TWI773195B - Electrical connection structure - Google Patents

Abstract

The present invention provides an electrical connection structure comprising: a first connector 80 having a first connection terminal 82; and a second connector 50 having a second connection terminal 52; The two connectors 50 are plugged and unplugged, so that the first connection terminal 82 and the second connection terminal 52 are abutted and separated, and the electrical connection between the first connector 80 and the second connector 50 is connected and disconnected, and the first connector 80 The direction in which the second connector 50 is inserted and pulled out is different from the direction in which the first connection terminal 82 and the second connection terminal 52 abut and separate. The electrical connection between the first connector 80 and the second connector 50 can be easily and surely connected without being fastened by a fastening member, and the mutual connection between the electrical contact parts can be reduced when the electrical contact parts are inserted and pulled out. Wear caused by friction, reduce electrical connection loss.

Description

Electrical connection structure

The present invention relates to a removable electrical connection structure.

Conventionally, for example, in the connection of the PCU (Power Control Unit, power control unit) and the battery connector, or the connection method of the motor and the PCU, in the detachable electrical connection structure, a fastening member such as a bolt is used. A method of connecting a circular terminal on one side to a receiving side terminal on the other side. However, in this method, it takes a lot of time and effort to fasten a plurality of bolt fastening parts, which increases the cost.

In order to solve this problem, patent document 1 or patent document 2 has been disclosed as a method for simple and reliable connection in the structure in which the above-mentioned electrical components are electrically connected to each other without being fastened by a fastening member. Electrical connection structure utilizing magnets.

Patent Document 1 discloses a configuration in which magnets are respectively arranged in a pair of connectors having terminals having electrical connection portions so as to obtain an attractive force. According to this configuration, although the connection can be surely connected and the connection can be surely maintained, on the other hand, when the terminal of the electrical contact portion is inserted and removed, the contact resistance gradually increases due to the abrasion of the electrical contact portion, which may cause Electrical connection loss. In addition, the magnetic attraction force does not act on the connection itself of the electrical contact portion due to the separated arrangement of the electrical contact portion and the magnet portion. From the viewpoint of the connection of the electrical contact portion, it is considered that there is no magnetic force A fully functioning subject. Patent Document 2 similarly discloses a configuration in which a magnet assists the fitting of the connectors, but when releasing the connectors from each other, they must be pulled out against the attractive force generated by the magnetic force, so the operability is poor. In addition, since it is pulled with a strong force, there is a possibility that a large friction will be generated on the terminal portion. [Prior Art Literature] [Patent Literature]

Patent Document 1: Japanese Patent Laid-Open No. 2019-016471 Patent Document 2: Japanese Patent Laid-Open No. 2002-237354

(The problem that the invention intends to solve)

The present invention has been made in view of these conventional techniques, and its subject is to provide an electrical connection structure which can be easily and surely connected without being fastened by a fastening member, and which can reduce the trouble when the connector is inserted and pulled out. The wear caused by the friction between the electrical contact parts reduces the electrical connection loss. (Technical means to solve problems)

In order to solve the above-mentioned problems, the present invention is an electrical connection structure characterized by comprising: a first connector having a first connection terminal; and a second connector having a second connection terminal; A connector is inserted into and pulled out from the second connector, so that the first connection terminal and the second connection terminal are abutted and separated, and the electrical connection between the first connector and the second connector is connected and disconnected, The direction in which the first connector is inserted and pulled toward the second connector is different from the direction in which the first connection terminal and the second connection terminal abut and separate. The movement of the connector electrically connects the first connector and the second connector.

According to the above configuration, when the first connector is inserted into and pulled out from the second connector, the first connection terminal and the second connection terminal are brought into contact with and separated from each other, and the electrical connection between the first connector and the second connector is connected. , release, the direction of the first connector toward the second connector is different from the direction in which the first connection terminal and the second connection terminal abut and separate. Therefore, it can be fastened without using a fastening member, and it is simple and easy to use. It can be connected reliably, and can reduce the wear caused by the friction between the electrical contact parts of the first connector and the second connector, that is, the mutual friction between the connecting terminals, thereby reducing the electrical connection loss.

According to a preferred embodiment of the present invention, the second connector includes: a movement restricting member that restricts movement of the first connector; and a second connector member that is swingably supported by the movement restricting member; the above The second connector member includes: a second connection terminal arrangement portion on which the second connection terminal is arranged; and an arm portion that protrudes toward the arrangement surface side of the second connection terminal of the second connection terminal arrangement portion and receives the second connection terminal. The load of the first connector; the second connector member is swingably supported by the movement restricting member through the support portion provided at the position where the second connection terminal arrangement portion and the arm portion intersect, when the first When the movement of the connector is restricted by the movement restricting member, the second connector member is rotated by the load of the first connector, and the first connector and the second connector (50) are electrically connected.

