WO2022209661A1

WO2022209661A1 - Saddled vehicle

Info

Publication number: WO2022209661A1
Application number: PCT/JP2022/010276
Authority: WO
Inventors: 誠藤久保
Original assignee: 本田技研工業株式会社
Priority date: 2021-03-30
Filing date: 2022-03-09
Publication date: 2022-10-06
Also published as: TW202243946A; JPWO2022209661A1; CN117043048A; JP7454104B2; TWI803239B

Abstract

This motorcycle (1) comprises: a vehicle frame (20); a power unit (41) which comprises a motor (44) and a swing frame (50) housing the motor (44); a ring member (70) which pivotably connects the vehicle frame (20) and the swing frame (50); and a PCU (80) which is connected to the motor (44) via a three-phase line (90) and is fixed to the ring member (70).

Description

saddle-riding vehicle

The present invention relates to a saddle-ride type vehicle.
This application claims priority to Japanese Patent Application No. 2021-058088 filed in Japan on March 30, 2021, the contents of which are incorporated herein.

For example, as disclosed in Patent Document 1, there is a saddle-ride type vehicle that includes a motor for vehicle travel and a power control unit that controls the motor. In the vehicle disclosed in Patent Document 1, the power control unit is arranged inside the center tunnel, and the motor is provided in the swing unit.

Japanese Patent No. 6825122

However, as the length of the electric wire such as the three-phase wire connecting the motor and the power control unit increases, the cost and weight of the vehicle increase, and the assembly work becomes more complicated.

Accordingly, the present invention provides a straddle-type vehicle capable of shortening the wires connected to the motor for running.

(1) A straddle-type vehicle according to an aspect of the present invention includes a power unit (41) having a vehicle body frame (20), a motor (44), and a case (50) housing the motor (44), and A link member (70) to which the vehicle body frame (20) and the case (50) are pivotably connected, and a motor (44) connected via an electric wire (90) to the link member (70). a fixed control unit (80).

According to the above configuration, the space around the link member, which can be a dead space between the power unit and the vehicle body frame, is effectively used as the space for arranging the control unit, while the control unit is arranged on the vehicle body side. By bringing the control unit closer to the motor, the wires connecting the control unit and the motor can be shortened.

(2) In the aspect (1) above, the control unit (80) may be fixed to the upper surface (73a) of the link member (70).

According to the above configuration, the link member covers the lower surface of the control unit, and the control unit can be protected from flying objects such as stepping stones flying from below.

(3) In the aspect (1) or (2) above, the control unit (80) is fastened to the link member (70), and the control unit (80) and the link member (70) are interposed between the control unit (80) and the link member (70). An elastic member (87) may be interposed.

According to the above configuration, the vibration and deformation of the link member can be absorbed by the elastic member and suppressed from being transmitted to the control unit. Thereby, application of external force to the control unit can be suppressed.

(4) In any one of aspects (1) to (3) above, the control unit (80) includes a housing (81) and a control board (82) accommodated in the housing (81), The housing (81) is connected to the link member (70) in a predetermined direction, and the control board (82) is connected to the connection portion of the housing (81) to the link member (70) in the predetermined direction. may be located on opposite sides.

According to the above configuration, compared to a configuration in which the control board is arranged on the same side of the housing as the joint with the link member, it is possible to make it difficult to transmit the stress applied from the joint to the control unit to the control board. can.

(5) In any one of the above (1) to (4), the electric wire (90) includes a motor connection portion (91) connected to the stator of the motor (44) and the control unit (80). a lead-in portion (92) introduced into the case (50) from the motor connection portion (91) and connected to the motor connection portion (91), wherein the case (50) includes the motor connection portion (91) and the lead-in portion A connection space (59a) in which a connection portion with (92) is arranged, and an introduction space ( 59b) and a partition wall (62), and the introduction part (92) may be inserted through the partition wall (62) via a seal member (66).

