CN204857804U

CN204857804U - Electric bicycle and portable battery jar thereof

Info

Publication number: CN204857804U
Application number: CN201520486351.8U
Authority: CN
Inventors: 蔡毅
Original assignee: Upper Asterias Amurensis Lutken Extensive Region Investment Co Ltd
Current assignee: Upper Asterias Amurensis Lutken Extensive Region Investment Co Ltd
Priority date: 2015-07-07
Filing date: 2015-07-07
Publication date: 2015-12-09
Anticipated expiration: 2025-07-07

Abstract

The utility model provides an electric bicycle and portable battery jar thereof, wherein portable battery jar is used for providing the power to electric bicycle, includes: the casing has accommodating space, locate battery assembly in the accommodating space, the cable, accept in in the accommodating space, the one end of cable with battery assembly electricity is connected, the other end reveal in accommodating space is outward as connecting, connect and be used for inserting external equipment. This technical scheme's portable battery jar portability is good, conveniently charge, this technical scheme's battery jar need not to correspond the special battery storehouse of design on electric bicycle, consequently when design electric bicycle, this technical scheme's battery jar does not have any influence to electric bicycle's appearance design.

Description

Electric bicycle and portable storage battery jar thereof

Technical Field

The utility model relates to an electric bicycle technical field, in particular to electric bicycle and portable battery jar thereof.

Background

An electric bicycle, which is based on a general bicycle and uses a battery as an auxiliary energy source, includes: automobile body, motor and accumulator tank, the equal fixed mounting of motor and accumulator tank is on the automobile body, and the accumulator tank is used for providing the power with the work of drive electric bicycle to the motor, and can insert external power source when the electric quantity exhausts and charge. Wherein, a cable is led out from the storage battery tank, the cable is fixedly arranged on the vehicle body, one end of the cable is electrically connected with the storage battery tank, and the other end of the cable is connected into the motor or an external power supply through a connector. At this time, the cable and the storage battery tank are integrated with the electric bicycle, and belong to a part of the electric bicycle.

The existing storage battery tank has the following problems:

1. the cable of the existing storage battery tank extends out of the storage battery tank and is arranged according to a preset route, so that the storage battery tank is inconvenient to disassemble and carry, poor in portability and causes certain troubles for charging;

2. because the storage battery jar is directly fixed on electric bicycle, can't dismantle easily, when designing electric bicycle, must design special battery storehouse and install the storage battery jar, this forms certain restriction to electric bicycle's appearance design.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model provides a problem be:

1. the cable of current battery jar is located outside battery jar self to arrange according to predetermineeing the route, cause the inconvenient dismantlement of battery jar, more portable, portability is poor, causes certain puzzlement for charging

2. Because the storage battery jar is fixed on electric bicycle, when designing electric bicycle, must design special battery storehouse and install the storage battery jar, this forms certain restriction to electric bicycle's appearance design.

In order to solve the above problem, the utility model provides a portable storage battery jar for provide the power to electric bicycle, include:

a housing having an accommodating space;

the storage battery assembly is arranged in the accommodating space;

the cable is accommodated in the accommodating space, one end of the cable is electrically connected with the storage battery assembly, the other end of the cable is exposed out of the accommodating space to serve as a connector, and the connector is used for being connected into external equipment.

Optionally, the battery assembly includes a plurality of batteries, and all the batteries constitute a battery pack; or,

all storage batteries are divided into a plurality of storage battery packs, all the storage battery packs are sequentially stacked along the height direction of the shell, and the height direction refers to the direction in which the top of the shell points to the bottom.

Optionally, all the batteries in each of the battery packs are connected in series; when the storage battery is divided into a plurality of storage battery packs, all the storage battery packs are connected in parallel.

Optionally, all the battery packs and cables are arranged in the height direction of the casing.

Optionally, the method further comprises: the wire collecting piece is arranged in the accommodating space;

the hub is used for: the cable is bundled in the accommodating space.

Optionally, the hub includes:

the rotating shaft is positioned in the accommodating space and can rotate relative to the shell, and the cable is wound on the rotating shaft to be bundled in the accommodating space.

