CN217198027U - High-voltage direct-current power supply distribution device for electric automobile - Google Patents
High-voltage direct-current power supply distribution device for electric automobile Download PDFInfo
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- CN217198027U CN217198027U CN202121453595.8U CN202121453595U CN217198027U CN 217198027 U CN217198027 U CN 217198027U CN 202121453595 U CN202121453595 U CN 202121453595U CN 217198027 U CN217198027 U CN 217198027U
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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
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- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
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Abstract
The utility model discloses an electric automobile high voltage direct current power distribution device, the device are used for connecting electric automobile's battery and each high-pressure consumer of electric automobile to distribute electric automobile's each high-pressure consumer with electric automobile battery's high voltage direct current electric energy, wherein, electric automobile high voltage direct current power distribution device includes: the high-voltage electric vehicle comprises a positive copper bar and a negative copper bar which are respectively connected with the positive electrode and the negative electrode of the electric vehicle battery, a pre-charging circuit which is connected between the positive copper bar and the negative copper bar in parallel and a power supply circuit which is used for corresponding to the high-voltage electric equipment. The device has the advantages of compact structure, convenient wiring, convenient daily maintenance of the device and the maintenance in emergency power-off under the condition of accidents, and in addition, even if a certain power supply circuit is damaged suddenly, the use of other power supply circuits is not influenced, so that the device can play a role in circuit grading protection on each high-voltage component, and the power supply safety is higher.
Description
Technical Field
The utility model belongs to the technical field of electric automobile power distribution device technique and specifically relates to an electric automobile high voltage direct current power distribution device is related to.
Background
With the continuous reduction of global petroleum energy and the continuous increase of energy-saving and environment-friendly strength, new energy automobiles are gradually becoming the first choice products for the long-term development of the automobile industry, and the high-voltage safety of electric automobiles is gradually becoming a very important link in the development process of electric automobiles.
In the prior art, the high-voltage components of the electric vehicle are often arranged independently and dispersedly, and each high-voltage component needs to be connected with a battery so as to perform energy transfer. The common high-voltage components of the electric automobile mainly comprise: the system comprises a motor controller MCU, a high-voltage direct-current power distribution unit PDU, a DC/DC direct-current converter, a vehicle-mounted charger OBC, an electric air conditioner compressor, an air conditioner electric heating PTC and the like.
However, in the prior art, the cables of the high-voltage control system are often complicated due to the independent and decentralized circuit connection scheme, so that not only is the cost of the cables required by the high-voltage control system high, but also the difficulty in arrangement, installation and maintenance of the wiring harness of the whole vehicle is greatly improved.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides an electric automobile high voltage direct current power distribution device, main aim at solve among the prior art high voltage control system's circuit connection mode with high costs and the big technical problem of the maintenance degree of difficulty.
In order to achieve the above object, the utility model provides an electric automobile high voltage direct current power distribution device, electric automobile high voltage direct current power distribution device is used for connecting electric automobile's battery and each high-pressure consumer of electric automobile to distribute electric automobile's each high-pressure consumer with electric automobile battery's high voltage direct current electric energy, wherein, electric automobile high voltage direct current power distribution device includes:
the high-voltage electric vehicle comprises a positive electrode copper bar and a negative electrode copper bar which are respectively connected with the positive electrode and the negative electrode of the electric vehicle battery, a pre-charging circuit and a power supply circuit, wherein the pre-charging circuit is connected between the positive electrode copper bar and the negative electrode copper bar and is connected in parallel with the positive electrode copper bar and the negative electrode copper bar, and the power supply circuit is used for corresponding to high-voltage electric equipment.
In an embodiment of the present invention, optionally, the pre-charging circuit is used for eliminating the impact current generated when the device is started, wherein the pre-charging circuit includes a pre-charging fuse, a pre-charging relay and a pre-charging diode which are sequentially connected in series with the positive copper bar, and a pre-charging resistor connected between a control terminal of the pre-charging relay and the pre-charging diode.
