JP6194337B2 - vehicle - Google Patents

Description

  The present invention relates to a vehicle including a battery, a power conversion device, and a voltage conversion device.

  A vehicle such as a hybrid vehicle or an electric vehicle using a motor as a drive source is usually a battery (for example, a high voltage battery) that supplies electric power to the motor, and power conversion that converts electric power when the electric power of the battery is supplied to the motor. A device (for example, an inverter), and a voltage conversion device (for example, a DC-DC converter) for stepping down the voltage in order to supply electric power of the battery to an auxiliary machine or another battery (for example, a low-voltage battery). ing. For example, in the vehicle described in Patent Document 1, a battery is placed in a luggage compartment, and a high-voltage equipment unit that accommodates power conversion equipment and voltage conversion equipment is placed on a center tunnel of a floor panel.

JP 2003-237288 A

  However, in the vehicle described in Patent Document 1, the power conversion device and the voltage conversion device are arranged side by side in the high voltage system unit and the battery power input unit is provided at the rear end of the high voltage system unit. In connecting the connection line extending from the battery power input unit to the power conversion device and the voltage conversion device, not only the connection line of the conversion device arranged on the front side becomes longer, but also the connection lines of the power conversion device and the voltage conversion device However, there is a possibility that the noise performance deteriorates due to electrical interference.

  An object of the present invention is to provide a vehicle that can not only improve noise performance but also shorten the length of a connection line.

In order to achieve the above object, the invention described in claim 1
A first motor (for example, a first motor M1 in an embodiment described later);
A battery for supplying electric power to the first motor (for example, a high voltage battery B in an embodiment described later);
A power conversion device (for example, an inverter 101 in an embodiment described later) that converts the power when supplying the power of the battery to the first motor;
A vehicle (for example, a later-described embodiment) including a voltage conversion device (for example, a DC-DC converter 102 according to a later-described embodiment) that converts a voltage to supply power of the battery to an auxiliary machine or another battery. Vehicle 10),
The power conversion device and the voltage conversion device are provided in a housing (for example, a housing 120 in an embodiment described later) disposed on a power supply line from the battery toward the first motor.
The power conversion device is disposed on one side (for example, the front side of a later-described embodiment) with respect to a battery power input unit (for example, a main connector 106 of the later-described embodiment) of the casing, and the voltage conversion device. Is arranged on the other side of the battery power input part of the housing (for example, the rear side of the embodiment described later),
Connection lines extending from the battery power input unit (for example, a first DC line 151 and a second DC line 152 in the embodiment described later) branch in directions away from each other and are connected to the voltage conversion device and the power conversion device ,
The first motor is disposed in a motor room in front of the vehicle (for example, a motor room MR in an embodiment described later),
The housing is disposed in a center console (for example, the center console 50 in the embodiment described later) located between the front seats in the vehicle interior (for example, the front seats 15L, 15R in the embodiment described later),
The power conversion device and the voltage conversion device are arranged in this order from the front to the rear in the longitudinal direction of the center console.

The invention described in claim 2
A first motor (for example, a first motor M1 in an embodiment described later);
A battery for supplying electric power to the first motor (for example, a high voltage battery B in an embodiment described later);
A power conversion device (for example, an inverter 101 in an embodiment described later) that converts the power when supplying the power of the battery to the first motor;
A vehicle (for example, a later-described embodiment) including a voltage conversion device (for example, a DC-DC converter 102 according to a later-described embodiment) that converts a voltage to supply power of the battery to an auxiliary machine or another battery. Vehicle 10),
The power conversion device and the voltage conversion device are provided in a housing (for example, a housing 120 in an embodiment described later) disposed on a power supply line from the battery toward the first motor.
The power conversion device is disposed on one side (for example, the front side of a later-described embodiment) with respect to a battery power input unit (for example, a main connector 106 of the later-described embodiment) of the casing, and the voltage conversion device. Is arranged on the other side of the battery power input part of the housing (for example, the rear side of the embodiment described later),
Connection lines extending from the battery power input unit (for example, a first DC line 151 and a second DC line 152 in the embodiment described later) branch in directions away from each other and are connected to the voltage conversion device and the power conversion device,
The housing further includes a control device that controls the power conversion device (for example, a motor ECU 103 in an embodiment described later),
The power conversion device, the voltage conversion device, and the control device are respectively disposed in spaces separated by partition walls made of a magnetic material (for example, first to third partition walls W1 to W3 in embodiments described later). .

