CN1071663C - Electrically-powered moped - Google Patents

Abstract

An electric power-assisted bicycle has a motor that assists manpower, and the frame is foldable; wherein, a storage battery device 32 is installed on the rear frame 3, and the storage battery device 32 has a residual quantity display part 64 for displaying the residual quantity of the storage battery 63 on the upper part and a storage battery device The display button 66 for displaying the remaining amount is covered above the battery box by the cover 35, and a see-through plate 76 for seeing through the remaining amount display portion and an operation button 77 for pressing the display button are attached to the cover. This prevents the battery box from being soiled by muddy water and dust brought down during travel, and enables easy operation of the display buttons.

Description

electric assist bicycle

The present invention relates to an electric power-assisted bicycle having an electric motor for assisting human power.

An electric power-assisted bicycle is a bicycle in which auxiliary power corresponding to pedaling force (pedaling force) is supplied from an electric motor. For example, the "electric power-assisted bicycle" in Japanese Patent Laid-Open No. Hei 9-2370 is such a bicycle.

According to FIG. 1 and FIG. 2 of the publication, the frame of the electric power-assisted bicycle is composed of a V-shaped front frame 3 in a side view (numbers cited in the publication, the same below) and a rear frame 4. combination.

The front frame 3 is composed of a main frame 3A, an intermediate portion 3B, and a seat frame 3C. The main frame 3A descends obliquely rearward from the head pipe 5. The intermediate portion 3B is connected to the lower end of the main frame 3A and is bent. The seat frame 3C rises obliquely rearward from the middle portion 3B. The periphery of the front frame 3 is covered with a body cover 16 .

The main frame 3A is equipped with a battery box assembly 30 and a locking device 70 with a main switch, the middle part 3B is equipped with a motor 18 , and the seat frame 3C is equipped with a control device 100 .

In addition, according to FIG. 22 of the publication, when the voltage of the battery power supply BAT is equal to or lower than the residual capacity determination voltage value, the control device 100 turns on the lamp L to prompt charging.

The above-mentioned lamp L can be directly mounted on the control device 100 because the maintenance frequency is small. However, the control device 100 attached to the seat frame 3C is easily soiled by muddy water, dust, etc. that jump up during walking. The control device 100 is covered by the vehicle body cover 16 to prevent it from getting dirty, and when the lamp L is attached to the control device 100, the lamp display is hard to see. For this reason, the arrangement of the lamp L is limited to the periphery of the steering handle 7 . Thus, the degree of freedom in design around the steering handle 7 is limited.

Therefore, it is an object of the present invention to improve the degree of freedom in arrangement of a remaining-amount display unit for displaying the remaining amount of a battery.

In order to achieve the above object, the present invention scheme 1 provides an electric power-assisted bicycle, the electric power-assisted bicycle has a motor that can assist manpower, and the vehicle frame can be folded, and is characterized in that a battery box is installed on the vehicle frame, and the battery box has a The remaining amount display part for displaying the remaining amount of the battery and the display button for displaying the remaining amount of the battery are covered with a cover above the battery box, and the see-through plate for seeing through the remaining amount display part and the display button for pressing the display button are installed on the cover. action button.

Since the top of the battery box is covered with the cover, the battery box will not be soiled by splashed muddy water, dust, etc. during travel. Furthermore, the display content of the remaining amount display part can be seen through the see-through panel of the cover. When the display button is pressed indirectly through the operation button of the cover, the remaining amount display part displays the remaining amount of the storage battery. In this way, the arrangement of the remaining amount display unit is not limited to the periphery of the handle.

The feature of the second solution of the present invention is that the operation button is directly installed on the see-through plate.

The operation buttons are mounted on a see-through plate mounted on the cover.

The embodiment of the present invention is described below in conjunction with accompanying drawing

Fig. 1 is a side view of the electric power assist bicycle of the present invention.

Fig. 2 is a top view of the electric power assist bicycle of the present invention.

Fig. 3 is an exploded perspective view of the vehicle frame of the present invention.

Fig. 4 is a side view of main parts around the rear frame, the seat support frame and the power unit of the present invention.

Fig. 5 is a configuration diagram of a storage battery device according to the present invention.

Fig. 6 is a side sectional view of a state in which a storage battery device is accommodated in the rear frame space of the present invention.

7 is an enlarged cross-sectional view of main parts showing the relationship between the remaining amount display unit, the display button, and the cover of the present invention.

