CN214337127U - High-voltage power distribution device of pure electric passenger car - Google Patents
High-voltage power distribution device of pure electric passenger car Download PDFInfo
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- CN214337127U CN214337127U CN202023351373.3U CN202023351373U CN214337127U CN 214337127 U CN214337127 U CN 214337127U CN 202023351373 U CN202023351373 U CN 202023351373U CN 214337127 U CN214337127 U CN 214337127U
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Abstract
The utility model discloses a high-voltage distribution device of a pure electric passenger car, which comprises a metal plate support plate, a high-voltage PCB, a high-voltage connector, a low-voltage wire harness and a main relay group; the metal plate supporting plate and the high-voltage PCB are arranged in parallel and are fixedly connected through a supporting column perpendicular to the metal plate supporting plate and the high-voltage PCB; the surface of the high-voltage PCB is pressed with a low-voltage wire harness with the end part connected with an external wire harness; a main relay group is arranged at the center of the metal plate supporting plate; a high-voltage connector connected with an external wire harness is fixed on the metal plate supporting plate; high-voltage connector and total relay group pass through high-pressure pencil electric connection, the utility model discloses, on integrating a high-pressure PCB board with the inside height of high-pressure distribution device, low pressure return circuit, stopped the too much mixed and disorderly condition of pencil that traditional pencil connected mode produced, also avoided too much pencil to connect the condition of inserting wrong definition interface to inserting appearing easily for whole high-pressure distribution unit structure is cleaner and tidier, and the volume is littleer and more exquisite.
Description
Technical Field
The utility model relates to an electric motor car distribution technical field specifically is a electricelectric moves passenger car high voltage distribution device.
Background
New energy vehicles are rapidly developed under the strong support of national policies. Generally, the high-voltage high-power high-voltage high-current high-voltage high-power high-voltage power distribution system runs under the electric power of a high-power whole vehicle, has high voltage and high current, and has great challenges for the design of a high-voltage power distribution system and the selection of high-voltage components. In view of the space of the whole vehicle and the complexity and cost of the whole vehicle structure, the industry widely adopts the centralized high-voltage electrical system structure for power distribution. The high-voltage power supply is directly distributed to system high-voltage electric products according to system requirements after entering the high-voltage distribution box, and the high-voltage power supply has high requirements on how to ensure the safety, integrity, convenience in maintenance and the like of the whole high-voltage system and each electric device thereof.
In high voltage distribution device, the circuit mainly contains high-pressure connecting circuit and low-voltage control circuit, and conventional high-pressure circuit adopts the copper bar overlap joint to form, and low-voltage circuit adopts traditional pencil to connect, and the big time spent of this mode binding degree of difficulty, and the structure is arranged occupation space big, and the increase cost is maintained the degree of difficulty with the installation.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve lies in: the high-voltage power distribution device of the pure electric passenger car is small in wire binding difficulty and fast in wire binding.
In order to solve the technical problem, the utility model provides a following technical scheme: a high-voltage distribution device of a pure electric passenger car comprises a metal plate supporting plate, a high-voltage PCB, a high-voltage connector, a low-voltage wire harness and a main relay group; the metal plate supporting plate and the high-voltage PCB are arranged in parallel and are fixedly connected through a supporting column perpendicular to the metal plate supporting plate and the high-voltage PCB; a low-voltage wire harness with the end part connected to an external wire harness is crimped on the surface of the high-voltage PCB; a main relay group is arranged at the center of the metal plate supporting plate; a high-voltage connector connected with an external wire harness is fixed on the metal plate supporting plate; and the high-voltage connector is electrically connected with the main relay group through a high-voltage wire harness.
Integrate a high-voltage PCB board with inside high, the low-voltage circuit of high-voltage distribution device on, stopped the too much mixed and disorderly condition of pencil that traditional pencil connected mode produced, also avoided too much pencil to connect the condition of inserting wrong definition interface to what appear easily for whole high-voltage distribution unit structure is cleaner and tidier, and the volume is littleer and handy. The product realizes the reduction of the size of the whole structure on the premise of meeting the same function, simplifies the steps of installation and maintenance, and reduces the manufacturing period and the cost of the product. The safety and the integrity of the high-voltage distribution system are improved; the circuit board is convenient to match with other circuit layouts, convenient to install and maintain and low in manufacturing cost.
