CN217455689U - High-voltage power distribution device and electric automobile - Google Patents
High-voltage power distribution device and electric automobile Download PDFInfo
- Publication number
- CN217455689U CN217455689U CN202220882186.8U CN202220882186U CN217455689U CN 217455689 U CN217455689 U CN 217455689U CN 202220882186 U CN202220882186 U CN 202220882186U CN 217455689 U CN217455689 U CN 217455689U
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- interface
- high voltage
- power distribution
- protection circuit
- voltage power
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- 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 6
- 102100031786 Adiponectin Human genes 0.000 abstract description 6
- 101000775469 Homo sapiens Adiponectin Proteins 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 125000003003 spiro group Chemical group 0.000 description 2
- 238000003745 diagnosis Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance 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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- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The utility model provides a high voltage distribution device and electric automobile, this high voltage distribution device includes: the device comprises a box body, a mains supply interface, a high-voltage wiring harness interface and a motor control wiring harness interface, wherein the mains supply interface, the high-voltage wiring harness interface and the motor control wiring harness interface are arranged on the surface of the box body; an overcurrent protection circuit is arranged in the box body and comprises an alternating current fuse connected with a mains supply interface; and the direct current fuse is connected with high-voltage electric equipment in the vehicle. The utility model provides a high-voltage distribution device, when having realized that the motor does not have resistance partial pressure loss consumption when normal work, avoided the problem that the motor is harmed to the spike voltage that produces when the motor circular telegram; and the ACDC charger is protected during charging, and a power battery, a DCDC charger and a motor controller in the electric vehicle are protected.
Description
Technical Field
The utility model relates to a new energy vehicle technical field, in particular to high voltage distribution device and electric automobile.
Background
With the development of technology, the automobile industry also moves towards diversification, and the market share of new energy automobiles is increased day by day compared with the market share of the past, wherein electric automobiles occupy one of the most important products in the field of new energy automobiles, and are gradually the target of the vigorous development of the new energy automobile industry in China due to the excellent use economy of the electric automobiles.
The current ratio of electric equipment (such as a motor controller, a motor, an air conditioner, a DC/DC charger and an AC/DC charger) in the mainstream electric automobile in the market during working is larger, and meanwhile, the motor on the electric automobile has peak voltage at the starting moment, and the peak voltage is far larger than the voltage during normal working. The overvoltage and overcurrent phenomena are generated inside the automobile, the working environment of the automobile is unstable, circuit faults are easy to occur under special working conditions (such as overload, vibration and high temperature), the automobile is damaged, and fire disasters and the like can be caused to affect the safety of personnel in the automobile in serious conditions.
SUMMERY OF THE UTILITY MODEL
Based on this, the present invention is directed to a high voltage power distribution device to at least partially solve the problems of the prior art.
The utility model provides a high-voltage distribution device, concrete technical scheme is as follows:
including the box body and locate commercial power interface, high-voltage wire harness interface, the motor control wiring harness interface on box body surface, its characterized in that, be equipped with pre-charge circuit in the box body, wherein, pre-charge circuit includes partial pressure protection circuit and direct circuit, partial pressure protection circuit is including the first contactor and the resistance of establishing ties, first contactor with the incoming end of motor control wiring harness interface is connected, resistance with the motor control wiring harness interface connect the output and connect, direct circuit is including connecting the second contactor of incoming end and output of motor control wiring harness interface.
The utility model provides a high voltage distribution device, when the switch-on, car controller goes up the electricity for the coil of first contactor, and the contact of first contactor is closed, and electrical equipment gets electric through resistance, and wherein, resistance plays the partial pressure effect. After a period of time is delayed, the automobile controller powers off the coil of the first contactor, simultaneously powers on the coil of the second contactor, simultaneously disconnects the contact of the first contactor, connects the contact of the second contactor, and directly obtains power from the power supply. The beneficial effects are as follows: through adopting above-mentioned mode to realize the motor through resistance partial pressure when starting, reduced the voltage on the motor when starting, the motor is direct when normal work connect the power, does not have the resistance loss of partial pressure, when having realized that the motor does not have resistance partial pressure loss consumption when normal work, has avoided producing peak voltage when the motor circular telegram and has harmd the motor.
Further, be equipped with overcurrent protection circuit in the box body, overcurrent protection circuit include with the ac fuse that the incoming end of commercial power interface is connected.
Furthermore, a charging protection circuit is arranged in the box body and comprises a first direct current fuse connected with the input end of the high-voltage wire harness interface.
Further, be equipped with overcurrent protection circuit in the box body, overcurrent protection circuit includes the normally closed switch, third contactor and the second direct current fuse of establishing ties, normally closed switch with the input of high-voltage wire harness interface is connected.
