CN212386633U - Battery pack and electric bicycle - Google Patents

Abstract

The embodiment of the disclosure belongs to the technical field of electric bicycles, and particularly relates to a battery assembly and an electric bicycle. The embodiment of the disclosure aims to solve the problem that water drops entering the accommodating cavity easily contact with the plug connector in the related art, and then influence the connection between the first connecting line and the second connecting line. According to the battery pack and the electric bicycle, the housing of the battery pack is provided with the accommodating cavity, the electronic equipment and the battery pack are arranged in the accommodating cavity, the battery pack is provided with the first connecting wire, the electronic equipment is provided with the second connecting wire, and the first connecting wire and the second connecting wire are connected through the plug connector; the side wall of the waterproof part is enclosed into a waterproof cavity, and the plug connector is placed in the waterproof cavity; the water drops entering the accommodating cavity flow downwards under the action of gravity, and the water drops cannot enter the waterproof cavity; the water entering the shell can not contact with the plug connector, so that the first connecting line and the second connecting line are in good contact, and the normal work of the electronic equipment is guaranteed.

Description

Battery pack and electric bicycle

Technical Field

The embodiment of the disclosure relates to an electric bicycle technology, in particular to a battery pack and an electric bicycle.

Background

With the development of battery technology, electric bicycles have been widely used due to their high convenience and comfort.

In the related art, the electric bicycle is generally powered by a battery assembly disposed thereon, the battery assembly including a housing, a battery PACK (PACK) disposed in the housing, and a positioning device; the positioning device comprises a shell, a positioning device and a battery pack, wherein the shell comprises a first shell and a second shell which are detachably connected, the first shell and the second shell are enclosed into an accommodating cavity, and the positioning device and the battery pack are arranged in the accommodating cavity; in order to facilitate the connection between the positioning equipment and the battery pack, a first connecting line is arranged on the battery pack, a second connecting line is arranged on the positioning equipment, the first connecting line and the second connecting line are detachably connected through a connector clip, so that the battery pack can supply power to the positioning equipment, and the positioning equipment can acquire the position of the battery pack.

However, the water outside the housing enters the accommodating cavity between the first housing and the second housing, and the water drops entering the accommodating cavity are easily contacted with the plug connector, so that the connection between the first connecting line and the second connecting line is influenced, and the positioning device cannot work normally.

SUMMERY OF THE UTILITY MODEL

The embodiment of the disclosure provides a battery pack and an electric bicycle, which are used for solving the problem that water drops entering a containing cavity are easily contacted with a plug connector, so that the connection between a first connecting line and a second connecting line is influenced, and the positioning equipment cannot work normally.

In one aspect, embodiments of the present disclosure provide a battery assembly, including: the shell is used for being arranged on the electric bicycle and is enclosed into an accommodating cavity; the battery pack, the electronic equipment and the waterproof part are arranged in the accommodating cavity, a first connecting wire is arranged on the battery pack, a second connecting wire is arranged on the electronic equipment, and the first connecting wire and the second connecting wire are detachably connected through a plug connector; the waterproof part comprises a side wall, a waterproof cavity is enclosed by the side wall, the bottom end of the waterproof cavity is opened, the top end of the waterproof cavity is closed, and the plug connector is placed in the waterproof cavity.

Through the arrangement, water drops entering the accommodating cavity flow downwards under the action of gravity, and the water drops cannot enter the waterproof cavity because the bottom end of the waterproof cavity is open and the top end of the waterproof cavity is closed; the water entering the shell can not contact with the plug connector, so that the first connecting line and the second connecting line are in good contact, and the normal work of the electronic equipment is guaranteed.

In some embodiments, which may include the above embodiments, the bottom end of the waterproof chamber is provided with a sealing portion that closes the opening. With the arrangement, the sealing part can prevent the water vapor in the accommodating cavity from entering the waterproof cavity from the bottom end of the waterproof cavity, so that water drops formed by liquefaction of the water vapor in the waterproof cavity are prevented from contacting the plug connector, and good contact between the first connecting wire and the second connecting wire is further ensured; in addition, because the vehicle body vibrates in the running process of the electric bicycle, the shell vibrates therewith, and the sealing part can also prevent water drops from entering from the bottom end of the waterproof cavity due to vibration

In some embodiments, which may include the above-described embodiments, the sealing portion includes a piece of sealant located within the opening and surrounding the first and second connection lines. So set up, the contact of sealed gluey piece can be abundant with waterproof chamber, first connecting wire and second connecting wire improves the leakproofness.