Preferably, a plurality of insulators are fixed on the surface of the sheet metal supporting plate; a support column is welded at the top of the insulator; the bottom surface of the high-voltage PCB is welded at the top end of the support column.
Preferably, a first low-voltage connector and a second low-voltage connector are respectively fixed on two mutually vertical edges of the high-voltage PCB; the first low-voltage connector and the second low-voltage connector are electrically connected through a low-voltage wiring harness pressed on the high-voltage PCB.
Preferably, positive contacts are correspondingly welded on two sides of one end, close to the first compression joint plug-in unit, of the high-voltage PCB; and negative contacts are correspondingly welded on two sides of the other end of the high-voltage PCB.
Preferably, the main relay group comprises a negative relay group, a pre-charging relay group, a positive relay group and a heating relay group; the installation structure of the negative relay group is the same as that of the positive relay group; and the installation structure of the pre-charging relay group is the same as that of the heating relay group.
Preferably, the negative relay group comprises a positioning column, a negative relay, a threaded hole site, a clamping plate and a clamping hole; two symmetrically arranged positioning columns are welded on the metal plate supporting plate; two ends of the shell of the negative relay are sleeved on the two positioning columns; the top surface of the shell of the negative relay is provided with two symmetrically arranged thread hole sites; a clamping plate embedded in the top surface of the negative relay shell is arranged between the two threaded hole sites; the surface of the high-voltage PCB is provided with a clamping hole for the clamping plate to be inserted and positioned; bolts are symmetrically arranged on two sides of the clamping hole; the bolt penetrates through the high-voltage PCB and is connected with the threaded hole position in a threaded fit mode.
Preferably, the pre-charge relay group comprises a pre-charge relay and a fixing plate; a fixing plate arranged on the surface of the sheet metal supporting plate is arranged below the pre-charging relay; the pre-charging relay is fixedly connected with the fixing plate; the top end of the pre-charging relay is fixed with the high-voltage PCB.
Preferably, a shunt is further fixed on the high-voltage PCB; and a fuse is arranged on one side of the shunt, which faces the first low-voltage connector.
Preferably, the fuse is fixed on the high voltage PCB by bolts.
Preferably, a pre-charging resistor arranged beside the pre-charging relay is fixed on the metal plate supporting plate through a support.
A low-pressure part: the external butting wiring harness is respectively plugged onto the first low-voltage connector and the second low-voltage connector, the first low-voltage connector and the second low-voltage connector are electrically connected through the low-voltage wiring harness which is crimped on the high-voltage PCB, the low-voltage wiring harness which is crimped on the high-voltage PCB occupies a small space, wiring is not required, and the installation is rapid and simple; high-pressure part: in the positive pole loop, current flows into the high-voltage PCB through the positive pole contact of the battery, passes through the positive relay set and then flows out through the positive pole contact; the current flows into the shunt through the high-voltage PCB through the negative contact and then flows back through the negative contact; the current flows into the pre-charging relay from the positive pole of the positive relay group through the high-voltage PCB, flows through the pre-charging resistor through the high-voltage wiring harness, and flows back to the negative pole of the positive relay group through the high-voltage wiring harness; the current flows into the fuse from the positive pole of the positive relay group through the high-voltage PCB, and flows out through the high-voltage wiring harness connected with the high-voltage connector; integrate a high-voltage PCB board with inside high, the low-voltage circuit of high-voltage distribution device on, stopped the too much mixed and disorderly condition of pencil that traditional pencil connected mode produced, also avoided too much pencil to connect the condition of inserting wrong definition interface to what appear easily for whole high-voltage distribution unit structure is cleaner and tidier, and the volume is littleer and handy. The product realizes the reduction of the size of the whole structure on the premise of meeting the same function, simplifies the steps of installation and maintenance, and reduces the manufacturing period and the cost of the product. The safety and the integrity of the high-voltage distribution system are improved; the circuit board is convenient to match with other circuit layouts, convenient to install and maintain and low in manufacturing cost.
