CN212796537U - Double-layer PCB module of electric automobile PDU - Google Patents
Double-layer PCB module of electric automobile PDU Download PDFInfo
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- CN212796537U CN212796537U CN202021324399.6U CN202021324399U CN212796537U CN 212796537 U CN212796537 U CN 212796537U CN 202021324399 U CN202021324399 U CN 202021324399U CN 212796537 U CN212796537 U CN 212796537U
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- 238000001514 detection method Methods 0.000 claims abstract description 41
- HEZMWWAKWCSUCB-PHDIDXHHSA-N (3R,4R)-3,4-dihydroxycyclohexa-1,5-diene-1-carboxylic acid Chemical compound O[C@@H]1C=CC(C(O)=O)=C[C@H]1O HEZMWWAKWCSUCB-PHDIDXHHSA-N 0.000 claims abstract description 11
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 7
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- 238000010992 reflux Methods 0.000 claims abstract description 4
- 238000004378 air conditioning Methods 0.000 claims description 6
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000013461 design Methods 0.000 description 6
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- 230000010354 integration Effects 0.000 description 3
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- 238000011161 development Methods 0.000 description 2
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- 238000012360 testing method Methods 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
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- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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Abstract
The utility model relates to an electric automobile PDU technical field, especially a double-deck PCB board module of electric automobile PDU, including relay PCB board and fuse PCB board, set up high-voltage line and low-voltage line respectively on the both sides of relay PCB board and fuse PCB board, high-voltage line is formed by copper bar embedded inside PCB board, the low-voltage line is formed by the surface copper-clad; the high-voltage line is integrated with a main pre-charging circuit, an air conditioner circuit, a PTC electrical reflux circuit, a DCDC electrical circuit and an OBC electrical circuit; a relay coil control circuit, a voltage detection circuit and a high-voltage interlocking circuit are integrated on a low-voltage line; the utility model provides a double-deck PCB board module of electric automobile PDU, saving assembly space that can be great reduces because relay, big devices such as fuse and produce the problem of overall arrangement difficulty, has reduced the pencil and has connected fixed problem, can avoid the pencil too much and contact failure who leads to, takes off the needle, moves back the problem of needle, convenient maintenance and the problem of seeking.
Description
Technical Field
The utility model belongs to the technical field of electric automobile PDU technique and specifically relates to an electric automobile PDU's double-deck PCB board module.
Background
New energy vehicles are rapidly developed under the strong support of national policies. The electric automobile develops rapidly, and has great challenges for the endurance mileage of the whole automobile, an electric system, 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, the complexity of the structure of the whole vehicle and the cost, the industry widely adopts the structure of the centralized high-voltage electrical system for power distribution. The high-voltage power supply is directly distributed to system high-voltage electric products according to the requirements of the system after entering the high-voltage distribution box, and has high requirements on how to ensure the safety, system insulation, electromagnetic interference, shielding, sealing, vibration resistance and the like of the whole high-voltage system and each electric device thereof. Common high-voltage distribution box parts are independently installed in the distribution box in sequence like a fuse, a relay, a pre-charging relay and a copper plate, and a high-voltage circuit, a low-voltage control circuit and an interlocking circuit are connected by adopting a high-voltage cable. The problems of difficult equipment, complicated wiring and poor reliability are caused; because electric automobile development lightweight at present, the integrated level is higher and higher, leads to the continuous compression in high voltage distribution box space. At present, the conventional installation mode can not meet the requirements of customers, and the development towards the integration and integration of devices is needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a double-deck PCB board module of electric automobile PDU in order to solve not enough of above-mentioned technique, saved assembly space and promoted stability.
In order to achieve the purpose, the utility model relates to a double-layer PCB module of an electric vehicle PDU, which comprises a relay PCB and a fuse PCB, wherein a high-voltage circuit and a low-voltage circuit are respectively arranged on two sides of the relay PCB and the fuse PCB, the high-voltage circuit is formed by embedding copper bars in the PCB, and the low-voltage circuit is formed by coating copper on the surface; the high-voltage line is integrated with a main pre-charging circuit, an air conditioner circuit, a PTC electrical reflux circuit, a DCDC electrical circuit and an OBC electrical circuit; a relay coil control circuit, a voltage detection circuit and a high-voltage interlocking circuit are integrated on a low-voltage line;
wherein: the main pre-charging loop comprises: the battery plus input is connected to the relay PCB P4, passes through the main pre-charging relay to the pre-charging resistor, and then to the motor connector for output;
the air conditioner pre-charging loop comprises: the battery plus input is connected to the relay PCB P4, passes through the air conditioner pre-charging relay to the pre-charging resistor, and then to the air conditioner connector for output;
the air-conditioning loop is as follows: the battery + input is connected to the relay PCB P10, and then to the fuse PCB F1 input end and then to the air conditioner connector output through the air conditioner relay;
the PTC electric loop is as follows: the battery plus input is connected to the relay PCB P7, and then to the fuse PCB F2 input through the PTC relay, and then to the PTC connector output;
the DCDC electric loop is as follows: the battery is input to a fuse PCB F4 and then output to the DCDC control module;
the OBC electric loop is as follows: the battery is input to a fuse PCB F3 and then output to the OBC control module;
the relay coil control circuit is as follows: a 12V + power supply is input into a relay PCB P8, and is electrically connected with a main pre-charging relay, an air conditioner pre-charging relay, a PTC relay and a coil of the air conditioner relay through the relay PCB;
the voltage detection circuit is: the control signals respectively carry out total positive voltage detection, main relay output detection, quick charge relay output detection, air conditioner pre-charge relay output detection, air conditioner relay output detection, OBC relay output detection, main pre-charge relay output detection, PTC relay output detection and total negative detection through P9, P3 and P2 on the relay PCB;
the high-voltage interlocking loop is as follows: the interlock circuit of all connectors is communicated through P10, P13, P14, P15, P5, P11 and P12 of the fuse PCB board.