In some embodiments, which may include the above embodiments, the flashing is removably connected to the housing.

Due to the arrangement, the waterproof piece and the shell are convenient to detach and mount; in addition, at the in-process of battery pack assembly, can be earlier with being connected through the plug connector between first connecting wire and the second connecting wire, later put into waterproof intracavity with the plug connector, later install waterproof on the casing again for the plug connector can be comparatively easy place at waterproof intracavity, has simplified battery pack's the assembly degree of difficulty.

In some embodiments which may include the above embodiments, the waterproof member is provided with a connecting portion, the connecting portion is provided with a mounting hole, the housing is provided with a mounting threaded hole, and the connecting bolt passes through the mounting hole and then is matched with the mounting threaded hole. Simple structure and convenient installation.

In some embodiments, which may include the above embodiments, the connection is provided at a top end of the flashing.

In some embodiments, which may include the above-described embodiments, the case includes a top wall, a bottom wall, and a peripheral side wall between the top wall and the bottom wall, and the waterproof member is provided between the peripheral side wall and the battery pack.

With the arrangement, after entering the shell, outside water flows downwards along the gap between the peripheral side wall and the battery pack, and at the moment, water drops flow downwards under the action of gravity and cannot enter the waterproof cavity; the water entering the shell can not contact with the plug connector, so that the first connecting line and the second connecting line are in good contact, and the normal work of the electronic equipment is guaranteed.

In some embodiments, which may include the above embodiments, a mounting groove is provided in the receiving cavity between the battery pack and the top wall of the housing, and the electronic device is disposed in the mounting groove. So set up, simple structure and the dismouting of the electronic equipment of being convenient for.

In some embodiments, which may include the above-described embodiments, the electronic device is a positioning device for detecting a position of the battery assembly. The locating device may detect the position of the battery assembly to prevent the battery assembly from being lost.

In some embodiments, which may include the above embodiments, the housing includes a first housing and a second housing detachably connected, a first surface of the first housing is recessed inward to form a first accommodation chamber, a second surface of the second housing is recessed inward to form a second accommodation chamber, and the first accommodation chamber and the second accommodation chamber constitute an accommodation chamber. With the arrangement, the battery pack can be conveniently placed in the shell.

In another aspect, an embodiment of the present disclosure further provides an electric bicycle, including: the vehicle body and the battery pack are detachably connected with the vehicle body.

According to the electric bicycle provided by the embodiment of the disclosure, the shell of the battery pack is provided with the accommodating cavity, the electronic equipment and the battery pack are both arranged in the accommodating cavity, the battery pack is provided with the first connecting wire, the electronic equipment is provided with the second connecting wire, and the first connecting wire and the second connecting wire are connected through the plug connector; the waterproof piece is arranged in the accommodating cavity and comprises a side wall, the side wall encloses a waterproof cavity, the bottom end of the waterproof cavity is open, the top end of the waterproof cavity is closed, and the plug connector is placed in the waterproof cavity from the bottom end of the waterproof cavity; the water drops entering the accommodating cavity flow downwards under the action of gravity, and the water drops cannot enter the waterproof cavity because the top end of the bottom opening of the waterproof cavity is closed; the water entering the shell can not contact with the plug connector, so that the first connecting line and the second connecting line are in good contact, and the normal work of the electronic equipment is guaranteed.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.

Fig. 1 is a schematic structural diagram of an electric bicycle provided in an embodiment of the present disclosure;

fig. 2 is a schematic structural diagram of a battery assembly provided in an embodiment of the present disclosure;

fig. 3 is an exploded view of a battery assembly according to an embodiment of the present disclosure;

fig. 4 is an exploded view of a battery assembly provided by an embodiment of the present disclosure;

FIG. 5 is an enlarged view of a portion of FIG. 4 at A;

fig. 6 is a schematic structural diagram of a waterproof member in a battery assembly according to an embodiment of the present disclosure;

fig. 7 is an exploded view three of a battery assembly provided by an embodiment of the present disclosure;

fig. 8 is an exploded view of a battery assembly according to an embodiment of the present disclosure;

fig. 9 is a schematic view of a battery pack sealing part provided in an embodiment of the present disclosure when the waterproof cavity is not sealed.

