JP2021118128A - Adapter and battery system - Google Patents

Abstract

To provide an adapter and a battery system hard to drop off from a battery.SOLUTION: An adapter 6 is attached to a battery 5. The adapter 6 includes an attachment part 62 and a connection port 63. The attachment part 62 is attached to the battery 5 to maintain the predetermined attachment state of the adapter 6 to the battery 5. A connection part 91 of electrical equipment 9 is inserted into the connection port 63 in a connection direction. The attachment part 62 has a movement restriction part 69 that restricts the attached adapter 6 from moving in a disconnection direction D22 that is a direction opposite the connection direction D21.SELECTED DRAWING: Figure 4

Description

The present invention relates to an adapter and a battery system, and more particularly to an adapter mounted on a battery and a battery system including the adapter and the battery.

Patent Document 1 discloses an adapter that takes power from a battery pack of an electrically power assisted bicycle. The adapter described in Patent Document 1 has two connection terminals provided corresponding to the positional relationship between the two power output insertion ports so that the adapter is inserted into the two power output insertion ports of the battery pack. I have.

The adapter described in Patent Document 1 further has an erroneous connection prevention unit. The erroneous connection prevention unit does not interfere with the housing of the battery pack when the two connection terminals are correctly inserted into the power output insertion ports to be inserted respectively. Further, the erroneous connection prevention unit interferes with the housing of the battery pack when the two connection terminals are to be inserted into an insertion port different from the power output insertion port to which each of the two connection terminals should be inserted. This prevents the connection terminal of the adapter from being inserted into an insertion port different from the power output insertion port to which it should be inserted.

Japanese Unexamined Patent Publication No. 2018-081754

By the way, in the adapter described in Patent Document 1, a USB socket for inserting and connecting a USB terminal on the side surface is provided as an external device connection portion. When the USB terminal inserted into the USB socket is pulled out, the adapter may move in the direction of pulling out the USB terminal and may be detached from the battery pack.

The present disclosure has been made in view of the above circumstances, and an object of the present invention is to provide an adapter and a battery system in which an adapter mounted on a battery does not easily come off from the battery.

One aspect of the adapter according to the present disclosure is an adapter mounted on a battery. The adapter includes a mounting portion and a connection port. The attachment portion is attached to the battery and maintains a predetermined attachment state of the adapter to the battery. A connection portion of an electric device is inserted into the connection port in the connection direction. The mounting portion has a movement restricting portion that restricts the adapter in the mounted state from moving in the disconnection direction, which is the opposite direction of the connecting direction.

One aspect of the battery system according to the present disclosure includes the adapter and the battery.

According to the adapter and battery system according to the present disclosure, it is difficult for the adapter mounted on the battery to be detached from the battery.

FIG. 1 is a side view of an electric bicycle according to an embodiment of the present disclosure. FIG. 2 is a perspective view of the battery in the same embodiment as viewed from above. FIG. 3 is a perspective view of the battery in the same embodiment as viewed from below. FIG. 4 is a perspective view of the battery to which the adapter is mounted in the predetermined mounting state in the same embodiment as viewed from above. FIG. 5 is a perspective view of the adapter in the same embodiment as viewed from above. FIG. 6 is a perspective view from above for explaining the attachment of the adapter to the battery in the same embodiment. FIG. 7 is a perspective view from above for explaining the attachment of the adapter to the battery in the same embodiment.

(Embodiment)
(1) Outline As shown in FIG. 4, the adapter 6 is attached to the battery 5. The adapter 6 includes a mounting portion and a connection port. The attachment portion is attached to the battery 5 and maintains a predetermined attachment state of the adapter 6 to the battery 5. As for the connection port, the connection portion of the electric device is inserted in the connection direction D21. The mounting portion has a movement restricting portion 69 that regulates the adapter 6 in the mounted state from moving in the disconnecting direction D22, which is the direction opposite to the connecting direction D21.

Since the adapter 6 attached to the battery 5 is difficult to move in the detaching direction D22 by the movement restricting unit 69, it is difficult to detach from the battery 5.

(2) Details The adapter 6 according to the present embodiment is an adapter 6 mounted on the battery 5 of the electric bicycle 1. Hereinafter, the electric bicycle 1, the battery 5, the adapter 6, and the battery system will be described.

(2.1) Overall Configuration FIG. 1 is a side view of the electric bicycle 1 according to the present embodiment. The electric bicycle 1 has a frame 2. A drive unit 3 is attached to the frame 2. The drive unit 3 includes at least a battery device 4 and a motor unit 30.

The battery device 4 is a device that supplies electric power to the motor unit 30. In the present embodiment, the battery device 4 includes a battery 5 and a battery mounting portion 41.

The electric bicycle 1 is a bicycle that can travel by using electric power. In the present embodiment, the electric bicycle 1 is an electrically assisted bicycle that assists the user's stepping force (sometimes referred to as "stepping force") by a motor. You may. In short, the electric bicycle 1 may be an electrically assisted bicycle or a bicycle capable of self-propelling only by a motor. The electric bicycle 1 includes a frame 2, a plurality of wheels 11, a drive unit 3, a handle 14, a saddle 15, a crank 16, and a pedal 17. The drive unit 3 includes a motor unit 30 and a battery device 4. The plurality of wheels 11 have a front wheel 12 and a rear wheel 13.