Compared with the prior art, the beneficial effects of the utility model are that:
A. integrate a high-voltage PCB board with inside high, the low-voltage circuit of high-voltage distribution device on, stopped the too much mixed and disorderly condition of pencil that traditional pencil connected mode produced, also avoided too much pencil to connect the condition of inserting wrong definition interface to what appear easily for whole high-voltage distribution unit structure is cleaner and tidier, and the volume is littleer and handy. The product realizes the reduction of the size of the whole structure on the premise of meeting the same function, simplifies the steps of installation and maintenance, and reduces the manufacturing period and the cost of the product. The safety and the integrity of the high-voltage distribution system are improved; the circuit is convenient to match with other circuit layouts, is convenient to install and maintain, and has lower manufacturing cost;
B. first low pressure connector and second low pressure connector are through the low pressure pencil electric connection of crimping on high-pressure PCB board, and the low pressure pencil occupation space of crimping on high-pressure PCB board is little, need not to prick the line, and the installation is swift, simple and convenient.
Drawings
Fig. 1 is a perspective view of the high-voltage power distribution device of the pure electric passenger vehicle of the present invention;
fig. 2 is an exploded view of the high-voltage power distribution device of the pure electric passenger vehicle of the present invention;
fig. 3 is an enlarged view of a region a in fig. 2 according to the present invention.
Reference numerals: 1. a metal plate supporting plate; 2. a high voltage PCB board; 21. a support pillar; 3. a first low voltage connector; 4. a high voltage connector; 5. a low voltage wire harness; 6. a master relay group; 61. a negative relay group; 611. a positioning column; 612. a negative relay; 613. a threaded hole position; 614. clamping a plate; 615. a clamping hole; 62. pre-charging a relay group; 621. a pre-charging relay; 622. a fixing plate; 63. a positive relay group; 64. heating a relay set; 7. a negative contact; 8. a second low voltage connector; 9. and a positive electrode contact.
Detailed Description
In order to facilitate the understanding of the technical solutions of the present invention by those skilled in the art, the technical solutions of the present invention will now be further described with reference to the drawings attached to the specification.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
Referring to fig. 1 and fig. 2, the embodiment discloses a high-voltage distribution device for a pure electric passenger car, which includes a sheet metal support plate 1, a high-voltage PCB 2, a first low-voltage connector 3, a high-voltage connector 4, a low-voltage wire harness 5, a total relay group 6, a negative contact 7, a second low-voltage connector 8, and a positive contact 9.
Referring to fig. 2, the high voltage PCB 2 is disposed above the surface of the sheet metal support plate 1. A plurality of insulators are fixed on the surface of the metal plate supporting plate 1. The top of the insulator is welded with a support column 21. The bottom surface of the high-voltage PCB 2 is welded at the top end of the support column 21.
Referring to fig. 3, a first low voltage connector 3 and a second low voltage connector 8 are fixed to two mutually perpendicular sides of the high voltage PCB 2 by screws, respectively. The first low-voltage connector 3 and the second low-voltage connector 8 are electrically connected by a low-voltage harness 5 crimped on the high-voltage PCB 2.
Referring to fig. 2 and 3, positive contacts 9 are correspondingly welded on two sides of one end of the high-voltage PCB 2 close to the first crimping connector 3. And negative contacts 7 are correspondingly welded on two sides of the other end of the high-voltage PCB 2.
Referring to fig. 2, a high-voltage connector 4 is fixed on the surface of the sheet metal support plate 1 through a bracket.
The master relay group 6 includes a negative relay group 61, a pre-charge relay group 62, a positive relay group 63, and a heating relay group 64. The installation structure of the negative relay set 61 is the same as that of the positive relay set 63. The installation structure of the pre-charging relay group 62 is the same as that of the heating relay group 64.
The negative relay set 61 includes a positioning post 611, a negative relay 612, a threaded hole 613, a clamping plate 614, and a clamping hole 615. The welding has two reference column 611 that the symmetry set up on the panel beating backup pad 1. Two ends of the housing of the negative relay 612 are sleeved on the two positioning columns 611. The top surface of the housing of the negative relay 612 is provided with two symmetrically arranged screw hole sites 613. A clamping plate 614 embedded on the top surface of the housing of the negative relay 612 is arranged between the two threaded holes 613. The surface of the high-voltage PCB 2 is provided with a fastening hole 615 for inserting and positioning the fastening board 614. And bolts are symmetrically arranged on two sides of the clamping hole 615. The bolt passes through the high voltage PCB 2 and is connected to the threaded hole 613 by a thread fit.
