CN204615452U - A kind of charger of onboard data line - Google Patents

A kind of charger of onboard data line Download PDF

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Publication number
CN204615452U
CN204615452U CN201520290906.1U CN201520290906U CN204615452U CN 204615452 U CN204615452 U CN 204615452U CN 201520290906 U CN201520290906 U CN 201520290906U CN 204615452 U CN204615452 U CN 204615452U
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China
Prior art keywords
module
charger
transformer
control chip
voltage output
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CN201520290906.1U
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Chinese (zh)
Inventor
王进
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New Time Electronic Component (hangzhou) Co Ltd
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New Time Electronic Component (hangzhou) Co Ltd
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Abstract

The utility model discloses a kind of charger of onboard data line, comprise housing, be arranged on the socket of housing side, and the circuit board be arranged in housing and the Wiinding cartridge for being wound around data wire, described circuit board is provided with rectification filtering module, step-down control module and voltage output module, wherein, the input of described rectification filtering module is connected with socket, the output of voltage output module is connected with data wire, described step-down control module comprises transformer and control chip, the primary side of described transformer is connected with the voltage output end of rectification filtering module, secondary side is connected with voltage output module, the output voltage that transformer is biased winding side is that control chip is powered, 220V alternating current enters in charger by socket, then after rectification filtering module rectifying and wave-filtering, be converted into the direct current higher than 220V, direct current is respectively voltage output module after the transformer pressure-reducing of step-down control module and control chip provides suitable voltage.