Here, in the present disclosure, the traveling direction of the electric bicycle 1 is defined as the "forward direction", and the opposite direction is defined as the "rear direction". Further, the direction parallel to the front direction and the rear direction (bidirectional direction) is defined as the "front-back direction", and the direction orthogonal to the front-back direction and along the horizontal plane (bidirectional direction) is defined as the "left-right direction".

The frame 2 is a frame capable of holding at least the front wheels 12, the rear wheels 13, and the battery 5. In the present embodiment, the frame 2 is made of an aluminum alloy containing aluminum as a main component. However, in the present disclosure, the frame 2 is not limited to the aluminum alloy, and may be made of iron, chromium mobriden steel, high-tensile steel, a metal such as titanium, carbon, or the like.

The frame 2 includes a plurality of pipes. In the present embodiment, the frame 2 has a lower pipe 20, a vertical pipe 21, a plurality of (two in the present embodiment) chain stays 22, and a plurality of (two in the present embodiment) seat stays 23 as a plurality of pipes. It includes a head pipe 25 and a front hawk 26. Further, the frame 2 includes a motor bracket 27.

Here, the "pipe" referred to in the present disclosure means an elongated and hollow member, and the shape of the cross section is not particularly limited. For example, the pipe includes not only a circular cross section such as a perfect circular cross section or an oval cross section (including an elliptical shape), but also a polygonal cross section such as a square cross section, a rectangular cross section, and a hexagonal cross section.

The motor bracket 27 is at least a portion where the lower end of the lower pipe 20 and the front end of the chain stay 22 are connected. In the present embodiment, the lower end portion of the vertical pipe 21 is connected to the motor bracket 27 in addition to the lower pipe 20 and the chain stay 22. In this embodiment, the motor unit 30 is attached to the motor bracket 27. When the motor unit 30 is attached to the motor bracket 27, the motor bracket 27 supports the motor unit 30.

The lower pipe 20 is a pipe that connects the motor bracket 27 and the head pipe 25. The lower pipe 20 extends from the front end of the motor bracket 27 to the head pipe 25, and in the longitudinal direction thereof, the lower pipe 20 is inclined so as to be located upward toward the front.

The vertical pipe 21 is a pipe that holds the saddle 15. In the present embodiment, the vertical pipe 21 connects the motor bracket 27 and the seat stay 23. In the present embodiment, the vertical pipe 21 extends from the upper end portion of the motor bracket 27 to the seat stay 23, and in the longitudinal direction thereof, the vertical pipe 21 is inclined so as to be located upward toward the rear direction. The vertical pipe 21 holds the saddle 15 so that it can move along the longitudinal direction of the vertical pipe 21.

The plurality of chain stays 22 are pipes that connect the motor bracket 27 and the seat stay 23. Each chain stay 22 extends from the rear end of the motor bracket 27 to the rear end of the seat stay 23. In the present embodiment, there are two chain stays 22 separated from each other in the left-right direction, and the rear wheel 13 is arranged between the two chain stays 22. A bearing (not shown) to which the shaft of the rear wheel 13 (rear wheel shaft 131) is attached is formed at the rear end of the chain stay 22, and is attached so that the rear wheel 13 can rotate.

The plurality of seat stays 23 are pipes that connect the upper end portion of the vertical pipe 21 and the chain stay 22. Each seat stay 23 extends from the upper end of the vertical pipe 21 to the rear end of the chain stay 22, and is inclined so that its longitudinal direction is positioned downward toward the rear. The "upper end portion of the standing pipe 21" as used herein refers to a portion having a certain range from the upper tip of the standing pipe 21 to a portion having a certain dimension in the downward direction along the longitudinal direction of the standing pipe 21. means. In the present embodiment, there are two seat stays 23 separated from each other in the left-right direction, and they are connected one-to-one to the two chain stays 22.

The head pipe 25 is a pipe to which the front end of the lower pipe 20 is connected. The head pipe 25 supports the front hawk 26 and the handle 14 so that they can rotate about the central axis of the head pipe 25.

The front hawk 26 is a pipe to which the front wheels 12 are attached so as to be able to rotate around the axis of the front wheels 12 (front wheel shaft 121). The front hawk 26 has a pair of legs 261 that support the front wheel axle 121, and a steering column (not shown) extending upward from the upper end of the leg 261 along the central axis of the head pipe 25. The front hawk 26 is attached to the head pipe 25 by fitting the steering column into the head pipe 25. A steering wheel 14 is attached to the upper end of the steering column. As a result, when the handle 14 rotates around the central axis of the head pipe 25, the front hawk 26 rotates around the central axis of the head pipe 25, and the front wheels 12 rotate around the central axis of the head pipe 25.

The front wheel 12 is the front wheel 11 of the two wheels 11 arranged in the front-rear direction. In this embodiment, the front wheels 12 are supported by the front hawk 26 so that they can rotate around the front wheel axle 121. The longitudinal direction of the front wheel axle 121 is parallel to the left-right direction. In the present embodiment, the front wheel 12 is a wheel 11 that does not receive power transmission from the motor unit 30.

The rear wheel 13 is the rear wheel 11 of the two wheels 11 arranged in the front-rear direction. In the present embodiment, the rear wheel 13 is rotatably supported around the rear wheel axle 131 by the two chain stays 22. The longitudinal direction of the rear wheel axle 131 is parallel to the left-right direction. The rear wheel 13 has a rear sprocket 132 (here, a cassette sprocket) in the present embodiment, and is connected to the drive sprocket 32 of the motor unit 30 via a power transmission body 18 (here, a chain). As a result, the power of the motor unit 30 can be transmitted to the rear wheels 13.