According to the above configuration, the load of the first connector is applied to the wrist of the second connector member, the second connector member is rotated and the first connection terminal of the first connector is electrically connected to the second connection terminal of the second connector, Therefore, the simple structure can reduce the friction between the first connection terminal and the second connection terminal to reduce wear and tear, and further reduce the electrical connection loss.

According to a preferred embodiment of the present invention, the first connector has a protruding portion that protrudes toward the second connector side when the first connecting terminal and the second connecting terminal are connected, and the protruding portion protrudes toward the second connector. The second connector includes a concave portion, which is engaged with the convex portion in the connected state of the first connection terminal and the second connection terminal, and the convex portion is pulled from the second connector in the connected state. When the first connector is pulled out, the second connector member is rotated in a direction in which the first connection terminal and the second connection terminal are separated.

According to the above configuration, when the first connector is pulled out from the second connector, the second connector member is rotated in the direction in which the first connection terminal and the second connection terminal are separated by the protrusion of the first connector member, Therefore, the electrodes of the electrical contact portion, that is, the first connection terminal and the second connection terminal can be opened without touching and rubbing, and the abrasion of the first connection terminal and the second connection terminal can be reduced.

According to a preferred embodiment of the present invention, the first connector includes a first magnetic attraction member, the second connector includes a second magnetic attraction member, and the first magnetic attraction member and the second magnetic attraction member are arranged such that When the first connector and the second connector are connected, a magnetic field is generated and attracted to each other, the first magnetic attraction member is arranged on the first connection terminal arrangement portion, and the second magnetic attraction member is arranged on the second connection terminal Configuration Department.

According to the above configuration, since the magnetic attraction member is provided in the terminal arrangement portion where the connection terminals are provided, a magnetic force acts in the direction of connecting the connection terminals to each other in the vicinity of the connection terminals, and electrical connection can be more reliably achieved.

According to a preferred embodiment of the present invention, the first connection terminal is arranged to be sandwiched by the first magnetic attraction member, and the second connection terminal is arranged to be sandwiched by the second magnetic attraction member.

According to the above configuration, since the magnetic force acts by bringing the connection terminals into contact with each other at the contact surfaces, the connection terminal electrodes do not come into contact with each other on one side, and it is possible to reliably perform electrical connection.

According to a preferred embodiment of the present invention, it includes: a third magnetic attraction member located on the opposite side of the first connector with respect to the second connector; the third magnetic attraction member is attached to the first connector When the connector and the second connector are not connected, they are mutually pulled with the second magnetic attraction member.

According to the above configuration, when the first connector is pulled out from the second connector, the second connector member can be maintained in the open state.

According to a preferred embodiment of the present invention, an over-rotation preventing structure for preventing over-rotation is provided on the back side of the second connector.

According to the above-described configuration, when the first connector is inserted into the second connector, the second connector member can be maintained in a rotatable proper position.

According to a preferred embodiment of the present invention, the first connector is disposed on the control device, and the second connector is connected to the connector of the battery.

According to the above configuration, the control device can be electrically connected to the connector connected to the battery easily and reliably. (Compared to the efficacy of the prior art)

According to the electrical connection structure of the present invention, it is possible to connect easily and surely without using the fastening member, and it is possible to reduce the abrasion caused by the friction between the electrical contact parts when the connector is inserted and removed, thereby reducing the electrical connection loss.

1 to 11, an electrical connection structure according to an embodiment of the present invention will be described. The electrical connection structure in this embodiment is used for a saddle-riding type electric vehicle 1 . In addition, the directions such as front, rear, left, right, up, and down described in this specification are determined according to the vehicle direction of the straddle-type vehicle such as the electric vehicle 1 . In addition, the arrow FR in the figure represents the front of the vehicle, LH represents the left side of the vehicle, RH represents the right side of the vehicle, and UP represents the upper side of the vehicle.

FIG. 1 is a left side view of an electric vehicle 1 according to the present embodiment. In addition, in the following description, the front-rear, left-right, and up-down directions are described with reference to the viewing direction of the occupant who is seated on the seat 17 of the electric vehicle 1 .

The electric vehicle 1 is an electric scooter having a pedal portion 16 of a low chassis, and the rear wheel 23 is rotationally driven by the driving force of a motor 62 (refer to FIG. 2 ) built in a swing arm 40 that pivotally supports the rear wheel 23 , Thereby, the electric vehicle 1 is made to travel. Furthermore, the electric vehicle 1 of the present embodiment is not limited to the electric scooter shown in FIG. 1 , but can also be applied to various electric straddle-type vehicles driven by the motor 62 . In the following description, the electric vehicle 1 of the scooter type will be described.