The utility model provides an electric automobile PDU's double-deck PCB board module has following characteristics:
1. the used PCB board is made of the material with the benefits of 1000 or FR-4 and the flame retardant rating of UL 94-V0;
2. The high-voltage line and the low-voltage line are separately designed on the PCB, so that the safety is high;
3. the integrated high-voltage interlocking connector, the relay control connector and the high-voltage detection point connector facilitate the connection of lines.
4. A main pre-charging loop and an air conditioner pre-charging loop are integrated on the PCB;
5. A relay, a fuse, a high-voltage interlocking signal and a relay control signal are integrated on the PCB;
6. the device has the voltage detection function and the relay adhesion detection function, and can continuously perform online detection.
The utility model provides an electric automobile PDU's double-deck PCB board module has following advantage:
1. compared with the traditional high-voltage distribution box, the scheme can greatly save the assembly space and reduce the problem of difficult layout caused by large devices such as relays, fuses and the like.
2. Compare with traditional high voltage distribution box, reduced the pencil and connected fixed problem, can avoid the pencil too much and contact failure who leads to, take off the needle, move back the problem of needle.
3. Compared with the traditional high-voltage distribution box, the high-voltage distribution box has the advantages that the circuit is clear, and the maintenance and the problem searching are convenient.
And 4, reserving detection points on the PCB, and facilitating the test of voltage and current during testing.
The utility model provides a double-layer PCB module of an electric vehicle PDU,
wherein the PCB board divide into relay PCB board and fuse PCB board, and passes through the input of wire connection relay PCB board with the output of fuse PCB board, because the frequency that the fuse required to be changed is higher, so both separately designs, can reduce the replacement cost, and the change efficiency is higher, only need change alone can.
The PCB board high-voltage electrical circuit adopts embedded copper-clad design, and the low-voltage electrical circuit sets up on the PCB board surface, and with embedded copper bar keep safe creepage distance and creepage clearance, high low-voltage distributing type wiring improves product rationality, aesthetic property, maneuverability greatly, can save production man-hour, maintains succinctly clear, relay and intelligent detection module control pass through intelligent detection module output dry contact control. The stability of the circuit is ensured, and the design requirement of national standard electrical is met.
2. The volume is fully reduced by adopting a 2mm double-layer PCB and an upper-layer structure design and a lower-layer structure design of 130.53mm 130.41 mm. The integration level is high and the function is strong. The method has obvious advantages for a multi-path high-low voltage electric layout.
3. All low-voltage control circuits are integrated on one relay PCB, and can be used for respectively controlling and connecting more than 4 relay control circuits. The pre-charging relay, the air-conditioning relay, the PTC relay, the OBC relay and the like can be respectively controlled. The interlocking circuits of all high-voltage connectors are completely integrated on the fuse PCB, so that the wiring of the circuits and the failure rate of poor contact can be reduced, and the safety performance is ensured.
And 4, connectors used on the PCB are vehicle gauge connectors and all have locking plate functions. The inside is provided with a self-locking device, thereby ensuring the phenomena of needle falling and needle withdrawing.
5. The air conditioner connector, the vehicle-mounted charger connector, the air conditioner fuse, the PTC fuse, the DCDC fuse and the total negative terminal are provided with fuses, and the fuses are fixedly embedded in the PCB.
Drawings
Fig. 1 is a circuit diagram of a fuse PCB board of the present invention;
fig. 2 is a circuit diagram of the relay PCB of the present invention.
Detailed Description
The invention is further described by the following embodiments in conjunction with the accompanying drawings.
