CN2480996Y

CN2480996Y - Solar energy recharger for mobile telephone lithium battery

Info

Publication number: CN2480996Y
Application number: CN 01245810
Authority: CN
Inventors: 徐跃进; 陈志刚; 叶自力; 周叶军
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-06-08
Filing date: 2001-06-08
Publication date: 2002-03-06
Anticipated expiration: 2011-06-08

Abstract

The utility model mainly comprises an upper cover, a back cover, a solar battery component, a charging battery, a printing board of a charging circuit and an electrode which can be connected with a mobile phone; the upper cover comprises a plastic cover matching with a mobile phone and the solar battery component, the solar battery component is formed by a solar energy wafer, a substrate arranged under the solar energy wafer and one layer of transparent resin coated on the solar energy wafer, the back cover comprises a plastic back cover matching with a mobile phone, a lithium ion battery and the printing board of the charging circuit, the printing board of the charging circuit is provided with the electrode which can be connected with a mobile phone, wherein voltage boost and voltage reduction and a voltage stabilizer, a constant current constant voltage charger, an anti-countercurrent device and a protection device from overcharge and overdischarge are employed.

Description

The cellular li-ion battery solar charging device

The utility model relates to battery charger, particularly a kind of cellular li-ion battery solar charging device.

At present, it is existing to the multiple technologies solution, for example to utilize solar energy that battery of mobile phone is charged: Chinese patent 96106457.9,98218686.X, 992085675.5,99226406.5 etc.But there are many problems in above-mentioned these technical solutions: at first, they can not be used for lithium ion battery is charged, because the lithium ion battery self characteristics must be charged with the power supply that constant voltage is changeed in constant current with regard to having determined it; Secondly, they can not effectively utilize the output of solar cell, because what these technical solutions all adopted is the electric energy of only solar cell being exported, through after the simple processing of circuit, be applied directly on the rechargeable battery, and the nominal voltage of lithium ion battery is three times of nickel-cadmium cell or Ni-MH battery, and, make that being lower than output lithium ion battery voltage and that be higher than the solar cell of battery upscale protection voltage all will be wasted owing to the effect of the essential charge protector of lithium ion battery; Moreover the characteristic of incident angle of light is depended in the output that they can not adapt to solar cell effectively.

The purpose of this utility model is to address the above problem, and provides a kind of and can satisfy the requirement of lithium ion cell charging characteristic, can improve the cellular li-ion battery charging device of solar cell utilization rate of electrical again.

The utility model mainly comprises loam cake, bonnet, solar module, rechargeable battery, charging circuit printed board and the electrode that can be connected with mobile phone, be characterized in: loam cake is by the vinyl cover that can cooperate with mobile phone, solar module constitutes, solar module is by solar wafer, liner plate under solar wafer reaches and cover layer of transparent resin-encapsulated formation on solar wafer, bonnet is by the plastic rear cover that can cooperate with mobile phone, lithium ion battery, the charging circuit printed board constitutes, the charging circuit printed board is provided with the electrode that is connected with mobile phone, charging circuit electric wire and solar wafer, lithium ion battery connects; Constitute step-up/down and pressurizer by DC-DC electric pressure converter integrated circuit (IC) 1 and L1, C1, C2, integrated circuit (IC) 2, triode IC3 constitute the constant-current constant-voltage charging device, and integrated circuit (IC) 4, metal-oxide-semiconductor field effect transistor IC5 formation are overcharged and the over circuit to lithium ion battery; But the collapsible carriage of regulated at will angle is housed on the described bonnet, the sucker that can rotate arbitrarily that can be temporarily fixed on the mobile traffic also is housed on the carriage.