The invention according to claim 3
The vehicle according to claim 1 ,
The housing further includes a discharge control device (for example, a discharge control device 104 according to an embodiment described later) that forcibly controls the electric power remaining in the power conversion device in the event of a vehicle collision,
The discharge control device is disposed in front of the power conversion device in the longitudinal direction and at a position avoiding a seat pipe (for example, a seat pipe 15a in an embodiment described later) of the front seat in a vehicle side view. The

The invention according to claim 4
The vehicle according to claim 3 ,
The voltage conversion device is arranged to overlap the movable range of the seat pipe of the front seat in a side view of the vehicle,
A cooling channel (for example, a DC-DC converter cooling channel 102a in an embodiment described later) is formed in the partition wall that surrounds the voltage conversion device, and a load that receives a load received from the seat pipe due to a side collision. A pass function is provided.

The invention described in claim 5
The vehicle according to claim 4 ,
A high-voltage line (for example, a DC line 114 in an embodiment described later) extending from the battery power input unit to the battery is disposed below the partition wall having the load path function.

The invention described in claim 6
The vehicle according to claim 4 or 5 ,
A second motor (for example, a second motor M2 in an embodiment described later) and a third motor (for example, a third motor M3 in an embodiment described later) are provided behind the housing.
Two three-phase connectors for supplying power to the second motor and the third motor (for example, a second three-phase connector 108 and a third three-phase connector 109 in the embodiment described later) have the load path function. It is below the provided partition and is arranged inside the partition in the vehicle width direction.
The invention described in claim 7
A first motor (for example, a first motor M1 in an embodiment described later);
A battery for supplying electric power to the first motor (for example, a high voltage battery B in an embodiment described later);
A power conversion device (for example, an inverter 101 in an embodiment described later) that converts the power when supplying the power of the battery to the first motor;
A vehicle (for example, a later-described embodiment) including a voltage conversion device (for example, a DC-DC converter 102 according to a later-described embodiment) that converts a voltage to supply power of the battery to an auxiliary machine or another battery. Vehicle 10),
The power conversion device and the voltage conversion device are provided in a housing (for example, a housing 120 in an embodiment described later) disposed on a power supply line from the battery toward the first motor.
A power line from the battery is connected to a battery power input unit of the housing (for example, a main connector 106 in an embodiment described later),
Connection lines extending from the battery power input unit (for example, a first DC line 151 and a second DC line 152 in the embodiment described later) extend in a first direction from the battery power input unit toward the inside of the housing,
The power conversion device is disposed on one side in a second direction intersecting the first direction with respect to the battery power input unit of the casing, and the voltage conversion device is connected to the battery of the casing. With respect to the power input unit, the second input direction is arranged on the other side opposite to the one side,
The connection line branches inside the casing toward the one side and the other side in the second direction, and is separated from each other in the second direction. Connected to the device.
The invention according to claim 8 provides:
The vehicle according to claim 7,
The connection line is connected to end faces in the second direction of the voltage conversion device and the power conversion device.

According to the first aspect of the present invention, the connection line from the battery power input unit to the power conversion device and the connection line from the battery power input unit to the voltage conversion device are branched in the housing in the casing. Thus, noise performance can be improved. Further, the length of both connection lines from the battery power input unit can be shortened.
Moreover, not only can a sufficient distance be provided between the voltage conversion device and the power conversion device, but also the space in the center console can be effectively utilized. Further, the three-phase line extending from the power conversion device to the first motor can be shortened.

According to the second aspect of the present invention, even when the casing is sandwiched between the front seats at the time of a side collision, the discharge control device in the casing can be prevented from being sandwiched between the seat pipes, which are rigid materials, and the discharge Damage to the control device can be suppressed.

