PTC liquid heater

Abstract

The utility model discloses a PTC (Positive Temperature Coefficient) liquid heater, which comprises a heater body, the heater body is provided with a pipe body and a PTC heating sheet, one side of the pipe body is provided with an extension part, the extension part is provided with an insertion hole, the PTC heating sheet is inserted into the insertion hole, an inner hole of the pipe body is provided with an anti-corrosion coating, and the anti-corrosion coating extends to the outer surface of the male connector and the inner surface of the female connector; the extension portion is arranged on one side of the tube body, the PTC heating piece is inserted in the extension portion, so that most heat can be transmitted to the tube body, the tube body heats liquid, the extension portion wraps the PTC heating piece, the contact area with air can be reduced, and heat loss is reduced. The inner wall of the pipe body is coated with the Teflon coating, the coating extends to the outer surface of the male connector and the inner surface of the female connector, liquid leakage caused by corrosion at the connecting position of the pipe bodies is avoided, heating efficiency is improved, and the service life of the pipe bodies is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of liquid heaters, and specifically relates to a PTC liquid heater. Background Art

[0002] When a liquid flows in a pipeline and the liquid needs to be heated, a heating device needs to be added to the pipe body. Ordinary fixed or attached types will have problems of low heating efficiency, which affects production efficiency. In addition, since most pipe bodies are made of aluminum alloy, which is an active metal, liquids containing acid, alkali, and salt water quality will corrode the aluminum alloy pipe wall, resulting in liquid pollution or short service life of the pipe body. To solve this problem, a PTC liquid heater is provided. Content of the Utility Model

[0003] In view of this, the technical problem to be solved by the utility model is to provide a PTC liquid heater to solve the problems of low liquid heating efficiency and easy corrosion of the pipe body in the prior art.

[0004] To solve the above technical problems, the utility model discloses a PTC liquid heater, including: a heater body; the heater body has a pipe body and a PTC heating sheet. An extension part is provided on one side of the pipe body, and a jack is provided on the extension part. The PTC heating sheet is inserted into the jack. A convex ring is provided at one end of the pipe body, a male connector is provided at one end of the convex ring, a female connector is provided at the other end of the pipe body, and an anti-corrosion coating is provided in the inner hole of the pipe body, and the anti-corrosion coating extends to the outer surface of the male connector and the inner surface of the female connector; the PTC heating sheet has a PTC ceramic heating component, positive and negative electrode plates adhered to both sides of the PTC ceramic heating component by silicone, wires are provided on the electrode plates, and a flexible insulating film is provided between the jack and the PTC heating sheet.

[0005] Further, the extension part has a supporting part and a base part. The upper end of the supporting part is connected to the pipe body. The supporting part is in an inverted trapezoid shape, and its lower end is connected to the base part. The bottom surface of the base part is flat.

[0006] Further, the cross-section of the jack is rectangular.

[0007] Further, the PTC heating sheet is composed of multiple PTC ceramic heating components connected in series.

[0008] Further, the outer diameter of the convex ring is equal to the outer diameter of the female connector.

[0009] Further, the anti-corrosion coating is a Teflon coating.

[0010] Compared with the prior art, the present application can obtain the following technical effects:

[0011] The present utility model provides an extension on one side of the tube body. A PTC heating sheet is inserted into the extension, so that most of the heat can be transferred to the tube body, and the tube body heats the liquid. Moreover, the extension wraps the PTC heating sheet, which can reduce the contact area with air and lower heat loss. The inner wall of the tube body is coated with a Teflon coating, and the coating extends to the outer surface of the male connector and the inner surface of the female connector, avoiding corrosion at the connection of the tube bodies and preventing liquid leakage. Thus, both the heating efficiency and the service life of the tube body are improved.

[0012] Of course, it is not necessary for any product implementing this application to achieve all the above-mentioned technical effects simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The drawings described herein are used to provide a further understanding of the present application and form a part of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation to the present application. In the drawings:

[0014] Figure 1 is a schematic diagram of a PTC liquid heater according to an embodiment of the present utility model;

[0015] Figure 2 is an exploded schematic diagram of a PTC liquid heater according to an embodiment of the present utility model.

[0016] REFERENCE SIGNS

[0017] Tube body 1, PTC heating sheet 2, Extension 3, Jack 4, Convex ring 5, Male connector 6, Female connector 7, Anticorrosion coating 8, PTC ceramic heating component 9, Electrode plate 10, Conducting wire 11, Insulating film 12, Supporting part 13, Base part 14. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The following will describe in detail the embodiments of the present application in conjunction with the drawings and embodiments, so as to fully understand how the present application uses technical means to solve technical problems and achieve the realization process of technical effects and implement accordingly.

