CN104201734A - Charging system, charging bearing device and wearing equipment - Google Patents

Charging system, charging bearing device and wearing equipment Download PDF

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Publication number
CN104201734A
CN104201734A CN201410398451.5A CN201410398451A CN104201734A CN 104201734 A CN104201734 A CN 104201734A CN 201410398451 A CN201410398451 A CN 201410398451A CN 104201734 A CN104201734 A CN 104201734A
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China
Prior art keywords
charging
unit
connects
charged state
circuit
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CN201410398451.5A
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CN104201734B (en
Inventor
王佳
郭伟
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Weihai Regional Innovation Center Co.,Ltd.
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Huizhou TCL Mobile Communication Co Ltd
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Priority to CN201410398451.5A priority Critical patent/CN104201734B/en
Publication of CN104201734A publication Critical patent/CN104201734A/en
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Abstract

The invention discloses a charging device. The charging device comprises a charging bearing device and wearing equipment; the charging bearing device comprises a power supply, a charging state indicating circuit and a first contact area which are sequentially connected; the wearing equipment comprises a second contact area, a charging circuit and a battery which are sequentially connected; after the power supply is electrified, the charging state indicating circuit is displayed in a charging state, and is connected with the second contact area through the first contact area in a contact way, and the charging circuit is used for charging the battery. By adopting the way, the charging device provided by the invention can display the charging state under the condition that the wearing equipment is completely out of power, and the charging device is utilized to remind a user and does not depend on the wearing equipment, therefore, an equipment fault or an operating error mistaken by a user can be prevented.

Description

Charging system, charging bogey and wearing equipment
Technical field
The present invention relates to charging device field, particularly relate to charging system, charging bogey and wearing equipment.
Background technology
Along with being on the increase of the equipment of wearing, people are also more frequent to the use of wearing equipment, and for electronic equipment, charging is unavoidable.
Prior art does not have completely under electric state battery is inserted after charging device at battery, again by charging device plug-in and then when battery is charged, because the voltage of the battery under this state is very low, after charging, need a few minutes cell voltages to raise, the corresponding charged state indicating circuit of charging device could be opened, and charging instruction could show.This will cause charging device fault to user, the illusion that can not charge, or think that incorrect the causing of mode of operation of oneself can not charge.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of charging system, charging bogey and wearing equipment, can not have electricity or electric weight to show in time charged state too low in the situation that completely at wearing equipment.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: a kind of charging system is provided, comprises: charging bogey, and charging bogey comprises the power interface, charged state indicating circuit, the first contact zone that connect successively; Wearing equipment, wearing equipment comprises the second contact zone, charging circuit, the battery that connect successively; Wherein, the first contact zone is for being electrically connected with the second contact zone, in the time of charging, power interface is connected extraneous power supply, charged state indicating circuit is connected extraneous power supply and is shown charged state according to power interface, and the demonstration of charged state does not also rely on the size of battery electric quantity or has or not, and charging circuit starts battery to charge.
Wherein, charged state indicating circuit comprises the first input unit, the first display unit, boosting unit, the first output unit that connect successively, and the first input unit connects power interface, and the first output unit connects the first contact zone; The first input unit is used for accessing voltage; The first display unit shows immediately charged state after accessing voltage at the first input unit, and does not rely on the size of battery electric quantity or have or not; Boosting unit is used for raising circuit voltage to assign thresholds; The first output unit user exports the burning voltage of size for assign thresholds;
Wherein, display unit comprises: light-emitting diode and the first electric capacity; The first end of light-emitting diode connects the first end of input unit and the first electric capacity, the second end ground connection of the first electric capacity; Boosting unit comprises: the chip that boosts, inductance, the second electric capacity, the first resistance and the second resistance; Wherein, the chip that boosts comprises CS pin, VIN pin, SW pin, FB pin, GND pin, CS pin connects input unit, the second end of VIN pin connecting luminous diode, SW pin connects the first end of inductance, and the second end of inductance connects output unit, the first end of the first resistance and the first end of the second electric capacity, and FB pin connects the second end of the first resistance and the first end of the second resistance, GND pin connects the second end of the second resistance and the second end of the second electric capacity, GND pin ground connection.