The electric vehicle 1 includes a vehicle body frame 2 and a synthetic resin vehicle body cover 10 covering the vehicle body frame 2 . The vehicle body frame 2 is composed of a head pipe 3 at the front end, a lower pipe 4 extending obliquely rearward from the head pipe 3 , a pair of left and right bottom frame portions 5 extending backward from the rear end of the down pipe 4 , and the bottom frame portion. The rear end 5 is formed by a side frame portion 6 extending obliquely upward and rearward. The side frame portions 6 are constituted by upright portions 7 extending obliquely upward and rearward from a pair of left and right bottom frame portions 5 , and rear frames 8 extending rearward from a pair of left and right upright portions 7 . The rear ends of the pair of left and right rear frames 8 are connected by tail pipe portions 9 .

A front fork 11 is attached to the head pipe 3 so as to be maneuverable. A handlebar 13 is attached to the upper portion of the front fork 11 via the steering rod 12 . A front wheel 14 is mounted on the lower end of the front fork 11 . The front fork 11 is provided with a front baffle 15 which covers the front wheel 14 from above.

Between the bottom frame portion 5 and the side frame portion 6, a connection support portion 20 including a pivot bracket 20a is provided. The connection support portion 20 supports a pivot shaft 21 extending in the left-right direction (vehicle width direction) of the electric vehicle 1 . The front end (one end) of the swing arm 40 is pivotally supported on the pivot shaft 21 . It extends from the pivot shaft 21 to the left side of the rear wheel 23 along the front-rear direction of the electric vehicle 1 . The rear end (the other end) of the swing arm 40 supports the rear wheel 23 .

The swing arm 40 incorporates the motor 62 in the form of arranging the motor 62 on the left side of the rear wheel 23 . Therefore, the swing arm 40 is configured as a swing type power unit. The rear shock absorber 24 is connected between the rear end portion of the swing arm 40 and the left rear frame 8 . In addition, a rear baffle 25 that covers the rear wheel 23 from above is attached to the rear frame 8 . Further, another flap 26 is attached to the swing arm 40 , which covers the rear wheel 23 from above between the rear flap 25 and the rear wheel 23 and can swing together with the swing arm 40 .

The rear frame 8 supports the seat 17 on which the occupant sits from the lower side. Between the seat 17 and the pivot shaft 21 , the battery 29 of the electric vehicle 1 is disposed in the space between the pair of left and right upright portions 7 . The battery 29 is supported by a pair of left and right uprights 7 , the rear frame 8 , and a pipe 18 connecting the uprights 7 in the front.

A PCU (power control unit) 75 (refer to FIG. 2 ) that is built into the swing arm 40 as an electronic component is disposed in front of the rear wheel 23 and obliquely below the battery 29 . The PCU 75 is constituted by including an inverter or the like, which converts the DC power supplied from the battery 29 through the power supply line 58 into AC power, and supplies the converted AC power to the motor 62 . In addition, when the power of the motor 62 is regenerated, the PCU 75 converts the AC power generated by the motor 62 into DC power, and charges the battery 29 .

The vehicle body cover 10 covers the vehicle body frame 2 and the like, and includes a front cover 10a, a handle cover 10b, a leg shield 10c, a pedal side cover 10d, a seat under cover 10e, a seat under cover 10e, and the like. The front cover 10a covers the front end portion of the vehicle body frame 2 such as the head pipe 3 from the front. The handle cover 10b covers the left and right central portions of the handle 13 above the front cover 10a. The leg shield 10c is connected to the front cover 10a, and covers the head pipe 3 and the down pipe 4 from the rear. The under-seat cover 10e covers the space below the seat 17 from the front.

The pair of left and right pedal side cover 10d is connected to the leg shield 10c and the seat under cover 10e, and covers the pair of left and right bottom frame parts 5 from the left and right sides. The seat under cover 10e is connected to the rear edge portion of the seat under cover 10e. A tripod 28 is disposed on the side of the swing arm 40 .

The swing arm 40 is composed of a swing arm casing 41 and a swing arm cover 42 covering the swing arm casing 41 . FIG. 1 shows a state in which the swing arm cover 42 is attached to the swing arm case 41, and FIG. 2 shows a state in which the swing arm cover 42 is removed.

As shown in FIG. 2 , the motor PCU unit 60 is accommodated in the unit accommodating chamber 41 a in the swing arm housing 41 . The motor 62 and the PCU 75 are electrically connected by the power supply line 70 of the three-phase line, and are integrated by the unit base 61 to constitute the motor PCU unit 60 .

As shown in FIG. 3 , the motor 62 of the motor PCU unit 60 is composed of a motor case 63 including a part of the unit base 61 and a motor housing 64 , a stator 65 and a rotor 66 incorporated therein as a drive unit. The motor housing 64 is fixed to the unit base 61 with bolts 71 . The motor shaft 67 that rotates integrally with the rotor 66 is rotatably supported by the unit base 61 and the motor cover 64 via a bearing 69 . The right end portion 67R of the motor shaft 67 is arranged to protrude rightward of the motor case 63 . A motor gear 68 is formed on the right end portion 67R.