Description of reference numerals:

10: a vehicle body;

20: a battery assembly;

101: a wheel;

201: a housing;

202: an accommodating chamber;

203: an electronic device;

204: a battery pack;

205: a waterproof member;

206: mounting grooves;

207: a baffle plate;

2011: a first housing;

2012: a second housing;

2013: installing a threaded hole;

2031: a second connecting line;

2041: a first connecting line;

2051: a waterproof cavity;

2052: a connecting portion;

2053: mounting holes;

2054: a process tank;

2055: and a sealing part.

With the foregoing drawings in mind, certain embodiments of the disclosure have been shown and described in more detail below. These drawings and written description are not intended to limit the scope of the disclosed concepts in any way, but rather to illustrate the concepts of the disclosure to those skilled in the art by reference to specific embodiments.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be described clearly and completely with reference to the drawings in the embodiments of the present disclosure, and it is obvious that the described embodiments are some, but not all embodiments of the present disclosure. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.

The electric bicycle comprises a bicycle body, wherein wheels and a motor in transmission connection with the wheels are arranged on the bicycle body, and the number of the wheels arranged on the bicycle body can be two, three, four and the like; taking two wheels as an example, the two wheels are arranged at intervals along the running direction of the electric bicycle, and correspondingly, the motor can be in transmission connection with any one of the two wheels to provide power for the running of the electric bicycle. The electric bicycle can be further provided with a pedal driving device for a user to pedal, and the pedal driving device is also in transmission connection with the wheels, namely the power of the electric bicycle can be provided by the motor and/or the pedal driving device.

In order to supply power to the motor, a battery assembly needs to be arranged on the vehicle body, and the battery assembly is electrically connected with the motor; the battery assembly comprises a shell, a battery pack arranged in the shell and positioning equipment arranged in the shell; the shell comprises a first shell and a second shell which are detachably connected, the first shell and the second shell are enclosed into an accommodating cavity, and the positioning equipment and the battery pack are arranged in the accommodating cavity; in order to facilitate the connection between the positioning equipment and the battery pack, a first connecting wire is arranged on the positioning equipment, a second connecting wire is arranged on the battery pack, and the first connecting wire and the second connecting wire are connected through a plug connector, so that the battery pack can supply power to the positioning equipment, and meanwhile, the positioning equipment can acquire the position of the battery pack at any time.

However, electric bicycle often parks in outdoor environment, and water (like rainwater or dew etc.) in the outdoor environment can enter into between first casing and the second casing and hold the intracavity, enters into the water that holds the intracavity and easily contacts with the plug connector of being connected first connecting wire and second connecting wire, and the water that enters into in the plug connector can influence being connected between first connecting wire and the second connecting wire, for example: after water enters the plug connector, the first connecting wire and the second connecting wire are in poor contact, or the first connecting wire or the second connecting wire is in short circuit and the like, so that the positioning equipment cannot normally work, and the position of the battery pack cannot be accurately determined.

The embodiment of the disclosure provides a battery pack, which is provided with a waterproof part in a shell, wherein the waterproof part can prevent water entering the shell from contacting with a plug connector, so that positioning equipment can work normally.

The battery pack provided by the embodiment of the present disclosure includes a housing disposed on an electric bicycle, as shown in fig. 1, the electric bicycle includes a bicycle body 10, a battery pack 20 disposed on the bicycle body 10, wheels 101 disposed at two ends of the bicycle body 10, and a motor drivingly connected to the wheels 101 and disposed on the bicycle body 10, so as to drive the electric bicycle to run through the motor.

With continued reference to fig. 2 and 3, the battery assembly 20 may be disposed on the vehicle body 10 between the two wheels 101, the housing 201 is enclosed into a receiving cavity 202, the battery pack 204 is disposed within the receiving cavity 202, and the battery pack 204 is electrically connected to the motor to supply power to the motor. Further, in order to facilitate charging of the battery pack 204 and maintenance of the battery assembly 20, the battery assembly 20 may be detachably connected to the vehicle body 10; for example, a battery passage may be provided on the vehicle body 10, and the housing 201 may be inserted in the battery passage.

The battery pack 204 disposed in the housing 201 in this embodiment may be a rechargeable battery such as a lithium ion battery or a lead storage battery, so that the battery pack 204 is charged after the electric energy in the battery pack 204 is used up, thereby realizing multiple uses of the battery pack 204. Of course, in some embodiments, the battery pack 204 may also be a non-rechargeable battery.