(2.2) Drive unit The drive unit 3 is a device that generates electric power in the electric bicycle 1. The power generated by the drive unit 3 is transmitted to the wheels 11. The drive unit 3 includes a motor unit 30 and a battery device 4.

(2.2.1) Motor unit The motor unit 30 generates a drive auxiliary output when a pedaling force is input from the pedal 17. The "driving auxiliary output" referred to in the present disclosure means a force for supplementing the pedaling force using the motor. In the present embodiment, when the pedal force is input from the pedal 17 and the crank 16, the motor unit 30 detects the input value of the pedal force, and when the input value is equal to or less than a certain value, the motor unit 30 transmits the drive auxiliary output to the power transmitter. Output to 18.

The motor unit 30 includes a motor and a drive sprocket 32 on which the power transmission body 18 is hung. The motor operates by receiving electric power supplied from the battery device 4. The drive sprocket 32 is provided to transmit power to the rear wheels 13 via the power transmission body 18. The drive sprocket 32 is rotated by the rotation of the crank 16 and can receive the output of the motor. That is, the motor unit 30 according to the present embodiment transmits the pedaling force transmitted via the pedal 17 and the crank 16 and the output of the motor to the drive sprocket 32, and then transmits the power to the power transmission body 18. This is a so-called single-shaft motor unit. However, in the present disclosure, a so-called two-shaft motor unit may be used, in which the pedaling force is transmitted to the power transmission body 18 and the output of the motor is transmitted to the power transmission body 18.

(2.2.2) Battery device The battery device 4 is a device that supplies electric power to at least a motor. However, in the present disclosure, the battery device 4 may be configured to supply electric power to a headlight, an ON / OFF operation unit of the motor, or the like in addition to the motor. The battery device 4 includes a battery 5 and a battery mounting unit 41.

The battery 5 is a secondary battery that stores electrical energy supplied to the motor. The battery 5 is held in a state of being mounted on the battery mounting portion 41, and is electrically connected to the motor in this state. As a result, the battery 5 can supply electric power to the motor.

The battery 5 includes a casing 50 and a plurality of cells. The casing 50 is an outer shell of the battery 5, and in the present embodiment, a plurality of cells are built in. However, in the present disclosure, the battery 5 may include one cell.

As shown in FIGS. 2 and 3, the casing 50 of the battery 5 is configured by combining the upper case 501 and the lower case 502. As shown in FIGS. 2 and 3, the vertical direction with respect to the battery 5 is defined. The vertical direction shown in FIGS. 2 and 3 is for convenience. For example, when the battery 5 is mounted on the battery mounting portion 41 of the electric bicycle 1 as shown in FIG. 1, the vertical direction of the battery 5 is It is different from the vertical direction in FIGS. 2 and 3. Further, the longitudinal direction D1 of the casing 50 is defined as shown in FIGS. 2 and 3. The casing 50 of the battery 5 includes a mounting portion 51 at one end of the longitudinal direction D1. The casing 50 of the battery 5 includes a handle 52 at the other end in the longitudinal direction D1. The user can mount the battery 5 on the battery mounting portion 41 of the electric bicycle 1 by grasping the handle portion 52 and inserting the mounting portion 51 into the battery mounting portion 41 shown in FIG. Equipment is stored inside the casing 50.

An electric power remaining amount display unit 504 of the battery 5 is provided on the upper surface 503 of the casing 50.

The mounting portion 51 has a protruding end surface 53 and a protruding side surface 54 adjacent to the protruding end surface 53. The mounting portion 51 is a part of the casing 50. That is, the space inside the mounting portion 51 constitutes a part of the space inside the casing 50. In this embodiment, the protruding end face 53 has a rectangular shape. In the protruding end face 53, the normal direction D3 faces one of the longitudinal directions D1 (the direction in which the mounting portion 51 is located in the casing 50).

The protruding end surface 53 is provided with a terminal connection portion 531 to which a terminal (not shown) of the battery mounting portion 41 is connected. As shown in FIGS. 2 and 3, a plurality of terminal connection portions 531 are provided. The terminal connection portion 531 has a slot, and a partition wall is provided between the adjacent slots. The terminal connection portion 531 has a terminal member (not shown) that is electrically connected to the terminal of the battery mounting portion 41 or the connection portion 91 of the electric device 9 inside.

An end face recess 56 is formed on the protruding end face 53. The end face recess 56 is formed on the upper side of the terminal connection portion 531. The end face recess 56 is formed to connect the battery 5 to the battery mounting portion 41.

The projecting side surface 54 is adjacent to the projecting end surface 53, and the normal directions D41 to D44 of the projecting side surface 54 intersect with the normal direction D3 of the projecting end surface 53, respectively. In the present embodiment, the normal directions D41 to D44 of the protruding side surface 54 are substantially orthogonal to the normal direction D3 of the protruding end surface 53, respectively. The protruding side surface 54 is composed of four surfaces corresponding to each side of the rectangular protruding end surface 53.

The battery 5 has a shaft portion 55 on the protruding side surface 54. The shaft portion 55 is used to connect the battery 5 to the battery mounting portion 41.

The battery 5 has a side recess 57 on a protruding side surface 54 (lower protruding side surface 54 in this embodiment). The side recess 57 is formed to connect the battery 5 to the battery mounting portion 41.

