CN110588544A - Device and method for grounding electrical appliance system of new energy automobile to be grounded to common ground - Google Patents
Device and method for grounding electrical appliance system of new energy automobile to be grounded to common ground Download PDFInfo
- Publication number
- CN110588544A CN110588544A CN201910925601.6A CN201910925601A CN110588544A CN 110588544 A CN110588544 A CN 110588544A CN 201910925601 A CN201910925601 A CN 201910925601A CN 110588544 A CN110588544 A CN 110588544A
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- China
- Prior art keywords
- grounding
- common
- new energy
- energy automobile
- vehicle
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
- H01R11/01—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the form or arrangement of the conductive interconnection between the connecting locations
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
- H01R11/03—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the relationship between the connecting locations
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R2201/00—Connectors or connections adapted for particular applications
- H01R2201/26—Connectors or connections adapted for particular applications for vehicles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention provides a device for grounding and common grounding of an electric system of a new energy automobile and a method for grounding and common grounding. And arranging grounding common-ground devices at different parts of the vehicle, and connecting the sub-modules of each part of the low-voltage electric appliance system and the high-voltage electric appliance system on the vehicle with the device grounding respectively. By adopting the device and the method, the grounding common ground of multiple parts can be realized in a modular mode, the defects that grounding terminals with scattered grounding points are easy to corrode and inconvenient to overhaul are overcome, and meanwhile, the main metal plate can be connected with the cathode of the storage battery through a lead, so that a second grounding common ground is added, and the grounding common ground reliability of a high-low voltage electric appliance system is improved.
Description
Technical Field
The invention relates to a grounding device and a grounding method of an electric system, in particular to a grounding common-ground device and a common-ground grounding method of the electric system of a new energy automobile.
Background
The new energy automobile is added with a battery stack (such as a fuel battery stack), a power battery system, an electric drive system and a whole automobile electric control system which are provided by power energy, and the three systems all work in a high-voltage state, so that new challenges are presented in the aspects of grounding and high-voltage insulation. In the whole vehicle circuit, grounding is very important for the whole circuit, and the quality of a grounding loop is the key of the good and bad work of a high-low voltage electric appliance system of a new energy vehicle. The novel energy automobile high-low voltage electric appliance grounding points are distributed on the whole automobile body, the control system is arranged in the front cabin, the driving system is arranged in the rear cabin, the power battery system is arranged in the middle cabin, the direct grounding mode of all electric appliance parts is adopted at present, the grounding points are multiple and wide in distribution, the positions of the grounding points and the load connected by each grounding point are mainly concentrated on the parts such as an instrument panel pipe beam, an automobile body cabin body, an underframe and the rear cabin, some grounding parts are easily stained with muddy water, greasy dirt or rust, grounding wire fastening bolts are loosened, or the corrosion resistance of grounding terminals is increased, and the like, the situations can cause poor grounding, so that functional faults occur, the normal work of high-low voltage electric appliances is.
Disclosure of Invention
The invention aims to provide a device for common grounding of a new energy vehicle electrical system and a method for grounding of various system components and the like of the new energy vehicle, which can effectively solve the problems of scattered grounding points, inconvenient maintenance and the like. The invention is realized by the following scheme:
a device for grounding and common grounding of an electric system of a new energy automobile is composed of a plurality of conductive metal plates, and is of an integral structure formed by a transverse metal plate and a plurality of longitudinal metal rows in the direction vertical to the transverse metal plate, and the longitudinal metal plates are welded on the transverse metal plate to form an integral body; the transverse metal plate is provided with a main perforation and at least 2 second perforations, the aperture of the main perforation is larger than that of the second perforations, and each longitudinal metal plate is provided with at least 2 perforations. Usually the transverse metal plates are called main metal plates and the longitudinal metal plates are sub-metal plates.
Usually, metal copper with excellent conductivity is adopted as a material, generally called as a main metal plate as a main copper bar, and a longitudinal metal plate as a branch copper bar.
The scheme of the integral structure formed by one transverse metal plate and 4 longitudinal metal plates is simple and practical by adopting the number of the longitudinal metal plates to be 4.
For convenient processing, the second perforation of the transverse metal plate and the plurality of perforations of each longitudinal metal plate have the same aperture; generally, the width of the longitudinal metal plates is smaller than that of the transverse metal plates, and it is more convenient to process all the longitudinal metal plates having the same width.