Fig. 8 is an exploded perspective view showing the relationship of the battery device and the battery guide of the present invention.

Fig. 9 is a sectional view taken along line 9-9 of Fig. 6 .

Fig. 10 is a side sectional view of the state in which the main switch and the control device are installed on the supporting frame of the vehicle seat according to the present invention.

Fig. 11 is a sectional view taken along line 11-11 of Fig. 10 .

Fig. 12 is a sectional view taken along line 12-12 of Fig. 10 .

Fig. 13 is an exploded perspective view of the hinge mechanism and connecting mechanism of the present invention.

Fig. 14 is a side view of the connection mechanism of the present invention.

Fig. 15 is a plane sectional view of the hinge mechanism and the connection mechanism of the present invention.

Fig. 16 is an action diagram of the connection mechanism of the present invention.

Fig. 17 is a plane sectional view of the hinge mechanism and connecting mechanism of the present invention.

Fig. 18 is an action diagram of the folding structure of the front and rear vehicle frames of the present invention.

Fig. 19 is an action diagram of the electric power-assisted bicycle of the present invention.

Fig. 20 is an action diagram of the electric power-assisted bicycle of the present invention.

"Front", "Rear", "Left", "Right", "Up", and "Down" follow the directions seen by the driver, F _r is the front side, R _r is the rear side, L is the left side, and R is the Right. In addition, the drawings are viewed in the direction of the symbols.

Fig. 1 is a side view of the electric power assist bicycle of the present invention.

The electric assist bicycle 1 is a foldable bicycle, and a front frame 2 and a rear frame 3 are foldably connected at substantially the center in the front-rear direction to form a frame 4 .

A front fork 6 is rotatably attached to a head pipe 5 at the front end of the front frame 2 , and a front wheel 7 and a handle 8 are attached to the front fork 6 .

In the structure around the rear frame 3, a seat support frame 11 extending rearward and upward is installed at the front end portion of the rear frame 3, and a seat pillar mounting portion 11a at the rear end portion of the seat support frame 11 can be The seat post 13 is mounted vertically forward and backward, and the saddle 14 is attached to the upper end of the seat post 13 . A rear wheel 15 is installed at the rear end of the rear vehicle frame 3, and a power unit 16 is installed at the lower end.

In the figure, the symbol 8a is the handle, the symbol 8b is the brake grip, the symbol 12 is the handle for adjusting the height of the seat post, the symbol 17 is the front brake, the symbol 18 is the rear brake, the symbol 19 is the pedal, and the symbol 21 is the gear crank. Symbol 22 is a crank shaft, symbol 23 is a driving sprocket, symbol 24 is a driven sprocket, symbol 25 is an idler wheel, symbol 26 is a chain, and symbol 27 is a parking bracket.

Fig. 2 is a top view of the electric power assist bicycle of the present invention. For ease of understanding, the seat support frame 11 , seat post 13 , and saddle 14 shown in FIG. 1 are omitted.

The hinge mechanism 90, the drive sprocket 23, the driven sprocket 24 and the chain 26 when the front frame 2 and the rear frame 3 are folded are arranged on the right side (one side) of the body center C of the electric power-assisted bicycle. On one side (the other side) is disposed a connecting mechanism 100 that connects the front frame 2 and the rear frame 3 .

Fig. 3 (a)～(d) is the exploded perspective view of vehicle frame of the present invention, (a) shows the state after disassembling, (b) shows the b-b section of (a), (c) shows (a) The c-c section of (d) shows the d-d section of (a).

As shown in (b), the front frame 2 is a pipe with an oval cross section.

As shown in (a), (c), and (d), the rear frame 3 is generally connected by a ring-shaped frame body 3a and left and right frame side plates 3b, 3b hanging from the rear of the frame body 3a. The bottom plate 3c between the lower ends of the left and right frame side plates 3b, 3b, and the left and right rear wheel support arms 3d, 3d extending rearward from the rear of the frame body 3a and the frame side plates 3b, 3b are formed. As shown in (c), the space S surrounded by the frame body 3a, the left and right frame side plates 3b, 3b, and the bottom plate 3c serves as a storage battery storage space. The rear upper part of the space part S has an open structure as shown in (d). Two front and rear mounting bosses 3e, 3e are integrally formed on the upper part of the frame body 3a, and these mounting bosses 3e, 3e are used to fix the lower end of the frame 11 (see FIG. 1) by fixing the seat with bolts.

