JP3494257B2 - Battery storage device for electric bicycle - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a battery storage device for an electric bicycle, which has a battery as a power source of a motor, such as an electric bicycle.

[0002]

2. Description of the Related Art In the case of a vehicle, such as an electric bicycle, in which it is difficult to charge the battery while traveling, the battery is repeatedly charged by a charger connected to a household power source when not in use. As described above, when it is necessary to charge the battery frequently, there are a single charging method in which the battery is removed from the vehicle and an in-vehicle charging method in which the battery is attached to the vehicle. There is something.

[0003]

By the way, when the battery is removed from the vehicle for charging, for example, an outer box having an insertion opening opened and closed by a lid is fixed to the vehicle side, and an inner box containing a battery is attached to the outer box. When the inner box is housed in the outer box between the inner box and the outer box, the battery side and the vehicle side can be electrically connected and the lid is closed. At this time, a structure that urges the inner box in the electrical connection direction is desirable.

However, such a detachable structure requires a handle for carrying, and depending on the structure for providing the handle, the inner box and the outer box for storing the handle become large and the number of parts increases. To do. In addition, it is necessary to separately secure a space for mounting a lock for preventing the battery from being stolen. Further, when the handle is separately provided in the inner box, it is necessary to consider not only the inner box but also the handle so that noise is not generated due to vibration of traveling.

The present invention has been made in view of the above circumstances. When the battery has a detachable structure, the battery storage device for an electric bicycle is compact and easy to handle, and vibrations due to traveling can be reduced. Is intended to provide.

[0006]

In order to solve the above problems and to achieve the object, the invention according to claim 1 fixes an outer box having an insertion opening at the upper end opened and closed by a lid to the vehicle side. Then, an inner box containing a battery is housed in the outer box so as to be freely inserted into and removed from the insertion opening in the up-down direction, and the inner box is housed between the inner box and the outer box. A connection mechanism for electrically connecting the battery side and the vehicle side when housed in the box is provided, and when the lid is closed, the inner box is biased in the electrically connecting direction.
A plurality of rechargeable battery cells are electrically connected to each other, and the plurality of electrically connected battery cells are integrally packaged with a shrink film, and the shrink-wrapped battery pack is integrally formed with a handle portion. wherein in a state of being housed in the inner box is an inner box and electrically connected to the inner box is retractable configured on the outer box secured to the vehicle, the In'nabo
The parts are divided by the left and right split bodies made of flexible material.
The split structure is adopted, and the
Separate storage space for storing repacks and this storage space
A handle space that is opened to the outside and forms a handle part
It is characterized by having .

In this way, the plurality of electrically connected battery cells are integrally packaged with the shrink film, and the plurality of battery cells can be held compactly and reliably. The compact, shrink-wrapped battery pack is housed in an inner box that has an integrated handle, so not only can the entire inner box be made compact, but it can also be handled by holding the handle of the inner box when charging the battery. It is easy to carry out and put in and out of the outer box, and has a simple structure and is easy to carry. In addition, the assembly of left and right split bodies
In the state, the open door is separated from the storage space and is open to the outside.
Due to the hand space, the inner box can be
The handle is formed integrally with the box to reduce the number of parts.
And compact structure improves the assemblability of the battery. Well
Also, by forming the handle part integrally with the inner box,
Make the inner box directional depending on the position of the handle
The inner box can be stowed in the wrong direction.
And can be prevented.

The invention according to claim 2 is characterized in that the plurality of battery cells are arranged by being divided by a partition plate, and the plurality of battery cells are electrically connected to each other.

As described above, by arranging the plurality of battery cells so as to be divided by the partition plate, the plurality of battery cells are positioned and the shrink film is surely packaged. Further, damage due to interference between the battery cells can be reduced, the partition plate can have a heat dissipation effect, and a short circuit between the battery cells can be prevented.

[0010]

[0011]

The invention according to claim 3 is characterized in that a handle space forming the handle portion is provided on one side of an upper portion with respect to a storage space for storing the battery pack, and the handle portion is offset. .

As described above, since the grip portion of the inner box is offset, the grip portion can be easily stored in the outer box, and there is a direction when the battery is stored in the outer box. Accidental storage is prevented.

According to a fourth aspect of the present invention, a pressing portion is provided inside the lid of the outer box, and the inner box housed in the outer box is operated by the pressing portion with the lid of the outer box closed. It is characterized in that the inner box is configured to be pressed to urge the inner box in the electrical connection direction.