A method for grounding electric systems of a new energy automobile is characterized in that a device for grounding and grounding is fixed at the position of a chassis or a body framework at the front part of the automobile, the device is connected with the cathode of a storage battery through a main through hole by a lead, and each longitudinal metal plate is grounded and grounded with a vehicle-mounted analog signal part, a CAN bus shielding layer, a wire harness assembly and a low-voltage electric appliance respectively in sequence.
The better scheme is that a device for grounding is further fixed at the position of a vehicle chassis or a vehicle body framework at the rear part of the vehicle, the device is connected with the negative electrode of the storage battery through a main perforation by a lead, and each longitudinal metal plate is grounded and grounded with a power battery shell, a vehicle control unit shell, a BMS controller shell, a five-in-one controller shell, a driving motor shell, a motor controller shell and a battery stack provided by power energy sources and a DCF shell respectively in sequence.
The better proposal is that two grounding common-ground devices are fixed at the position of the vehicle underframe or the vehicle body framework in the middle of the vehicle; the first grounding common-ground device is connected with the cathode of the storage battery through a main perforation by a lead, and each longitudinal metal plate is grounded and common-grounded with the power battery shell, the vehicle control unit shell, the BMS controller shell, the five-in-one controller shell, the driving motor shell, the motor controller shell and the battery stack and DCF shell provided by power energy respectively in sequence; the second grounding common-ground device is connected with the cathode of the storage battery through a main through hole by a lead, and each longitudinal metal plate is grounded with the vehicle-mounted analog signal component, the CAN bus shielding layer, the wire harness assembly and the low-voltage electrical appliance respectively in sequence.
Compared with the prior art, by adopting the device and the grounding method, the grounding of multiple parts can be realized in a modular mode, and the defects that grounding terminals with scattered grounding points are easy to corrode and inconvenient to overhaul are overcome; meanwhile, the defects that the shell of a high-voltage electric appliance system, the power ground of a low-voltage electric appliance system, a CAN bus and an analog signal grounding iron are subjected to special anti-corrosion treatment with the grounding point of a vehicle body in the prior art are overcome; and the main metal plate of the device can be connected with the cathode of the storage battery through a lead, so that a second grounding common place is added, and the grounding common place reliability of the high-low voltage electric appliance system is improved.
Drawings
FIG. 1 is a schematic plan view of a device grounded in common in embodiment 1
FIG. 2 is a schematic diagram of the connection of the second grounding common-ground device located at the front end and the middle part of the vehicle in the embodiment 2 of the grounding common-ground method
FIG. 3 is a schematic diagram of the first grounding common-ground device located at the rear end and the middle part of the vehicle in the grounding common-ground method of embodiment 2
Detailed Description
Example 1
A device for grounding and common grounding of an electrical system of a hydrogen fuel cell new energy automobile is characterized in that as shown in figure 1, a main copper bar 1 is welded with four copper sub-bars 2 to form an integral structure, and the thickness of the copper bar is 3 mm. The width of the main copper bar is 30mm, a main through hole 11 with the aperture phi of 10mm is formed in the main copper bar, four second through holes 12 with the aperture phi of 8.5mm are formed in the main copper bar, the main through hole 11 is used for connecting the device with a lead connected with the cathode of the storage battery, and the four second through holes 12 are used for fixing the device on an underframe or a car body framework; every divides copper bar structure and specification completely the same, and its width is 25mm, and it has two second perforation 22 to open on every divides copper bar, and the aperture is phi 8.5mm, and second perforation 22 also is used for being fixed in chassis or automobile body skeleton with the device.
