CN202759603U - Ceramic heating device - Google Patents

Abstract

The utility model discloses a ceramic heating device, which comprises a metal ceramic heating element, an aluminum seat and a silica gel layer; a cavity is formed in the aluminum base, the metal ceramic heating element is arranged in the cavity and forms a gap with the inner wall of the cavity, and the silica gel layer is tightly filled in the gap; therefore, by utilizing the excellent insulativity and thermal conductivity of the silica gel layer, the induced electricity is effectively reduced on the premise of meeting the thermal conductivity of the silica gel layer, and the potential safety hazard caused by higher induced electricity is eliminated to a great extent; and, utilize the compressibility of silica gel, the natural viscidity in surface for the equipment of cermet heat-generating body in the aluminium seat is fixed to become simple and efficient, has effectively reduced production and assembly cost, is favorable to the utility model discloses a popularization and application of product, and this silica gel layer has played shockproof, sealed effect to the cermet heat-generating body.

Description

ceramic heating device

technical field

The utility model relates to the technology in the field of heating equipment, in particular to a ceramic heating device suitable for heating fluid.

Background technique

Metal-ceramic heating element (MCH, the abbreviation of Metal Ceramics Heater) is a new type of high-efficiency environmental protection and energy-saving ceramic heating element. MCH refers to a ceramic heating element that is made by printing metal tungsten or molybdenum-manganese slurry on a ceramic casting body, after hot-pressing lamination, and then under the protection of high-temperature hydrogen, ceramics and metals are sintered together; it has corrosion resistance , high temperature resistance, long life, high efficiency and energy saving, uniform temperature, good thermal conductivity, fast thermal compensation, etc., and does not contain lead, cadmium, mercury, hexavalent chromium, polybrominated biphenyls, polybrominated diphenyl ethers and other harmful substances.

Therefore, in the prior art, the above-mentioned cermet heating elements are mostly used to design heating devices, especially heating devices for applications requiring heated fluid such as foot baths. However, in the prior art, there are still some imperfections in its application to cermet heating elements. For example, it is troublesome to assemble, it is not easy to manufacture, and its production cost is relatively high, which is not conducive to the popularization and application of products; The induction electricity generated by the heating device is relatively high, and there is a potential safety hazard, especially in the above-mentioned occasions such as foot baths and other direct contact applications in people's lives.

Therefore, a new technical solution needs to be researched to solve the above problems.

Utility model content

In view of this, the utility model aims at the deficiencies of the existing technology, and its main purpose is to provide a ceramic heating device, which effectively reduces the induced electricity, and largely eliminates the potential safety hazards caused by the high induced electricity. , and its assembly is extremely simple and convenient, reducing production and assembly costs.

In order to achieve the above object, the utility model adopts the following technical solutions:

A ceramic heating device, comprising a cermet heating element, an aluminum base, and a silica gel layer; a cavity is formed inside the aluminum base, the aforementioned cermet heating element is arranged in the cavity and forms a gap with the inner wall of the cavity, and the aforementioned silica gel Layers are tightly packed in this gap.

As a preferred solution, the cavity is a groove with only one side open.

As a preferred solution, the aforementioned gap is formed between the cermet heating element and the inner surface of the groove.

As a preferred solution, the aluminum base includes a vertically arranged heat conduction portion and a horizontally disposed installation portion, the aforementioned groove is formed in the heat conduction portion, and the installation portion integrally extends outward from the periphery of the groove opening of the heat conduction portion. become.

As a preferred solution, an installation hole is opened on the installation part.

As a preferred solution, the cermet heating element is electrically connected with lead wires protruding from the aforementioned opening.

Compared with the prior art, the utility model has obvious advantages and beneficial effects. Specifically, it can be known from the above technical solutions:

1. By filling the silicone layer between the cermet heating element and the inner wall of the cavity of the aluminum seat, using the excellent insulation and thermal conductivity of the silicone layer, the induced electricity is effectively reduced under the premise of satisfying its thermal conductivity. To a certain extent, the potential safety hazard caused by the high induction current is eliminated;

2. Utilizing the compressibility of silica gel and the natural viscosity of the surface, the assembly and fixing of the cermet heating element in the aluminum seat becomes simple and fast, which effectively reduces the cost of production and assembly, and is conducive to the popularization and application of the product of the utility model. The silica gel layer plays a shockproof and sealing role for the cermet heating element.

