Warm device of canteen

Abstract

The invention discloses a warm device of a canteen. The warm device comprises a heating base, wherein the heating base is provided with an adjustable connection belt; the heating base is internally provided with a USB (universal serial bus) interface; the USB interface is connected with an external power source; the energy of the external power source is input into a first resistor, a first light-emitting diode and a capacitor; the first resistor is connected with an emitting electrode of a transistor; a collector of the transistor is used for charging a NI-MH battery by virtue of an isolating diode; a base electrode of the transistor is connected with a second resistor; the negative electrode of the isolating diode is connected with an electrothermal film by virtue of a switch; the electrothermal film is sequentially connected with the negative electrode of the NI-MH battery, the second resistor and the capacitor by virtue of a second light-emitting diode. The warm device overcomes the defect that heat of water in the canteen cannot preserved in cold winter; the warm device is convenient to carry, safely heats the liquid in the canteen in a low temperature manner, has a continuous heat preservation effect, and meets various requirements in practical application.

Description

technical field [0001] The invention relates to military kettles, in particular to a warming device for military kettles used in cold regions in winter. Background technique [0002] The military kettle is an indispensable piece of equipment for military personnel, which facilitates the needs in practical applications. The kettle body of existing military kettle adopts aluminum material, and the kettle stopper is the phenolic plastic screw cap, fixes from kettle both sides with canvas band. [0003] Existing military kettles usually have no thermal insulation performance. In the cold season, the temperature of the liquid in the kettle drops rapidly or the water temperature is low, which is not suitable for direct drinking. Especially in alpine regions, the liquid in the kettle may even freeze and cannot be drunk. Contents of the invention [0004] The present invention provides a warming device for a military kettle, which can not only heat the military kettle at a low te...

AI Technical Summary

Problems solved by technology

[0003] Existing military kettles usually have no thermal insulation performance. In the cold season, the temperature of the liquid in the kettle drops rapidly or the water temperature is low, which is not suitable for direct drinking, especially in alpine regions, where the liquid in the kettle may even freeze and cannot be drunk.

Images