Dry-burning-resistant liquid heating ceramic tube

Abstract

The utility model particularly relates to an anti-dry-burning liquid heating ceramic tube which comprises a liquid heating ceramic tube body, a first lead, a second lead and an automatic bounce type temperature control switch, and the liquid heating ceramic tube body comprises a blank tube and an anti-dry-burning ceramic substrate wrapped on the periphery of the blank tube. A heating circuit and a temperature sensing circuit are arranged on the inner side face of the anti-dry-burning ceramic substrate, the temperature sensing circuit is connected with the heating circuit, and the automatic bounce type temperature control switch is arranged on the anti-dry-burning ceramic substrate and connected with the temperature sensing circuit. The anti-dry-burning liquid heating ceramic tube has the advantages of being high in temperature rising speed and temperature compensation speed, the heating effect can be fully utilized, and therefore high efficiency and energy conservation are achieved, and by means of heating work of the liquid heating ceramic tube body and a safe cut-off mechanism of the automatic bouncing type temperature control switch, the liquid heating ceramic tube can be heated quickly. Temperature control and safety protection in the heating process are achieved, dry burning prevention protection can be effectively carried out, and the safety and reliability of electric appliance use are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of heating elements, in particular to a dry-burning-proof liquid heating ceramic tube. Background Art

[0002] Ceramic heaters are common liquid heaters. They use ceramic as a substrate and have the advantages of high temperature resistance, corrosion resistance, good thermochemical stability, long service life, and high insulation strength. They have been widely used. However, when using existing liquid heating ceramic tubes, it is easy to dry burn after the liquid is reduced. In order to prevent dry burning, ceramic heaters usually need to be equipped with multiple temperature sensors. However, during production, ceramic heaters in the prior art often have complex structures and low thermal efficiency utilization, which needs to be further improved. Summary of the invention

[0003] In order to overcome the shortcomings and deficiencies in the prior art, the purpose of the utility model is to provide a dry-burning proof liquid heating ceramic tube, which can achieve high efficiency and energy saving through the heating work of the liquid heating ceramic tube body and the safety cut-off mechanism of the automatic bounce temperature control switch, and realizes temperature control and safety protection during the heating process, and can more effectively perform dry-burning protection, ensuring the safety and reliability of the use of electrical appliances.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a dry-burning prevention liquid heating ceramic tube, comprising a liquid heating ceramic tube body, a first wire, a second wire and an automatic pop-up temperature control switch, the liquid heating ceramic tube body comprising a blank tube and an anti-dry-burning ceramic substrate coated on the outer periphery of the blank tube, the inner side of the anti-dry-burning ceramic substrate is provided with a heating circuit and a temperature sensing circuit, the temperature sensing circuit is connected to the heating circuit, and the automatic pop-up temperature control switch is arranged on the anti-dry-burning ceramic substrate and connected to the temperature sensing circuit.

[0005] Furthermore, a heating circuit area, a first electrode and a second electrode are provided on the inner side of the anti-dry-burning ceramic substrate, and the heating circuit area includes a heating circuit heating area and two heating circuit cold areas; the head end and the end of the heating circuit in the heating circuit heating area respectively extend to the two heating circuit cold areas and are respectively connected to the first electrode and the second electrode; the temperature sensing circuit is located between the first electrode and the second electrode and above the heating circuit heating area, and the head end and the end of the temperature sensing circuit are respectively connected to the heating circuit extending to the two heating circuit cold areas.

[0006] Furthermore, the first electrode, the second electrode and the two cold zones of the heating circuit are all arranged above the heating zone of the heating circuit.

[0007] Furthermore, the first electrode, the second electrode, the two cold zones of the heating circuit and the temperature sensing circuit are all located on the upper part of the anti-dry-burning ceramic substrate.

[0008] Furthermore, a liquid inlet hole is provided on the upper portion of the outer peripheral wall of the liquid heating ceramic tube body, and the liquid inlet hole is located above the heating area of ​​the heating circuit.

[0009] Furthermore, a temperature sensing circuit distribution area is provided on the inner side of the anti-dry-burning ceramic substrate, the temperature sensing circuit is arranged in the temperature sensing circuit distribution area, a blank area is provided in the middle of the lower end of the temperature sensing circuit distribution area, and the liquid inlet hole is opened in the area of ​​the blank area corresponding to the outer peripheral wall of the liquid heating ceramic tube body.