(2.3) Adapter As shown in FIG. 4, the adapter 6 is attached to the battery 5 when the battery 5 for the electric bicycle 1 supplies power to an arbitrary electric device 9. Examples of the electric device 9 include so-called smartphones and tablet terminals, but the electric device 9 is not particularly limited.

As shown in FIG. 5, the adapter 6 includes a main body portion 61, a mounting portion 62, and a connection port 63 (see FIG. 4). Also in the adapter 6, the upper and lower parts are specified so as to correspond to the upper and lower parts (see FIG. 4) specified for the battery 5. The adapter 6 includes a casing 60 in which equipment is housed, and the casing 60 has a main body portion 61, a mounting wall portion 65, and a side wall portion 66.

As shown in FIG. 4, the main body 61 faces the protruding end surface 53 when the adapter 6 is mounted on the battery 5 in a predetermined mounting state. As shown in FIG. 5, the adapter 6 includes a terminal 64 on a surface 611 facing the protruding end surface 53 of the main body 61. The terminal 64 is inserted (connected) into the terminal connection portion 531 of the battery 5 and electrically connected to a terminal member (not shown) provided inside the battery 5.

The main body portion 61 has an end face convex portion 612 inserted into the end face concave portion 56. The end face convex portion 612 is inserted into the end face concave portion 56 when the adapter 6 is attached to the battery 5, so that the terminal 64 can be easily inserted into the terminal connection portion 531 of the battery 5. That is, the end face convex portion 612 functions as a positioning portion when the terminal 64 is inserted into the terminal connection portion 531 of the battery 5.

On the upper surface and the lower surface of the main body 61, dents 613 that are recessed from the surroundings are formed in a part thereof. The recess 613 functions as a grip portion for the user to pinch and grip the adapter 6 with his / her fingers. The surface of the recess 613 is preferably textured. As a result, when the user grasps the upper and lower dents 613 with his / her fingers, the fingers are less likely to slip.

As shown in FIG. 4, a connection port 63 is formed on a surface 614 opposite to the surface 611 (see FIG. 5) facing the protruding end surface 53 of the main body 61. The connection portion 91 of the electric device 9 is inserted into the connection port 63 in the connection direction D21. The connection port 63 is a so-called USB port in the present embodiment, but is not particularly limited. In the present embodiment, the connecting portion 91 is provided on the cord 90 connected to the electric device 9, but since the cord 90 functions as a part of the components of the electric device 9, the connecting portion 91 is an electric device. It does not have to be provided directly in 9. Of course, the connection portion 91 may be provided directly on the electric device 9. The connection direction D21 of the adapter 6 mounted on the battery 5 coincides with the longitudinal direction D1 of the casing 50 of the battery 5, and the connection port 63 is the longitudinal direction D1 of the adapter 6 mounted on the battery 5 and the battery 5. Located at the end. Therefore, in a state where the connection portion 91 of the electric device 9 is connected to the connection port 63, the surface 614 on which the connection port 63 is formed cannot be placed on a horizontal plane. Therefore, the surface 614 on which the connection port 63 is formed is placed on a horizontal surface, and the adapter 6 and the battery 5 are prevented from being used upright so that the longitudinal direction D1 is vertical. As a result, it is possible to prevent an accident in which the adapter 6 and the battery 5 standing so that the longitudinal direction D1 is vertical fall over.

As shown in FIGS. 4 and 5, the mounting wall portion 65 protrudes from the main body portion 61 and faces the protruding side surface 54 in a state of sandwiching the mounting portion 51. Two mounting wall portions 65 are provided. In the present embodiment, two mounting wall portions 65 facing each other are provided on two protruding side surfaces 54 (two protruding side surfaces 54 in a direction orthogonal to the vertical direction) corresponding to two opposing sides of the rectangular protruding end surface 53. Provided.

The side wall portion 66 faces the protruding side surface 54 (lower protruding side surface 54) corresponding to one of the remaining two sides of the protruding end surface 53. The mounting wall portion 65 and the side wall portion 66 form a continuous wall portion. The main body portion 61, the mounting wall portion 65, and the side wall portion 66 are a part of the casing 60 and are integrally formed.

The mounting wall portion 65 has a side convex portion 67 to be inserted into the side concave portion 57 at a portion facing the protruding side surface 54. The side convex portion 67 is inserted into the side concave portion 57 when the adapter 6 is attached to the battery 5, so that the terminal 64 can be easily inserted into the terminal connection portion 531 of the battery 5. That is, the side convex portion 67 functions as a positioning portion when the terminal 64 is inserted into the terminal connection portion 531 of the battery 5.

The mounting portion 62 is mounted on the battery 5 to maintain a predetermined mounting state of the adapter 6 with respect to the battery. As shown in FIG. 5, in the present embodiment, the mounting wall portion 65 is a shaft portion inserting portion 621 (recessed portion) in which the shaft portion 55 of the battery 5 is inserted into a portion facing the protruding side surface 54 as the mounting portion 62. ). The shaft portion insertion portion 621 as the mounting portion 62 is open to the inner side and the upper side of the mounting wall portion 65.

The attachment of the adapter 6 to the battery 5 will be described. As shown in FIG. 6, the protruding end surface 53 of the mounting portion 51 of the battery 5 and the surface 611 facing the protruding end surface 53 of the main body 61 of the adapter 6 are opposed to each other. At this time, the connection direction D21 of the adapter 6 is slightly tilted downward with respect to the longitudinal direction D1 of the battery 5. As a result, the shaft portion 55 of the battery 5 can be easily inserted into the shaft portion insertion portion 621 as the mounting portion 62 of the mounting wall portion 65.

