CN202282750U - Portable digital equipment field emergency charging device - Google Patents
Portable digital equipment field emergency charging device Download PDFInfo
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- CN202282750U CN202282750U CN2011203188476U CN201120318847U CN202282750U CN 202282750 U CN202282750 U CN 202282750U CN 2011203188476 U CN2011203188476 U CN 2011203188476U CN 201120318847 U CN201120318847 U CN 201120318847U CN 202282750 U CN202282750 U CN 202282750U
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- digital equipment
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Abstract
A portable digital equipment field emergency charging device is used to solve the field charging problem of digital equipment. The technical scheme of the utility model is that the portable digital equipment field emergency charging device is composed of a thermoelectric generation device and a voltage stabilizing circuit, and the thermoelectric generation device comprises a thermoelectric generation module, a fixing plate, a heat dissipation water tank, a heat-conducting plate and a heat storage plate; the thermoelectric generation module is embedded in the middle of the fixing plate, the heat end of the thermoelectric generation module absorbs heat from a heat source orderly via the heat-conducting plate and the heat storage plate fixed at the lower part of the fixing plate, and the cold end is contacted with the heat dissipation water tank fixed at the upper part of the fixing plate tightly, and the electric energy output end of the thermoelectric generation module is connected with the input end of the voltage stabilizing circuit. The portable digital equipment field emergency charging device of the utility model is simple in structure, convenient in carrying, and reliable in working, is especially suitable for being used as the digital equipment field emergency charging device to guarantee the normal use of the digital equipment, so that the field explorations and tours of people can be safer and pleasant.
Description
Technical field
The utility model relates to a kind ofly can utilize open-air thermal source, such as generating such as bonfire, and be the device of digital equipment charging, genus technical field of power generation.
Background technology
At present, portable digital equipment (like mobile phone, camera, video camera, MP4 etc.) is seen everywhere in daily life, and is closely bound up with people's work, leisure and amusement.When people explored in the open air or play for a long time, the battery of digital equipment the situation that electric energy exhausts can occur inevitably, caused communication, amusement equipment not to work, and destroyed people's leisure mood.Especially when people are lost or in danger, can't use the GPS navigation appearance to escape danger in the open air, can not send the calling distress signal, thereby can't guarantee people's personal safety.Therefore, people press for a kind of portable emergency charging device that electric energy can be provided to digital equipment in the open air.
The utility model content
The utility model be used to overcome above-mentioned prior art defective, a kind of portable digital equipment field emergency charging device is provided, make people's field exploration and play safer, happy.
The alleged problem of the utility model realizes with following technical proposals:
A kind of portable digital equipment field emergency charging device; Form by temperature difference electricity generation device and voltage stabilizing circuit; Said temperature difference electricity generation device comprises temperature-difference power generation module, fixed head, cooling water tank, heat-conducting plate and heat accumulation plate; Said temperature-difference power generation module is embedded in the hole at fixed head middle part, and its hot junction absorbs heat through heat-conducting plate and the heat accumulation plate that is fixed on the fixed head bottom from thermal source successively, and cold junction closely contacts with the cooling water tank that is fixed on fixed head top; The electric energy output end of temperature-difference power generation module connects the input of voltage stabilizing circuit, and the output of voltage stabilizing circuit connects external electric equipment.
Above-mentioned portable digital equipment field emergency charging device, said temperature-difference power generation module is made up of three thermo-electric generation sheets that are connected in series, and said thermo-electric generation sheet adopts TEG140.
Above-mentioned portable digital equipment field emergency charging device; Said voltage stabilizing circuit comprises three-port variable voltage regulator, first resistance, second resistance, input filter capacitor and output filter capacitor; The output of the input termination temperature-difference power generation module of said three-port variable voltage regulator also is provided with input filter capacitor; Output termination digital equipment also is provided with output filter capacitor; First resistance and second resistance string are unified into the output that bleeder circuit is connected to three-port variable voltage regulator, and the voltage division signal of their serial connections point output connects the feedback signal input of three-port variable voltage regulator.
