CN206369765U - A kind of pure electric automobile multichannel precision electric resistance measuring apparatus - Google Patents

A kind of pure electric automobile multichannel precision electric resistance measuring apparatus Download PDF

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Publication number
CN206369765U
CN206369765U CN201621295554.XU CN201621295554U CN206369765U CN 206369765 U CN206369765 U CN 206369765U CN 201621295554 U CN201621295554 U CN 201621295554U CN 206369765 U CN206369765 U CN 206369765U
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CN
China
Prior art keywords
resistance
direct current
milliohm
measuring apparatus
measurement
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Active
Application number
CN201621295554.XU
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Chinese (zh)
Inventor
单丰武
黄飞
周培俊
邹峰
宋涛
梅朝君
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.)
Jiangxi Jiangling Group New Energy Automobile Co Ltd
Original Assignee
Jiangxi Jiangling Group New Energy Automobile Co Ltd
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Priority to CN201621295554.XU priority Critical patent/CN206369765U/en
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Abstract

The utility model provides a kind of pure electric automobile multichannel precision electric resistance measuring apparatus, is related to electric vehicle testing device field, including:At least 2 groups direct current milliohm measurement modules and power module;At least 2 groups described direct current milliohm measurement modules are connected in series, and are connected with described power module in closed loop;The range of direct current milliohm measurement module described in any group is 2000m Ω, and highest resolution is 1m Ω.Pure electric automobile multichannel precision electric resistance measuring apparatus applicability of the present utility model is wide, can measure the resistance of a variety of parts;Measurement efficiency is high, and multigroup resistance can be measured simultaneously;All earth points of overall wire sheaves can be detected.

Description

A kind of pure electric automobile multichannel precision electric resistance measuring apparatus
【Technical field】
The utility model is related to electric vehicle testing device field, especially a kind of pure electric automobile multichannel precision resistance Measurement apparatus.
【Background technology】
Current electric automobile industry for the parts such as the electricity of vehicle three, electrical equipment resistance verification test is single, complexity, but with Such a pattern of development of industry can not effectively lift operating efficiency.
【Utility model content】
The utility model provides a kind of pure electric automobile multichannel precision electric resistance measuring apparatus, to solve above-mentioned ask Topic.
A kind of pure electric automobile multichannel precision electric resistance measuring apparatus of the present utility model, including:At least 2 groups direct current milliohms Measurement module and power module;At least 2 groups described direct current milliohm measurement modules are connected in series, and with described power module Connected in closed loop;The range of direct current milliohm measurement module described in any group is 2000m Ω, and highest resolution is 1m Ω.
Preferably, using direct current milliohm measurement module described in 10 groups.
Wherein, direct current milliohm measurement module external connection current sampling resistor, motor coil resistance, transformation described in any group Device coil resistance, metal-oxide-semiconductor, conducting resistance, switch contact contact resistance, or USB data transmission line resistance.
Pure electric automobile multichannel precision electric resistance measuring apparatus applicability of the present utility model is wide, can measure a variety of parts Resistance;Measurement efficiency is high, and multigroup resistance can be measured simultaneously;All earth points of overall wire sheaves can be detected.
【Brief description of the drawings】
Fig. 1 is the apparatus structure schematic diagram of the utility model embodiment.
【Embodiment】
Pure electric automobile multichannel precision electric resistance measuring apparatus of the present utility model, it is therefore intended that be capable of pair of efficiently and accurately The parts such as the electricity of whole pure electric vehicle three, electrical equipment carry out Function detection and accident analysis, are mainly used in while measuring multiple micro- Small resistor.
It is shown in Figure 1, the pure electric automobile multichannel precision electric resistance measuring apparatus of the present embodiment, including:At least 2 groups straight Flow in milliohm measurement module 11 and power module 12, the present embodiment by taking 10 groups of direct current milliohm measurement modules 11 as an example.10 groups of direct currents Milliohm measurement module 11 is used and is connected in series, and is connected with power module 12 in closed loop, any group of direct current milliohm measurement module 11 are preferred to use range for 2000m Ω, and highest resolution is 1m Ω.During to external pelivimetry precision resistance, each group of direct current milliohm is surveyed Amount module 11 external connection but can be not limited to current sampling resistor, motor coil resistance, transformer coil resistance, metal-oxide-semiconductor, conducting Resistance, switch contact contact resistance, or USB data transmission line resistance.The current sample electricity within 10 groups can be measured simultaneously Resistance, motor coil resistance, transformer coil resistance, metal-oxide-semiconductor, conducting resistance, switch contact contact resistance, USB data transmission line Resistance etc..
In a particular application, place measurement can all to overall wire sheaves be taken.Daily monitoring:Each direct current milliohm is measured into mould One Kelvin's test clip of block connects one end of each wire harness earth point, another Kelvin's test clip connection vehicle vehicle body, Measurement vehicle takes ground connection status;Product development stage:Overall wire sheaves are taken with place and carries out whole vehicle electrical part electric equilibrium measurement Analysis.Motor, electronic control module measurement:To transformer coil resistance, metal-oxide-semiconductor, electric conduction in motor coil resistance, electric machine controller Resistance, switch contact contact resistance monitoring motor, the checking of motor control module design parameter and the examination of supplied materials, failure cause Analysis.CAN wire harness resistance measurements, detection signal data transmission is with the presence or absence of loss.The measurement analysis monitoring of high tension apparatus:To car Carry the accurate measurement analysis of the pcb board circuit of electricity consumption device such as charger, pure electric air-conditioning control panel, VCU, DC-DC.
Here description and application of the present utility model are all simply illustrative and exemplary, are not intended to this practicality is new The scope limitation of type is in the above-described embodiments.The deformation and change of embodiments disclosed herein are entirely possible, for that For a little one of ordinary skill in the art, the replacement of embodiment and equivalent various parts are known.Art technology Personnel should also be clear that in the case where not departing from spirit or essential characteristics of the present utility model, and the utility model can be with In other forms, structure, arrangement, ratio, and realized with other components, material and part, and do not departing from this practicality In the case of new scope and spirit, other deformations and change can be carried out to embodiments disclosed herein.