According to the above configuration, when the electric wire is drawn into the connection space, the introduction part of the electric wire can be extended from the introduction space to the connection space in a state in which the connection space is isolated from the introduction space communicating with the outside. As a result, it is possible to prevent the motor connection portion and the connection portion of the introduction portion from being exposed to water.

(6) In any one of aspects (1) to (5) above, the control unit (80) may include cooling fins (83) provided on the outer surface and extending along the longitudinal direction of the vehicle. good.

According to the above configuration, it is possible to allow running wind to pass through the gaps between the cooling fins, so it is possible to improve the air-cooling effect of the control unit.

(7) In any one of aspects (1) to (6) above, a seat (4) supported by the body frame (20) and a battery (6) arranged below the seat (4) , wherein at least part of the control unit (80) is arranged below the battery (6), and the longitudinal direction of the battery (6) is inclined in the longitudinal direction with respect to the vertical direction of the vehicle. It may be placed in any state.

According to the above configuration, it is possible to secure a clearance for the control unit that is displaced as the link member swings, compared to a configuration in which the battery is arranged with the longitudinal direction of the battery along the vertical direction. Therefore, the arrangement of the batteries can be adapted to the configuration in which the control unit is fixed to the link member.

According to the present invention, the electric wire connected to the motor for running can be shortened.

1 is a left side view showing the motorcycle of the first embodiment; FIG. 1 is a perspective view showing a rear lower portion of a motorcycle according to a first embodiment; FIG. Fig. 2 is a left side view showing the rear lower portion of the motorcycle of the first embodiment; It is the figure which looked at the rear lower part of the two-wheeled motor vehicle of 1st Embodiment from upper direction. It is a perspective view showing a link member of a 1st embodiment. FIG. 5 is a cross-sectional view taken along line VI-VI of FIG. 4; It is a left view which shows the motorcycle of 2nd Embodiment.

Hereinafter, embodiments of the present invention will be described based on the drawings. In the following description, the same reference numerals are given to components having the same or similar functions. Duplicate descriptions of these configurations may be omitted. Further, directions such as front, rear, up, down, left, and right in the following description are the same as the directions of the vehicle described below. That is, the vertical direction corresponds to the vertical direction, and the horizontal direction corresponds to the vehicle width direction. In the drawings used for the following description, an arrow UP indicates upward, an arrow FR indicates forward, and an arrow LH indicates leftward.

[First embodiment]
FIG. 1 is a left side view of the motorcycle of the first embodiment.
As shown in FIG. 1, the motorcycle 1 of this embodiment is a saddle type vehicle. The motorcycle 1 is a scooter-type vehicle having a step floor 5 on which a rider seated on a seat 4 puts his/her feet. The motorcycle 1 includes a front wheel 2, a rear wheel 3, a vehicle body frame 20, a vehicle cover 30, a unit swing type rear suspension 40 including a power unit 41, a power control unit (PCU) 80, A three-phase line 90 (see FIG. 3) including electric wires connecting the power unit 41 and the PCU 80 and a battery 6 as a power source of the power unit 41 are provided.

The front wheel 2 is pivotally supported on the lower ends of a pair of left and right front forks 11 of the front wheel suspension system 10 . The front wheel suspension system 10 is steerably supported at the front end of the body frame 20 . A steering bar handle 12 is attached to the upper portion of the front wheel suspension device 10 .

The vehicle body frame 20 includes a head pipe 21, a down frame 22, a lower frame 23, and a rear frame 24, which are integrally joined by welding or the like. The head pipe 21 is arranged at the front end of the vehicle body frame 20 . Down frame 22 is coupled to head pipe 21 . The down frame 22 extends downward from the head pipe 21 . A pair of lower frames 23 are provided on the left and right sides. Lower frame 23 is coupled to the lower end of down frame 22 . The lower frame 23 extends rearward from the lower end of the down frame 22 . A pair of rear frames 24 are provided on the left and right. Rear frame 24 is coupled to the rear end of lower frame 23 . The rear frame 24 extends upward and rearward from the rear ends of the pair of lower frames 23 . A pair of rear frames 24 support the seat 4 . A bracket 25 projecting rearward is provided at the front lower portion of each rear frame 24 . However, the bracket 25 may protrude rearward from the rear portion of the lower frame 23 . A pair of brackets 25 support a first pivot shaft 77 (see FIG. 3).

