CN218085085U - Electric automobile and high-voltage electric integrated system thereof - Google Patents
Electric automobile and high-voltage electric integrated system thereof Download PDFInfo
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- CN218085085U CN218085085U CN202222298202.1U CN202222298202U CN218085085U CN 218085085 U CN218085085 U CN 218085085U CN 202222298202 U CN202222298202 U CN 202222298202U CN 218085085 U CN218085085 U CN 218085085U
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- 230000010354 integration Effects 0.000 claims description 23
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- 238000010586 diagram Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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Abstract
The utility model provides an electric automobile and a high-voltage electric integrated system thereof, which comprises a first power supply integrated device and a second power supply integrated device; the first power supply integrated equipment comprises a first high-voltage distribution device and a voltage conversion device; the second power supply integrated equipment comprises a second high-voltage distribution device and a slow charging device; the first high-voltage distribution device is connected with a high-voltage battery, a voltage conversion device, a second high-voltage distribution device and a first high-voltage load of the electric automobile; the voltage conversion device is connected with a low-voltage battery of the electric automobile; the second high-voltage distribution device is also connected with a direct-current charging interface of the electric automobile, the slow charging device and a second high-voltage load of the electric automobile; the slow charging device is also connected with an alternating current charging interface of the electric automobile. Adopt the technical scheme of the utility model, volume, the pencil cost of high-voltage electrical integrated system have effectively been reduced for high-voltage electrical integrated system can be miniaturized, lightweight.
Description
Technical Field
The utility model relates to an electric automobile technical field specifically provides an electric automobile and high-voltage electrical integrated system thereof.
Background
With the development of electric vehicles, in order to improve the endurance mileage, power performance and other indexes of the electric vehicles, high-voltage electrical integrated systems of the electric vehicles have become the main development direction of the entire vehicles.
The high-voltage electric integrated system of the electric automobile comprises a high-voltage battery, a high-voltage power supply distribution unit, an electric driver, power electronics and a charging component. The high-voltage battery is the energy source of the whole high-voltage electric integrated system and can provide energy for electric driving and power electronic components through the power distribution unit, the charging system comprises slow charging and fast charging, and the battery is provided with energy through the power distribution unit.
However, each high-voltage component is independently and dispersedly arranged, so that the volume is large, and the spatial arrangement is relatively difficult; the high-voltage connecting ports among the high-voltage connecting ports are excessive, and the required high-voltage wire is longer; the line loss is increased and the corresponding cost is also increased.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects, the utility model is provided to solve or at least partially solve the independent dispersed arrangement of each high-voltage component, the volume is large, and the spatial arrangement is relatively difficult; the high-voltage connecting ports among the high-voltage connecting ports are excessive, and the required high-voltage wire is longer; the electric automobile and the high-voltage electric integrated system thereof increase the technical problem of corresponding cost while increasing the line loss.
In a first aspect, the present invention provides a high voltage electrical integration system for an electric vehicle, comprising a first power integration device and a second power integration device;
the first power integration device comprises a first high-voltage distribution device and a voltage conversion device; the second power supply integrated equipment comprises a second high-voltage distribution device and a slow charging device;
the first high-voltage distribution device is connected with a high-voltage battery of the electric automobile, the voltage conversion device, the second high-voltage distribution device and a first high-voltage load of the electric automobile; the voltage conversion device is connected with a low-voltage battery of the electric automobile;
the second high-voltage distribution device is also connected with a direct-current charging interface of the electric automobile, the slow charging device and a second high-voltage load of the electric automobile; the slow charging device is also connected with an alternating current charging interface of the electric automobile;
in a direct-current quick charging mode, a charging pile charges the high-voltage battery through the direct-current charging interface, the second high-voltage distribution device and the first high-voltage distribution device;
in an alternating current slow charging mode, a charging pile charges the high-voltage battery through the alternating current charging interface, the slow charging device, the second high-voltage distribution device and the first high-voltage distribution device;
under whole car operating mode, high voltage battery via first high voltage distribution device to first high voltage load power supply, via first high voltage distribution device with second high voltage distribution device to the power supply of second high voltage load, and, via voltage conversion device to low voltage battery charges.