Description

A kind of charger of onboard data line
Technical field
The utility model relates to a kind of charger of onboard data line, belongs to charger technologies field.
Background technology
21 century, power electronic technology fast development, mobile phone and the dull and stereotyped part become in life, this just means and becomes more and more important to its charging convenience.Current charger is generally made up of charging head and data wire two parts, and when not using, data wire can compare and takes up space, and unsightly, carries also inconvenient; If by data wire coiling on charging head, of long duration, charging head and data wire junction cracking will be made, affect its useful life.
In view of this, the present inventor studies this, and develop a kind of charger of onboard data line specially, this case produces thus.
Utility model content
The purpose of this utility model is to provide a kind of charger of onboard data line, has the features such as easy to carry, long service life.
To achieve these goals, solution of the present utility model is:
A kind of charger of onboard data line, comprise housing, be arranged on the socket of housing side, and the circuit board be arranged in housing and the Wiinding cartridge for being wound around data wire, described circuit board is provided with rectification filtering module, step-down control module and voltage output module, wherein, the input of described rectification filtering module is connected with socket, the output of voltage output module is connected with data wire, described step-down control module comprises transformer and control chip, the primary side of described transformer is connected with the voltage output end of rectification filtering module, secondary side is connected with voltage output module, the output voltage that transformer is biased winding side is that control chip is powered, 220V alternating current enters in charger by socket, then after rectification filtering module rectifying and wave-filtering, be converted into the direct current higher than 220V, direct current is respectively voltage output module after the transformer pressure-reducing of step-down control module and control chip provides suitable voltage.
As preferably, described control chip adopts switching power source chip, its VCC end is biased winding side by diode and resistance and transformer and is connected, GATE end is connected with transformer primary side by metal-oxide-semiconductor, be connected to multiple current-limiting resistance after SEVSE holds serial connection resistance, RI end is serially connected with a resistance, and FB holds and is connected to optocoupler and electric capacity.
As preferably, described control chip adopts model to be the control chip of AP3103.
As preferably, described housing sidewall is provided with data string holes, and data string holes is connected with Wiinding cartridge, by data string holes by the data wire pull-out in Wiinding cartridge.
As preferably, be provided with a storage box further in described housing, for depositing the connector of different size, user can select the connector of different model to be charging equipment charging.
When the charger of above-mentioned onboard data line uses, first by data string holes, data wire is pulled out, then suitable connector is selected, be connected with charging equipment, then charging is started by socket, 220V alternating current is converted into the direct current higher than 220V after the rectification filtering module rectifying and wave-filtering on circuit board, direct current is respectively voltage output module after the transformer pressure-reducing of step-down control module and control chip provides suitable voltage, when voltage output module exports higher than set point, control chip conducting, optocoupler conducting, control chip exports high level, metal-oxide-semiconductor conducting, otherwise when voltage output module is lower than set point, control chip is closed, and optocoupler ends, control chip output low level, and metal-oxide-semiconductor ends, during metal-oxide-semiconductor conducting, transformer energy storage, not as Energy transmission, secondary end exports energy and is provided by secondary filter capacitor.During metal-oxide-semiconductor cut-off, transformer is released energy by secondary, simultaneously to filter capacitor charging and load supplying.The balance of output voltage is controlled by the conducting of metal-oxide-semiconductor and cut-off.
The charger of onboard data line described in the utility model, is built in charger shell by data wire and connector, and when not using, data wire and connector can not be exposed outside housing, both save space, also attractive in appearance, and carry more convenient, long service life; In addition, whole circuit structure is succinct, and production cost is low, and reliability is high.
Below in conjunction with drawings and the specific embodiments, the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is the charger shell inner plane structural representation of the present embodiment;
Fig. 2 is the inner perspective view of charger shell of the present embodiment;
Fig. 3 is the charger circuit schematic diagram of the present embodiment.
Embodiment
As shown in Figure 1-2, a kind of charger of onboard data line, comprise housing 1, be arranged on the socket 11 of housing 1 side, and the circuit board 12 be arranged in housing 1 and the Wiinding cartridge 13 for being wound around data wire, described housing 1 sidewall is provided with data string holes 14, and data string holes 14 is connected with Wiinding cartridge 13, can by the data wire pull-out in Wiinding cartridge 13 by data string holes 14.Described Wiinding cartridge 13 is circular, and centre is provided with an axle 15, and axle 15 can select common fixed axis, or has the elastic shaft of function of pulling back, and when data wire does not use, data wire can retract according to the elastic potential energy of elastic shaft by data wire.Be provided with a storage box 16 in described housing 1 further, for depositing the connector of different size, user can select the connector of different model to be charging equipment charging.
As shown in Figure 3, described circuit board 12 is provided with rectification filtering module 2, step-down control module 3 and 5V voltage output module 4.Wherein, the input of described rectification filtering module 2 is connected with socket 11, the output of voltage output module 3 is connected with data wire, described step-down control module 3 comprises transformer T1 and control chip U1, the primary side of described transformer T1 is connected with the voltage output end of rectification filtering module 2, and secondary side is connected with the voltage input end of 5V voltage output module 4.Described control chip U1 adopts switching power source chip, in the present embodiment, described control chip U1 adopts model to be the control chip of AP3103, its VCC end (5 pin) is biased winding side by diode D6, D7 with resistance R7 and transformer T1 and is connected, GATE end (6 pin) is connected with transformer T1 primary side by metal-oxide-semiconductor Q1, be provided with further and the resistance R3 connect and diode D8 between GATE end (6 pin) and metal-oxide-semiconductor Q1, realize the control to metal-oxide-semiconductor Q1 by resistance R3 and diode D8; SEVSE end (4 pin) be connected in series a resistance R5 after and be connected to 3 current-limiting resistances R20, R21, R22, be used for detecting metal-oxide-semiconductor Q1 grid current by above-mentioned resistance, RI end (3 pin) is serially connected with a resistance R9, for determining the operating frequency of control chip, FB end (2 pin) is also connected to optocoupler and electric capacity C3.
In the present embodiment, described rectification filtering module 2 comprises the EMI Filtering unit that electric capacity CX1 and LF1 forms, and the current rectifying and wave filtering circuit that rectifier bridge BD1 and filter capacitor CE2 forms, its effect suppresses the interference of input power and carries out rectifying and wave-filtering to the alternating current of input.
When the charger of above-mentioned onboard data line uses, first by data string holes 14, data wire is pulled out, then suitable connector is selected, be connected with charging equipment, then charging is started by socket 11, 220V alternating current is converted into the direct current of about 400V after rectification filtering module 2 rectifying and wave-filtering, direct current is respectively 5V voltage output module 4 after the transformer T1 step-down of step-down control module and control chip U1 provides suitable voltage, when 5V voltage output module 4 is higher than 5V, control chip U1 conducting, optocoupler conducting, 2 pin of control chip U1 drag down, 6 pin export high level, metal-oxide-semiconductor Q1 conducting, otherwise when 5V voltage output module 4 is lower than 5V, control chip U1 closes, optocoupler ends, and the 2 pin voltages of control chip U1 raise, 6 pin output low levels, and metal-oxide-semiconductor Q1 ends, during metal-oxide-semiconductor Q1 conducting, transformer T1 energy storage, not as Energy transmission, secondary end exports energy and is provided by secondary filter capacitor, when metal-oxide-semiconductor Q1 ends, transformer T1 is released energy by secondary, simultaneously to filter capacitor charging and load supplying.The balance of output voltage is controlled by the conducting of metal-oxide-semiconductor Q1 and cut-off.
Above-described embodiment and graphic and non-limiting product form of the present utility model and style, any person of an ordinary skill in the technical field, to its suitable change done or modification, all should be considered as not departing from patent category of the present utility model.