Furthermore, the second direct current fuse is connected with three third direct current fuses arranged in parallel, the three third direct current fuses are connected with electrical equipment at the output end of the high-voltage wire harness interface, and the electrical equipment comprises a DCDC charger, a motor controller and an air conditioner brake.
Furthermore, the high-voltage power distribution device is provided with a control line interface, and the control line interface is used for transmitting a control signal of the automobile controller.
Further, the box body includes the casing and with the fixed top cap of casing, the casing with the top cap spiro union is fixed, the pilot hole of installation pencil interface is left to the casing.
Furthermore, a fixing frame extends outwards from the bottom of the shell, and fixing holes are formed in the fixing frame.
The utility model also provides an electric automobile, electric automobile is last to be equipped with such as above-mentioned high-voltage distribution device.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
Fig. 1 is a circuit diagram of a high voltage power distribution apparatus according to an embodiment of the present invention.
Fig. 2 is a schematic structural view of the high voltage power distribution device of fig. 1.
Description of the main element symbols:
| |
1 | |
2 |
| |
3 | |
4 |
| Control line interface | 5 | |
6 |
| High-voltage wire harness interface | 7 | Motor control |
8 |
| First contactor | KM2 | Resistance (RC) | R |
| Second contactor | KM3 | Normally closed switch | K1 |
| Third contactor | KM1 | AC fuse | F1 |
| First direct current fuse | F2 | Second direct current fuse | F3 |
| Third direct current fuse | F4 |
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention can be embodied in many different forms other than those specifically described herein, and it will be apparent to those skilled in the art that similar modifications can be made without departing from the spirit and scope of the invention, and it is therefore not to be limited to the specific embodiments disclosed below.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical," "horizontal," "left," "right," "up," "down," and the like are for illustrative purposes only and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The features of the embodiments of the present invention, and the features of the embodiments and the embodiments, among the features of the embodiments and the embodiments, can be freely combined without any obvious conflict or contradiction.
Referring to fig. 1 to 2, a high voltage power distribution apparatus according to a first embodiment of the present invention is shown, and the high voltage power distribution apparatus specifically includes: the box body and locate box body surperficial commercial power interface 6, high-voltage wire harness interface 7, motor control pencil interface 8, be equipped with pre-charge circuit in the box body, wherein, pre-charge circuit includes partial pressure protection circuit and through circuit, partial pressure protection circuit includes first contactor KM2 and the resistance R of establishing ties, first contactor KM2 is connected with motor control pencil interface 8's incoming end, resistance R is connected with motor control pencil interface 8's the output that connects, through circuit is including connecting motor control pencil interface 8's incoming end and the second contactor KM3 that connects the output.
The utility model provides a high-voltage distribution device, when switching on, automobile controller is electrified for first contactor KM 2's coil, and first contactor KM 2's contact is closed, and electrical equipment obtains the electricity through resistance R, and wherein, resistance R plays the partial pressure effect. After a period of time is delayed, the automobile controller powers off the coil of the first contactor KM2, and simultaneously powers on the coil of the second contactor KM3, meanwhile, the contact of the first contactor KM2 is disconnected, the contact of the second contactor KM3 is connected, and the motor is directly powered on from a power supply. The beneficial effects are as follows: through adopting above-mentioned mode to realize the motor through resistance R partial pressure when starting, reduced the voltage on the motor when starting, the motor is direct power connection when normally working, does not have the resistance loss of partial pressure, when having realized that the motor does not have resistance partial pressure loss consumption when normally working, produces peak voltage harm motor when having avoided the motor circular telegram.
Further, for realize inputing overcurrent protection to the ACDC charger, the embodiment of the utility model provides an in, be equipped with the overcurrent protection circuit in the box body, the overcurrent protection circuit includes the ac fuse F1 of being connected with the incoming end of commercial power interface 6. The arranged current protection circuit enables 220V/50Hz alternating current coming from the mains supply to enter the high-voltage distribution device through the mains supply interface 6, the alternating current is processed through the alternating current fuse F1 and then is connected into the ACDC charger, and input overcurrent protection of the ACDC charger is realized.
Further, a charging protection circuit is arranged in the box body, and the charging protection circuit comprises a first direct current fuse F2 connected with the input end of the high-voltage wire harness interface 7. The 360V direct current output from the ACDC charger enters the high-voltage distribution device through the high-voltage wiring harness interface 7, and is output from the high-voltage wiring harness interface 7 through the first direct current fuse F2 to charge the power battery.