The vehicle cover 30 is composed of a plurality of exterior panels. The vehicle cover 30 has a front cover 31 , a handle cover 32 , a leg shield 33 , a lower cover 34 and a rear cover 35 . The front cover 31 is provided so as to cover the head pipe 21 . The handle cover 32 is provided so as to cover the center portion of the bar handle 12 . The leg shield 33 is provided so as to cover the down frame 22 and the legs of the driver from the front. A lower cover 34 is provided to cover the lower frame 23 . A step floor 5 is formed on the upper surface of the lower cover 34 on which the passenger puts his or her feet. The rear cover 35 extends rearward and upward from the lower cover 34 . The rear cover 35 is provided to cover the rear frame 24 from the front and from the outside in the vehicle width direction. A seat 4 is arranged above the rear cover 35 . It should be noted that the plurality of exterior panels constituting the vehicle cover 30 do not need to be divided into the respective portions described above, and may be arranged so as to straddle the boundaries of the respective portions, or each portion may be composed of a plurality of exterior panels. may be

The rear suspension 40 includes a power unit 41 , a link member 70 connecting the power unit 41 and the body frame 20 , and a rear cushion 42 interposed between the body frame 20 and the power unit 41 .

FIG. 2 is a perspective view showing the rear lower portion of the motorcycle of the first embodiment. Note that FIG. 2 shows a state in which a cover portion 52 (described later) is removed.
As shown in FIG. 2, the power unit 41 includes a driving motor 44 that is a driving source arranged on the left side of the rear wheel 3, a swing frame 50 that supports the motor 44, and a motor 44 that decelerates the output of the motor 44 for driving the rear wheels. It is a swing type power unit integrated with a power transmission mechanism 46 that transmits power to the axle of the wheel 3 .

FIG. 3 is a left side view showing the rear lower portion of the motorcycle of the first embodiment. FIG. 4 is a top view of the rear lower portion of the motorcycle of the first embodiment. Note that FIG. 3 shows a state in which a cover portion 52, which will be described later, is removed. Further, FIG. 4 shows the power unit in a cross section along line IV-IV in FIG.
As shown in FIG. 4, the swing frame 50 is a hollow case housing the motor 44 . The swing frame 50 is formed in an L shape in a plan view, and is arranged from the front space to the left space of the rear wheel 3 . The swing frame 50 includes a box-shaped body portion 51 that opens outward (left side) in the vehicle width direction, and a left side surface of the swing frame 50 that closes the opening of the body portion 51 from the outside in the vehicle width direction. and a cover portion 52 in which the cover portion 52 is located. The body portion 51 and the cover portion 52 are fastened and integrated with a plurality of bolts.

As shown in FIGS. 3 and 4, the swing frame 50 includes a motor accommodation portion 55 having a motor arrangement space 58 in which the motor 44 is arranged, and a wiring space 59 through which the three-phase line 90 extending from the motor accommodation portion 55 passes. and a routing portion 56 having The motor housing portion 55 is formed in the rear portion of the swing frame 50 and positioned to the left of the rear wheel 3 . The motor housing portion 55 is formed by the body portion 51 and the cover portion 52 . The motor housing portion 55 is formed in a cylindrical shape following the outer shape of the cylindrical motor. The motor accommodating portion 55 projects the output shaft of the motor 44 inward in the vehicle width direction. The power transmission mechanism 46 is coupled to the motor accommodating portion 55 from the inside in the vehicle width direction. The routing portion 56 is formed from the front portion of the swing frame 50 to the intermediate portion in the front-rear direction, and is integrated with the motor housing portion 55 . An opening 53 is formed at the front end of the routing portion 56 to communicate the routing space 59 with the outside of the swing frame 50 . The opening 53 extends through the main body 51 in the front-rear direction.

