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-06
Publication Date
2026-03-03
Estimated Expiration
2035-03-06

AI Technical Summary

Technical Problem

The metal heating rings of existing hot pot boilers have low heat conduction efficiency, resulting in long cooking times for food inside the pot, and the heating rings are prone to damage due to direct contact, which shortens their service life.

Method used

It adopts an internal cavity heating ring design, with embedded flame-retardant insulation material as a heat insulation layer, and air holes are opened on the surface of the upper shell. Combined with heating wire or electromagnetic coil as heating element, heat can be directly conducted to the pot body.

Benefits of technology

It improves heat transfer efficiency, shortens cooking time, extends the lifespan of the heating ring, and reduces production costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a novel heating ring and a hotpot stove seat, and relates to the technical field of cooking utensils, the novel heating ring comprises an upper shell and a lower shell which are combined to form a ring body, a concave cavity of the lower shell is embedded with a flame-retardant insulating material serving as a heat insulation layer, and a heating element laid on the heat insulation layer is communicated with a circuit line outside the lower shell. Heat generated by the heating element can be conducted upwards to the upper shell so as to heat the pot body. Compared with the prior art, the heating ring of the design has higher heat conduction efficiency, food materials in a pot body can be rapidly cooked, meanwhile, the production process of the heating ring is simpler compared with a heating ring cast by pure metal, and the manufacturing cost of a manufacturer can be saved to a certain extent.
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Description

Technical Field

[0001] This utility model relates to a novel heating ring and a hot pot boiler base equipped with the heating ring, belonging to the field of cooking utensil technology. Background Technology

[0002] Currently, there is a type of hot pot boiler on the market, the structure of which can be referenced from the inventor's prior patent with publication number "CN204049215U". This type of hot pot boiler is characterized by a separate pot body and stove base, and offers both charcoal and electric heating methods. The inventor discovered that the pure metal heating ring used in the stove base has relatively low heat conduction efficiency, and when using electric heating, the food in the pot takes longer to cook. Therefore, the inventor designed a novel heating ring and a hot pot boiler base incorporating this heating ring, and has filed the following application. Utility Model Content

[0003] To address the shortcomings of the existing technology, this utility model provides a novel heating ring and boiler base.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a novel heating ring, comprising an upper shell and a lower shell assembled to form a ring body, wherein a flame-retardant insulating material is embedded in the cavity of the lower shell as a heat insulation layer, and a heating element laid on the heat insulation layer is connected to the circuit line outside the lower shell, and the heat generated by the heating element can be conducted upward to the upper shell to heat the pot body.

[0005] Preferably, the groove formed by the heat insulation layer is fixed with limiting blocks for clamping the two ends of the heating element, and two circuit lines pass through the groove from the bottom of the lower shell and are connected to the two ends of the heating element.

[0006] Preferably, the top surface of the limiting block is formed with an H-shaped clamping part, and the two ends of the heating element are clamped by the two clamping grooves of the clamping part.

[0007] Preferably, the bottom of the lower housing has a wire harness for organizing the two circuit lines.

[0008] Preferably, the bottom of the lower shell has several legs.

[0009] Preferably, the flame-retardant insulating material used as the heat insulation layer is asbestos or ceramic.

[0010] Preferably, the upper shell and the lower shell are made of high-temperature resistant metal, and the upper shell has a number of pores on its surface, and the upper shell is fitted on top of the lower shell.

[0011] Preferably, the upper shell is made of high-temperature resistant glass, and the lower shell is made of high-temperature resistant metal, with the upper shell bonded to the top of the lower shell.

[0012] Preferably, the heating element laid on the insulation layer is any one of a heating wire, a heating tube, or an electromagnetic coil.

[0013] This utility model also provides a boiler base, which includes a boiler base body, and the novel heating ring is fixed to the top of the boiler base body.

[0014] This utility model has at least the following advantages:

[0015] 1. It has faster heat conduction efficiency, and the top surface of the heating ring can remain at a high temperature, which can speed up the cooking of food;

[0016] 2. The manufacturing process is simpler than that of heating rings made from pure metal casting, which can save manufacturers' production costs;

[0017] 3. Using flame-retardant insulation material as the heat insulation layer can prevent the heating element from directly contacting the heating ring, which could cause the shell to burn or be damaged. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of Example 1.

[0019] Figure 2 yes Figure 1 A schematic diagram of the bottom surface.

[0020] Figure 3 This is an internal schematic diagram of Example 1.

[0021] Figure 4 yes Figure 3 Enlarged diagram of point A in the middle.

[0022] Figure 5 This is a cross-sectional schematic diagram of Example 1.

[0023] Figure 6 This is a schematic diagram of the structure of Example 2.

[0024] In the diagram, 1-upper shell; 101-vent; 2-lower shell; 201-foot bracket; 3-heating element; 4-heat insulation layer; 5-limiting block; 501-clamping part; 6-circuit wire; 601-wire harness. Detailed Implementation

[0025] 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.

[0026] Example 1

[0027] like Figures 1-5 As shown: A novel heating ring is used to install on the top of the furnace base body (not shown in the figure). The pot of the hot pot boiler can be placed on the heating ring. The heating ring is a ring body with an upper shell 1 and a lower shell 2 tightly embedded to form an inner cavity. A heating wire is installed in the inner cavity of the ring body as a heating element 3. The heating wire is connected to the electrical control element circuit of the furnace base. When it heats up due to the circuit control, the heat can be conducted upward to the upper shell 1. The upper shell 1 heats up due to the heat, thus heating the food in the pot.