Above-mentioned portable digital equipment field emergency charging device; Input at three-port variable voltage regulator is provided with the overvoltage warning circuit; Said overvoltage warning circuit is made up of first light-emitting diode and first voltage stabilizing didoe, is connected to the input of three-port variable voltage regulator after the two is connected in series.
Above-mentioned portable digital equipment field emergency charging device; Output at three-port variable voltage regulator is provided with the charging voltage indicating circuit; Said charging voltage indicating circuit is made up of second light-emitting diode and second voltage stabilizing didoe, is connected to the output of three-port variable voltage regulator after the two is connected in series.
Above-mentioned portable digital equipment field emergency charging device is provided with the heat transfer silica gel layer between temperature-difference power generation module and heat-conducting plate.
The utility model utilizes semi-conductive thermoelectric effect to constitute thermal generator; Open-air any heat resource power generation such as bonfire capable of using; The effect of water tank, heat transfer silica gel layer, heat-conducting plate, heat accumulation plate is to make the two ends of thermo-electric generation sheet produce certain temperature difference, creates power generation conditions for the thermo-electric generation sheet; Temperature-difference power generation module is used for thermal power transfer is become electric energy, and voltage stabilizing circuit is used to regulate the voltage of temperature-difference power generation module output, makes it to be complementary with digital equipment.This apparatus structure is simple, be easy to carry, reliable operation, is especially suitable for use as the field emergency charging device of digital equipment, guarantees the normal use of digital equipment, makes people's field exploration and plays safer, happy.
Description of drawings
Below in conjunction with accompanying drawing the utility model is done further to detail.
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the electrical schematic diagram of the utility model.
Each label is among the figure: 1, tank lid; 2, cooling water tank; 3, fixed head; 4, heat transfer silica gel layer; 5, heat-conducting plate; 6, heat accumulation plate; 7, voltage stabilizing circuit; 8, digital equipment; FD, temperature-difference power generation module; U1, three-port variable voltage regulator; LED1, first light-emitting diode; LED2, second light-emitting diode; D1, first voltage stabilizing didoe; D2, second voltage stabilizing didoe; C1, input filter capacitor; C2, output filter capacitor; R1, first resistance; R2, second resistance.
Embodiment
Thermal generator is can heat energy be converted into the device of electric energy, as long as there is the temperature difference to exist, just has voltage to produce.Thermo-electric generation is a kind of novel generation mode; Have cleaning, noiselessness pollution and discharge of poisonous waste, the life-span is long, volume is little, in light weight, non-maintaining, firm, reliability is high, series of advantages such as stable; Meet requirements of green environmental protection; And its desired temperature difference is easy to obtain in the open air, so thermo-electric generation is a kind of very desirable outdoor generation mode.
The thermo-electric generation techniques make use be semi-conductive thermoelectric effect, the conversion between electric energy and the heat energy realizes through thermo-electric converting material.The hot junction of n type and p N-type semiconductor N linked to each other then can obtain a voltage at cold junction, and such p-n junction just can utilize the temperature difference between high temperature heat source and the low-temperature heat source that heat energy is directly changed into electric energy.The sense of current flows to hot junction by cold junction at n in extremely, flows to cold junction by the hot junction at p in extremely.The electromotive force of such p-n junction generation is very little, has only tens millivolts, a lot of such p-n junctions is connected be together in series, and just can obtain sufficiently high voltage, becomes a thermal generator.So obviously thermal generator does not have rotating part fully, and therefore operation is very reliable.
Bonfire aboundresources in the open air; Utilize bonfire very convenient through temperature difference electricity generation device for the digital equipment charging as thermal source; When in low temperature environment, warming oneself, just can reach the purpose of charging, be a kind of desirable outdoor generation mode so utilize the bonfire generating.
