Ceramic heater for heating water

Abstract

The utility model discloses a ceramic heater for heating water, which comprises a cylindrical outer shell and an inner shell, tungsten slurry heating circuits are arranged on the opposite side surfaces of the outer shell and the inner shell, and two groups of electrifying components respectively connected with two ends of the tungsten slurry heating circuits are arranged on the outer side surface of the outer shell. A spiral protrusion is arranged on the inner side face of the inner shell, and a plurality of hemispherical protrusions are arranged on the upper side face and the lower side face of the spiral protrusion. The utility model has the advantage of high heating efficiency.

Description

Technical Field

[0001] This utility model belongs to the technical field of ceramic heaters and relates to a ceramic heater for water heating. Background Technology

[0002] Currently, water heating devices mainly use metal heating tubes as heat sources. Although this traditional design is widely used, it has problems such as uneven heat distribution, local overheating, and low energy efficiency during the heating process. At the same time, metal materials are prone to corrosion when used in water for a long time, which further reduces the life of the equipment. In addition, since the metal is in direct contact with water, there are also potential safety hazards such as leakage and electric shock.

[0003] Chinese utility model patent CN203880914U discloses a high-speed heater, including a heater housing and a heating component disposed within the heater housing. The heating component includes a heating conduit through which the heated medium passes. An insulating film is wrapped around the outside of the heating conduit, and a ceramic protective tube is sleeved on the outside of the insulating film. A heating element is disposed between the insulating film and the ceramic protective tube. A water outlet connector and a water inlet connector are respectively connected to both ends of the heating conduit. This technical solution uses a ceramic protective tube to insulate the heating element, preventing the ceramic protective tube from breaking and leaking electricity even when the heating element undergoes slight deformation. Furthermore, the ceramic protective tube can effectively withstand the high temperature generated by the heating element during use. However, this technical solution has a limited contact area with the water flow, which may lead to low heating efficiency. Utility Model Content

[0004] To address the aforementioned problems, this invention proposes a ceramic heater for water heating, which effectively solves the issues in the prior art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A ceramic heater for water heating includes a cylindrical outer shell and an inner shell. A tungsten paste heating circuit is provided on the opposite sides of the outer shell and the inner shell. Two sets of energizing components are provided on the outer side of the outer shell and respectively connected to the two ends of the tungsten paste heating circuit. A spiral protrusion is provided on the inner side of the inner shell, and multiple hemispherical protrusions are provided on the upper and lower sides of the spiral protrusion.

[0006] Furthermore, the power-conducting component includes an electrode plate disposed within the housing, a power-conducting wire disposed on the outer side of the electrode plate, and a terminal block disposed at the end of the power-conducting wire away from the electrode plate, wherein the electrode plate is in contact with the end of the tungsten paste heating circuit.

[0007] Furthermore, the energized conductor includes a nickel wire conductor and a Teflon sleeve covering the outer side of the nickel wire conductor, and the nickel wire conductor is in contact with the electrode plate.

[0008] Furthermore, a stepped protrusion is provided at the upper end of the outer shell, and an annular groove is formed between the stepped protrusion and the inner shell. A high-temperature resistant silicone pad is provided on the inner side of the annular groove.

[0009] Furthermore, a disc protrusion is provided on the outer surface of the outer casing, and the disc protrusion is located below the power-conducting wire.

[0010] Furthermore, both the outer shell and the inner shell are made of alumina ceramic.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] This invention extends the flow path of water within the ceramic heating element and increases the contact area between the water and the ceramic heating element through spiral protrusions and hemispherical protrusions, thereby improving the heating efficiency of the ceramic heating element for water. The stepped protrusions and high-temperature resistant silicone pads achieve a sealed connection between the ceramic heating element and the water interface, ensuring the reliability of the ceramic heating element during use. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a top view of the present invention.

[0015] In the figure: 1. Inner shell; 2. Outer shell; 201. Disc protrusion; 202. Stepped protrusion; 3. Tungsten paste heating circuit; 4. Electrode sheet; 5. Power-carrying wire; 6. High-temperature resistant silicone pad; 7. Annular groove; 8. Spiral protrusion; 801. Hemispherical protrusion; 9. Wiring terminal. Detailed Implementation

[0016] 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.