[0028] Furthermore, the lower shell 2 forms a cavity of a certain depth and is filled with a layer of flame-retardant insulation material as a heat insulation layer 4. In this embodiment, the flame-retardant insulation material is preferably asbestos, and the heating wire is arranged in multiple loops on the top surface of the heat insulation layer 4 in a reciprocating manner; Figures 3-5 As shown, a limiting block 5 with a clamping part 501 on the top is installed in the through groove formed by the heat insulation layer 4. The clamping part 501 is H-shaped, and the two clamping grooves formed therein are used to limit and clamp the beginning and end ends of the heating wire, so that the heating wire can be fixed on the heat insulation layer 4. At the same time, the two circuit lines 6 of the furnace base can also pass through the through groove from the bottom of the lower shell 2 into the heat insulation layer 4 and connect with the two ends of the heating wire to control the heating of the heating wire.

[0029] Furthermore, in order to improve the heating effect of the upper shell 1, the heating wire can be arranged in a wavy manner around the heat insulation layer 4.

[0030] Furthermore, the bottom of the lower shell 2 is also provided with a wire harness 601 for organizing the two circuit lines 6, so as to prevent them from being too scattered in the furnace base.

[0031] Furthermore, the upper shell 1 and lower shell 2 can be made of high-temperature resistant insulating metal. In order to avoid the metal itself weakening the heat transfer due to its heat insulation properties, the upper shell is also provided with several openings on its surface. The heat generated by the heating wire can pass through the air hole 101 to directly heat the pot body.

[0032] Furthermore, the upper shell 1 can have several pores 101 on its surface, so that the heat generated by the heating wire can pass through the pores 101 to directly heat the pot body.

[0033] Furthermore, the bottom of the lower shell 2 is also detachably equipped with three "U"-shaped legs 201, and the heating ring can be fastened to the top of the furnace body through the legs and screws.

[0034] Example 2

[0035] like Figure 6As shown: The difference between this and Embodiment 1 is that the upper shell 1 of the heating ring is made of high-temperature resistant insulating glass. Compared with Embodiment 1, the glass upper shell 1 gives the surface of the heating ring a higher texture. Of course, since glass may not be able to be directly embedded with metal in the process, the upper shell 1 can be fixed to the upper shell 2 by adhesive.

[0036] Example 3

[0037] The difference between this and Example 2 is that the heating element 3 of the heating ring is an electromagnetic coil, which uses electromagnetic induction to heat the food in the pot.

[0038] In existing designs, the heating ring is typically made of pure metal casting. The heating element on the stove base heats the bottom of the ring, gradually raising the top surface. The pot placed on the ring then transfers heat through contact, cooking the food inside. However, due to imperfections in the initial manufacturing process or impacts during use, some pots develop uneven bottoms. This creates gaps between the pot and the heating ring, causing some heat to escape and affecting cooking. This design, in contrast, improves the heating ring by creating an internal cavity structure with a circular heating element inside. This maximizes heat transfer efficiency, allowing the top surface of the ring to heat up rapidly, reducing heat loss and effectively accelerating cooking.

[0039] On the other hand, traditional heating rings, because their bottom surface is directly heated by the furnace base, may develop noticeable burns or damage after prolonged use, necessitating replacement. This design, by laying a heat insulation layer inside the heating ring's cavity, prevents the heating element from directly contacting and damaging the ring's shell, thus extending the heating ring's lifespan to some extent.

[0040] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A novel heating ring characterized by: The application relates to a new type of heating ring, which comprises an upper shell (1) and a lower shell (2) combined to form a ring body, a concave cavity of the lower shell (2) is embedded with flame-retardant insulation as a heat insulation layer (4), a heating element (3) laid on the heat insulation layer (4) is connected with circuit lines (6) outside the lower shell (2), and the heating element (3) generates heat which can be conducted upwards to the upper shell (1) to heat a pot body.

2. A novel heating ring as claimed in claim 1, characterized in that: The heat insulation layer (4) is provided with limiting blocks (5) for clamping the two ends of the heating element (3), and the two circuit lines (6) are penetrated into the through slot from the bottom of the lower shell (2) and connected with the two ends of the heating element (3).

3. A novel heating ring as claimed in claim 2, wherein: The top surface of the limiting block (5) is provided with an H-shaped clamping part (501), and the two ends of the heating element (3) are clamped by the two clamping grooves of the clamping part (501).

4. A novel heating ring as claimed in claim 1, wherein: The bottom of the lower shell (2) is provided with a wire harness (601) for arranging the two circuit lines (6).

5. A novel heating ring as claimed in claim 1, wherein: The bottom of the lower shell (2) is provided with several foot supports (201).

6. A new type of heating ring as claimed in claim 1, characterized in that: The flame-retardant insulation as the heat insulation layer (4) is asbestos or ceramic.

7. A new type of heating ring as claimed in claim 1, characterized in that: The upper shell (1) and the lower shell (2) are made of high-temperature-resistant metal, the upper shell (1) is provided with several air holes on the surface thereof, and the upper shell (1) is embedded above the lower shell (2).

8. A new type of heating ring as claimed in claim 1, characterized by: The upper shell (1) is made of high-temperature-resistant glass, the lower shell (2) is made of high-temperature-resistant metal, and the upper shell (1) is bonded above the lower shell (2).

9. A new type of heating ring as claimed in claim 1, characterized in that: The heating element (3) laid on the heat insulation layer (4) is any one of a heating wire, a heating tube or an electromagnetic coil.

10. A fire pit, characterized by: The application further relates to a furnace base body, and the new type of heating ring is fixed on the top of the furnace base body.

Citation Information

Patent Citations

  • Multifunctional split cooking hot pot

    CN204049215U