Claims (3)

1. a kind of pure electric automobile multichannel precision electric resistance measuring apparatus, it is characterised in that including:At least 2 groups direct current milliohms are surveyed Measure module and power module;
At least 2 groups described direct current milliohm measurement modules are connected in series, and are connected with described power module in closed loop;It is any The range of the group direct current milliohm measurement module is 2000m Ω, and highest resolution is 1m Ω.
2. pure electric automobile multichannel precision electric resistance measuring apparatus as claimed in claim 1, it is characterised in that using 10 groups of institutes State direct current milliohm measurement module.
3. pure electric automobile multichannel precision electric resistance measuring apparatus as claimed in claim 1, it is characterised in that described in any group Direct current milliohm measurement module external connection current sampling resistor, motor coil resistance, transformer coil resistance, metal-oxide-semiconductor, electric conduction Resistance, switch contact contact resistance, or USB data transmission line resistance.
CN201621295554.XU 2016-11-29 2016-11-29 A kind of pure electric automobile multichannel precision electric resistance measuring apparatus Active CN206369765U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201621295554.XU CN206369765U (en) 2016-11-29 2016-11-29 A kind of pure electric automobile multichannel precision electric resistance measuring apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201621295554.XU CN206369765U (en) 2016-11-29 2016-11-29 A kind of pure electric automobile multichannel precision electric resistance measuring apparatus

Publications (1)

Publication Number Publication Date
CN206369765U true CN206369765U (en) 2017-08-01

Family

ID=59389657

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201621295554.XU Active CN206369765U (en) 2016-11-29 2016-11-29 A kind of pure electric automobile multichannel precision electric resistance measuring apparatus

Country Status (1)

Country Link
CN (1) CN206369765U (en)

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