The utility model discloses an embodiment, optionally, supply circuit includes the machine power supply circuit that charges, and the machine power supply circuit that charges is used for providing high-voltage direct current electric energy for the machine that charges, and wherein, the machine power supply circuit that charges includes the machine positive terminal port, the machine negative terminal port that charges and the charging relay and the insurance of charging that establish ties in proper order with the machine positive terminal port that charges.
In an embodiment of the present invention, optionally, the power supply circuit includes a motor controller power supply circuit, the motor controller power supply circuit is used for providing high voltage dc power for the motor controller, wherein the motor controller power supply circuit includes a motor controller positive terminal port, a motor controller negative terminal port, and a motor controller relay and a motor controller fuse sequentially connected in series with the motor controller positive terminal port.
In an embodiment of the present invention, optionally, the power supply circuit includes a PTC power supply circuit, the PTC power supply circuit is used for providing high-voltage dc power for the heating controller, wherein the PTC power supply circuit includes a PTC positive terminal port, a PTC negative terminal port, and a PTC relay and a PTC fuse sequentially connected in series with the PTC positive terminal port, wherein one end of the PTC fuse not connected with the PTC relay is connected with the output end of the motor controller relay.
In an embodiment of the present invention, optionally, the power supply circuit includes a DC/DC power supply circuit, the DC/DC power supply circuit is used for providing high-voltage DC power for the DC converter, the DC/DC power supply circuit includes a DC/DC positive terminal and a DC/DC negative terminal, wherein the DC/DC positive terminal is connected to the output terminal of the pre-charging device, so that the DC/DC power supply circuit and the pre-charging circuit share a power supply line.
In an embodiment of the utility model, optionally, power supply circuit includes the COMP power supply circuit, and the COMP power supply circuit is used for providing high voltage direct current electric energy for air condition compressor, and the COMP power supply circuit includes COMP positive pole port and COMP negative pole port, and wherein, the COMP positive pole port links to each other with the output of PTC insurance to make COMP power supply circuit and a power supply line of PTC power supply circuit sharing.
In an embodiment of the present invention, optionally, the device further includes a control module, wherein a control signal line of the control module is connected to the pre-charging circuit and the power supply circuit respectively, and is used for controlling the pre-charging circuit and the power supply circuit to be turned on and off.
The utility model discloses an in one embodiment, optionally, the device still includes communication module, and communication module links to each other with control module for communicate with electric automobile's whole car control system.
In an embodiment of the present invention, optionally, the pre-charging circuit and the power supply circuit are disposed in a box, wherein the waterproof grade of the box is not lower than IP 67.
The utility model provides a pair of electric automobile high voltage direct current power distribution device, through the mode that adopts centralized power distribution parallelly connected back with a plurality of high voltage power supply circuit, integrated with in a power distribution device for each high voltage power supply circuit compact structure, wiring are convenient. In addition, because each high-voltage power supply circuit in the device adopts a parallel connection mode, the device can be conveniently maintained in daily life and in emergency power-off in unexpected situations, and in addition, even if a certain power supply circuit is suddenly damaged in the using process of the device, the use of other power supply circuits is not influenced, so that the device can play a role in circuit grading protection on each high-voltage component, and the power supply safety is higher.
