CN102185357A - USB (Universal Serial Bus) charger without standby loss - Google Patents
USB (Universal Serial Bus) charger without standby loss Download PDFInfo
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- CN102185357A CN102185357A CN2011101349073A CN201110134907A CN102185357A CN 102185357 A CN102185357 A CN 102185357A CN 2011101349073 A CN2011101349073 A CN 2011101349073A CN 201110134907 A CN201110134907 A CN 201110134907A CN 102185357 A CN102185357 A CN 102185357A
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- charger
- usb charger
- circuit
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Abstract
The invention relates to a USB (Universal Serial Bus) charger without standby loss, which comprises a shell, a folding type power supply plug, a circuit board and a USB interface, wherein the folding type power supply plug is installed on the shell; the circuit board is arranged in the shell; and the USB interface is connected with the circuit board. The USB charger is provided with a USB charger circuit without standby loss; a control switch, an alternating-current and direct-current circuit, a current sensor and an output circuit are connected in sequence; and a relay is respectively connected with the control switch and the current sensor. During charging, a control switch button is pressed, and an electrical appliance can be charged. When the electrical appliance finishes charging or does not need to be charged, the electrical appliance is taken down, the current sensor feeds a current-free signal back to the relay, the power supply is automatically switched off by the relay, and the USB charger does not generate standby loss. The USB charger disclosed by the invention can be connected with the power supply for a long term without generating standby loss, and therefore, the USB charger provides convenience for a user.
Description
Technical field
The present invention relates to a kind of USB charger, particularly relate to a kind of USB charger that does not have idling consumption.
Background technology
Existing charger comprises direct insertion charger and the charger with USB interface, and wherein direct insertion charger directly is inserted into and is the electrical equipment charging in the supply socket, but it can't be the electrical equipment charging by the USB connecting line.And existing charger with USB interface in use, it always is inserted into after the supply socket and keeps the power connection state, as long as its attaching plug is not pulled up, just always has electric current to pass through, cause its ceaselessly consumed power, therefore produced the idling consumption problem.Though it is very little to have the idling consumption power of charger of USB interface, if for a long time it is kept "on" position, then therefore consumed power continuously causes waste of electric energy.
At present, electric energy equal energy source day is becoming tight, and the idling consumption that reduces electric equipment has become a kind of objective demand of human society.
Summary of the invention
The present invention be intended to solve generally have USB interface charger under obsolete situation after the energising, still consumed power produces the idling consumption problem, and a kind of USB charger of no idling consumption of effectively saves energy is provided.
For achieving the above object, the invention provides a kind of USB charger that does not have idling consumption, this USB charger comprises housing, be contained in collapsible attaching plug on the housing, be contained in the housing wiring board and
The USB interface that is connected with wiring board, the USB charger of this no idling consumption are provided with no idling consumption USB charger circuit.
No idling consumption USB charger circuit comprises control switch, AC and DC change-over circuit, current sensor, output circuit and relay, control switch is the contact switch, current sensor is current transformer or detects resistance, relay is an electromagnetic relay, wherein, control switch is connected in the input of AC and DC change-over circuit, current sensor one end is connected with the output of AC and DC change-over circuit, the other end is connected with the input of output circuit, and relay links to each other with control switch and current sensor respectively.
Contribution of the present invention is, it efficiently solves general USB charger under obsolete situation after the energising and produce the idling consumption problem.Because the present invention is provided with devices such as control switch and current sensor, make this USB charger after charging is finished, it need not be pulled up from supply socket, and by current sensor and the automatic powered-down of relay, thereby the electric energy loss can effectively avoid standby the time, the conservation of power resource.The USB charger of no idling consumption of the present invention allows to be connected for a long time with power supply and not produce electric energy loss, can be the user and facilitates.
Description of drawings
Fig. 1 is a profile schematic diagram of the present invention.
Fig. 2 is that schematic perspective view is looked up in parts decomposition of the present invention.
Fig. 3 is that parts of the present invention decompose the top perspective schematic diagram.