In order to reduce weight, the front and rear vehicle frames 2 and 3 are formed of light alloys such as aluminum alloys. For example, the front portion 2A of the front frame 2 is formed of an extruded aluminum alloy, the rear portion 2B of the front frame 2 is formed of an aluminum alloy casting, and the frame body 3a is formed of an aluminum alloy casting.

However, the front end of the rear frame 3 is blocked by a cover 31 . The detailed structure of the cover 31 will be described later.

FIG. 4 is a side view of main parts around the rear frame, the seat support frame, and the power unit of the present invention, showing the power unit 16 in section.

The storage battery device 32 is arranged at the lower part of the rear frame 3, and the power unit 16 is arranged at the lower position of the storage battery device 32. On the other hand, the main switch 33 is arranged at the upper part of the seat support frame 11, and the control device is arranged at the lower position of the main switch 33. 34.

Specifically, a battery 32 is housed in the space S of the rear frame 3 , a main switch 33 is mounted on the seat support frame 11 , and a control device 34 is housed inside the seat support frame 11 .

The rear upper part of the rear frame 3 and the rear of the seat support frame 11 are covered by a cover 35, the details of which will be described later. In addition, the rear surface and the rear end side of the rear frame 3 are covered with a rear cover 36 divided into two on the left and right.

The power unit 16 uses the electric motor 41 as a driving source to assist manpower in walking. In detail, the power unit 16 is composed of a motor 41, a drive gear 42 mounted on the output shaft 41a of the motor 41, a first intermediate gear 43 engaged with the drive gear 42, a first intermediate shaft 44 on which the first central gear 43 is installed, and an integral body. The second intermediate gear 45, which is ground on the first intermediate shaft 44, the third intermediate gear 46 meshed with the second intermediate gear 45, and the second intermediate gear 46 connected to the third intermediate gear 46 through a one-way clutch (not shown in the figure). The intermediate shaft 47, the fourth intermediate gear 48 integrally provided on the second intermediate shaft 47, the driven gear 49 meshing with the fourth intermediate gear 48, the rotary cylinder engaging the driven gear 49 and the above-mentioned drive sprocket 23 (Fig. Not shown in), and the housing 51 constitutes.

The power unit 16 has a vehicle speed detection device 55 . The vehicle speed detection device 55 is composed of a magnetic reluctor 56 mounted on the output shaft 41 a of the motor 41 and an electromagnetic coupling coil sensor 57 .

5 (a) to (d) are structural diagrams of the storage battery device of the present invention, (a) shows a partly cutaway side of the storage battery device 32, (b) shows a plane of the storage battery device 32, and (c) shows The c-c section of (a) is shown, and (d) shows the back side of the storage battery 32 .

The battery box 61 of the battery 32 is constructed by combining the left and right box halves 61L, 61R and fixing them with small screws B1... (...indicates a plurality, the same hereinafter). Two external terminals 65, 65, etc. are mounted on the back.

The battery box 61 is as shown in Fig. 5 (c) and is elongated in the front-rear direction, and is tapered downwards in a front view. The handle 61a is integrally formed on the front, and the connection for external terminals is integrally formed on the back. Device 61b has a display window 61c on it. The display window 61c faces the display surface 64a and the display button 66 of the remaining amount display unit 64 as shown in FIG.

The remaining amount display unit 64 is used to display the remaining amount of the storage battery 63 , specifically, the voltage of the storage battery 63 is displayed by lighting up a plurality of light emitting diodes 64 b . . .

The display button 66 is a button attached to the display surface 64 a of the remaining amount display unit 64 so that the remaining amount of the storage battery 63 is displayed on the remaining amount display unit 64 . By pressing this button, a switch not shown in the figure is turned on, and the remaining amount display unit 64 is operated only for a predetermined time. Since the remaining amount display unit 64 is operated only for a predetermined time, power can be saved.

In the figure, reference numeral 67 is a charging terminal, and reference numeral 61f is an opening for the charging terminal. Reference numeral 62g is a rear lower tapered surface, which is provided on the upper and lower opposite sides of the charging terminal 67 .

6 is a side sectional view of the state in which the storage battery device is accommodated in the rear frame space of the present invention. On the upper part of the inner wall 3f forming the space S of the rear frame 3, the rear part of the cover 35 is fixed with small screws, and the cover 35 is used to The upper part of the battery box 61 is covered.

The inner wall 3f is sandwiched between the battery guide 71 inside the space S and the external connector 72 outside the space S. As shown in FIG. The contact pins 72a, 72a of the external connector 72 are connected to the first electric wires 73 (wire harness), pass through the battery guide 71, and contact the external terminals 65, 65 of the battery device 32 housed in the space S.