The battery pack 204 disposed in the receiving cavity 202 may have a regular shape such as a rectangular parallelepiped shape or a cylindrical shape, but the shape of the battery pack 204 is not limited in this embodiment, and the battery pack 204 may have other irregular shapes.

The housing 201 encloses a receiving cavity 202 for storing a battery pack 204, and the housing 201 may have a rectangular parallelepiped shape, a cylindrical shape, or other irregular shapes; illustratively, the housing 201 may include a first housing 2011 and a second housing 2012, the first housing 2011 has a first surface, and the first surface is provided with a first receiving cavity recessed inwards; correspondingly, the second shell 2012 has a second surface, and the second surface is provided with a second accommodating cavity which is recessed inwards; when the first surface and the second surface are attached, the first accommodating cavity and the second accommodating cavity are enclosed to form an accommodating cavity 202. So configured, placement of the battery pack 204 within the housing 201 is facilitated.

With continued reference to fig. 4, to prevent the battery pack 204 from moving within the accommodating cavity 202, a baffle 207 may be disposed at the bottom of the first accommodating cavity and/or the second accommodating cavity, the baffle 207 being disposed around the battery pack 204; the battery pack 204 is prevented from moving within the receiving cavity 202 by the baffle 207 in the first receiving cavity and/or the second receiving cavity.

Further, the first housing 2011 and the second housing 2012 can be detachably connected to each other, so as to facilitate the removal of the battery pack 204 from the housing 201; illustratively, the first housing 2011 and the second housing 2012 can be connected by bolts. Specifically, a first connecting hole whose center line is perpendicular to the first surface may be disposed on the first housing 2011, a second connecting hole perpendicular to the second surface is correspondingly disposed on the second housing 2012, and a fastening bolt is inserted into the first connecting hole and the second connecting hole, so that the first housing 2011 and the second housing 2012 can be connected to each other, and the fastening bolt can make the first surface tightly contact with the second surface. Of course, the first housing 2011 and the second housing 2012 can also be connected in a clamping manner; for example, a claw protruding outward is disposed on the first surface, and a clamping groove is correspondingly disposed on the second surface, so that during installation, the first housing 2011 is close to the second housing 2012, and the claw extends into the clamping groove, and clamping between the first housing 2011 and the second housing 2012 can be achieved.

In this embodiment, the casing 201 may be a plastic casing mainly made of plastic, but the casing 201 may also be a metal casing mainly made of metal materials such as copper and aluminum, and the material of the casing 201 is not limited in this embodiment.

With continued reference to fig. 3 and 4, the battery assembly 20 provided in the present embodiment further includes an electronic device 203 disposed in the housing 201, and the present embodiment does not limit the electronic device 203, and for example, the electronic device 203 may be a positioning device (e.g., a GPS locator based on a GPS positioning system, etc.), and the positioning device may detect the position of the battery assembly 20 so as to prevent the battery assembly 20 from being lost; of course, the electronic device 203 may also be a controller connected to the battery pack 204, a sensor for detecting the temperature of the battery pack 204, or the like.

With continued reference to fig. 4 and 5, further, a mounting slot 206 is provided within the receiving cavity 202 between the battery pack 204 and the top wall of the housing 201, and the electronic device 203 may be disposed within the mounting slot 206. So set up, simple structure just is convenient for electronic equipment 203's dismouting. For example, in an implementation mode in which the housing 201 is composed of the first housing 2011 and the second housing 2012, a first mounting groove may be disposed in the first accommodating cavity, a second mounting groove may be disposed in the second accommodating cavity, and after the first housing 2011 and the second housing 2012 are connected, the first mounting groove and the second mounting groove constitute the mounting groove 206 for accommodating the electronic device 203.

With continued reference to fig. 7-9, in order to supply power to the electronic device 203, a first connection line 2041 is provided on the battery pack 204, a second connection line 2031 is provided on the electronic device 203, and the first connection line 2041 and the second connection line 2031 are connected by a plug connector; can realize dismantling between first connecting line 2041 and the second connecting line 2031 through the plug connector and be connected, so set up the dismouting of the electronic equipment 203 of being convenient for. It is noted that the first connecting line 2041 and the second connecting line 2031 may each include a plurality of lines, for example, the first connecting line 2041 includes two power supply lines, the same second connecting line 2031 also includes two power supply lines, and each of the first connecting lines 2041 is connected to one of the second connecting lines 2031; as such, power may be supplied to the electronic device 203 through the power supply line; of course, the first connecting line 2041 and the second connecting line 2031 may also include several signal lines, and each of the first connecting lines 2041 is connected to one of the second connecting lines 2031 to implement signal transmission between the battery pack 204 and the electronic device 203 through the signal lines.