Fig. 4 is a circuit block diagram of the present invention.
Embodiment
The following example is to further explanation of the present invention and explanation, and the present invention is not constituted any limitation.
No idling consumption USB charger of the present invention such as Fig. 1, Fig. 2 and shown in Figure 3, this USB charger comprises housing 10, collapsible attaching plug 20, wiring board 30 and USB interface 40.Described housing
10 by loam cake 11 and drain pan 12 the usefulness screw is involutory is formed by connecting.11 central authorities are provided with control switch 51 at loam cake, and this control switch 51 can be any known current-controlled switch, and in this example, control switch is the contact switch.Press control switch button 511, control switch contact 512 contacts with power contact 31 on the wiring board 30, makes circuit turn-on.Described attaching plug 20 is the folding attaching plug, and one end and drain pan 12 are hinged, and it can rotate freely 90 degree and two pins are stretched out in by drain pan 12 around hinged end.Be provided with groove 121 in drain pan 12 bottom outside, the length of this groove 121, width and the degree of depth and collapsible attaching plug 20 are complementary.This USB charger can be folding with attaching plug 20 when not using, and just is embedded in this groove 121 after attaching plug 20 folds.When needs charge, collapsible attaching plug 20 can be revolved and turn 90 degrees and stretch out from drain pan 12, this moment, itself and USB charger bottom surface were perpendicular, and the rear end of collapsible attaching plug 20 contacts and energized with spring clip 32 on the wiring board 30.As Fig. 1, Fig. 3, be provided with breach 122 in drain pan 12 1 sides, these breach 122 sizes and USB interface 40 sizes are complementary, USB interface 40 1 ends are connected with wiring board 30, the port of USB interface 40 then places in this breach 122, this USB interface 40 USB connecting line of can pegging graft is used to electrical equipment chargings such as mobile phone.
No idling consumption USB charger circuit 50 of the present invention as shown in Figure 4, this no idling consumption USB charger circuit 50 comprises control switch 51, AC and DC change-over circuit 52, current sensor 53, output circuit 54 and relay 55.Described control switch 51 is the contact switch, and the input that it is connected in AC and DC change-over circuit 52 is used to switch on or off power supply.Described current sensor 53 is current transformer or detection resistance, and the one end is connected with the output of AC and DC change-over circuit 52, and the other end is connected with the input of output circuit 54, is used to detect electric current and signal feedback.Described relay 55 is an electromagnetic relay, and it links to each other with control switch 51 and current sensor 53 respectively, is used for regulating automatically and circuit conversion.Described no idling consumption USB charger circuit 50 is located on the wiring board 30, and 30 of wiring boards are screwed in drain pan 12.
Described AC and DC change-over circuit 52 can be any known AC and DC change-over circuit that is applicable to charger, is bridge rectifier in this example.As Fig. 4, diode D1, D2, D3, D4 connect into rectifier bridge, and the rectifier bridge front end is connected with transformer, and the rear end links to each other with load resistance R.This friendship, straight
Stream translation circuit 52 is used for converting the alternating current after the step-down to direct current.
No idling consumption USB charger operation principle of the present invention as shown in Figure 4, when needs are given institute's electrical appliance, during as cell-phone charging, collapsible attaching plug 20 is inserted into energized in the supply socket, and the USB charger is connected with electrical equipment by the USB connecting line, press control switch button 511 then, energized, AC and DC change-over circuit 52 is converted to direct current with alternating current, is the electrical equipment charging, and this moment, relay 55 was in "on" position.When the electrical equipment charging finishes or does not need to charge, take off electrical equipment from the USB charger, current sensor 53 detects output circuit 54 no currents to be passed through, and current sensor 53 feeds back to relay 55 with no signal current, and make relay 5 automatic disconnections, thereby cut off the electricity supply fully.Therefore,, and it need not be pulled up, can make USB charger deenergization, thereby can not produce any idling consumption even collapsible attaching plug 20 still is inserted in the supply socket.
