Novel electric hot-water bag heating body

By using a high-temperature resistant plastic shell and a hook connection design, the high cost problem caused by the metal heat-conducting sleeve is solved, achieving low cost and easy maintenance of the heating element in the electric hot water bag, and ensuring the stability and safety of the heating element.

CN224188761UActive Publication Date: 2026-05-01SU SHILI (NINGBO) MEDICAL EQUIP CO LTD
View PDF 1 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SU SHILI (NINGBO) MEDICAL EQUIP CO LTD
Filing Date
2025-06-04
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

The heat-conducting sleeve of the heating element in existing electric hot water bags is made of metal, which results in high production costs and affects maintenance flexibility.

Method used

The upper and lower shells are made of high-temperature resistant plastic and are detachably connected by hooks and connecting holes. The heating element is positioned by reinforcing blocks and positioning grooves, and the temperature is detected by a temperature controller. It is protected by anti-rust coating and heat-conducting material.

Benefits of technology

It reduces material and processing costs, improves the convenience of disassembly and maintenance, and ensures the stability and safety of heating components.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224188761U_ABST
    Figure CN224188761U_ABST
Patent Text Reader

Abstract

The utility model discloses a novel electric hot-water bag heating body, which belongs to the technical field of electric hot-water bags, and adopts the technical scheme that the novel electric hot-water bag heating body comprises a heating element and an outer shell, the outer shell is made of high-temperature-resistant plastics and comprises an upper shell and a lower shell, the upper shell and the lower shell are spliced to form the outer shell, and the upper shell and the lower shell are detachably connected. An installation main body is detachably arranged on the heating element, a containing space is formed in the installation main body and used for installing a temperature controller for detecting the temperature of the heating element, and the upper shell and the lower shell are matched to clamp the heating element and the installation main body. And the upper shell and the lower shell which are made of high-temperature-resistant plastics are matched to clamp and position the heating element, so that a heat conduction sleeve made of a metal material and a corresponding processing flow are omitted, and the material and processing cost is reduced.
Need to check novelty before this filing date? Find Prior Art

Description

A novel electric hot water bag heating element Technical Field

[0001] This utility model belongs to the field of electric hot water bag technology, and specifically relates to a novel heating element for electric hot water bags. Background Technology

[0002] Electric hot water bottles are common household items used by people to keep warm in cold weather.

[0003] Chinese Patent No. CN219166858U discloses a heating element for a hot water bag, including a heating element body and a fuse; the fuse includes a molten part and an electrode part; a receiving cavity is formed inside the heating element body and is sealed and isolated from the outside, the molten part of the fuse is sealed in the receiving cavity, and the electrode part of the fuse extends out of the heating element body.

[0004] The above technical solution has the following defects: The heating element includes a heating element body, which includes an electric heating tube and a heat-conducting sleeve integrally formed outside the electric heating tube. The heat-conducting sleeve is integrally formed outside the electric heating tube by metal die casting. The heat-conducting sleeve conducts heat and positions the electric heating tube. However, since the heat-conducting sleeve is made of metal, the production cost is high. Moreover, the integrated design of the electric heating tube and the heat-conducting sleeve affects the flexibility of subsequent maintenance and replacement. Summary of the Invention

[0005] The purpose of this utility model is to address the aforementioned problems in the existing technology by proposing a novel heating element for electric hot water bags. The technical problem to be solved by this utility model is: how to reduce costs.

[0006] The above-mentioned technical objective of this utility model can be achieved through the following technical solution: A novel electric hot water bag heating element includes a heating element and a shell. The shell is made of high-temperature resistant plastic and includes an upper shell and a lower shell. The upper shell and the lower shell are assembled to form the shell, and the upper shell and the lower shell are detachably connected. A mounting body is detachably provided on the heating element. The mounting body is provided with a receiving space. The receiving space is used to install a thermostat for detecting the temperature of the heating element. The upper shell and the lower shell cooperate to clamp the heating element and the mounting body.

[0007] In the above-mentioned novel electric hot water bag heating element, the upper shell is provided with a number of hooks, and the lower shell is provided with a number of connection holes, and the hooks are respectively engaged with the corresponding connection holes.

[0008] In the above-mentioned novel electric hot water bag heating element, the upper shell is provided with several reinforcing blocks (first type), and the lower shell is provided with several reinforcing blocks (second type).

[0009] In the above-mentioned novel electric hot water bag heating element, a number of reinforcing blocks 1 are provided with positioning grooves 1 that are adapted to the heating element, and a number of reinforcing blocks 2 are provided with positioning grooves 2 that are adapted to the heating element.