The speed reducer 43 is disposed in the speed reducer accommodating chamber 41 d constituted by the swing arm case 41 and the gear housing cover 35 . The intermediate shaft 44 of the reduction gear 43 is rotatably supported by the bearing 48 , and the intermediate gear 45 attached to the intermediate shaft 44 meshes with the motor gear 68 of the motor shaft 67 . The gear portion 44a provided on the intermediate shaft 44 is engaged with the output gear 46 mounted on the axle 23a of the rear wheel 23, and the power system from the motor 62 is decelerated through the speed reducer 43 and transmitted to the axle 23a of the rear wheel 23. The rear wheel 23 is It rotates together with the rim 23b fixed integrally with the axle 23a.

As shown in FIG. 4 , the PCU 75 of the motor PCU unit 60 is provided with a first connector 80 on the end face on the side where the swing arm housing 41 is inserted.

As shown in FIG. 2 , when viewed from the left side of the vehicle, the swing arm housing 41 has a substantially circular shape where the motor 62 is accommodated, and a substantially rectangular shape where the PCU 75 is accommodated. As shown in FIGS. 2 , 3 and 6 , the unit housing chamber 41 a for housing the swing arm housing 41 of the motor PCU unit 60 is constituted by a peripheral wall portion 41 b and a bottom portion 41 c surrounded by the peripheral wall portion 41 b at a predetermined height. As shown in FIG. 2 , the peripheral wall portion 41b is composed of a front wall portion 41b ₁ located in the front, a pair of side wall portions 41b ₂ extending substantially at right angles from both ends of the front wall portion 41b ₁ , and a curved line connecting the two side wall portions 41b ₂ The curved wall portion 41b ₃ is constituted. The front wall portion 41b ₁ of the rocker arm housing 41 is provided with a second connector 50 which is connected to and disconnected from the first connector 80 .

When the motor PCU unit 60 is mounted on the swing arm housing 41 , the first connector 80 provided on the end of the PCU 75 opposite to the motor 62 is mounted on the second connector provided in the rocker arm housing 41 50 is electrically connected, and the motor gear 68 provided on the motor shaft 67 protruding from the right side of the motor housing 63 of the motor PCU unit 60 is slid to the intermediate gear 45 of the speed reducer 43 provided in the swing arm housing 41 to be By engaging these, the motor 62 and the reduction gear 43 are connected. The swing arm housing 41 functions as a member that restricts the movement of the motor PCU unit 60 . After that, as shown in FIGS. 2 and 3 , the motor PCU unit 60 is fixed to the swing arm case 41 with bolts 72 .

In this way, by attaching and detaching the motor PCU unit 60 , the second connector 50 provided in the swing arm housing 41 is connected to and disconnected from the first connector 80 provided in the motor PCU unit 60 . The second connector 50 is electrically connected to the battery 29 via the power supply line 58 , and when the first connector 80 is connected to the second connector 50 , power is supplied to the PCU 75 and the motor 62 .

Next, the electrical connection structure of the first connector 80 provided in the motor PCU unit 60 and the second connector 50 provided in the swing arm housing 41 will be described in detail.

As shown in FIG. 2 , the PCU 75 of the motor PCU unit 60 has a box-like shape, and a power supply wire 70 is attached to one end thereof, and is electrically connected to the motor 62 through the power supply wire 70 .

As shown in FIGS. 4 and 5 , the other end of the PCU 75 is provided with a first connector 80 . The first connector 80 includes a rectangular plate-shaped base 81 provided to protrude from the PCU 75 . A first connection terminal 82 that is an electrode is mounted on the surface of the base 81 on the opposite side of the swing arm case 41 . In the present embodiment, two first connection terminals 82 are provided, but they may be one or a plurality of two or more. On both sides of the first connection terminal 82, a first magnet 83 serving as a first magnetic adsorption member is fixed.

As shown in FIG. 4 , the second connector 50 provided in the swing arm housing 41 includes a second connector member 51 and a support shaft 55 that functions as a support portion that swingably supports the second connector member 51 .

As shown in FIG. 4 , the second connector member 51 is formed to have a width similar to that of the seat 81 of the first connector 80 . As shown in FIG. 6, the 2nd connector member 51 is provided with the 2nd connection terminal arrangement|positioning part 51a and the arm part 51b, and is formed in the substantially L shape in side view.