The above description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented according to the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more obvious and understandable, the following detailed description of the present invention is given.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation on the invention. In the drawings:
fig. 1 shows a schematic circuit structure diagram of an electric vehicle high-voltage direct-current power distribution device provided by an embodiment of the present invention;
fig. 2 shows an external schematic structural diagram of an electric vehicle high-voltage direct-current power distribution device provided by an embodiment of the present invention;
fig. 3 shows an internal structural schematic diagram of an electric vehicle high-voltage direct-current power distribution device provided by an embodiment of the present invention;
the system comprises a DC/DC converter, an OBC (on-board battery charger), an MCU (microprogrammed control unit) and a COMP (compressor, wherein the DC/DC is a direct current converter, the OBC is a vehicle-mounted charger, the MCU is a motor controller, the PTC is a heating controller, and the COMP is an air conditioner compressor; 1. the system comprises a motor controller cathode inlet, a motor controller anode inlet, a motor controller cathode inlet, a motor controller and charger power harness inlet, a motor controller cathode inlet, a motor controller anode inlet, a motor controller and charger power harness inlet, a battery box, a battery 5, a battery cathode inlet, a communication interface, a battery anode inlet, a battery 8, a PTC (positive temperature coefficient) and DC/DC power supply inlet, a charging relay, a PTC fuse, 12, a cathode copper bar, 13, a connecting sheet, a motor controller relay, a motor controller fuse, a pre-charging relay, a pre-charging fuse, a motor controller fuse, a pre-charging fuse, a motor controller and a charger power harness inlet, a pre-charging fuse, a motor controller, a motor, a.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
To further illustrate the technical means and effects of the present invention adopted to achieve the intended purpose of the present invention, the following detailed description is given with reference to the accompanying drawings and preferred embodiments, in order to explain the detailed embodiments, structures, features and effects of the present invention. In the following description, different "one embodiment" or "an embodiment" refers to not necessarily the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
The following describes an electric vehicle high-voltage direct-current power distribution device according to some embodiments of the present invention with reference to fig. 1 to 3.
An embodiment of the utility model provides an electric automobile high voltage direct current power distribution device, this electric automobile high voltage direct current power distribution device can be used to connect electric automobile's battery and each high-pressure consumer of electric automobile to distribute electric automobile's each high-pressure consumer with electric automobile battery's high voltage direct current electric energy, wherein, this electric automobile high voltage direct current power distribution device includes: the high-voltage electric vehicle comprises a positive copper bar and a negative copper bar which are respectively connected with the positive electrode and the negative electrode of an electric vehicle battery, a pre-charging circuit and a power supply circuit, wherein the pre-charging circuit is connected between the positive copper bar and the negative copper bar and is connected in parallel with the positive copper bar and the negative copper bar, and the power supply circuit is used for corresponding to high-voltage electric equipment.
Specifically, fig. 1 shows a schematic circuit structure diagram of the high-voltage direct-current power distribution device for the electric vehicle according to the embodiment. As shown in fig. 1, the high-voltage direct-current power distribution device for the electric vehicle comprises an anode copper bar (total +), a cathode copper bar (total-), and a pre-charging circuit (pre-charging), a DC/DC power supply circuit (DC/DC), a charger power supply circuit (OBC), a motor controller power supply circuit (MCU), a PTC power supply circuit (PTC) and a COMP power supply Circuit (COMP) which are connected between the anode copper bar and the cathode copper bar in parallel. The high-voltage direct-current power distribution device of the electric automobile can sequentially transmit high-voltage direct-current electric energy of the electric automobile to the pre-charging circuit, the DC/DC power supply circuit, the charger power supply circuit, the motor controller power supply circuit, the PTC power supply circuit and the COMP power supply circuit through the anode copper bar and the cathode copper bar.
In the embodiment, the power supply circuits connected in parallel in the high-voltage direct-current power distribution device of the electric vehicle are independent from each other and can be relatively and intensively arranged in the same power distribution device, so that the practical requirements of compact structure, low cost and the like of the power distribution device are met, the maintenance of each power supply circuit is facilitated, and the stability of high-voltage power supply is improved. It should be noted that, each of the power supply circuits connected in parallel in the above power supply circuit may be newly added and reduced according to actual conditions, and the newly added and reduced power supply circuit may not be limited to the 6 power supply circuits listed in the present embodiment. In addition, each of the above listed power supply circuits may include devices such as a positive terminal, a negative terminal, a relay, and a fuse (fuse), and in order to further save the volume and cost of the device, a plurality of power supply circuits may share one set of power supply line, that is, share the same relay and/or the same fuse. In this embodiment, both the connection mode and the number of the power supply circuits of the high-voltage direct-current power distribution device of the electric vehicle can be adjusted according to actual conditions, the adjustment mode is very flexible, and this embodiment is not limited specifically here.