Major advantage of the present utility model is: owing to adopted constant-current constant-voltage charging device, anti-backflow device and battery protecting apparatus in charging circuit; make this charging device solar cell can be used for adversary's machine lithium ion battery and carry out safety, reliable, convenient, clean, charging economically; again owing in charging circuit, adopted step-up/down and pressurizer; and but the collapsible carriage of regulated at will angle and the sucker that can rotate arbitrarily are housed on bonnet, this charging device can be effectively utilized more still shows at present expensive solar-electricity Pooled resources.

Further specify the architectural feature and the embodiment of the utility model cellular li-ion battery solar charging device below in conjunction with accompanying drawing.

Fig. 1 is the schematic perspective view of the utility model structure.

Fig. 2 is the upper cover part STRUCTURE DECOMPOSITION schematic diagram of Fig. 1.

Fig. 3 is the back cover portion STRUCTURE DECOMPOSITION schematic diagram of Fig. 1.

Fig. 4 is a charging circuit schematic diagram of the present utility model.

Fig. 5 is a carrier structure schematic diagram of the present utility model.

The structural representation of another embodiment of Fig. 6 the utility model.

Fig. 7 is the upper cover part STRUCTURE DECOMPOSITION schematic diagram of Fig. 6.

Fig. 8 is the battery case part-structure decomposing schematic representation of Fig. 6.

See also shown in Fig. 1,2,3, comprise loam cake 1, bonnet 2 and button 3.Wherein, loam cake 1 is made of the vinyl cover 4 that can cooperate with mobile phone, solar module 5 and connecting line 6.5 of solar modules are formed by certain technology encapsulation by transparent resin 7, solar cell wafer 8 and liner plate 9 again.As shown in Figure 3, bonnet 2 is made of the plastic rear cover 10 that can cooperate with mobile phone, lithium ion battery 11, charging circuit printed board 12, and lithium ion battery 11 is connected with charging circuit printed board 12 usefulness leads 13.

See also shown in the accompanying drawing 4, constitute by being made in step-up/down on the bar printing wiring board 12 and pressurizer, constant-current constant-voltage charging device, anti-backflow device, battery protecting circuit and the output electrode that can match with mobile phone and the pad that can be welded to connect line 13.Wherein, step-up/down and pressurizer are by step-up/step-down type DC-DC converter IC 1, and inductance coil L1 and capacitor C 1 and C2 constitute.It can be converted to the burning voltage with certain electric current with the output voltage E1 of solar module 5, and as the output below the above 5.5V of solar cell 3.0V being converted to stable 5V voltage, the constant-current constant-voltage charging device of supplying with thereafter uses.The constant-current constant-voltage charging device is made of constant-current constant-voltage charging chip IC 1, resistance R 1, triode IC3.It can be exported constant charging current, and when lithium ion battery voltage E2 is higher than 4.1V or 4.2V, export constant charging voltage when lithium ion battery voltage E2 be lower than 4.1V or 4.2V.Anti-backflow device then both can be held a concurrent post by the IC3 shown in Fig. 4, also can realize that above-mentioned anti-backflow device has the also little characteristics of the little reverse leakage current of forward voltage drop by the Schottky diode D1 of collector output series connection at IC3.Battery protecting apparatus by prevent that lithium ion battery from overcharging, the lithium ion battery privacy protection chip IC 4 of overdischarge and overcurrent, MOS type field effect transistor IC5, positive temperature coefficient element PTC, resistance R 2 and R3 and capacitor C 3 constitute; Prevent that the overheated circuit of lithium ion battery from then being made of positive temperature coefficient element PTC and thermistor TH1.

See also shown in the accompanying drawing 5, but be the collapsible carriage 14 that is contained in the regulated at will angle on the bonnet 2 of accompanying drawing 1, this carriage 14 is made by penetrating fine wire in the middle of the vinyon; Also be hinged with the rotating disk that can rotate arbitrarily 15 that can be temporarily fixed on the mobile traffic and coupled soft sucker 16 on the carriage, this sucker 16 is made by soft polyvinyl fluoride material.When charging, being used in combination of this carriage and sucker can be adjusted to this solar recharging assembly 5 and the position of light source near vertical incidence, increased incident intensity, reduced reflection, thereby made solar cell under limited area, produces maximum output.And, this charging device can be temporarily fixed on the mobile traffic with soft sucker, make things convenient in travelling especially and use.

