CN213056715U - Integrated power distribution controller for vehicle - Google Patents
Integrated power distribution controller for vehicle Download PDFInfo
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- CN213056715U CN213056715U CN202021422463.4U CN202021422463U CN213056715U CN 213056715 U CN213056715 U CN 213056715U CN 202021422463 U CN202021422463 U CN 202021422463U CN 213056715 U CN213056715 U CN 213056715U
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Abstract
The utility model relates to an integrated power distribution controller for a vehicle, which comprises a plurality of relays, a coil driving module, a voltage sampling module and a PCB (printed circuit board); the coil driving module comprises a plurality of voltage output ports; each voltage output port is coupled with a coil contact of one relay; each relay comprises an output sampling contact, an input contact and a current output port; each input contact is coupled with the anode of the vehicle-mounted battery, each output sampling contact is coupled with the cathode of the vehicle-mounted battery, and each current output port is coupled with the current input end of the vehicle-mounted electric equipment controlled by the relay to be switched on and off. The utility model adopts the structure of the PCB bearing components, highly integrates the power distribution scheme, and simplifies the wiring steps; the wiring error can be avoided, and the production efficiency is obviously improved; can realize the modularized design in order being suitable for different distribution schemes and motorcycle types through the specification of adjustment relay and fuse, improve compatibility by a wide margin, more do benefit to the industrial popularization.
Description
Technical Field
The utility model relates to an automobile-used distribution technical field specifically relates to automobile-used integrated distribution controller.
Background
Because the existing electric vehicles, especially commercial vehicles, have more high-voltage components, in order to reduce the cost of the box body and the wire harness and reduce the failure rate caused by the connector, the host factory usually adopts a power distribution integration scheme, i.e. the high-voltage components such as DCDC, defrosting, PTC heater, steering and braking are integrated in the motor controller.
The current mainstream power distribution integration scheme is a high-voltage distribution box, such as the chinese utility model disclosed in the publication No. CN201621091888, which discloses a structural design scheme of the high-voltage distribution box, and can realize the goal of integrating various high-voltage components in one distribution box; however, the power distribution box type integration scheme has the defects that: the difficulty of the internal layout of the motor controller is increased, specifically as follows:
1. a multi-path relay and a fuse are usually integrated in a high-voltage distribution box, and the low-voltage coil of the relay, the high-voltage fuse, the fuse to the relay, the relay to a pre-charging resistor and the output voltage of the relay need to be sampled for wiring, so that wiring is very complex and wiring harnesses are more when a plurality of groups of relays and fuses are arranged;
2. due to the fact that wiring is very complex and wiring harnesses are more, faults such as wrong connection and the like are prone to occurring, and production efficiency is affected;
3. the space waste is serious.
SUMMERY OF THE UTILITY MODEL
The utility model is directed to the above problem, provide automobile-used integrated distribution controller to the realization is walked the purpose that line scheme highly integrated and wiring step simplify.
In order to solve the above problem, the utility model provides a technical scheme does:
an integrated power distribution controller for a vehicle comprises a plurality of relays, a coil driving module, a voltage sampling module and a PCB, wherein the relays are used for controlling the on-off of current of vehicle electric equipment;
the coil driving module comprises a plurality of voltage output ports; each voltage output port is coupled with a coil contact of one relay respectively;
each relay also comprises an output sampling contact, an input contact and a current output port; each input contact is coupled with the positive electrode of the vehicle-mounted battery, each output sampling contact is coupled with the negative electrode of the vehicle-mounted battery, and each current output port is coupled with the current input end of the vehicle-mounted electric equipment controlled by the relay to be switched on and off.
Preferably, the relay comprises a main relay for controlling the current on-off of a main power supply loop of the vehicle driving motor controller and a pre-charging relay for controlling the current on-off of a pre-charging loop of the vehicle driving motor controller;
a current output port of the main relay is coupled with a current input port of a main circuit of the vehicle drive motor controller; the current output port of the pre-charge relay is coupled with the current input port of the charging loop of the vehicle drive motor controller.
