KR20220067472A - Power Distribution Unit for Electric Vehicles with built-in busbar distributed power sensing module - Google Patents

Abstract

The present invention relates to a power distribution device for an electric vehicle having a case (100), a fuse (200), a relay (300), and a busbar (400).

Description

Power Distribution Unit for Electric Vehicles with built-in busbar distributed power sensing module}

The present invention relates to an electric vehicle power distribution device having a built-in busbar distributed power detection module, and more particularly, it is possible to detect abnormal currents such as overcurrents to check whether self-diagnostic abnormalities are present, and to easily damage parts when a protection circuit is damaged. It relates to an electric vehicle power distribution device with a built-in busbar distributed power sensing module that can identify and prevent damage to a protection circuit in advance to build an electrical safety system.

In general, electric vehicles are vehicles that use electric energy rather than fossil fuels, and related technologies are rapidly developing in response to the recent depletion of fossil fuels and the development of eco-friendly vehicles. are made including

In particular, the electric vehicle power distribution unit is one of the most important parts as a circuit component for power distribution control due to the characteristics of electric vehicles. serves to supply That is, power applied to the components of the main power system for driving an electric vehicle can be controlled and efficiently distributed, and power distribution control such as a battery, a PCU (Power Control Unit), or a PTC (Positive Temperature Coefficient Heater) It includes a plurality of connection terminals electrically connected to the target components, and circuit components such as fuses and relays.

However, the conventional power distribution device could not check whether the protection circuits such as fuses and relays are damaged due to the flow of abnormal current such as overcurrent and self-diagnosis abnormalities such as loss of current values for input and output, and the protection circuit is damaged. There was a problem in that it was not easy to check the damaged part.

Republic of Korea Patent No. 10-2082721 (Registration Date 2020.02.24) Republic of Korea Patent No. 10-1949099 (Registration Date 2019.02.11)

The present invention has been devised to solve the problems of the prior art,

An object of the present invention is to detect a high current flowing in a bus bar connected to the front end of the rapid charging connectors for distributing high voltage/high current in a non-contact method and by installing a power detection module that checks abnormal current such as overcurrent, self-diagnosis abnormality Electric vehicle power distribution with a built-in busbar distributed power detection module that can check the system, easily identify the damaged part when the protection circuit is damaged, and can prevent damage to the protection circuit in advance to establish a control and electrical safety system. to provide the device.

In order to achieve the above object, the electric vehicle power distribution device having a bus bar distributed power sensing module built-in according to an embodiment of the present invention is provided in an accommodating space 110 in which circuit components for controlling power distribution can be accommodated. and a case 100 in which a plurality of connectors for electrical connection with power distribution control target components are installed; a fuse 200 installed in the case in a number corresponding to one-to-one with the power distribution control target components to protect each power distribution control target component from the influence of overcurrent; a relay 300 installed in the case in a number corresponding to one-to-one with the power distribution control target parts to control electrical signals of each control target part; and a bus bar (400) connecting the connector, the relay, and the fuse and distributing the flow of current so that a plurality of power distribution control target components can be charged; 100) The connectors installed in the receiving space 110 inside are a fast-charging connector 101 for distributing high voltage/high current, a PTC (Positive Temperature Coefficient Heater) heater connector 102, and an Air-Conditioner (air conditioning). ) connector (103), COMM connector (104), BAT(+,-) connector (105), EPT (Electric Vehicle Powertrain) (106), OBC: Electric Vehicle On Board Charger Connector (107), LDC ( A low voltage DC-DC converter) connector 108 is included, and among the connectors, the fast charging connector 101 , the BAT connector 105 and the EPT connector 106 are spaced apart so as not to be adjacent to each other inside the case 100 . together with a pair of (+,-) bus bars 400 electrically connected to each other, and the bus inside the case 100 adjacent to the fast charging connector 101 , the BAT connector 105 and the EPT connector 106 . Around the bar 400, the fast charging connector 101, the BAT connector ( 105) and the EPT connector 106, the power detection module 500, which independently checks whether there is an overcurrent or not, is spaced apart from each other so as not to be adjacent to each other inside the case 100, and at least among the power detection modules One is a housing 510 having a first through hole 511 through which the bus bar 400 passes and a first boss 512 protruding inward from the circumferential surface of the first through hole; , the burr that is fitted on the outside of the first boss 512 and passes through the inside A magnetic body 520 in which a magnetic field is generated from the sub 400 and an insertion groove 521 into which the sensor 530 is inserted is formed on the upper surface, and fitting grooves formed on both sides of the inside of the housing 510 above the magnetic body 520 ( 513) to stably support the sensor 530 inserted into the insertion groove 521 and stably disposed on the upper portion of the magnetic body 520, and parts for transmitting the signal sensed by the sensor to the outside are mounted. a circuit board 540 with an attached circuit board, a shielding rib 550 provided between the circuit board and the magnetic body and a hole 551 through which the sensor passes to shield the magnetic field, and the first through hole 511 A second through hole 561 through which the bus bar 400 passes through is formed, and a second boss 562 protrudes from the circumferential surface of the second through hole and is inserted into the first boss 512 . ) is provided and is configured to include a cover 560 coupled to the housing 510 , a connection terminal 542 connected to an external communication cable is mounted on the circuit board 540 , and the housing 510 has An exposed hole 514 through which the connection terminal is exposed is provided, and the connection terminal 542 is exposed to the outside through the exposure hole to be connected to the external communication cable, and the first boss 512 of the housing 510 is provided. ) The upper and lower engaging projections 512a are formed on the inner surface, and the engaging projection 512a of the first boss 512 is inserted and engaged in the outer surface of the second boss 562 of the cover 560. A 562a is formed so that when the second boss 562 of the cover 560 is inserted into the first boss 512 of the housing, the second boss is caught by the locking jaw 512a of the first boss. The first boss 512 and the second boss 562 are coupled to each other by engaging the groove 562a.

