Thick film heater

Abstract

The invention relates to a thick film heater. The thick film heater comprises a first heating sheet, a second heating sheet and edible silicon gel sheet, wherein a plurality of first shallow grooves are formed in the upper surface of the edible silicon gel sheet, a plurality of second shallow grooves are formed in the lower surface of the edible silicon gel sheet, the tail end of one front first shallow groove is communicated with the initial end of the corresponding second shallow groove through a connecting hole, and the initial end of one rear first shallow groove is communicated with the tail end of the corresponding second shallow groove through a connecting hole; a water inlet and a water outlet are formed in the first heating sheet or the second heating sheet. The thick film heater is of only three layers in the thickness direction and is very thin; no sealing elements need to be additionally arranged, and therefore the overall thickness is reduced; heating resistors on the first heating sheet and the second heating sheet are printed, and therefore the overall thickness is reduced; water is directly heated through the first heating sheet and the second heating sheet, heating is faster, and the heat utilization rate is higher; water flows through the first heating sheet and the second heating sheet in the mode of a thin layer, and heating is faster.

Description

technical field [0001] The present invention relates to a heater, in particular to a thick film heater. Background technique [0002] Current heaters generally include a container and a heating element arranged in the container. After being energized, the heating element heats the water in the container, such as an electric kettle, a traditional Chinese medicine kettle, and a water storage water heater. The container used for water storage is large in size, takes up a large space, and the heating speed is slow, which limits its application range to a large extent, such as being difficult to be suitable for water dispensers, beverage dispensers, etc. [0003] There are also some heaters, such as straight-through water heaters, in which a circuitous water channel is arranged, and the heating element heats the water in the circuitous channel. Although it can directly output hot water, it also has the disadvantage of large volume, and it is difficult to apply to water dispensers...

AI Technical Summary

Problems solved by technology

[0002] Current heaters generally include a container and a heating element arranged in the container. After being energized, the heating element heats the water in the container, such as an electric kettle, a traditional Chinese medicine kettle, and a water storage water heater. The container used for water storage is large, takes up a large space, and the heating speed is slow, which greatly limits its application range, for example, it is difficult to apply to water dispensers, beverage machines, etc.

[0003] There are also some heaters, such as straight-through water heaters, in which a circuitous water channel is arranged, and the heating element heats the water in the circuitous channel. Although it can directly output hot water, it also has the disadvantage of large volume, and it is difficult to apply to water dispensers. , beverage machine, etc.

[0004] In addition, the above-mentioned heating elements generally use traditional heating elements such as resistance tubes, while the circuitous water channels of direct-flow water heaters generally use pipes. These pipes have a large volume, which is also the reason for the large volume of the heater.

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