A prefabricated kettle heating element

By combining modular design with a limiting mechanism, the heating element of the kettle can be replaced individually and easily disassembled, solving the problems of inability to replace and inconvenient maintenance of heating devices in existing technologies, and improving maintenance efficiency.

CN224290103UActive Publication Date: 2026-05-26LIANJIANG GUMEI ELECTRICAL APPLIANCES CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
LIANJIANG GUMEI ELECTRICAL APPLIANCES CO LTD
Filing Date
2025-06-16
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

The heating element of existing kettles is a one-piece design, which means that the heating element and the base are injection molded together. When damaged, the parts cannot be replaced separately, making maintenance inconvenient.

Method used

The assembly design allows for the individual replacement and convenient disassembly of the heating element through a combination of limit blocks, support limit strips, wires, kettle couplers, and positioning mechanisms. Each component is secured with fastening bolts.

Benefits of technology

It enables individual replacement and convenient disassembly of the heating element, solving the problems of inability to replace damaged parts and inconvenient repair in existing technologies, and improving maintenance efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a prefabricated kettle heating element, relating to the field of household goods technology. It includes a contact plate, with a limiting block fixedly connected to the top of the contact plate. A heating element is housed inside the limiting block, and a wire is fixedly connected to one end of the heating element. A kettle coupler is fixedly connected to the end of the wire away from the heating element. A supporting limiting strip is inserted into the limiting block above the heating element. Four sets of limiting mechanisms are arranged on the top wall of the contact plate above the supporting limiting strip, and a positioning mechanism is arranged below the center of the contact plate. This utility model has a reasonable design structure. By rotating the fastening bolt D, the limiting frame is disengaged from the contact frame. At this point, the supporting limiting strip can be removed from the limiting block, and the wire can be disconnected from the kettle coupler, allowing for easy replacement of the heating element. This provides the advantage of replacing parts individually.
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Description

Technical Field

[0001] This utility model relates to the field of daily necessities technology, specifically a prefabricated kettle heating element. Background Technology

[0002] An electric kettle is an electric water heater used to boil water. It generally has a separate power base, an automatic boiling switch, a water level indicator, and a power indicator light, among other safety features. The typical technical specifications are around 950W-1500W, with water capacities ranging from 0.5 to 2 liters, and a voltage of 220-240V. Due to its fast heating speed and ease of use, the electric kettle is currently the preferred device for boiling water in households. Modular kettle heating elements refer to electric kettle heating elements that adopt a modular design and can be disassembled or installed separately. This design is usually easy to assemble, repair, or replace, and is suitable for various scenarios such as home and commercial use.

[0003] Currently, most kettles on the market have a heating element with a heating plate welded to it. The heating element generates heat to power the liquid inside the kettle. However, most existing kettle heating elements are one-piece designs, with the heating element and base injection molded together. This means that damaged parts cannot be replaced individually, and the heating element is inconvenient to remove from the kettle during repairs, making the process cumbersome. Therefore, we offer a modular kettle heating element design to solve these problems. Utility Model Content

[0004] 1) Technical problems to be solved

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide an assembled kettle heating element.

[0006] (ii) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a prefabricated kettle heating element, including a contact plate, a limiting block fixedly connected to the top of the contact plate, a heating element disposed inside the limiting block, a wire fixedly connected to the end of the heating element, a kettle coupler fixedly connected to the end of the wire away from the heating element, a supporting limiting strip inserted inside the limiting block above the heating element, four sets of limiting mechanisms disposed on the top wall of the contact plate above the supporting limiting strip, and a positioning mechanism disposed below the center of the contact plate.

[0008] Furthermore, a contact block is fixedly connected to the bottom wall of the contact plate below the heating tube, and three "U"-shaped fixing blocks are arranged in an array on the outer wall of the contact plate, with fastening bolts A inside the fixing blocks.

[0009] Furthermore, a connecting ring is connected through the axial center of the contact plate, and bolt holes are arrayed on the top of the connecting ring. The kettle coupler is fixed in the bolt holes by fastening bolt B.

[0010] Furthermore, the front end of the kettle coupler is provided with an extension block that is connected to the wire. The top wall of the extension block is connected to the wire through a metal contact piece. The metal contact piece is connected to the kettle coupler. The rear end of the kettle coupler is fixedly connected to a junction box. The rear end of the junction box has four wire slots. The top of the junction box is rotatably connected to a fastening bolt C above the wire slots.

[0011] Furthermore, the bottom wall of the support limiting strip engages with the outer wall of the heating tube, and the top of the limiting block has a groove that engages with the heating tube.

