Runner layer structure of PTC electric heating device
An electric heating device and layer structure technology, applied in water heaters, fluid heaters, lighting and heating equipment, etc., can solve the problem of increasing the pressure load of the flow medium pipeline of the power pump in the heating system, reducing the heating power of the PTC heating element, heating Problems such as excessive pressure difference between the inlet and outlet of the device, to avoid excessive local temperature, improve heat transfer effect, and high heat transfer efficiency
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[0014] The present invention will be further described in detail below in conjunction with the drawings.
[0015] Attached figure 1 And figure 2 , A flow channel layer structure of a PTC electric heating device, which includes a lower shell 3, an upper shell 4 and a sealing element 8. At least one of the lower shell 3 and the upper shell 4 is attached to the PTC heating element, The lower housing 3 or the upper housing 4 is provided with a groove 20 for mounting the sealing element 8. The lower housing 3 and the upper housing 4 are pressed together with the sealing element 8 to form a single exterior with only an entrance. 10 and the outlet 11 assembly; the assembly is provided with an inlet main channel 5, an outlet main channel 6 and a branch flow channel 7 composed of a number of heat exchange fins 14; the branch flow channel 7 is in an S shape, The plurality of branch flow channels 7 introduce the flow medium in the inlet main flow channel 5 into the outlet main flow channe...
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