As shown in FIG. 5 , two second connection terminals 52 are mounted on the second connection terminal arrangement portion 51 a of the second connector member 51 at positions corresponding to the first connection terminals 82 of the first connector 80 . On both sides of the second connection terminal 52, a second magnet 53 serving as a second magnetic attraction member is installed. When the first connector 80 is connected to the second connector 50 , the second connection terminal 52 and the second magnet 53 are respectively disposed at positions corresponding to the first connection terminal 82 and the first magnet 83 . A power supply line 58 is connected to the second connection terminal 52 . As shown in FIGS. 4 and 6 , the power supply wire 58 passes through the second connector member 51 and penetrates through the front wall portion 41b ₁ of the swing arm case 41 to be connected to the battery 29 .

As shown in FIG. 6, the arm portion 51b of the second connector member 51 is formed so as to protrude from the second connection terminal arrangement portion 51a toward the arrangement surface side of the second connection terminal 52, and the first connector 80 is inserted into the second connection terminal 52. When the connector 50 is used, it bears the load of the first connector 80 .

The second connector member 51 is formed with an insertion hole 51d through which the support shaft 55 is inserted at a position where the second connection terminal arrangement portion 51a and the arm portion 51b intersect. As shown in FIG. 5 , the support shafts 55 are attached to both side wall portions 41b ₂ of the rocker arm case 41 , and the second connector member 51 is swingably supported relative to the rocker arm case 41 . The support shaft 55 is fixed to one pair of side wall portions 41b ₂ of the swing arm case 41 so as to be parallel to the front wall portion 41b ₁ , and the second connector member 51 is swingably supported by the swing arm case 41 .

As shown in FIG. 6 , on the inner wall surface of the front wall portion 41b1 _of the rocker arm housing 41, a braking member 56 is protrudingly provided, and the braking member 56 is used to prevent the excessive rotation of the second connector member 51 from being excessive Rotation prevention structure. The stopper members 56 are pin-shaped projections, and as shown in FIG. 5 , in this embodiment, they are provided at three locations, but the number can be appropriately changed.

As shown in FIG. 6 , a third magnet 57 serving as a third magnetic attraction member is disposed adjacent to the braking member 56 . The front end of the braking member 56 is formed as a slope for the purpose of stably abutting the second connector member 51 when the second connector member 51 is rotated and abutted. The third magnet 57 is disposed at a position where it is pulled with the second magnet 53 when the second connector member 51 is rotated to abut against the braking member 56 .

As shown in FIG. 8 , the first connector 80 is formed with a convex portion 75 a that protrudes toward the second connector side when the first connection terminal 82 and the second connection terminal 52 are connected. The convex portion 75a is formed on the insertion side of the PCU 75 toward the swing arm housing 41, that is, the front end. The second connection terminal arrangement portion 51a of the second connector 50 includes a concave portion 51c that engages with the convex portion 75a in a state where the first connection terminal 82 and the second connection terminal 52 are connected, and the convex portion 75a is formed such that A shape in which the second connector member 51 is rotated in a direction to separate the first connection terminal 82 from the second connection terminal 52 when the first connector 80 is pulled from the second connector 50 in the connected state.

Next, the operation of connecting and releasing the electrical connection between the first connector 80 and the second connector 50 by plugging and unplugging the first connector 80 into the second connector 50 will be described with reference to FIGS. 4 to 11 . .

First, the operation of electrically connecting the first connector 80 and the second connector 50 will be described. As shown in FIGS. 4 and 6 , in order to accommodate the motor PCU unit 60 in the unit accommodating chamber 41 a of the swing arm housing 41 , the first connector 80 is moved toward the direction of approaching the second connector 50 . As shown in FIG. 7 , the base 81 of the first connector 80 abuts against the wrist 51 b of the second connector member 51 , and the wrist 51 b bears the load from the first connector 80 . The second connector member 51 starts to rotate in a direction approaching the first connector 80 .

As shown in FIG. 2 , the motor PCU unit 60 is fitted into the swing arm housing 41 , and, as shown in FIG. 3 , when the motor shaft 67 of the motor 62 is connected to the speed reducer 43 , the movement of the motor PCU unit 60 is restricted. , the movement of the first connector 80 is restricted. When the movement of the first connector 80 is restricted, as shown in FIG. 8 , the first connection terminal 82 and the second connection terminal 52 are in contact with each other to be connected, and the first magnet 83 and the second magnet The 53 series is magnetically attracted and firmly attached.

The operation of releasing the electrical connection between the first connector 80 and the second connector 50 will be described below. As shown in FIG. 9 , when the electrical connection between the first connector 80 and the second connector 50 is in a connected state, the pulling of the first connector 80 is started.

As shown in FIG. 10 , when the first connector 80 starts to move, the convex portion 75a provided on the PCU 75 pushes the wall portion 51c ₁ of the concave portion 51c of the second connector member 51 against the first magnet 83 and the second magnet The attractive force of 53 makes the second connector member 51 start to rotate in the direction of separation from the first connection terminal 82 of the first connector 80 and the first magnet 83 .