Next, as shown in FIG. 7, the surface 611 of the adapter 6 is brought closer to the protruding end surface 53 of the mounting portion 51 of the battery 5, and the shaft portion 55 of the battery 5 is brought into the mounting portion of the mounting wall portion 65 of the adapter 6. It is inserted into the shaft portion insertion portion 621 as 62. The shaft portion 55 of the battery 5 comes into contact with the guide surface 68 (see FIG. 5). The guide surface 68 receives the shaft portion 55 and guides the adapter 6 to perform a rotational movement about the shaft portion 55. The end of the shaft portion 55 of the battery 5 has an arc shape when viewed from the direction orthogonal to the longitudinal direction D1 and the vertical direction. Similarly, the guide surface 68 also has an arc shape along the end of the shaft portion 55 of the battery 5. As a result, the adapter 6 can smoothly rotate around the shaft portion 55 of the battery 5.

When the adapter 6 rotates around the shaft portion 55 of the battery 5, the mounting state shown in FIG. 4 is obtained.

As shown in FIGS. 4 and 5, the mounting portion 62 has a movement restricting portion 69 that restricts the adapter 6 in the mounted state from moving in the detaching direction D22. In the present embodiment, the movement restricting portion 69 is a wall portion formed at the tip end side of the mounting portion 62 of the mounting wall portion 65 in the connection direction D21. As shown in FIG. 4, when the connection portion 91 of the electric device 9 is connected to the adapter 6 in the mounted state and the connection portion 91 is pulled out in the disconnection direction D22, the adapter 6 is directed toward the disconnection direction D22. Receive power. When the adapter 6 receives a force in the detaching direction D22, it tries to move in the detaching direction D22, but the movement restricting portion 69 is caught by the shaft portion 55 and does not move. As a result, the adapter 6 is prevented from moving toward the detachment direction D22 and falling out of the battery 5.

As shown in FIG. 5, the shaft portion inserting portion 621 (mounting portion 62) has a convex portion 70 that comes into contact with the shaft portion 55 to give a click feeling. As shown in FIG. 6, the shaft portion 55 has a tubular shape, and the inside of the cylinder is recessed. By providing the convex portion 70, a click feeling is obtained immediately before the adapter 6 rotates around the shaft portion 55 of the battery 5 and is in the mounted state, and the user is in the mounted state. Easy to confirm that.

Further, the side surface convex portion 67 has a stepped portion at a portion facing the side surface concave portion 57. That is, the upper surface of the side surface convex portion 67 has a low portion 671 on the tip end side in the connection direction D21 and a high portion 672 on the tip end side in the detachment direction D22. By providing such a stepped portion, the high portion 672 starts contact with the side recess 57 immediately before the adapter 6 rotates about the shaft portion 55 of the battery 5 and is in the mounted state. A click feeling is obtained, and the user can easily confirm that the adapter 6 is in the attached state.

As shown in FIG. 5, the side wall portion 66 has a drain hole 661. The drain hole 661 is formed at the end of the side wall portion 66 in the vicinity of the mounting wall portion 65. When the adapter 6 is attached to the battery 5 whose upper surface 503 is wet due to rainwater or the like, the rainwater transmitted through the upper surface 503 falls downward from the portion of the upper surface 503 facing the mounting wall portion 65. Therefore, since the drain hole 661 is formed at the end of the side wall portion 66 near the mounting wall portion 65, water is likely to be discharged through the drain hole 661.

Further, the main body 61 has a protruding wall 71 that projects so as to surround the terminal 64. As a result, the water adhering to the surface 611 facing the protruding end surface 53 of the main body 61 moves toward the terminal 64 and adheres to the terminal 64, or from the gap formed between the terminal 64 and the surface 611. Invasion into the inside of the main body 61 is suppressed.

Further, as shown in FIG. 4, the connection port 63 is formed at a position offset to either side rather than the central portion when viewed in the longitudinal direction D1. As a result, even if the mounting wall portion 65 is damaged and the connecting portion 91 is pulled so that the adapter 6 tries to move in the detaching direction D22, it is not a straight motion toward the detaching direction D22, but one of the attachments. Rotational motion of the adapter 6 around the wall portion 65 is likely to occur. As a result, even if the adapter 6 is pulled in the detaching direction D22, the adapter 6 is unlikely to come off from the battery 5.

Further, the battery system includes the adapter 6 and the battery 5 described above. Even in this battery system, it is possible to prevent the adapter 6 from moving toward the detachment direction D22 and falling out of the battery 5.

(3) Modified Example The embodiment is only one of the various embodiments of the present disclosure. The embodiment can be changed in various ways depending on the design and the like as long as the object of the present disclosure can be achieved. Hereinafter, modified examples of the embodiments are listed. The modifications described below can be applied in combination as appropriate.

In the electric bicycle 1 according to the embodiment, the power output from the motor unit 30 is transmitted to the rear wheels 13, but in the present disclosure, the power output from the motor unit 30 may be transmitted to the front wheels 12.

In the embodiment, the power transmission body 18 is a chain, but the present disclosure is not limited to this. For example, the power transmitter 18 may be a belt, a wire, or the like.

In the embodiment, the battery device 4 is attached to the lower pipe 20, but in the present disclosure, the battery device 4 may be attached to, for example, a vertical pipe 21, and the pipe to which the battery device 4 is attached is not particularly limited.

