CN202172923U - Low-power consumption heat preservation functional shoe - Google Patents
Low-power consumption heat preservation functional shoe Download PDFInfo
- Publication number
- CN202172923U CN202172923U CN2011203080565U CN201120308056U CN202172923U CN 202172923 U CN202172923 U CN 202172923U CN 2011203080565 U CN2011203080565 U CN 2011203080565U CN 201120308056 U CN201120308056 U CN 201120308056U CN 202172923 U CN202172923 U CN 202172923U
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- circuit
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- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B3/00—Footwear characterised by the shape or the use
- A43B3/34—Footwear characterised by the shape or the use with electrical or electronic arrangements
- A43B3/36—Footwear characterised by the shape or the use with electrical or electronic arrangements with light sources
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- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B3/00—Footwear characterised by the shape or the use
- A43B3/34—Footwear characterised by the shape or the use with electrical or electronic arrangements
- A43B3/35—Footwear characterised by the shape or the use with electrical or electronic arrangements with electric heating arrangements
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B3/00—Footwear characterised by the shape or the use
- A43B3/34—Footwear characterised by the shape or the use with electrical or electronic arrangements
- A43B3/38—Footwear characterised by the shape or the use with electrical or electronic arrangements with power sources
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Abstract
The present utility model relates to a low-power consumption heat preservation functional shoe which comprises a shoe body, and an electrothermal sheet, a cell and a control circuit arranged on the shoe body. The shoe is characterized in that the control circuit successively comprises a cell, a switch, a voltage-stabilized power supply circuit, a temperature setting circuit, an intermittent drive circuit and a load which are connected in series, the intermittent drive circuit is controlled by an over-discharge and over-current short circuit protection circuit, and the voltage-stabilized power supply circuit is used for providing a working power supply for various modules. The shoe has the characteristics of simple circuit structure, reasonable design and low power consumption, the control mechanism of driving the electrothermal sheet to work intermittently is adopted, the working time of a lithium cell is largely prolonged, and the reliable and constant heat preservation effect within effective time can be realized for users.
Description
Technical field:
The utility model belongs to the small stores field, particularly a kind of low-power consumption heat insulation function footwear.
Background technology:
The people that the heat insulation function footwear are used to the to be provided at cold zone articles for use that keep out the cold, its structure includes the footwear main body, is installed in electric heating piece, battery and control circuit on the footwear main body, and by the powered battery that carries, the electric heating piece heating keeps having a stationary temperature in the footwear.How this problem of company's further investigation surplus the whole nation has 30 at present further researches and develops a kind of have high reliability, low-power consumption heat-insulating shoe from practicality, just become the aim of this problem.
Summary of the invention:
The purpose of the utility model is a kind of low-power consumption heat insulation function footwear that adopt the work of intermittent driving electric heating piece of design.
The utility model technical scheme is achieved in that a kind of low-power consumption heat insulation function footwear; Comprise the footwear main body, be installed in electric heating piece, battery and control circuit on the footwear main body, it is characterized in that: control circuit comprises battery, switch, voltage-stabilized power supply circuit, temperature setting circuit successively, intermittently drive circuit and load serial connection form; Drive circuit was controlled by and let slip the flow short-circuit holding circuit described intermittence, and voltage-stabilized power supply circuit provides the corresponding module working power.
Said temperature setting circuit comprises touch circuit and temperature selection circuit; Touching circuit is made up of touch pad M, triode Q1, Q2, resistance R 2; Temperature selects circuit by ic chip 1, resistance R 2, R3, R4, R5, and triode Q3, Q4, capacitor C 1, diode D1 form.
Said intermittence, drive circuit was by ic chip 2, resistance R 6, R7, RO, and sensor NTC, capacitor C 2, LED 1, LED2 and resistance R 8 are formed.
Said mistake is let slip the flow short-circuit holding circuit by ic chip 3, resistance R 11, R12, R13, R14, R15, R16, R17, and triode Q5, Zener diode DW2, diode D2, D3 form.
The utlity model has circuit structure characteristics simple, reasonable in design, low in energy consumption; Adopt the intermittent controlling mechanism that drives electric heating piece work, can prolong the working time of lithium battery greatly, realized the user in effective time, all the time reliable, constant heat insulation effect can be arranged.
Description of drawings:
Below in conjunction with concrete legend the utility model is further specified:
Fig. 1 low-power consumption heat insulation function footwear theory diagram
Fig. 2 low-power consumption heat insulation function footwear body circuit theory diagrams
The specific embodiment:
With reference to Fig. 1; Low-power consumption heat insulation function footwear; Comprise the footwear main body, be installed in electric heating piece and control circuit on the footwear main body, omit function footwear main body, wherein control circuit among the figure: comprise battery, switch, voltage-stabilized power supply circuit, temperature setting circuit successively, intermittently drive circuit and load serial connection form; Drive circuit was controlled by and let slip the flow short-circuit holding circuit described intermittence, and voltage-stabilized power supply circuit provides each module working power (working power of temperature setting circuit perhaps only being provided, PLSCONFM).