In addition, according to an embodiment, the power detection module 500 includes a first power detection module 501 installed at the front end of the fast charging connector 101 and a second power installed at the front end of the EPT connector 106 . A detection module 502 and a third power detection module 503 installed at the front end of the BAT connector 105, wherein the first power detection module 501, the second power detection module 502 and the third The power sensing module 503 is distributed to different sides inside the case 100 in order to minimize the influence of the mutual magnetic field, and then is exposed to the outside through the case.

In addition, according to an embodiment, the cover 560 is provided with a side correction rib 563 along the edge, and is drawn into the housing 510 when combined with the housing 510 to increase the side strength of the cover 560 . A fastening part 570 for coupling with the case 100 is provided at the lower end of the housing 510 .

In addition, according to an embodiment, the magnetic body 520 is formed by slitting an electrical steel sheet having a thickness of 0.23 mm to a width of 10 mm, winding it to a thickness of 5 mm, heat-treating it in a non-oxidizing atmosphere at 800 ° C. for 1 hour, and then molding is manufactured

In addition, according to an embodiment, the connection terminal 542 is electrically connected to the circuit board 540 and transmits a signal by the sensor 530 via an external communication cable and the case 100 to the outside of the case 100 . sent to the control unit.

Also, according to an embodiment, the external communication cable is an unshielded twisted pair cable (UTP), and the sensor 530 is a Hall sensor.

According to an embodiment of the present invention, it is installed in a contactless manner at the front end of a bus bar connected to a fast charging connector with a high current specification, a bus bar connected to an EPT connector, and a bus bar connected to a BAT connector to detect a high current flowing through the bus bar. And by checking abnormal currents such as overcurrent, self-diagnosis abnormalities can be checked, and when the protection circuit is damaged, the damaged part can be easily identified, and damage to the protection circuit can be prevented in advance.

In addition, it is possible to control in the VCU and BMS by checking for overcurrent, and it is possible to calculate the input/output loss rate by transmitting the current value for input/output to the VCU and BMS through CAN. It has the effect of establishing an electrical safety system by linking with electric field-related products.

In addition, the first power detection module installed at the front end of the fast charging connector, the second power detection module installed at the front end of the EPT connector, and the third power detection module installed at the front end of the BAT connector are installed on different sides of the case By distributing the arrangement in the power sensing module, the effect of the mutual magnetic field between the power sensing modules is minimized, thereby preventing a decrease in the sensitivity of the power sensing module for checking an abnormal current such as overcurrent, thereby improving the accuracy of the power sensing module.