As described above, the inner box is pressed by the pressing portion with the lid of the outer box closed, and the inner box is biased in the electrical connection direction, so that vibration due to running can be reduced and the electrical connection is poor. Can be prevented and noise due to vibration can be reduced.

The invention according to claim 5 is characterized in that the pressing portion provided inside the lid of the outer box is constituted by an elastic member provided inside the lid.

In this way, the inner box is pressed by the elastic member in the state where the outer box lid is closed, and the inner box is surely biased in the electrical connection direction, so that vibration due to running can be reduced and the inner box can be electrically reduced. It can prevent connection failure and reduce noise caused by vibration.

The invention according to claim 6 is characterized in that the pressing portion provided inside the lid of the outer box is constituted by a pressing rib integrally formed inside the lid.

Thus, the inner box is pressed by the pressing ribs integrally formed with the lid of the outer box closed, and the inner box is biased in the electrical connection direction with a simple structure. Vibration can be reduced, electrical connection failure can be prevented, and noise due to vibration can be reduced.

According to a seventh aspect of the present invention, with the lid of the outer box closed, the grip portion of the inner box is pressed by the pressing portion, and the grip portion is elastically deformed to be urged in the electrical connection direction. It is characterized in that it is configured to.

As described above, the grip portion of the inner box is pressed with the lid of the outer box closed, and the elastic deformation of the inner box urges the inner box in the direction of electrical connection. It is possible to prevent defective connection and reduce noise due to vibration.

According to an eighth aspect of the present invention, with the lid of the outer box closed, the upper surface of the inner box is pressed by the pressing portion, and the elastic deformation of the entire upper surface urges it in the electrical connection direction. It is characterized by being configured as follows.

In this way, the upper surface of the inner box is pressed with the lid of the outer box closed, and the elastic deformation of the entire upper surface urges the inner box in the direction of electrical connection, reducing vibrations during running. As a result, poor electrical connection can be prevented and noise due to vibration can be reduced.

The invention according to claim 9 makes it possible to open and close the lid of the outer box with the rear side of the vehicle body as a fulcrum, and at the front side of the vehicle body of the lid, the front side space of the grip portion of the inner box housed in the outer box. A lock mechanism for restricting the opening of the lid is arranged at a position corresponding to.

As described above, the lid of the outer box can be opened and closed with the rear side of the vehicle body as a fulcrum, and the opening degree of the lid of the outer box can be secured. Further, since the lock mechanism is arranged at a position corresponding to the front side space of the grip portion of the inner box, it is not necessary to separately secure a space for disposing the lock mechanism.

[0026]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a battery storage device for an electric bicycle according to the present invention will be described below with reference to the drawings. 1 to 20 are views for explaining a battery storage device of an electric bicycle, FIG. 1 is a left side view of the electric bicycle, and FIG.
Is a sectional view of the battery storage device for the electric bicycle, and FIG.
3 is a sectional view taken along line III-III, FIG. 4 is a left side view of the outer box, FIG. 5 is a right side view of the outer box, FIG. 6 is a rear view of the outer box, and FIG. 7 is taken along line VII-VII of FIG. Sectional view, FIG. 8 is a plan view of the outer box, and FIG. 9 is IX-I of FIG.
Sectional view taken along the line X, FIG. 10 is an enlarged partial sectional view of the charging window portion of the outer box, FIG. 11 is a sectional view taken along the line XI-XI of FIG. 10, and FIG. 12 is taken along the line XII-XII of FIG. Sectional view, FIG.
Is a left side view of the lid, FIG. 14 is a sectional view taken along line XIV-XIV of FIG. 13, FIG. 15 is a plan view of the inner box, FIG. 16 is a developed view of the outer side with the inner box opened, and FIG. 17 is the inner box. Fig. 18 is an unfolded view of the opened inside, and Fig. 18 is XVIII-XV
19 is a sectional view taken along line III, FIG. 19 is a side view of the shrink-wrapped battery, and FIG. 20 is a sectional view taken along line XX-XX of FIG. In this embodiment, left and right mean left and right when viewed in a riding state.

In FIG. 1, reference numeral 1 denotes an electric bicycle equipped with a vehicle battery storage device, which may be driven only by the driving force of an electric motor, or a resultant force of human power and driving force of an electric motor. It may be one that travels in. This electric bicycle 1 needs to be charged frequently, and a single charging method in which the battery is removed from the vehicle and an in-vehicle charging method in which the battery is attached to the vehicle are used.
Both types can be charged for convenient handling.

