An all-glass heater

By setting a protrusion at the bottom of the glass kettle and a locking structure with the heating base, the problem of uneven thickness of the glass kettle is solved, the risk of glass kettle breakage is reduced, and the stability and safety of the heater are improved.

CN224330787UActive Publication Date: 2026-06-09龚同庆

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
龚同庆
Filing Date
2025-04-11
Publication Date
2026-06-09

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Abstract

This utility model relates to the field of heater technology, specifically an all-glass heater, comprising a glass kettle body and a heating base. The bottom of the glass kettle body has an annular bottom surface, and a boss extends downward from the inner side of the annular bottom surface. The boss includes a platform and a connecting surface, with the upper and lower ends of the connecting surface connected to the annular bottom surface and the platform surface, respectively. The upper end of the connecting surface is inclined towards the central axis of the glass kettle body, forming a constriction, and the heating base is engaged with the outer side of the constriction. This utility model, by providing a downwardly extending boss on the bottom surface of the glass kettle body, with the upper and lower ends of the connecting surface on the boss connected to the annular bottom surface and the platform surface, and the upper end of the connecting surface inclined towards the central axis of the glass kettle body, forming a constriction, can securely engage the heating base while reducing corner areas and minimizing the risk of glass kettle breakage.
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Description

Technical Field

[0001] This utility model relates to the field of heater technology, and in particular to an all-glass heater. Background Technology

[0002] The patent with publication number CN218738380U discloses a heating plate assembly structure for an all-glass electric kettle, comprising: a kettle body, which is integrally made of all-glass; a kettle shell, which is fitted onto the bottom of the kettle body; and a heating plate, which is disposed inside the kettle shell. The outer circumferential surface of the kettle body and the inner circumferential surface of the kettle shell form an inner / outer and upper / lower fastening structure. The top surface of the heating plate is positioned opposite the bottom surface of the kettle body to heat the bottom of the kettle body. The inner / outer and upper / lower fastening structure includes a concave portion surrounding the side wall of the kettle body and a convex portion surrounding the inner wall of the kettle shell. The concave portion and the convex portion are fastened together. The cross-section of the concave portion includes a first inclined surface, a vertical surface, and a second inclined surface, which together form a groove shape.

[0003] The aforementioned technology uses recesses in the body of the kettle to hold the heating plate in place. However, there are multiple corners in the recesses (four corners between the first inclined surface, the vertical surface, and the second inclined surface), and the thickness of these corners is generally thinner than other parts of the kettle body. This results in uneven thickness at the bottom of the glass kettle, increasing the risk of the kettle breaking during heating.

[0004] Therefore, there is an urgent need for an all-glass heater that can secure the heating plate while reducing corners and the risk of glass kettle breakage. Utility Model Content

[0005] To solve the above-mentioned technical problems, the purpose of this utility model is to provide an all-glass heater that can snap onto the heating plate while reducing corner positions and the risk of glass pot body breakage.

[0006] The technical solution adopted by this utility model to solve the problem is: an all-glass heater, including a glass pot body and a heating base. The bottom of the glass pot body is provided with an annular bottom surface. A boss extends downward from the inner side of the annular bottom surface. The boss includes a platform and a connecting surface. The upper and lower ends of the connecting surface are respectively connected to the annular bottom surface and the platform. The upper end of the connecting surface is inclined towards the central axis of the glass pot body and forms a constriction. The heating base is snapped onto the outside of the constriction.

[0007] As a further improvement to the above technical solution, the upper and lower ends of the connecting surface are respectively connected to the annular bottom surface and the platform surface in an arc transition.

[0008] As a further improvement to the above technical solution, the upper end of the heating base is provided with a groove that matches the boss, and the boss is engaged in the groove.

[0009] As a further improvement to the above technical solution, the heating base includes a clamp, which is assembled from a first clamp and a second clamp, and the inner side of the clamp is the sidewall of the groove; the first clamp is provided with mounting grooves at both ends, and the second clamp is provided with a protrusion, which is inserted into the mounting groove, and the protrusion and the mounting groove are fixedly connected together by screws.

[0010] As a further improvement to the above technical solution, a silicone ring is provided between the clamp and the boss.

[0011] As a further improvement to the above technical solution, a handle is also included, the upper end of which is fixedly connected to the glass pot body, and the lower end of which is fixedly connected to the heating base.

[0012] As a further improvement to the above technical solution, a heating plate is installed inside the heating base, the top surface of the heating plate serves as the bottom surface of the groove, and the top surface of the heating plate abuts against the table surface.

[0013] As a further improvement to the above technical solution, both the boss and the groove are in the shape of a frustum.

[0014] As a further improvement to the above technical solution, it also includes a kettle base, which is electrically connected to the heating base.

[0015] The beneficial effects of this utility model are as follows: By setting a downwardly extending boss on the bottom surface of the glass pot, the upper and lower ends of the connecting surface on the boss are connected to the annular bottom surface and the platform surface respectively. The upper end of the connecting surface is inclined towards the central axis of the glass pot and forms a constriction, which can lock the heating base while reducing corners and reducing the risk of glass pot breakage. Attached Figure Description

[0016] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.