1 is a perspective view illustrating an external shape of an electric vehicle power distribution device having a built-in bus bar distributed power sensing module according to an embodiment of the present invention;
2 is a plan view illustrating an internal configuration of an electric vehicle power distribution device having a built-in bus bar distributed power sensing module according to an embodiment of the present invention.
3 is a circuit diagram illustrating an internal configuration of an electric vehicle power distribution device having a built-in bus bar distributed power sensing module according to an embodiment of the present invention.
4 is a perspective view illustrating a power sensing module in an electric vehicle power distribution device having a built-in bus bar distributed power sensing module according to an embodiment of the present invention.
5 is an exploded perspective view illustrating a power sensing module in an electric vehicle power distribution device having a built-in bus bar distributed power sensing module according to an embodiment of the present invention;
FIG. 6 is a perspective view illustrating a state in which a magnetic material and a circuit board are combined in a housing in the power sensing module of FIG. 4, and only the cover is removed;
7 is a side cross-sectional view illustrating a state in which the power sensing module of FIG. 4 is coupled, and illustrating a coupling relationship between the first boss and the second boss;

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The following detailed description of the present invention is an embodiment in which the present invention may be practiced, and reference is made to the accompanying drawings shown by way of example for the embodiment. These embodiments are described in sufficient detail to enable those skilled in the art to practice the present invention. It should be understood that various embodiments of the present invention are different but need not be mutually exclusive. For example, certain shapes, structures, and characteristics described herein may be implemented in other embodiments without departing from the spirit and scope of the invention with respect to one embodiment. It should also be understood that the position or arrangement of individual components in each described embodiment may be changed without departing from the spirit and scope of the present invention.

Accordingly, the detailed description set forth below is not intended to be taken in a limiting sense, and the scope of the present invention, if properly described, is limited only by the appended claims, along with all scopes equivalent to those claimed by the claims. Like reference numerals in the drawings refer to the same or similar functions throughout the various aspects.

The terms used in the present invention have been selected as currently widely used general terms as possible while considering the functions in the present invention, but these may vary depending on the intention or precedent of a person skilled in the art, the emergence of new technology, and the like. In addition, in certain cases, there are also terms arbitrarily selected by the applicant, and in this case, the meaning will be described in detail in the description of the corresponding invention. Therefore, the term used in the present invention should be defined based on the meaning of the term and the overall content of the present invention, rather than the name of a simple term.

In the whole of the invention, when a part "includes" a certain element, it means that other elements may be further included, rather than excluding other elements, unless otherwise stated. Also, terms such as “…unit” and “…module” described in the specification mean a unit that processes at least one function or operation, which may be implemented as hardware or software, or a combination of hardware and software.

As shown in FIGS. 1 to 3 , the electric vehicle power distribution device with a built-in busbar distributed power sensing module according to an embodiment of the present invention is provided with a plurality of connectors for electrical connection with power distribution control target components. A fuse 200 , a relay 300 , a bus bar 400 , and a power sensing module 500 are accommodated in the case 100 .

First, as shown in FIG. 1 , the case 100 is made of an insulating material having excellent heat resistance and strength, and circuit components such as a fuse 200 , a relay 300 , and a bus bar 400 are accommodated therein. It has a space 110 and is configured to include a cover 120 that covers the accommodation space 110 .

In addition, a plurality of connectors for electrical connection with power distribution control target components are provided on the sidewall of the case 100 .

Connectors are fast charging (FAST-Charging) (101) connector, PTC (Positive Temperature Coefficient Heater) heater connector (102), Air-Conditioner (air conditioning) connector (103), COMM connector (104), BAT (+,-) connector 105 , EPT (electric vehicle power train) connector 1r06), OBC: an electric vehicle on-board charger 107 , and a low voltage DC-DC converter (LDC) connector 108 .

Here, the FAST-Charging connector 101 is a method of charging by supplying direct current (DC) power from the charger to the battery. There are differences, but in general, you can charge up to 80% in less than an hour. Depending on the vehicle model, DC combo and CHADEMO standards are used for general purpose.

The PTC (Positive Temperature Coefficient Heater) heater connector 102 is a system that operates heating through electric heat before the temperature of the vehicle coolant reaches a predetermined temperature.

The Air-Conditioner connector 103 is the main purpose of the vehicle air conditioning system to make the interior of the vehicle a comfortable space within a short time. This heat flow is artificially created by cooling below.

COMM connector 104 is a connector that controls relay for each part inside the PDU, HVIL (High Voltage Inter-Lock) for each connector, Case Cover Open detection check function, and communication (CAN) function operation.

The BAT (+,-) connector 105 is a high-voltage main battery charging/discharging connector.

The EPT (electric vehicle power train) connector 106 refers to a system required in the process of transmitting power produced by the power unit to the wheels. In this way, high-voltage power is applied to electric power systems such as inverters and motors constituting the power train through the EPT of the corresponding PDU of the electric vehicle.