Optionally, the hub further comprises:

and the inner end of the coil spring is connected to the rotating shaft, and the outer end of the coil spring is fixed on the shell.

Optionally, the cable is a retractable cable.

Optionally, the retractable cable is a helical spring cable.

Optionally, the housing comprises:

the body part is provided with an opening communicated with the accommodating space in the height direction of the shell;

the cover part is arranged on the opening and is detachably connected with the body part.

Optionally, the receiving space includes: a first space provided in the body portion and a second space provided in the lid portion;

the storage battery assembly is accommodated in the first space;

the cable is contained in the second space and extends into the first space to be electrically connected with the storage battery assembly.

Optionally, the battery is a lithium battery.

The utility model also provides an electric bicycle, include: a vehicle body;

the portable battery can of any of the above;

the portable battery can is detachably mounted on the vehicle body.

Compared with the prior art, the technical scheme of the utility model with the cable integration in portable battery jar, have following advantage:

1. the cable is accommodated in the accommodating space, so that the storage battery tank of the technical scheme has a compact structure, the cable cannot be scattered, the interference on the placement position of the storage battery tank cannot be caused, the storage battery tank does not need to be fixed on the body of an electric vehicle, and the storage battery tank is convenient to carry, good in portability and convenient to charge;

2. by using the storage battery tank of the technical scheme, a storage battery bin used by a traditional storage battery pack does not need to be designed on the body of the electric bicycle, so that the portable storage battery tank is a relatively independent product compared with the body of the electric bicycle, and a consumer can install the storage battery tank at a proper position of the body of the electric bicycle, such as a proper position of a lever, a saddle or a basket of the electric bicycle, according to the needs, the liking and the length of a cable of the consumer, and the portable storage battery tank is convenient to install and disassemble;

3. because need not to design special battery storehouse on electric bicycle, consequently when designing electric bicycle, the battery jar can not have any influence to electric bicycle's appearance design.

Drawings

FIG. 1 is a perspective view of a portable battery can according to an embodiment of the present invention, the perspective view being a transparent view;

FIG. 2 is a cross-sectional view of a cover portion of a housing in a height direction of the housing in the portable battery can of FIG. 1;

FIG. 3 is a view of the cover portion and the body portion of the portable battery can of FIG. 1 when separated;

FIG. 4 is a cross-sectional view of the hub in the cover of FIG. 2 taken in the direction BB, with the cross-section perpendicular to the scroll axis of the coil springs in the hub and passing through the coil springs;

fig. 5 is a cross-sectional view of the coil spring of the hub of fig. 2 as it is tightened.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.

Referring to fig. 1 and 2, the portable battery case of the present embodiment includes:

a housing 1 having a housing space 10;

the storage battery assembly 2 is arranged in the accommodating space 10, the storage battery assembly 2 comprises two storage battery packs 21 and 22 consisting of a plurality of storage batteries, the two storage battery packs 21 and 22 are arranged along the height direction of the shell 1, and the height direction of the shell 1 refers to the direction from the top to the bottom of the shell and is parallel to the direction from the positive pole to the negative pole of each storage battery;

the cable 3 is arranged at the top of the shell 1, extends into the accommodating space 10, is fixedly and electrically connected with the storage battery assembly 2, and is provided with a connector 30 exposed out of the accommodating space 10, and the connector 30 is used for being connected with external equipment, such as a motor of an electric bicycle to supply power or an external power supply to charge the storage battery;

the hub 4, which is arranged on the top of the housing 1, is adapted to: the cable 3 is received in the receiving space 10, and when the cable 3 is pulled by the joint 30, the cable 3 is released, and the cable 3 is pulled out from the receiving space 10 to access the external device; and,

when the connector is released from the external device, the cable 3 is collected in the housing space 10.