The swing frame 50 includes a partition wall 61 that separates the motor arrangement space 58 and the wiring space 59, a partition wall 62 that divides the wiring space 59 into a wire connection space 59a and an introduction space 59b, and a boss 63 provided in the wire connection space 59a. and a pair of left and right hanger arms 64 provided at the front end of the swing frame 50 .

The partition wall 61 is erected leftward from the right side wall of the body portion 51 . The partition wall 61 extends in the vertical direction and is connected to the upper wall and the lower wall of the main body portion 51 and is formed so as to have a gap with respect to the cover portion 52 at least partially.

The partition wall 62 separates a connection space 59a adjacent to the motor arrangement space 58 with the partition wall 61 interposed therebetween, and an introduction space 59b with the opening 53 open. The partition wall 62 extends along the vertical direction and the vehicle width direction, and continues to the inner surface of the wiring portion 56 over the entire circumference. The partition wall 62 includes an inner portion 62 a provided on the main body portion 51 and positioned on the inner side in the vehicle width direction, and an outer portion 62 b provided on the cover portion 52 and positioned on the outer side in the vehicle width direction. The inner portion 62a and the outer portion 62b have an edge on the cover portion 52 side of the inner portion 62a and an edge of the outer portion 62b on the main body portion 51 side by fastening the body portion 51 and the cover portion 52 together. Together they form a single partition wall 62 .

As shown in FIG. 2, a notch 65 is formed in the edge of the inner portion 62a of the partition wall 62 on the cover portion 52 side. A sealing member 66 is arranged in the notch 65 to tightly block communication between the connection space 59a and the introduction space 59b. Thereby, the partition wall 62 and the seal member 66 block the communication between the introduction space 59b communicating with the outside through the opening 53, the connection space 59a, and the motor arrangement space 58. As shown in FIG. Grommets 67 through which the electric wires of the three-phase line 90 are inserted are vertically arranged in the sealing member 66 .

As shown in FIG. 4, the boss 63 protrudes from the right side wall of the body portion 51 toward the cover portion 52 (left side). A pair of bosses 63 are provided with a gap therebetween in the vertical direction. A terminal block 94 , which will be described later, is fastened to the tip of each boss 63 .

As shown in FIGS. 2 and 4, the pair of hanger arms 64 protrude forward from the body portion 51 . The pair of hanger arms 64 are spaced apart in the vehicle width direction so as to sandwich the opening 53 of the main body 51 . The hanger arm 64 supports the second pivot shaft 78 via a bush having predetermined elasticity. A link member 70 is connected to the hanger arm 64 via a second pivot shaft 78 so as to be rotatable around an axis extending in the vehicle width direction.

FIG. 5 is a perspective view showing a link member of the first embodiment; FIG.
As shown in FIGS. 3 and 5, the link member 70 connects the lower rear portion of the vehicle body frame 20 and the swing frame 50 so as to be capable of swinging up and down. The link member 70 comprises a first pivot shaft outer cylinder 71 through which a first pivot shaft 77 supported by the bracket 25 of the vehicle body frame 20 penetrates, and a second pivot shaft 78 supported by a pair of hanger arms 64 of the swing frame 50 . a second pivot shaft outer cylinder 72 through which is penetrated; a first link arm 73 connecting the first pivot shaft outer cylinder 71 and the second pivot shaft outer cylinder 72; and a second link arm 74 extending rearward from the pivot shaft outer cylinder 71 and fastened to the second pivot shaft 78 .

The first pivot shaft outer cylinder 71 and the second pivot shaft outer cylinder 72 extend parallel to the axle of the rear wheel 3 respectively. The first pivot shaft outer cylinder 71 is fitted over the first pivot shaft 77 via a cylindrical bush. The second pivot shaft outer cylinder 72 is arranged behind and below the first pivot shaft outer cylinder 71 . The second pivot shaft outer cylinder 72 is arranged between the pair of hanger arms 64 . The second pivot shaft outer cylinder 72 is fitted over a second pivot shaft 78 supported by the hanger arm 64 .