Further, an overcurrent protection circuit is arranged in the box body and comprises a normally closed switch K1, a third contactor KM1 and a second direct current fuse F3 which are connected in series, and the normally closed switch K1 is connected with the input end of the high-voltage wire harness interface 7. The second direct current fuse F3 is connected with three third direct current fuses F4 which are arranged in parallel, the third direct current fuse F4 is connected with the output end of the high-voltage wire harness interface 7 and is connected with electrical equipment through the output end of the high-voltage wire harness interface 7, the electrical equipment comprises a DCDC charger, a motor controller and an air-conditioning brake, and the third direct current fuse F4 is respectively connected with the DCDC charger, the motor controller and the air-conditioning brake. The embodiment of the utility model provides an in, normally closed switch K1 is as manual switch, but manual outage through normally closed switch K1. And a coil part of a normally open contact of the third contactor KM1 is tapped with the automobile controller, and the controller is used for controlling the power-off of the electric equipment.
Further, in order to realize the circuit control to among the high-voltage distribution device, the embodiment of the utility model provides an in, high-voltage distribution device is equipped with control line interface 5, and control line interface 5 is used for transmitting automobile controller's control signal to realize the switch of contactor KM1, KM2 among the control high-voltage distribution device, and then make precharge circuit realize that the contactor is opened and is closed by control signal effect interval time quantum, realize the motor protection purpose.
Referring to fig. 2, the box body includes a housing 3 and a top cover 1 fixed to the housing 3, the housing 3 is fixed to the top cover 1 by screw connection (4 mounting holes 2 are formed at corners of the top cover 1, and the mounting holes 2 are fixed by passing bolts through the mounting holes to fix the housing 3 and the top cover 1), and the housing 3 is provided with a mounting hole for mounting a wire harness connector. The mode of fixing is realized by matching the top cover 1 with the shell 3 in a threaded manner, so that the device is convenient to disassemble and assemble and is beneficial to subsequent diagnosis and maintenance.
Further, the bottom of casing 3 outwards extends mount 4, is equipped with the fixed orifices on mount 4, and is fixed through above-mentioned mount 4 and vehicle inner space spiro union, and the later stage dismouting of being convenient for is changed.
The utility model also provides an electric automobile, electric automobile is last to be equipped with such as above-mentioned high-voltage distribution device. The high-voltage power distribution device is assembled on the electric automobile to achieve the purposes of motor charging protection, input overcurrent protection of the ACDC charger, charging protection of the power battery and overcurrent protection of the automobile DCDC charger, the motor controller and the air conditioner controller.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (9)
1. The utility model provides a high-voltage distribution device, includes the box body and locates commercial power interface, high-voltage wire harness interface, the motor control pencil interface on box body surface, its characterized in that, be equipped with pre-charge circuit in the box body, wherein, pre-charge circuit includes partial pressure protection circuit and through circuit, partial pressure protection circuit is including the first contactor and the resistance of series connection, first contactor with the incoming end of motor control pencil interface is connected, resistance with the motor control pencil interface connect the output, through circuit is including connecting the second contactor of incoming end and output of motor control pencil interface.
2. The high voltage power distribution apparatus of claim 1, wherein an over-current protection circuit is disposed within the box body, the over-current protection circuit comprising an ac fuse connected to an input of the utility power interface.
3. The high voltage power distribution device of claim 1, wherein a charge protection circuit is disposed within the box, the charge protection circuit including a first dc fuse connected to the input of the high voltage harness interface.
4. The high voltage power distribution apparatus of claim 1 wherein an over current protection circuit is provided in the box, the over current protection circuit comprising a normally closed switch, a third contactor and a second dc fuse connected in series, the normally closed switch being connected to the input of the high voltage harness interface.
5. The high voltage power distribution apparatus of claim 4, wherein the second dc fuse is connected to three third dc fuses arranged in parallel, and the three third dc fuses are connected to electrical devices at the output end of the high voltage harness interface, wherein the electrical devices include a DCDC charger, a motor controller, and an air conditioner brake.
6. The high voltage power distribution apparatus of claim 1, wherein the high voltage power distribution apparatus is provided with a control line interface for transmitting control signals of an automotive controller.
7. The high voltage power distribution apparatus of claim 1, wherein the box comprises a housing and a top cover fixed to the housing, the housing is fixed to the top cover by screwing, and the housing is provided with a mounting hole for mounting the wire harness connector.
8. The high voltage power distribution apparatus of claim 7, wherein the bottom of the housing extends outwardly beyond the mounting bracket, and the mounting bracket has mounting holes.
9. An electric vehicle, characterized in that it is equipped with a high voltage power distribution device according to any one of claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220882186.8U CN217455689U (en) | 2022-04-16 | 2022-04-16 | High-voltage power distribution device and electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220882186.8U CN217455689U (en) | 2022-04-16 | 2022-04-16 | High-voltage power distribution device and electric automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217455689U true CN217455689U (en) | 2022-09-20 |
Family
ID=83270039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220882186.8U Expired - Fee Related CN217455689U (en) | 2022-04-16 | 2022-04-16 | High-voltage power distribution device and electric automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217455689U (en) |
-
2022
- 2022-04-16 CN CN202220882186.8U patent/CN217455689U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220920 |