Portable off-line testing device for junction box

An offline detection and junction box technology, applied in the field of electric vehicles, can solve the problems of bulky, incapable of handling, and difficult to meet the maintenance site, etc., and achieve the effects of small size, low cost and simple structure

Inactive Publication Date: 2012-08-01
CHERY AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing junction box off-line detection device is bulky and cannot be transported, and needs AC220V civilian power supply, which is difficult to meet the requirements of the maintenance site

Method used

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  • Portable off-line testing device for junction box
  • Portable off-line testing device for junction box
  • Portable off-line testing device for junction box

Examples

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Embodiment Construction

[0015] Below with reference to the accompanying drawings, through the description of the implementation examples, the specific embodiments of the present invention, such as the shape, structure, mutual position and connection relationship between each part, the role and working principle of each part, etc., will be further described. detailed instructions.

[0016] The portable junction box offline detection device of the present invention includes a power supply module, a function selection module, a display module, a single-chip microcomputer and a drive circuit module, and the function selection module includes at least three functional modules of pre-charging circuit detection, main circuit detection and PTC circuit detection. , the display module at least includes three working status displays corresponding to the selection of the three functional modules, the single-chip microcomputer and the driving circuit module provide the internal relay driving power of the junction ...

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Abstract

The invention provides a portable off-line testing device for a junction box. A simple single-chip microcomputer is used for selecting a loop and providing display; a power module is used for supplying power for the single-chip microcomputer, and supplying power for a relay inside a junction box through a driving module; a function selecting module is used for selecting and closing a precharge loop, a major loop and a positive temperature coefficient (PTC) loop; and then whether the loops are normal or not can be tested and displayed through a display module. The portable off-line testing device for the junction box is simple in structure, low in construction cost, small in size, and convenient to maintain and test the power junction box of an electrocar on site.

Description

technical field [0001] The invention relates to the technical field of electric vehicles, in particular to a portable junction box off-line detection device. Background technique [0002] With the continuous maturity of electric vehicle technology, large-scale promotion and use have become inevitable, but electric vehicles are new things after all, and there is still room for improvement in some key components including power junction boxes. The main direction of power junction box technology is to improve the stability of the internal parts of the junction box and improve the assembly quality of the junction box itself. [0003] Due to the imperfections of multiple parts, this brings uncertainty to the production and maintenance of the whole vehicle. When a vehicle breaks down, non-professionals cannot determine which part is out of order, so they can only replace parts blindly, resulting in waste of manpower and material resources. As a vulnerable part, the power junctio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/00
Inventor 韩嵩嵬
Owner CHERY AUTOMOBILE CO LTD
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