CN-224233865-U - Ceramic heating element with good insulation

CN224233865UCN 224233865 UCN224233865 UCN 224233865UCN-224233865-U

Abstract

The utility model discloses a ceramic heating body with good insulativity, which comprises an upper ceramic layer, a lower ceramic layer and a tungsten paste heating circuit arranged on opposite sides of the upper ceramic layer and the lower ceramic layer, wherein two electrode holes which are respectively arranged at two ends of the tungsten paste heating circuit are formed in the upper ceramic layer, electrode plates and energizing leads connected with the electrode plates are arranged in the electrode holes.

Inventors

SHEN MAOLIN
LI YAFENG
ZHANG XIAOMING

Assignees

郑州嵩鑫电子科技有限公司

Dates

Publication Date: 20260512
Application Date: 20250523

Claims (6)

1. The ceramic heating body with good insulativity comprises an upper ceramic layer, a lower ceramic layer and a tungsten paste heating circuit arranged on opposite sides of the upper ceramic layer and the lower ceramic layer, wherein two electrode holes which are respectively arranged at two ends of the tungsten paste heating circuit are formed in the upper ceramic layer, and an electrode plate and an energizing lead connected with the electrode plate are arranged in the electrode holes.
2. A ceramic heating element with good insulation as set forth in claim 1, wherein the filler layer is made of polyurethane foam.
3. A ceramic heating body with good insulation performance as set forth in claim 1, wherein the inner side of the protective shell is provided with a heat insulation layer contacted with the side surfaces of the upper ceramic plate and the lower ceramic plate, and the heat insulation layer is made of alumina aerogel.
4. A ceramic heating body with good insulation property as set forth in claim 1, wherein the energizing wire comprises a nickel wire and a Teflon sleeve coated on the outer side surface of the nickel wire, and the nickel wire is connected with the electrode plate.
5. A ceramic heating body with good insulation property as described in claim 4, wherein a high temperature resistant sealing gasket in contact with the Teflon sleeve is arranged in the isolation block.
6. A ceramic heating element with good insulation property as set forth in claim 1, wherein the upper ceramic layer and the lower ceramic layer are both provided with silicon nitride coating on the outer side surfaces.

Description

Ceramic heating element with good insulation Technical Field The utility model belongs to the technical field of ceramic heating elements, and relates to a ceramic heating element with good insulation property. Background With the continuous improvement of the requirements of society on energy conservation, environmental protection and high-efficiency heat energy utilization, the water heating system is widely applied to places such as families, office buildings, business centers and the like, and in the traditional water heating system, a heating body mainly adopts a metal heating tube or a traditional ceramic heating body. The Chinese patent with the bulletin number of CN204598339U discloses a sheet ceramic heating element, which comprises a ceramic matrix, wherein a heating circuit and an electrode lead are arranged on the surface of the ceramic matrix, the heating circuit is printed on the surface of the ceramic matrix, an insulating layer is arranged on the surface of the heating circuit, and the ceramic matrix is of a sheet structure. Disclosure of utility model Aiming at the problems, the utility model provides the ceramic heating element with good insulation property, and the problems in the prior art are well solved. In order to achieve the purpose, the ceramic heating element with good insulativity comprises an upper ceramic layer, a lower ceramic layer and a tungsten paste heating circuit arranged on opposite sides of the upper ceramic layer and the lower ceramic layer, wherein two electrode holes which are respectively arranged at two ends of the tungsten paste heating circuit are formed in the upper ceramic layer, electrode plates and energizing leads connected with the electrode plates are arranged in the electrode holes, a protective shell is arranged at the right ends of the upper ceramic layer and the lower ceramic layer, the electrode holes are positioned at the inner side of the protective shell, an isolation block is arranged in the protective shell, a filling layer positioned in the protective shell is arranged at the right side of the isolation block, and the energizing leads sequentially penetrate through the isolation block, the filling layer and the protective shell and extend to the right side of the protective shell. Further, the material of the filling layer is polyurethane foam. Further, the inner side surface of the protective shell is provided with a heat insulation layer contacted with the side surfaces of the upper ceramic plate and the lower ceramic plate, and the heat insulation layer is made of alumina aerogel. Further, the energizing lead comprises a nickel wire lead and a teflon sleeve coated on the outer side surface of the nickel wire lead, and the nickel wire lead is connected with the electrode plate. Further, a high-temperature-resistant sealing gasket in contact with the teflon sleeve is arranged in the isolation block. Further, the outer side surfaces of the upper ceramic layer and the lower ceramic layer are respectively provided with a silicon nitride coating. Compared with the prior art, the utility model has the following beneficial effects: The utility model realizes multistage isolation of the electrode holes through the protective shell, the isolation block and the filling layer, prevents the electrode holes from contacting the outside, ensures the electrical insulation of the ceramic heating body, realizes the heat insulation protection between the protective layer and the upper and lower ceramic layers through the heat insulation layer, prolongs the service life of the protective shell, realizes the further protection of the upper and lower ceramic layers through the silicon nitride coating, and improves the electrical insulation of the ceramic heating body while ensuring the heating efficiency of the ceramic heating body. Drawings FIG. 1 is a schematic diagram of the structure of the present utility model; FIG. 2 is a schematic view of the structure of the portion A-A of FIG. 1 according to the present utility model; Fig. 3 is a front view of the present utility model. In the figure, the upper ceramic layer, the electrode hole, the lower ceramic layer, the tungsten paste heating circuit, the silicon nitride coating, the electrode plate, the nickel wire, the teflon sleeve, the protective shell, the sealing gasket, the heat insulation layer, the insulating block, the filling layer and the insulating block are respectively arranged on the electrode plate, the electrode plate and the insulating layer. Detailed Description The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort,