JP2003231487A - Housing structure for electric wiring connector of power-assisted bicycle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a simple and inexpensive structure with favorable wear resistance and easy manufacture and maintenance. <P>SOLUTION: The housing structure for the electric wiring connector of a power-assisted bicycle is provided with a cover body 40 covering a space S surrounded by a crankshaft housing frame member 13, both chain stays 15 and a bridge member 18 from a lower side, and the connector for electric wiring of the power-assisted bicycle housed in the space. The cover body 40 is provided with a bottom face part 42 covering the space S from below, a pair of holding pieces 43 extending from both side parts of the bottom face part 42 and elastically holding both chain stays 15, and a fixing part 44 extending from a rear part of the bottom face part 42 and fixed to the bridge member 18 of a frame. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to an electric bicycle such as an electric assist bicycle. In particular, it relates to a storage structure for an electric wiring connector of an electric bicycle.

[0002]

2. Description of the Related Art In an electric bicycle, a drive unit for giving propulsive force, a rechargeable battery pack detachably mounted,
It has a controller for performing electrical ON / OFF operations, and has installed electrical wiring to connect these parts.

[0003]

Since the electric bicycle travels outdoors, it is important that the electric parts and the electric wiring have a structure and arrangement having good weather resistance rather than the outside air and rainwater.
On the other hand, there is a problem in that the structure is complicated or the maintenance property is deteriorated in order to improve the weather resistance.

The present invention has been made to solve the above problems, and has good weather resistance, a simple structure and low cost, and an electrical connection having a structure that is easy to manufacture and maintain. An object is to provide an electric bicycle including a structure and electric wiring.

[0005]

The main constitution of the present invention is as follows.
A bicycle frame including a pair of chain stays extending rearward from the crankshaft housing frame member for supporting a rear wheel, and a bridge member bridged between the chain stays for fixing a rear wheel mudguard, An electric bicycle including a cover body that covers a space surrounded by the storage frame member, the both chain stays, and the bridge member from below, and a connector for electric wiring of the electric bicycle stored in the space. A housing structure for an electrical wiring connector, wherein the cover body includes a bottom surface portion that covers the space from below,
A pair of holding pieces extending from both sides of the bottom surface portion and elastically holding the two chain stays, and a fixing portion extending from a rear portion of the bottom surface portion and fixed to the bridge member of the frame are provided. It is characterized by

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is an external view showing an electric bicycle which is an embodiment of the present invention, which is an electric assisted bicycle which is one of electric bicycles. This power-assisted bicycle has a rotary drive unit 1 that has an electronic control mechanism located at the center of the rear wheels.
The rechargeable battery pack 2 is detachably arranged on the rear side of the seat tube in the vehicle body frame, and the controller 3 is attached to the upper part of the handle. Although a detailed wiring structure will be described later, an electric wiring 4 is provided so that the electric power output from the battery pack 2 can be converted into power by the rotation driving unit 1 and various functions can be set by the controller 3. .

Next, the mechanical and electrical structures of the battery pack 2 and the battery holder 30 provided on the rear side of the seat tube 11 of the bicycle frame 10, which is a feature of the present invention, will be described in detail.

The bicycle frame 10 includes a seat tube 11 which is provided under the saddle with its upper side inclined backward.
An upper down tube 12 that is welded in the middle of the seat tube 11 and extends forward, a substantially circular pipe-shaped crankshaft housing frame member 13 that houses the crankshaft that is welded to the lowermost portion of the seat tube 11, and a forward welded here. A lower down tube 14 that extends, a pair of chain stays 15 welded to the rear of the crankshaft housing frame member 13 and extended to support the rear wheel, and a chain stay that is welded to the upper end of the seat tube 11 and extends obliquely rearward and downward. A pair of seat stays 16 connected to the rear end of the seat 15 are provided.
The members of these frames 10 are made of steel that is usually used for bicycle frames.

Further, in order to mount the battery holder 30, there is provided a plate-like pedestal 17 installed in the lower rear portion of the seat tube 11 so as to be substantially perpendicular to the extending direction of the seat tube 11. ing. Then, as can be seen in FIG. 3, the plate-like pedestal 17 includes the seat tube 11
It is also welded to both chain stays 15.

More specifically, the plate-like pedestal 17 is a substantially rectangular plate as seen from above, has screw holes 17N for screwing the battery holder 30 near the four corners, and will be described later. Frame side electric terminal 7, battery holder 30
A cutout 17T for passing the U-shaped cover 33L is provided. As shown in FIG. 3, when viewed from the side, the side surface of the plate-shaped pedestal 17 is inclined rearward and obliquely.

On the rear side of the plate-like pedestal 17, there is a bridge member 18 which is bridged between both chain stays 15 and welded. FIG. 4 is a perspective view of only the bridge member 18 when viewed from the rear, and the bridge member 18 is formed by bending both ends of the bridge member 18 and the upper surface bridge portion 18U that is welded onto the chain stay 15. And a lower plate portion 18D that extends downward. A screw hole 18C for screwing a cover body 40 described later is provided at the center of the upper surface bridge portion 18U, and the rear wheel mudguard 5 is fixed near the center of the lower plate portion 18D. The lower plate portion 18D has a through hole 18T through which a wire for the rear brake and the rear wheel transmission is held so as to be held therein. And frame 1
As can be seen in FIG. 2, the bridge member 18 welded to 0 fixes the rear wheel mudguard 5 using the hole 18M,
The fixing portion 44 of the cover body 40 is screwed.

FIG. 5 is a view showing the battery pack 2 of this embodiment, and FIG. 5 (a) is a perspective view corresponding to the battery pack 2 mounted and seen from the chain ring 6 side. is there. 5 (b) corresponds to a view from the opposite side of the chain ring 6, FIG. 5 (c) corresponds to a view from the rear side, and FIG. 5 (d) corresponds to a view from below. It is a figure. Cross section is almost rectangular (about 55 mm short side, about 75 m long side)
m), which has a prismatic shape, and is provided with a handle 21 to be used for carrying around at the upper end, and has a total height of about 27 cm.

The battery pack 2 has a resin housing that forms the outside, and the lower portion thereof is locked by the battery holder 30, so that the lower side surface 2 is slender due to the step portion.
Equipped with 2. Further, when mounted, it has an oval-shaped projection 22T in front view, which is close to the side of the lower side surface 22 opposite to the chain ring 6 side.

As shown in FIGS. 2 and 5, a pair of battery-side electric terminals 23 are provided in the lower side surface 22 for receiving and electrically connecting the frame-side electric terminals 7 whose ends are rod-shaped. .

Box 2 constituting the battery side electric terminal 23
In 3B, inside the battery pack 2, the metal terminal plate 23T is urged in the lower surface direction by a spring while facing the lower surface.
And the tip of the frame-side electric terminal 7 has the battery pack 2
It will pass through the opening 2T on the bottom surface of the and contact the metal terminal plate 23T.

Further, it has a charging terminal 24 adjacent to the upper side of the lower side surface 22 in which the battery side electric terminal 23 is accommodated and facing the outside of the rear side with the battery pack 2 mounted. A cylindrical rechargeable battery 25 is built in above the charging terminal 24 (see FIG. 2).

A groove is provided on the upper surface of the battery pack 2, and a hook 26 is provided inside the groove. The battery pack 2 having such a configuration is used in the battery holder 3 of the bicycle.
When the battery pack is used by being attached to 0, electric power is output from the battery side electric terminal 23, and when the battery pack 2 is charged, the battery pack 2 is detached and a separately prepared charger connection outlet (not shown) is used. No.) is inserted into the charging terminal 24 of the battery pack 2 to be charged.

Next, the battery holder 30 will be described. The battery holder 30 is made as a separate component using weather resistant AAS resin or the like.
As shown in FIG. 5, in order to lock the lower side surface 22 of the battery pack 2, except for the opposite side of the chain ring, the outer peripheral wall 31
have. Further, in the front outer peripheral wall 31F and the rear outer peripheral wall 31B, which are the front and rear outer peripheral walls 31, a notch portion for guiding and locking the protrusion 22T of the lower side surface 22 of the battery pack 2 to the opposite side of the chain ring 6. 32 are provided.
As shown in FIG. 6, the front outer peripheral wall 31 of the outer peripheral wall 31.
F, the rear outer peripheral wall 31B is higher than the side outer peripheral wall 31C on the chain ring 6 side. On the opposite side of the chain ring, although there is no outer peripheral wall that locks the lower side surface 22 of the battery pack 2, a wall portion 34 that is continuous with the front and rear outer peripheral walls 31 is formed.

The bottom portion 33 of the battery holder 30 is
An opening 33H is provided near the corner for screwing the battery holder 30 into the screw hole 17N of the plate-shaped base 17. Further, it has a through hole 33T through which the rod-shaped frame-side electric terminal 7 passes, and a water drain hole 33W is provided on the rear end side for draining water accumulated at the bottom of the battery holder 30.
Is provided.

Further, the side outer peripheral wall 31C extends downward and extends downward to the upper portion of the chain stay 15.
D (see FIGS. 2, 12, and 13). The front outer peripheral wall 35F extends downward to the upper portion of the crankshaft housing frame member 13 at the left side portion of the seat tube 11 when viewed from the front in the state where the front outer peripheral wall 35F is attached to the frame 10 (see FIG. 11). It has 31M. Figure 6
(B) is a perspective view of the vicinity of the through hole 33T of the bottom surface portion 33 as viewed from the bottom surface side, and has a U-shaped cross section in order to cover the lower front of the attached rod-shaped frame-side electric terminal 7. It has a cover 33L.

Further, it has an upward extending portion 31U extending upward from the rear outer peripheral wall 31B, and in order to cover the charging terminal 24 of the battery pack 2 when the battery pack 2 is mounted, this The upward extending portion 31U is located at a position facing each other (see FIGS. 2 and 9).

On the opposite side of the battery holder 30 from the chain ring, a side cover 35 made of a PP resin material is formed as a separate member.
Are connected and retained. As shown in FIG. 7, which is a perspective view of the battery holder 30 to which the side cover 35 is attached, the side cover 35 includes the notches 32 of the front outer peripheral wall 31F and the rear outer peripheral wall 31B of the battery holder 30. The front cover 35F and the rear cover 35B cover the front and rear directions.

In the front outer peripheral wall 31F and the rear outer peripheral wall 31B, the peripheral portions 32A of the notches 32 have symmetrical shapes with the middle of both portions as the center. Slide rails 32S are provided on the upper portions of both the peripheral portions 32A, and rail portions (not shown) engaging with the front cover portions 35F and the rear cover portions 35B of the side cover 35 are provided. And rail 3
2S is slid and inserted to attach the side cover 35,
The front cover portion 35 is provided in the recess 32A provided on both sides 32A.
F, elastic locking claw 35 provided inside the rear cover portion 35B
When N is locked, the side cover 35 is fixed to the battery holder 30.

Further, the side cover 35 has an opening 35H at the upper portion of the side cover 35 so that the battery pack 2 can be easily inserted, and the notch 32 is exposed to the outside by this opening 35H. Facing. And the front cover 35F is
An extension portion 35M that extends downward and extends to the upper portion of the crankshaft housing frame member 13 is provided, and further extends below the opening portion 35H and connects an extension portion 35D that extends to the upper portion of the chain stay 15.

Next, the cover body 40 will be described.
As shown in FIGS. 1 and 2, the cover body 40 includes a crank housing frame member 13, both chain stays 15,
The space S surrounded by the bridge member 18 is installed so as to cover from below.

FIG. 8 is a perspective view showing only the cover body 40.
As shown in, the cover body 40 is made of a PP resin material and is integrally molded. The cover body 40 has an outer peripheral wall 41, covers the space S from below, and includes a bottom surface portion 42 that is trapezoidal in plan view. And the bottom part 4
2 extending from both sides of the chain and elastically holding both chain stays 15
It has a pair of holding pieces 43 for holding and holding. It has a fixing portion 44 which extends from the rear portion of the bottom surface portion 42 and is fixed to the bridge member 18 of the frame 10 (see FIG. 2). The fixing portion 44 is provided with a hole 44H through which a mounting screw, which is used separately, penetrates, and a fixing wall portion 44W rising from the rear side of the bottom surface portion 42. Fixed wall 44W
As shown in FIG. 8, is installed on the inner side of the chain stay 15 located on the rear side of the bottom face portion 42 so as to be adjacent to the chain stay 15 so that the passage portion T through which the electric wiring 4 passes can be formed. Fixed wall portion 44 adjacent to the chain stay 15
The lateral dimension of W is reduced. On the other hand, on the chain ring side, the lateral dimension of the fixed wall portion 44W is increased so that the fixed wall portion 44W can come close to or contact the chain stay 15.
Further, as can be seen in FIG. 9, the upper end of the outer peripheral wall 41 on the side portion is attached in a state of being in contact with or in the vicinity of the lower end of the chain stay 15. Here, the pair of clamping pieces 43
In the above, the chain stay 15 is sandwiched and held from the outside, but instead of this, the chain stay 15 can be sandwiched and held from the inside. Although the bottom surface portion 42 of the cover body 40 is provided with the outer peripheral wall 41,
It may be a plate-shaped bottom portion without the outer peripheral wall 41.

On the other hand, a recess 41T is provided above the front outer peripheral wall 41 of the bottom surface portion 42 so that the electric wiring 4 can pass therethrough. In addition, in the vicinity of the four corners of the bottom surface portion 42, in order to drain water accumulated in the bottom surface portion 42, a drain hole 42H
Is equipped with. In addition, in FIG. 8, the step portion 41D of the outer peripheral wall 41 located at the front side is a welding portion of the crankshaft housing frame member 13 and the chain stay 15 with the cover body 40 installed in the space S (FIG. 8). This is for avoiding (not shown). And the outer peripheral wall 41 on one side
The indented portion 41S provided at is for avoiding the plastic band (not shown) when the plastic band (not shown) is separately wound around the chain stay 15 together with the electric wiring 4 and stopped.

As described above, the battery pack 2, the battery holder 30, and the cover body 40, which are the main parts of this embodiment, have the above-described structure. Therefore, when the battery pack 2 is assembled to the bicycle frame 10, it becomes as follows. .

On the plate-shaped pedestal 17 that is provided so as to be inclined to the frame 10, the screw passes through the opening 33H of the bottom surface portion 33 of the battery holder 30, and the screw hole 1 of the plate-shaped pedestal 17 is formed.
It is attached to 7N and the battery holder 30 is installed.

Then, as shown in FIG. 2, a pair of frame-side electric terminals 7 each having a rod-shaped tip and a threaded lower portion pass through the through holes 33T of the battery holder 30 and are fixed with screws. , Protrudes to the back side of the battery holder 30. Then, as described with reference to FIG. 6B, the electrical wiring 4 guided from the open side of the U-shaped cross section of the cover portion 33L of the battery holder 30 is screwed to the lower portion of the frame-side electrical terminal 7. Has been done.

The bottom portion 42 of the cover body 40 has a space S.
Is covered from below. Then, the pair of holding pieces 43 holds and holds both the chain stays 15 from the outside, and the fixing portions 44 are inserted into the screw holes 18C of the bridge member 18 of the frame 10.
The fixing portion 44 of the cover body 40 is fixed by stopping the screw that has passed through the hole 44H.