[0010] In the aforementioned novel electric hot water bag heating element, several of the hooks are provided with guide slopes.

[0011] In the above-mentioned novel electric hot water bag heating element, connecting ears are provided on both sides of the mounting body, and positioning holes are provided on the connecting ears. The heating element passes through the positioning holes, and a support part for supporting the mounting body is provided on the outer shell.

[0012] In the above-mentioned novel electric hot water bag heating element, the heating element is connected to a power connector via a wire, and the power connector is electrically connected to the thermostat.

[0013] In the above-mentioned novel electric hot water bag heating element, the surface of the heating element is coated with a primer, the surface of the primer is coated with a water-based anti-rust coating, and the surface of the water-based anti-rust coating is coated with a protective layer.

[0014] In the aforementioned novel electric hot water bag heating element, the outer shell is made of polypropylene.

[0015] In the aforementioned novel electric hot water bag heating element, the protective layer is made of a thermally conductive material.

[0016] In summary, the beneficial effects of this utility model compared to the prior art are as follows:

[0017] 1. By eliminating the need for a heat-conducting sleeve made of metal, the heating element is used directly for heating. The upper and lower shells made of high-temperature resistant plastic are used to clamp and position the heating element, thereby eliminating the need for a metal heat-conducting sleeve and the corresponding processing steps, thus reducing material and processing costs.

[0018] 2. The upper and lower shells are detachably connected, which facilitates production and subsequent disassembly and maintenance. Attached Figure Description

[0019] Figure 1 is a schematic diagram of the embodiment;

[0020] Figure 2 is a schematic diagram of the installation body of the embodiment;

[0021] Figure 3 is a schematic diagram of the upper shell structure in the embodiment;

[0022] Figure 4 is a schematic diagram of the shell structure in the embodiment;

[0023] Figure 5 is a partial cross-sectional view of the embodiment.

[0024] Reference numerals: 1. Heating element; 2. Outer shell; 21. Upper shell; 22. Lower shell; 3. Mounting body; 4. Accommodation space; 5. Support; 6. Hook; 7. Connecting hole; 8. Reinforcing block one; 9. Reinforcing block two; 10. Positioning groove one; 11. Positioning groove two; 12. Guide slope; 13. Connecting ear; 14. Positioning hole; 15. Power connector; 16. Primer; 17. Water-based anti-rust coating; 18. Protective layer. Detailed Implementation

[0025] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0026] A novel electric hot water bag heating element, as shown in Figures 1 to 5, includes a heating element 1 and a shell 2. The shell 2 is made of high-temperature resistant plastic. In this embodiment, the shell 2 is made of polypropylene. Alternatively, the shell 2 can also be made of polyphenylene sulfide material.

[0027] The outer shell 2 includes an upper shell 21 and a lower shell 22. The upper shell 21 and the lower shell 22 are assembled to form the outer shell 2, and the upper shell 21 and the lower shell 22 are detachably connected. Specifically, the upper shell 21 is provided with several hooks 6, and the lower shell 22 is provided with several connection holes 7. The hooks 6 are respectively engaged in the corresponding connection holes 7. By engaging the hooks 6 in the connection holes 7, a stable connection between the upper shell 21 and the lower shell 22 is achieved. During disassembly and assembly, only external force is needed to engage or disengage the hooks 6 in the connection holes 7. The operation is simple and convenient for disassembly and maintenance.

[0028] The upper shell 21 and the lower shell 22 cooperate to clamp the heating element 1. Specifically, the upper shell 21 is provided with a number of reinforcing blocks 1 8, and each of the reinforcing blocks 1 8 is provided with a positioning groove 10 adapted to the heating element 1. The lower shell 22 is provided with a number of reinforcing blocks 2 9, and each of the reinforcing blocks 2 9 is provided with a positioning groove 2 11 adapted to the heating element 1. Through the positioning effect of the positioning groove 1 10 and the positioning groove 2 11 on the heating element 1, the stable clamping of the heating element 1 by the upper shell 21 and the lower shell 22 can be ensured.

[0029] Furthermore, several hooks 6 are provided with guide slopes 12. Through the guiding effect of the guide slopes 12, it is easier and less effort to engage or disengage the hooks 6 from the connecting holes 7, which can effectively improve the efficiency of disassembly and assembly and is more conducive to later maintenance.

[0030] It should be noted that the first reinforcing block 8 and the second reinforcing block 9 can respectively improve the structural strength of the upper shell 21 and the lower shell 22.

[0031] The heating element 1 is detachably mounted on the mounting body 3, and the mounting body 3 is provided with a receiving space 4, which is used to install a temperature controller for detecting the temperature of the heating element 1.