The body 2 of the bicycle 1 includes a head pipe 2a for rotatably supporting a front fork 4 having a front wheel 3 rotatably supported, a down tube 2b extending rearward and obliquely downward from the head pipe 2a, and a down pipe 2a. A seat tube 2c connected to the rear part of the tube 2b through a center lug 5, and a center lug 5 connected to the rear part of the down tube 2b.
A pair of left and right chain stays 2d connected via
It is composed of a pair of left and right seat stays 2e that connect the upper portion of the seat tube 2c and the rear end of the chain stay 2d so as to form a substantially triangular shape.

The chain stay 2d and the seat stay 2e are integrally connected via a rear wheel bracket 2f,
The rear wheel 6 is rotatably supported on the rear wheel bracket 2f. A steering handle 7 is attached to the upper end of the front fork 4, and a seat pillar tube 9 with a saddle 8 attached is extendably inserted into the upper end of the seat tube 2c. It can be fixed at the height position. The saddle 8 is attached to the tip of a bracket 10 fixed to the upper end of the seat pillar tube 9 so as to be vertically rotatable around a pin 11 as a fulcrum, and the saddle 8 is rotated upward when the battery is removed as described later. This makes it possible to avoid interference with the battery.

A power unit 12 is arranged below the center lug 5. The power unit 12 is a device that combines the pedaling force input to the crank shaft 15 from the pedal 13 via the crank 14 and the driving force from the auxiliary drive device 16 and transmits the resultant to the rear wheel 6 via the chain 17. The auxiliary drive device 16 controls the electric motor 18 that outputs the driving force, the battery storage device 19 that stores the battery that is the power source of the electric motor 18, and the driving force from the electric motor 18 to a value according to the pedal effort. And a controller 20 for The electric motor 18 and the controller 20 are arranged below the down tube 2b along the down tube 2b. The surroundings of these parts, the down tube 2b, and the center lug 5 are upper and lower half-split upper covers 21a, It is covered by the lower cover 21b. Further, the seat tube 2c is the seat cover 2
It is covered by 1c.

The battery accommodating device 19 has a double case structure in which an inner box 32 containing a battery is housed in an outer box 31 so that the inner box 32 can be freely taken in and out, and is arranged along the seat tube 2c on the rear side of the seat tube 2c. A pair of left and right flanges 31c and 31d are arranged on the lower end portion of the front wall 31a and the upper and lower end portions of the rear wall 31b of the outer box 31, and are fixed to the vehicle body 2 by bolting.

The outer box 31 is made of resin and has a left-right two-divided structure. The outer box 31 has locking claws 31e and 31f formed on the left and right front walls 31a and 31b, and an upper end portion thereof is bolted. By fixing, it has a substantially rectangular parallelepiped shape having an insertion opening 31g at the upper end and a bottom wall 31h at the lower end. Further, a locking piece 31i that locks with the seat tube 2c is formed on the front wall 31a of the outer box 31 so as to extend vertically, and the left wall 31j and the right wall 31k improve rigidity and a design effect. Rib for 3
11 is formed.

On the bottom wall 31h of the outer box 31, there is arranged a male connector 42 which constitutes a part of a connection mechanism 41 for connecting a battery to a drive circuit. The male connector 42 is fastened and fixed to the boss portion 31m formed on the outer surface of the bottom wall 31h by a bolt 43, the male terminal 42a thereof projects inward of the bottom wall 31h, and the male terminal 42a has a lead wire 42b. Via electric motor 18, controller 20
Etc. are connected to.

An insertion opening 3 is provided at the upper end of the outer box 31.
A lid 45 for opening and closing 1 g is provided. The lid 45 is a dish-shaped one having a side wall 45a whose peripheral edge is bent downward, and then the pin portion 4 integrally formed on both left and right sides of the side wall 45b.
5y is supported between a pair of boss portions 31n formed on the upper end of the rear wall 31b of the outer box 31, and the lid 45 is rotatably supported on the vehicle rear side.

A lock cylinder 47 is fixed to the tip side of the lid 45, and a key 90 is inserted into the lock cylinder 47 to move the locking claw 47a forward and backward so that the lock cylinder 47 is provided on the inner surface of the outer box 31. A lock mechanism A that can be engaged with and disengaged from the locking piece 48 and that controls the opening of the lid 45.
Are configured. Since the lower surface of the tip of the locking claw 47a is formed as an inclined surface, when the lid 45 is closed, the key 90
It can be locked without any operation.

