CN205484676U - Insulation testing device for electric automobile - Google Patents
Insulation testing device for electric automobile Download PDFInfo
- Publication number
- CN205484676U CN205484676U CN201620265422.6U CN201620265422U CN205484676U CN 205484676 U CN205484676 U CN 205484676U CN 201620265422 U CN201620265422 U CN 201620265422U CN 205484676 U CN205484676 U CN 205484676U
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- module
- microprocessor
- resistance
- insulation
- detection module
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Abstract
The utility model discloses an insulation testing device for electric automobile, which comprises a microprocessor, ADC conversion module, voltage testing, the resistance detection module, insulating detection module, the early warning module, the protection modul, the electric energy control module, microprocessor links to each other with ADC conversion module, ADC conversion module respectively with voltage testing, the resistance detection module links to each other, ADC conversion module can be with inputing microprocessor behind voltage and the resistance switching, handle the signal by microprocessor, microprocessor links to each other with the early warning module, the protective film piece links to each other with the early warning module, insulating detection module respectively with microprocessor, the protective film piece links to each other. The utility model discloses can the high performance bus type intelligence leakage current sensor measure insulation leakagel volume leakage stream, rapid to the resistance measurement who produces, and numerical value is accurate, online real time kinematic monitoring system along the resistance value, small, effective guardian's body safety when producing the electric leakage between high -pressure system and the insulating layer can be protected in the installation of being convenient for.
Description
Technical field
This utility model belongs to electric vehicle engineering field, particularly relates to a kind of insulation testing device for electric automobile.
Background technology
Electric automobile is a complicated electromechanical integrated product, and electrical system is the important component part of electric automobile.According to the difference of purposes, its electrical system is generally divided into low voltage electrical system and high-tension system.Low voltage electrical system is vehicle central controller, electronic equipment, light and rain brush etc. provide electric energy, general uses direct current 12V or 24V power supply, and the design of automobile-used low-pressure system and construction have relevant codes and standards, and technology maturation, reliability are high.
The high power components such as the driving motor that high-tension system is vehicle provide electric energy, are mainly made up of electrical equipments such as power battery pack, supply convertor, motor controller and motor.The running voltage of high-voltage system power battery pack is general all at more than 300V, uses higher voltage specification, it is possible to reduce the operating current of electrical equipment, reduce the weight of electrical equipment and car load.But the insulating properties between high-voltage electric system and vehicle chassis are had higher requirement by higher running voltage.The most directly being electrically connected between high-tension system and the chassis of electric automobile, be i.e. insulation between high voltage electric equipment and chassis, this is a kind of isolated neutral system.The cable insulation media ages of direct-current high-voltage system or affected the decreasing insulating that all can cause between high-voltage electric system and vehicle chassis by factors such as wet environments; positive source or negative wire will be by constituting loop of electric leakage between insulating barrier and chassis; vehicle chassis current potential is made to increase; affect the normal work of low-voltage electrical and electric machine controller, crisis driver and crew's
Personal safety.
When there is occurring multiple spot decreasing insulating between vehicle high-voltage circuit and chassis, heat accumulation effect can be produced, can cause time serious electrically
Fire.
Summary of the invention
For solving the problems referred to above; the utility model discloses a kind of insulation testing device for electric automobile; can high performance bus formula Intelligent leakage-current sensor measurement insulation leakagel volume leakage stream; resistance measurement to producing is rapid; and numerical value is accurate, the edge resistance value of online real-time dynamic monitoring system, volume is little; it is easily installed, it is possible to protection effectively protects personal safety when producing electric leakage between high-pressure system and insulating barrier.
In order to reach object above, this utility model following technical scheme of offer: a kind of insulation testing device for electric automobile, including microprocessor, ADC modular converter, voltage detection module, resistance detection module, Insulation monitoring processing module, warning module, protection module, Power control module, microprocessor is connected with ADC modular converter, ADC modular converter respectively with voltage detection module, resistance detection module is connected, ADC modular converter can be by input microprocessor after voltage and resistance conversion, by microprocessor, signal is processed, microprocessor is connected with warning module, protection module is connected with warning module, Insulation monitoring processing module respectively with microprocessor, protection module is connected, Power control module is connected with unit module respectively, electric power is provided to support for modules.
As a kind of preferred version of the present utility model, described Insulation monitoring processing module includes pwm signal converting unit, it is possible to export to microprocessor after being processed by pwm signal.
As a kind of preferred version of the present utility model, described protection module includes that sample circuit and processing unit, described sample circuit are connected with processing unit.
As a kind of preferred version of the present utility model, described microprocessor will be by warning module outputting alarm signal.
Compared with prior art, the beneficial effect that this utility model possesses: this utility model can pass through high performance bus formula Intelligent leakage-current sensor measurement insulation leakagel volume leakage stream, Bus Voltage is measured and is used high accuracy isolating transmitter to complete, measurement at resistance to earth simultaneously considers on-the-spot various complex situations on calculating, to control accurately and reliably to ensure that the measurement of bus resistance to earth is rapidly with accurate with unique algorithm, and the protected location of employing can effectively protect the personal safety of user in system, can detection resistance value in real time, internal system energy-conserving and environment-protective, easy for installation, durable in use.
Accompanying drawing explanation
Fig. 1 is the structural representation of insulation testing device for electric automobile.