Wherein, charged state indicating circuit comprises the second input unit, comparing unit and second output unit of the second display unit, connection successively, the second input unit connects power interface, and the second output unit connects the first contact zone, and the second display unit connects the second input unit and comparing unit; Wherein, the second input unit is used for accessing voltage; The second output unit is for stable output voltage; Comparing unit is used for comparing the voltage difference of the second input unit and the second output unit, and controls the second display unit; The second display unit is used for showing charged state.
Wherein, the first contact zone comprises positive and negative two metal contacts; Positive metal contact connects the positive pole in power interface, and negative metal contact connects the negative pole in power interface; The second contact zone comprises reset RST, input 5V_IN, tri-metal contacts of ground connection GND; Wherein, when input 5V_IN connects positive metal contact, charging circuit is charged, ground connection GND connects negative metal contact ground connection, and charging circuit forms the first loop.
Wherein, wearing equipment comprises a RST circuit, and the first end of RST circuit connects reset RST metal contact, the second end ground connection of RST circuit; Wherein, when input 5V_IN contact point connects positive metal contact, reset RST connects negative metal contact ground connection, and charging circuit and RST circuit form second servo loop.
For solving the problems of the technologies described above, another technical solution used in the present invention is: a kind of charging bogey is provided.
Wherein, charging bogey comprises the power interface, charged state indicating circuit, the first contact zone that connect successively; Wherein, after power interface energising, charged state indicating circuit shows charged state, and connects ancillary equipment charging by the first contact zone contact; When charging power interface connect extraneous power supply, charged state indicating circuit is connected extraneous power supply and is shown charged state according to power interface, and the demonstration of charged state and do not rely on ancillary equipment battery electric quantity size or have or not.
Wherein, charged state indicating circuit comprises the first input unit, the first display unit, boosting unit, the first output unit that connect successively, and the first input unit connects power supply, and the first output unit connects the first contact zone;
Wherein, the first input unit is used for accessing voltage; The first display unit shows immediately charged state after accessing voltage at the first input unit, and does not rely on the size of battery electric quantity or have or not; Boosting unit is used for raising circuit voltage to assign thresholds; The first output unit user exports the burning voltage of size for assign thresholds.
Wherein, charged state indicating circuit comprises the second input unit, comparing unit and second output unit of the second display unit, connection successively, the second input unit connects power interface, and the second output unit connects the first contact zone, and the second display unit connects the second input unit and comparing unit;
Wherein, the second input unit is used for accessing voltage; The second output unit is for stable output voltage; Comparing unit is used for comparing the voltage difference of the second input unit and the second output unit, and controls the second display unit; The second display unit is used for showing charged state.
The invention has the beneficial effects as follows: the situation that is different from prior art, the present invention by arranging charged state indicating circuit on charging bogey, make just can show in the time connecting at power supply charged state, and do not rely on the electric weight of charging device, avoid causing equipment fault or the incorrect illusion of mode of operation to user.
Brief description of the drawings
Fig. 1 is the structural representation of charging system the first execution mode of the present invention;
Fig. 2 is the schematic flow sheet of charging system the first execution mode of the present invention;
Fig. 3 is the structural representation of charging system the second execution mode of the present invention;
Fig. 4 is the schematic flow sheet of charging system the second execution mode of the present invention;
Fig. 5 is the concrete implementing circuit of charging system the second execution mode of the present invention;
Fig. 6 is the structural representation of charging system of the present invention the 3rd execution mode;
Fig. 7 is the schematic flow sheet of charging system of the present invention the 3rd execution mode;
Fig. 8 is the concrete implementing circuit of charging system of the present invention the 3rd execution mode;
Fig. 9 is the structural representation of charging system of the present invention the 4th execution mode;
Figure 10 is the charge structural representation of bogey the first execution mode of the present invention.
Embodiment
Consult Fig. 1, charging system the first execution mode of the present invention comprises:
Charging bogey 110, charging bogey 110 comprises the power interface 111, charged state indicating circuit 112, the first contact zone 113 that connect successively;
Wearing equipment 120, wearing equipment 120 comprises the second contact zone 121, charging circuit 122, the battery 123 that connect successively;
As shown in Figure 2, the concrete implementation step of present embodiment is as follows:
Step 201: the first contact zone 113 is electrically connected with the second contact zone 121;
The first contact zone 113 and the second contact zone 121 adopt conductive metallic material, and the mode of electrical connection can be the Elastic Contact of contact zone, also a contact zone wherein can be arranged to groove contact and connect; The first contact zone 113 can be set to contact zone fixing or that movably form adapts to different wearing equipment so that preparation contact.
