CN201855330U - Portable hand warmer with function of standby power supply - Google Patents

Abstract

The utility model relates to a portable hand warmer with the function of a standby power supply. The portable hand warmer comprises a barrel-shaped metal housing (1), a first end cover (100) and a second end cover (101), wherein the first end cover (100) and the second end cover (101) are used for sealing the two ends of the housing (1); a circuit board (5), a rechargeable battery (2), a heat radiation film (3) and a heating film (4) are arranged in the housing (1); and particularly, a voltage booster circuit (300) is added in the circuit board (5), so that the voltage of the rechargeable battery (2) can meet the requirement on the voltage of the standby power supply. The portable hand warmer with the function of the standby power supply not only has small volume and light weight and is convenient to carry, but also can serve as the standby power supply to charge a mobile phone and other appliances; and the barrel-shaped metal housing of the portable hand warmer can realize heat conduction to the whole housing.

Description

A kind of portable hand warmer with stand-by power supply function

Technical field

This utility model relates to heating system, more particularly, relates to a kind of portable hand warmer with stand-by power supply function.

Background technology

Need because of working or learning cold season, our pushing time exposes in the environment of cold, cold injury very easily is so we need the hand warmer heating, still, summer when spring comes,, temperature raises, and hand warmer is just lack scope for their abilities, and secular shelving all can be caused harmful effect to circuit to battery, and this also is a kind of waste of resource.

The utility model content

The technical problems to be solved in the utility model is that the single defective of above-mentioned functions at the warm hands equipment of prior art provides a kind of portable multifunctional hand warmer, especially a kind of portable hand warmer with stand-by power supply function.

The technical scheme that its technical problem that solves this utility model adopts is: construct a kind of portable hand warmer with stand-by power supply function, comprise circuit board, rechargeable battery and heating film, it is characterized in that, the described rechargeable battery that described circuit board comprises a booster circuit and is electrically connected with it, described booster circuit provides stand-by power source by the stand-by power supply interface for miscellaneous equipment.

Circuit board described in the utility model comprises: rechargeable battery and the battery protection module that is electrically connected with it, described booster circuit, battery capacity detection module, charging module, heating film; Be coated with heat dissipation film on the described heating film.

Charging module described in the utility model is electrically connected with the USB input interface; Described booster circuit is electrically connected with the stand-by power supply interface; Described charging module, described battery capacity detection module are electrically connected with charging/relay indicating light respectively; Described temperature control and battery capacity detection module are electrically connected with switch.

First and second end cap that hand warmer described in the utility model places cylindrical metal shell and seals the shell two ends, described second end cap are provided with USB input interface hole, the stand-by power supply interface holes that described stand-by power supply interface is housed that described USB input interface is housed, the charging/relay indicating light installing hole of described charging/relay indicating light and the switch installing hole that described switch is housed are housed.

Implement the portable hand warmer with stand-by power supply function of the present utility model, has following beneficial effect: the booster circuit of portable hand warmer with stand-by power supply function of the present utility model by increasing, charged battery voltage is elevated to the satisfied voltage that stand-by power supply is provided for miscellaneous equipment, increased the function of hand warmer like this, improved the utilization rate of hand warmer, in very long spring, summer, hand warmer still can be brought into play the function of its stand-by power supply like this.

Description of drawings

The utility model is described in further detail below in conjunction with drawings and Examples, in the accompanying drawing:

Fig. 1 is the inner member structural representation that the utlity model has the portable hand warmer specific embodiment of stand-by power supply function;

Fig. 2 is the second end cover structure sketch map that the utlity model has the portable hand warmer specific embodiment of stand-by power supply function;

Fig. 3 is the cutaway view that the utlity model has the portable hand warmer specific embodiment of stand-by power supply function;

Fig. 4 is the circuit theory diagrams that the utlity model has the portable hand warmer specific embodiment of stand-by power supply function.

The specific embodiment

As shown in Figure 1, the portable hand warmer with stand-by power supply function of the present utility model comprises: the shell 1 of both ends open, its opening are respectively equipped with first end cap 100 and second end cap 101 of fixed installation to seal its opening.

Be provided with in the shell 1: circuit board 5 and the rechargeable battery 2 that is electrically connected with circuit board 5 respectively, heating film 4.Be coated with heat dissipation film 3 on the heating film 4.

As shown in Figure 2, second end cap 101 is provided with USB input interface hole 111, stand-by power supply interface holes 121, charging/relay indicating light installing hole 131 and switch installing hole 141.

As depicted in figs. 1 and 2, USB input interface hole 111, stand-by power supply interface holes 121, charging/relay indicating light installing hole 131 and switch installing hole 141 are equipped with USB input interface 6, stand-by power supply interface 7 respectively, charging/relay indicating light 8 and switch 9.