As mentioned above, the battery unit 32 has the rear lower tapered surface 61g in the rear lower part. Therefore, when the battery device 32 is inserted into the space S, the lower rear part of the battery device 32 does not touch the opening of the rear frame 3, so the insertion is easy.

7 is an enlarged cross-sectional view showing the relationship between the remaining amount display part, the display button, and the cover of the present invention. It can be seen from the figure that the see-through plate 76 of the remaining amount display part 64 and the transparent plate 76 for pressing the button are installed on the cover 35. The operation button 77 of the display button 66 is lowered.

Specifically, the cover 35 is elastically fitted with a see-through plate 76 facing the display surface 64a of the remaining amount display portion 64, and the see-through plate 76 is made of, for example, a transparent or translucent resin plate or glass plate. The operation button 77 is made of elastic materials such as rubber, and is directly mounted on the see-through plate 76 in an elastic fit, and the upper surface of the display button 66 can be pressed through the sleeve 78 .

Fig. 8 is an exploded perspective view showing the relationship of the battery device and the battery guide of the present invention.

The battery guide 71 is formed by integrating tapered guide protrusions 71a, 71a and shoulder guide protrusions 71b, 71b. The tapered guide protrusions 71a, 71a are used to guide the lower tapered surface 61d, 61d, the shoulder guide protrusions 71b, 71b are used to guide the shoulders 61e, 61e of the battery case 61.

Therefore, the battery guide 71 guides the lower tapered surface 61d and the shoulder 61e of the battery case 61 inserted into the space S (see FIG. Part S is positioned at a specified position. In a state positioned by the battery guide 71 , the external terminal connector 61 b of the battery case 61 is fitted into the through-hole 71 c of the battery guide 71 . Therefore, as shown in FIG. 6, only by inserting the storage battery device 32 into the space S, the external terminals 65, 65 are automatically aligned with the external connector 72, and the contact pins 72a, 72a are brought into contact.

Fig. 9 is a sectional view taken along line 9-9 of Fig. 6 . For ease of understanding, the inner wall 3 f of the rear frame 3 , the cover 35 , and the battery guide 71 shown in FIG. 6 are omitted.

As can be seen from this figure, the storage battery device 32 in the state where the space portion S has been accommodated is positioned by the tapered guide protrusions 71a, 71a.

A gap α is formed between the battery case 61 and the bottom plate 3c. Therefore, the bottom surface of the battery case 61 does not interfere with the bottom plate 3c and does not rub against it.

Fig. 10 is a side sectional view of a state where a main switch and a control device are mounted on the seat support frame of the present invention, showing details of the mounting structure.

The specific installation structure of main switch 33 is to fix switch mounting plate 81 with elastic engagement and small screw B2 on the front top of vehicle seat supporting vehicle frame 11, and main switch 33 is installed on switch mounting plate 81. The main switch 33 is a key switch, and the key 82 shown by the dot-dash line is inserted into the key hole for turning operation, which is used to start or close the action of the control device 34 .

On the other hand, in the specific installation structure of the control device 34, the joint plate 86 is installed on the upper part of the vehicle seat support frame 11, and the hook flange 34a at one end of the control device 34 is hooked on the hole 86a of the joint plate 86, The stay 34b at the other end of the control device 34 is installed on the top of the vehicle seat support frame 11 with the bolt B3. The control device 34 controls the electric motor 41 (see FIG. 4 ) to generate auxiliary power corresponding to the force of the pedal 19 (see FIG. 1 ).

The main switch 33 and the control device 34 are connected by a second wire 87 (wire bundle), and the control device 34 and the storage battery device 32 of FIG. 6 are connected by a first wire 73 .

The storage battery device 32, the main switch 33, and the control device 34 are adjacent to each other, so the first and second electric wires 73 and 87 are extremely short.

Fig. 11 is a sectional view taken along line 11-11 of Fig. 10. In the figure, the lower end of the seat support frame 11 is installed on the mounting post 3e of the rear frame 3 with bolts B4 and B4.

FIG. 12 is a cross-sectional view taken along line 12-12 of FIG. 10 , showing a state in which the hooking flange 34a of the control device 34 is hooked to the hole 86a of the joint plate 86 of the seat support frame 11 .

Fig. 13 is an exploded perspective view of the hinge mechanism and connecting mechanism of the present invention.