Further, in the high-voltage electrical integrated system of the electric vehicle, the alternating-current charging interface and the direct-current charging interface are integrally arranged at the tail of the electric vehicle;
the first power supply integrated equipment is arranged at the head of the electric automobile;
the second power supply integration equipment is arranged at the tail of the electric automobile.
Further, in the high-voltage electrical integrated system of an electric vehicle, the first high-voltage load includes a heater and an air conditioner compressor;
the first high-voltage distribution device comprises a first branch circuit connected with the heater and the air conditioner compressor; and a first protection device is arranged on the first branch.
Further, in the above-mentioned high-voltage electrical integrated system of an electric vehicle, the first high-voltage load further includes a first driving device;
the first high-voltage distribution device further comprises a second branch circuit connected with the first driving device; and a second protection device is arranged on the second branch.
Further, in the high-voltage electrical integrated system of the electric vehicle, the first high-voltage power distribution device further includes a third branch circuit connected to the voltage conversion device; and a third protection device is arranged on the third branch.
Further, in the above-mentioned high voltage electric integrated system of an electric vehicle, a fourth protection device is disposed between the voltage conversion device and the low voltage battery.
Further, in the high-voltage electrical integrated system of the electric vehicle, the second high-voltage power distribution device includes a fourth branch connected to the dc charging interface;
and a control switch for controlling the electric automobile to enter a direct-current quick charging mode is arranged on the fourth branch.
Further, in the high-voltage electrical integrated system of an electric vehicle, the second high-voltage load includes a second driving device;
the second high-voltage distribution device comprises a fifth branch circuit connected with the second driving device;
and fifth protection devices are arranged between the fourth branch circuit and the first high-voltage distribution device and between the fifth branch circuit and the first high-voltage distribution device.
Further, in the high-voltage electrical integrated system of the electric vehicle, the second high-voltage power distribution device further includes a sixth branch connected to the slow charging device;
and a sixth protection device is arranged on the sixth branch.
In a second aspect, the present invention provides a vehicle comprising a high voltage electrical integration system as described in any one of the above.
The utility model discloses above-mentioned one or more technical scheme has following one or more beneficial effect at least:
implement the technical scheme of the utility model among, through with the integrated setting of first high voltage distribution device and voltage conversion equipment to and, with second high voltage distribution device with fill the device integration setting slowly, effectively reduced high-voltage electrical integrated system's volume, pencil cost, make high-voltage electrical integrated system can miniaturize, lightweight.
Drawings
The disclosure of the present invention will become more readily understood with reference to the accompanying drawings. As is readily understood by those skilled in the art: these drawings are for illustrative purposes only and are not intended to constitute a limitation on the scope of the present invention. Moreover, in the drawings, like numerals are used to indicate like parts, and in which:
fig. 1 is a schematic main structural diagram of a high-voltage electrical integrated system of an electric vehicle according to an embodiment of the present invention.
Detailed Description
Some embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention.
In the description of the present invention, although the terms "first", "second", "third", etc. may be used in the present application to describe various information, the information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present application. 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.
Unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and encompass, for example, being fixedly connected, releasably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
It is to be understood that the term "a and/or B" denotes all possible combinations of a and B, such as a alone, B alone or a and B. The term "at least one A or B" or "at least one of A and B" means similar to "A and/or B" and may include only A, only B, or both A and B. The singular forms "a", "an" and "the" may include the plural forms as well.
The high-voltage electric integrated system of the electric automobile comprises a driving Motor Controller (MCU), a high-voltage Power Distribution Unit (PDU), a vehicle-mounted charger (OBC), a DC/DC converter, an electric air conditioner compressor, an air conditioner electric heating PTC and the like. However, each high-voltage component is independently and dispersedly arranged, so that the volume is large, and the spatial arrangement is relatively difficult; the high-voltage connecting ports among the high-voltage connecting ports are excessive, and the required high-voltage wire is longer; the line loss is increased and the corresponding cost is also increased.