Example 2
A method for grounding an electric system of a new energy automobile is characterized in that a device which is grounded and is grounded in an embodiment 1 is fixed at the position of a vehicle body framework at the front part of the vehicle through a second through hole 12 on a main copper bar and a second through hole 22 on a copper distribution bar, as shown in a wiring principle diagram in figure 2, a conducting wire is used for connecting the device with the cathode of a storage battery through the main through hole 11 on the main copper bar 1, and the copper distribution bar 2 is grounded and grounded with a vehicle-mounted analog signal part, a CAN bus shielding layer, a wire harness assembly and a low-voltage electric appliance which are positioned at the front part of the vehicle from left to right; a device for grounding and common grounding of the embodiment 1 is further fixed at the position of the vehicle bottom frame at the rear part of the vehicle, as shown in a wiring schematic diagram of fig. 3, a lead is used for connecting the device with the cathode of the storage battery through a main perforation hole 11 on a main copper bar 1, and a branch copper bar 2 is grounded and common grounded with a power battery shell, a vehicle control unit shell and a BMS controller shell & a five-in-one controller shell, a driving motor shell & a motor controller shell and a fuel cell stack & DCF shell at the rear part of the vehicle from left to right respectively; the two grounding and common-grounding devices of the embodiment 1 are fixed at the position of a vehicle body framework at the middle position of a vehicle, one of the grounding and common-grounding devices is connected with the cathode of a storage battery through a main through hole 11 on a main copper bar 1 by a lead according to the principle shown in fig. 3, a copper distribution bar 2 is grounded and common-grounded with a power battery shell, a vehicle control unit shell, a BMS controller shell, a five-in-one controller shell, a driving motor shell, a motor controller shell and a DCF shell which are positioned at the middle part of the vehicle from left to right respectively, the other grounding and common-grounding device is connected with the cathode of the storage battery through the main through hole 11 on the main copper bar 1 by a lead according to the principle shown in fig. 2, and the copper distribution bar 2 is grounded and common-grounded with the vehicle-mounted analog signal component, the CAN bus shielding layer, the wire harness.
Claims (9)
1. The utility model provides a device that is used for new energy automobile electrical apparatus system ground connection to go to ground which characterized in that: the conductive metal plate is an integral structure formed by a transverse metal plate and a plurality of longitudinal metal rows perpendicular to the transverse metal plate, a main perforation and at least 2 second perforations are formed in the transverse metal plate, the aperture of the main perforation is larger than that of the second perforations, and at least 2 perforations are formed in each longitudinal metal plate.
2. The device for grounding the electric system of the new energy automobile in common as claimed in claim 1, wherein: the conductive metal is copper.
3. The device for grounding the electric system of the new energy automobile in common as claimed in claim 1, wherein: the number of the longitudinal metal plates is 4.
4. The device for grounding the electric system of the new energy automobile in common as claimed in any one of claims 1 to 3, wherein: the second perforation of the transverse metal plate and the plurality of perforations of each longitudinal metal plate have the same aperture.
5. The device for grounding the electric system of the new energy automobile in common as claimed in any one of claims 1 to 3, wherein: the width of the longitudinal metal plates is smaller than that of the transverse metal plates.
6. The device for grounding the electric system of the new energy automobile in common as claimed in claim 5, wherein: the widths of all the longitudinal metal plates are the same.
7. A method for grounding an electric system of a new energy automobile is characterized in that: the device for grounding common ground of the electrical system of the new energy automobile, which is disclosed by any one of claims 1 to 6, is fixed at the position of a vehicle chassis or a vehicle body framework at the front part of the automobile, the device is connected with the cathode of a storage battery through a main through hole by a lead, and each longitudinal metal plate is grounded common ground with a vehicle-mounted analog signal part, a CAN bus shielding layer, a wire harness assembly and a low-voltage electrical apparatus respectively in sequence.
8. The method for connecting the electric systems of the new energy automobile in the common ground according to claim 7, characterized in that: the device for grounding the electric system of the new energy automobile is further fixed at the position of the vehicle chassis or the vehicle body framework at the rear part of the vehicle, the device is connected with the negative electrode of the storage battery through a main perforation by a lead, and each longitudinal metal plate is grounded and grounded with the power battery shell, the vehicle control unit shell & BMS controller shell & five-in-one controller shell, the driving motor shell & motor controller shell and the battery stack & DCF shell provided by the power energy source respectively in sequence.