[0010] Furthermore, the first wire and the second wire are spaced apart, the first wire is welded to the outer side of the anti-dry-burning ceramic substrate through the first wire welding electrode, and the second wire is welded to the outer side of the anti-dry-burning ceramic substrate through the second wire welding electrode.

[0011] Furthermore, the outer peripheral surface of the liquid heating ceramic tube body is sleeved with a flange.

[0012] Furthermore, the automatic pop-up temperature control switch is located above the flange.

[0013] Furthermore, the liquid inlet hole is located below the flange.

[0014] The beneficial effects of the utility model are: the anti-dry-burning liquid heating ceramic tube of the utility model has the advantages of fast heating speed and fast temperature compensation, and the heating effect can be fully utilized, thereby achieving high efficiency and energy saving; by arranging an automatic pop-up temperature control switch on the outer surface of the liquid heating ceramic tube body, temperature control and overheating protection are played; the anti-dry-burning liquid heating ceramic tube realizes temperature control and safety protection during the heating process through the heating work of the liquid heating ceramic tube body and the safety cut-off mechanism of the automatic pop-up temperature control switch, and can perform anti-dry-burn protection more effectively, ensuring the safety and reliability of the use of electrical appliances. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic structural diagram of the anti-dry-burning ceramic substrate of the utility model before curling.

[0016] Figure 2 It is a structural schematic diagram of the utility model when the anti-dry-burning ceramic substrate is partially rolled onto the blank tube.

[0017] Figure 3 It is a three-dimensional structural schematic diagram of the anti-dry-burning liquid heating ceramic tube of the utility model.

[0018] Figure 4 It is a structural schematic diagram of the anti-dry-burning liquid heating ceramic tube of the utility model from another perspective.

[0019] Figure 5 It is a perspective schematic diagram showing the direction of water flow of the anti-dry-burning liquid heating ceramic tube of the utility model.

[0020] The accompanying drawings are marked as follows: 11, anti-dry-burning ceramic substrate; 12, heating area of ​​heating circuit; 13, cold area of ​​heating circuit; 14, first electrode; 15, second electrode; 16, temperature sensing circuit; 17, blank tube; 18, automatic pop-up temperature control switch; 19, flange; 20, liquid inlet hole; 21, liquid heating ceramic tube body; 22, first wire; 23, second wire; 24, first wire welding electrode; 25, second wire welding electrode; 26, blank area. DETAILED DESCRIPTION

[0021] In order to facilitate the understanding of those skilled in the art, the present invention is further described below in conjunction with embodiments and drawings. The contents mentioned in the implementation modes are not intended to limit the present invention.

[0022] See also Figure 1-5 A dry-burning prevention liquid heating ceramic tube comprises a liquid heating ceramic tube body 21, a first wire 22, a second wire 23 and an automatic pop-up temperature control switch 18. The liquid heating ceramic tube body 21 comprises a blank tube 17 and an anti-dry-burning ceramic substrate 11 coated on the outer periphery of the blank tube 17. A heating circuit and a temperature sensing circuit 16 are arranged on the inner side of the anti-dry-burning ceramic substrate 11. The temperature sensing circuit 16 is connected to the heating circuit. The automatic pop-up temperature control switch 18 is arranged on the anti-dry-burning ceramic substrate 11 and connected to the temperature sensing circuit 16.

[0023] The anti-dry-burning liquid heating ceramic tube of the utility model has the advantages of fast heating speed and fast temperature compensation, and the heating effect can be fully utilized, thereby achieving high efficiency and energy saving; by arranging an automatic pop-up temperature control switch 18 on the outer surface of the liquid heating ceramic tube body 21, temperature control and overheating protection are played; the anti-dry-burning liquid heating ceramic tube realizes temperature control and safety protection during the heating process through the heating work of the liquid heating ceramic tube body 21 and the safety cut-off mechanism of the automatic pop-up temperature control switch 18, and can perform anti-dry-burning protection more effectively, ensuring the safety and reliability of the use of the electrical appliance.