Preferably, the relay comprises a charging relay for controlling the on-off of the current of the charging gun;
the current output port of the charging relay is coupled with the current input port of the charging gun.
Preferably, the relay comprises a defrosting relay for controlling the on-off of the current of the defrosting machine and a PTC relay for controlling the on-off of the current of the PTC;
the current output port of the defrosting relay is coupled with the current input port of the defrosting machine; the current output port of the PTC relay is coupled with the current input port of the charging circuit of the PTC.
Preferably, the voltage sampling module comprises a third voltage sampling port, a fourth voltage sampling port and a fifth voltage sampling port;
the third voltage sampling port is coupled with an output sampling contact of the charging relay; a fourth voltage sampling port is coupled with an output sampling contact of the defrost relay; a fifth voltage sampling port is coupled to the PTC relay output sampling contact.
Preferably, a power resistor for pre-charging a DC & DC capacitive load is connected in series between the input contact of the main relay and the positive electrode of the vehicle-mounted battery;
a diode for preventing a voltage signal at the rear end of the main relay from being connected to the pre-charging relay in series is connected between the output sampling contact of the main relay and the negative electrode of the vehicle-mounted battery;
the anode of the diode is coupled with the output sampling contact of the main relay; the cathode of the diode is coupled with the cathode of the vehicle-mounted battery.
Preferably, the voltage sampling module comprises a first voltage sampling port and a second voltage sampling port;
the first voltage sampling port is coupled with the cathode of the diode; the second voltage sampling port is coupled with the anode of the diode.
Preferably, a branch fuse is respectively connected in series between the negative electrode of the vehicle-mounted battery and the output sampling contact of the PTC relay, the output sampling contact of the defrosting relay, the output sampling contact of the charging relay, and the positive electrode of the vehicle-mounted battery.
Preferably, the integrated power distribution controller for the vehicle is installed directly below a vehicle service cover.
Compared with the prior art, the utility model, have following advantage:
1. because the structure that the PCB bears the components is adopted, the power distribution scheme is highly integrated, thereby simplifying the wiring step;
2. because the wiring step is simplified, the wiring error can be avoided, and the production efficiency can be obviously improved;
3. because can be through the specification of adjustment relay and fuse in order being suitable for different distribution scheme and motorcycle type to realized the modularized design, improved by a wide margin the utility model discloses a compatibility more does benefit to the industrial popularization.
Drawings
FIG. 1 is a schematic circuit diagram of an embodiment of the present invention;
fig. 2 is a schematic diagram of a plug-in terminal relay according to an embodiment of the present invention.
FIG. 3 is a schematic layout of an embodiment of the present invention;
FIG. 4 is a schematic diagram of a fuse used in an embodiment of the present invention;
the system comprises a coil driving module 1, a voltage sampling module 2, a main relay 3, a pre-charging relay 4, a charging relay 5, a defrosting relay 6, a PTC relay 7, a vehicle-mounted battery anode 8, a vehicle-mounted battery cathode 9, a first voltage sampling port 10, a second voltage sampling port 11, a third voltage sampling port 12, a fourth voltage sampling port 13, a fifth voltage sampling port 14, a power resistor 15, a diode 16, a branch circuit fuse 17 and a high-voltage wiring seat 18.
Detailed Description
The present invention will be further explained with reference to specific examples, which are to be understood as illustrative only and not as limiting the scope of the invention, and modifications to the various equivalent forms of the invention, which may occur to those skilled in the art upon reading the present invention, fall within the scope of the appended claims.
The utility model provides an automobile-used integrated distribution controller, contains a plurality of relays that are used for controlling the electric current break-make of vehicle consumer, is used for providing drive voltage for the relay coil drive module 1, is used for carrying out the voltage sampling module 2 of sampling to relay output voltage and is used for bearing relay, coil drive module 1 and voltage sampling module 2 PCB board.
As shown in fig. 1, the coil driving module 1 of the present embodiment includes a plurality of voltage output ports; each voltage output port is coupled with a coil contact of one relay respectively; the coil contact is a low-voltage interface; in this embodiment, the coil driving module 1 is implemented by a low voltage connector.