According to the third aspect of the present invention, the connection line from the battery power input unit to the power conversion device and the connection line from the battery power input unit to the voltage conversion device are branched in the housing in the casing. Thus, noise performance can be improved. Further, the length of both connection lines from the battery power input unit can be shortened.
In addition, the three-phase wire connected to the power conversion device, the auxiliary wiring connected to the voltage conversion device, and the control line connected to the control device are separated from each other through a partition wall in the housing, thereby reducing noise. The performance can be further improved.

According to the fourth aspect of the present invention, it is possible to reduce the cost by suppressing the occurrence of a ground fault and a short circuit in the casing due to a side collision and using the partition walls in multiple functions.

According to the fifth aspect of the present invention, it is possible to suppress pinching of the high voltage line at the time of a side collision and to suppress damage to the connector to which the high voltage line is connected.

According to the sixth aspect of the present invention, it is possible to suppress pinching of the three-phase wire at the time of a side collision, and it is possible to suppress damage to the three-phase connector. Furthermore, the size of the three-phase connector in the vehicle width direction can be reduced.

1 is a schematic view of a vehicle according to an embodiment of the present invention. It is a perspective view which shows the center console arrange | positioned between the front seat of the vehicle which concerns on one Embodiment of this invention, and a front seat. It is sectional drawing along the front-back direction of a high voltage | pressure apparatus unit arrangement | positioning part. It is sectional drawing along the vehicle width direction which shows the rear part of a high voltage | pressure system equipment unit. It is a bottom view of a high-voltage equipment unit. It is a perspective view of the rear part of a high voltage | pressure apparatus unit. It is a top view which shows the cooling water flow path of a DC-DC converter. It is a disassembled perspective view of a rear three-phase connector case. It is a perspective view which shows the other example of a rear part three-phase connector case.

<Vehicle>
Hereinafter, a vehicle according to an embodiment of the present invention will be described with reference to the drawings. It should be noted that the drawings are viewed in the direction of the reference numerals, and in the following description, front, rear, left and right, and top and bottom are in accordance with the direction seen from the driver, and the front of the vehicle is Fr, rear is Rr, left is L, and right is R, upper is shown as U, and lower is shown as D.

FIG. 1 is a schematic view of a vehicle according to an embodiment of the present invention, and FIG. 2 is a perspective view showing a center console disposed between the front seat and the front seat of the vehicle according to an embodiment of the present invention. FIG. 3 is a cross-sectional view along the front-rear direction of the high-voltage equipment unit disposition portion.
As shown in FIG. 1, the vehicle 10 includes a first motor M1 for driving front wheels in a motor room MR in front of the vehicle, and second and third motors M2 and M3 for driving rear wheels in the rear of the vehicle. A high voltage battery B that supplies power to the first to third motors M1 to M3 is disposed. The first to third motors M1 to M3 can function as electric motors by power driving and can also function as generators by regenerative driving. 2 and 3, a high-voltage system unit 100 electrically connected to the first to third motors M <b> 1 to M <b> 3 and the high-voltage battery B is disposed on the center tunnel 12 formed on the floor panel 11. Arranged in the center console 50. The center tunnel 12 is formed so as to protrude upward along the vehicle front-rear direction at the center of the floor panel 11 in the vehicle width direction. One end of the center tunnel 12 is connected to an internal combustion engine (not shown). The exhaust pipe 20 is disposed.

  The center console 50 is disposed between the left and right front seats 15L, 15R. For example, a cup holder 51, a shift knob 52, a tray 53 that can accommodate small items, and an occupant's armrest 54 are provided on the upper surface in order from the front. The inner space is covered with the outer cover 55 formed. A seat pipe 15a extending in the vehicle width direction is provided at the rear ends of the seats of the front seats 15L and 15R. The seat pipe 15a is a rigid material that supports the front seats 15L and 15R, and moves in a predetermined movable range following the front-rear position adjustment and height adjustment of the front seats 15L and 15R.