[0024] Furthermore, a heating circuit area, a first electrode 14 and a second electrode 15 are provided on the inner side of the anti-dry-burning ceramic substrate, and the heating circuit area includes a heating circuit heating area 12 and two heating circuit cold areas 13, and the head end and the end of the heating circuit of the heating circuit heating area 12 respectively extend to the two heating circuit cold areas 13 and are respectively connected to the first electrode 14 and the second electrode 15; the temperature sensing circuit 16 is located between the first electrode 14 and the second electrode 15 and above the heating circuit heating area 12, and the head end and the end of the temperature sensing circuit 16 are respectively connected to the heating circuit extending to the two heating circuit cold areas 13. When preparing the anti-dry-burning liquid heating ceramic tube of this embodiment, a heating circuit heating area 12, a first electrode 14, a second electrode 15, a temperature sensing circuit 16 and two heating circuit cold areas 13 are pre-arranged on one side of the anti-dry-burning ceramic substrate 11, and then the side of the anti-dry-burning ceramic substrate 11 provided with the circuit is wrapped around the outer periphery of the blank tube 17 as the inner side, and the anti-dry-burning ceramic substrate 11 is bonded to the blank tube 17 to obtain a liquid heating ceramic tube body 21. In this embodiment, the temperature sensing circuit 16 adopts a series design. The heating circuit includes a plurality of circuits designed in parallel, and the heating circuits in the heating area 13 of the heating circuit are densely distributed and are in the shape of repeatedly tortuous strips; the head ends and the ends of the plurality of circuits extend to the two heating circuit cold areas 13 respectively and are connected to the first electrode 14 and the second electrode 15 respectively.

[0025] Further, the first electrode 14, the second electrode 15 and the two heating circuit cold zones 13 are all arranged above the heating circuit heating zone 12. In this embodiment, the first electrode 14, the second electrode 15, the two heating circuit cold zones 13 and the temperature sensing circuit 16 are all located on the upper part of the anti-dry-burning ceramic substrate 11, and the two heating circuit cold zones 13 are respectively located at both ends of the upper part of the anti-dry-burning ceramic substrate 11.

[0026] Furthermore, a liquid inlet hole 20 is opened on the upper portion of the outer peripheral wall of the liquid heating ceramic tube body 21 , and the liquid inlet hole 20 is located above the heating area 12 of the heating circuit.

[0027] In this embodiment, the temperature sensing circuit 16 of the anti-dry-burning liquid heating ceramic tube is arranged above the heating zone 12 of the heating circuit. When the liquid water level drops below the temperature sensing circuit 16, the temperature of the anti-dry-burning liquid heating ceramic tube is sensed rapidly. When the temperature of the anti-dry-burning liquid heating ceramic tube rises to the temperature point of the automatic pop-up temperature control switch 18, the automatic pop-up temperature control switch 18 will automatically close the circuit and the anti-dry-burning liquid heating ceramic tube will stop working.

[0028] Furthermore, the inner side surface of the anti-dry-burning ceramic substrate 11 is provided with a temperature sensing circuit distribution area, the temperature sensing circuit 16 is arranged in the temperature sensing circuit distribution area, a blank area 26 is arranged in the middle of the lower end of the temperature sensing circuit distribution area, and the liquid inlet hole 20 is opened in the area of ​​the blank area 26 corresponding to the outer peripheral wall of the liquid heating ceramic tube body 21. The liquid inlet hole 20 of the liquid heating ceramic tube body 21 is arranged above the heating area 12 of the heating circuit, so that the liquid starts to be heated when it flows through the liquid heating ceramic tube 21 from the liquid inlet hole 20, so that the heat generated by the liquid heating ceramic tube body 21 can be more fully in contact with the liquid, the heating efficiency is higher, and the practicality is strong. In this embodiment, the temperature sensing circuit distribution area is in the shape of a convex character with a rectangular area missing in the middle of the lower end, and the rectangular area is the blank area 26, and the blank area 26 is not provided with a temperature sensing circuit 16.

[0029] Furthermore, the first wire 22 and the second wire 23 are arranged at intervals, the first wire 22 is welded to the outer side of the anti-dry-burning ceramic substrate 11 through the first wire welding electrode 22, and the second wire 23 is welded to the outer side of the anti-dry-burning ceramic substrate 11 through the second wire welding electrode 23.

[0030] Furthermore, the outer circumference of the liquid heating ceramic tube body 21 is sleeved with a flange 19. The automatic pop-up temperature control switch 18 is located above the flange 19. The liquid inlet hole 20 is located below the flange 19. In this embodiment, the liquid heating ceramic tube and the flange 19 are sealed with high temperature resistant ceramic glue, and the flange 19 plays the role of sealing, fixing, and preventing water leakage.