Compared with the prior art, this technical scheme is integrated in portable battery jar with cable 3. Taking an electric bicycle as an example, the portable battery jar does not need to be fixedly installed on the body of the electric bicycle, but only needs to be placed on the electric bicycle when in use, and the cable 3 is pulled out to connect the connector 30 to an external device. This has the following advantages:

1. the cable 3 is accommodated in the accommodating space, so that the storage battery tank of the technical scheme has a compact structure, the cable cannot be scattered, the interference on the placement position of the storage battery tank cannot be caused, the storage battery tank does not need to be fixed on the body of an electric vehicle, and the storage battery tank is convenient to carry, good in portability and convenient to charge;

2. the cable 3 is arranged above the storage battery assembly 2 in the height direction of the shell 1, so that the cross section area of the shell 1 cannot be increased, and the storage battery can is more convenient to carry and mount;

3. by using the storage battery tank of the technical scheme, a storage battery bin used by a traditional storage battery pack is not required to be designed on the electric bicycle, so that the portable storage battery tank is a relatively independent product compared with the electric bicycle body, and a consumer can install the storage battery tank at a proper position of the electric bicycle body, such as a proper position of a lever, a saddle or a basket of the electric bicycle, according to the needs, the preference and the length of the cable 3, and the portable storage battery tank is convenient to install and disassemble;

4. because a special storage battery bin is not required to be designed on the electric bicycle, the storage battery tank does not have any influence on the appearance design of the electric bicycle when the electric bicycle is designed;

5. the portable storage battery tank of the technical scheme is completely independent of electric bicycle products, wherein the storage batteries in the storage battery packs 21 and 22 can be selected from lithium batteries or other dry battery types, the capacity is moderate, the weight is light, the portable storage battery tank is convenient to carry and charge, and the portable storage battery tank is particularly suitable for the requirement of short-distance riding.

Further, referring to fig. 1, in the present solution, in two battery packs 21 and 22, each battery pack includes a plurality of batteries connected in series, and all the batteries are tightly arranged in a plane perpendicular to the height direction of the casing 1; the two battery packs 21, 22 are arranged in a stacked manner in the height direction of the casing 1. Compared with the prior storage battery pack in which all storage batteries are arranged in the horizontal direction, the storage battery pack has the advantages that the two storage battery packs 21 and 22 are arranged in an overlapping mode, the size of the storage battery tank in the direction perpendicular to the height direction is reduced, the cross section area of the storage battery tank is reduced, and the storage battery pack is more convenient to carry and install. Wherein, all the batteries of each storage battery pack and two storage battery packs can be electrically connected by wires or conductive metal sheets

In other embodiments, a battery container may be provided in the receiving space 10 to receive the batteries, and a metal plate may be disposed in the battery container to electrically connect all the batteries.

Furthermore, all storage batteries in each storage battery pack are connected in series to provide higher voltage, and the number of the storage batteries can be selected according to the requirement; secondly, the two storage battery packs 21 and 22 are connected in parallel, so that a larger current can be output to increase the output power, and importantly, the electric energy consumed by the internal resistance of the storage battery can be reduced, so that more storage battery packs can be selected according to the needs, and the storage battery packs are not limited to two groups. The technical scheme that only one group of storage battery pack is arranged is not excluded.

As a modification, it is also possible to: the battery assembly includes only 1 battery.

With continued reference to fig. 1 and 2, the housing 1 includes:

a main body 11 having a substantially cylindrical shape, the accommodating space 10 having an opening (not numbered) at a top end of the main body 11 in a height direction; a lid portion 12 covering the opening, the lid portion 12 being detachably connected to the main body portion 11 as a top portion of the housing 1.

The housing space 10 includes: a first space 110 in the main body 10 and a second space 120 in the cover 12; the storage battery assembly 2 is accommodated in the first space 110; the cable 3 is accommodated in the second space 120 and extends into the first space 110 to be electrically connected with the storage battery assembly 2; the hub 4 is provided in the cover 12.

The conventional battery case is a closed battery case in which the battery pack is hermetically received, and the battery case is easily unopenable. Compared with the traditional closed storage battery pack, the technical scheme has the following advantages:

the lid 12 and the body 11 are detachably connected, and when a battery in the battery assembly 2 fails, the lid 12 of the battery case is automatically opened to take out the failed battery and replace the failed battery. Close on life at the battery, during the charging efficiency decay, the user also can change ageing single section battery, prolongs the life of product, and the cost is extremely low, and ordinary electric bicycle need change whole storage battery when battery life closes on, and is with high costs.