The embodiment of the utility model provides an electric automobile high voltage direct current power distribution device, through the mode that adopts centralized distribution parallelly connected back with a plurality of high voltage power supply circuit, integrated with in a power distribution device for each high voltage power supply circuit compact structure, wiring convenience. In addition, because each high-voltage power supply circuit in the device adopts a parallel connection mode, the device can be conveniently maintained in daily life and in emergency power-off in unexpected situations, and in addition, even if a certain power supply circuit is suddenly damaged in the using process of the device, the use of other power supply circuits is not influenced, so that the device can play a role in circuit grading protection on each high-voltage component, and the power supply safety is higher.
The utility model discloses an in the embodiment, be connected with the pre-charge circuit on electric automobile high voltage direct current power distribution device's the anodal copper bar, wherein, the pre-charge circuit can be used to eliminate the impulse current that the electric automobile high voltage direct current power distribution device produced when starting. As shown in fig. 1, the pre-charge circuit may include a pre-charge fuse F1, a pre-charge relay K1, and a pre-charge diode V1 connected in series with the positive copper bar (total +), and a pre-charge resistor (not shown) connected between the control terminal of the pre-charge relay K1 and the pre-charge diode V1. In this embodiment, the pre-charge resistor may be used to alleviate a rush current generated when the device is started, and to enable the device to start smoothly. In practical application, after the high-voltage direct-current power distribution device of the electric automobile is powered on, the pre-charging relay K1 can be controlled to be closed through a program, so that the whole device enters a pre-charging state for a period of time, and then other relays are controlled to be closed in sequence, and the whole device can be started stably. It is understood that the pre-charge circuit may also be implemented by other circuit manners, and the embodiment is not limited in detail herein.
The utility model discloses an embodiment, be connected with the charger power supply circuit between electric automobile high voltage direct current power distribution device's anodal copper bar and negative pole copper bar, wherein, the charger power supply circuit can be used to provide high voltage direct current electric energy for electric automobile's the charger. As shown in fig. 1, the charger power supply circuit may include a charger positive terminal (not shown), a charger negative terminal (not shown), and a charging relay K2 and a charging fuse F2 that are sequentially connected in series with the charger positive terminal, where the charging relay K2 may be used to control on/off of the charger power supply circuit, the charging fuse F2 may be used to protect safety of the charger power supply circuit under an impact current, and the charging fuse F2 may be specifically a fuse. In addition, the charger power supply circuit may further include other devices or be connected in other circuit connection manners, and this embodiment is not specifically limited herein. In practical applications, the charging relay K2 needs to be closed after a time after the pre-charging relay K1 is closed, so as to ensure the power supply safety of the whole device.
The utility model discloses an in the embodiment, be connected with the machine controller power supply circuit between electric automobile high voltage direct current power distribution device's anodal copper bar and negative pole copper bar, wherein, machine controller power supply circuit can be used to provide high voltage direct current electric energy for machine controller. As shown in fig. 1, the power supply circuit of the motor controller may include a positive port of the motor controller (not shown), a negative port of the motor controller (not shown), and a motor controller relay K3 and a motor controller fuse F3 connected in series with the positive port of the motor controller. The charging relay K3 can be used for controlling the on-off of a power supply circuit of the motor controller, the charging fuse F3 can be used for protecting the safety of the power supply circuit of the motor controller under the impact current, and the charging fuse F3 can be specifically a fuse. In addition, the power supply circuit of the motor controller may further include other devices or be connected in other circuit connection manners, which is not specifically limited herein. In practical applications, the motor controller relay K3 needs to be closed after a time after the pre-charge relay K1 is closed, so as to ensure the power supply safety of the whole device.