[0031] When the anti-dry-burning liquid heating ceramic tube of this embodiment is used, the liquid flows into the liquid heating ceramic tube body 21 from the liquid inlet hole 20, and the liquid is diverted from the liquid inlet hole 20 to the upper and lower directions. When the heating appliance is working and the anti-dry-burning liquid heating ceramic tube is connected to the power supply, the heating circuit in the anti-dry-burning liquid heating ceramic tube starts heating, that is, the liquid in the liquid heating ceramic tube body 21 is heated; when the liquid water level at the top of the anti-dry-burning liquid heating ceramic tube drops below the temperature sensing circuit 16, the anti-dry-burning liquid heating ceramic tube continues to be powered on and a dry-burning phenomenon (i.e., a temperature rise phenomenon) will occur. When the temperature of the liquid heating ceramic tube body 21 rises to the temperature point of the automatic pop-up temperature control switch 18, the automatic pop-up temperature control switch 18 will automatically close the circuit, and the anti-dry-burning liquid heating ceramic tube will stop working. The automatic pop-up temperature control switch 18 has the function of self-controlling constant surface temperature and overheating protection, thereby preventing the occurrence of dry-burning phenomenon. The anti-dry-burning liquid heating ceramic tube realizes temperature control and safety protection during the heating process through the heating work of the liquid heating ceramic tube body 21 and the safety cut-off mechanism of the automatic pop-up temperature control switch 18, and can perform anti-dry-burning protection in a timely and accurate manner, ensuring safety and reliability of use.

[0032] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the present invention is within the protection scope of the present invention.

Claims

1. A dry-burning-proof liquid heating ceramic tube, characterized in that: It includes a liquid heating ceramic tube body, a first wire, a second wire and an automatic pop-up temperature control switch. The liquid heating ceramic tube body includes a blank tube and an anti-dry-burning ceramic substrate wrapped around the outer periphery of the blank tube. The inner side of the anti-dry-burning ceramic substrate is provided with a heating circuit and a temperature sensing circuit. The temperature sensing circuit is connected to the heating circuit. The automatic pop-up temperature control switch is arranged on the anti-dry-burning ceramic substrate and connected to the temperature sensing circuit.

2. The anti-dry-burning liquid heating ceramic tube according to claim 1, characterized in that: The inner side of the anti-dry-burning ceramic substrate is provided with a heating circuit area, a first electrode and a second electrode, and the heating circuit area includes a heating circuit heating area and two heating circuit cold areas; the head end and the end of the heating circuit in the heating circuit heating area respectively extend to the two heating circuit cold areas and are respectively connected to the first electrode and the second electrode; the temperature sensing circuit is located between the first electrode and the second electrode and above the heating circuit heating area, and the head end and the end of the temperature sensing circuit are respectively connected to the heating circuit extending to the two heating circuit cold areas.

3. The anti-dry-burning liquid heating ceramic tube according to claim 2, characterized in that: The first electrode, the second electrode and the two cold zones of the heating circuit are all arranged above the heating zone of the heating circuit.

4. The anti-dry-burning liquid heating ceramic tube according to claim 3, characterized in that: The first electrode, the second electrode, the two heating circuit cold zones and the temperature sensing circuit are all located on the upper part of the anti-dry-burning ceramic substrate.

5. The anti-dry-burning liquid heating ceramic tube according to claim 2, characterized in that: A liquid inlet hole is provided on the upper portion of the outer peripheral wall of the liquid heating ceramic tube body, and the liquid inlet hole is located above the heating area of ​​the heating circuit.

6. The anti-dry-burning liquid heating ceramic tube according to claim 5, characterized in that: A temperature sensing circuit distribution area is provided on the inner side of the anti-dry burning ceramic substrate, the temperature sensing circuit is arranged in the temperature sensing circuit distribution area, a blank area is provided in the middle of the lower end of the temperature sensing circuit distribution area, and the liquid inlet hole is opened in the area of ​​the blank area corresponding to the outer peripheral wall of the liquid heating ceramic tube body.

7. The anti-dry-burning liquid heating ceramic tube according to claim 1, characterized in that: The first wire and the second wire are arranged at intervals, the first wire is welded to the outer side of the anti-dry-burning ceramic substrate through the first wire welding electrode, and the second wire is welded to the outer side of the anti-dry-burning ceramic substrate through the second wire welding electrode.

8. The anti-dry-burning liquid heating ceramic tube according to claim 5, characterized in that: The outer peripheral surface of the liquid heating ceramic tube body is sleeved with a flange.

9. The anti-dry-burning liquid heating ceramic tube according to claim 8, characterized in that: The automatic pop-up temperature control switch is located above the flange.

10. The anti-dry-burning liquid heating ceramic tube according to claim 9, characterized in that: The liquid inlet hole is located below the flange.

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