In this space S, a pair of thick output wires 51 and a waterproof connector 51C which are connected to the pair of frame side electric terminals 7 and output to the rear rotary drive unit 1 and a pair of frame side electric terminals 7 are connected. Then, the thin output line 52 and the waterproof connector 52C that are output as a power source to the front controller 3 and the two signal lines 53 and the waterproof connector 53C from the front controller 3 are arranged. Further, although each connector uses a simple waterproof type connector, a non-waterproof normal connector or a completely waterproof type connector may be used if necessary.

More specifically, as shown in FIG. 10 for explaining the connection state for electrical connection, the fine output line 52 and the signal line 53 leading to the front controller 3 are united and the outside is covered with an insulating material. The electric wiring 4F reaches the controller 3. Further, the thick output line 51 and the signal line 53 reaching the rear rotary drive unit 1 are brought together to reach the rotary drive unit 1 as an electric wiring 4B whose outside is covered with an insulating material.

Regarding the mounting operation of the battery pack 2, with the side cover 35 attached (see FIG. 7), the lower side surface 2 of the battery pack 2 is inserted through the opening 35H of the side cover 35.
After inserting the pair of two projections 22T into the front and rear cutout portions 32, respectively, and rotating them around this, the hook portion 26 on the upper surface of the battery pack 2 is attached above the seat tube 11. Attached to the mounting portion 8. In detail,
The mounting portion 8 is provided with an engaging portion 8C that can move in and out in the vertical direction (see FIG. 5), and the handle portion 21 is rotated to press the hook portion 26 against the engaging portion 8C for engagement. The engaging portion 8C is locked on the inner side of the hook portion 26 in a state where the portion 8C slides upward, rides over the upper end of the hook portion 26, and then extends downward.

When removing the battery pack 2,
By inserting a key (not shown) into the attachment portion 8 and rotating the attachment portion 8C in the upward direction, a person tilts the handle 2 of the battery pack 2 to the opposite side of the chain ring, so that the battery The pack 2 can be removed.

Hereinafter, the point that the weather resistance of this embodiment is good, that is, the effect of mud, rainwater, etc. can be reduced will be described. A front outer peripheral wall 31F and an extending portion 31M are provided in front of the battery holder 30, and a front cover portion 35F and an extending portion 35M are provided in front of the side cover 35. Therefore, for mud and rainwater coming from the front,
Since these portions, the front of the seat tube 11, and the front of the crankshaft housing frame member 13 are contacted, it is possible to prevent the electric components from entering the lower side of the battery holder 30 (see FIG. 11). Further, on the lower side of the battery holder 30, the U-shaped covering portion 33L in cross section around the front is covered at the lower part of the frame-side electric terminal 7 against mud, rainwater, etc., which may slightly enter. (Fig. 6 (b), Fig. 12, Fig. 1)
3)), it is possible to prevent the deposition directly.

On the side of the chain ring 6 located on the side of the battery holder 30, although oil, mud, rainwater, etc. fly from the chain ring 6 and the chain, the battery holder 3
Since the side outer peripheral wall 31C and the downward extending portion 31D extending downward are provided on the side of the chain ring 6 of 0,
It is possible to prevent the electric parts from entering the underside of the battery holder 35 (see FIGS. 11, 12, and 13).
In this embodiment, the chain cover 6C does not completely cover the chain ring 6 and the chain, but covers the outer side and the upper and lower sides of the chain ring 6, and the inner side is not covered. As shown in, inside,
Two chain cover holding portions 6S attached to the chain cover 6C are held on the side surface of the crankshaft housing frame member 13. Therefore, in the present embodiment, a large amount of oil, mud,
Although rainwater or the like flies, since the side outer peripheral wall 31C and the downward extending portion 31D extending downward are provided, it can be prevented from entering the lower side of the battery holder 35.