Step 202: power interface 111 is switched on;
Power interface 111 can be conventional power source interface or USB interface, also can be replaced by the plug of integrated power line or similar universal charger.
Step 203: charged state indicating circuit 112 shows charged state, charging circuit 122 starts battery 123 to charge.
Charged state indicating circuit 112 can show immediately charged state in the time that power interface 111 is switched on, also can detect electric current and start to show when battery 123 is charged charged state at charging circuit 122 by increasing testing circuit, show that charged state can adopt general LED, also can adopt other luminous or sounding can play the device of warning function;
Meanwhile, step 201 can exchange with step 202.
Be different from prior art, present embodiment by arranging charged state indicating circuit on charging bogey, make in the time connecting, just can show charged state at power supply, and do not rely on the electric weight of charging device, avoid causing equipment fault or the incorrect illusion of mode of operation to user.
Consult Fig. 1 and Fig. 3, charging system the second execution mode of the present invention comprises:
Charging bogey 110, charging bogey 110 comprises the power interface 111, charged state indicating circuit 112, the first contact zone 113 that connect successively;
Wearing equipment 120, wearing equipment 120 comprises the second contact zone 121, charging circuit 122, the battery 123 that connect successively;
Wherein, charged state indicating circuit 112 comprises the first input unit 1121, the first display unit 1122, boosting unit 1123, the first output unit 1124 that connect successively, the first input unit 1121 connects power interface 111, the first output units 1124 and connects the first contact zone 113;
As shown in Figure 4, the concrete implementation step of present embodiment is as follows:
Step 401: the first input unit 1121 accesses voltage;
Step 402: the first display unit 1122 shows immediately charged state after the first input unit 1121 accesses voltage;
The first display unit can adopt general LED, also can adopt other luminous or sounding can play the device of warning function.
Step 403: boosting unit 1123 rising circuit voltages are to assign thresholds;
Electric current produces pressure drop after the first display unit 1122, and boosting unit 1123 is for raising voltage to return to the given voltage threshold value that is applicable to the equipment of dressing.This boosting unit 1123 can be that boost circuit or the transforming circuit etc. of chip composition plays the circuit of boosting.
Step 404: the first output unit 1124 output sizes are the burning voltage of assign thresholds.
As shown in Figure 5, present embodiment concrete implementing circuit comprises:
The first input unit 1121, the first display unit 1122, boosting unit 1123, the first output unit 1124 that connect successively;
Display unit 1122 comprises light-emitting diode 501 and the first electric capacity 502; The first end of light-emitting diode 501 connects the first end of input unit 1121 and the first electric capacity 502, the second end ground connection of the first electric capacity 502;
Boosting unit 1123 comprises: the chip 503 that boosts, inductance 504, the second electric capacity 507, the first resistance 505 and the second resistance 506;
Wherein, the chip 503 that boosts comprises CS pin, VIN pin, SW pin, FB pin, GND pin, CS pin connects input unit 1121, the second end of VIN pin connecting luminous diode 501, SW pin connects the first end of inductance 504, the second end of inductance 504 connects output unit 1124, the first end of the first resistance 505 and the first end of the second electric capacity 506, FB pin connects the second end of the first resistance 505 and the first end of the second resistance 506, GND pin connects the second end of the second resistance 506 and the second end of the second electric capacity 507, GND pin ground connection.
Wherein, 5V_IN connects power interface 111, has voltage and current input, and light-emitting diode 501 gets final product work, shinny, instruction charging; Lower voltage after light-emitting diode 501 is luminous, the chip 503 of selecting to boost boosts to 5V, and chip 503 output currents that boost can be according to the demand output of load, and voltage stabilization output 5V, can not dragged down by load; 5V_OUT is connected on the second contact zone 121 of wearable device 120 by the first contact zone 113, and three metal dots that leak outside are chargeable.
The execution mode of this circuit as shown in Figure 4, repeats no more here; This circuit just as an example, is a kind of implementing circuit in present embodiment, does not limit the protection range of present embodiment.
Be different from prior art, present embodiment adopts the mode that directly increases display unit and boosting unit between input and output, can in switching on power, show charged state, boosting unit also can time stabilized input voltage reach satisfied charging effect; Make display unit not rely on the electric weight of wearing equipment, even if wearing equipment does not have electricity completely, also can show charged state, avoid user to take for equipment fault or operating mistake.