<Overview of high-voltage equipment unit>
Next, an outline of the high-voltage equipment unit 100 according to the present embodiment will be described with reference to FIGS. 4 is a cross-sectional view of the rear portion of the high-voltage system unit 100 along the vehicle width direction, FIG. 5 is a bottom view of the high-voltage system unit 100, and FIG. FIG.

  The high-voltage system unit 100 according to the present embodiment includes a box-shaped housing 120, an inverter 101 provided on the front side of the housing 120, a DC-DC converter 102 provided on the rear side of the housing 120, and a housing. Motor ECU 103 disposed above inverter 101 in body 120, discharge control device 104 disposed in front of inverter 101 in housing 120, and one side of DC-DC converter 102 in housing 120 The fuse 105 for the air conditioner arranged in the direction, the main connector 106 provided on the lower surface of the middle part of the housing 120, the first three-phase connector 107 provided on the lower surface of the front end of the housing 120, and the rear of the housing 120. Second three-phase connector 108 and third three-phase connector 109 provided on the lower surface of the end, and a control line connector provided on the front end surface of housing 120 110, an air conditioner connector 111 provided on the rear end surface of the housing 120, a low-voltage battery connection terminal block (not shown) provided in the rear end portion of the housing 120, and cooling provided on the rear lower surface of the housing 120 The water inlet 112 and the cooling water outlet 113 provided in the front lower surface of the housing | casing 120 are provided.

  The main connector 106 is connected to the high voltage battery B via the DC line 114, and inputs power from the high voltage battery B to the high voltage system unit 100 and outputs power from the high voltage system unit 100 to the high voltage battery B. The DC-DC converter 102 performs step-down conversion of the electric power input from the main connector 106 and outputs the electric power to the low-voltage battery from the low-voltage battery connection terminal block, and from the air-conditioner connector 111 to the air-conditioner via the air-conditioner fuse 105. Output. As shown in FIG. 6, a fuse replacement window portion that can be opened and closed by attaching and detaching the lid member 121 is formed on the upper surface of the rear end portion of the housing 120 so that the air conditioner fuse 105 can be replaced. ing. Further, the DC-DC output cable 118 connected to the low-voltage battery connection terminal block runs in parallel with the ground cable 119 connected to the housing 120, thereby reducing low-frequency noise.

  The inverter 101 mainly converts DC power input from the main connector 106 into three-phase AC power and outputs the power from the first three-phase connector 107, the second three-phase connector 108, and the third three-phase connector 109. The first three-phase connector 107 supplies three-phase alternating current power to the first motor M1 mainly through the three-phase wire 115, and the second three-phase connector 108 and the third three-phase connector 109 mainly have the three-phase wire 116. Three-phase AC power is supplied to the second motor M2 and the third motor M3 via 117. The motor ECU 103 exchanges signals from various sensors and operating devices connected to the control line connector 110, and controls the inverter 101 based on these signals, thereby operating the first to third motors M1 to M3. To change.

  The discharge control device 104 is provided to forcibly discharge the electric power remaining in the inverter 101 at the time of a vehicle collision. The discharge control device 104 of the present embodiment is disposed in front of the inverter 101 in the vehicle front-rear direction and at a position avoiding the seat pipes 15a of the front seats 15L and 15R in the vehicle side view. Thereby, even when the housing 120 is sandwiched between the front seats 15L and 15R at the time of a side collision, the discharge control device 104 can be prevented from being damaged by the seat pipe 15a, and the forced discharge can be surely executed.

  The cooling water inlet 112 is connected to a radiator (not shown) via a pipe, and introduces cooling water supplied from the radiator into a cooling channel formed in the high-pressure system unit 100. The cooling flow path includes an inverter cooling flow path (not shown) for cooling the inverter 101 and a DC-DC converter cooling flow path 102a (see FIG. 7) for cooling the DC-DC converter 102. In the present embodiment, a serial cooling flow in which the DC-DC converter cooling channel 102a is connected downstream of the cooling water inlet 112 and the inverter cooling channel is connected further downstream of the DC-DC converter cooling channel 102a. By configuring the path, cooling is performed in order from the low-pressure high-pressure equipment. And the cooling water after cooling the high voltage | pressure apparatus is returned to a radiator via piping from the cooling water exit 113. FIG.

