Thick-film round tube heater

By using a thick-film round tube heater with stainless steel heating tubes and an aluminum conductive layer, the problem of odor during the heating process has been solved, achieving efficient and odorless heating and extending the service life of the equipment.

CN224470459UActive Publication Date: 2026-07-07WENZHOU XINDE ELECTRICAL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WENZHOU XINDE ELECTRICAL TECH CO LTD
Filing Date
2025-08-12
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

Existing thick-film circular tube heaters have problems with odor generation during the heating process due to the use of silicone material for water flow.

Method used

Using stainless steel heating tubes and aluminum conductive layers, combined with temperature control components and temperature sensors, it ensures that no odor is produced during the heating process, and extends the life of the thick film heating layer through the high heat transfer efficiency of aluminum.

Benefits of technology

This achieves odorless operation during heating while improving heating efficiency and extending equipment lifespan, ensuring precise and safe temperature control.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of heater discloses a kind of thick film round tube heater, including round tube base body, the round tube base body outer wall is fixedly connected with the uniformly distributed thick film heating layer, the round tube base body middle is penetrated and is provided with heating pipe, the round tube base body inner wall is fixedly connected with conduction layer, the round tube base body top is provided with temperature control component, the temperature control component includes main temperature controller, the main temperature controller is fixedly connected with round tube base body top left side. In the utility model, by making water inlet pipe, flow to heating pipe, by the temperature set by electric control panel, the corresponding temperature of thick film heating layer is emitted, then conduction layer transmits heat to heating pipe, the water in heating pipe is heated, since heating pipe is stainless steel material, the process of heating water does not appear peculiar smell, the temperature emitted by main temperature controller to thick film heating layer is limited temperature, temperature is monitored in real time and accurately controls heating state.
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Description

Technical Field

[0001] This utility model relates to the field of heater technology, specifically a thick film circular tube heater. Background Technology

[0002] Thick film cylindrical tube heaters are heating elements made by printing thick film heating material onto the surface of a metal cylindrical tube. They utilize the thick film coating to generate heat when energized, and conduct heat through the cylindrical tube. They are characterized by high thermal efficiency, rapid heating, and small size, and are suitable for liquid heating, air heating, and other applications. They are also durable and safe.

[0003] Thick-film round tube heaters are widely used in home appliances, such as instant water heaters, coffee machines, and water dispensers, to quickly heat liquids. They are also used in industrial equipment, such as pipeline heating and air heating systems. Their high-efficiency heating and compact design make them suitable for various scenarios that require rapid temperature control, improving equipment energy efficiency and ease of use.

[0004] Existing thick-film circular tube heaters have the following problems: when using silicone material for water flow, the water will produce an odor during heating. To address these issues, a new thick-film circular tube heater is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a thick film circular tube heater that solves the problem of odor generation during heating caused by using silicone material for water flow in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a thick film circular tube heater, comprising a circular tube substrate, wherein a uniformly distributed thick film heating layer is fixedly connected to the outer wall of the circular tube substrate, a heating tube is provided through the middle of the circular tube substrate, a conductive layer is fixedly connected to the inner wall of the circular tube substrate, and a temperature control component is provided at the top of the circular tube substrate.

[0007] By adopting the above technical solution, the thick film heating layer emits the corresponding temperature, and the conductive layer conducts the heat to the heating tube to heat the water. The heating tube is made of stainless steel, so that no odor will be produced during the heating process.

[0008] As a further description of the above technical solution: the temperature control component includes a main temperature controller, which is fixedly connected to the top left side of the circular tube base.

[0009] By adopting the above technical solution, the heating temperature of the device is limited by the temperature control component.

[0010] As a further description of the above technical solution: a water outlet pipe is fixedly connected to the left side of the circular tube base, and the water outlet pipe is fixedly connected to the left end of the heating tube. A temperature sensor is fixedly connected through the middle of the water outlet pipe.

[0011] By adopting the above technical solution, the temperature sensor monitors the final temperature after heating.

[0012] As a further description of the above technical solution: a water inlet pipe is fixedly connected to the right side of the circular tube base, and the water inlet pipe is fixedly connected to the right end of the heating tube. A temperature sensor 2 is fixedly connected through the middle of the water inlet pipe.

[0013] By adopting the above technical solution, temperature sensor 2 monitors the initial heating temperature of water entering the heating zone.

[0014] As a further description of the above technical solution: the main temperature controller is electrically connected to the thick film heating layer.

[0015] By adopting the above technical solution, the thick film heating layer is protected by the main temperature controller and the fuse.

[0016] As a further description of the above technical solution: the heating tube has a spiral structure.

[0017] By adopting the above technical solution, the spiral structure extends the heating time and ensures the heating effect.

[0018] As a further description of the above technical solution: the circular tube substrate is tightly bonded to the conductive layer.

[0019] By adopting the above technical solution and through interference fit, the installation is made secure.

[0020] As a further description of the above technical solution: the circular tube substrate is made of stainless steel, and the conductive layer is made of aluminum.

[0021] By adopting the above technical solutions, aluminum provides better heat transfer performance.

[0022] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0023] 1. The present invention provides a thick film circular tube heater, which sets the temperature by the electronic control board, so that the thick film heating layer emits the corresponding temperature. Then the conductive layer conducts the heat to the heating tube to heat the water inside the heating tube. Since the heating tube is made of stainless steel, no odor will be produced during the heating process. At the same time, the life of the thick film heating layer is improved by the heat conduction of aluminum.