As shown in FIG. 11, when the first connector 80 is separated from the second connector 50 and the second connector member 51 is rotated toward the back side, the back side of the second connector member 51 abuts against the stopper member 56, and the The two connector members 51 stop at a predetermined angle without further rotation. The predetermined angle at which the second connector member 51 stops is set such that, when the first connector 80 is inserted into the second connector 50, the wrist portion 51b of the second connector member 51 can receive the force from the first The angle of the load bearing of the connector 80 .

When the rotation of the second connector member 51 is stopped by the braking member 56, the third magnet 57 provided on the front wall portion 41b1 _of the swing arm housing 41 and the second magnet 53 of the second connector member 51 attract each other, The second connector member 51 is maintained at a predetermined angle. In this way, since the second connector member 51 is maintained at a predetermined position, when the first connector 80 is next connected to the second connector 50, the wrist portion 51b of the second connector member 51 can withstand the pressure from the first connector 51. The load of a connector 80 can thus surely connect the first connector 80 to the second connector 50 .

As shown in FIGS. 2 , 4 and 6 , the insertion and removal of the motor PCU unit 60 toward the swing arm housing 41 is set in the vehicle front-rear direction. On the other hand, as shown in FIGS. 7 and 8 , the second connection terminal 52 moves relative to the first connection terminal 82 in the direction of approaching and separating in the left-right direction of the vehicle. Therefore, the first connector 80 moves toward The insertion and removal direction of the second connector 50 is different from the direction in which the first connection terminal 82 and the second connection terminal 52 abut and separate from each other.

Since the electrical connection structure of one embodiment of the present invention is constructed as described above, the following effects can be achieved.

The electrical connection structure of the present embodiment includes: a first connector 80 having a first connection terminal 82; and a second connector 50 having a second connection terminal 52; 50 is inserted and pulled out, so that the first connection terminal 82 and the second connection terminal 52 abut and separate, and the electrical connection between the first connector 80 and the second connector 50 is connected and disconnected, and the first connector 80 faces the first connector 80. The direction in which the two connectors 50 are inserted and pulled out is different from the direction in which the first connection terminal 82 and the second connection terminal 52 abut and separate. The first connector 80 is electrically connected to the second connector 50 , so it can be easily and surely connected without bolts, and the electrical contacts when the first connector 80 and the second connector 50 are plugged and unplugged can be reduced. The part is the wear caused by the friction between the first connection terminal 82 and the second connection terminal 52, thereby reducing the electrical connection loss.

Further, the second connector 50 includes a rocker arm housing 41 as a movement restricting member that restricts the movement of the first connector 80 , and a second connector member 51 that is swingably supported by the rocker arm housing 41 ; The second connector member 51 includes a second connection terminal arrangement portion 51a on which the second connection terminal 52 is arranged, and an arm portion 51b protruding toward the arrangement surface side of the second connection terminal 52 of the second connection terminal arrangement portion 51a and bear the load of the first connector 80; the second connector member 51 is swingably supported by the swing arm shell by being provided at the position where the second connection terminal arrangement portion 51a and the wrist portion 51b intersect as the support shaft 55 of the support portion. The body 41 is supported; when the first connector 80 is in a state where the movement of the first connector 80 is restricted by the rocker arm housing 41, the second connector member 51 is rotated by the load of the first connector 80, and the first connector 80 and the second connector The connector 50 is electrically connected, therefore, the friction between the first connection terminal and the second connection terminal can be reduced with a simple structure to reduce wear and tear, and the loss of electrical connection can be further reduced.

The first connector 80 has a protruding portion 75a that protrudes toward the second connector 50 side in the connected state of the first connection terminal 82 and the second connection terminal 52, and the second connector 50 has a recessed portion 51c , the concave portion 51c is in the connection state of the first connection terminal 82 and the second connection terminal 52, and is engaged with the convex portion 75a, and the convex portion 75a is pulled from the second connector 50 in the connected state to pull the first connection When the connector 80 is installed, the second connector member 51 is rotated in the direction in which the first connection terminal 82 and the second connection terminal 52 are separated, so that the electrodes of the electrical contact portion, that is, the first connection terminal 82 and the second connection terminal 52 can be made to rotate. It does not touch and rub to open, and the wear of the first connection terminal 82 and the second connection terminal 52 can be reduced.

The first connector 80 includes a first magnet 83 , the second connector 50 includes a second magnet 53 , and the first magnet 83 and the second magnet 53 are arranged so as to be generated when the first connector 80 and the second connector 50 are connected The magnetic field attracts each other, the first magnet 83 is installed in the first connection terminal arrangement portion 81a, and the second magnet 53 is arranged in the second connection terminal arrangement portion 51a, therefore, the magnetic force is applied to the first connection terminal 82 and the second connection terminal 52 In the vicinity, it acts in the direction of connecting the first connection terminal 82 and the second connection terminal 52, so that the electrical connection can be more reliably achieved.

