Annular PTC heater

Abstract

The invention belongs to the technical field of packaging boxes, and particularly relates to an annular PTC heater. The heater comprises a heater main body, the heater main body is annular, and an upper fixing frame is arranged at the top of the heater main body. In the using process, airflow is fed into the electric heating part through the alignment flow guide assembly, it can be ensured that the airflow is uniformly and synchronously guided to the electric heating part in multiple directions through the alignment flow guide assembly, the alignment precision is high, the heat conduction effect is good, the airflow is conveyed downwards after being heated by the electric heating part, and then automatic adjustment can be achieved through the swing adjusting part; the heating range can be increased, multi-direction angle adjustment is achieved, practicability is high, the adjustable dustproof protection assembly is arranged, the opening and closing adjustment function is achieved, dust and other sundries can be prevented from entering the annular heating cavity when the device is not used, the dustproof protection effect is achieved, the service life of the device is prolonged, and the manual cleaning difficulty is reduced.

Description

technical field [0001] The invention belongs to the technical field of PTC heaters, and relates to an annular PTC heater. Background technique [0002] PTC heating element is also called PTC heater, which is composed of PTC ceramic heating element and aluminum tube. This type of PTC heating element has the advantages of small thermal resistance and high heat exchange efficiency. It is an automatic constant temperature and power saving electric heater. The outstanding feature lies in the safety performance. In any application situation, there will be no "redness" phenomenon on the surface of the electric heating tube heater, which will cause scalding, fire and other safety hazards. For areas such as bathrooms, ring-shaped PTC heaters are used for heating. The existing ring-shaped PTC heaters are difficult to provide dust protection according to requirements, and manual cleaning is difficult during use, which easily affects the heating effect and does not have opening and clo...

AI Technical Summary

Problems solved by technology

For areas such as bathrooms, ring-shaped PTC heaters are used for heating and heating. The existing ring-shaped PTC heaters are difficult to protect against dust according to requirements, and it is difficult to manually clean them during use, which is likely to affect the heating effect and does not have on-off adjustment. function, and the air flow is easy to spread around during the transportation process, it is difficult to conduct multi-directional uniform and synchronous diversion of the air flow, and the heat conduction effect is relatively general, so there is an urgent need for an annular PTC heater that can overcome the above defects

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