Therefore, the reasonable high-voltage component scheme and the integrated design can optimize the quantity of the leads, the relays, the fusible links and the connectors of the whole high-voltage electrical integrated system. In addition, the whole high-voltage electrical integrated system needs to meet high-voltage safety requirements, has the functions of high-voltage interlocking, active and passive discharge, insulation monitoring, pre-charging, relay monitoring, line protection and the like, and can meet the safety requirements and realize the optimal cost through reasonable design.
In order to solve and realize reasonable high-pressure part scheme and integrated design, the utility model provides a following technical scheme:
referring to fig. 1, fig. 1 is a schematic structural diagram of a high-voltage electrical integrated system of an electric vehicle according to an embodiment of the present invention. As shown in fig. 1, the high-voltage electrical integrated system of an electric vehicle in the embodiment of the present invention may include a first power integrated device 10 and a second power integrated device 11. Wherein the first power integration apparatus 10 includes a first high voltage power distribution device 101 and a voltage conversion device 102; the second power integration 11 includes a second high voltage distribution device 111 and a slow charging device 112. The slow charging device 112 may be an electric vehicle communication control unit (EVCC) and an on-board charger (OBC).
As shown in fig. 1, the first high voltage power distribution device 101 is connected to the high voltage battery 2 of the electric vehicle, the voltage conversion device 102, the second high voltage power distribution device 111, and the first high voltage load 3 of the electric vehicle; the voltage conversion device 102 is connected to the low-voltage battery 4 of the electric vehicle. The second high-voltage power distribution device 111 is further connected with a direct-current charging interface J1 of the electric vehicle, the slow charging device 112 and a second high-voltage load 5 of the electric vehicle; the slow charging device 112 is further connected with an alternating current charging interface J2 of the electric vehicle.
In a specific implementation process, when the electric vehicle is charged in the dc fast charging mode, the charging pile may charge the high voltage battery 2 through the dc charging interface J1, the second high voltage distribution device 111, and the first high voltage distribution device 101.
In one embodiment, when the electric vehicle is charged in the ac slow charging mode, the charging pile may charge the high voltage battery 2 through the ac charging interface J2, the slow charging device 112, the second high voltage distribution device 111, and the first high voltage distribution device 101.
In a specific implementation process, when the electric vehicle operates in the entire vehicle operation mode, the high voltage battery 2 may be supplied with power from the first high voltage distribution device 101 to the first high voltage load 3, from the first high voltage distribution device 101 to the second high voltage load 5, and from the voltage conversion device 102 to the low voltage battery 4.
According to the high-voltage electrical integrated system of the electric automobile, the first high-voltage distribution device 101 and the voltage conversion device 102 are integrally arranged, and the second high-voltage distribution device 111 and the slow charging device 112 are integrally arranged, so that the volume and the wire harness cost of the high-voltage electrical integrated system are effectively reduced, and the high-voltage electrical integrated system can be miniaturized and lightened.
In a specific implementation process, the ac charging interface J2 and the dc charging interface J1 may be integrated in a CCS2 charging dock and disposed at a tail of the electric vehicle, so that the first power integration device 10 may be disposed at a head of the electric vehicle; the second power integration 11 is provided at the rear of the electric vehicle, thereby reducing the cost of a charging harness.
In one implementation, as shown in fig. 1, the first high-pressure load 3 may include a heater 31 and an air conditioner compressor 32; the first high voltage distribution device 101 includes a first branch connected to the heater 31 and the air conditioner compressor 32; and a first protection device F1 is arranged on the first branch so as to ensure the safety and effectiveness of a high-voltage electrical integrated system of the electric automobile. Here, the first protection device F1 may be a fuse, and the heater 31 may be a PTC heater.
In one specific implementation, as shown in fig. 1, the first high-voltage load 3 may further include a first driving device 33; the first high voltage power distribution device 101 further comprises a second branch connected to the first driving device 33; and a second protection device F2 is arranged on the second branch to ensure the safety and effectiveness of the high-voltage electric integrated system of the electric automobile. The second protection device F2 may also be a fuse.