  Next, the arrangement and details of the high-voltage equipment unit 100 according to the present embodiment will be described with reference to FIGS.

<Arrangement of high-voltage equipment unit>
As shown in FIG. 3, in the vehicle 10 of the present embodiment, when the high-voltage equipment unit 100 is disposed on the center tunnel 12 formed to extend in the front-rear direction on the floor panel 11, The main connector 106, the first three-phase connector 107, the second three-phase connector 108, the third three-phase connector 109, the cooling water inlet 112 and the cooling water outlet 113 are provided through the upper surface of the center tunnel 12 and below the passenger compartment. Is arranged. On the lower surface of the housing 120, seal materials C <b> 1 to C <b> 1 surrounding the main connector 106, the first three-phase connector 107, the second three-phase connector 108, the third three-phase connector 109, the cooling water inlet 112 and the cooling water outlet 113. C4 is provided, and these sealing materials C1 to C4 are sandwiched between the lower surface of the casing 120 and the upper surface of the center tunnel 12, thereby preventing water from entering from the penetrating portion. Further, the main connector 106, the first three-phase connector 107, the second three-phase connector 108, and the third three-phase connector 109 are waterproof connectors and prevent not only water intrusion but also high-frequency sound leakage. .

  As shown in FIG. 3, inside the center tunnel 12, a heat shield plate 21 that partitions between the cables connected to the high-voltage equipment unit 100 and the exhaust pipe 20 is provided. In the present embodiment, the heat shield 21 is extended to the front of the first three-phase connector 107 provided at the front end of the high-voltage equipment unit 100, thereby protecting the connectors and cables from the water splashed by the front wheels. doing. Thereby, the heat shield 21 can be used also as a splash guard. In the present embodiment, the first three-phase connector 107 is penetrated under the passenger compartment, and the three-phase wire 115 connected thereto is routed to the motor room MR through the center tunnel 12. The first three-phase connector 107 may be positioned in the vehicle interior, and the three-phase wire 115 connected thereto may be routed to the motor room MR through a through hole formed in the lower part of the dashboard 22.

[Internal wiring of high-voltage system unit]
As shown in FIG. 3, the high-voltage system unit 100 includes a first DC line 151 that connects the main connector 106 and the inverter 101, and the main connector 106 and a DC-DC converter as internal wirings arranged in the housing 120. 102, a second DC line 152 connecting the inverter 101 and the first three-phase connector 107, a first three-phase line 153 connecting the inverter 101 and the first three-phase connector 107, and a second three-phase line connecting the inverter 101 and the second three-phase connector 108. 154, a third three-phase line 155 that connects the inverter 101 and the third three-phase connector 109, a low-voltage battery line 156 that connects the DC-DC converter 102 and the low-voltage battery connection terminal block, and the DC-DC converter 102 And the air conditioner line 157 connecting the air conditioner connector 111, the motor ECU 103 and the control line connector 110. And a control signal line 158, a.

  The inverter 101 that is the connection destination of the first DC line 151 is disposed on the vehicle front side with respect to the main connector 106, and the DC-DC converter 102 that is the connection destination of the second DC line 152 is the vehicle rear side with respect to the main connector 106. The first DC line 151 and the second DC line 152 that are arranged on the side and extend from the main connector 106 to the inside of the housing 120 branch in a direction away from each other and are connected to the inverter 101 and the DC-DC converter 102. .

  In the high-voltage system unit 100 of the present embodiment, when the inverter 101, the DC-DC converter 102, and the motor ECU 103 are arranged in the housing 120, the inverter 101, the DC-DC converter 102, and the motor ECU 103 are made of a magnetic material. It arrange | positions in the space divided by the 1st-3rd partition W1-W3, respectively. Specifically, the inverter 101 and the motor ECU 103 are separated by a first partition wall W1, and the motor ECU 103 and the DC-DC converter 102 are partitioned by a second partition wall W2, and the inverter 101 and the DC-DC converter 102 are separated. Is separated by a second partition wall W2 and a third partition wall W3. Thus, the first to third three-phase lines 153 to 155 connected to the inverter 101, the low-voltage battery line 156 and the air conditioner line 157 connected to the DC-DC converter 102, and the control signal connected to the motor ECU 103 It is possible to improve the noise performance by separating the line 158 through the first to third partition walls W1 to W3. In addition, the 2nd partition W2 and the 3rd partition W3 are formed of the DC-DC case 123 mentioned later.