Consult Fig. 1 and Fig. 6, the 3rd execution mode of charging system of the present invention comprises:
Charging bogey 110, charging bogey 110 comprises the power interface 111, charged state indicating circuit 112, the first contact zone 113 that connect successively;
Wearing equipment 120, wearing equipment 120 comprises the second contact zone 121, charging circuit 122, the battery 123 that connect successively;
Wherein, charged state indicating circuit 112 comprises the second input unit 1126, comparing unit 1127 and second output unit 1128 of the second display unit 1129, connection successively, the second input unit 1126 connects power interface 111, the second output unit 1128 connects the first contact zone 113, the second display units 1129 and connects the second input unit 1126 and comparing unit 1127;
As shown in Figure 7, the concrete implementation step of present embodiment is as follows:
Step 701: the second input unit 1126 accesses voltage;
Step 702: the second output unit 1128 stable output voltages;
Step 703: comparing unit 1127 is the voltage difference of the second input units 1126 and the second output unit 1128 relatively, and control the second display unit 1129 and show charged state;
When the second input unit 1126 accesses after power interface 111 energisings, electric current flows into the second output unit 1128 by comparing unit 1127, the electrical potential differences that 1127 of comparing units flow into comparing unit 1127 by electric current relatively and flow out comparing unit 1127 have judged whether electric current process, if having electric current through; control the second display unit 1129 and show charged state; Only in the time that electric current is flowed through comparing unit 1127, the second display unit 1129 just shows charged state, and in other words, only, in the time of charging, the second display unit 1129 just shows charged state.
Step 704: the second display unit 1129 shows charged state.
As shown in Figure 8, present embodiment concrete implementing circuit comprises:
The first end of resistance 802 connects input voltage 5V_IN, the second end of resistance 802 connects output voltage 5V_OUT, the first end of resistance 802 also connects the IN+ pin of comparator 801, the second end of resistance 802 also connects the IN-pin of comparator 801, the OUT pin of comparator 801 connects the grid of metal-oxide-semiconductor 803, the source ground of metal-oxide-semiconductor 803, the drain electrode of metal-oxide-semiconductor connects input voltage 5V_IN by a light-emitting diode 804 and a resistance 805, and remaining circuit structure is as shown in Figure 8.
Wherein, when connecting 5V_OUT to dressing equipment charge by resistance 802 after 5V_IN access voltage, the resistance of resistance 802 is very little, does not affect output voltage; The electric current at resistance 802 two ends is flowed into and is compared by IN+ pin and the IN-pin of comparator 801 respectively, in the time that resistance 802 does not have electric current to flow through, do not start charging or charged, the OUT pin of comparator 801 does not have electric current output, be that metal-oxide-semiconductor 803 does not have conducting, light-emitting diode 804 does not show charged state; In the time that resistance 802 has electric current to flow through, charge, the OUT pin of comparator 801 has electric current output, and very large through the amplification output current of comparator 801, now metal-oxide-semiconductor 803 conductings, light-emitting diode 804 shows charged state; The size of resistance 805 resistances can be for regulating the brightness of light-emitting diode 804.
The execution mode of this circuit as shown in Figure 7, repeats no more here; This circuit just as an example, is a kind of implementing circuit in present embodiment, does not limit the protection range of present embodiment.
Be different from prior art, present embodiment adopts the mode that directly increases comparing unit between input and output, can electric current by time just show charged state, the electric current that display unit detects according to comparing unit shows charged state by state, make display unit just show charged state in the time of charging, do not put into after wearing equipment or charging finish and do not show charged state; And charged state instruction does not rely on the electric weight of wearing equipment, even if wearing equipment does not have electricity completely, can show charged state yet, avoids user to take for equipment fault or operating mistake.