The coil contact also converts the collected high-voltage signals into low-voltage signals through the optocoupler, and then transmits the low-voltage signals to the assembly control unit through the coil driving module 1, so that electromagnetic interference generated by high-voltage electricity is avoided.
As shown in fig. 2, in the relay using the tab terminal in this embodiment, the high voltage output is directly led out using the standard terminal 6.3 × 0.8, which saves the space layout and cost of the wire holder. Each relay also comprises an output sampling contact, an input contact and a current output port; each input contact is coupled with the anode 8 of the vehicle-mounted battery, each output sampling contact is coupled with the cathode 9 of the vehicle-mounted battery, and each current output port is coupled with the current input end of the vehicle-mounted electric equipment controlled by the relay to be switched on and off.
In the embodiment, the vehicle electric equipment comprises a vehicle driving motor controller, a charging gun, a defrosting machine and a PTC; the vehicle drive motor controller includes a main power supply circuit and a pre-charge circuit.
Accordingly, the number of the relays in this embodiment is five, including a main relay 3 for controlling the on/off of the current of the main power supply loop of the vehicle driving motor controller, a pre-charging relay 4 for controlling the on/off of the current of the pre-charging loop of the vehicle driving motor controller, a charging relay 5 for controlling the on/off of the current of the charging gun, a defrosting relay 6 for controlling the on/off of the current of the defrosting machine, and a PTC relay 7 for controlling the on/off of the current of the PTC; wherein:
the current output port of the main relay 3 is coupled with the current input port of the main circuit of the vehicle drive motor controller; a power resistor 15 for pre-charging a DC & DC capacitive load is connected in series between an input contact of the main relay 3 and the positive electrode 8 of the vehicle-mounted battery; a diode 16 for preventing a voltage signal at the rear end of the main relay 3 from being connected to the pre-charging relay 4 is connected in series between an output sampling contact of the main relay 3 and the negative electrode 9 of the vehicle-mounted battery; the anode of the diode 16 is coupled to the output sampling contact of the main relay 3; the cathode of the diode 16 is coupled to the cathode 9 of the vehicle battery.
The current output port of the pre-charge relay 4 is coupled to the current input port of the charging circuit of the vehicle drive motor controller.
The current output port of the charging relay 5 is coupled to the current input port of the charging gun.
The current output port of the defrost relay 6 is coupled to the current input port of the defrost machine.
The current output port of the PTC relay 7 is coupled to the current input port of the charging circuit of the PTC.
A branch circuit fuse 17 is respectively connected in series between the negative electrode 9 of the vehicle-mounted battery and the output sampling contact of the PTC relay 7, the output sampling contact of the defrosting relay 6, the output sampling contact of the charging relay 5 and the positive electrode 8 of the vehicle-mounted battery.
The voltage sampling module 2 comprises a first voltage sampling port 10 and a second voltage sampling port 11; the first voltage sampling port 10 is coupled to the cathode of a diode 16; the second voltage sampling port 11 is coupled to the anode of a diode 16.
The voltage sampling module 2 comprises a third voltage sampling port 12, a fourth voltage sampling port 13 and a fifth voltage sampling port 14; the third voltage sampling port 12 is coupled with an output sampling contact of the charging relay 5; the fourth voltage sampling port 13 is coupled to the output sampling contact of the defrost relay 6; the fifth voltage sampling port 14 is coupled to the PTC relay 7 output sampling contact.
The voltage sampling module 2 samples the voltages of the front end and the rear end of each relay so as to judge whether the relays are broken or adhered; in addition, increased the diode on the pre-charge way, whether main relay or pre-charge relay damage is judged through gathering the voltage around the diode, be convenient for lock the fault point fast and maintain. In this embodiment, the determination method is as follows:
if the third voltage sampling port 12 has no voltage, it indicates that the charging relay 5 is stuck; if the fourth voltage sampling port 13 has no voltage, it indicates that the defrost relay 6 is stuck.
If the anode of the diode 16 has no voltage and the cathode has voltage, the pre-charging relay 4 is stuck; if the anode and the cathode of the diode 16 have voltage, the main relay 3 is stuck.