Example 1:
as shown in fig. 1 and 2, the double-layer PCB module of the electric vehicle PDU described in this embodiment includes a relay PCB and a fuse PCB, wherein a high-voltage line and a low-voltage line are respectively disposed on two sides of the relay PCB and the fuse PCB, the high-voltage line is formed by copper bars embedded inside the PCB, and the low-voltage line is formed by copper-clad on the surface; the high-voltage line is integrated with a main pre-charging circuit, an air conditioner circuit, a PTC electrical reflux circuit, a DCDC electrical circuit and an OBC electrical circuit; a relay coil control circuit, a voltage detection circuit and a high-voltage interlocking circuit are integrated on a low-voltage line;
wherein: the main pre-charging loop comprises: the battery plus input is connected to the relay PCB P4, passes through the main pre-charging relay to the pre-charging resistor, and then to the motor connector for output;
the air conditioner pre-charging loop comprises: the battery plus input is connected to the relay PCB P4, passes through the air conditioner pre-charging relay to the pre-charging resistor, and then to the air conditioner connector for output;
the air-conditioning loop is as follows: the battery + input is connected to the relay PCB P10, and then to the fuse PCB F1 input end and then to the air conditioner connector output through the air conditioner relay;
the PTC electric loop is as follows: the battery plus input is connected to the relay PCB P7, and then to the fuse PCB F2 input through the PTC relay, and then to the PTC connector output;
the DCDC electric loop is as follows: the battery is input to a fuse PCB F4 and then output to the DCDC control module;
the OBC electric loop is as follows: the battery is input to a fuse PCB F3 and then output to the OBC control module;
the relay coil control circuit is as follows: a 12V + power supply is input into a relay PCB P8, and is electrically connected with a main pre-charging relay, an air conditioner pre-charging relay, a PTC relay and a coil of the air conditioner relay through the relay PCB;
the voltage detection circuit is: the control signals respectively carry out total positive voltage detection, main relay output detection, quick charge relay output detection, air conditioner pre-charge relay output detection, air conditioner relay output detection, OBC relay output detection, main pre-charge relay output detection, PTC relay output detection and total negative detection through P9, P3 and P2 on the relay PCB;
the high-voltage interlocking loop is as follows: the interlock circuit of all connectors is communicated through P10, P13, P14, P15, P5, P11 and P12 of the fuse PCB board.
Claims (1)
1. The utility model provides a double-deck PCB board module of electric automobile PDU which characterized by: the high-voltage circuit is formed by copper bars embedded in the PCB, and the low-voltage circuit is formed by copper-clad surfaces; the high-voltage line is integrated with a main pre-charging circuit, an air conditioner circuit, a PTC electrical reflux circuit, a DCDC electrical circuit and an OBC electrical circuit; a relay coil control circuit, a voltage detection circuit and a high-voltage interlocking circuit are integrated on a low-voltage line;
wherein: the main pre-charging loop comprises: the positive pole input of the battery is connected to a relay PCB P4, passes through a main pre-charging relay to a pre-charging resistor and then is output to a motor connector;
the air conditioner pre-charging loop comprises: the positive pole input of the battery is connected to a relay PCB P4, passes through an air conditioner pre-charging relay to a pre-charging resistor and then is output to an air conditioner connector;
the air-conditioning loop is as follows: the positive electrode input of the battery is connected to a relay PCB P10, and the battery passes through an air-conditioning relay to the input end of a fuse PCB F1 and then to the output end of an air-conditioning connector;
the PTC electric loop is as follows: the positive pole input of the battery is connected to the relay PCB P7, passes through the PTC relay and is input to the fuse PCB F2, and then is output to the PTC connector;
the DCDC electric loop is as follows: the positive pole of the battery is input into a fuse PCB board F4 and then output to the DCDC control module;
the OBC electric loop is as follows: the positive electrode of the battery is input into a fuse PCB board F3 and then output to the OBC control module;
the relay coil control circuit is as follows: a 12V + power supply is input into a relay PCB P8, and is electrically connected with a main pre-charging relay, an air conditioner pre-charging relay, a PTC relay and a coil of the air conditioner relay through the relay PCB;
the voltage detection circuit is: the control signals respectively carry out total positive voltage detection, main relay output detection, quick charge relay output detection, air conditioner pre-charge relay output detection, air conditioner relay output detection, OBC relay output detection, main pre-charge relay output detection, PTC relay output detection and total negative detection through P9, P3 and P2 on the relay PCB;
the high-voltage interlocking loop is as follows: the interlock circuit of all connectors is communicated through P10, P13, P14, P15, P5, P11 and P12 of the fuse PCB board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021324399.6U CN212796537U (en) | 2020-07-08 | 2020-07-08 | Double-layer PCB module of electric automobile PDU |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021324399.6U CN212796537U (en) | 2020-07-08 | 2020-07-08 | Double-layer PCB module of electric automobile PDU |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212796537U true CN212796537U (en) | 2021-03-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021324399.6U Active CN212796537U (en) | 2020-07-08 | 2020-07-08 | Double-layer PCB module of electric automobile PDU |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212796537U (en) |
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2020
- 2020-07-08 CN CN202021324399.6U patent/CN212796537U/en active Active
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Effective date of registration: 20230718 Granted publication date: 20210326 |
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Date of cancellation: 20240428 Granted publication date: 20210326 |