[0032] That is, the temperature of the heating element 1 is detected by the thermostat. When the temperature of the heating element 1 reaches the specified temperature, the thermostat controls the heating element 1 to stop working to avoid dry burning.

[0033] Both sides of the mounting body 3 are provided with connecting ears 13, and positioning holes 14 are provided on the connecting ears 13. The heating element 1 passes through the positioning holes 14 to ensure the relative stability between the heating element 1 and the mounting body 3, thereby ensuring the relative stability between the heating element 1 and the temperature controller.

[0034] The upper housing 21 and the lower housing 22 are fitted together to clamp the mounting body 3. The outer housing 2 is provided with a support part 5 for supporting the mounting body 3, thereby further ensuring the stability of the mounting body 3 and thus ensuring the stability of the thermostat.

[0035] A power connector 15 is connected to the heating element 1 via a wire, and the power connector 15 is electrically connected to the thermostat.

[0036] The surface of the heating element 1 is coated with a primer 16, the surface of the primer 16 is coated with a water-based anti-rust paint 17, and the surface of the water-based anti-rust paint 17 is coated with a protective layer 18. It should be noted that by coating the surface of the heating element 1 with primer 16, the water-based metal anti-rust paint is prevented from peeling off the heating element 1. The water-based metal anti-rust paint can effectively prevent the surface of the heating element 1 from contacting water and thus rusting, thereby reducing the risk of the heating element 1 rusting. The protective layer 18 protects the water-based metal anti-rust paint, thereby reducing the corrosion of the water-based metal anti-rust paint and ensuring that the water-based metal anti-rust paint can stably perform its anti-rust function for a long time.

[0037] Preferably, the protective layer 18 is made of a thermally conductive material, thereby allowing heat to be conducted away quickly.

[0038] The specific embodiments described herein are merely illustrative examples of the spirit of this utility model; those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or adopt similar methods to replace them, but without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A novel electric hot water bag heating element, comprising a heating element (1) and a shell (2), characterized in that: The outer shell (2) is made of high-temperature resistant plastic. The outer shell (2) includes an upper shell (21) and a lower shell (22). The upper shell (21) and the lower shell (22) are assembled to form the outer shell (2). The upper shell (21) and the lower shell (22) are detachably connected. The heating element (1) is detachably provided with a mounting body (3). The mounting body (3) is provided with a receiving space (4). The receiving space (4) is used to install a temperature controller for detecting the temperature of the heating element (1). The upper shell (21) and the lower shell (22) cooperate to clamp the heating element (1) and the mounting body (3).

2. The novel electric hot water bag heating element according to claim 1, characterized in that: The upper housing (21) is provided with a plurality of hooks (6), and the lower housing (22) is provided with a plurality of connecting holes (7), and the plurality of hooks (6) are respectively engaged with the corresponding connecting holes (7).

3. A novel electric hot water bag heating element according to any one of claims 1 or 2, characterized in that: The upper shell (21) is provided with a plurality of reinforcing blocks (8), and the lower shell (22) is provided with a plurality of reinforcing blocks (9).

4. The novel heating element of an electric hot water bag according to claim 3, characterized in that: Each of the reinforcing blocks (8) is provided with a positioning groove (10) adapted to the heating element (1), and each of the reinforcing blocks (9) is provided with a positioning groove (11) adapted to the heating element (1).

5. The novel heating element of an electric hot water bag according to claim 2, characterized in that: Each of the hooks (6) is provided with a guide slope (12).

6. A novel electric hot water bag heating element according to any one of claims 1 or 2, characterized in that: The mounting body (3) is provided with connecting ears (13) on both sides, and the connecting ears (13) are provided with positioning holes (14). The heating element (1) passes through the positioning holes (14), and the outer shell (2) is provided with a support part (5) for supporting the mounting body (3).

7. A novel electric hot water bag heating element according to any one of claims 1 or 2, characterized in that: The heating element (1) is connected to a power connector (15) via a wire, and the power connector (15) is electrically connected to the thermostat.

8. A novel electric hot water bag heating element according to any one of claims 1 or 2, characterized in that: The surface of the heating element (1) is coated with a primer (16), the surface of the primer (16) is coated with a water-based anti-rust coating (17), and the surface of the water-based anti-rust coating (17) is coated with a protective layer (18).

9. A novel electric hot water bag heating element according to any one of claims 1 or 2, characterized in that: The outer shell (2) is made of polypropylene.

10. The novel electric hot-water bag heating element according to claim 8, characterized in that: The protective layer (18) is made of a thermally conductive material.

Citation Information

Patent Citations

  • Heating body for hot-water bag

    CN219166858U