Although by above embodiment the present invention is disclosed, protection scope of the present invention is not limited thereto, and is not departing under the condition of the present invention design, and the distortion that above each member is done, replacement etc. all will fall in the claim scope of the present invention.
Claims (5)
1. USB charger that does not have idling consumption, comprise housing (10), be contained in the collapsible attaching plug (20) on the housing, the USB interface (40) that is contained in the wiring board (30) in the housing and is connected with wiring board (30), it is characterized in that this USB charger is provided with no idling consumption USB charger circuit (50).
2. the USB charger that does not have idling consumption according to claim 1, it is characterized in that, described no idling consumption USB charger circuit (50) comprises control switch (51), hand over, DC converting circuit (52), current sensor (53), output circuit (54) and relay (55), wherein, control switch (51) is connected in friendship, the input of DC converting circuit (52), current sensor (53) one end and friendships, the output of DC converting circuit (52) connects, the other end is connected with the input of output circuit (54), and relay (55) is connected with control switch (51) and current sensor (53) respectively.
3. as the USB charger of no idling consumption as described in the claim 2, it is characterized in that described control switch (51) is the contact switch.
4. as the USB charger of no idling consumption as described in the claim 2, it is characterized in that described current sensor (53) is current transformer or detects resistance.
5. as the USB charger of no idling consumption as described in the claim 2, it is characterized in that described relay (55) is an electromagnetic relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101349073A CN102185357A (en) | 2011-05-24 | 2011-05-24 | USB (Universal Serial Bus) charger without standby loss |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101349073A CN102185357A (en) | 2011-05-24 | 2011-05-24 | USB (Universal Serial Bus) charger without standby loss |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102185357A true CN102185357A (en) | 2011-09-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101349073A Pending CN102185357A (en) | 2011-05-24 | 2011-05-24 | USB (Universal Serial Bus) charger without standby loss |
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| CN (1) | CN102185357A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111525785A (en) * | 2020-05-07 | 2020-08-11 | 冯玉明 | Electronic appliance automatic power-off standby power supply circuit chip control circuit |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3152251U (en) * | 2009-05-13 | 2009-07-23 | 株式会社京ハヤ | Charger structure |
| JP2010016984A (en) * | 2008-07-03 | 2010-01-21 | Sanyo Electric Co Ltd | Charging controller and charging equipment |
| US20100225273A1 (en) * | 2009-03-05 | 2010-09-09 | Eastlack Jeffrey R | Electromechanical Vampire Proof Battery Charger |
| CN201674249U (en) * | 2010-05-17 | 2010-12-15 | 王广富 | Energy-saving charging device |
| CN201797352U (en) * | 2010-09-17 | 2011-04-13 | 华联电电子(深圳)有限公司 | Energy-saving travelling charger |
| CN202076818U (en) * | 2011-05-24 | 2011-12-14 | 李俊生 | Standby-loss-free universal serial bus (USB) charger |
-
2011
- 2011-05-24 CN CN2011101349073A patent/CN102185357A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010016984A (en) * | 2008-07-03 | 2010-01-21 | Sanyo Electric Co Ltd | Charging controller and charging equipment |
| US20100225273A1 (en) * | 2009-03-05 | 2010-09-09 | Eastlack Jeffrey R | Electromechanical Vampire Proof Battery Charger |
| JP3152251U (en) * | 2009-05-13 | 2009-07-23 | 株式会社京ハヤ | Charger structure |
| CN201674249U (en) * | 2010-05-17 | 2010-12-15 | 王广富 | Energy-saving charging device |
| CN201797352U (en) * | 2010-09-17 | 2011-04-13 | 华联电电子(深圳)有限公司 | Energy-saving travelling charger |
| CN202076818U (en) * | 2011-05-24 | 2011-12-14 | 李俊生 | Standby-loss-free universal serial bus (USB) charger |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111525785A (en) * | 2020-05-07 | 2020-08-11 | 冯玉明 | Electronic appliance automatic power-off standby power supply circuit chip control circuit |
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Application publication date: 20110914 |