[0017] like Figure 1 , Figure 2As shown, a ceramic heater for water heating includes a cylindrical outer shell 2 and an inner shell 1. The outer shell 2 includes two semi-cylindrical shells, which can be fitted together to form a complete cylinder. Tungsten paste heating circuits 3 are provided on the opposite sides of the outer shell 2 and the inner shell 1. Two sets of energizing components connected to the two ends of the tungsten paste heating circuits 3 are provided on the outer side of the outer shell 2. A spiral protrusion 8 is provided on the inner side of the inner shell 1. Multiple hemispherical protrusions 801 are integrally formed on the upper and lower sides of the spiral protrusion 8.

[0018] In this embodiment, the power-conducting component includes an electrode plate 4 disposed inside the housing 2, a power-conducting wire 5 welded to the outer side of the electrode plate 4, and a terminal 9 installed at the end of the power-conducting wire 5 away from the electrode plate 4. The electrode plate 4 is in contact with the end of the tungsten paste heating circuit 3.

[0019] In this embodiment, the energized conductor 5 includes a nickel wire conductor and a Teflon sleeve covering the outer side of the nickel wire conductor. The nickel wire conductor is in contact with the electrode plate 4.

[0020] In this embodiment, a stepped protrusion 202 is integrally formed on the upper end of the outer shell 2, and an annular groove 7 is formed between the stepped protrusion 202 and the inner shell 1. A high-temperature resistant silicone pad 6 is bonded to the inner side of the annular groove 7 by high-temperature resistant adhesive.

[0021] In this embodiment, a disc protrusion 201 is integrally formed on the outer side of the outer shell 2, and the disc protrusion 201 is located below the power-conducting wire 5.

[0022] In this embodiment, both the outer shell 2 and the inner shell 1 are made of alumina ceramic.

[0023] During installation, the operator prints the tungsten paste heating circuit 3 on the opposite sides of the inner housing 1 and the outer housing 2. Simultaneously, the spiral protrusion 8 is placed inside the inner housing 1. Then, the outer housing 2, inner housing 1, and spiral protrusion are fixedly connected as a single unit through high-temperature sintering. After sintering, the operator fixes the electrode plate 4 inside the outer housing 2 and solders the power-carrying wire 5 to the outer surface of the electrode plate 4. Finally, the terminal 9 is connected to an external power source. In use, the power-carrying component supplies power to the tungsten paste heating circuit 3, causing it to heat up and conduct electricity. The water flow is heated by heat conduction through the outer shell 2, inner shell 1, and spiral protrusion 8. The spiral protrusion 8 and hemispherical protrusion 801 improve the flow path of the water in the ceramic heating body and the contact area with the ceramic heating body, thereby improving the heating efficiency of the ceramic heating body on the water flow. At the same time, the ceramic heating body can be connected to the water flow interface through the annular groove 7, and the sealing of the connection between the ceramic heating body and the water flow interface is ensured by the high-temperature resistant silicone pad 6. In addition, the high-temperature resistant silicone pad 6 and the high-temperature resistant adhesive are both made of harmless materials to ensure the safety of the ceramic heating body.

[0024] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A ceramic heater for water heating, comprising a cylindrical outer shell and an inner shell, characterized in that: The outer shell and the inner shell are provided with tungsten paste heating circuits on opposite sides. The outer shell has two sets of energized components that are respectively connected to the two ends of the tungsten paste heating circuit. The inner shell has a spiral protrusion on its inner side, and the spiral protrusion has multiple hemispherical protrusions on its upper and lower sides.

2. The ceramic heater for water heating according to claim 1, characterized in that: The power-conducting component includes an electrode plate disposed within the housing, a power-conducting wire disposed on the outer side of the electrode plate, and a terminal block disposed at the end of the power-conducting wire away from the electrode plate. The electrode plate is in contact with the end of the tungsten paste heating circuit.

3. A ceramic heater for water heating according to claim 2, characterized in that: The energized conductor includes a nickel wire and a Teflon sleeve covering the outer side of the nickel wire, and the nickel wire is in contact with the electrode plate.

4. A ceramic heater for water heating according to claim 1, characterized in that: The upper end of the outer shell is provided with a stepped protrusion, and an annular groove is formed between the stepped protrusion and the inner shell. A high-temperature resistant silicone pad is provided on the inner side of the annular groove.

5. A ceramic heater for water heating according to claim 1, characterized in that: The outer surface of the outer casing is provided with a disc protrusion, which is located below the power-carrying wire.

6. A ceramic heater for water heating according to claim 1, characterized in that: Both the outer shell and the inner shell are made of alumina ceramic.

Images