Further, a charging opening 45d for inserting the charging plug of the charger with the inner box 32 housed in the outer box 31 is formed on the side of the lid 45, and the charging opening 45d is formed around the charging opening 45d. As shown in FIG. 13, a step portion 45d1 that is one step lower is formed, and the periphery of the lid 49 is fitted into the step portion 45d1 so that the lid 49 can be opened and closed in the charging opening 45d. Base 49a of lid 49
Is rotatably provided on a support pin 50 press-fitted in the vertical direction at the end of the charging opening 45d of the lid 45, and the support pin 50 is provided with a spring 51. One end 51a of the spring 51 is locked to the boss 45e of the lid 45, the other end 51b is locked to the recess 49b of the lid 49, and the spring 51 urges the lid 49 in the opening direction at all times. In this way, the spring 51, which is a biasing means for holding the lid 49 in the open state during charging, is provided, and the lid 49 is always biased in the opening direction by the spring 51.

In this way, the lid 49 is constantly urged in the opening direction by the spring 51 of the urging means.
The lid 49 always holds the fully open position in the opened state, and when the lid 45 of the outer box 31 is to be closed, the extending portion 49d of the lid 49 has the extension 49d.
The lid 45 can be prevented from being damaged by riding on the first mating surface portion 31p, and the lid 45 can be closed smoothly without damage.

The lid 49 has a hook portion 49c.
And an extending portion 49d are formed. Hook 49c
Is formed so as to be engageable with a convex portion 45f formed inside the lid 45, and the extending portion 49d is formed so as to be engageable inside the mating surface portion 31p of the outer box 31. When closing the lid 45 of the outer box 31, the lid 49 is fitted into the charging opening 45d and the hook portion 49c is locked to the convex portion 45f, whereby the lid 49 is restricted from opening by the spring 51.

Therefore, when the inner box 32 is housed in the outer box 31 and the lid 45 is closed while the lid 49 closes the charging opening 45d, the extending portion 49d engages with the inner surface 31p of the outer box 31. When the lid 45 is closed, opening of the lid 49 is restricted, and it is not necessary to close the lid 49 while pressing the lid 49 against the biasing force of the spring 51 of the biasing means, which facilitates the operation. .

When the lid 45 of the outer box 31 is closed, the extending portion 49d of the lid 49 is locked inside the mating surface portion 31p of the outer box 31, and the lid 45 is closed.
Since the lid 49 cannot be opened without opening the charging opening 45
It is possible to prevent mischief such as inserting a foreign substance from d.
Moreover, since the lock of the lid 45 can also be used as the lock of the lid 49, the structure is simple, the number of parts is small, and the cost is low.

Further, in order to close the lid 49 after charging with the lid 45 closed, the extending portion 49d is elastically deformed, so that the extending portion 49d can be fitted into the charging opening 45d and closed. There is no need to operate the lock of.

The inner box 32 is a box body 60.
The battery pack 61 is housed inside.
The inner box 32 is integrally formed of resin which is a flexible member, and the box body 60 has a divided structure of left and right divided bodies 62 and 63. The left and right divided bodies 62, 63 are connected to each other by a thin band-shaped portion 64 formed integrally so as to be bendable. When assembled, the band-shaped portion 64 is bent into a box shape, and the battery pack 61 is stored in the assembled state. It has a space 65 and a handle space 67 which is separated from the storage space 65 and is opened to the outside to form a handle portion 66.

Ribs 62f and 63f and concaves and convexes 62g and 63g are formed in the vertical direction on the outer sides of the left and right divided bodies 62 and 63 so that the ribs are not bent by the load from the vertical direction. Furthermore, on the outer side walls of the left and right divided bodies 62, 63,
Stepped portions 62k and 63k are formed respectively, and the shape is made different from the straight portions 62l and 63l on the inner side wall to prevent the battery pack 61 from being inserted backward.

Further, locking ribs 62h1, 62h2, 63h1, 63h2 for holding the battery pack 61 at the upper and lower positions are integrally formed inside the left and right divided bodies 62, 63. Battery pack 6 between 62h2 and between locking ribs 63h1 and 63h2.
1 is retained. Further, dampers 200 and 201 are provided inside the left and right divided bodies 62 and 63, and the dampers 200 and 201 sandwich the battery pack 61 from both sides to elastically support it and prevent rattling. .

