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 PDFInfo
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- 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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- resistance
- direct current
- milliohm
- measuring apparatus
- measurement
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- 238000005259 measurement Methods 0.000 claims abstract description 26
- 230000005540 biological transmission Effects 0.000 claims description 5
- 239000004065 semiconductor Substances 0.000 claims description 5
- 238000005070 sampling Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 description 4
- 238000001514 detection method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000001131 transforming Effects 0.000 description 1
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
【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.
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) |
-
2016
- 2016-11-29 CN CN201621295554.XU patent/CN206369765U/en active Active
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