9. The method for connecting the electric systems of the new energy automobile in the common ground according to claim 8, characterized in that: the two devices for grounding the electric system of the new energy automobile common ground as claimed in one of claims 1-6 are fixed at the position of the vehicle underframe or the vehicle body framework in the middle of the vehicle; the first grounding common-ground device is connected with the cathode of the storage battery through a main perforation by a lead, and each longitudinal metal plate is grounded and common-grounded with the power battery shell, the vehicle control unit shell, the BMS controller shell, the five-in-one controller shell, the driving motor shell, the motor controller shell and the battery stack and DCF shell provided by power energy respectively in sequence; the second grounding common-ground device is connected with the cathode of the storage battery through a main through hole by a lead, and each longitudinal metal plate is grounded with the vehicle-mounted analog signal component, the CAN bus shielding layer, the wire harness assembly and the low-voltage electrical appliance respectively in sequence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910925601.6A CN110588544A (en) | 2019-09-27 | 2019-09-27 | Device and method for grounding electrical appliance system of new energy automobile to be grounded to common ground |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910925601.6A CN110588544A (en) | 2019-09-27 | 2019-09-27 | Device and method for grounding electrical appliance system of new energy automobile to be grounded to common ground |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110588544A true CN110588544A (en) | 2019-12-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910925601.6A Pending CN110588544A (en) | 2019-09-27 | 2019-09-27 | Device and method for grounding electrical appliance system of new energy automobile to be grounded to common ground |
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| Country | Link |
|---|---|
| CN (1) | CN110588544A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0644034U (en) * | 1992-11-11 | 1994-06-10 | 住友電装株式会社 | Ground connector |
| KR200357907Y1 (en) * | 2004-05-07 | 2004-07-30 | 경신공업 주식회사 | A Multi Earth Terminal Of Motors |
| CN102437438A (en) * | 2011-08-29 | 2012-05-02 | 机械工业第三设计研究院 | Instrument and control system grounding device and method |
| CN104442626A (en) * | 2013-09-25 | 2015-03-25 | 通用汽车环球科技运作有限责任公司 | Flow Drill Screw Attached Grounding Block |
| CN204732939U (en) * | 2015-07-14 | 2015-10-28 | 安徽江淮汽车股份有限公司 | A kind of jockey of automobile power system |
| CN204958192U (en) * | 2015-07-13 | 2016-01-13 | 徐工集团工程机械股份有限公司 | Caterpillar crane electric control system ground wire connection structure and caterpillar crane |
| WO2016129380A1 (en) * | 2015-02-13 | 2016-08-18 | 株式会社オートネットワーク技術研究所 | Vehicle ground wiring structure |
| CN106515628A (en) * | 2016-11-15 | 2017-03-22 | 安徽江淮汽车集团股份有限公司 | Electrical ground device of cab |
| US10144371B1 (en) * | 2017-09-29 | 2018-12-04 | GM Global Technology Operations LLC | Grounding element including block and plate |
| CN110091817A (en) * | 2019-05-08 | 2019-08-06 | 珠海广通汽车有限公司 | A kind of multiple spot centralized earthing device and multiple spot concentrate earthed system |
| CN211055076U (en) * | 2019-09-27 | 2020-07-21 | 佛山市飞驰汽车制造有限公司 | Device for grounding electric appliance system of new energy automobile |
-
2019
- 2019-09-27 CN CN201910925601.6A patent/CN110588544A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0644034U (en) * | 1992-11-11 | 1994-06-10 | 住友電装株式会社 | Ground connector |
| KR200357907Y1 (en) * | 2004-05-07 | 2004-07-30 | 경신공업 주식회사 | A Multi Earth Terminal Of Motors |
| CN102437438A (en) * | 2011-08-29 | 2012-05-02 | 机械工业第三设计研究院 | Instrument and control system grounding device and method |
| CN104442626A (en) * | 2013-09-25 | 2015-03-25 | 通用汽车环球科技运作有限责任公司 | Flow Drill Screw Attached Grounding Block |
| WO2016129380A1 (en) * | 2015-02-13 | 2016-08-18 | 株式会社オートネットワーク技術研究所 | Vehicle ground wiring structure |
| CN204958192U (en) * | 2015-07-13 | 2016-01-13 | 徐工集团工程机械股份有限公司 | Caterpillar crane electric control system ground wire connection structure and caterpillar crane |
| CN204732939U (en) * | 2015-07-14 | 2015-10-28 | 安徽江淮汽车股份有限公司 | A kind of jockey of automobile power system |
| CN106515628A (en) * | 2016-11-15 | 2017-03-22 | 安徽江淮汽车集团股份有限公司 | Electrical ground device of cab |
| US10144371B1 (en) * | 2017-09-29 | 2018-12-04 | GM Global Technology Operations LLC | Grounding element including block and plate |
| CN110091817A (en) * | 2019-05-08 | 2019-08-06 | 珠海广通汽车有限公司 | A kind of multiple spot centralized earthing device and multiple spot concentrate earthed system |
| CN211055076U (en) * | 2019-09-27 | 2020-07-21 | 佛山市飞驰汽车制造有限公司 | Device for grounding electric appliance system of new energy automobile |
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Address after: 528000 No. 39 Shiwan Xingang Road, Chancheng District, Foshan City, Guangdong Province Applicant after: Foshan Feichi Automobile Technology Co.,Ltd. Address before: 528000 No. 39 Shiwan Xingang Road, Chancheng District, Foshan City, Guangdong Province Applicant before: Foshan City Feichi Automobile Manufacturing Co.,Ltd. |
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