[DC-DC case]
As shown in FIGS. 4 and 6, the DC-DC converter 102 and the air conditioner fuse 105 are accommodated in a DC-DC case 123 provided at the rear portion of the housing 120. The DC-DC case 123 is a multilayer case including a lower case 124, an intermediate case 125 stacked on the lower case 124, and an upper case 126 that closes the upper opening of the intermediate case 125, and is a DC-DC converter. 102 and the air conditioner fuse 105 are accommodated in an intermediate case 125, and the above-described DC-DC converter cooling channel 102 a is formed between the lower case 124 and the intermediate case 125.

  The DC-DC case 123 formed of a multilayer case is provided with a load path function for receiving a load in the vehicle width direction that is received during a side collision. Therefore, even if the DC-DC converter 102 is arranged so as to overlap the movable range of the seat pipe 15a in a side view, the load at the side collision is received by the load path function of the DC-DC case 123, and the casing 120 Damage can be prevented. In the present embodiment, the DC line 114, the main connector 106 to which the DC line 114 is connected, the three-phase lines 116 and 117, and the three-phase lines 116 and 117 are provided below the DC-DC case 123 having a load path function. By arranging the second three-phase connector 108 and the third three-phase connector 109 connected to each other, the DC cable 114 and the three-phase cables 116 and 117 can be caught between the main connector 106 and the second three-phase connector at the time of a side collision. 108 and the third three-phase connector 109 can be prevented from being damaged.

FIG. 7 is a plan view showing a cooling water flow path of the DC-DC converter.
As shown in FIG. 7, two sealing materials C5 and C6 are sandwiched between the lower case 124 and the intermediate case 125. One sealing material C5 seals the area of the DC-DC converter cooling flow path 102a, and the other sealing material C6 seals an area other than the DC-DC converter cooling flow path 102a. Is a double seal in which both sealing materials C5 and C6 are arranged in parallel. Thereby, even if the sealing material C5 breaks down, it becomes possible to prevent the cooling water from flowing into the DC-DC case 123 by the sealing material C6.

[Rear three-phase connector case]
FIG. 8 is an exploded perspective view of the rear three-phase connector case, and FIG. 9 is a perspective view showing another example of the rear three-phase connector case.
As shown in FIG. 8, the second three-phase connector 108 and the third three-phase connector 109 of this embodiment are incorporated in a rear three-phase connector case 130 formed separately from the housing 120, and the rear three-phase It is attached to the housing 120 via the connector case 130. In this way, the incorporation of the second three-phase connector 108 and the third three-phase connector 109 is improved, and the shape of the housing 120 can be simplified.

  As shown in FIG. 8, the rear three-phase connector case 130 of this embodiment has a bolt assembly window 131 on the left and right side surfaces, and the bolt assembly window 131 is covered with a detachable lid 132. Yes. According to such a rear three-phase connector case 130, the bolt 133 for connecting the second three-phase connector 108 and the second three-phase wire 154, the third three-phase connector 109 and the third three-phase wire 155, It is possible to rotate the bolt 133 for connecting the externally from the outside of the rear three-phase connector case 130 with a tool inserted through the bolt assembly window 131. As shown in FIG. 9, when the rear three-phase connector case 130B is not formed with a bolt assembly window, the bolt 133 is turned from the upper opening of the rear three-phase connector case 130B.

  The rear three-phase connector case 130 is disposed so as to penetrate the through hole 12a formed in the center tunnel 12 from above when assembled in the housing 120. When there is a concern about the strength of the center tunnel 12 being lowered due to the through-hole 12a, the reinforcement against the side collision can be improved by providing the reinforcing member 14 that connects the left and right floor panels 11 and the cross member 13 below the center tunnel 12. (See FIG. 4).