[0024] 2. The thick film circular tube heater provided by this utility model limits the temperature emitted by the thick film heating layer through the main temperature controller, monitors the temperature in real time and accurately controls the heating state, which can not only ensure that the heating temperature is stable within the set range to meet the use requirements, but also trigger overheat protection when the temperature is abnormal, to prevent equipment damage, medium hazards and circuit risks. Attached Figure Description

[0025] Figure 1 This is a perspective view of the overall structure of this utility model;

[0026] Figure 2 This is a schematic diagram of the heating element of this utility model;

[0027] Figure 3 This is a schematic diagram of the conductive layer of this utility model.

[0028] In the diagram: 1. Circular tube substrate; 2. Thick film heating layer; 3. Temperature sensor one; 4. Water outlet pipe; 5. Main thermostat; 6. Conductive layer; 7. Water inlet pipe; 8. Temperature sensor two; 9. Heating tube. Detailed Implementation

[0029] 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.

[0030] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings.

[0031] Combination Figure 1-3 A thick-film circular tube heater includes a circular tube base 1, with a uniformly distributed thick-film heating layer 2 fixedly connected to the outer wall of the circular tube base 1 for heating. A heating tube 9 is installed through the middle of the circular tube base 1, through which water flows and is heated. The stainless steel material prevents odors from appearing during the water heating process. A conductive layer 6 is fixedly connected to the inner wall of the circular tube base 1, which transfers the heat emitted by the thick-film heating layer 2 to the heating tube 9. A temperature control component is installed at the top of the circular tube base 1.

[0032] Combination Figure 2 The temperature control component includes a main temperature controller 5, which is fixedly connected to the top left side of the round tube base 1. The main temperature controller 5 limits the temperature emitted by the thick film heating layer 2, monitors the temperature in real time, and precisely controls the heating state.

[0033] Combination Figure 1-3A water outlet pipe 4 is fixedly connected to the left side of the round tube base 1, and the water outlet pipe 4 is fixedly connected to the left end of the heating pipe 9. A temperature sensor 3 is fixedly connected through the middle of the water outlet pipe 4. The temperature sensor 3 monitors the final temperature after heating. A water inlet pipe 7 is fixedly connected to the right side of the round tube base 1, and the water inlet pipe 7 is fixedly connected to the right end of the heating pipe 9. A temperature sensor 8 is fixedly connected through the middle of the water inlet pipe 7. The temperature sensor 8 monitors the initial heating temperature of the water entering the heating area. The main thermostat 5 is electrically connected to the thick film heating layer 2. The heating pipe 9 has a spiral structure, which can extend the heating time and ensure the heating effect. The round tube base 1 and the conductive layer 6 are tightly fitted together. Through interference fit, the installation is firm. The round tube base 1 is made of stainless steel, and the conductive layer 6 is made of aluminum. Aluminum provides better heat transfer effect. The conductive layer 6 is installed by casting or low temperature assembly. During casting, the thick film heating layer 2 is first heated to 600 degrees to prevent the thick film heating layer 2 from heating up too quickly and being damaged.

[0034] Working principle: Water enters the heating tube 9 through the water inlet pipe 7. The main thermostat 5 limits the temperature emitted by the thick film heating layer 2. Then, the conduction layer 6 conducts heat to the heating tube 9 to heat the water inside the heating tube 9. Since the heating tube 9 is made of stainless steel, no odor will be produced during the water heating process. The main thermostat 5 limits the temperature emitted by the thick film heating layer 2, monitors the temperature in real time, and accurately controls the heating state.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0036] 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. A thick-film circular tube heater, comprising a circular tube substrate (1), characterized in that: The outer wall of the circular tube substrate (1) is fixedly connected with a uniformly distributed thick film heating layer (2), a heating tube (9) is provided through the middle of the circular tube substrate (1), a conductive layer (6) is fixedly connected to the inner wall of the circular tube substrate (1), and a temperature control component is provided on the top of the circular tube substrate (1).

2. A thick-film circular tube heater according to claim 1, characterized in that: The temperature control assembly includes a main temperature controller (5), which is fixedly connected to the top left side of the round tube base (1).

3. A thick-film circular tube heater according to claim 1, characterized in that: The left side of the circular tube base (1) is fixedly connected to a water outlet pipe (4), and the water outlet pipe (4) is fixedly connected to the left end of the heating pipe (9). A temperature sensor (3) is fixedly connected through the middle of the water outlet pipe (4).

4. A thick-film circular tube heater according to claim 1, characterized in that: The round tube base (1) is fixedly connected to the right side of the water inlet pipe (7), and the water inlet pipe (7) is fixedly connected to the right end of the heating pipe (9). A temperature sensor (8) is fixedly connected through the middle of the water inlet pipe (7).

5. A thick-film circular tube heater according to claim 2, characterized in that: The main temperature controller (5) is electrically connected to the thick film heating layer (2).

6. A thick-film circular tube heater according to claim 1, characterized in that: The heating tube (9) has a spiral structure.

7. A thick-film circular tube heater according to claim 1, characterized in that: The circular tube substrate (1) is closely attached to the conductive layer (6).

8. A thick-film circular tube heater according to claim 1, characterized in that: The circular tube substrate (1) is made of stainless steel, and the conductive layer (6) is made of aluminum.