The first connection terminal 82 is arranged so as to be sandwiched by the first magnet 83, and the second connection terminal 52 is arranged so as to be sandwiched by the second magnet 53. Therefore, the first connection terminal 82 and the second connection terminal are connected via the first connection terminal 82. Since the surfaces of the 52 are in contact with each other and the magnetic force acts, the first connection terminal 82 and the second connection terminal 52 do not come into contact with each other on one side and can be reliably electrically connected.

It has a third magnet 57, which is located on the opposite side of the first connector 80 with respect to the second connector 50; the third magnet 57 is connected to the The two magnets 53 pull each other, so when the first connector 80 is pulled from the second connector 50, the second magnet 53 of the second connector is attracted by the third magnet 57, so that the second connector can be pulled The member 51 is maintained in an open state.

The rear side of the second connector 50 is provided with a stopper member 56 serving as an over-rotation preventing structure for preventing over-rotation. Therefore, when the first connector 80 is inserted into the second connector 50, the second connector member can be 51 is maintained in a proper position to withstand the load from the first connector 80 to rotate.

According to a preferred embodiment of the present invention, the first connector 80 is provided on the PCU 75, and the second connector 50 is connected to the connector of the battery 29, so that the PCU 75 can be electrically connected to the battery 29 easily and reliably. The connector to which the battery 29 is connected.

Although one embodiment of the present invention has been described above, the present invention is not limited to the above-mentioned embodiment, and various design changes can be made within the scope of the gist of the present invention, within the scope of the gist of the present invention, It certainly includes those that can be implemented in a variety of ways.

In the electrical connection structure of one embodiment of the present invention, although the second connector member 51 is rotated by the load of the first connector 80 being inserted into the second connector 50, the first connection terminal 82 is connected to the second connector 50. The connection terminals 52 are electrically connected, but for example, by inserting the first connector into the load of the second connector, a crank mechanism or a link mechanism is activated, and the first connector is connected to the first connector through these mechanisms. The directions of inserting the second connector are different, so that the second connector is moved parallel to the first connector, so that the electrical connection and disconnection are made. Furthermore, for convenience of description, the left and right arrangements in the embodiments shown in the drawings are described, but even if the left and right arrangements are different, they are also included in the present invention as long as they are within the scope of the gist of the present invention.

1: Electric vehicle 2: Body frame 3: Head tube 4: Down tube 5: Bottom frame portion 6: Side frame portion 7: Upright portion 8: Rear frame 9: Tail pipe portion 10: Body cover 10a: Front Cover 10b: handle cover 10c: leg shield 10d: pedal side cover 10e: seat under cover 11: front fork 12: steering lever 13: handle 14: front wheel 15: front fender 16: pedal 17: seat 18: tube 20 : Connection support 20a: Pivot bracket 21: Pivot support 23: Rear wheel 23a: Axle 23b: Rim 24: Rear shock absorber 25: Tailgate 26: Bezel 28: Foot stand 29: Battery 35: Gear Case cover 40: Swing arm 41: Swing arm case (movement restricting member) 41a: Unit housing chamber 41b: Peripheral wall portion 41b ₁ : Front wall portion 41b ₂ : Side wall portion 41b ₃ : Curved wall portion 41c: Bottom portion 41d: Deceleration Machine housing chamber 42: Swing arm cover 43: Reduction gear 44: Intermediate shaft 44a: Gear portion 45: Intermediate gear 46: Output gear 48: Bearing 50: Second connector 51: Second connector member 51a: Second connection terminal Arrangement portion 51b: Arm portion 51c: Recessed portion 51c ₁ : Wall portion 51d: Insertion hole 52: Second connection terminal 53: Second magnet (second magnetic attraction member) 55: Support shaft (support portion) 56: Brake member ( Excessive rotation prevention structure) 57: Third magnet (third magnetic attraction member) 58: Power supply wire 60: Motor PCU unit 61: Unit base 62: Motor 63: Motor case 64: Motor cover 65: Stator 66: Rotor 67: Motor shaft 67R: Right end 68: Motor gear 69: Bearing 70: Power supply wire 71: Bolt 72: Bolt 75: PCU (control unit) 75a: Protrusion 80: First connector 81: Base 81a: First connection terminal arrangement Part 82: First connection terminal 83: First magnet (first magnetic attraction member)

1 is a right side view of a two-wheeled locomotive equipped with a motor PCU unit to which an electrical connection structure according to an embodiment of the present invention is applied. FIG. 2 is an enlarged view of the main part of FIG. 1 in a state in which the swing arm cover is removed. FIG. 3 is a cross-sectional view taken along arrow III-III of FIG. 2 . Fig. 4 is a view showing that the motor PCU unit is installed in the swing arm housing. Fig. 5 is a view of the second connector member viewed from the side of the swing arm housing. FIG. 6 is a cross-sectional view taken along arrow IV-IV of FIG. 4 . FIG. 7 is a view showing a state in which the base of the first connector touches the wrist of the second connector member. FIG. 8 is a state diagram showing the completion of connection of the first connector and the second connector. FIG. 9 is a view showing a state before the first connector is pulled from the second connector. FIG. 10 is a view showing a state in which the first connector starts to be pulled from the second connector, and the convex part of the first connector pushes the concave part of the second connector. FIG. 11 is a view showing a state in which the connection between the first connector and the second connector is released.

