A planar ceramic heating element with dual circuits

Abstract

The utility model discloses a planar ceramic heating body with dual circuits, including an alumina ceramic substrate, the alumina ceramic substrate is divided into a heating area and a wiring area, two layers of circuits, a heating circuit and a temperature control circuit, are printed on the alumina ceramic substrate, and a first temperature control circuit, a first heating circuit, a second heating circuit and a second temperature control circuit are fixedly connected in sequence from bottom to top on the wiring area. The utility model can perform heating or temperature control according to actual needs by printing two layers of circuits, a heating circuit and a temperature control circuit, on the alumina ceramic substrate, respectively, and has a reasonable structural design, so that heating and temperature control are integrated.

Description

Technical Field

[0001] The utility model relates to the technical field of ceramic heaters, in particular to a planar ceramic heater with double circuits. Background Art

[0002] High temperature fired ceramic heater is a new generation of medium and low temperature heating element produced by printing resistor paste directly on AL203 alumina ceramic green body, firing at a high temperature of about 1600℃, and then processing electrodes and leads. It is another new generation product after alloy heating wire and PTC heating element. It is widely used in many fields that require medium and low temperature heating, such as daily life, industrial and agricultural technology, communications, medical treatment, environmental protection, etc.

[0003] The existing ceramic heating sheet has a single structure, only prints one heating circuit, and only has a heating function, which cannot meet the temperature control requirements. Utility Model Content

[0004] The utility model aims to provide a planar ceramic heater with dual circuits, so as to solve the technical problem that the prior art has a single structure, only prints one heating circuit, has only a heating function, and cannot meet the temperature control requirements.

[0005] In order to achieve the above purpose, the utility model is implemented by adopting the following technical solutions:

[0006] A planar ceramic heater with dual circuits includes an alumina ceramic substrate, the alumina ceramic substrate is divided into a heating area and a wiring area, two layers of circuits, a heating circuit and a temperature control circuit, are printed on the alumina ceramic substrate, and a first temperature control circuit, a first heating circuit, a second heating circuit and a second temperature control circuit are fixedly connected in sequence from bottom to top on the wiring area.

[0007] Furthermore, two circular through holes are provided on the heating area.

[0008] Furthermore, the first temperature control circuit and the second temperature control circuit are connected to a temperature control circuit.

[0009] Furthermore, the first heating circuit and the second heating circuit are connected to a heating circuit.

[0010] The beneficial effects of the utility model are as follows:

[0011] The utility model can perform heating or temperature control according to actual needs by printing two layers of circuits, namely, a heating circuit and a temperature control circuit, on an alumina ceramic substrate. The structure is reasonably designed to integrate heating and temperature control. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is the front view of the utility model.

[0013] Figure 2 It is a schematic diagram of the heating circuit of the utility model.

[0014] Figure 3 It is a schematic diagram of the temperature control circuit of the utility model.

[0015] Notes in the figure: 1. Alumina ceramic substrate; 2. Heating area; 3. Wiring area; 4. Heating circuit; 5. Temperature control circuit; 6. First temperature control circuit; 7. First heating circuit; 8. Second heating circuit; 9. Second temperature control circuit. DETAILED DESCRIPTION

[0016] In order to make the above-mentioned purposes, features and advantages of the utility model more understandable, the specific implementation of the utility model is described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific implementation disclosed below.

[0017] In the description of the present invention, it should be understood that the terms up, down, front, back, left, right, top, bottom, inside, outside, etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0018] The examples are as follows:

[0019] See also Figure 1-3 A planar ceramic heater with a dual circuit includes an alumina ceramic substrate 1, the alumina ceramic substrate 1 is divided into a heating area 2 and a wiring area 3, two layers of circuits, a heating circuit 4 and a temperature control circuit 5, are printed on the alumina ceramic substrate 1, and a first temperature control circuit 6, a first heating circuit 7, a second heating circuit 8 and a second temperature control circuit 9 are fixedly connected in sequence from bottom to top on the wiring area 3, the first temperature control circuit 6 and the second temperature control circuit 9 are connected to the temperature control circuit 5, the first temperature control circuit 6 and the second temperature control circuit 9 are connected to the temperature control circuit 5 by welding, the first heating circuit 7 and the second heating circuit 8 are connected to the heating circuit 4, and the first heating circuit 7 and the second heating circuit 8 are connected to the heating circuit 4 by welding.

[0020] As an optional technical solution of the utility model: two circular through holes are provided on the heating area 2.

[0021] In summary: by printing two layers of circuits, the heating circuit 4 and the temperature control circuit 5, respectively, on the alumina ceramic substrate 1, heating or temperature control can be performed according to actual needs, and the structural design is reasonable, so that heating and temperature control are integrated.

[0022] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be implemented in other specific forms without departing from the spirit or basic features of the utility model; therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description. Therefore, it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the utility model, and any figure marks in the claims should not be regarded as limiting the claims involved.

[0023] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A planar ceramic heating body with dual circuits, comprising an alumina ceramic substrate, characterized in that: The alumina ceramic substrate is divided into a heating area and a wiring area. Two layers of circuits, a heating circuit and a temperature control circuit, are printed on the alumina ceramic substrate respectively. The wiring area is fixedly connected with a first temperature control circuit, a first heating circuit, a second heating circuit and a second temperature control circuit in sequence from bottom to top.

2. A planar ceramic heating body with dual circuits according to claim 1, characterized in that: Two circular through holes are arranged on the heating area.

3. A planar ceramic heating body with dual circuits according to claim 1, characterized in that: The first temperature control circuit and the second temperature control circuit are connected to the temperature control circuit.

4. A planar ceramic heating body with dual circuits according to claim 1, characterized in that: The first heating circuit and the second heating circuit are connected to a heating circuit.

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