CN202979327U - PTC aluminum heating element - Google Patents

Abstract

The utility model relates to the field of PTC heating elements, and discloses a PTC aluminum heating element. The PTC aluminum heating element described in the utility model includes a PTC heating element, an electrode sheet and a tubular aluminum profile; the electrode sheet and the PTC heating element are both located inside the aluminum profile, and the electrode sheet is attached to the upper and lower surfaces of the PTC heating element; the outer surface of the PTC heating element with the electrode sheet attached is wrapped with insulating paper; the electrode sheet is connected to a high-temperature wire. The aluminum profile is a semi-cylindrical tube. The insulating paper is insulating yellow paper. A sleeve is provided at the connection between the electrode sheet and the wire. The sleeve is any one of a heat shrink sleeve, a silicone sleeve or an inner fiber and outer rubber sleeve. The PTC aluminum heating element described in the utility model has the characteristics of high thermal conductivity and can meet the needs of high-power heating products.

Description

PTC aluminum heating element

technical field

The utility model relates to the field of PTC heating elements, in particular to a heating element of a PTC aluminum part.

Background technique

The PTC heating element is a ceramic material that can automatically control the temperature. When energized, because the resistance at room temperature is relatively small, the initial current is relatively large, which can make the PTC heating element heat up quickly, causing the resistance value to increase rapidly and enter the transition zone. At this moment, the current that can pass through the PTC heating element is very small. , so that the surface temperature of the PTC heating element is moderately maintained at a constant value. This constant temperature is only related to the Curie temperature of the PTC heating element and the applied voltage, and basically has nothing to do with the ambient temperature. Taking advantage of this feature, it is widely used in real life, and it is directly used as a heat source, such as hair straighteners, hair curlers, heaters, thermotherapy instruments, electric heating plates, etc. However, these products use relatively low power, generally below 5000W, which cannot meet the requirements of high-power industrial water heaters. At the same time, the PTC heating element in use will produce harmful substances such as silicon and lead due to the peeling off of the skin after heating.

Contents of the invention

The purpose of the embodiment of the utility model is to provide a PTC aluminum heating element, which has the characteristics of high thermal conductivity and can meet the demand of high-power heating products.

A PTC aluminum heating element provided by an embodiment of the utility model includes a PTC heating element, an electrode sheet and a tubular aluminum profile; both the electrode sheet and the PTC heating element are located inside the aluminum profile, and the electrode sheet It is pasted on the upper and lower surfaces of the PTC heating element; the surface of the PTC heating element pasted with electrode sheets is wrapped with insulating paper; the electrode sheets are connected with high-temperature wires.

Optionally, the aluminum profile is in the shape of a semi-cylindrical tube.

Optionally, the insulating paper is insulating yellow paper.

Optionally, a sleeve is sleeved at the connection between the electrode piece and the wire.

Optionally, the sleeve is any one of a heat shrinkable sleeve, a silicone sleeve, or a sleeve with inner fiber and outer rubber.

It can be seen from the above that by applying the technical solution of the embodiment of the utility model, the PTC heating element is installed in the tubular aluminum profile, and the upper and lower surfaces of the PTC heating element are pasted with electrode sheets, and then the electrode sheets pass through the high temperature resistant wire and The external power supply is connected, so that the heat dissipation area of the PTC heating element increases during the heating process, so that the heating power is greatly improved, and at the same time, it also solves the problem of silicon and lead caused by the shedding of the PTC heating element after direct heating. and other hazardous substances.

Description of drawings

The accompanying drawings described here are used to provide a further understanding of the utility model, constitute a part of the application, and do not constitute an improper limitation of the utility model. In the accompanying drawings:

Fig. 1 is the structural front view of a kind of PTC aluminum heating element provided by the utility model;

Fig. 2 is a structural rear view of a PTC aluminum heating element provided by the utility model.

Detailed ways

The utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments. The schematic embodiments and descriptions of the utility model are used to explain the utility model, but not as a limitation to the utility model.

As shown in Figure 1 and Figure 2, the PTC aluminum heating element shown in the utility model includes a PTC heating element 1, an electrode sheet 2 and a tubular aluminum profile 3, the aluminum profile 3 is semi-cylindrical, and the PTC heating Both the body 1 and the electrode sheet are located inside the aluminum profile 3, and the electrode sheet 2 is attached to the upper and lower surfaces of the PTC heating element 1, and the electrode sheet 2 is derived through a high-temperature resistant wire 4, and the electrode sheet 2 is attached to the upper and lower surfaces of the PTC heating element 1. The connection between sheet 2 and the wire 4 is covered with a sleeve 5, and the sleeve 5 is any one of heat shrinkable sleeve, silicone sleeve or inner fiber outer rubber sleeve, which makes the connection more firm and difficult to disconnect . In addition, the outer surface of the PTC heating element 1 pasted with the electrode sheet 2 is wrapped with insulating paper 6 to play a very good insulating effect, and insulating yellow paper is generally used.

In the PTC aluminum heating element described in the utility model, the PTC heating element 1 is packed into a semi-cylindrical tubular aluminum profile 3, and then connected through the electrode sheet 2 with a wire 4, that is, when the wire 4 is connected After the power supply, the electrode sheet 2 also conducts electricity to the PTC heating element 1 immediately, and the PTC heating element 1 dissipates heat to the surroundings through the aluminum profile 3 during the process of energizing and heating. 3 Not only has an excellent heat conduction effect, but its shape also increases the area of heat dissipation, so that the PTC heating element 1 conducts heat in a timely and rapid manner, greatly improving the heat conduction power, and meeting the demand for high power in the industry. At the same time, it also avoids the problems of shedding of the skin caused by the direct heat transfer of the PTC heating element 1 and the generation of harmful substances such as silicon and lead.

The technical solutions provided by the embodiments of the present invention have been introduced in detail above. In this paper, specific examples have been used to illustrate the principles and implementation methods of the embodiments of the present invention. The descriptions of the above embodiments are only applicable to help understand the present invention. The principle of the embodiment; at the same time, for those of ordinary skill in the art, according to the embodiment of the present invention, there will be changes in the specific implementation and the scope of application. Utility model restrictions.

Claims (5)

1. A PTC aluminum heating element, characterized in that: Including PTC heating element, electrode sheet and tubular aluminum profile; Both the electrode sheet and the PTC heating element are located inside the aluminum profile, and the electrode sheet is attached to the upper and lower surfaces of the PTC heating element; Insulating paper is wrapped on the surface of the PTC heating body with the electrode sheet attached; The electrode sheets are connected with high temperature resistant wires. 2. The PTC aluminum heating element according to claim 1, characterized in that: The aluminum profile is in the shape of a semi-cylindrical tube. 3. The PTC aluminum heating element according to claim 1, characterized in that: The insulating paper is insulating yellow paper. 4. The PTC aluminum heating element according to claim 1, characterized in that: The connection between the electrode piece and the wire is covered with a sleeve. 5. The PTC aluminum heating element according to claim 4, characterized in that: The sleeve is any one of a heat shrinkable sleeve, a silicone sleeve or a sleeve with inner fiber and outer rubber.

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