In order to illustrate the structural features and functions of the utility model more clearly, the utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

Description of drawings

Fig. 1 is the assembled three-dimensional schematic diagram of the preferred embodiment of the present utility model;

Fig. 2 is the three-dimensional cross-sectional structure schematic diagram of the preferred embodiment of the present utility model;

Fig. 3 is a schematic structural view of an aluminum seat in a preferred embodiment of the present invention.

Explanation of the accompanying drawings:

10. Aluminum seat 11. Heat conduction part

111. Groove 12. Installation part

121. Mounting hole 20. Metal-ceramic heating element

21. Lead wire 30. Silicone layer.

Detailed ways

Please refer to FIGS. 1 to 3 , which show the specific structure of a preferred embodiment of the present invention, including a cermet heating element 20 , an aluminum base 10 and a silica gel layer 30 .

Wherein, the aluminum base 10 includes a vertical heat conducting portion 11 and a horizontal mounting portion 12, a cavity is formed in the heat conducting portion 11, and in this embodiment, the cavity is a groove 111 with only one side open. The mounting portion 12 is integrally formed by extending outward from the opening periphery of the groove 111 of the heat conducting portion 11 , and the mounting portion 12 is provided with a mounting hole 121 .

The cermet heating element 20 is loaded into the groove 111 from the opening of the aforementioned groove 111, and the cermet heating element 20 is electrically connected with a lead wire 21 protruding from the aforementioned opening; and the cermet heating element 20 and the cavity A gap is formed between the inner walls (for example, the bottom wall and the surrounding side walls), and the aforementioned silica gel layer 30 is tightly filled in the gap.

When assembling, first put the cermet heating element 20 into the groove 111 of the aluminum base 10, and then tightly fill the silica gel layer 30 in the aforementioned gap. In this way, the stable assembly and positioning of the cermet heating element 20 is easily completed.

The key point of the design of this utility model is that it is mainly filled with a silica gel layer between the cermet heating element and the inner wall of the cavity of the aluminum seat, and utilizes the excellent insulation and thermal conductivity of the silica gel layer to satisfy its thermal conductivity. , which effectively reduces the induced electricity, and eliminates the potential safety hazards caused by high induced electricity to a large extent; and, using the compressibility of silica gel and the natural viscosity of the surface, the cermet heating element can be assembled and fixed in the aluminum seat It becomes simple and fast, effectively reduces the cost of production and assembly, and is beneficial to the popularization and application of the product of the utility model, and the silica gel layer plays a role of shockproof and sealing for the cermet heating element.

The above are only preferred embodiments of the present utility model, and do not limit the technical scope of the present utility model, so any minor modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present utility model , all still belong to the scope of the technical solution of the utility model.

Claims (6)

1. A ceramic heating device, characterized in that: it includes a metal-ceramic heating element, an aluminum base and a silica gel layer; a cavity is formed inside the aluminum base, and the aforementioned metal-ceramic heating element is arranged in the cavity and connected to the inner wall of the cavity. A gap is formed between them, and the aforementioned silica gel layer is tightly filled in the gap. 2. The ceramic heating device according to claim 1, wherein the cavity is a groove with only one side open. 3. The ceramic heating device according to claim 2, characterized in that: the aforementioned gap is formed between the cermet heating element and the inner surface of the groove. 4. The ceramic heating device according to claim 3, characterized in that: the aluminum base includes a vertically arranged heat conduction portion and a horizontally disposed installation portion, the aforementioned groove is formed in the heat conduction portion, and the installation portion conducts heat by itself The periphery of the opening of the groove at the top is integrally extended outwards. 5. The ceramic heating device according to claim 4, wherein an installation hole is opened on the installation part. 6 . The ceramic heating device according to claim 2 , wherein a lead wire is electrically connected to the cermet heating element and protrudes from the aforementioned opening. 7 .

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