See also shown in the accompanying drawing 6, another embodiment of the present utility model, it is made of loam cake 17, battery case 18, bayonet type phosphor-copper spring leaf contact 19.As shown in Figure 7, loam cake 17 is made of the upper plastic cover 20 that can cooperate with mobile phone, solar module 5 and connecting line 6.Wherein, have metallic channel 21 and lead connecting through hole 22 on the upper plastic cover 20, also embedded and to have contacted guide card 23 with connecting line 6 is electrically connected.As shown in Figure 8, battery case 18 is made of battery case loam cake 24, battery case lower cover 25, lithium ion battery 11, charging circuit printed board 12, bayonet type phosphor-copper spring leaf 19, connection nickel sheet 26, insulating paper 27, insulating cell 28.Wherein, in charging circuit printed board 12, be provided with the electrode 31 that can be connected with mobile phone.On battery case loam cake 24, have lead contact through hole 29, when adopting methods such as gluing or ultrasonic waves welding to enclose above-mentioned lithium ion battery 11, charging circuit printed board 12, bayonet type phosphor-copper spring leaf 19 etc. within the battery case 18, the contact of bayonet type phosphor-copper spring leaf 19 will be outstanding from lead contact through hole 29, after battery case 18 and loam cake 17 are all packed mobile phone into, solar module 5 has kept being electrically connected with the charging circuit of charging circuit printed board 12 just by connecting line 6, contact guide card 23 and bayonet type copper spring sheet 19.

Claims

1, the cellular li-ion battery solar charging device, it mainly comprises loam cake, bonnet, solar module, rechargeable battery, charging circuit printed board and the electrode that can be connected with mobile phone, it is characterized in that: loam cake is by the vinyl cover that can cooperate with mobile phone, solar module constitutes, solar module is by solar wafer, liner plate under solar wafer reaches and cover layer of transparent resin-encapsulated formation on solar wafer, bonnet is by the plastic rear cover that can cooperate with mobile phone, lithium ion battery, the charging circuit printed board constitutes, the charging circuit printed board is provided with the electrode that is connected with mobile phone, charging circuit electric wire and solar wafer, lithium ion battery connects.

2; profit requires 1 described a kind of cellular li-ion battery solar charging device; it is characterized in that: constitute step-up/down and pressurizer by DC-DC electric pressure converter integrated circuit (IC) 1, L1, C1, C2; integrated circuit (IC) 2, triode IC3 constitute the constant-current constant-voltage charging device, and integrated circuit (IC) 4, metal-oxide-semiconductor field effect transistor IC5 formation are overcharged and the over circuit to lithium ion battery.

3, a kind of cellular li-ion battery solar charging device according to claim 1, it is characterized in that: but the collapsible carriage of regulated at will angle is housed on the described bonnet, the sucker that can rotate arbitrarily that can be temporarily fixed on the mobile traffic also is housed on the carriage.

4, a kind of cellular li-ion battery solar charging device according to claim 1 is characterized in that: can adopt the contact of bayonet type phosphor-copper spring leaf between described solar module and the charging circuit printed board and be connected or connect with lead.

5, according to the described a kind of cellular li-ion battery solar charging device of root claim 1, it is characterized in that: described solar module can be a monocrystaline silicon solar cell, polysilicon solar cell, non-crystal silicon solar cell, compound semiconductor solar cell, or organic semiconductor solar cell.

6, a kind of cellular li-ion battery solar charging device according to claim 1 is characterized in that: described Li-Ion rechargeable battery can be the liquid lithium ion rechargeable battery, or the polymer Li-ion rechargeable battery.