The hinge mechanism 90 consists of a hinge stay 2a formed on the right side of the rear end of the front frame 2, a hinge stay 3g formed on the right side of the front end of the rear frame 3, and a hinge stay 31a formed on the cover 31. The hinge pin 91 with a flange in each hole of the hinge stay 2a, 3g, 31a, and the split ring 92 fixed to the lower end part of the hinge pin 91 with a flange are comprised.

The connecting mechanism 100 is composed of a boss portion 3h formed on the left side of the front end of the rear frame 3, a vertical through hole 3i formed in the boss portion 3h, and a notch cut forward from the middle of the vertical through hole 3i. 3j, the side that passes through the upper and lower through holes 3i is viewed as an inverted L-shaped locking handle 101, which is fixed to the split ring 102 at the lower end of the locking handle 101, and is fitted in the belt matching hole of the locking handle 101 in the above-mentioned notch groove 3j. Bolt 103 and torsion spring 104 are screwed into double nut 105 (nut 106 and cap nut 107) with matching hole bolt 103, flange 2b formed on the left side of the rear end of front frame 2, and flange 2b formed on the flange 2b bolt hook groove 2c.

FIG. 14 is a side view of the connection mechanism of the present invention, showing the main parts of the connection mechanism 100 in a connected state in cross-section.

In the locking handle 101, an eccentric cam portion 101b is formed in the middle of a shaft portion 101a inserted into the vertical through hole 3i, and a fitting hole 103a of a bolt 103 with a fitting hole is engaged with the cam portion 101b. The bolts 103 with fitting holes are inserted into the bolt hook grooves 2c, and the double nuts 105 screwed into the front end are hung on the flange 2b, thereby connecting the front frame 2 and the rear frame 3.

The depth that double nut 105 is screwed into band matching hole bolt 103 is for connecting front vehicle frame 2 and rear vehicle frame 3 suitable size, is preset.

Fig. 15 is a plane sectional view of the hinge mechanism and the connection mechanism of the present invention. In the figure, the accumulator device 32 shown by the dotted line is accommodated in the space S of the rear frame 3, the cover 31 is closed, and the key cylinder is locked ( locking device) 111, and then connected to the connecting mechanism 100.

The key cylinder 111 attached to the cover 31 is inserted into the key hole and rotated so that the lock pin 111a is locked to the protrusion 3k in the rear frame 3 . Since the key cylinder 111 is provided, it can prevent the storage battery device 32 from being stolen.

The torsion spring 104 of the link mechanism 100 exerts elastic force in a direction in which the pair of bolts 103 with fitting holes are always hung on the flange 2 b of the front frame 2 . Therefore, the front frame 2 and the rear frame 3 can always maintain a stable connection state.

The rear end of the front vehicle frame 2 is open, and the wire lock 112 can be accommodated inside.

The wire lock 112 is a lock component hung on the front wheel 7 or the rear wheel 15 for anti-theft, and is formed by combining a ring wire 112a and a dial lock 112b. When the steel wire 112a is inserted in the front frame 2, the steel wire 112a is pressed against the inner surface of the front frame 2 by its own restoring force, so it will not fall out. In this way, the internal space of the front frame 2 can be effectively utilized.

Fig. 16(a), (b) is the operation diagram of the connection mechanism of the present invention, (a) shows the state before connection, and (b) shows the state after connection.

In (a), the rear end of the front frame 2 is aligned with the front end of the rear frame 3, and the bolt 103 with a fitting hole is inserted into the bolt hook groove 2c. At this time, the locking handle 101 is in an upright state as indicated by a dotted line. Therefore, the cam portion 101b is in a state of being eccentric by a dimension δ1 from the center X of the shaft portion 101a to the front frame 2 side. On the other hand, the gap between the back surface of the flange 2b and the double nut 105 is δ2.

From this state, when the lock handle 101 is turned back in the direction of the white arrow A, the cam portion 101b also turns in the same direction. The bolt 103 with a fitting hole is tensed by the rotating cam part 101b, and moves in the direction of the blank arrow B.

As shown in (b), when the locking lever 101 is changed to the F position shown by the dotted line, the cam portion 101b becomes an eccentricity dimension δ3 from the center X of the shaft portion 101a to the side opposite to the front frame 2. state. Since the bolt 103 with a fitting hole is tensioned by the cam portion 101b, there is no gap between the back surface of the flange 2b and the double nut 105. In this way, the bolt 103 with matching holes pulls the flange 2 b to the front end of the rear frame 3 through the double nuts 105 , and connects the rear end of the front frame 2 to the front end of the rear frame 3 .