The On Board Charger (OBC) connector 107 is a method in which the charger supplies alternating current (AC) power, and the OBC of the electric vehicle converts this power into direct current to charge the battery. It uses an AC single-phase 5-pin standard, has 7kW-class performance, and although it depends on the car's battery capacity, it usually takes about 1 hour to charge 10%.

The low voltage DC-DC converter (LDC) connector 108 is a converter system for converting a high voltage battery to a 12V low voltage battery. Most parts of a car (headlights, wipers, pumps, control boards, etc.) operate at 12V. In conventional cars with an engine, the engine acts as a generator to generate 12V, but PHEV or EV converts it from a high voltage battery to a low voltage.

As shown in FIG. 2 , the fuse 200 disposed in the accommodating space 110 of the case 100 is provided in a one-to-one corresponding number with the power distribution control target components, so that each power distribution control target is prevented from the effect of overcurrent. protect the parts.

And, like the fuse 200 , the relay 300 is provided in a number corresponding to each power distribution control target component one-to-one to selectively turn on/off the power distribution control target component.

The bus bar 400 connects the connectors 101 to 108, the relay 300, and the fuse 200, and distributes the flow of current so that a plurality of power distribution control target components can be charged.

The power sensing module 500 is installed at the front end of the connectors for rapid charging for distributing high voltage/high current among the connectors to sense the high current flowing through the bus bar 400 in a non-contact manner.

As shown in the circuit diagram of Figure 3, the connectors for fast charging include a fast charging connector 101 of a high current specification, an EPT connector 106, and a BAT connector 105, and the power sensing module 500 is a rapid A first power detection module 501 installed at the front end of the charging connector 101, a second power detection module 502 installed at the front end of the EPT connector 106, and a BAT connector 105 installed at the front end and a third power sensing module 503 .

And, as shown in FIGS. 4 to 7 , the power sensing modules 500 include a housing 510 , a magnetic material 520 , a sensor 530 , a circuit board 540 , and a cover 550 . is composed by

Here, the housing 510 has a first through hole 511 through which the bus bar 400 connected to the connectors for quick charging passes is formed on one surface, and the bus bar is formed on the circumferential surface of the first through hole 511 inside the housing. A first boss 512 protruding toward the penetrating direction of the bar 400 is provided.

In addition, the magnetic body 520 is fitted to the outside of the first boss 512 .

The magnetic body 520 is formed by slitting an electrical steel sheet having a thickness of 0.23 mm to a width of 10 mm, winding it to a thickness of 5 mm, heat-treating it in a non-oxidizing atmosphere at 800 ° C. for 1 hour, molding, and then forming a 3 mm void . In addition, an insertion groove 521 into which the sensor 530 is inserted is formed on the upper surface of the magnetic body 520 .

The magnetic material 520 is inserted on the outside of the first boss 512 to generate a magnetic field in the bus bar 400 passing through the inside of the first boss 512 .

In addition, a pair of fitting grooves 513 facing each other on both sides of the inner side of the housing 510 are formed in the upper portion of the magnetic body 520 , and both sides of the circuit board 540 are fitted in the fitting groove 513 to the magnetic body 520 . It is stably placed on the top.

The sensor 530 inserted into the insertion groove 521 of the magnetic body 520 is mounted on the bottom surface of the circuit board 540, and the connection terminal 542 connected to the external communication cable is mounted on the top surface. In addition, a component for amplifying a signal sensed by the sensor 530 may be mounted.

In addition, a shielding rib 550 for shielding a magnetic field is provided between the circuit board 540 and the magnetic body 520 . A hole 551 through which the sensor 530 mounted on the circuit board 540 passes is formed in the shielding rib 550 , and the sensor 530 passes through the hole 551 of the shielding rib 550 to pass through the magnetic body 520 . ) is located in the insertion groove 521 , and senses the magnetic field generated by the bus bar 400 by the magnetic material 520 . That is, the sensor 530 is mounted on the circuit board 540 and through the insertion groove 521 of the magnetic body 520 , the current flowing through the bus bar 400 in a contactless manner in which the sensor 530 is not in contact with the bus bar 400 . to detect

On the other hand, the housing 510 is provided with an exposure hole 514 through which the connection terminal 542 of the circuit board 540 is exposed to the outside, and the connection terminal 542 is exposed to the outside through the exposure hole 514 to the outside. connected to the communication cable.