[0012] Furthermore, the limiting mechanism includes a limiting frame, which is arranged in a "Z" shape. A contact frame is fixedly connected to the top wall of the contact plate and engages with the bottom of the limiting frame. The bottom of the limiting frame is engaged with the contact plate by a fastening bolt D.

[0013] Furthermore, the positioning mechanism includes a positioning frame, which is fixedly connected to the bottom wall of the inner liner of the external kettle. Three fixing screws are arranged in an array on the top of the positioning frame inside the contact plate, and fixing nuts are engaged on the outer surface of the fixing screws above the contact plate.

[0014] (iii) Beneficial effects:

[0015] Compared with existing technologies, this assembled kettle heating element has the following advantages:

[0016] I. This utility model allows the limiting frame to be disengaged from the contact frame by rotating the fastening bolt D. At this time, the supporting limiting strip can be removed from the limiting block, and the wire can be removed from the kettle coupler to replace the heating element. This solves the problem that the heating element and the base of the existing kettle are injection molded together, which makes it impossible to replace the parts separately when damaged. It has the advantage of replacing parts separately.

[0017] II. This utility model uses fastening bolt A to fix the contact plate to the bottom wall of the kettle's inner liner. The contact plate drives the contact block to fit tightly against the kettle's inner liner. The fixing nut and fixing screw engage to fix the center position of the contact plate. At the same time, the wire is fixed in the wire groove by fastening bolt C. This solves the problem that the heating device of the existing kettle is inconvenient to remove from the kettle during maintenance, which makes operation more troublesome. It has the advantage of easy disassembly. Attached Figure Description

[0018] Figure 1 This is a triaxial drawing of the present invention;

[0019] Figure 2 This is a schematic diagram of the contact block of this utility model;

[0020] Figure 3 This is a schematic diagram of the contact frame of this utility model;

[0021] Figure 4 This is a schematic diagram of the positioning frame of this utility model.

[0022] In the diagram: 1. Contact plate; 2. Limiting block; 3. Heating element; 4. Wire; 5. Kettle coupler; 6. Support limiting strip; 7. Contact block; 8. Fastening bolt A; 9. Connecting ring; 10. Fastening bolt B; 11. Metal contact piece; 12. Junction box; 13. Cable tray; 14. Fastening bolt C; 15. Limiting frame; 16. Contact frame; 17. Fastening bolt D; 18. Positioning frame; 19. Fixing screw; 20. Fixing nut. Detailed Implementation

[0023] 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.

[0024] like Figures 1-4As shown, this utility model provides a technical solution: an assembled kettle heating element, including a contact plate 1, a limiting block 2 fixedly connected to the top of the contact plate 1, a heating element 3 disposed inside the limiting block 2, a contact block 7 fixedly connected to the bottom wall of the contact plate 1 below the heating element 3, three "U"-shaped fixing blocks arranged in an array on the outer wall of the contact plate 1, and fastening bolts A8 disposed inside the fixing blocks. The fixing blocks facilitate the fastening bolts A8 to fix and limit the contact plate 1. A fixing post is disposed on the bottom wall of the outer kettle liner, which engages with the fastening bolts A8. The fixing post facilitates the connection between the fastening bolts A8 and the outer kettle liner. A wire 4 is fixedly connected to the end of the heating element 3, and the end of the wire 4 away from the heating element 3 is fixedly connected to... A kettle coupler 5 is provided. A connecting ring 9 is connected through the axial center of the contact plate 1. Bolt holes are arrayed on the top of the connecting ring 9. The kettle coupler 5 is fixed in the bolt holes by fastening bolts B10. An extension block is provided at the front end of the kettle coupler 5 to connect to the wire 4. The top wall of the extension block is connected to the wire 4 by a metal contact piece 11. The metal contact piece 11 is connected to the kettle coupler 5. A junction box 12 is fixedly connected to the rear end of the kettle coupler 5. Four wire slots 13 are provided at the rear end of the junction box 12. The wire slots 13 are designed to facilitate the connection of the wires 4. A fastening bolt C14 is rotatably connected to the top of the junction box 12 above the wire slots 13. A support limit strip 6 is inserted inside the limit block 2 above the heating element 3. The bottom wall of the support limiting strip 6 engages with the outer wall of the heating tube 3. The top of the limiting block 2 has a groove that engages with the heating tube 3, facilitating the positioning of the heating tube 3. Four limiting mechanisms are located on the top wall of the contact plate 1 above the support limiting strip 6. Each limiting mechanism includes a limiting frame 15, which is arranged in a "Z" shape. A contact frame 16 is fixedly connected to the top wall of the contact plate 1, engaging with the bottom of the limiting frame 15. The contact frame 16 positions the limiting frame 15. The bottom of the limiting frame 15 engages with the contact plate 1 via a fastening bolt D17. The limiting frame 15 ensures the heating tube 3 is tightly against the limiting block 2. When the heating tube 3 needs to be replaced, the fastening bolt D17 is rotated to disengage the limiting frame 15 from the contact frame 16, allowing the support to be positioned. The heating element 3 can be replaced by removing the limiting strip 6 from the limiting block 2 and disconnecting the wire 4 from the kettle coupler 5. A positioning mechanism is set below the center position of the contact plate 1. The positioning mechanism includes a positioning frame 18, which is fixedly connected to the bottom wall of the outer kettle liner. Three fixing screws 19 are arranged in an array on the top of the positioning frame 18 inside the contact plate 1. A fixing nut 20 is engaged on the outer surface of the fixing screw 19 above the contact plate 1. The contact plate 1 is fixed to the bottom wall of the kettle liner by fastening bolt A8. The contact plate 1 drives the contact block 7 to fit tightly against the kettle liner. The fixing nut 20 engages with the fixing screw 19 to fix the center position of the contact plate 1. At the same time, the wire 4 is fixed in the wire groove 13 by fastening bolt C14.