With reference to Fig. 2, and combine Fig. 1, each functional module of control circuit is formed as follows:
Voltage-stabilized power supply circuit: by resistance R 14, R15, Zener diode DW1, DW2 form.
Temperature setting circuit: comprise touching circuit and temperature selection circuit; Wherein touching circuit is made up of touch pad M, triode Q1, Q2, resistance R 2; Temperature selects circuit by ic chip 1, and model is CD4017, resistance R 2, R3, R4, R5, and triode Q3, Q4, capacitor C 1, diode D1 form.
Drive circuit intermittently: by ic chip 2, model is TWH8778, resistance R 6, R7, RO, and sensor NTC, capacitor C 2, LED 1, LED2 and resistance R 8 are formed.
Cross and let slip the flow short-circuit holding circuit: by ic chip 3, model is LM393, resistance R 11, R12, R13, R14, R15, R16, R17, and triode Q5, Zener diode DW2, diode D2, D3 form.
Load: electric heating piece RL.
In this control circuit, the pilot lamp loop that also is provided with a K switch and is connected in series with resistance R 18 by LED 3; And charging inlet.
Circuit theory explanation: with reference to the circuit theory diagrams of Fig. 2:
As close switch K, pilot lamp loop gets electric, and LED 3 is through resistance R 18 current limlitings, and LED3 azarin light shows that complete machine gets the electrician and does.
When the 2nd pin of ic chip 1 is high level, add to triode Q3 base stage through resistance R 4 current limlitings, triode Q3 saturation conduction; Then positive source promptly collects emitter-base bandgap grading output high level through the C-e of triode Q3; In like manner, if the 4th pin of IC1 is Gao Ping, add to triode Q4 base stage through resistance R 5 current limlitings; Triode Q4 saturation conduction then, the C-e of triode Q4 promptly collect emitter-base bandgap grading output high level.Hand touches touch pad M, and triode Q3 output dc voltage one tunnel adds to resistance R 6 upper ends, and another road adds to LED 2 simultaneously, and through resistance R 8 current limlitings, at this moment, LED 2 is lighted, and shows that select maximum temperature value this moment is 39 ℃.
Hand touches touch pad M once more, triode Q4 output dc voltage, and this moment, triode Q3 ended, and the LED2 lamp extinguishes.When the Q4 emitter-base bandgap grading was high level, the one tunnel added to resistance R 7 upper ends, added one the tunnel through LED1 resistance R 8 current limlitings, and LED1 is bright, showed that temperature is selected at 42 ℃.
Triode Q3 emitter-base bandgap grading high level adds to resistance R 6; Sensor NTC loop is that partial pressure value appears in sensor NTC upper end at node, and this dividing potential drop adds to the 5th pin of IC2; Then the 2nd of ic chip 2 the, 3 pin parallel connections are high level, make load electric heating piece RL because of getting electric the heating.
Because of sensor NTC is close on the electric heating piece RL; Because sensor NTC is a subzero temperature characteristic element, receive in the thermal process, the resistance value of sensor NTC descends; By the node voltage that resistance R 7 is connected with sensor NTC, just the last terminal voltage of sensor NTC also reduces thereupon.
When this voltage descends and during less than the threshold values of the 5th pin of ic chip 2, the 2nd, 3 pin of ic chip 2 are low level, load electric heating piece RL dead electricity and stop heating; Because the thermal inertia result of electric heating piece makes it temperature and can not descend at once, after the insulation of a period of time; The electric heating piece temperature descends, and causes that sensor NTC resistance value rises, and resistance R 6 rises with sensor NTC series connection node voltage; When this voltage rises to the 5th foot valve value of ic chip 2, the circuit upset, high level appears again in the 2nd, 3 pin of ic chip 2; Load electric heating piece RL again electric heating, descend through heating sensor NTC resistance value, until the threshold values of drop-out voltage less than the 5th pin of ic chip 2; Load RL dead electricity again stops heating, and the electric heating piece RL that so goes round and begins again is presented on the process of fever on and off, constant temperature.
In like manner can analyze as triode Q3 and end, and triode Q4 emitter-base bandgap grading is when being high level, the series loop of resistance R 7 and sensor NTC gets electric, and the level value of sensor NTC upper end is greater than the threshold values of the 5th pin of ic chip 2; The 2nd, 3 pin of IC2 are high level, and load R2 gets electric and generates heat, when temperature rises to 42 ℃; Terminal voltage drops to the threshold values of the 5th pin of ic chip 2 on sensor NTC, and upset appears in ic chip 2, and ic chip 2 the 2nd, 3 pin are low level; Load electric heating piece RL dead electricity stops heating, and after electric heating piece thermal inertia in short-term, temperature descends gradually; Therefore sensor NTC resistance value rises, and at this moment, resistance R 7 rises with sensor NTC series connection node voltage; When greater than the 5th foot valve value of ic chip 2, then ic chip 2 circuit upset makes load RL electricity heating again.