As shown in FIG. 5, a pair of first link arms 73 are provided on the left and right. The pair of first link arms 73 are spaced apart in the vehicle width direction. The pair of first link arms 73 are arranged on both sides in the vehicle width direction with respect to the vehicle width center of the vehicle. The pair of first link arms 73 extend parallel to each other. The first link arm 73 is formed in a rectangular tubular shape. The first link arm 73 is connected to the first pivot shaft outer cylinder 71 from below by welding or the like. The first link arm 73 includes a front portion that extends downward from the first pivot shaft outer cylinder 71 while curving and extending rearward, and a rear portion that extends substantially horizontally rearward from the rear end of the front portion. The first link arm 73 is connected to the second pivot shaft outer cylinder 72 from the front by welding or the like.

The first link arm 73 has an upper surface 73a that extends substantially horizontally and faces upward. A cylindrical boss 75 to which the PCU 80 is fastened protrudes upward from the upper surface 73a. A pair of cylindrical bosses 75 are provided on each first link arm 73 with a gap therebetween in the front-rear direction. Accordingly, four cylindrical bosses 75 are provided on the entire link member 70 .

A pair of second link arms 74 are provided on the left and right. The pair of second link arms 74 are arranged on both sides of the pair of first link arms 73 in the vehicle width direction. The second link arm 74 is connected to the first pivot shaft outer cylinder 71 from below by welding or the like. The second link arm 74 extends substantially parallel to the first link arm 73 while being spaced from the first link arm 73 in the vehicle width direction. The second link arm 74 is formed in a groove shape that opens inward in the vehicle width direction. A rear end portion of the second link arm 74 is positioned outside the both ends of the second pivot shaft outer cylinder 72 in the vehicle width direction. A through hole coaxial with the second pivot shaft outer cylinder 72 is formed in the rear end portion of the second link arm 74 . As shown in FIG. 4 , the rear end of the second link arm 74 is arranged so as to sandwich the hanger arm 64 with the second pivot shaft outer cylinder 72 . The rear end of the second link arm 74 is fastened to the end of the second pivot shaft 78 .

As shown in FIGS. 3 and 4, the PCU 80 is a control device in which a control board 82 such as a PDU (Power Drive Unit) that is a motor driver and an ECU (Electric Control Unit) that controls the PDU is housed in a housing 81. . In some cases, the housing 81 also accommodates a DC-DC converter that converts the DC power supplied from the battery 6 into a predetermined voltage. PCU 80 is connected to motor 44 via three-phase line 90 .

The housing 81 is formed in a rectangular parallelepiped shape. The housing 81 is arranged so that the six outer surfaces face forward, backward, upward, downward, leftward, and rightward. The housing 81 is provided with cooling fins 83 and fastening portions 84 . The cooling fins 83 are erected on the outer surface of the housing 81 . The cooling fins 83 extend in the front-rear direction on the upper surface of the housing 81 . In this embodiment, the cooling fins 83 are provided on the entire top surface of the housing 81 .

The fastening portion 84 protrudes forward and backward from the housing 81 . A pair of fastening portions 84 are provided at lower portions of the front surface and the rear surface of the housing 81 at intervals in the vehicle width direction. A fastening hole 84a (see FIG. 6) through which a fastening member 86 such as a bolt is inserted extends vertically through the fastening portion 84 .

The PCU 80 is arranged above the link member 70 . The PCU 80 is arranged between the first pivot shaft outer cylinder 71 and the second pivot shaft outer cylinder 72 in plan view from above. The PCU 80 is arranged so as not to protrude outward in the vehicle width direction from the link member 70 . The PCU 80 overlaps the pair of first link arms 73 of the link member 70 in plan view. PCU 80 is vertically coupled to link member 70 . The PCU 80 is fastened and fixed to the cylindrical boss 75 of the first link arm 73 by a fastening member 86 inserted through the fastening hole 84a of the fastening portion 84 from above. Thereby, the PCU 80 is directly fixed to the upper surface 73 a of the first link arm 73 .