The detachable connection mode of the cover part 12 and the body part 11 can be a thread connection mode or a bolt connection mode, and the detachable connection mode is convenient to install and detach. Referring to fig. 3 in combination, the threaded connection may be: the lid 12 is provided with a hollow cylindrical female screw portion 121, the inner surface of which is provided with an internal thread, toward the body portion 11; accordingly, the housing is provided with an external thread part 111 at an opening position of the first space 110, and an outer surface of the external thread part is provided with an external thread; the internal and external threads may be screwed to fasten the lid 12 to the body 11.

As a modification, the screw connection may be: the cover portion is provided with an external thread portion facing the body portion, the housing is provided with an internal thread portion at an opening position of the first space, and the internal thread portion and the housing form a thread fit.

The bolt connection mode can be as follows: the cover part is provided with an extension part which extends towards the second space in a plane vertical to the height direction of the shell, the shell is provided with a protruding part which extends towards the first space in a plane vertical to the height direction of the shell, and the protruding part and the extension part are oppositely arranged along the height direction of the shell; the extension part is provided with a mounting hole, the extension part is correspondingly provided with a connecting hole, the mounting hole is communicated with the connecting hole, and then the extending part is fastened with the extension part by a bolt penetrating through the connecting hole and the mounting hole, so that the cover part is connected with the body part in a detachable connection mode.

Other possible attachment means than the above listed detachable attachment means may be chosen.

Referring to fig. 1, 2 and 4, in the present embodiment, the wire concentrator 4 is designed to orderly accommodate the cables 3 in the second space 120, and automatically recover the cables 3 in the second space 120 after being pulled out.

Wherein the second space 120 has a top wall 124 and a bottom wall 125, the bottom wall 125 separating the first space 110 from the second space 120, the coil spring 4 resting more stably above the bottom wall 125. The two ends of the rotating shaft 40 are rotatably disposed in the top wall 124 and the bottom wall 125, respectively. The hub 4 includes:

a rotating shaft 40 disposed in the second space 120, both ends of which are rotatably mounted in the top wall 124 and the bottom wall 125 of the cover 12, the rotating shaft 40 being capable of rotating relative to the cover 12, the cable 3 being wound around the rotating shaft 40 and one end of which extends into the first space 110 for connecting the battery assembly 2, the cover 12 having a side opening 122, the other end of the cable 3 having the connector 30 being located in the opening 122, and pulling the connector 30 to pull out the cable 3 for connecting to an external device;

a coil spring 41 arranged in the second space 120, wherein the inner end of the coil spring 41 is connected to the rotating shaft 40, and the outer end of the coil spring is fixed on the side wall 123 of the second space 120;

the coil spring 41 functions as: with reference to fig. 5, when the cable 3 is pulled out from the second space 120 and drives the rotating shaft 40 to rotate clockwise along the direction a, the cable is gradually tightened by the torque of the rotating shaft 40; after the connector 30 is released, the coil spring is used to drive the rotating shaft 40 to rotate along the direction a' to wind the cable 3, so that the cable 3 is wound on the rotating shaft 40 and accommodated in the second space 120.

This technical scheme realizes that cable 3 retrieves automatically. As a modification, it is also possible to: no coil spring is arranged, the rotating shaft is designed to extend out of the cover part, and the rotating shaft can be rotated by hands to recycle the cables.

As a modification, the bottom wall may not be provided, and in this case, the first space and the second space communicate with each other, and the outer end of the coil spring is fixed to the lid portion.

Further, referring to fig. 1 and 2, the cable 3 may be fixedly connected to the rotating shaft 40 at a position (e.g., a position C in fig. 2), which is preferably, but not limited to, close to the battery.

Because the cable 3 is fixedly connected with the rotating shaft 40 at a certain position, on one hand, the rotating shaft 40 can more effectively drive the cable 3 to wind thereon when rotating. On the other hand, when the cable 3 is pulled out, the pull-out length of the cable 3 is limited by the rotating shaft 40 at the fixed connection position C, and the rotating shaft 40 forms a block, so that the situation that one end of the cable 3, which is connected with the storage battery assembly 2, is disconnected from the storage battery assembly 2 at the connection position due to large traction is avoided. Moreover, the cables 3 can be orderly distributed at the preset position in the second space 120 or in the process of being recovered and wound, so that the situation that the cables are scattered and disordered and are clamped is avoided.