[0019] Please refer to Figure 1 and Figure 2 , Figure 1 is a schematic diagram of a PTC liquid heater according to an embodiment of the present utility model; Figure 2 is an exploded schematic diagram of a PTC liquid heater according to an embodiment of the present utility model.

[0020] A PTC liquid heater, comprising: a heater body; the heater body has a tube body 1 and a PTC heating sheet 2, one side of the tube body 1 is provided with an extension part 3, the extension part 3 is provided with a jack 4, and the PTC heating sheet 2 is inserted into the jack 4. One end of the tube body 1 is provided with a convex ring 5, one end of the convex ring 5 is provided with a male connector 6, the other end of the tube body 1 is provided with a female connector 7, and the inner hole of the tube body 1 is provided with an anti-corrosion coating 8, and the anti-corrosion coating 8 extends to the outer surface of the male connector 6 and the inner surface of the female connector 7; the PTC heating sheet 2 has a PTC ceramic heating component 9, positive and negative electrode plates 10 adhered to both sides of the PTC ceramic heating component 9 by silica gel, wires 11 are provided on the electrode plates 10, and a flexible insulating film 12 is provided between the jack 4 and the PTC heating sheet 2.

[0021] The extension part 3 has a supporting part 13 and a base part 14. The upper end of the supporting part 13 is connected to the tube body 1. The supporting part 13 is trapezoidal in reverse, and its lower end is connected to the base part 14. The bottom surface of the base part 14 is flat; the cross-section of the jack 4 is rectangular; the PTC heating sheet 2 is composed of multiple PTC ceramic heating components 9 connected in series; the outer diameter of the convex ring 5 is equal to the outer diameter of the female connector 7; the anti-corrosion coating 8 is a Teflon coating.

[0022] In summary, in the present utility model, an extension part 3 is provided on one side of the tube body 1, and the PTC heating sheet 2 is inserted into the extension part 3, so that most of the heat can be transferred to the tube body 1, and the tube body 1 heats the liquid. Moreover, the extension part wraps the PTC heating sheet 2, which can reduce the contact area with the air and reduce heat loss; the inner wall of the tube body 1 is coated with a Teflon coating, and the coating extends to the outer surface of the male connector 6 and the inner surface of the female connector 7, avoiding corrosion at the connection of the tube body 1 and the tube body 1 and causing liquid leakage. Thus, both the heating efficiency is improved and the service life of the tube body 1 is extended.

[0023] The above description shows and describes several preferred embodiments of the present utility model. However, as mentioned above, it should be understood that the present utility model is not limited to the form disclosed herein, should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be changed within the scope of the inventive concept described herein through the above teachings or the technology or knowledge in the relevant field. And the changes and alterations made by those skilled in the art without departing from the spirit and scope of the present utility model should all be within the protection scope of the appended claims of the present utility model.

Claims

1. A PTC liquid heater, comprising: Heater body; The invention is characterized in that the heater body comprises a tube body and a PTC heating sheet, an extension portion is provided on one side of the tube body, a socket is provided on the extension portion, the PTC heating sheet is inserted into the socket, a convex ring is provided at one end of the tube body, a male joint is provided at one end of the convex ring, a female joint is provided at the other end of the tube body, an anti-corrosion coating is provided at the inner hole of the tube body, and the anti-corrosion coating extends to the outer surface of the male joint and the inner surface of the female joint; the PTC heating sheet comprises a PTC ceramic heating component, positive and negative electrode plates are adhered to the two sides of the PTC ceramic heating component by silicone, wires are provided on the electrode plates, and a soft insulating film is provided between the socket and the PTC heating sheet.

2. The PTC liquid heater according to claim 1, characterized in that: The extension part comprises a supporting part and a base part, the upper end of the supporting part is connected to the tube body, the supporting part is in an inverted trapezoidal shape, the lower end of the supporting part is connected to the base part, and the bottom surface of the base part is in a plane shape.

3. The PTC liquid heater according to claim 1, characterized in that: The cross section of the jack is rectangular.

4. The PTC liquid heater according to claim 1, characterized in that: The PTC heating plate is composed of a plurality of PTC ceramic heating components connected in series.

5. The PTC liquid heater according to claim 1, characterized in that: The outer diameter of the convex ring is equal to the outer diameter of the female joint.

6. The PTC liquid heater according to claim 1, characterized in that: The anti-corrosion coating is a Teflon coating.

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