In the inner box 32, the battery pack 61 is stored in the storage space 65, and the concave portion 62a and the convex portion 63a of the joint portion between the divided bodies 62 and 63 are butted and engaged with each other to form the bottom side and the grip portion 66. The pin holes 63b, 6 formed in the
Bolts 68, 69, and 70 are inserted from 3c and 63d, and screwed and coupled to the boss portions 62b, 62c, and 62d. The grip portion 66 is formed with a grip hole 202 into which a user's finger can be inserted and held, and the grip hole 202 communicates with the grip space 67.

A charging window 63e for inserting a charging connector is formed in the divided body 63, and the charging connector 203 is made to correspond to this charging window 63e, and screws 204 are screwed to boss portions 63m formed on both sides of the charging window 63e. Fixed. A connection connector (not shown) can be inserted from the charging window 63e to be electrically connected to the charging connector 203 housed inside the inner box 32. In addition, a boss portion 63n is formed in the lower portion of the divided body 63, and a female connector 205 is applied to the boss portion 63n with a screw 206 applied thereto.

In this way, in the assembled state of the left and right divided bodies 62, 63, the handle space 67 opened to the outside and separated from the storage space 65 is integrated with the inner box 32 without using a special member. The handle portion 66 is formed on the bottom portion, and the number of parts is reduced to improve the assemblability of the battery with a compact structure. In addition, by forming the grip portion 66 integrally with the inner box 32, the inner box 32 can be given directionality depending on the position of the grip portion 66, which may be incorrect when the battery is removed from the vehicle and charged. It is possible to prevent the inner box 32 from being stored in the outer box 31 in the direction.

Further, the inner box 32 is replaced by holding the grip portion 66, but the grip portion 66 is offset to one side, and the inner box 32 is brought into a state along the outer box 31 with the grip portion 66 held. It can be inserted smoothly. Further, when removing the inner box 32, the grip portion 66 is grasped and lifted by a hand, but the upper end portion of the outer box 31 has a portion 31x corresponding to the grip portion 66.
Is formed so as to be below the position of the handle portion 66 so that it does not get in the way when the handle portion 66 is held by hand.

The battery pack 61 is arranged by dividing a plurality of rechargeable battery cells 70 by a partition plate 71 having a vertical partition 71a and a horizontal partition 71b. 70 are electrically connected in series, and the plurality of electrically connected battery cells 70 are integrally packaged together with a charging lead wire 72a and a discharging lead wire 72b with a shrink film 73. In the battery pack 61, the battery cell 70 is not arranged in a space 74 at a portion corresponding to the handle space 67 forming the handle portion 66 of the inner box 32.
Is formed.

As described above, by arranging the plurality of battery cells 70 by partitioning them by the partition plate 71, the plurality of battery cells 70 are positioned and the shrink film 73 is surely wrapped. Further, damage due to interference between the battery cells 70 can be reduced, and the partition plate 71 has a heat dissipation effect, and also short circuit between the battery cells 70 can be prevented.

The shrink-wrapped battery pack 61 is electrically connected to the inner box 32 while being housed in the inner box 32 having the grip portion 66.
The inner box 32 is configured to be housed in the outer box 31 fixed to the vehicle side. The charging lead wire 72a is led out upward and connected to the charging connector 203, and the discharging lead wire 72b is led out downward and connected to the female connector 205.

Inside the lid 45 of the outer box 31,
As shown in FIG. 14, a pair of locking ribs 45k are formed,
Further, a boss portion 45t is formed between the pair of locking ribs 45k. The boss portion 45 is provided in the recess 45u in the upper portion of the lid 45.
The rubber damper 210, which is an elastic member inserted through t
Is provided, and the washer 211 is fixed to the boss portion 45t with a screw 212.

The outer box 31 and the inner box 32
And the lid 45 is closed, the rubber damper 210 provided inside the lid 45 presses the upper surface of the inner box 32,
The inner box 32 is configured so as to be surely biased in the electrical connection direction, and the inner box 3 along with traveling is
(2) Vibration can be reduced, electrical connection failure can be prevented, and noise due to vibration can be reduced. Further, although the rubber damper 210 suppresses the rattling of the inner box 32 in the vertical direction, even if the rubber damper 210 is largely rattled by a sudden vibration or the like, it is held by the pair of locking ribs 45k.