Consult Fig. 1 and Fig. 9, the 4th execution mode of charging system of the present invention comprises:
Charging bogey 110, charging bogey 110 comprises the power interface 111, charged state indicating circuit 112, the first contact zone 113 that connect successively;
Wearing equipment 120, wearing equipment 120 comprises the second contact zone 121, charging circuit 122, the battery 123 that connect successively;
Wherein, the first contact 113rd district comprise positive metal contact 1132 and negative metal contact 1131; The second contact zone 121 comprises reset 1213, input 1212,1,211 three metal contacts of ground connection;
Wherein, positive metal contact 1132 connects the positive pole in power interface 111, and negative metal contact 1131 connects the negative pole in power interface 111;
Wearing equipment 120 also comprises a RST circuit 124, and the first end of RST circuit 124 connects reset RST metal contact 1213, the second end ground connection of RST circuit 124;
When input 5V_IN contact point 1212 connects positive metal contact 1132, ground connection 1211 connects negative metal contact 1131, forms the first loop, and now charging circuit 122 charges normal battery 123; When input 5V_IN contact point 1212 connects positive metal contact 1232, the negative metal contact 1131 of 1213 connection resets, dressing equipment 120 oppositely inserts in charging bogey 110, now, form second servo loop, owing to there being the existence of RST circuit 124, oppositely insertion can not affect the performance of wearing equipment 120, but can not charge to battery 123.
In addition, RST circuit also can increase the components and parts such as reset chip, metal-oxide-semiconductor and wearing equipment 120 is immersed in the water also can normally work.
The concrete implementation step of present embodiment and the first execution mode of charging system of the present invention are similar, repeat no more here.
Be different from prior art; present embodiment by increasing RST circuit in wearing equipment; during to direction insertion or equipment immersion water, play a protective role; and charged state instruction does not rely on the electric weight of wearing equipment; even if wearing equipment does not have electricity completely; also can show charged state, avoid user to take for equipment fault or operating mistake.
Consult Figure 10, charge the first execution mode of bogey of the present invention comprises:
The power interface 1001, charged state indicating circuit 1002, the first contact zone 1003 that connect successively;
Wherein, charged state indicating circuit 1002 can be any of charged state indicating circuit in the second execution mode or the 3rd execution mode, can be also other circuit with instruction charged state function.
The concrete implementation step of present embodiment and first, second execution mode of charging system of the present invention are similar, repeat no more here.
Be different from prior art, present embodiment adopts the mode that directly increases display unit and boosting unit between input and output, can in switching on power, show charged state, boosting unit also can time stabilized input voltage reach satisfied charging effect; Make display unit not rely on the electric weight of wearing equipment, even if wearing equipment does not have electricity completely, also can show charged state, avoid user to take for equipment fault or operating mistake.
The foregoing is only embodiments of the present invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes specification of the present invention and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.

Claims (8)

1. a charging system, is characterized in that, comprising:
Charging bogey, described charging bogey comprises the power interface, charged state indicating circuit, the first contact zone that connect successively;
Wearing equipment, described wearing equipment comprises the second contact zone, charging circuit, the battery that connect successively;
Wherein, described the first contact zone is for being electrically connected with described the second contact zone, described in the time of charging, power interface is connected extraneous power supply, described charged state indicating circuit is connected extraneous power supply and is shown charged state according to described power interface, and the demonstration of described charged state does not also rely on the size of described battery electric quantity or has or not, and described charging circuit starts described battery charging.
2. charging system according to claim 1, it is characterized in that, described charged state indicating circuit comprises the first input unit, the first display unit, boosting unit, the first output unit that connect successively, described the first input unit connects described power interface, and described the first output unit connects described the first contact zone;
Wherein, described the first input unit is used for accessing voltage;
Described the first display unit shows immediately charged state after accessing voltage at described the first input unit, and does not rely on the size of described battery electric quantity or have or not;
Described boosting unit is used for raising circuit voltage to assign thresholds;
Described the first output unit is for exporting the burning voltage of size for described assign thresholds.
3. charging system according to claim 2, is characterized in that,
Described display unit comprises: light-emitting diode and the first electric capacity; Wherein, the first end of described light-emitting diode connects the first end of described input unit and described the first electric capacity, the second end ground connection of described the first electric capacity;
Described boosting unit comprises: the chip that boosts, inductance, the second electric capacity, the first resistance and the second resistance, wherein, the described chip that boosts comprises CS pin, VIN pin, SW pin, FB pin, GND pin, described CS pin connects input unit, described VIN pin connects the second end of described light-emitting diode, described SW pin connects the first end of described inductance, the second end of described inductance connects described output unit, the first end of the first end of the first resistance and the second electric capacity, described FB pin connects the second end of described the first resistance and the first end of described the second resistance, described GND pin connects the second end of described the second resistance and the second end of the second electric capacity, described GND pin ground connection.
