CN105807119A - 电流检测装置 - Google Patents

电流检测装置 Download PDF

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Publication number
CN105807119A
CN105807119A CN201410848035.0A CN201410848035A CN105807119A CN 105807119 A CN105807119 A CN 105807119A CN 201410848035 A CN201410848035 A CN 201410848035A CN 105807119 A CN105807119 A CN 105807119A
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CN
China
Prior art keywords
emitting diode
light emitting
current
sensing means
detecting chip
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN201410848035.0A
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English (en)
Inventor
叶心
陈俊生
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hongfujin Precision Industry Wuhan Co Ltd
Hon Hai Precision Industry Co Ltd
Original Assignee
Hongfujin Precision Industry Wuhan Co Ltd
Hon Hai Precision Industry Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Hongfujin Precision Industry Wuhan Co Ltd, Hon Hai Precision Industry Co Ltd filed Critical Hongfujin Precision Industry Wuhan Co Ltd
Priority to CN201410848035.0A priority Critical patent/CN105807119A/zh
Priority to TW104101011A priority patent/TW201625966A/zh
Priority to US14/699,726 priority patent/US20160187391A1/en
Publication of CN105807119A publication Critical patent/CN105807119A/zh
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66—Structural association with built-in electrical component
    • H01R13/717—Structural association with built-in electrical component with built-in light source
    • H01R13/7175—Light emitting diodes (LEDs)
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
    • G01R19/16566—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533
    • G01R19/1659—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533 to indicate that the value is within or outside a predetermined range of values (window)
    • G01R19/16595—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533 to indicate that the value is within or outside a predetermined range of values (window) with multi level indication
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66—Structural association with built-in electrical component
    • H01R13/665—Structural association with built-in electrical component with built-in electronic circuit
    • H01R13/6683—Structural association with built-in electrical component with built-in electronic circuit with built-in sensor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2107/00—Four or more poles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/60—Contacts spaced along planar side wall transverse to longitudinal axis of engagement
    • H01R24/62—Sliding engagements with one side only, e.g. modular jack coupling devices

Abstract

一种电流检测装置，用于对一待测USB接口的电流进行测试。所述电流检测装置包括一USB插头、一壳体、一设置于所述壳体内的电流检测电路及一透光装置。对所述待测USB接口的充电能力进行检测时，所述USB插头插入所述待测USB接口内，所述待测USB接口的电源信号经所述电流检测芯片转换后输出给所述发光二极管使得所述发光二极管发光，如此即可通过所述发光二极管的亮度简单直观的判断所述待测USB接口的充电能力。

Description

电流检测装置
技术领域
本发明涉及一种电流检测装置。
背景技术
USB（UniversalSerialBus，通用串行总线）接口通常通过一个四线电缆来传输信号与电源：D+信号线、D-信号线、GND信号线和Vbus信号线。其中Vbus（高电平）信号线和GND信号线则提供了电源，它可以给一些设备供电。但由于不同USB接口的电流各不相同，其供电能力也不相同。
发明内容
鉴于以上内容，有必要提供一种电流检测装置，以检测待测USB接口的供电能力。
一种电流检测装置，包括：
一USB插头，所述USB插头的接地引脚接地；
一壳体；以及
一电流检测电路，包括：
一电流检测芯片，所述电流检测芯片的输入引脚连接所述USB插头的电源引脚，所述电流检测芯片的接地引脚接地，所述电流检测芯片用于接收一电源信号并将所接收的电源信号对应转换为一小电流的电源信号并输出；
一电阻；以及
一发光二极管，所述发光二极管的阳极通过所述电阻连接所述电流检测芯片的输出引脚，所述发光二极管的阴极接地，所述发光二极管的亮度根据流过所述发光二极管的电流决定。
上述电流检测装置用于将USB插头插入所述待测USB接口，所述待测USB接口的电源信号经所述电流检测芯片转换后输出给所述发光二极管使得所述发光二极管发光，如此即可通过所述发光二极管的亮度判断所述待测USB接口的充电能力。
附图说明
图1是本发明电流检测装置的较佳实施方式的示意图。
图2是图1中USB插头及电流检测电路的较佳实施方式的电路图。
主要元件符号说明
如下具体实施方式将结合上述附图进一步说明本发明。
具体实施方式
下面结合附图及较佳实施方式对本发明作进一步详细描述：
请参考图1及图2，本发明电流检测装置100用于对一待测USB接口的电流进行测试。所述电流检测装置100包括一USB插头10、一壳体50、一设置于所述壳体50内的电流检测电路20及一透光装置30。
所述透光装置30包括若干穿透所述壳体50的透光孔35及一遮光板32。本实施方式中，所述透光孔35的数量为三个，所述三个透光孔35从左到右依次设置于所述壳体上。所述遮光板32设置于所述壳体50内以遮挡所述透光孔35。
所述电流检测电路20包括一电流检测芯片U、一电阻R及一发光二极管D。所述电流检测芯片U的输入引脚Vin连接所述USB插头10的电源引脚Vbus，所述USB插头10的接地引脚GND接地。所述电流检测芯片U的输出引脚Vout通过所述电阻R连接所述发光二极管D的阳极，所述发光二极管D的阴极接地。所述电流检测芯片U的接地引脚GND接地。
对所述待测USB接口的充电能力进行检测时，所述USB插头10插入所述待测USB接口内，所述电流检测芯片U的输入引脚Vin接收来自所述待测USB接口的电源信号，并将所接收的电源信号通过电磁感应原理转换为一小电流的电源信号经所述电流检测芯片U的输出引脚Vout输出。所述发光二极管D通过电阻R接收来自所述电流检测芯片U的输出引脚Vout输出的电源信号并发光。所述发光二极管D的亮度根据流过其的电流大小决定。所述发光二极管D的亮度越大，所述遮光板32的穿透能力越强，所述透光孔32透出的光越强，从而可视化的表示所述待测USB接口的充电能力。
本实施方式中，所述发光二极管D设置于所述三个透光孔35的左侧。当只有靠近所述发光二极管D的一个透光孔35有光透出，表示流过所述待测USB接口的电流较小，所述待测USB接口的充电能力较弱。当靠近所述发光二极管D的两个透光孔35均有光透出，表示流过所述待测USB接口的电流适中，所述待测USB接口的充电能力适中。当三个透光孔35均有光透出，表示流过所述待测USB接口的电流较大，所述待测USB接口的充电能力较强。
本发明电流检测装置用于将USB插头插入所述待测USB接口，所述待测USB接口的电源信号经所述电流检测芯片转换后输出给所述发光二极管使得所述发光二极管发光，如此即可通过所述发光二极管的亮度简单直观的判断所述待测USB接口的充电能力。