In an embodiment of the present invention, a PTC power supply circuit is connected between the positive copper bar and the negative copper bar of the electric vehicle high-voltage dc power distribution device, wherein the PTC power supply circuit can be used to provide high-voltage dc power for the heating controller. As shown in fig. 1, the PTC power supply circuit may include a PTC positive electrode port (not shown), a PTC negative electrode port (not shown), and a PTC relay K4 and a PTC fuse F4 connected in series with the PTC positive electrode port, wherein an end of the PTC fuse F4 not connected to the PTC relay K4 may be connected to an output terminal of the motor controller relay K3. In this embodiment, the PTC relay K4 may be used to control the switching of the PTC power supply circuit, the PTC fuse F4 may be used to protect the safety of the PTC power supply circuit under a surge current, and the PTC fuse F4 may specifically be a fuse. In addition, the PTC power supply circuit may further include other devices or be connected by using other circuit connection methods, and this embodiment is not specifically limited herein. In practical applications, the PTC relay K4 needs to be closed after a time after the pre-charge relay K1 is closed, so as to ensure the power supply safety of the whole device. In addition, the PTC relay K4 also needs to be closed at the motor controller relay K3 to control the on/off of the PTC power supply circuit, and the reason for adopting this circuit design is that the independent starting of the PTC power supply circuit before the motor is not started may cause potential safety hazard, so that, for the safety of power supply, the control device of the PTC power supply circuit can be connected in series in the power supply line of the motor controller, thereby improving the safety of the whole device. In other embodiments, the PTC power supply circuit may also be designed separately from the power supply circuit of the motor controller, and this embodiment will not be described in detail herein.
The utility model discloses an in the embodiment, be connected with DC/DC power supply circuit between electric automobile high voltage direct current power distribution device's anodal copper bar and negative pole copper bar, wherein, DC/DC power supply circuit can be used to provide high voltage direct current electric energy for direct current converter. As shown in fig. 1, the DC/DC power supply circuit may include a DC/DC positive port (not shown) and a DC/DC negative port (not shown), wherein the DC/DC positive port may be connected to the output terminal of the pre-charge F1, so that the DC/DC power supply circuit and the pre-charge circuit may share a power supply line. In this way, the volume and cost of the high voltage direct current power distribution apparatus can be further reduced. Currently, in other embodiments, the DC/DC power supply circuit may also be designed separately from the pre-charging circuit, specifically, the DC/DC power supply circuit may include a separate DC/DC relay and a DC/DC fuse, and may further include other devices or be connected by using other circuit connection methods, which is not limited in this embodiment.
The utility model discloses an embodiment, be connected with COMP supply circuit between electric automobile high voltage direct current power distribution device's anodal copper bar and the negative pole copper bar, wherein, COMP supply circuit can be used to provide high voltage direct current electric energy for air condition compressor. As shown in fig. 1, the COMP power supply circuit may include a COMP positive port (not shown) and a COMP negative port (not shown), wherein the COMP positive port may be connected to the output terminal of the PTC fuse F4, so that the COMP power supply circuit and the PTC power supply circuit may share a power supply line. In this way, the volume and cost of the high voltage direct current power distribution apparatus can be further reduced. Currently, in other embodiments, the COMP power supply circuit may also be designed independently from the PTC control circuit, specifically, the COMP power supply circuit may include an independent COMP relay and a COMP fuse, and may further include other devices or be connected by using other circuit connection methods, which is not specifically limited herein. In addition, for power supply safety, a control device of the COMP power supply circuit can be connected in series in a power supply line of the motor controller, so that the safety of the whole device is improved.