4. charging system according to claim 1, it is characterized in that, described charged state indicating circuit comprises the second input unit, comparing unit and second output unit of the second display unit, connection successively, described the second input unit connects described power interface, described the second output unit connects described the first contact zone, and described the second display unit connects described the second input unit and described comparing unit;
Wherein, described the second input unit is used for accessing voltage;
Described the second output unit is for stable output voltage;
Described comparing unit is used for the voltage difference of more described the second input unit and the second output unit, and controls described the second display unit;
Described the second display unit is used for showing charged state.
5. charging system according to claim 1, is characterized in that,
Described the first contact zone comprises positive and negative two metal contacts;
Wherein, described positive metal contact connects the positive pole in described power interface, and described negative metal contact connects the negative pole in described power interface;
Described the second contact zone comprises reset RST, input 5V_IN, tri-metal contacts of ground connection GND;
Described wearing equipment comprises a RST circuit, and the first end of described RST circuit connects described reset RST metal contact, the second end ground connection of described RST circuit;
When described input 5V_IN connects positive metal contact, described charging circuit is charged, described ground connection GND connects described negative metal contact ground connection, and described charging circuit forms the first loop;
When described input 5V_IN contact point connects positive metal contact, described reset RST connects described negative metal contact ground connection, and described charging circuit and described RST circuit form second servo loop.
6. a charging bogey, is characterized in that, described charging bogey comprises the power interface, charged state indicating circuit, the first contact zone that connect successively;
Wherein, after described power interface energising, described charged state indicating circuit shows charged state, and connects ancillary equipment charging by described the first contact zone contact;
Described in the time of charging, power interface is connected extraneous power supply, described charged state indicating circuit is connected extraneous power supply and is shown charged state according to described power interface, and the demonstration of described charged state and do not rely on described ancillary equipment battery electric quantity size or have or not.
7. charging device according to claim 6, it is characterized in that, described charged state indicating circuit comprises the first input unit, the first display unit, boosting unit, the first output unit that connect successively, described the first input unit connects described power supply, and described the first output unit connects described the first contact zone;
Wherein, described the first input unit is used for accessing voltage;
Described the first display unit shows immediately charged state after accessing voltage at described the first input unit, and does not rely on the size of described battery electric quantity or have or not;
Described boosting unit is used for raising circuit voltage to assign thresholds;
Described the first output unit user exports the burning voltage of size for described assign thresholds.
8. charging device according to claim 6, it is characterized in that, described charged state indicating circuit comprises the second input unit, comparing unit and second output unit of the second display unit, connection successively, described the second input unit connects described power interface, described the second output unit connects described the first contact zone, and described the second display unit connects described the second input unit and described comparing unit;
Wherein, described the second input unit is used for accessing voltage;
Described the second output unit is for stable output voltage;
Described comparing unit is used for the voltage difference of more described the second input unit and the second output unit, and controls described the second display unit;
Described the second display unit is used for showing charged state.
CN201410398451.5A 2014-08-13 2014-08-13 Charging system, charging bogey and wearable device Active CN104201734B (en)

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CN104201734B CN104201734B (en) 2017-08-11

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101877495A (en) * 2009-04-30 2010-11-03 深圳富泰宏精密工业有限公司 Charging indication circuit and portable electronic device applying same
CN201829991U (en) * 2010-11-02 2011-05-11 丛东升 Intelligent mobile phone battery charger
CN201839019U (en) * 2009-08-24 2011-05-18 珈伟太阳能科技(上海)有限公司 Low-voltage boosting charge device
CN202856409U (en) * 2012-10-10 2013-04-03 惠州市米琦通信设备有限公司 Mobile phone boost charging wire and mobile phone charging system
CN103151818A (en) * 2013-03-21 2013-06-12 上海斐讯数据通信技术有限公司 Charging indicating system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101877495A (en) * 2009-04-30 2010-11-03 深圳富泰宏精密工业有限公司 Charging indication circuit and portable electronic device applying same
CN201839019U (en) * 2009-08-24 2011-05-18 珈伟太阳能科技(上海)有限公司 Low-voltage boosting charge device
CN201829991U (en) * 2010-11-02 2011-05-11 丛东升 Intelligent mobile phone battery charger
CN202856409U (en) * 2012-10-10 2013-04-03 惠州市米琦通信设备有限公司 Mobile phone boost charging wire and mobile phone charging system
CN103151818A (en) * 2013-03-21 2013-06-12 上海斐讯数据通信技术有限公司 Charging indicating system

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