Fig. 17 is a planar cross-sectional view of the hinge mechanism and the connecting mechanism of the present invention, showing a state in which the front frame 2 is fallen down except for the connecting mechanism. In this state, the key cylinder 111 is opened with the key 113, the cover 31 can be opened, and the storage battery device 32 shown by the dotted line can be replaced.

Fig. 18 is an action diagram of the folding structure of the front and rear vehicle frames of the present invention.

When accommodating the storage battery 32 and connecting the front frame 2 and the rear frame 3, the following work order is carried out.

First, insert the battery device 32 into the space S of the rear frame 3 (arrow ①), close the cover 31, lock the key cylinder 111 (arrow ②), and store the wire lock 112 inside the front frame 2 as required (arrow ③) , align the rear end of the front frame 2 with the front end of the rear frame 3 (arrow ④), insert the bolt 103 with matching holes into the bolt hook groove 2c of the flange 2b (arrow ⑤), drop the locking handle 101, Hang the bolt 103 with matching holes on the flange 2b (arrow ⑥) to connect the rear end of the front frame 2 and the front end of the rear frame 3.

When taking out the battery unit, carry out the reverse order of the above operation sequence.

Fig. 19 is an action diagram of the electric power assist bicycle of the present invention, showing the structure of the electric power assist bicycle 1 in a folded state viewed from the side.

By releasing the connection mechanism 100, the front frame 2 is folded to the right side (inward direction in the figure), and the electric power-assisted bicycle 1 becomes roughly half in length. The electric power-assisted bicycle 1 in this state can stand by the rear wheel 15 and the parking bracket 27 . It is also possible to lower the saddle 14 as shown.

Fig. 20 is an action diagram of the electric power assist bicycle of the present invention, showing the plan view structure of the electric power assist bicycle 1 in a folded state. For ease of understanding, the seat support frame 11 , seat post 13 and saddle 14 shown in FIG. 19 are omitted.

Since the driving sprocket 23, the driven sprocket 24, the chain 26 and the hinge mechanism 90 are concentratedly arranged on the right side (one side) of the vehicle body center, the person who folds the electric power-assisted bicycle stands on the left side (the other side) of the vehicle body During the folding work, the chain 26 and the like do not form an obstacle, so workability is good. In addition, since the chain 26 can be guided by the folded front frame 2, front fork 5, and front wheel 7, components for a chain guide in this state are unnecessary.

The present invention can exhibit the following effects with the above constitution.

The present invention's scheme 1 owing to cover the battery box top that is installed on the vehicle frame with cover, so battery box can not be made dirty by the muddy water or dust etc. that are brought down in walking.

Since the see-through plate that sees through the remaining amount display portion is installed on the cover, the display content of the remaining amount display portion can be viewed through the see-through plate. Therefore, even if the upper part of the battery box having the remaining amount display part is covered with a cover, the displayed contents can be easily seen.

Since the operation button for pressing the display button is mounted on the cover, the remaining amount of the storage battery can be displayed on the remaining amount display part by indirectly pressing the display button through the operation button. Therefore, even if the upper side of the battery box having the display button is covered with the cover, the display button can be easily operated.

In this way, the arrangement of the remaining amount indicator is not limited to the periphery of the steering handle, and the degree of freedom in the arrangement of the remaining amount display portion can be increased while increasing the degree of freedom in the design of the periphery of the steering handle. Furthermore, the wiring of the remaining amount display unit can also be shortened.

Solution 2 of the present invention directly installs the operation button on the see-through plate, so after the operation button is installed on the see-through plate, it only needs to install the see-through plate on the cover. Since the operation button is partially assembled to the see-through plate, assembly workability can be improved and assembly man-hours can be reduced.

Claims (2)

1. electric assisted bicycle has the electrical motor of auxiliary manpower, and vehicle frame can fold; It is characterized in that: on above-mentioned vehicle frame, storage battery box is installed, this storage battery box has the residual volume display part that shows the storage battery residual volume and is used to make the Show Button of storage battery residual volume demonstration on top, by the top of cover covering storage battery box, the action button that is used to have an X-rayed the perspective board of residual volume display part and is used to press the Show Button is installed on this cover.

2. electric assisted bicycle as claimed in claim 1 is characterized in that: aforesaid operations button direct mount is on above-mentioned perspective board.

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