Claims (5)

1.一种电流检测装置，包括：
一USB插头，所述USB插头的接地引脚接地；
一壳体；以及
一电流检测电路，包括：
一电流检测芯片，所述电流检测芯片的输入引脚连接所述USB插头的电源引脚，所述电流检测芯片的接地引脚接地，所述电流检测芯片用于接收一电源信号并将所接收的电源信号对应转换为一小电流的电源信号并输出；
一电阻；以及
一发光二极管，所述发光二极管的阳极通过所述电阻连接所述电流检测芯片的输出引脚，所述发光二极管的阴极接地，所述发光二极管的亮度根据流过所述发光二极管的电流决定。
2.如权利要求1所述的电流检测装置，其特征在于：所述电流检测装置还包括一透光装置，所述透光装置包括若干穿透所述壳体的透光孔及一遮光板，所述遮光板设置于所述壳体内以遮挡所述透光孔。
3.如权利要求2所述的电流检测装置，其特征在于：所述透光孔的数量为三个，所述三个透光孔从左到右依次设置于所述壳体上。
4.如权利要求2所述的电流检测装置，其特征在于：所述发光二极管靠近所述透光孔，所述发光二极管的亮度越大，所述遮光板的穿透力越强，所述透光孔透出的光越亮，所述电流检测芯片所接收的电源信号的电流越大。
5.如权利要求3所述的电流检测装置，其特征在于：所述发光二极管设置于所述透光孔的左侧或右侧，所述发光二极管的亮度越大，所述遮光板的穿透力越强，有光透出的透光孔的数量越多。
CN201410848035.0A 2014-12-31 2014-12-31 电流检测装置 Withdrawn CN105807119A (zh)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201410848035.0A CN105807119A (zh) 2014-12-31 2014-12-31 电流检测装置
TW104101011A TW201625966A (zh) 2014-12-31 2015-01-12 電流檢測裝置
US14/699,726 US20160187391A1 (en) 2014-12-31 2015-04-29 Electrical current magnitude indicator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410848035.0A CN105807119A (zh) 2014-12-31 2014-12-31 电流检测装置

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US9521868B2 (en) 2014-11-19 2016-12-20 Nike, Inc. Athletic band with removable module
WO2018191470A1 (en) 2017-04-12 2018-10-18 Nike Innovate C.V. Wearable article with removable module
US11666105B2 (en) * 2017-04-12 2023-06-06 Nike, Inc. Wearable article with removable module
CN112763784B (zh) * 2020-12-20 2022-05-20 复旦大学 一种电流探测装置及方法

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CN101776707A (zh) * 2009-01-13 2010-07-14 鸿富锦精密工业（深圳）有限公司 电流检测装置
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Publication number Priority date Publication date Assignee Title
CN101776707A (zh) * 2009-01-13 2010-07-14 鸿富锦精密工业（深圳）有限公司 电流检测装置
CN203562805U (zh) * 2013-10-31 2014-04-23 陈悦 一种智能usb充电插头电路
TWM479393U (zh) * 2014-01-28 2014-06-01 Shen Tung Technology Co Ltd Ｌｅｄ嵌燈之光學燈罩
CN103840524A (zh) * 2014-03-12 2014-06-04 深圳市百铭电子有限公司 一种发光充电传输线

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US20160187391A1 (en) 2016-06-30

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