In an embodiment of the utility model, electric automobile high voltage direct current power distribution device still includes control module, wherein, this control module's control signal line can link to each other with pre-charge relay K1, charging relay K2, machine controller relay K3 and PTC relay K4's control end respectively for control pre-charge relay K1, charging relay K2, machine controller power supply relay K3 and the opening and shutting-off of PTC relay K4. In this embodiment, when other relays are further integrated in the distribution device of the high-voltage direct-current power supply of the electric vehicle, the control end of the distribution device can also be connected with the control signal line of the control module, so that the opening and closing of the relays can be automatically controlled through a program running in the controller.
The utility model discloses an in one embodiment, electric automobile high voltage direct current power distribution device still includes communication module, and wherein, communication module can link to each other with control module for communicate with electric automobile's whole car control system. In this embodiment, the communication module may upload information such as control information and fault information in the electric vehicle high-voltage direct-current power distribution device to a vehicle control system of the electric vehicle at any time, or may receive a control instruction issued by the vehicle control system of the electric vehicle at any time.
In an embodiment of the present invention, as shown in fig. 2 and fig. 3, the power supply circuits such as the pre-charging circuit, the DC/DC power supply circuit, the charger power supply circuit, the motor controller power supply circuit, the PTC power supply circuit, and the COMP power supply circuit can be sequentially disposed in a box, and are connected to each high voltage power supply device through the external interface of the box, so that the size and cost of the device can be further reduced. In the embodiment, in order to guarantee the safety of the high-voltage direct-current power distribution device of the electric automobile, the waterproof grade of the box body cannot be lower than that of IP 67.
Further, as a refinement of the above embodiments, the present embodiment further provides an electric vehicle high-voltage direct-current power distribution apparatus. As shown in fig. 1, the high-voltage direct-current power distribution device for the electric vehicle comprises an anode copper bar (total +), a cathode copper bar (total-), and a pre-charging circuit (pre-charging), a DC/DC power supply circuit (DC/DC), a charger power supply circuit (OBC), a motor controller power supply circuit (MCU), a PTC power supply circuit (PTC) and a COMP power supply Circuit (COMP) which are connected between the anode copper bar and the cathode copper bar in parallel. In this embodiment, each of the six power supply circuits may operate independently, and each power supply circuit includes at least one control relay and one fuse, and in addition, the six power supply circuits may share the same power supply line in a manner of sharing the fuse to reduce the cost and the volume of the device, or may form an interlock control of the power supply circuit in a manner of connecting a plurality of control relays in series to improve the safety of the whole device. Furthermore, the relays in each power supply circuit are controlled by a program running in the control module, and in the actual running process of the device, the control module can firstly control the closing of the pre-charging relay K1, and then sequentially control the closing of the charger relay K2, the motor controller relay K3 and the PTC relay K4 according to the sequence set by the program or an instruction sent by a user, so that the whole high-voltage direct-current power distribution device can be stably started and stably run.
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 concept of the present invention, several variations and modifications can be made, which all fall within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. The high-voltage direct-current power distribution device for the electric automobile is used for connecting a battery of the electric automobile and each high-voltage electric device of the electric automobile and distributing high-voltage direct-current electric energy of the battery of the electric automobile to each high-voltage electric device of the electric automobile, wherein the high-voltage direct-current power distribution device for the electric automobile comprises:
the high-voltage electric vehicle battery pre-charging circuit comprises a positive copper bar and a negative copper bar which are respectively connected with the positive electrode and the negative electrode of the electric vehicle battery, a pre-charging circuit and a power supply circuit, wherein the pre-charging circuit is connected between the positive copper bar and the negative copper bar in parallel, and the power supply circuit is used for corresponding to the high-voltage electric equipment.
2. The high-voltage direct-current power distribution device for the electric vehicle as claimed in claim 1, wherein the pre-charging circuit is used for eliminating an impulse current generated when the device is started, and the pre-charging circuit comprises a pre-charging fuse, a pre-charging relay and a pre-charging diode which are sequentially connected with the positive copper bar in series, and a pre-charging resistor connected between a control end of the pre-charging relay and the pre-charging diode.
