2results about How to "Prevent reverse connection" patented technology

The application relates to the technical field of wearable electric heating sheets, and discloses a multi-voltage input clothing heating sheet based on a multi-tap structure, which comprises a clothing heating sheet body, multiple groups of heating elements which are independent and can be selectively connected in series, a multi-tap lead wire, a multi-voltage input plug and a control circuit module. According to the application, one end of the multi-tap lead wire is electrically connected with different connection nodes of the multiple groups of heating elements in one-to-one correspondence, and the other end is adaptively connected with the multi-voltage input plug, so that different voltages drive different heating elements to be connected in series, meanwhile, the control circuit module guarantees stable power supply, prevents reverse connection of the power supply and filters out power supply clutter, and through feedback of a state indicating element, the on-off of the power supply loop is controlled, so that the clothing heating sheet can be adapted to mainstream power banks without a special power supply, the heating sheet power and the heating area are automatically matched to prevent temperature out-of-control scalding and improve the wearing comfort, and the power supply compatibility, the use safety and the overall use experience of the clothing heating sheet are improved.

The utility model discloses a kind of battery pack liquid cooling heat dissipation systems of electric aircraft, belong to power battery heat dissipation technical field, including box, connecting reversing component and mounting base;The box is provided with two groups and is respectively fixedly installed on the left and right sides of mounting base upper end, the connecting reversing component is provided with two groups and is respectively installed on the left and right sides of mounting base upper end;Upper die group and lower die group are installed in the inside of the box, the upper die group and lower die group all include electric core and liquid cooling system, the electric core is provided with multiple and all fixedly installed in the inside of box, multiple electric core groups are arranged between the most front side and the last side, and electric core group is composed of two mutually fixed. By the above-mentioned mode, the utility model can realize the heat dissipation of multilayer module, and can realize the efficient heat dissipation of electric core, reduce the temperature difference between electric core, prolong the cycle life of battery pack;While the safety of battery pack can be efficiently inhibited the heat runaway spread of electric core, increase.