The protruding end surface 53 of the mounting portion 51 does not have to face one of the longitudinal directions D1 of the casing 50. The protruding end face 53 does not have to have a rectangular shape.

The normal directions D41 to D44 of the protruding side surface 54 do not have to be substantially orthogonal to the normal direction D3 of the protruding end surface 53, respectively.

The protruding side surface 54 does not have to be composed of four surfaces.

The connection port 63 may not be for receiving power from the battery 5, but may be for receiving data from the battery 5. The data includes information on the remaining battery level, the temperature history of the battery 5, and the like, but is not particularly limited.

Further, the movement restricting portion 69 may not be provided, and the connection port 63 may be formed on the surface 614 opposite to the surface 611 facing the protruding end surface 53.

Further, the movement restricting unit 69 may not be provided and the guide surface 68 may be provided.

Further, the movement restricting portion 69 may not be provided and the convex portion 70 may be provided.

Further, the movement restricting portion 69 may not be provided, and the side concave portion 57 and the side convex portion 67 may be provided.

Further, the movement restricting portion 69 is not provided, the protruding end surface 53 has a rectangular shape, the protruding side surface 54 is composed of four surfaces corresponding to each side of the protruding end surface 53, and the adapter 6 is provided on the two protruding side surfaces 54. The two mounting wall portions 65 facing each other and the side wall portion 66 facing the protruding side surface 54 corresponding to one of the remaining two sides of the protruding end surface 53 may be provided.

(4) Aspects As described above, the adapter 6 according to the first aspect is an adapter 6 mounted on the battery 5. The adapter 6 includes a mounting portion 62 and a connection port 63. The mounting portion 62 is mounted on the battery 5 to maintain a predetermined mounting state of the adapter 6 with respect to the battery 5. In the connection port 63, the connection portion 91 of the electric device 9 is inserted in the connection direction D21. The mounting portion 62 has a movement restricting portion 69 that restricts the adapter 6 in the mounted state from moving in the disconnecting direction D22, which is the direction opposite to the connecting direction D21.

According to the first aspect, the adapter 6 is prevented from moving toward the detachment direction D22 and falling out of the battery 5.

The second aspect is realized in combination with the first aspect. In the second aspect, the battery 5 includes a mounting portion 51 having a protruding end face 53 having a terminal connecting portion 531 and a protruding side surface 54 adjacent to the protruding end face 53. The adapter 6 includes a main body portion 61 facing the protruding end surface 53, and two mounting wall portions 65 facing the protruding side surface 54 with the mounting portion 51 protruding from the main body portion 61. The adapter 6 includes a terminal 64 on a surface 611 facing the protruding end surface 53 of the main body 61.

According to the second aspect, since the mounting portion 51 is sandwiched between the two mounting wall portions 65, the mounting of the adapter 6 on the battery 5 is stable.

The third aspect is realized in combination with the second aspect. In the third aspect, the mounting wall portion 65 has, as the mounting portion 62, a shaft portion inserting portion 621 into which the shaft portion 55 of the battery 5 on the protruding side surface 54 is inserted into a portion facing the protruding side surface.

According to the third aspect, the adapter 6 can be attached to the battery 5 by fitting the shaft portion 55 and the shaft portion insertion portion 621 (mounting portion 62).

The fourth aspect is realized in combination with the third aspect. In the fourth aspect, when the shaft portion insertion portion 621 is attached to the battery 5 and is in the mounted state, the guide surface 68 receives the shaft portion 55 and guides the shaft portion 55 to perform a rotational movement about the shaft portion 55. Has.

According to the fourth aspect, the adapter 6 can smoothly perform the rotational movement around the shaft portion 55 of the battery 5.

The fifth aspect is realized in combination with the third or fourth aspect. In the fifth aspect, the shaft portion inserting portion 621 has a convex portion 70 that comes into contact with the shaft portion 55 to give a click feeling.

According to the fifth aspect, the user can easily confirm that the adapter 6 is in the mounted state.

The sixth aspect is realized in combination with any of the second to fifth aspects. In the sixth aspect, the portion facing the projecting side surface 54 has a side surface convex portion 67 inserted into the side surface recess 57 of the projecting side surface 54 of the battery 5.

According to the sixth aspect, the side surface convex portion 67 functions as a positioning portion when the terminal 64 is inserted into the terminal connection portion 531 of the battery 5, so that the terminal 64 is inserted into the terminal connection portion 531 of the battery 5. It will be easier.

The seventh aspect is realized in combination with the sixth aspect. In the seventh aspect, the side surface convex portion has a stepped portion at a portion facing the side surface concave portion.

According to the seventh aspect, the user can easily confirm that the adapter 6 is in the mounted state.

The eighth aspect is realized in combination with any of the second to seventh aspects. In the eighth aspect, the battery 5 has a protruding end face having a rectangular shape, and the protruding side surface is composed of four surfaces corresponding to each side of the protruding end face. The adapter 6 has two mounting wall portions 65 facing two protruding side surfaces corresponding to two opposing sides of the protruding end face, and a side wall portion 66 facing the protruding side surface corresponding to one of the remaining two sides of the protruding end face. And.

According to the eighth aspect, since the two mounting wall portions 65 are along the protruding side surface 54 and the side wall portion 66 is also along the protruding side surface 54, the attachment of the adapter 6 to the battery 5 is stable.