3. The high-voltage direct-current power distribution device for the electric vehicle as claimed in claim 1, wherein the power supply circuit comprises a charger power supply circuit, the charger power supply circuit is used for supplying high-voltage direct-current electric energy to a charger, and the charger power supply circuit comprises a charger positive terminal, a charger negative terminal, and a charging relay and a charging fuse which are sequentially connected with the charger positive terminal in series.
4. The electric vehicle high-voltage direct current power distribution device according to claim 1, wherein the power supply circuit comprises a motor controller power supply circuit, the motor controller power supply circuit is used for supplying high-voltage direct current electric energy to a motor controller, and the motor controller power supply circuit comprises a motor controller positive terminal port, a motor controller negative terminal port, and a motor controller relay and a motor controller fuse which are sequentially connected in series with the motor controller positive terminal port.
5. The high-voltage direct-current power distribution device for the electric vehicle as claimed in claim 4, wherein the power supply circuit comprises a PTC power supply circuit, the PTC power supply circuit is used for supplying high-voltage direct-current electric energy to the heating controller, the PTC power supply circuit comprises a PTC positive electrode port, a PTC negative electrode port, a PTC relay and a PTC fuse, the PTC relay and the PTC fuse are sequentially connected in series with the PTC positive electrode port, and one end of the PTC fuse, which is not connected with the PTC relay, is connected with the output end of the motor controller relay.
6. The high-voltage direct-current power distribution device for the electric vehicle as claimed in claim 2, wherein the power supply circuit comprises a DC/DC power supply circuit, the DC/DC power supply circuit is configured to provide high-voltage direct-current power for the DC converter, the DC/DC power supply circuit comprises a DC/DC positive terminal and a DC/DC negative terminal, wherein the DC/DC positive terminal is connected to the output terminal of the pre-charge circuit, so that the DC/DC power supply circuit and the pre-charge circuit share a power supply line.
7. The high-voltage direct-current power distribution device for the electric automobile as claimed in claim 5, wherein the power supply circuit comprises a COMP power supply circuit, the COMP power supply circuit is used for supplying high-voltage direct-current electric energy to an air conditioner compressor, the COMP power supply circuit comprises a COMP positive electrode port and a COMP negative electrode port, the COMP positive electrode port is connected with the output end of the PTC fuse, and therefore the COMP power supply circuit and the PTC power supply circuit share one power supply line.
8. The high-voltage direct-current power distribution device for the electric vehicle as claimed in claim 1, further comprising a control module, wherein control signal lines of the control module are respectively connected to the pre-charge circuit and the power supply circuit and are used for controlling the pre-charge circuit and the power supply circuit to be turned on and off.
9. The high-voltage direct-current power distribution device for the electric automobile according to claim 8, further comprising a communication module, wherein the communication module is connected with the control module and used for communicating with a whole automobile control system of the electric automobile.
10. The high-voltage direct-current power distribution device for the electric automobile according to claim 1, wherein the pre-charging circuit and the power supply circuit are arranged in a box, wherein the waterproof grade of the box is not lower than IP 67.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121453595.8U CN217198027U (en) | 2021-06-28 | 2021-06-28 | High-voltage direct-current power supply distribution device for electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121453595.8U CN217198027U (en) | 2021-06-28 | 2021-06-28 | High-voltage direct-current power supply distribution device for electric automobile |
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| Publication Number | Publication Date |
|---|---|
| CN217198027U true CN217198027U (en) | 2022-08-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121453595.8U Active CN217198027U (en) | 2021-06-28 | 2021-06-28 | High-voltage direct-current power supply distribution device for electric automobile |
Country Status (1)
| Country | Link |
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| CN (1) | CN217198027U (en) |
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2021
- 2021-06-28 CN CN202121453595.8U patent/CN217198027U/en active Active
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