For example, the plug may include a first plug and a second plug, the first plug is provided with a plurality of metal posts, and each metal post is connected to one line of the first connection lines 2041; correspondingly, the second connector is provided with a plurality of insertion holes, each insertion hole is internally provided with a metal sheet, and each metal sheet is connected with one line in the second connecting line 2031; each metal column on the first connector is inserted into a corresponding insertion hole on the second connector, so that the metal column contacts with a metal sheet in the corresponding insertion hole, and the connection between the first connection line 2041 and the second connection line 2031 can be realized.

In other implementation manners, the plug connector includes a first plug connector and a second plug connector, the first plug connector is provided with a plurality of metal posts, and each metal post is connected with one line of the second connection line 2031; correspondingly, the second connector is provided with a plurality of insertion holes, each insertion hole is internally provided with a metal sheet, and each metal sheet is connected with one line in the first connecting line 2041; each metal column on the first connector is inserted into a corresponding insertion hole on the second connector, so that the metal column contacts with a metal sheet in the corresponding insertion hole, and the connection between the first connection line 2041 and the second connection line 2031 can be realized.

With continued reference to fig. 3-6, in the battery assembly 20 provided in this embodiment, the accommodating cavity 202 is further provided with a waterproof member 205, the waterproof member 205 includes a side wall, the side wall encloses a waterproof cavity 2051, a top end of the waterproof cavity 2051 is closed, and a bottom end of the waterproof cavity 2051 is open; the plug is placed in the waterproof chamber 2051 by the bottom end of the waterproof piece 205. Because the top end of the waterproof cavity 2051 is closed and the bottom end is open, water entering the shell 201 flows downwards under the action of gravity and cannot enter the waterproof cavity 2051; the water entering the housing 201 does not contact the plug connector, so that the first connecting line 2041 and the second connecting line 2031 are in good contact, and the normal operation of the electronic device 203 is ensured.

It should be noted that the bottom end of the waterproof member 205 is one end of the waterproof member 205 facing the ground after the battery pack 20 is mounted on the body 10 of the electric bicycle; accordingly, the top end of the waterproof member 205 is the end of the waterproof member 205 facing away from the ground when the battery assembly 20 is mounted on the body 10 of the electric bicycle.

In this embodiment, the waterproof material 205 may have a regular shape such as a cylindrical shape or a rectangular parallelepiped shape, but the waterproof material 205 may have another irregular shape, and the shape of the waterproof material 205 is not limited in this embodiment. Further, the waterproof member 205 may be a plastic member mainly made of plastic, but the waterproof member 205 may also be a metal member mainly made of metal material such as copper, aluminum, etc., and the material of the waterproof member 205 is not limited in this embodiment.

With continued reference to fig. 9, in the above-described implementation, a sealing portion 2055 that closes the opening may be provided at the bottom end of the waterproof chamber 2051. With such an arrangement, the sealing part 2055 can prevent the water vapor in the accommodating cavity 202 from entering the waterproof cavity 2051 from the bottom end of the waterproof cavity 2051, so as to avoid the contact between water drops formed by the liquefaction of the water vapor in the waterproof cavity 2051 and the plug connector, thereby further ensuring that the first connecting line 2041 is in good contact with the second connecting line 2031; in addition, since the body 10 vibrates during the driving of the electric bicycle, so that the housing 201 vibrates therewith, the sealing part 2055 can prevent water droplets from entering from the bottom end of the waterproof chamber 2051 due to the vibration.

For example, the sealing portion 2055 may include a sealing rubber block located in the opening and wrapping the first connecting line 2041 and the second connecting line 2031; after the sealant is filled in the waterproof cavity 2051 from the bottom end of the waterproof cavity 2051, the sealant is cured to form a sealant block, and the sealant block can be fully contacted with the waterproof cavity 2051, the first connecting line 2041 and the second connecting line 2031, so that the waterproof cavity 2051 is plugged, and the sealing performance is improved. Further, the sealing rubber block may be made of silica gel, but of course, the sealing rubber block may also be made of rubber made of other materials. Specifically, the sealant block may be formed by dispensing or the like.