The connection terminal 542 is electrically connected to the circuit board 540 so that a signal by the sensor 530 can be transmitted to a control unit (not shown) via an external communication cable. At this time. The external communication cable is preferably formed of an unshielded twisted pair cable (UTP), and the sensor 530 is preferably formed of a Hall sensor.

A second through hole 561 through which the bus bar 400 passing through the first through hole 511 of the housing 510 passes is formed in the cover 560 , and the circumferential surface of the second through hole 561 has the housing A second boss 562 inserted into the first boss 512 of the 510 is provided.

7, locking projections 512a are formed on the inner upper and lower surfaces of the first boss 512 of the housing 510, and the first boss 562 is formed on the outer surface of the second boss 562 of the cover 560. A locking groove 562a into which the locking jaw 512a of 512 is inserted is formed. That is, the second boss 562 of the cover 560 is inserted into the inside of the first boss 512 of the housing 510 , and the second boss 562 is inserted into the engaging protrusion 512a of the first boss 512 . As the locking groove 562a is engaged, the first boss 512 and the second boss 562 are coupled, and the housing 510 and the cover 560 are coupled together.

In addition to this, the cover 560 is provided with side correction ribs 563 along the edge to secure coupling force with the housing 510 . The side correction rib 563 is inserted into the housing 510 when combined with the housing 510 to reinforce the side strength of the cover 560 .

In addition, a fastening part 570 for coupling the power sensing module 500 to the case 100 is provided at the lower end of the housing 510 .

The power detection module 500 configured as described above includes a bus bar 400 connected to the fast charging connector 101, which is a high current specification, a bus bar 400 connected to the EPT connector 106, and a BAT connector 105. It is installed at the front end of the bus bar 400 that is connected to the non-contact method to detect a high current flowing through the bus bar 400 and check an abnormal current such as an overcurrent.

As described above, the present invention installs a power detection module that detects a high current flowing in a bus bar connected to the front end of the fast charging connectors for distributing high voltage/high current in a non-contact method and checks abnormal current such as overcurrent to determine whether self-diagnosis is abnormal can be checked, and when the protection circuit is damaged, the damaged part can be easily identified, and the damage to the protection circuit can be prevented in advance.

In addition, it is possible to control in the VCU and BMS by checking for overcurrent, and it is possible to calculate the input/output loss rate by transmitting the current value for input/output to the VCU and BMS through CAN. It is possible to establish an electrical safety system by linking with electrical equipment related products.

Although preferred embodiments of the present invention have been described above, the present invention is not limited to the specific embodiments described above. That is, a person of ordinary skill in the art to which the present invention pertains can make numerous changes and modifications to the present invention without departing from the spirit and scope of the appended claims, and all such appropriate changes and modifications are Equivalents are to be considered as falling within the scope of the present invention.

100: case 110: accommodation space
101: FAST-Charging connector 102: PTC heater connector
103: Air-Conditioner connector 104: COMM connector
105: BAT(+,-) connector 106: EPT connector
107: OBC connector 108: LDC connector
120: cover 200: fuse
300: relay 400: bus bar
500: power detection module 501: first power detection module
502: second power detection module 503: third power detection module
510: housing 511: first through hole
512: first boss 512a: jamming jaw
513: fitting groove 514: exposure hole
520: magnetic material 521: insertion groove
530: sensor 540: circuit board
542: connection terminal 550: shielding rib
551: hole 560: cover
561: second through hole 562: second boss
562a: catch groove 563: rib
570: fastening part

Claims (6)