In addition, the coil current of each relay is sampled by a current sensor arranged on the coil contact of each relay and is transmitted to the vehicle-mounted MCU, and whether the open circuit or the short circuit occurs is judged.
In the embodiment, the integrated power distribution controller for the vehicle is arranged right below a vehicle maintenance cover, so that vulnerable parts such as a relay, a branch circuit fuse 17 and the like can be maintained and replaced conveniently.
The layout of this embodiment is shown in fig. 1: the positive pole 8 of the vehicle-mounted battery and the negative pole 9 of the vehicle-mounted battery enter the circuit board through the high-voltage wire holder 18, the negative pole is only used as a voltage sampling reference point, no large current is loaded, the negative pole is connected to four branch fuses 17 welded on the circuit board through copper wires on the circuit board, then the negative pole is connected to the high-voltage input end of each relay, namely the pin of the input contact, and finally the pin of the output sampling contact of each relay is led out. Meanwhile, the voltage sampling module 2 of the embodiment also collects voltages between the input contacts and the output sampling contacts of the relays, and the processed voltages are uniformly transmitted to the control unit of the corresponding vehicle electric equipment through the lower coil driving module 1; and after judging whether the power-on condition is met, sending a corresponding power-on/power-off control signal, transmitting the power-on/power-off control signal to a coil contact of the relay through the coil driving module 1, controlling the actuation/disconnection of the relay, and further completing the power distribution of the electric equipment of each vehicle. The shunt fuse 17 is implemented in this embodiment using a fuse as shown in fig. 4; the relay in this specific embodiment is: a main relay 3, a pre-charging relay 4, a charging relay 5, a defrosting relay 6 and a PTC relay 7; the input contact of the main relay 3 is connected in series with a power resistor 15 with the anode 8 of the vehicle-mounted battery through a high-voltage wire holder 18; the output sampling contact of the main relay 3 and the output sampling contact of the pre-charge relay 4 are prevented from being reversed by a diode 16. The relay in the embodiment adopts a macro-sending HFR80-40, and the fuse adopts an EVP10 series product of Baseman.
In the foregoing detailed description, various features are grouped together in a single embodiment for the purpose of streamlining the disclosure. This method of disclosure is not to be interpreted as reflecting an intention that the claimed embodiments of the subject matter require more features than are expressly recited in each claim. Rather, as the following claims reflect, the invention lies in less than all features of a single disclosed embodiment. Thus, the following claims are hereby expressly incorporated into the detailed description, with each claim standing on its own as a separate preferred embodiment of the invention.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. To those skilled in the art; various modifications to these embodiments will be readily apparent, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
What has been described above includes examples of one or more embodiments. It is, of course, not possible to describe every conceivable combination of components or methodologies for purposes of describing the aforementioned embodiments, but one of ordinary skill in the art may recognize that many further combinations and permutations of various embodiments are possible. Accordingly, the embodiments described herein are intended to embrace all such alterations, modifications and variations that fall within the scope of the appended claims. Furthermore, to the extent that the term "includes" is used in either the detailed description or the claims, such term is intended to be inclusive in a manner similar to the term "comprising" as "comprising" is interpreted when employed as a transitional word in a claim. Furthermore, any use of the term "or" in the specification of the claims is intended to mean a "non-exclusive or".
The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (9)
1. An automobile-used integrated distribution controller which characterized in that: the vehicle power supply comprises a plurality of relays for controlling on-off of current of vehicle electric equipment, a coil driving module (1) for providing driving voltage for the relays, a voltage sampling module (2) for sampling output voltage of the relays and a PCB (printed circuit board) for bearing the relays, the coil driving module (1) and the voltage sampling module (2);
the coil driving module (1) comprises a plurality of voltage output ports; each voltage output port is coupled with a coil contact of one relay respectively;
each relay also comprises an output sampling contact, an input contact and a current output port; each input contact is coupled with the anode (8) of the vehicle-mounted battery, each output sampling contact is coupled with the cathode (9) of the vehicle-mounted battery, and each current output port is coupled with the current input end of the vehicle-mounted electric equipment controlled by the relay to be switched on and off.