  As described above, according to the vehicle 10 of the present embodiment, the first DC line 151 and the second DC line 152 extending from the main connector 106 into the housing 120 branch in a direction away from each other, and are connected to the inverter 101 and the DC−. Since it is connected to the DC converter 102, not only can the noise performance be improved by branching the first DC line 151 and the second DC line 152 away from each other, but the first DC line 151 and the second DC line 152 are connected to each other. Can be shortened.

  The first motor M1 is disposed in the motor room MR in front of the vehicle, and the casing 120 is disposed in the center console 50 located between the front seats 15L and 15R in the vehicle interior, and includes the inverter 101 and the DC-DC converter. 102 are arranged in this order from the front to the rear in the longitudinal direction of the center console 50, so that not only can the space between the inverter 101 and the DC-DC converter 102 be sufficient, but also the space in the center console 50 is effectively utilized. it can. Further, the three-phase wire 115 and the first three-phase wire 153 extending from the inverter 101 to the first motor M1 can be shortened.

  The casing 120 houses a discharge control device 104 that forcibly controls the electric power remaining in the inverter 101 in the event of a vehicle collision, and the discharge control device 104 is located in front of the inverter 101 in the vehicle longitudinal direction. And since it is arranged at a position avoiding the seat pipe 15a of the front seats 15L and 15R in a side view of the vehicle, even when the casing 120 is sandwiched between the front seats 15L and 15R at the time of a side collision, it is made of a rigid material. It is possible to prevent the discharge control device 104 in the housing 120 from being caught in a certain seat pipe 15a, and it is possible to suppress damage to the discharge control device 104.

  The casing 120 houses a motor ECU 103 that controls the inverter 101. The inverter 101, the DC-DC converter 102, and the motor ECU 103 are separated by first to third partition walls W1 to W3 made of a magnetic material. The first to third three-phase lines 153 to 155 connected to the inverter 101, the low-voltage battery line 156 and the air conditioner line 157 connected to the DC-DC converter 102, and the motor The control signal line 158 connected to the ECU 103 is separated through the first to third partition walls W1 to W3, so that the noise performance can be improved.

  Further, the DC-DC converter 102 is arranged so as to overlap the movable range of the seat pipe 15a of the front seats 15L, 15R in a side view of the vehicle, and a DC-DC case 123 surrounding the DC-DC converter 102 is Since the DC-DC converter cooling flow path 102a is formed and a load path function for receiving the load received from the seat pipe 15a due to a side collision is provided, the occurrence of a ground fault or a short circuit in the housing 120 due to the side collision is suppressed. At the same time, the multi-functional use of the DC-DC case 123 can reduce the manufacturing cost.

  In addition, since the DC line 114 extending from the main connector 106 to the battery is disposed below the DC-DC case 123 having a load path function, the DC line 114 can be prevented from being caught during a side collision, and Also, damage to the main connector 106 can be suppressed.

  In addition, a second motor M2 and a third motor M3 are provided behind the housing 120, and the second three-phase connector 108 and the third three M3 for supplying power to the second motor M2 and the third motor M3. Since the phase connector 109 is arranged below the DC-DC case 123 having a load path function and inward of the DC-DC case 123 in the vehicle width direction, the three-phase wires 116, 117 at the time of a side collision are arranged. Can be suppressed, and damage to the second three-phase connector 108 and the third three-phase connector 109 can be suppressed. Furthermore, the size in the vehicle width direction of the second three-phase connector 108 and the third three-phase connector 109 can be reduced.

  In addition, this invention is not limited to embodiment mentioned above, A deformation | transformation, improvement, etc. are possible suitably.

