CN204967388U - Special chargeable portable power of EMC test - Google Patents

Special chargeable portable power of EMC test Download PDF

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Publication number
CN204967388U
CN204967388U CN201520772527.6U CN201520772527U CN204967388U CN 204967388 U CN204967388 U CN 204967388U CN 201520772527 U CN201520772527 U CN 201520772527U CN 204967388 U CN204967388 U CN 204967388U
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CN
China
Prior art keywords
pcb control
power
control panel
overheated
control board
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Active
Application number
CN201520772527.6U
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Chinese (zh)
Inventor
叶健
丁涛
温仕纬
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SHANGHAI LELAI AUTOMOTIVE ANALYSIS AND TESTING Co Ltd
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SHANGHAI LELAI AUTOMOTIVE ANALYSIS AND TESTING Co Ltd
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Priority to CN201520772527.6U priority Critical patent/CN204967388U/en
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Abstract

The utility model discloses a special chargeable portable power of EMC test, including metal casing, be equipped with PCB control panel, lithium cell group and speaker in the metal casing, be equipped with power input connector, IO interface, output current voltage testing, measuring button, digital display, LED instruction banks and speech signal output module on the PCB control panel, lithium cell group be equipped with fill, the protective film piece of excessive pressure, overheated, short circuit, the power input connector of lithium cell group link PCB control panel, the IO interface connection external power equipment and the outside battery charging outfit of PCB control panel, output current voltage testing connected fill, the protective film piece of excessive pressure, overheated, short circuit, speech signal output module connects the speaker. Compared with the prior art, the utility model the advantage be: reduce EMC test flow, avoided the tester to use the power of brownout, reduced the radiated interference and the noise of power itself simultaneously to the accuracy of work efficiency and test result has been improved.

Description

A kind of EMC tests special chargeable portable power supplies
Technical field
The utility model relates to a kind of supply unit, particularly relates to a kind of EMC and tests special chargeable portable power supplies.
Background technology
At present, like product adopts single powering directly to load or instrument from battery pack mostly.Battery voltage needs with instrument test; and unprotected circuit; such technical staff needs to use instrument test cell voltage before not only using at every turn; increase test testing process; and usually omit or forget detection battery voltage; employ brownout battery pack, affect properties of product and EMC test parameter.
Also have some power supplys with voltage tester function, and function of supplying power reminded by indicator light.Although power supply is with measuring ability, but together start (constantly detection display) with output current voltage switch key, and testing circuit and externally fed circuit use same power supply, if load exhausts electric quantity of power supply or supply voltage reduces, measure loop cannot normally work, and detects nearly all measure loop device constantly and all can work, and can send a large amount of radiated interference like this, and noise, EMC test result can be affected equally.
Utility model content
The utility model is to solve above-mentioned deficiency, provides a kind of EMC and tests special chargeable portable power supplies.
Above-mentioned purpose of the present utility model is realized by following technical scheme: a kind of EMC tests special chargeable portable power supplies, it is characterized in that: comprise metal shell, be provided with PCB control board, lithium battery group and loud speaker in metal shell, described PCB control board is provided with power input interface, I/O interface, output current/voltage detection module, test button, digital display screen, LED light group and voice signal output module; Described lithium battery group be provided with overcharge, overvoltage, overheated, short circuit protection module;
The power input interface of described lithium battery group connection PCB control board, the I/O interface of PCB control board connects externally fed equipment and external charging equipment; Described output current/voltage detection module connect overcharge, overvoltage, overheated, short circuit protection module; Described voice signal output module connects loud speaker.
Feature of the present utility model:
1, the utility model adopts full metal jacket, well moulds and is in the such environment of automobile (metal shell).
2, the utility model inner lithium battery group is overcharged, overvoltage, overheated, short-circuit protection, prevent lithium battery from damaging and explosion, extend lithium battery group useful life.
3, the utility model is to voltage digital-scroll technique, makes its voltage very clear.
4, the utility model band voice assistant, power supply, under different electrical power, carries out voice message power supply current state.
5, the utility model moment after exporting end band, unloading power consumption equipment is detected automatically, reduces EMC testing process, well prevents tester, use brownout power supply.
6, the utility model Low emissivity interference, low noise export, and adopt point contact type sense switch, when a button is depressed, enter detecting pattern, unclamp and enter park mode (except single-chip microcomputer is in running order, the equal power down of all testing circuits) immediately.
The utility model advantage is compared with prior art: decrease EMC testing process, well avoid the power supply that tester uses brownout, decrease radiated interference and the noise of power supply itself simultaneously, thus improve the accuracy of operating efficiency and test result.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is fundamental diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1, a kind of EMC tests special chargeable portable power supplies, comprise metal shell 1, be provided with PCB control board 2, lithium battery group 3 and loud speaker 4 in metal shell 1, described PCB control board 2 is provided with power input interface 5, I/O interface 6, output current/voltage detection module 7, test button 8, digital display screen 9, LED light group 10 and voice signal output module 11; Described lithium battery group 3 be provided with overcharge, overvoltage, overheated, short circuit protection module 12;
The I/O interface 6 of power input interface 5, the PCB control board 2 of described lithium battery group 3 connection PCB control board 2 connects externally fed equipment 13 and external charging equipment 14; Described output current/voltage detection module 7 connect overcharge, overvoltage, overheated, short circuit protection module 12; Described voice signal output module 11 connects loud speaker 4.
As shown in Figure 2, operation principle of the present utility model: the protection module of external charging equipment connection lithium battery; When Pen-down detection button, open I/O interface scans, if there is signal, then open the power supply of output voltage detection module, digital display screen display voltage, the power supply of opening voice signal output module, power supply status is exported by voice broadcast, within 5 seconds, automatically closes voice signal output module power supply afterwards; If no signal, within 5 seconds, close voltage digital display screen afterwards, and close the power supply of voltage detection module.
When external electric equipment access or when disconnecting, after output electric current measure module detects electric current, open I/O interface scans, and open the power supply of output voltage detection module, digital display screen display voltage and current, the power supply of opening voice signal output module, power supply status is exported by voice broadcast.
The foregoing is only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model specification and accompanying drawing content to do equivalent structure or equivalent flow process conversion; 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 utility model.

Claims (1)

1. an EMC tests special chargeable portable power supplies, it is characterized in that: comprise metal shell, be provided with PCB control board, lithium battery group and loud speaker in metal shell, described PCB control board is provided with power input interface, I/O interface, output current/voltage detection module, test button, digital display screen, LED light group and voice signal output module; Described lithium battery group be provided with overcharge, overvoltage, overheated, short circuit protection module;
The power input interface of described lithium battery group connection PCB control board, the I/O interface of PCB control board connects externally fed equipment and external charging equipment; Described output current/voltage detection module connect overcharge, overvoltage, overheated, short circuit protection module; Described voice signal output module connects loud speaker.
CN201520772527.6U 2015-09-30 2015-09-30 Special chargeable portable power of EMC test Active CN204967388U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520772527.6U CN204967388U (en) 2015-09-30 2015-09-30 Special chargeable portable power of EMC test

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520772527.6U CN204967388U (en) 2015-09-30 2015-09-30 Special chargeable portable power of EMC test

Publications (1)

Publication Number Publication Date
CN204967388U true CN204967388U (en) 2016-01-13

Family

ID=55062429

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520772527.6U Active CN204967388U (en) 2015-09-30 2015-09-30 Special chargeable portable power of EMC test

Country Status (1)

Country Link
CN (1) CN204967388U (en)

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