41: Swing arm housing (movement restricting member)

41a: Unit Containment Chamber

41b: Peripheral wall

41b ₁ : Front wall

41c: Bottom

50: Second connector

51: Second connector member

51a: second connection terminal arrangement part

51b: wrist

51c: Recess

51d: through hole

53: Second magnet (second magnetic attraction member)

55: Support shaft (support part)

56: Brake member (over-rotation prevention structure)

57: Third magnet (third magnetic attraction member)

58: Power supply line

60: Motor PCU unit

75: PCU (control unit)

75a: convex part

80: first connector

81: Pedestal

83: The first magnet (the first magnetic attraction member)

Claims (7)

An electrical connection structure, characterized in that it is provided with: a first connector (80) having a first connection terminal (82); and a second connector (50) having a second connection terminal (52); By inserting and unplugging the first connector (80) into the second connector (50), the first connection terminal (82) and the second connection terminal (52) are brought into contact with and separated, and the first connection terminal (82) is brought into contact with and separated from the second connection terminal (52). The electrical connection between a connector (80) and the second connector (50) is connected and disconnected, and the first connector (80) is connected to the first connection terminal in the direction in which the second connector (50) is inserted and removed. (82) The direction of contact and separation of the second connection terminal (52) is different from that of the second connection terminal (52). A connector (80) is electrically connected to the second connector (50), and the second connector (50) includes: a movement restricting member (41) that restricts movement of the first connector (80); and a second A connector member (51) is swingably supported by the movement restricting member (41); the second connector member (51) includes a second connection terminal arrangement portion (51a) on which the second connection terminal is arranged (52); and a wrist portion (51b), which protrudes toward the arrangement surface side of the second connection terminal (52) of the second connection terminal arrangement portion (51a) and bears the load of the first connector (80); The second connector member (51) is swingably supported by the movement restricting member ( 41), when the first connector (80) is in a state where the movement is restricted by the movement restricting member (41) When the second connector member (51) is rotated by the load of the first connector (80), the first connector (80) and the second connector (50) are electrically connected. The electrical connection structure according to claim 1, wherein the first connector (80) has a convex portion (75a), and the convex portion (75a) is connected to the first connection terminal (82) and the second connection terminal ( 52) in the connected state, the second connector (50) protrudes toward the side of the second connector (50), and the second connector (50) is provided with a concave portion (51c), and the concave portion (51c) is connected between the first connection terminal (82) and the first connection terminal (82). In the connected state of the two connection terminals (52), they are engaged with the protruding portion (75a), and the protruding portion (75a) is pulled from the second connector (50) in the connected state to pull the first connector ( 80), the second connector member (51) is rotated in a direction in which the first connection terminal (82) is separated from the second connection terminal (52). The electrical connection structure of claim 1, wherein the first connector (80) is provided with a first magnetic attraction member (83), the second connector (50) is provided with a second magnetic attraction member (53), and the first magnetic attraction member (53) is provided. The magnetic attraction member (83) and the second magnetic attraction member (53) are configured to generate a magnetic field and attract each other when the first connector (80) and the second connector (50) are connected, and the first connector (80) and the second connector (50) are connected to each other. The magnetic attraction member (83) is provided in the first connection terminal arrangement portion (81a), and the second magnetic attraction member (53) is provided in the second connection terminal arrangement portion (51a). The electrical connection structure of claim 3, wherein the first connection terminal (82) is arranged so as to be sandwiched by the first magnetic attraction member (83), and the second connection terminal (52) is arranged so as to be sandwiched by the first magnetic attraction member (83). The second magnetic attraction member (53) is sandwiched. The electrical connection structure of claim 3, further comprising: a third magnetic attraction member (57) located on the opposite side of the first connector (80) with respect to the second connector (50); the third magnetic attraction member (57) The magnetic attraction member (57) is connected to the first connector (80) and the second connector (50) in an unconnected state, and is mutually pulled with the second magnetic attraction member (53). The electrical connection structure of claim 5, wherein an over-rotation preventing structure ( 56 ) for preventing over-rotation is provided on the back side of the second connector ( 50 ). The electrical connection structure of claim 1, wherein the first connector (80) is provided on the control device (75), and the second connector (50) is a connector connected to the battery (29).

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