6 is a cross-sectional view taken along line VI-VI of FIG. 4. FIG.
As shown in FIG. 6, an elastic member 87 is interposed between the PCU 80 and the link member 70 . The elastic member 87 is a cylindrical rubber bush and is interposed between the fastening hole 84 a of the fastening portion 84 and the fastening member 86 . The elastic member 87 extends from between the inner peripheral surface of the fastening portion 84 and the shaft portion of the fastening member 86 , between the upper surface of the fastening portion 84 and the head portion of the fastening member 86 , and between the lower surface of the fastening portion 84 and the cylindrical boss 75 . is continuously provided between the upper end surface of the Thereby, the PCU 80 can be displaced with respect to the link member 70 within the elastic range of the elastic member 87 .

As shown in FIG. 3, the control board 82 is arranged in the housing 81 with the front and back surfaces of the board main body oriented in the vertical direction. The control board 82 is arranged on the opposite side of the housing 81 from the fastening portion 84 in the vertical direction. That is, since the fastening portion 84 is provided in the lower portion of the housing 81 , the control board 82 is arranged in the upper portion within the housing 81 .

As shown in FIGS. 3 and 4 , the three-phase line 90 extends forward from the housing 81 of the PCU 80 , passes through the opening 53 at the front end of the swing frame 50 , and enters the inside of the swing frame 50 . The three-phase line 90 extends inside the swing frame 50 and is connected to the motor 44 . The three-phase line 90 includes a motor connection portion 91 connected to the stator of the motor 44 , and an introduction portion 92 introduced from the PCU 80 into the swing frame 50 and connected to the motor connection portion 91 . A motor connection 91 extends rearward from the motor 44 . The motor connecting portion 91 passes between the partition wall 61 of the swing frame 50 and the cover portion 52, and is arranged across both the motor arrangement space 58 and the wiring space 59a. The introduction part 92 is inserted through the partition wall 62 via the sealing member 66 in the routing space 59, and is arranged across both the connection space 59a and the introduction space 59b, which are tightly isolated from each other. ing. Specifically, the three-phase electric wires forming the lead-in portion 92 pass through the partition wall 62 through the grommets 67 (see FIG. 2) of the seal member 66, respectively.

The motor connection portion 91 and the lead-in portion 92 are connected to each other at the terminal block 94 . The terminal block 94 is fastened to the pair of bosses 63 in the wire connection space 59a. The terminal block 94 connects the respective phase terminals of the motor connection portion 91 and the lead-in portion 92 .

The battery 6 is arranged below the seat 4 as shown in FIG. At least part of the PCU 80 is arranged below the battery 6 . In this embodiment, a pair of batteries 6 are arranged in the front and rear, and the PCU 80 is arranged below the battery 6 in front. All of the batteries 6 are formed in a rectangular parallelepiped shape and have the same configuration. The battery 6 is arranged such that the top surface on which the handle is provided is located above the bottom surface on which the terminals are provided, and two of the four side surfaces face outward in the vehicle width direction. The battery 6 is formed in a rectangular shape with a top surface and a bottom surface positioned at both ends in the longitudinal direction when viewed from the side of the vehicle. The battery 6 is arranged upwardly rearward so that its longitudinal direction is inclined in the front-rear direction with respect to the up-down direction when viewed from the side of the vehicle. The pair of batteries 6 are arranged parallel to each other, and arranged so that the bottom surface of the rear battery 6 is positioned higher than the bottom surface of the front battery 6 . Thereby, the batteries 6 are arranged so that the imaginary straight line L1 circumscribing the pair of batteries 6 from below extends rearward and upward in a side view. The pair of batteries 6 are connected in series and electrically connected to the PCU 80 via wires (not shown). In this case, battery 6 may be connected to PCU 80 via a junction box.