The pre-charge relay set 62 includes a pre-charge relay 621 and a fixed plate 622. The pre-charging relay 621 is provided with a fixing plate 622 mounted on the surface of the metal plate supporting plate 1 below. The pre-charging relay 621 is fixedly connected with the fixing plate 622 through a screw. The top end of the pre-charging relay 621 is fixed with the high-voltage PCB through a screw.
And the high-voltage PCB 2 is also fixed with a shunt through a screw. And a fuse is arranged on one side of the shunt, which faces the first low-voltage connector. The fuse is fixed on the high-voltage PCB 2 through a bolt.
The sheet metal support plate 1 is fixed with a pre-charging resistor arranged beside the pre-charging relay 621 through a support.
And the high-voltage connector 4 is electrically connected with the main relay group 6, the negative contact 7, the positive contact 9, the shunt, the fuse and the pre-charging resistor through high-voltage wiring harnesses.
The working principle of the embodiment is as follows: a low-pressure part: the external butt-joint wiring harness is respectively inserted and connected to the first low-voltage connector 3 and the second low-voltage connector 8, the first low-voltage connector 3 and the second low-voltage connector 8 are electrically connected through the low-voltage wiring harness 5 which is pressed on the high-voltage PCB 2, the low-voltage wiring harness 5 which is pressed on the high-voltage PCB 2 occupies a small space, the wiring is not required to be bundled, and the installation is rapid and simple; high-pressure part: in the positive pole loop, current flows into the high-voltage PCB 2 through the battery positive pole contact 9, passes through the positive relay set 63, and flows out through the positive pole contact 9; a negative pole loop, wherein current flows into the shunt through the high-voltage PCB 2 via the negative pole contact 7 and then flows back through the negative pole contact 7; in the pre-charging loop, current flows into the pre-charging relay 621 from the positive electrode of the positive relay group 63 through the high-voltage PCB 2, flows through the pre-charging resistor through the high-voltage wiring harness, and flows back to the negative electrode of the positive relay group 63 through the high-voltage wiring harness; in the heating loop, current flows into the fuse from the positive pole of the positive relay group 63 through the high-voltage PCB 2 and flows out through the high-voltage wiring harness connected with the high-voltage connector 4; integrate a high-voltage PCB board 2 with inside high, the low pressure return circuit of high-voltage distribution device on, stopped the too much mixed and disorderly condition of pencil that traditional pencil connected mode produced, also avoided too much pencil to connect the condition of inserting wrong definition interface to what appear easily inserting for whole high-voltage distribution unit structure is cleaner and tidier, and the volume is littleer and more exquisite. The product realizes the reduction of the size of the whole structure on the premise of meeting the same function, simplifies the steps of installation and maintenance, and reduces the manufacturing period and the cost of the product. The safety and the integrity of the high-voltage distribution system are improved; the circuit board is convenient to match with other circuit layouts, convenient to install and maintain and low in manufacturing cost.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.
The above embodiments only show the embodiments of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and for those skilled in the art, a plurality of modifications and improvements can be made without departing from the concept of the present invention, and these modifications and improvements all belong to the protection scope of the present invention.
Claims (10)
1. The utility model provides a electricelectric moves passenger car high voltage distribution device which characterized in that: the system comprises a metal plate supporting plate, a high-voltage PCB, a high-voltage connector, a low-voltage wire harness and a main relay group; the metal plate supporting plate and the high-voltage PCB are arranged in parallel and are fixedly connected through a supporting column perpendicular to the metal plate supporting plate and the high-voltage PCB; a low-voltage wire harness with the end part connected to an external wire harness is crimped on the surface of the high-voltage PCB; a main relay group is arranged at the center of the metal plate supporting plate; a high-voltage connector connected with an external wire harness is fixed on the metal plate supporting plate; and the high-voltage connector is electrically connected with the main relay group through a high-voltage wire harness.
2. The high-voltage power distribution device of the pure electric passenger vehicle as claimed in claim 1, wherein: a plurality of insulators are fixed on the surface of the metal plate supporting plate; a support column is welded at the top of the insulator; the bottom surface of the high-voltage PCB is welded at the top end of the support column.