In one implementation, as shown in fig. 1, the first high voltage distribution device 101 further includes a third branch circuit connected to the voltage converting device 102; and a third protection device F3 is arranged on the third branch to ensure the safety and effectiveness of the high-voltage electrical integrated system of the electric automobile. The third protection device F3 may also be a fuse.
In a specific implementation process, as shown in fig. 1, a fourth protection device F4 is disposed between the voltage conversion device 102 and the low-voltage battery 4 to ensure the safety and the effectiveness of the high-voltage electrical integrated system of the electric vehicle. The fourth protection device F4 may also be a fuse.
In one implementation, as shown in fig. 1, the second high-voltage power distribution device 111 includes a fourth branch connected to the dc charging interface J1; and a control switch K for controlling the electric automobile to enter a direct-current quick charging mode is arranged on the fourth branch. Wherein the control switch K may include a main positive relay and a main negative relay.
In one specific implementation, as shown in fig. 1, the second high-voltage load 5 includes a second driving device 51; the second high voltage distribution device 111 comprises a fifth branch connected to the second driving device 51; and a fifth protection device F5 is arranged between the fourth branch and the fifth branch and the first high-voltage distribution device 101 so as to ensure the safety and effectiveness of a high-voltage electrical integrated system of the electric automobile. The fifth protection device F5 may also be a fuse.
It should be noted that, in this embodiment, it is described by taking the example that the fourth branch and the fifth branch share the same fifth protection device F5, in practical applications, the fourth branch and the fifth branch may not share the same fifth protection device F5, and this embodiment is not limited specifically.
In one specific implementation, as shown in fig. 1, the second high voltage distribution device 111 further includes a sixth branch connected to the slow charging device 112; and a sixth protection device F6 is arranged on the sixth branch to ensure the safety and effectiveness of the high-voltage electrical integrated system of the electric automobile. The sixth protection device F6 may also be a fuse.
The specific working process of the high-voltage electric integrated system of the electric automobile of the embodiment is as follows:
under the direct current mode of filling soon, main positive relay and main negative relay actuation, the stake high voltage electricity that charges to high voltage battery 2 through direct current interface J1, main positive relay, main negative relay, fifth protection device F5, the main branch road of first high voltage distribution device 101 in the CCS2 charging seat.
In the ac slow charging mode, the charging pile high voltage power charges the high voltage battery 2 through the ac charging interface J2, the OBC, the sixth protection device F6, and the main branch of the first high voltage power distribution device 101 in the CCS2 charging dock.
The following power supply situations can be divided in the whole vehicle running mode:
1. the high-voltage battery 2 supplies power to the heater 31 and the air conditioner compressor 32 through a first branch of the first high-voltage power distribution device 101 and the first protection device F1;
2. the high-voltage battery 2 supplies power to the voltage conversion device 102 through the third branch of the first high-voltage distribution device 101 and the third protection device F3, and the voltage conversion device 102 converts high-voltage direct current into 12V low-voltage direct current and charges the low-voltage battery 4 through the fourth protection device F4.
3. The high-voltage battery 2 provides high-voltage direct current input for the first driving device 33 through a second branch of the first high-voltage power distribution device 101 and the second protection device F2, so that the first motor controller MCU331 in the first driving device 33 converts high-voltage direct current into three-phase alternating current to be input to the first motor 332, so as to drive the first motor 332 to operate, and the whole vehicle obtains power; the fifth branch of the second high-voltage power distribution device 111 and the fifth protection device F5 provide a high-voltage dc input to the second driving device 51, so that the second motor controller MCU511 in the second driving device 51 converts the high-voltage dc into a three-phase ac and inputs the three-phase ac to the second motor 512, thereby driving the second motor 512 to operate, and obtaining power from the whole vehicle.
Further, the invention also provides an electric automobile which can comprise the high-voltage electric integrated system of the embodiment.
It will be appreciated by those skilled in the art that the various modules in the high voltage electrical integrated system may be adaptively split or combined. This kind of split or the combination to specific module can not lead to technical scheme skew the utility model discloses a principle, consequently, technical scheme after split or the combination will all fall into the utility model discloses an in the protection scope.