Referring to Fig. 1, the utility model comprises temperature difference electricity generation device and voltage stabilizing circuit.Temperature difference electricity generation device comprises cooling water tank 2, temperature-difference power generation module FD, fixed head 3, heat transfer silica gel layer 4, heat-conducting plate 5, heat accumulation plate 6; The input of voltage stabilizing circuit is connected with the output of semi-conductor thermo-electric generation module FD, and voltage stabilizing circuit is stabilized in 5V with the voltage of temperature-difference power generation module FD output.
Fixed head 3, heat-conducting plate 5 and heat accumulation plate 6 constitute a heat absorption base, and heat accumulation plate 6 is that diameter is 12cm, thickly is the iron plate of 2mm, is used to absorb the heat of bonfire; Heat-conducting plate 5 is that diameter is 12cm, thickly is the aluminium sheet of 0.5mm; Fixed head 3 is that diameter is 12cm, thickly is the plectane of 3.8mm, thermo-electric generation sheet installing hole and several wire casing that 3 length of sides to be arranged between wherein be 40mm, high 3.8mm.Fixed head 3, heat-conducting plate 5 and heat accumulation plate 6 contact closely, to obtain good heat-conducting effect.
The diameter of cooling water tank 2 is 12cm, the high 13cm of being, water tank the inside fills with water is as low-temperature receiver, and water tank bottom is sent out module FD with semiconductor temperature difference and contacted closely, sends out the cold junction temperature of module FD to reduce the temperature difference.
The model of the used thermo-electric generation sheet of temperature-difference power generation module FD of this device is TEG140, and the desirable temperature difference of design is 120 ℃, and density of heat flow rate is 3.75W/cm under this temperature difference
2Because the voltage that monolithic thermo-electric generation sheet produces under 120 ℃ of temperature difference conditions has only 3.5V, can not satisfy actual load request, therefore 3 plate thermo-electric generation sheets are together in series.The thermo-electric generation sheet is embedded in the fixed head 3 that thickness is 3.8mm.
The output voltage of semi-conductor thermo-electric generation module FD receives the influence of the module both sides temperature difference, and the voltage of the unstable output of the temperature difference just has fluctuation.If utilize open-air bonfire as thermal source, the influence that the flame of bonfire receives external environment is difficult to stable.The batter-charghing system of most of digital equipment all need provide stable 5V direct current, so in charging system, need a voltage stabilizing circuit.
Because the temperature of bonfire is greatly about about 560 ℃, and the maximum temperature that the thermo-electric generation sheet is allowed is 240 ℃, so this device utilizes heat transfer silica gel layer 4 that the hot-side temperature of thermo-electric generation sheet is reduced to about 200 ℃.The thermo-electric generation sheet contacts with the bottom of cooling water tank 2 closely, and heat is passed to the water in the cooling water tank 2.Make thermo-electric generation sheet two ends produce about 120 ℃ the temperature difference, so just can make every voltage about thermo-electric generation sheet output 3.5V.
Referring to Fig. 2, C1 and C2 are 50V/330
alminium electrolytic condenser; D1 is that model is the voltage stabilizing didoe of IN5238; D2 is that model is the voltage stabilizing didoe of IN4730; Three-port variable voltage regulator U1 adopts LM317; R1 be 200
resistance; R2 be 10
resistance; LED1 is that model is the common yellow light-emitting diode of 5Y4SC; LED2 is that model is the red common light-emitting diode of N35324.
When output voltage does not have electric current to be equivalent to open circuit among the second voltage stabilizing didoe D2 during less than 5V; When output end voltage during greater than 5V the second voltage stabilizing didoe D2 be reversed puncture, so output voltage keeps 5V when input voltage increases always, play pressure stabilization function.
When the common LED of yellow 1 is bright, explain that the input voltage of voltage stabilizing circuit is higher than 10V, for the fail safe that guarantees electricity generation module must stop the heating to electricity generation module.