3. The high-voltage power distribution device of the pure electric passenger vehicle as claimed in claim 1, wherein: a first low-voltage connector and a second low-voltage connector are respectively fixed on two mutually vertical edges of the high-voltage PCB; the first low-voltage connector and the second low-voltage connector are electrically connected through a low-voltage wiring harness pressed on the high-voltage PCB.
4. The high-voltage power distribution device of the pure electric passenger vehicle as claimed in claim 1, wherein: two sides of one end, close to the first compression joint plug-in, of the high-voltage PCB are correspondingly welded with positive contacts; and negative contacts are correspondingly welded on two sides of the other end of the high-voltage PCB.
5. The high-voltage power distribution device of the pure electric passenger vehicle as claimed in claim 1, wherein: the main relay group comprises a negative relay group, a pre-charging relay group, a positive relay group and a heating relay group; the installation structure of the negative relay group is the same as that of the positive relay group; and the installation structure of the pre-charging relay group is the same as that of the heating relay group.
6. A pure electric passenger car high-voltage distribution device according to claim 5, characterized in that: the negative relay group comprises a positioning column, a negative relay, a thread hole position, a clamping plate and a clamping hole; two symmetrically arranged positioning columns are welded on the metal plate supporting plate; two ends of the shell of the negative relay are sleeved on the two positioning columns; the top surface of the shell of the negative relay is provided with two symmetrically arranged thread hole sites; a clamping plate embedded in the top surface of the negative relay shell is arranged between the two threaded hole sites; the surface of the high-voltage PCB is provided with a clamping hole for the clamping plate to be inserted and positioned; bolts are symmetrically arranged on two sides of the clamping hole; the bolt penetrates through the high-voltage PCB and is connected with the threaded hole position in a threaded fit mode.
7. A pure electric passenger car high-voltage distribution device according to claim 5, characterized in that: the pre-charging relay group comprises a pre-charging relay and a fixing plate; a fixing plate arranged on the surface of the sheet metal supporting plate is arranged below the pre-charging relay; the pre-charging relay is fixedly connected with the fixing plate; the top end of the pre-charging relay is fixed with the high-voltage PCB.
8. The high-voltage power distribution device of the pure electric passenger vehicle as claimed in claim 1, wherein: a shunt is also fixed on the high-voltage PCB; and a fuse is arranged on one side of the shunt, which faces the first low-voltage connector.
9. The high-voltage power distribution device of the pure electric passenger vehicle as claimed in claim 8, wherein: the fuse is fixed on the high-voltage PCB through a bolt.
10. The high-voltage power distribution device of the pure electric passenger vehicle as claimed in claim 1, wherein: the panel beating backup pad is fixed with the pre-charge resistance who sets up by the pre-charge relay through the support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023351373.3U CN214337127U (en) | 2020-12-30 | 2020-12-30 | High-voltage power distribution device of pure electric passenger car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023351373.3U CN214337127U (en) | 2020-12-30 | 2020-12-30 | High-voltage power distribution device of pure electric passenger car |
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| Publication Number | Publication Date |
|---|---|
| CN214337127U true CN214337127U (en) | 2021-10-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023351373.3U Active CN214337127U (en) | 2020-12-30 | 2020-12-30 | High-voltage power distribution device of pure electric passenger car |
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| Country | Link |
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| CN (1) | CN214337127U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116278751A (en) * | 2021-12-20 | 2023-06-23 | 比亚迪股份有限公司 | Power distribution device, battery pack and vehicle |
-
2020
- 2020-12-30 CN CN202023351373.3U patent/CN214337127U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116278751A (en) * | 2021-12-20 | 2023-06-23 | 比亚迪股份有限公司 | Power distribution device, battery pack and vehicle |
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Address after: Room 403, building a (incubator 16), No. 14, Wenguang Road, Xili community, Xili street, Nanshan District, Shenzhen, Guangdong 518000 Patentee after: Shenzhen Teri Huateng new energy Co.,Ltd. Patentee after: Liangshujin Address before: 518100 zone a, floor 3, building B, Qiaoyun factory, No. 1 Dahua Road, Yanchuan community, Songgang street, Bao'an District, Shenzhen, Guangdong Patentee before: SHENZHEN NANRUI HUATENG NEW ENERGY Co.,Ltd. Patentee before: Liangshujin |
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