In addition, referring to fig. 2, the opening 122 is spaced from the fixed connection position C along the length direction of the rotation shaft 40, which can ensure that the cable 3 is kept spirally wound on the rotation shaft 40, which can save the size of the second space 120 in the direction perpendicular to the length direction of the rotation shaft 40, and reduce the surface area of the battery can occupied in the plane perpendicular to the height direction of the case. As a modification, it is also possible to: the opening 122 is designed to be kept at the same height as the fixed connection position C in the length direction of the rotation shaft 40 while the cable 3 is wound spirally around the rotation shaft 40, which increases the size of the second space 120 in the direction perpendicular to the length direction of the rotation shaft 40 but saves the length of the rotation shaft 40.

As shown in fig. 1 and 2, the wire-collecting member 4 is provided in the lid 12, and effectively utilizes the space of the battery can itself without increasing the volume of the battery can itself. As another embodiment, it may also be: the wire-collecting member 4 is disposed in the bottom of the main body 11, or a receiving part is specially designed on the outer side wall of the main body 11 to install the wire-collecting member 4. Therefore, the position of the hub 4 can be properly designed.

As shown in fig. 2, the length direction of the rotation shaft 40 is parallel to the height direction of the body part 11 having a cylindrical shape, which is just one example. As a modification, the rotating shaft may be disposed to be inclined with respect to the height direction of the main body, while satisfying the requirement of the cable to be wound in a recyclable manner. In addition, the joint 30 is provided on the sidewall of the second space 120 as shown in fig. 2. As a variant, the joint may also be provided in the top wall of the second space.

In the present embodiment, the cable 3 is accommodated in the accommodating space 10 by providing the wire concentrating member 4. As a modification, the concentrator is not designed, and the cable 3 is a retractable cable;

the retractable cable is adapted to:

when not in use, the container is accommodated in the accommodating space in a shortened state;

when charging or power supply is needed, the battery extends out of the accommodating space in an extension state to be connected with external equipment; and,

after the device is disconnected with external equipment, the device can be automatically shortened and reset, and is accommodated in the accommodating space again. The retractable cable is selected from a spiral type spring cable, which can be elongated and released to be reset after being elongated.

Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the scope or spirit of the present invention, and the scope of the present invention is defined by the appended claims.

Claims

1. A portable battery canister for providing power to an electric bicycle, comprising:

a housing having an accommodating space;

the storage battery assembly is arranged in the accommodating space;

2. The portable battery canister of claim 1, wherein the battery assembly comprises a plurality of batteries, all of which comprise a battery pack; or,

3. The portable battery canister of claim 2, wherein all of the batteries in each of the battery packs are connected in series; when the storage battery is divided into a plurality of storage battery packs, all the storage battery packs are connected in parallel.

4. The portable battery can of claim 2, wherein all battery packs and cables are arranged in the height direction of the case.

5. The portable battery can of claim 4, further comprising: the wire collecting piece is arranged in the accommodating space;

the hub is used for: the cable is bundled in the accommodating space.

6. The portable battery can of claim 5, wherein the hub comprises:

7. The portable battery can of claim 6, wherein the hub further comprises:

8. The portable battery can of claim 1, wherein the cable is a retractable cable.

9. The portable battery can of claim 8, wherein the retractable cable is a coiled spring cable.

10. The portable battery can of any of claims 1-9, wherein the housing comprises:

11. The portable battery can of claim 10, wherein the receiving space comprises: a first space provided in the body portion and a second space provided in the lid portion;

the storage battery assembly is accommodated in the first space;

12. The portable battery can of claim 1, wherein the battery is a lithium battery.

13. An electric bicycle, characterized by comprising: a vehicle body;

a portable battery can according to any one of claims 1 to 12;

the portable battery can is detachably mounted on the vehicle body.