[0017] Figure 1 This is a schematic diagram of the structure of the glass pot body of this utility model;

[0018] Figure 2 This is a cross-sectional view of the glass kettle body and heating base of this utility model after assembly;

[0019] Figure 3 for Figure 2 Enlarged structural diagram at point A;

[0020] Figure 4 This is an exploded view of the structure of this utility model;

[0021] Figure 5 This is an exploded view of the structure of the clamp of this utility model;

[0022] In the diagram: 1-Glass kettle body, 10-Central axis, 11-Annular bottom surface, 12-Boss, 121-Tabletop, 122-Connecting surface, 123-Narrow opening, 2-Heating base, 22-Groove, 23-Heating plate, 24-First clamp, 241-Groove, 25-Second clamp, 251-Protrusion, 3-Handle, 4-Kettle base, 5-Silicone ring. Detailed Implementation

[0023] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0024] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0026] Reference Figures 1 to 5 An all-glass heater (electric kettle) includes a glass kettle body 1 (all-glass integral) and a heating base 2. The bottom of the glass kettle body 1 has an annular bottom surface 11, which is connected to the side wall of the glass kettle body 1 via an arc transition. A through hole is provided in the center of the annular bottom surface 11. A boss 12 extends downward from the inner side of the annular bottom surface 11 (i.e., the side wall of the through hole). The boss 12 is frustum-shaped and includes a platform 121 and a connecting surface 122. The upper and lower ends of the connecting surface 122 are respectively connected to the annular bottom surface 11 and the platform 121. The upper end of the connecting surface 122 is inclined towards the central axis 10 of the glass kettle body 1 and forms a constriction 123. The heating base 2 is engaged with the outside of the constriction 123. This invention, by setting a frustum-shaped boss 12, which is narrower at the top and wider at the bottom, can engage the heating base 2 while reducing corner areas and minimizing the risk of breakage of the glass kettle body 1.

[0027] In a preferred embodiment, the upper and lower ends of the connecting surface 122 are respectively connected to the annular bottom surface 11 and the table surface 121 by a rounded transition to avoid sharp corners. The rounded transition connection can prevent the thickness of the sharp corners from being too thin, further reducing the risk of the glass pot body 1 breaking.

[0028] In a preferred embodiment, the upper end of the heating base 2 is provided with a groove 22 that is adapted to the boss 12. The groove 22 is also frustoconical. The boss 12 is engaged in the groove 22, and the outer side of the boss 12 is in contact with the side wall of the groove 22.

[0029] In some embodiments, the heating base 2 includes a clamp, which is assembled from a first clamp 24 and a second clamp 25. The inner surface of the clamp is the sidewall of the groove 22. The first clamp 24 has mounting grooves 241 at both ends, and the second clamp 25 has protrusions 251. The protrusions 251 are inserted into the mounting grooves 241, and the protrusions 251 and the mounting grooves 241 are fixedly connected together by screws. The heating base 2 is clamped to the bottom of the glass pot body 1 by the clamp.

[0030] In a preferred embodiment, a silicone ring 5 is provided between the clamp and the boss 12 to reduce wear on the glass pot body 1.

[0031] In a preferred embodiment, a handle 3 is also included. The upper end of the handle 3 is fixedly connected to the glass pot body 1, and the lower end of the handle 3 is fixedly connected to the heating base 2, thereby connecting the glass pot body 1 and the heating base 2 together and further enhancing the assembly stability between the glass pot body 1 and the heating base 2.

[0032] In some embodiments, a heating plate 23 is installed inside the heating base 2, the top surface of the heating plate 23 serves as the bottom surface of the groove 22, and the top surface of the heating plate 23 abuts against the table surface 121.

[0033] In some embodiments, the device further includes a kettle base 4, which is electrically connected to the heating base 2 and is detachably connected to the heating base 2.

[0034] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the inventive concept of this utility model and the contents of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. An all-glass heater, comprising a glass pot body (1) and a heating base (2), characterized in that: The bottom of the glass pot body (1) is provided with an annular bottom surface (11), and a boss (12) extends downward from the inner side of the annular bottom surface (11). The boss (12) includes a platform (121) and a connecting surface (122). The upper and lower ends of the connecting surface (122) are respectively connected to the annular bottom surface (11) and the platform (121). The upper end of the connecting surface (122) is inclined toward the central axis (10) of the glass pot body (1) and forms a constriction (123), and the heating base (2) is snapped onto the outside of the constriction (123); The upper end of the heating base (2) is provided with a groove (22) that matches the boss (12), and the boss (12) is engaged in the groove (22); The heating base (2) includes a clamp, which is assembled from a first clamp (24) and a second clamp (25), and the inner side of the clamp is the side wall of the groove (22); The first clamp (24) has mounting grooves (241) at both ends, and the second clamp (25) has protrusions (251). The protrusions (251) are inserted into the mounting grooves (241), and the protrusions (251) and the mounting grooves (241) are fixedly connected together by screws.

2. The all-glass heater as described in claim 1, characterized in that: The upper and lower ends of the connecting surface (122) are respectively connected to the annular bottom surface (11) and the platform surface (121) by a circular transition.

3. The all-glass heater as described in claim 1, characterized in that: A silicone ring (5) is provided between the clamp and the boss (12).

4. The all-glass heater as described in claim 1, characterized in that: It also includes a handle (3), the upper end of which is fixedly connected to the glass pot body (1), and the lower end of which is fixedly connected to the heating base (2).

5. The all-glass heater as described in claim 1, characterized in that: A heating plate (23) is installed inside the heating base (2). The top surface of the heating plate (23) serves as the bottom surface of the groove (22). The top surface of the heating plate (23) abuts against the table surface (121).

6. The all-glass heater as described in claim 1, characterized in that: Both the boss (12) and the groove (22) are frustum-shaped.

7. The all-glass heater as described in claim 1, characterized in that: It also includes a kettle base (4), which is electrically connected to the heating base (2).