Furthermore, since the charging terminal 24 located on the rear side of the battery pack 2 is covered with the upward extending portion 31U of the battery holder 30, it is possible to effectively prevent the charging terminal 24 from being covered with mud, rainwater, or the like. Yes (see FIGS. 2 and 9). Since the charging terminal 24 of the battery pack 2 is arranged rearward, it is possible to prevent rainwater falling particularly from the front from directly hitting the charging terminal 24 when traveling under rainy weather. Furthermore, since the battery pack 2 is inclined obliquely rearward along the seat tube 11, the upper part of the battery pack 2 serves as a cover for rainwater and the like falling from above, and the rear part of the battery pack 2 is covered. Charging terminal 24 arranged below
Is a structure that is hard to get wet.

Further, since the cover body 40 covers the space S from the lower side, the electric wiring and the connector arranged here, the battery holder 30 and the frame side electric terminal 7 on the back surface.
Moreover, it is possible to prevent dirt, rainwater, and the like from coming from below. Especially, in this space, mud,
Since rainwater enters, it can effectively prevent intrusion. Since the cover 40 is attached using the chain stay 15 and the bridge member 18 which are included in a normal bicycle frame, the cost is low and the assembly is easy. Also, during repair and maintenance, the cover body 4
0 can be easily removed.

As described above, in this embodiment, mud,
It is possible to prevent rainwater and the like from adhering to the electric parts, and the battery holder 30 of this embodiment has the following characteristic points. The battery holder 30 includes a front outer peripheral wall 31F and an extending portion 31M below the front outer peripheral wall 31C, a side outer peripheral wall 31C and a lower extending portion 31D extending downward, a rear outer peripheral wall 31B, and an upper extending portion extending above this. Although it has the projecting portion 31U, since it is molded as one body, it is low in cost, and assembly and maintenance work is easy, and the battery holder 30
Has a function of holding the battery pack 2 and a structure for preventing rainwater.

[0041]

As described above, in the present invention, since the cover body covers the space from the lower side, the electric wiring and the connector housed therein are exposed to the mud, rainwater, etc. from the lower side. Can be prevented. The cover body is attached using the chain stay and the bridge member, which are included in a normal bicycle frame, so that the cost is low and the assembly is easy.
Further, the cover body can be easily removed even at the time of repair or maintenance.

In addition, the battery holder is provided with a downward extending portion whose outer peripheral wall extends downward on the chain ring side,
The side cover that is attached to the battery holder on the opposite side of the chain ring has an extension that extends downwards to prevent dirt, rainwater, etc. from entering on the lower back side of the battery holder from both sides. can do.

Furthermore, an extension portion extending downward is provided in front of the outer peripheral wall of the battery holder, and an extension portion extending downward is provided in front of the side cover. ,
It is possible to prevent mud and rainwater from entering.

[Brief description of drawings]

FIG. 1 is an external view of an electric bicycle that is an embodiment of the present invention.

FIG. 2 is a view showing a main part of an embodiment of the present invention, in which a front chain stay 15 is partially omitted, and a cutaway cross section of each component is shown.

FIG. 3 is a top view for explaining the mounting positions of the plate-shaped pedestal 17 and the bridge member 18 in a state where components are omitted in the embodiment of the present invention.

FIG. 4 illustrates a bridge member 18 according to one embodiment of the present invention.
It is the perspective view which looked at the back.

FIG. 5 shows a battery pack 2 of one embodiment of the present invention,
(A) is a perspective view when the battery pack 2 is mounted and is viewed from the chain ring side, (b) is a view when viewed from the opposite side of the chain ring, and (c) is a rear view FIG. 7D is a diagram corresponding to when viewed, and FIG. 8D is a diagram corresponding to when viewed from below.