10 Vehicle 15L, 15R Front seat 15a Seat pipe 50 Center console 101 Inverter (power conversion device)
102 DC-DC converter (voltage converter)
102a DC converter cooling channel (cooling channel)
103 motor ECU (control equipment)
104 Discharge Control Device 106 Main Connector (Battery Power Input Unit)
108 Second three-phase connector (three-phase connector)
109 Third three-phase connector (three-phase connector)
114 DC line (high voltage line)
120 Housing 123 DC-DC case (partition wall)
151 First DC line (connection line)
152 2nd DC line (connection line)
B High voltage battery M1 1st motor M2 2nd motor M3 3rd motor MR Motor room W1-W3 Partition

Claims (8)

A first motor;
A battery for supplying power to the first motor;
A power conversion device that converts power when supplying power of the battery to the first motor;
A vehicle comprising: a voltage conversion device that converts a voltage to supply power of the battery to an auxiliary machine or another battery,
The power conversion device and the voltage conversion device are provided in a housing disposed on a power supply line from the battery toward the first motor,
The power conversion device is disposed on one side with respect to the battery power input portion of the housing, and the voltage conversion device is disposed on the other side with respect to the battery power input portion of the housing,
The connection line extending from the battery power input unit branches in a direction away from each other and is connected to the voltage conversion device and the power conversion device ,
The first motor is disposed in a motor room in front of the vehicle,
The housing is disposed on a center console located between front seats in a vehicle cabin,
The vehicle in which the power conversion device and the voltage conversion device are arranged in this order from front to back in the longitudinal direction of the center console .   A first motor;
  A battery for supplying power to the first motor;
  A power conversion device that converts power when supplying power of the battery to the first motor;
  A vehicle comprising: a voltage conversion device that converts a voltage to supply power of the battery to an auxiliary machine or another battery,
  The power conversion device and the voltage conversion device are provided in a housing disposed on a power supply line from the battery toward the first motor,
  The power conversion device is disposed on one side with respect to the battery power input portion of the housing, and the voltage conversion device is disposed on the other side with respect to the battery power input portion of the housing,
  The connection line extending from the battery power input unit branches in a direction away from each other and is connected to the voltage conversion device and the power conversion device,
  The housing further includes a control device that controls the power conversion device,
  The vehicle, wherein the power conversion device, the voltage conversion device, and the control device are respectively disposed in spaces separated by a partition made of a magnetic material. The vehicle according to claim 1 ,
The housing further includes a discharge control device that forcibly discharges power remaining in the power conversion device at the time of a vehicle collision,
The discharge control device is a vehicle disposed in front of the power conversion device in the longitudinal direction and at a position avoiding a seat pipe of the front seat in a side view of the vehicle. The vehicle according to claim 2 ,
The voltage conversion device is arranged to overlap the movable range of the seat pipe of the front seat in a side view of the vehicle,
A vehicle in which a cooling channel is formed in the partition wall surrounding the voltage conversion device and a load path function for receiving a load received from the seat pipe due to a side collision is provided. The vehicle according to claim 4 ,
A vehicle in which a high-voltage line extending from the battery power input unit to the battery is disposed below the partition wall having the load path function. The vehicle according to claim 4 or 5 ,
A second motor and a third motor are provided behind the housing,
Two three-phase connectors for supplying electric power to the second motor and the third motor are arranged below the partition wall having the load path function and arranged inward of the partition wall in the vehicle width direction. Vehicle.   A first motor;
  A battery for supplying power to the first motor;
  A power conversion device that converts power when supplying power of the battery to the first motor;
  A vehicle comprising: a voltage conversion device that converts a voltage to supply power of the battery to an auxiliary machine or another battery,
  The power conversion device and the voltage conversion device are provided in a housing disposed on a power supply line from the battery toward the first motor,
  The power line from the battery is connected to the battery power input section of the housing,
  A connection line extending from the battery power input unit extends in a first direction from the battery power input unit toward the inside of the housing.
  The power conversion device is disposed on one side in a second direction intersecting the first direction with respect to the battery power input unit of the casing, and the voltage conversion device is connected to the battery of the casing. With respect to the power input unit, the second input direction is arranged on the other side opposite to the one side,
  The connection line branches inside the casing toward the one side and the other side in the second direction, and is separated from each other in the second direction. A vehicle connected to equipment.   The vehicle according to claim 7,
  The connection line is a vehicle connected to end faces in the second direction of the voltage conversion device and the power conversion device.

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