Fig. 2 is the operation connection figure of electric automobile insulation detection.
Detailed description of the invention
Below in conjunction with the accompanying drawings and detailed description of the invention, it is further elucidated with this utility model, it should be understood that following detailed description of the invention is merely to illustrate this utility model rather than limits scope of the present utility model.It should be noted that the word "front", "rear" used in describing below, "left", "right", "up" and "down" refer to the direction in accompanying drawing, word " interior " and " outward " refer respectively to the direction towards or away from particular elements geometric center.
A kind of insulation testing device for electric automobile as shown in Figure 1, including microprocessor, ADC modular converter, voltage detection module, resistance detection module, Insulation monitoring processing module, warning module, protection module, Power control module, microprocessor is connected with ADC modular converter, ADC modular converter respectively with voltage detection module, resistance detection module is connected, ADC modular converter can be by input microprocessor after voltage and resistance conversion, by microprocessor, signal is processed, microprocessor is connected with warning module, protection module is connected with warning module, Insulation monitoring processing module respectively with microprocessor, protection module is connected, Power control module is connected with unit module respectively, electric power is provided to support for modules；
Preferably, Insulation monitoring processing module includes pwm signal converting unit, it is possible to export to microprocessor after being processed by pwm signal；
Preferably, protection module includes that sample circuit and processing unit, described sample circuit are connected with processing unit；
Preferably, microprocessor will be by warning module outputting alarm signal；
In the structural representation of electric automobile insulation detection as shown in Figure 1, 2, voltage and resistance are measured respectively by voltage detection module with resistance detection module, by ADC modular converter, detected value is delivered to microprocessor, the electric current that microprocessor is measured in loop can produce a sampling voltage on sample resistance Rm, this voltage signal is built microprocessor collection, can be drawn the size of insulation resistance by computing.The insulating resistance value calculated is converted into the dutycycle of pwm signal by microprocessor; and externally exported by Insulation monitoring processing module; the signal that warning module exports according to insulation processing module carries out signal early warning; and activate protected location; sample circuit activates protected mode with processing unit; microprocessor therein with the edge resistance value of real-time online dynamic monitoring system, and can be transferred to microprocessor by pwm signal converting unit, and resistance value is exported.
Technological means disclosed in this utility model scheme is not limited only to the technological means disclosed in above-mentioned embodiment, also includes the technical scheme being made up of above technical characteristic combination in any.It should be pointed out that, for those skilled in the art, on the premise of without departing from this utility model principle, it is also possible to make some improvements and modifications, these improvements and modifications are also considered as protection domain of the present utility model.
Claims (4)
1. an insulation testing device for electric automobile, it is characterized in that: include microprocessor, ADC modular converter, voltage detection module, resistance detection module, Insulation monitoring processing module, warning module, protection module, Power control module, described microprocessor is connected with ADC modular converter, ADC modular converter respectively with voltage detection module, resistance detection module is connected, ADC modular converter can be by input microprocessor after voltage and resistance conversion, by microprocessor, signal is processed, microprocessor is connected with warning module, protection module is connected with warning module, Insulation monitoring processing module respectively with microprocessor, protection module is connected, Power control module is connected with unit module respectively, electric power is provided to support for modules.
Insulation testing device for electric automobile the most according to claim 1, it is characterised in that: described Insulation monitoring processing module includes pwm signal converting unit, it is possible to export to microprocessor after being processed by pwm signal.
Insulation testing device for electric automobile the most according to claim 1, it is characterised in that: described protection module includes that sample circuit and processing unit, described sample circuit are connected with processing unit.
Insulation testing device for electric automobile the most according to claim 1, it is characterised in that: described microprocessor will be by warning module outputting alarm signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620265422.6U CN205484676U (en) | 2016-04-01 | 2016-04-01 | Insulation testing device for electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620265422.6U CN205484676U (en) | 2016-04-01 | 2016-04-01 | Insulation testing device for electric automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205484676U true CN205484676U (en) | 2016-08-17 |
Family
ID=56645615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620265422.6U Expired - Fee Related CN205484676U (en) | 2016-04-01 | 2016-04-01 | Insulation testing device for electric automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205484676U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109254235A (en) * | 2018-11-26 | 2019-01-22 | 重庆长安汽车股份有限公司 | The insulation monitoring device and method of new-energy automobile exchange harness |
| CN113466737A (en) * | 2020-03-31 | 2021-10-01 | 比亚迪股份有限公司 | Electric leakage sensor, electric leakage detection method, electric leakage detection system, storage medium and vehicle |
-
2016
- 2016-04-01 CN CN201620265422.6U patent/CN205484676U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109254235A (en) * | 2018-11-26 | 2019-01-22 | 重庆长安汽车股份有限公司 | The insulation monitoring device and method of new-energy automobile exchange harness |
| CN113466737A (en) * | 2020-03-31 | 2021-10-01 | 比亚迪股份有限公司 | Electric leakage sensor, electric leakage detection method, electric leakage detection system, storage medium and vehicle |
| CN113466737B (en) * | 2020-03-31 | 2022-12-09 | 比亚迪股份有限公司 | Electric leakage sensor, electric leakage detection method, electric leakage detection system, storage medium and vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160817 Termination date: 20190401 |