So go round and begin again, electric heating piece be in all the time intermittently or the heating process no matter select which temperature retaining, electric heating piece all be in be interrupted electricity condition, it is extremely beneficial and the most rational therefore prolonging discharge time for lithium battery.
When quitting work, hand touches and touch pad M at last again, and the 7th pin of ic chip 1 is high level, and adds to the 15th pin through diode D1, and ic chip 1 zero clearing immediately resets, and the rear portion circuit quits work, and electric heating piece has not generated heat yet.
Can close K switch this moment, and indicator lamp LED3 extinguishes, and shows that whole circuit quit work fully, has avoided the unnecessary discharge of lithium battery.If; Lithium battery regular picture to output voltage is during less than 5.5 volts, and then the series connection partial pressure value of resistance R 12, R13 is less than resistance R 11 partial pressure value of connecting with diode D2, D3, when promptly the voltage of normal phase input end the 3rd pin of ic chip 3 is greater than inverting input the 2nd foot voltage; Ic chip 3 upsets; Output the 1st pin is high level, adds to the base stage of triode Q5 through resistance R 17 current limlitings, this moment the Q5 saturation conduction.Because the 5th pin that triode emitter grounding, colelctor electrode connect ic chip 2 then the 2nd pin of ic chip 2 is earth potential, even thirty years of age the 2nd, 3 pin are low level, then load RL quits work, and lithium battery stops heavy-current discharge, thereby has protected lithium battery.
When overcurrent appears in circuit, or short trouble causes that just the voltage of lithium battery main discharge circuit descends immediately, at this moment; The economize on electricity voltage of resistance R 12, R13 series connection also descends, and the inverting input voltage that ic chip 3 occurs is less than normal phase input end voltage, the upset of ic chip 3 circuit; Its output the 1st pin is high level, triode Q5 saturation conduction, and earth potential appears in the 5th pin of ic chip 2; The 2nd, 3 pin of IC2 are low level, load RL dead electricity, and lithium battery has stopped heavy-current discharge.
Therefore realize having protected at any time lithium battery to avoid destroying.
Claims (4)
1. low-power consumption heat insulation function footwear; Comprise the footwear main body, be installed in electric heating piece, lithium battery and control circuit on the footwear main body, it is characterized in that: control circuit comprises lithium battery, switch, voltage-stabilized power supply circuit, temperature setting circuit successively, intermittently drive circuit and load serial connection form; Drive circuit was controlled by and let slip the flow short-circuit holding circuit described intermittence, and voltage-stabilized power supply circuit provides each module working power.
2. low-power consumption heat insulation function footwear according to claim 1 is characterized in that: temperature setting circuit comprises touch circuit and temperature selection circuit; Touching circuit is made up of touch pad M, triode Q1, Q2, resistance R 2; Temperature selects circuit by ic chip 1, resistance R 2, R3, R4, R5, and triode Q3, Q4, capacitor C 1, diode D1 form.
3. low-power consumption heat insulation function footwear according to claim 1 is characterized in that: intermittently drive circuit is by ic chip 2, resistance R 6, R7, RO, and sensor NTC, capacitor C 2, LED 1, LED2 and resistance R 8 are formed.
4. low-power consumption heat insulation function footwear according to claim 1; It is characterized in that: cross and let slip the flow short-circuit holding circuit by ic chip 3, resistance R 11, R12, R13, R14, R15, R16, R17, triode Q5; Zener diode DW2, diode D2, D3 form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203080565U CN202172923U (en) | 2011-08-22 | 2011-08-22 | Low-power consumption heat preservation functional shoe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203080565U CN202172923U (en) | 2011-08-22 | 2011-08-22 | Low-power consumption heat preservation functional shoe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202172923U true CN202172923U (en) | 2012-03-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203080565U Expired - Fee Related CN202172923U (en) | 2011-08-22 | 2011-08-22 | Low-power consumption heat preservation functional shoe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202172923U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108011415A (en) * | 2017-11-28 | 2018-05-08 | 启攀微电子（上海）有限公司 | A kind of Power Management Unit chip of integrated battery protection |
-
2011
- 2011-08-22 CN CN2011203080565U patent/CN202172923U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108011415A (en) * | 2017-11-28 | 2018-05-08 | 启攀微电子（上海）有限公司 | A kind of Power Management Unit chip of integrated battery protection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120328 Termination date: 20170822 |