Send out normal optical diode (LED) 2 when bright when redness, at this moment the output voltage stabilization that voltage stabilizing circuit is described just can charge to digital equipment at 5V.
Claims (6)
1. portable digital equipment field emergency charging device; It is characterized in that; Said device is made up of temperature difference electricity generation device and voltage stabilizing circuit (7); Said temperature difference electricity generation device comprises temperature-difference power generation module (FD), fixed head (3), cooling water tank (2), heat-conducting plate (5) and heat accumulation plate (6); Said temperature-difference power generation module (FD) is embedded in fixed head (3) middle part, and its hot junction absorbs heat through heat-conducting plate (5) and the heat accumulation plate (6) that is fixed on fixed head (3) bottom from thermal source successively; Cold junction closely contacts with the cooling water tank (2) that is fixed on fixed head (3) top, and the electric energy output end of temperature-difference power generation module (FD) connects the input of voltage stabilizing circuit (7), and the output of voltage stabilizing circuit connects external electric equipment.
2. according to the said portable digital equipment field emergency of claim 1 charging device, it is characterized in that said temperature-difference power generation module (FD) is made up of three thermo-electric generation sheets that are connected in series, said thermo-electric generation sheet adopts TEG140.
3. according to claim 1 or 2 said portable digital equipment field emergency charging devices; It is characterized in that; Said voltage stabilizing circuit (7) comprises three-port variable voltage regulator (U1), first resistance (R1), second resistance (R2), input filter capacitor (C1) and output filter capacitor (C2); The output of the input termination temperature-difference power generation module (FD) of said three-port variable voltage regulator (U1) also is provided with input filter capacitor (C1); Output termination digital equipment (8) also is provided with output filter capacitor (C2); First resistance (R1) and second resistance (R2) are connected into the output that bleeder circuit is connected to three-port variable voltage regulator (U1), and the voltage division signal of their serial connections point output connects the feedback signal input of three-port variable voltage regulator (U1).
4. according to the said portable digital equipment field emergency of claim 3 charging device; It is characterized in that; Input at three-port variable voltage regulator (U1) is provided with the overvoltage warning circuit; Said overvoltage warning circuit is made up of first light-emitting diode (LED1) and first voltage stabilizing didoe (D1), is connected to the input of three-port variable voltage regulator (U1) after the two is connected in series.
5. according to the said portable digital equipment field emergency of claim 4 charging device; It is characterized in that; Output at three-port variable voltage regulator (U1) is provided with the charging voltage indicating circuit; Said charging voltage indicating circuit is made up of second light-emitting diode (LED2) and second voltage stabilizing didoe (D2), is connected to the output of three-port variable voltage regulator (U1) after the two is connected in series.
6. according to the said portable digital equipment field emergency of claim 5 charging device, it is characterized in that, between temperature-difference power generation module (FD) and heat-conducting plate (5), be provided with heat transfer silica gel layer (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203188476U CN202282750U (en) | 2011-08-29 | 2011-08-29 | Portable digital equipment field emergency charging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203188476U CN202282750U (en) | 2011-08-29 | 2011-08-29 | Portable digital equipment field emergency charging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202282750U true CN202282750U (en) | 2012-06-20 |
Family
ID=46228901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203188476U Expired - Fee Related CN202282750U (en) | 2011-08-29 | 2011-08-29 | Portable digital equipment field emergency charging device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202282750U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105048616A (en) * | 2015-07-22 | 2015-11-11 | 陕西凌云电器集团有限公司 | Emergency charging device utilizing temperature difference of field heat source to generate electricity |
-
2011
- 2011-08-29 CN CN2011203188476U patent/CN202282750U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105048616A (en) * | 2015-07-22 | 2015-11-11 | 陕西凌云电器集团有限公司 | Emergency charging device utilizing temperature difference of field heat source to generate electricity |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120620 Termination date: 20120829 |