As described above, the motorcycle 1 of this embodiment includes the PCU 80 fixed to the link member 70. According to this configuration, the space around the link member 70, which can be a dead space between the power unit 41 and the vehicle body frame 20, is effectively used as a space for arranging the PCU 80, while the PCU is arranged on the vehicle body side such as inside the center tunnel. Since the PCU 80 is closer to the motor 44 than in the configuration shown in FIG.

Also, the PCU 80 is fixed to the upper surface 73 a of the first link arm 73 of the link member 70 . According to this configuration, the link member 70 covers the lower surface of the PCU 80 to protect the PCU 80 from flying objects such as stepping stones flying from below.

An elastic member 87 is interposed between the PCU 80 and the link member 70 . According to this configuration, vibration and deformation of link member 70 can be absorbed by elastic member 87 and transmitted to PCU 80 can be suppressed. Thereby, application of external force to the PCU 80 can be suppressed.

A housing 81 of the PCU 80 is vertically coupled to the link member 70 . The control board 82 is arranged on the opposite side of the housing 81 from the fastening portion 84 in the vertical direction. According to this configuration, compared to the configuration in which the control board 82 is arranged on the same side of the housing 81 as the fastening portion 84 , the stress applied to the PCU 80 from the coupling portion between the housing 81 and the link member 70 is reduced by the control board 82 . It can be difficult to tell

The three-phase line 90 includes a motor connection portion 91 connected to the stator of the motor 44 and an introduction portion 92 introduced from the PCU 80 into the swing frame 50 and connected to the motor connection portion 91 . The swing frame 50 includes a connection space 59a in which a connection portion between the motor connection portion 91 and the lead-in portion 92 is arranged, and an introduction space that communicates with the outside of the swing frame 50 and into which the lead-in portion 92 is introduced from the outside of the swing frame 50. 59b and a partition wall 62 that divides into. The introduction portion 92 is inserted through the partition wall 62 via the seal member 66 . According to this configuration, when the three-phase line 90 is drawn into the connection space 59a, the introduction portion 92 of the three-phase line 90 is separated from the introduction space 59b communicating with the outside while the connection space 59a is separated from the connection space 59b. 59a. As a result, it is possible to prevent the connection portions of the motor connection portion 91 and the introduction portion 92 from being exposed to water.

The PCU 80 has cooling fins 83 provided on its outer surface and extending in the front-rear direction. According to this configuration, it is possible to allow running wind to pass through the gaps between the cooling fins 83, so that the air-cooling effect of the PCU 80 can be improved.

At least part of the PCU 80 is arranged below the battery 6 . The battery 6 is arranged with its longitudinal direction inclined in the front-rear direction with respect to the up-down direction. According to this configuration, it is possible to secure a clearance for the PCU 80 that is displaced as the link member 70 swings, compared to the configuration in which the battery 6 is arranged with the longitudinal direction of the battery 6 extending along the vertical direction. Therefore, the arrangement of the battery 6 can be adapted to the configuration in which the PCU 80 is fixed to the link member 70 .

[Second embodiment]
Next, a second embodiment will be described with reference to FIG. FIG. 7 is a left side view showing the motorcycle of the second embodiment.
As shown in FIG. 7, in the motorcycle 1A of the second embodiment, the pair of batteries 6 under the seat 4 are arranged so that the longitudinal direction inclines in the front-rear direction with respect to the up-down direction when viewed from the side of the vehicle. It differs from the first embodiment in that Configurations other than those described below are the same as those of the first embodiment.

The pair of batteries 6 are arranged parallel to each other, and arranged such that the bottom surface of the rear battery 6 is positioned higher than the bottom surface of the front battery 6 . Thereby, the batteries 6 are arranged so that the imaginary straight line L2 circumscribing the pair of batteries 6 from below in a side view extends rearward and upward. According to this configuration, similarly to the first embodiment, the arrangement of the battery 6 can be adapted to the configuration in which the PCU 80 is fixed to the link member 70 .