FIG. 6 is a perspective view showing a battery holder 30 and a side cover 35 of one embodiment of the present invention, (a) being an exploded perspective view,
(B) is a perspective view of a main part of the battery holder 30 as viewed from the bottom.

FIG. 7 is a perspective view showing a state in which a battery holder 30 and a side cover 35 of one embodiment of the present invention are combined.

FIG. 8 is a perspective view showing a cover body 40 according to an embodiment of the present invention.

FIG. 9 shows an embodiment of the present invention, which is AA in FIG.
It is an important section sectional view of a line.

FIG. 10 is a diagram for explaining a connection state of electric wiring in the embodiment of the present invention.

FIG. 11 shows an embodiment of the present invention, which is denoted by B- in FIG.
It is an important section sectional view of a B line.

FIG. 12 shows an embodiment of the present invention, in which the battery pack 2 and the side cover 35 are removed and CC in FIG.
It is a principal part sectional view of a line, and is a figure which partially cut away chain cover 6C.

FIG. 13 is a cross-sectional view of main parts taken along the line CC in FIG. 2 when the battery pack 2 is removed according to the embodiment of the present invention, and is a view in which the chain cover 6C is partially cut away.

[Explanation of symbols]

1 rotary drive 2 battery pack 3 controller 4 electrical wiring 6 chainring 7 Frame side battery terminal 10 bicycle frame 11 seat tube 13 Crankshaft housing frame member 15 Chain stay 18 Bridge member 22 Lower side 23 Battery side electric terminal 24 charging terminals 30 battery holder 31 Outer wall 31U upward extension 35 side cover 40 cover body 42 Bottom part 44 Fixed part 43 Clip 51C, 52C, 53C waterproof connector S space

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Teruki Tanaka             2-5-3 Keihan Hondori, Moriguchi City, Osaka Prefecture             Within Yo Denki Co., Ltd. (72) Inventor Masanori Kamei             2-5-3 Keihan Hondori, Moriguchi City, Osaka Prefecture             Within Yo Denki Co., Ltd.

Claims (3)

[Claims] 1. A pair of chain stays extending rearward from a crankshaft housing frame member for supporting a rear wheel,
A bicycle frame including a bridge member bridged between the chain stays for fixing the rear wheel mudguard, a storage frame member, the chain stays, and a space surrounded by the bridge members. A housing structure for an electric wiring connector of an electric bicycle, comprising: a cover body covering from the side; and a connector for electric wiring of an electric bicycle housed in the space, wherein the cover body is a bottom surface covering the space from below. Portions, a pair of holding pieces extending from both sides of the bottom surface portion and elastically holding the two chain stays, and fixing portions extending from the rear portion of the bottom surface portion and fixed to the bridge member of the frame. A storage structure for an electric bicycle electric wiring connector, characterized by comprising: 2. A bicycle frame, which is installed at a lower portion of a rear side of a seat tube of a bicycle frame, and which is a frame side electric terminal for supplying electricity to a driving part, and detachably attached to a rear side of the seat tube,
A battery pack that is electrically connected to the frame-side electric terminal when mounted; and a battery holder that holds the frame-side electric terminal and locks a lower side surface of the battery pack, wherein the frame-side electric terminal is the battery The battery holder is connected to the electrical wiring connector on the lower side of the back surface of the holder, and the battery holder has an outer peripheral wall for locking the lower side surface of the battery pack except for the opposite side of the chain ring. However, the outer peripheral wall has a downward extending portion that extends downward on the side of the chain ring, the battery holder on the opposite side of the chain ring includes a side cover to be mounted, and the side cover is The electric bicycle electrical wiring connector storage structure according to claim 1, wherein an extension portion extending downward is provided on the opposite side of the chain ring. 3. An extension part extending downward is provided in front of the outer peripheral wall of the battery holder, and an extension part extending downward is provided in front of the side cover. The electric bicycle electric wiring connector storage structure according to claim 2.