2. The integrated power distribution controller for a vehicle according to claim 1, wherein: the relay comprises a main relay (3) for controlling the on-off of the current of a main power supply loop of the vehicle driving motor controller and a pre-charging relay (4) for controlling the on-off of the current of a pre-charging loop of the vehicle driving motor controller;
a current output port of the main relay (3) is coupled with a current input port of a main loop of the vehicle drive motor controller; the current output port of the pre-charging relay (4) is coupled with the current input port of the charging loop of the vehicle driving motor controller.
3. The integrated power distribution controller for a vehicle of claim 2, wherein: the relay comprises a charging relay (5) for controlling the on-off of the current of the charging gun;
the current output port of the charging relay (5) is coupled with the current input port of the charging gun.
4. The integrated power distribution controller for a vehicle of claim 3, wherein: the relay comprises a defrosting relay (6) for controlling the on-off of the current of the defrosting machine and a PTC relay (7) for controlling the on-off of the PTC current;
the current output port of the defrosting relay (6) is coupled with the current input port of the defrosting machine; the current output port of the PTC relay (7) is coupled with the current input port of the charging circuit of the PTC.
5. The integrated power distribution controller for a vehicle of claim 4, wherein: the voltage sampling module (2) comprises a third voltage sampling port (12), a fourth voltage sampling port (13) and a fifth voltage sampling port (14);
the third voltage sampling port (12) is coupled with an output sampling contact of the charging relay (5); a fourth voltage sampling port (13) is coupled with an output sampling contact of the defrost relay (6); a fifth voltage sampling port (14) is coupled with the PTC relay (7) output sampling contact.
6. The integrated power distribution controller for a vehicle of claim 5, wherein: a power resistor (15) for pre-charging a DC & DC capacitive load is connected in series between an input contact of the main relay (3) and the positive electrode (8) of the vehicle-mounted battery;
a diode (16) for preventing a voltage signal at the rear end of the main relay (3) from being connected to the pre-charging relay (4) in series is connected between an output sampling contact of the main relay (3) and a negative electrode (9) of the vehicle-mounted battery;
the anode of the diode (16) is coupled with the output sampling contact of the main relay (3); the cathode of the diode (16) is coupled to the cathode (9) of the vehicle battery.
7. The integrated power distribution controller for a vehicle of claim 6, wherein: the voltage sampling module (2) comprises a first voltage sampling port (10) and a second voltage sampling port (11);
the first voltage sampling port (10) is coupled with the cathode of a diode (16); the second voltage sampling port (11) is coupled to the anode of a diode (16).
8. The integrated power distribution controller for a vehicle of claim 7, wherein: and a branch circuit fuse (17) is respectively connected in series between the negative electrode (9) of the vehicle-mounted battery and the output sampling contact of the PTC relay (7), the output sampling contact of the defrosting relay (6), the output sampling contact of the charging relay (5), the positive electrode (8) of the vehicle-mounted battery and the negative electrode of the diode (16).
9. The integrated power distribution controller for a vehicle of claim 8, wherein: the integrated power distribution controller for the vehicle is arranged right below a vehicle maintenance cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021422463.4U CN213056715U (en) | 2020-07-17 | 2020-07-17 | Integrated power distribution controller for vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021422463.4U CN213056715U (en) | 2020-07-17 | 2020-07-17 | Integrated power distribution controller for vehicle |
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| CN213056715U true CN213056715U (en) | 2021-04-27 |
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| CN202021422463.4U Active CN213056715U (en) | 2020-07-17 | 2020-07-17 | Integrated power distribution controller for vehicle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114347809A (en) * | 2021-12-20 | 2022-04-15 | 上海集度汽车有限公司 | Power distribution device and electric automobile |
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2020
- 2020-07-17 CN CN202021422463.4U patent/CN213056715U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114347809A (en) * | 2021-12-20 | 2022-04-15 | 上海集度汽车有限公司 | Power distribution device and electric automobile |
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