As shown in Figure 1 and Figure 4, circuit board 5 comprises: USB input interface 6, stand-by power supply interface 7, charging/relay indicating light 8, switch 9,charging module 700, temperature control and batterycapacity detection module 800 and secondary battery protective module 200.USB input interface 6 is electrically connected withcharging module 700, temperature control and batterycapacity detection module 800, heating film 4 and rechargeable battery 2 respectively; Stand-by power supply interface 7 is electrically connected with booster circuit 300, and booster circuit 300 is electrically connected with rechargeable battery 2; Covered heat dissipation film 3 on the heating film 4 playing the effect of avoiding heating film 4 and temperature head and aluminum hull to be short-circuited, and heating film 4 and rechargeable battery 2 are electrically connected; Secondary batteryprotective module 200 is electrically connected with rechargeable battery 2;Charging module 700 and batterycapacity detection module 800 are provided with public charging/relay indicating light 8; Switch 9 joins with temperature control and batterycapacity detection module 800; The output circuit 300 that boosts joins with rechargeable battery 2, and by stand-by power supply interface 7 output voltages.

Charging module 700 is used for rechargeable battery 2 is charged, if under open state, charging/relay indicating light 8 is red to rechargeable battery 2 chargings the time, and charging finishes back charging/relay indicating light 8 for green; If under off-mode, charging/relay indicating light 8 is red to rechargeable battery 2 chargings the time, and charging/relay indicating light 8 extinguished after charging finished.Charging module 700 is started working or booster circuit when output is arranged, and circuit is inner to be forced to stop to heating film 4 heating.

Temperature control and batterycapacity detection module 800 are used to detect the temperature of battery capacity and hand warmer, if the undertension of rechargeable battery 2, charging/relay indicating light 8 is red, in time charge to remind the user; When normal the and hand warmer of the voltage of rechargeable battery 2 was in running order, charging/relay indicating light 8 was green, and indication heating film 4 is in duty.

Secondary batteryprotective module 200 prevents that rechargeable battery 2 from producing untoward reaction because of external charging voltage is too high when charging or rechargeable battery 2 is damaged.Rechargeable battery 2 is by 6 chargings of USB input interface in the present embodiment.

Booster circuit 300 is still in running order when shutdown, and the equipment of needing only is connected with stand-by power supply interface 7 just can be for equipment provides power supply, and up to the battery electric quantity deficiency, charging/relay indicating light 8 red lights light.When stand-by power supply interface 7 had output, heating can be forced to stop.Equipment is mobile phone in the present embodiment, and the stand-by power supply function is to be cell-phone charging, and in other embodiments, equipment can also be MP3, MP4, MP5.

The described concrete using method with portable hand warmer of stand-by power supply function of the foregoing description is:

Open switch 9, charging/relay indicating light 8 green light, indication is adding to be pined for.If the charged battery voltage deficiency, originally green light is bright, and to have become red light bright.

When the charged battery voltage deficiency needs charging, be inserted through USB input interface 6 connection external charging batteries and begin charging, the inner pressure of circuit this moment stops to heat, and charging/relay indicating light sends out a warning, after finishing, charging gives a green light, up to the USB connection line that cuts off the external charging battery.

When being cell-phone charging, booster circuit is by stand-by power supply interface 7 output 5V voltages, and the inner pressure of circuit this moment stops heating.

The above only is embodiment of the present utility model; be not so limit claim of the present utility model; every equivalent structure transformation that utilizes this utility model description and accompanying drawing content to be done; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present utility model.

Claims (4)

1. portable hand warmer with stand-by power supply function, comprise circuit board (5), rechargeable battery (2) and heating film (4), it is characterized in that, the described rechargeable battery (2) that described circuit board (5) comprises a booster circuit (300) and is electrically connected with it, described booster circuit (300) provides stand-by power source by stand-by power supply interface (7) for miscellaneous equipment.

2. according to the described portable hand warmer of claim 1 with stand-by power supply function, it is characterized in that described circuit board (5) comprises rechargeable battery (2) and the battery protection module (200) that is electrically connected with it, described booster circuit (300), battery capacity detection module (800), charging module (700), heating film (4); Be coated with heat dissipation film (3) on the described heating film (4).

3. according to the described portable hand warmer of claim 2, it is characterized in that described charging module (700) is electrically connected with USB input interface (6) with stand-by power supply function; Described booster circuit (300) is electrically connected with stand-by power supply interface (7); Described charging module (700), described battery capacity detection module (800) are electrically connected with charging/relay indicating light (8) respectively; Described temperature control and battery capacity detection module (800) are electrically connected with switch (9).

4. according to the described portable hand warmer of claim 3 with stand-by power supply function, it is characterized in that, described hand warmer places cylindrical metal shell (1) and seals first of shell (1) two ends, two end caps (100,101) in, described second end cap (101) is provided with the USB input interface hole (111) that described USB input interface (6) is housed, the stand-by power supply interface holes (121) of described stand-by power supply interface (7) is housed, charging/relay indicating light the installing hole (131) of described charging/relay indicating light (8) and the switch installing hole (141) that described switch (9) is housed are housed.

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