As shown in FIG. 21, a long pressing rib 45s may be integrally provided inside the lid 45 to press the upper surface of the inner box 32 with the lid 45 closed. With such a structure, the inner box 32 can be biased in the electrical connection direction.

In this way, the lid 45 of the outer box 31 is
The rubber damper 210 and the pressing rib 4 which are pressing parts inside the
5s is provided, and the inner box 32 housed in the outer box 31 is pressed with the lid 45 of the outer box 31 closed to urge the inner box 32 in the direction of electrical connection, reducing vibrations due to running. As a result, poor electrical connection can be prevented and noise due to vibration can be reduced.

In addition, by pressing the grip 66 of the inner box 32 with the rubber damper 210 or the pressing rib 45s with the lid of the outer box 31 closed, the grip 66 is elastically deformed to ensure the electrical operation. Can be urged in the physical connection direction. In addition, by pressing the upper surface of the inner box 32 with the rubber damper 210, which is a pressing portion, or the pressing ribs 45s while the lid 45 of the outer box 31 is closed, the elastic deformation of the entire upper surface ensures that the inner box 32 is attached in the electrical connection direction. It can be energized.

The lid 45 of the outer box 31 can be opened and closed with a pin 45y arranged on the rear side of the vehicle body as a fulcrum, and the handle portion 66 of the inner box 32 housed in the outer box 31 on the vehicle body front side of the lid 45 can be opened and closed. A lock mechanism A for restricting the opening of the lid 45 at a position corresponding to the front space
Since the lid 45 can be opened and closed with the rear side of the vehicle body as a fulcrum, the range of movement of the lid 45 is not restricted by the seat pillar tube 9, and the opening degree of the lid 45 can be secured. Further, since the lock mechanism A is arranged at a position corresponding to the front space of the handle portion 66 of the inner box 32, it is not necessary to separately secure a space for disposing the lock mechanism A.

As described above, the plurality of rechargeable battery cells 70 are electrically connected, the plurality of electrically connected battery cells 70 are integrally packaged by the shrink film 73, and the shrink-wrapped battery pack is formed. 61 is electrically connected to the inner box 32 in a state of being housed in an inner box 32 integrally formed with a grip portion 66, and the inner box 32 is configured to be housed in an outer box 31 fixed to the vehicle side. By integrally packaging the plurality of battery cells 70 that are electrically connected with the shrink film 73, the plurality of battery cells 70 can be compactly and reliably held. Further, the compact and shrink-wrapped battery pack 61 is housed in the inner box 32 integrally formed with the grip portion 66, so that not only the entire inner box can be made compact, but also the grip portion 66 of the inner box 32 when charging the battery.
The outer box 31 can be easily taken in and out, and the structure thereof is simple, so that it can be easily carried.

Further, the plurality of battery cells 70 are separated from each other by the partition plate 7.
By dividing and arranging by 1, the plurality of battery cells 70 are electrically connected to each other, and the plurality of battery cells 70 are divided by the partition plate 71 and arranged.
The plurality of battery cells 70 are positioned, and the shrink film 73 is surely wrapped. Further, damage due to interference between the battery cells 70 can be reduced, and the partition plate 71 has a heat dissipation effect, and also short circuit between the battery cells 70 can be prevented.

Further, the inner box 32 is integrally formed by a flexible member, the inner box 32 has a divided structure of left and right divided bodies, and a storage space 65 for storing the battery pack 61 in the assembled state of the left and right divided bodies. And a handle space 67 which is separated from the storage space 65 and is opened to the outside to form a handle portion 66. In the assembled state of the left and right split bodies, the handle space 67 is separated from the storage space 65. With the handle space 67 opened to the inside, the handle portion 66 is formed integrally with the inner box 32 without using a special member, and the number of parts is reduced, and the assembling property of the battery is improved with a compact structure. Further, by forming the grip portion 66 integrally with the inner box 32, the inner box 32 can be given directionality depending on the position of the grip portion 66, and the inner box 32 can be prevented from being stored in the wrong direction. .

Further, a handle space 67 forming the handle portion 66.
Is provided on one side of the upper portion with respect to the storage space 65 for storing the battery pack 61, and the grip portion 6 of the inner box 32 is provided.
6 is offset so that it can be easily stored in the outer box 31 by holding the grip portion 66, and there is directionality when storing in the outer box 31 when charging the battery, and it is possible to store it in the wrong direction. To be prevented.