The ninth aspect is realized in combination with the eighth aspect. In the ninth aspect, the side wall 66 has a drain hole 661.

According to the ninth aspect, water is easily discharged through the drain hole 661.

The tenth aspect is realized by a combination with any of the second to ninth aspects. In a tenth aspect, the main body has a protruding wall 71 that projects so as to surround the terminal.

According to the tenth aspect, water is prevented from moving toward the terminal 64 and adhering to the terminal 64 or entering the inside of the main body 61 through the gap.

The eleventh aspect is realized by the combination with any one of the second to tenth aspects. In the eleventh aspect, the battery 5 has an end face recess 56 on the protruding end face 53. The main body portion 61 has an end face convex portion 612 inserted into the end face concave portion 56.

According to the eleventh aspect, the end face convex portion 612 functions as a positioning portion when the terminal 64 is inserted into the terminal connection portion 531 of the battery 5, so that the terminal 64 is inserted into the terminal connection portion 531 of the battery 5. It will be easier.

The twelfth aspect is realized by the combination with any one of the first to eleventh aspects. In a twelfth aspect, the battery system comprises an adapter 6 and a battery 5 of any of the first to eleventh aspects.

According to the twelfth aspect, the adapter 6 is prevented from moving toward the detachment direction D22 and falling out of the battery 5.

The adapter 6 according to the thirteenth aspect is an adapter 6 mounted on the battery 5. The adapter 6 includes a mounting portion 62 and a connection port 63. The mounting portion 62 is mounted on the battery 5 to maintain a predetermined mounting state of the adapter 6 with respect to the battery 5. In the connection port 63, the connection portion 91 of the electric device 9 is inserted in the connection direction D21. The connection port 63 is formed on the surface 614 opposite to the surface 611 facing the protruding end surface 53 of the main body 61.

According to the thirteenth aspect, the surface 614 on which the connection port 63 is formed is placed on a horizontal plane to prevent the adapter 6 and the battery 5 from being used upright so that the longitudinal direction D1 is vertical. Will be done. As a result, it is possible to prevent an accident in which the adapter 6 and the battery 5 standing so that the longitudinal direction D1 is vertical fall over.

The adapter 6 according to the fourteenth aspect is an adapter 6 mounted on the battery 5. The adapter 6 includes a mounting portion 62 and a connection port 63. The mounting portion 62 is mounted on the battery 5 to maintain a predetermined mounting state of the adapter 6 with respect to the battery 5. In the connection port 63, the connection portion 91 of the electric device 9 is inserted in the connection direction D21. The battery 5 includes a mounting portion 51 having a protruding end face 53 and a protruding side surface 54 adjacent to the protruding end face 53, and the protruding end face 53 is provided with a terminal connecting portion 531. The adapter 6 includes a main body portion 61 facing the protruding end surface 53, and two mounting wall portions 65 protruding from the main body portion 61 and facing the protruding side surface with the mounting portion 51 sandwiched between them. The adapter 6 includes a terminal 64 on a surface 611 facing the protruding end surface 53 of the main body 61. The mounting wall portion 65 has, as the mounting portion 62, a shaft portion inserting portion 621 into which the shaft portion 55 of the battery 5 on the protruding side surface is inserted in a portion facing the protruding side surface. The shaft portion insertion portion 621 has a guide surface 68 that receives the shaft portion 55 and guides the shaft portion 55 so as to perform a rotational movement about the shaft portion 55 when the shaft portion insertion portion 621 is attached to the battery 5 and is in the mounted state.

According to the fourteenth aspect, the adapter 6 can smoothly perform the rotational movement around the shaft portion 55 of the battery 5.

The adapter 6 according to the fifteenth aspect is an adapter 6 mounted on the battery 5. The adapter 6 includes a mounting portion 62 and a connection port 63. The mounting portion 62 is mounted on the battery 5 to maintain a predetermined mounting state of the adapter 6 with respect to the battery 5. In the connection port 63, the connection portion 91 of the electric device 9 is inserted in the connection direction D21. The battery 5 includes a mounting portion 51 having a protruding end face 53 and a protruding side surface 54 adjacent to the protruding end face 53, and the protruding end face 53 is provided with a terminal connecting portion 531. The adapter 6 includes a main body portion 61 facing the protruding end surface 53, and two mounting wall portions 65 facing the protruding side surface 54 with the mounting portion 51 protruding from the main body portion 61. The adapter 6 includes a terminal 64 on a surface 611 facing the protruding end surface 53 of the main body 61. The mounting wall portion 65 has a shaft portion inserting portion 621 as a mounting portion 62 into which the shaft portion 55 of the battery 5 on the protruding side surface 54 is inserted in a portion facing the protruding side surface 54. The shaft portion insertion portion 621 has a convex portion 70 that comes into contact with the shaft portion 55 to give a click feeling.

According to the fifteenth aspect, the user can easily confirm that the adapter 6 is in the mounted state.