a case 100 having an accommodating space 110 in which circuit components for power distribution control can be accommodated, and in which a plurality of connectors for electrical connection with power distribution control target components are installed; a fuse 200 installed in the case in a number corresponding to one-to-one with the power distribution control target components to protect each power distribution control target component from the influence of overcurrent; a relay 300 installed in the case in a number corresponding to one-to-one with the power distribution control target parts to control electrical signals of each control target part; and a bus bar (400) connecting the connector, the relay, and the fuse and distributing the flow of current so that a plurality of power distribution control target components can be charged;
The connectors installed in the receiving space 110 inside the case 100 are a fast charging (FAST-Charging) connector 101 for distributing high voltage/high current, a PTC (Positive Temperature Coefficient Heater) heater connector 102, Air- Conditioner Connector(103), COMM Connector(104), BAT(+,-) Connector(105), EPT(Electric Vehicle Powertrain)(106), OBC: Electric Vehicle On Board Charger Connector(107) , including a low voltage DC-DC converter (LDC) connector 108,
Among the connectors, the fast charging connector 101, the BAT connector 105, and the EPT connector 106 are spaced apart from each other so as not to be adjacent to each other inside the case 100, and are connected to a pair of (+,-) bus bars 400. electrically connected to each other by
The fast charging connector 101, the BAT connector 105 and the EPT connector are around the bus bar 400 inside the case 100 adjacent to the quick charging connector 101, the BAT connector 105 and the EPT connector 106. Power to independently check whether overcurrent flows in the fast charging connector 101, the BAT connector 105, and the EPT connector 106 by detecting the high current flowing through the bus bar through 106 in a non-contact method, respectively. The detection module 500 is spaced apart so as not to be adjacent to each other inside the case 100, and is distributed.
At least one of the power sensing module,
A housing 510 having a first through hole 511 through which the bus bar 400 passes and a first boss 512 protruding inwardly from a circumferential surface of the first through hole; 1 A magnetic body 520 fitted on the outside of the boss 512 to generate a magnetic field in the bus bar 400 passing through the inside and having an insertion groove 521 into which the sensor 530 is inserted, the magnetic body 520 , and the magnetic body 520 . ) is inserted into the fitting grooves 513 formed on both sides of the inner side of the housing 510 at the upper portion, is stably disposed on the upper portion of the magnetic body 520 and stably supports the sensor 530 inserted into the insertion groove 521, and A circuit board 540 on which components for transmitting a signal sensed by the sensor to the outside are mounted, and a hole 551 provided between the circuit board and the magnetic body and through which the sensor passes to shield the magnetic field A shielding rib 550 and a second through hole 561 through which the bus bar 400 passing through the first through hole 511 passes is formed and protrudes from a circumferential surface of the second through hole to allow the second through hole to pass through. A second boss 562 inserted into the first boss 512 is provided and configured to include a cover 560 coupled to the housing 510,
A connection terminal 542 connected to an external communication cable is mounted on the circuit board 540, and an exposed hole 514 through which the connection terminal is exposed is provided in the housing 510, and the connection terminal 542 is It is exposed to the outside through the exposure hole and is connected to the external communication cable,
Upper and lower engaging projections 512a are formed on the inner surface of the first boss 512 of the housing 510 , and the second boss 562 of the cover 560 is caught on the outer surface of the first boss 512 . A locking groove 562a into which the jaw 512a is inserted and hooked is formed, so that the first boss is caught when the second boss 562 of the cover 560 is inserted into the first boss 512 of the housing. The first boss (512) and the second boss (562) are coupled to each other by the locking groove (562a) of the second boss being caught on the jaw (512a),
Electric vehicle power distribution device with built-in busbar distributed power sensing module. The method of claim 1,
The power sensing module 500,
The first power detection module 501 installed at the front end of the fast charging connector 101, the second power detection module 502 installed at the front end of the EPT connector 106, and the BAT connector 105 installed at the front end Including a third power sensing module 503,
After the first power detection module 501, the second power detection module 502 and the third power detection module 503 are distributed on different sides inside the case 100 in order to minimize the influence of the mutual magnetic field, Characterized in that it is exposed to the outside through the case,
Electric vehicle power distribution device with built-in busbar distributed power sensing module. The method of claim 1,
The cover 560 is provided with a side correction rib 563 along the edge, and is introduced into the housing 510 when combined with the housing 510 to reinforce the side strength of the cover 560 and the housing 510 . ) characterized in that a fastening part 570 for coupling with the case 100 is provided at the lower end thereof,
Electric vehicle power distribution device with built-in busbar distributed power sensing module. The method of claim 1,
The magnetic body 520 is manufactured by slitting an electrical steel sheet having a thickness of 0.23 mm to a width of 10 mm, winding it to a thickness of 5 mm, heat-treating it in a non-oxidizing atmosphere at 800 ° C. for 1 hour, and then molding it, characterized in that,
Electric vehicle power distribution device with built-in busbar distributed power sensing module. The method of claim 1,
The connection terminal 542 is electrically connected to the circuit board 540 and transmits a signal by the sensor 530 to the control unit outside the case 100 via an external communication cable and the case 100. doing,
Electric vehicle power distribution device with built-in busbar distributed power sensing module. 6. The method of claim 5,
The external communication cable is a UTP cable (Unshielded Twisted Pair cable), characterized in that the sensor 530 is a Hall sensor (Hall sensor),
Electric vehicle power distribution device with built-in busbar distributed power sensing module.

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