[0062]

As described above, the invention according to claim 1 electrically connects a plurality of rechargeable battery cells,
The plurality of electrically connected battery cells are integrally packaged with a shrink film, and the shrink-wrapped battery pack is electrically connected to the inner box in a state of being housed in an inner box integrally formed with a grip portion,
This inner box is configured to be housed in an outer box fixed to the vehicle. Since the plurality of electrically connected battery cells are integrally packaged with the shrink film, the plurality of battery cells can be held compactly and reliably. In addition, the compact and shrink-wrapped battery pack can be made compact by storing the handle in an inner box that has an integrated handle, and the handle of the inner box can be handled when charging the battery. It is easy to carry out and put in and out of the outer box, and has a simple structure and is easy to carry. Also, of the left and right divided bodies
In the assembled state, it is opened to the outside separated from the storage space.
Due to the handle space, it can be installed without using special members.
The handle part is formed integrally with the nabox to reduce the number of parts.
Reduced and compact structure improves battery assembly
It Also, the handle part should be formed integrally with the inner box.
The direction of the inner box depends on the position of the handle.
Can be stowed and the inner box can be stowed in the wrong direction
Can be prevented.

According to the second aspect of the invention, since the plurality of battery cells are arranged by being divided by the partition plate, the plurality of battery cells are positioned and the shrink film is surely wrapped. Also, damage due to interference between battery cells is reduced, and the partition plate has a heat dissipation effect,
A short circuit between battery cells can also be prevented.

[0064]

According to the third aspect of the present invention, since the handle space forming the handle portion is provided on one side of the upper portion with respect to the storage space for storing the battery pack, and the handle portion is offset, the handle portion can be easily held. The outer box can be stored in the outer box, and the direction in which the battery is stored in the outer box when the battery is charged can be changed, so that the wrong direction can be prevented from being stored.

According to the fourth aspect of the invention, the inner box is pressed by the pressing portion with the lid of the outer box closed, so that the inner box is biased in the electrical connection direction, and vibration due to running is reduced. As a result, poor electrical connection can be prevented and noise due to vibration can be reduced.

According to a fifth aspect of the present invention, the pressing portion provided inside the lid of the outer box is composed of an elastic member provided inside the lid, and the elastic member is provided with the lid of the outer box closed. , The inner box is surely biased in the electrical connection direction, vibration due to running can be reduced, electrical connection failure can be prevented, and noise due to vibration can be reduced.

According to a sixth aspect of the present invention, the pressing portion provided inside the lid of the outer box is configured by a pressing rib integrally formed inside the lid, and is integrated in a state where the lid of the outer box is closed. With the pressing rib formed on, the inner box is urged in the electrical connection direction with a simple structure, vibration due to running can be reduced, and electrical connection failure can be prevented,
Noise due to vibration can be reduced.

According to the seventh aspect of the invention, since the grip portion of the inner box is pressed with the lid of the outer box closed, the elastic deformation of the grip portion of the inner box biases the inner box in the direction of electrical connection to cause vibration during traveling. It is possible to reduce the noise and prevent electrical connection failure, and reduce noise due to vibration.

According to the eighth aspect of the invention, since the upper surface of the inner box is pressed by the pressing portion with the lid of the outer box closed, the elastic deformation of the entire upper surface biases the inner box in the electrical connection direction. In addition, it is possible to reduce vibration due to traveling, prevent electrical connection failure, and reduce noise due to vibration.

In the invention according to claim 9 , the lid of the outer box can be opened and closed with the rear side of the vehicle body as a fulcrum, and the front side of the lid corresponds to the front space of the handle portion of the inner box housed in the outer box. Since the lock mechanism for restricting the opening of the lid is arranged at the position, the lid of the outer box can be opened and closed with the rear side of the vehicle body as a fulcrum, and the opening degree of the lid of the outer box can be secured. Further, since the lock mechanism is arranged at a position corresponding to the front side space of the grip portion of the inner box, it is not necessary to separately secure a space for disposing the lock mechanism.

[Brief description of drawings]

FIG. 1 is a left side view of an electric bicycle.

FIG. 2 is a cross-sectional view of a vehicle battery storage device.

FIG. 3 is a sectional view taken along the line III-III in FIG.

FIG. 4 is a left side view of the outer box.

FIG. 5 is a right side view of the outer box.

FIG. 6 is a rear view of the outer box.

7 is a sectional view taken along line VII-VII of FIG.