So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions can be made on the related technical features by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions will fall into the protection scope of the invention.
Claims (10)
1. The high-voltage electric integrated system of the electric automobile is characterized by comprising a first power supply integrated device and a second power supply integrated device;
the first power integration device comprises a first high-voltage distribution device and a voltage conversion device; the second power integration equipment comprises a second high-voltage power distribution device and a slow charging device;
the first high-voltage distribution device is connected with a high-voltage battery of the electric automobile, the voltage conversion device, the second high-voltage distribution device and a first high-voltage load of the electric automobile; the voltage conversion device is connected with a low-voltage battery of the electric automobile;
the second high-voltage distribution device is also connected with a direct-current charging interface of the electric automobile, the slow charging device and a second high-voltage load of the electric automobile; the slow charging device is also connected with an alternating current charging interface of the electric automobile;
in a direct-current quick charging mode, a charging pile charges the high-voltage battery through the direct-current charging interface, the second high-voltage distribution device and the first high-voltage distribution device;
in an alternating current slow charging mode, a charging pile charges the high-voltage battery through the alternating current charging interface, the slow charging device, the second high-voltage distribution device and the first high-voltage distribution device;
under whole car operating mode, high voltage battery via first high voltage distribution device to first high voltage load power supply, via first high voltage distribution device with second high voltage distribution device to the power supply of second high voltage load, and, via voltage conversion device to low voltage battery charges.
2. The high-voltage electrical integration system of the electric automobile of claim 1, wherein the alternating-current charging interface and the direct-current charging interface are integrally arranged at the tail of the electric automobile;
the first power supply integration equipment is arranged at the head of the electric automobile;
the second power supply integrated equipment is arranged at the tail part of the electric automobile.
3. The high-voltage electrical integration system of an electric vehicle according to claim 1, wherein the first high-voltage load includes a heater and an air conditioner compressor;
the first high-voltage distribution device comprises a first branch circuit connected with the heater and the air conditioner compressor; and a first protection device is arranged on the first branch.
4. The high-voltage electrical integration system of an electric vehicle according to claim 1, wherein the first high-voltage load further comprises a first driving device;
the first high-voltage distribution device further comprises a second branch circuit connected with the first driving device; and a second protection device is arranged on the second branch.
5. The high voltage electrical integration system of an electric vehicle of claim 1, wherein the first high voltage distribution device further comprises a third branch connected to the voltage conversion device; and a third protection device is arranged on the third branch.
6. The high-voltage electrical integration system of an electric vehicle according to claim 1, wherein a fourth protection device is provided between the voltage conversion device and the low-voltage battery.
7. The high-voltage electrical integration system of an electric vehicle of claim 1, wherein the second high-voltage power distribution device comprises a fourth branch connected to the dc charging interface;
and a control switch for controlling the electric automobile to enter a direct-current quick charging mode is arranged on the fourth branch.
8. The high-voltage electrical integration system of an electric vehicle according to claim 7, wherein the second high-voltage load includes a second driving device;
the second high-voltage distribution device comprises a fifth branch circuit connected with the second driving device;
and fifth protection devices are arranged between the fourth branch circuit and the first high-voltage distribution device and between the fifth branch circuit and the first high-voltage distribution device.
9. The high-voltage electrical integration system of an electric vehicle of claim 1, wherein the second high-voltage distribution device further comprises a sixth branch connected to the slow charging device;
and a sixth protection device is arranged on the sixth branch.
10. An electric vehicle comprising the high-voltage electrical integration system of any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222298202.1U CN218085085U (en) | 2022-08-30 | 2022-08-30 | Electric automobile and high-voltage electric integrated system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222298202.1U CN218085085U (en) | 2022-08-30 | 2022-08-30 | Electric automobile and high-voltage electric integrated system thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218085085U true CN218085085U (en) | 2022-12-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222298202.1U Active CN218085085U (en) | 2022-08-30 | 2022-08-30 | Electric automobile and high-voltage electric integrated system thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218085085U (en) |
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2022
- 2022-08-30 CN CN202222298202.1U patent/CN218085085U/en active Active
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