[0025] Working principle: When the heating element of this assembled kettle is in use, the contact plate 1 is fixed to the bottom wall of the kettle's inner liner by the fastening bolt A8. The contact plate 1 drives the contact block 7 to fit tightly against the inner liner of the kettle. The fixing nut 20 engages with the fixing screw 19 to fix the center position of the contact plate 1. At the same time, the wire 4 is fixed in the wire groove 13 by the fastening bolt C14. When the heating element 3 needs to be replaced, the fastening bolt D17 is rotated to make the limiting frame 15 disengage from the contact frame 16. At this time, the supporting limiting strip 6 can be removed from the limiting block 2, and the wire 4 can be removed from the kettle coupler 5 to replace the heating element 3.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An assembled hot water kettle heating tube, comprising a contact disc (1), characterized in that: The top of the contact plate (1) is fixedly connected to a limiting block (2), and a heating tube (3) is provided inside the limiting block (2). A wire (4) is fixedly connected to the end of the heating tube (3). A kettle coupler (5) is fixedly connected to the end of the wire (4) away from the heating tube (3). A support limiting strip (6) is inserted inside the limiting block (2) above the heating tube (3). Four sets of limiting mechanisms are provided on the top wall of the contact plate (1) above the support limiting strip (6). A positioning mechanism is provided below the center of the contact plate (1).

2. The assembled water-heating tube according to claim 1, wherein: The bottom wall of the contact plate (1) is fixedly connected to a contact block (7) below the heating tube (3). Three "U"-shaped fixing blocks are arranged in an array on the outer wall of the contact plate (1), and fastening bolts A (8) are arranged inside the fixing blocks.

3. The assembled water-heating tube according to claim 1, wherein: The contact plate (1) is connected to a connecting ring (9) through the axial center position. Bolt holes are arrayed on the top of the connecting ring (9). The kettle coupler (5) is fixed in the bolt holes by fastening bolt B (10).

4. The assembled water-heater heating tube according to claim 1, characterized in that: The kettle coupler (5) has an extension block at its front end that is connected to the wire (4). The top wall of the extension block is connected to the wire (4) through a metal contact piece (11). The metal contact piece (11) is connected to the kettle coupler (5). The kettle coupler (5) has a junction box (12) fixedly connected to its rear end. The junction box (12) has four wire slots (13) at its rear end. The top of the junction box (12) is rotatably connected to a fastening bolt C (14) above the wire slots (13).

5. The assembled water-heater heating tube according to claim 1, characterized in that: The bottom wall of the support limiting strip (6) engages with the outer wall of the heating tube (3), and the top of the limiting block (2) has a groove that engages with the heating tube (3).

6. The assembled water-heating tube according to claim 1, wherein: The limiting mechanism includes a limiting frame (15), which is arranged in a "Z" shape. The top wall of the contact plate (1) is fixedly connected to a contact frame (16) that meshes with the bottom of the limiting frame (15). The bottom of the limiting frame (15) is meshed with the contact plate (1) by a fastening bolt D (17).

7. The assembled kettle heating element according to claim 1, characterized in that: The positioning mechanism includes a positioning frame (18), which is fixedly connected to the bottom wall of the inner liner of the outer kettle. The top of the positioning frame (18) is arranged with three fixing screws (19) inside the contact plate (1), and the outer surface of the fixing screws (19) is engaged with a fixing nut (20) above the contact plate (1).