The adapter 6 according to the sixteenth aspect is an adapter 6 mounted on the battery 5. The adapter 6 includes a mounting portion 62 and a connection port 63. The mounting portion 62 is mounted on the battery 5 to maintain a predetermined mounting state of the adapter 6 with respect to the battery 5. In the connection port 63, the connection portion 91 of the electric device 9 is inserted in the connection direction D21. The battery 5 includes a mounting portion 51 having a protruding end face 53 and a protruding side surface 54 adjacent to the protruding end face 53, and the protruding end face 53 is provided with a terminal connecting portion 531. The adapter 6 includes a main body portion 61 facing the protruding end surface 53, and two mounting wall portions 65 facing the protruding side surface 54 with the mounting portion 51 protruding from the main body portion 61. The adapter 6 includes a terminal 64 on a surface 611 facing the protruding end surface 53 of the main body 61. The mounting wall portion 65 has a shaft portion inserting portion 621 as a mounting portion 62 into which the shaft portion 55 of the battery 5 on the protruding side surface 54 is inserted in a portion facing the protruding side surface 54. At a portion facing the protruding side surface 54, there is a side surface convex portion 67 inserted into the side surface recess 57 that the battery 5 has on the protruding side surface 54.

According to the sixteenth aspect, the side surface convex portion 67 functions as a positioning portion when the terminal 64 is inserted into the terminal connection portion 531 of the battery 5, so that the terminal 64 is inserted into the terminal connection portion 531 of the battery 5. It will be easier.

The adapter 6 according to the seventeenth aspect is an adapter 6 mounted on the battery 5. The adapter 6 includes a mounting portion 62 and a connection port 63. The mounting portion 62 is mounted on the battery 5 to maintain a predetermined mounting state of the adapter 6 with respect to the battery 5. In the connection port 63, the connection portion 91 of the electric device 9 is inserted in the connection direction D21. The battery 5 includes a mounting portion 51 having a protruding end face 53 and a protruding side surface 54 adjacent to the protruding end face 53, and the protruding end face 53 is provided with a terminal connecting portion 531. The adapter 6 includes a main body portion 61 facing the protruding end surface 53, and two mounting wall portions 65 facing the protruding side surface 54 with the mounting portion 51 protruding from the main body portion 61. The adapter 6 includes a terminal 64 on a surface 611 facing the protruding end surface 53 of the main body 61. The battery 5 has a protruding end face 53 having a rectangular shape, and the protruding side surface 54 is composed of four surfaces corresponding to each side of the protruding end face 53. The adapter 6 faces two mounting wall portions 65 facing the two protruding side surfaces 54 corresponding to the two opposite sides of the protruding end surface 53, and the protruding side surface 54 corresponding to one of the remaining two sides of the protruding end surface 53. A side wall portion 66 is provided.

According to the seventeenth aspect, since the two mounting wall portions 65 are along the protruding side surface 54 and the side wall portion 66 is also along the protruding side surface 54, the adapter 6 is stably attached to the battery 5.

5 Battery 51 Mounting part 53 Protruding end face 531 Terminal connection part 54 Protruding side surface 55 Shaft part 56 End face recess 57 Side recess 6 Adapter 61 Main body 611 Face 612 End face convex part 614 Opposite side 62 Mounting part 63 Connection port 64 Terminal 65 Mounting Wall part 66 Side wall part 661 Drainage hole 67 Side convex part 68 Guide surface 69 Movement regulation part 70 Convex part 71 Protruding wall 9 Electrical equipment 91 Connection part D21 Connection direction D22 Detachment direction

Claims (12)

An adapter that attaches to the battery
A mounting portion that is mounted on the battery and maintains a predetermined mounting state of the adapter with respect to the battery.
It is equipped with a connection port, in which the connection part of the electrical equipment is inserted in the connection direction.
The mounting portion is an adapter having a movement restricting portion that restricts the adapter in the mounted state from moving in the disconnection direction, which is the opposite direction of the connecting direction. The battery comprises a mounting portion having a protruding end face with a terminal connection and a protruding side surface adjacent to the protruding end face.
The adapter includes a main body portion facing the protruding end surface and two mounting wall portions facing the protruding side surface in a state of protruding from the main body portion and sandwiching the mounting portion, and the protruding end surface of the main body portion. The adapter according to claim 1, wherein the adapter is provided with a terminal on the surface facing the surface. The adapter according to claim 2, wherein the mounting wall portion has a shaft portion insertion portion into which the shaft portion of the battery on the protruding side surface is inserted in a portion of the mounting portion facing the protruding side surface. The third aspect of the present invention, wherein the shaft portion inserting portion has a guide surface that receives the shaft portion and guides the rotational movement around the shaft portion when the shaft portion is attached to the battery and is in the mounted state. Adapter. The adapter according to claim 3 or 4, wherein the shaft portion inserting portion has a convex portion that comes into contact with the shaft portion to give a click feeling. The adapter according to any one of claims 2 to 5, wherein the adapter has a side convex portion to be inserted into a side concave portion having the battery on the protruding side surface at a portion facing the protruding side surface. The adapter according to claim 6, wherein the side surface convex portion has a step portion at a portion facing the side surface concave portion. The battery has four protruding end faces having a rectangular shape and the protruding side surfaces corresponding to each side of the protruding end face.
The adapter faces the two mounting wall portions facing the two protruding side surfaces corresponding to the two opposite sides of the protruding end face and the protruding side surface corresponding to one of the remaining two sides of the protruding end face. The adapter according to any one of claims 2 to 7, further comprising a side wall portion. The adapter according to claim 8, wherein the side wall portion has a drain hole. The adapter according to any one of claims 2 to 9, wherein the main body has a protruding wall protruding so as to surround the terminal. The battery has an end face recess on the protruding end face.
The adapter according to any one of claims 2 to 10, wherein the main body portion has an end face convex portion inserted into the end face concave portion. A battery system comprising the adapter and battery according to any one of claims 1-11.

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