It should be noted that the present invention is not limited to the above-described embodiments described with reference to the drawings, and various modifications are conceivable within its technical scope.
For example, in the above embodiments, the present invention is applied to motorcycles, but the scope of application of the present invention is not limited to this. INDUSTRIAL APPLICABILITY The present invention can be applied to all saddle-riding vehicles, including motorcycles and tricycles, in which a driver straddles the vehicle body. Moreover, the present invention may be applied not only to an electric vehicle having only a motor as a power source as in the above embodiment, but also to an electric hybrid vehicle having an engine and a motor as power sources.

Also, in the above embodiment, the PCU 80 is arranged above the link member 70, but the configuration is not limited to this. The PCU may be arranged below the link member, or may be arranged so as to be sandwiched from both sides in the vehicle width direction by the link member.

In addition, in the above embodiment, a rubber bush externally inserted on the fastening member 86 is interposed as an elastic member between the PCU 80 and the link member 70, but the configuration of the elastic member is not limited to this. The elastic member may be arranged, for example, so as to be sandwiched between the bottom surface of the housing of the PCU and the link member.

Also, in the above embodiment, the PCU 80 is exposed downward through the space between the pair of first link arms 73 of the link member 70, but the configuration is not limited to this. For example, the link member may further include a member that covers the PCU from below in addition to the link arm.

Also, in the above embodiment, the partition wall 62 in the swing frame 50 is provided with the seal member 66, but the configuration is not limited to this. For example, a seal member may be arranged to close the opening at the front end of the swing frame.

In addition, it is possible to appropriately replace the constituent elements in the above-described embodiment with well-known constituent elements within the scope of the present invention.

1...Motorcycle (saddle type vehicle) 4...Seat 6...Battery 20...Body frame 41...Power unit 44...Motor 50...Swing frame (case) 59a...Connection space 59b...Introduction space 62...Partition wall 66...Seal member 70... Link member 73a...Top surface 80...PCU (control unit) 81...Housing 82...Control board 83...Cooling fin 87...Elastic member 90...Three-phase wire (electric wire) 91...Motor connection part 92...Introduction part

Claims

a vehicle body frame (20);
a power unit (41) having a motor (44) and a case (50) housing the motor (44);
a link member (70) swingably connecting the body frame (20) and the case (50);
a control unit (80) connected to the motor (44) via an electric wire (90) and fixed to the link member (70);
A saddle-riding vehicle.
The control unit (80) is fixed to the upper surface (73a) of the link member (70),
A straddle-type vehicle according to claim 1.
The control unit (80) is fastened to the link member (70),
An elastic member (87) is interposed between the control unit (80) and the link member (70),
A straddle-type vehicle according to claim 1 or 2.
The control unit (80) comprises a housing (81) and a control board (82) housed in the housing (81),
The housing (81) is coupled to the link member (70) in a predetermined direction,
The control board (82) is arranged on the side of the housing (81) opposite to the coupling portion with the link member (70) in the predetermined direction,
A straddle-type vehicle according to any one of claims 1 to 3.
The electric wire (90) is
a motor connection (91) connected to the stator of the motor (44);
an introduction portion (92) introduced into the case (50) from the control unit (80) and connected to the motor connection portion (91);
with
The case (50) communicates with a wire connection space (59a) in which a wire connection portion between the motor connection portion (91) and the lead-in portion (92) is arranged, and the outside of the case (50). (92) is provided with an introduction space (59b) introduced from the outside of the case (50) and a partition wall (62) partitioned into,
The introducing portion (92) is inserted through the partition wall (62) via a sealing member (66),
A straddle-type vehicle according to any one of claims 1 to 4.
The control unit (80) includes cooling fins (83) provided on the outer surface and extending along the longitudinal direction of the vehicle.
A straddle-type vehicle according to any one of claims 1 to 5.
a seat (4) supported by the vehicle body frame (20);
a battery (6) arranged below the seat (4);
further comprising
at least part of the control unit (80) is arranged below the battery (6);
The battery (6) is arranged with its longitudinal direction inclined in the longitudinal direction with respect to the vertical direction of the vehicle.
A straddle-type vehicle according to any one of claims 1 to 6.