Claims (5)

1. the charger of an onboard data line, it is characterized in that: comprise housing, be arranged on the socket of housing side, and the circuit board be arranged in housing and the Wiinding cartridge for being wound around data wire, described circuit board is provided with rectification filtering module, step-down control module and voltage output module, wherein, the input of described rectification filtering module is connected with socket, the output of voltage output module is connected with data wire, described step-down control module comprises transformer and control chip, the primary side of described transformer is connected with the voltage output end of rectification filtering module, secondary side is connected with voltage output module, the output voltage that transformer is biased winding side is that control chip is powered, 220V alternating current enters in charger by socket, then after rectification filtering module rectifying and wave-filtering, direct current is converted into, direct current is respectively voltage output module after the transformer pressure-reducing of step-down control module and control chip provides suitable voltage.
2. the charger of a kind of onboard data line as claimed in claim 1, it is characterized in that: described control chip adopts switching power source chip, its VCC end is biased winding side by diode and resistance and transformer and is connected, GATE end is connected with transformer primary side by metal-oxide-semiconductor, be connected to multiple current-limiting resistance after SEVSE holds serial connection resistance, RI end is serially connected with a resistance, and FB holds and is connected to optocoupler and electric capacity.
3. the charger of a kind of onboard data line as claimed in claim 1, is characterized in that: described control chip adopts model to be the control chip of AP3103.
4. the charger of a kind of onboard data line as claimed in claim 1, it is characterized in that: described housing sidewall is provided with data string holes, data string holes is connected with Wiinding cartridge, by data string holes by the data wire pull-out in Wiinding cartridge.
5. the charger of a kind of onboard data line as claimed in claim 1, is characterized in that: be provided with one in described housing further for depositing the storage box of the connector of different size.
CN201520290906.1U 2015-05-07 2015-05-07 A kind of charger of onboard data line Active CN204615452U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520290906.1U CN204615452U (en) 2015-05-07 2015-05-07 A kind of charger of onboard data line

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520290906.1U CN204615452U (en) 2015-05-07 2015-05-07 A kind of charger of onboard data line

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105305850A (en) * 2015-11-13 2016-02-03 苏州扬佛自动化设备有限公司 Voltage reduction control circuit of switching power supply
CN105305851A (en) * 2015-11-13 2016-02-03 苏州扬佛自动化设备有限公司 Voltage reduction control method of switching power supply
CN105337351A (en) * 2015-10-30 2016-02-17 苏州扬佛自动化设备有限公司 Charger control circuit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105337351A (en) * 2015-10-30 2016-02-17 苏州扬佛自动化设备有限公司 Charger control circuit
CN105305850A (en) * 2015-11-13 2016-02-03 苏州扬佛自动化设备有限公司 Voltage reduction control circuit of switching power supply
CN105305851A (en) * 2015-11-13 2016-02-03 苏州扬佛自动化设备有限公司 Voltage reduction control method of switching power supply

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