FIG. 8 is a plan view of an outer box.

9 is a sectional view taken along line IX-IX in FIG.

FIG. 10 is an enlarged view of a charging window portion of the outer box.

11 is a sectional view taken along line XI-XI of FIG.

12 is a sectional view taken along line XII-XII in FIG.

FIG. 13 is a left side view of the lid.

14 is a sectional view taken along line XIV-XIV in FIG.

FIG. 15 is a plan view of an inner box.

FIG. 16 is a development view of the outer side with the inner box open.

FIG. 17 is a developed view of the inner side of the opened inner box.

18 is a sectional view taken along line XVIII-XVIII in FIG.

FIG. 19 is a side view of a shrink-wrapped battery.

20 is a sectional view taken along line XIX-XIX in FIG.

FIG. 21 is a sectional view of another embodiment of the lid.

[Explanation of symbols]

31 outer box 31g insertion opening 32 inner box 45 lid 61 battery pack 66 Handle 70 battery cells 73 Shrink film

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Hiroyuki Yamauchi Inventor Hiroyuki Yamauchi, 2500, Shinkai, Iwata, Shizuoka Yamaha Motor Co., Ltd. (56) References JP-A-54-75712 (JP, A) JP-A-6-219358 ( JP, A) JP-A-6-87485 (JP, A) JP-A-5-319104 (JP, A) JP-A-4-274160 (JP, A) JP-A-3-34271 (JP, A) (58 ) Fields surveyed (Int.Cl. ⁷ , DB name) B62M 23/02 B60R 16/04

Claims (9)

(57) [Claims] 1. An outer box having an insertion opening at the upper end that is opened and closed by a lid is fixed to the vehicle side, and an inner box containing a battery is housed in the outer box so as to be able to be taken in and out vertically from the insertion opening, When the inner box is housed in the outer box, a connection mechanism is provided between the inner box and the outer box to electrically connect the battery side and the vehicle side, and the lid is closed. The inner box is configured to be biased in the electrical connection direction , a plurality of rechargeable battery cells are electrically connected, and the plurality of electrically connected battery cells are integrally packaged with a shrink film, This shrink-wrapped battery pack is electrically connected to the inner box while being housed in the inner box having a handle portion integrally formed. Is connected to, the inner box is retractable configured on the outer box which is fixed to the vehicle side, wherein the inner box is divided right and left, which is formed of a flexible member
The split structure is divided into split bodies, and the assembled state of the left and right split bodies
And a storage space for storing the battery pack.
Separated from the space and opened to the outside to form a handle
An electric bicycle battery storage device having a handle space . 2. The battery accommodating device for an electric bicycle according to claim 1, wherein the plurality of battery cells are arranged by being divided by a partition plate, and the plurality of battery cells are electrically connected to each other. 3. A handle space to form the handle portion, provided in the upper portion on one side against the accommodating space for accommodating the battery pack, the electric of claim 1, wherein the offset of the handle portion Bicycle battery storage device. 4. A pressing portion is provided inside the lid of the outer box, and the inner box accommodated in the outer box is pressed by the pressing portion with the lid of the outer box closed, the inner box The battery accommodating device for an electric bicycle according to any one of claims 1 to 3 , wherein the battery is configured to be urged in an electrical connection direction. 5. The battery storage device for an electric bicycle according to claim 4 , wherein the pressing portion provided inside the lid of the outer box is formed of an elastic member provided inside the lid. 6. The battery accommodating device for an electric bicycle according to claim 4 , wherein the pressing portion provided inside the lid of the outer box comprises a pressing rib integrally formed inside the lid. 7. With the lid of the outer box closed,
Described in the handle portion of the inner box is pressed by the pressing portion, any one of claims 4 to 6, characterized by being configured to bias the electrical connection direction by the elastic deformation of the handle portion Battery storage device for electric bicycle. 8. With the lid of the outer box closed,
7. The upper surface of the inner box is pressed by the pressing portion, and is elastically deformed in the entire upper surface so as to be urged in the electrical connection direction, according to any one of claims 4 to 6 . Battery storage device for electric bicycles. 9. The lid of the outer box can be opened and closed with the rear side of the vehicle body as a fulcrum, and on the vehicle body front side of the lid, at a position corresponding to a front space of a handle portion of the inner box housed in the outer box, electric bicycle battery housing device according to any one of claims 1 to 8, characterized in that a locking mechanism for restricting the opening of the lid.