Of course, in other implementations, the sealing portion 2055 may also be a plastic block, and a groove is provided on the sealing portion 2055, the plastic block is inserted from the bottom end of the waterproof cavity 2051, and the first connecting line 2041 and the second connecting line 2031 extend to the outside of the waterproof piece 205 through the groove.

In the battery assembly 20 provided in this embodiment, the housing 201 has the accommodating cavity 202, the electronic device 203 and the battery pack 204 are both disposed in the accommodating cavity 202, the battery pack 204 is provided with the first connecting line 2041, the electronic device 203 is provided with the second connecting line 2031, and the first connecting line 2041 and the second connecting line 2031 are connected by the plug connector; the waterproof piece 205 is arranged in the accommodating cavity 202, the side wall of the waterproof piece 205 is enclosed into a waterproof cavity 2051, the bottom end of the waterproof cavity 2051 is open, the top end of the waterproof cavity 2051 is closed, and the plug connector is placed in the waterproof cavity 2051 from the bottom end of the waterproof cavity 2051; water drops entering the accommodating cavity 202 flow downwards under the action of gravity, and because the bottom end of the waterproof cavity 2051 is open and the top end is closed, the water drops cannot enter the waterproof cavity 2051; the water entering the housing 201 does not contact the plug connector, so that the first connecting line 2041 and the second connecting line 2031 are in good contact, and the normal operation of the electronic device 203 is ensured.

In the battery assembly 20 of the above embodiment, the waterproof member 205 and the housing 201 may be detachably connected, so that the waterproof member 205 and the housing 201 are conveniently detached and mounted; in addition, in the process of assembling the battery pack 20, the first connecting line 2041 and the second connecting line 2031 can be connected through the plug connector, then the plug connector is placed into the waterproof cavity 2051, and then the waterproof piece 205 is installed on the shell 201, so that the plug connector can be easily placed in the waterproof cavity 2051, and the assembling difficulty of the battery pack 20 is simplified.

With continued reference to fig. 4-6, for example, the waterproof piece 205 may be connected to the housing 201 by a bolt connection, and accordingly, a connection portion 2052 may be provided on the waterproof piece 205, a mounting hole 2053 is provided on the connection portion 2052, a mounting threaded hole 2013 is provided on the housing 201, and a connection bolt passes through the mounting hole 2053 and then cooperates with the mounting threaded hole 2013 to fix the waterproof piece 205 on the housing 201. Simple structure and convenient installation.

Specifically, in a manner that the housing 201 includes the first housing 2011 and the second housing 2012, the mounting screw hole 2013 may be provided on a first receiving cavity on the first housing 2011, on an inner wall, on which the corresponding waterproof 205 is fixed. Of course, the mounting threaded hole 2013 may be provided on the inner wall of the second receiving chamber of the second housing 2012, and the corresponding waterproof member 205 is fixed on the inner wall of the second receiving chamber.

In the above implementation, since the thickness of the housing 201 is small, a process column may be formed on the inner wall of the housing 201, and the mounting screw hole 2013 may be formed on the process column. Further, in order to improve the connection strength between the process column and the inner wall of the casing 201, one or more reinforcing ribs may be disposed between the side wall of the process column and the inner wall of the casing 201.

As shown in fig. 5 and 6, a process groove 2054 is formed in one side of the connecting portion 2052, which is away from the mounting threaded hole 2013, and after the connecting bolt is mounted on the mounting threaded hole 2013, a nut at one end of the connecting bolt can be accommodated in the process groove 2054, so that the nut is prevented from protruding from the connecting portion 2052, and scraping between the nut and other equipment in the housing 201 is avoided.

The connecting part 2052 in this embodiment is disposed at the top end of the waterproof piece 205, and further, the connecting part 2052 is located at a side of the waterproof piece 205 away from the mounting threaded hole 2013; of course, the connection 2052 may also be provided between the top and bottom ends of the flashing 205. The exemplary web 2052 may have an isotactic shape in the form of a plate, although the web 2052 may have other irregular shapes; the connection part 2052 and the waterproof part 205 may be of an integral structure, and of course, the connection part 2052 may also be connected with the waterproof part 205 by clamping or welding.

With continued reference to fig. 3-5, in the above implementation, the housing 201 may include a top wall, a bottom wall, and a peripheral side wall between the top wall and the bottom wall, with the waterproof 205 disposed between the peripheral side wall and the battery pack 204. After entering the housing 201, the external water flows downward along the gap between the peripheral side wall and the battery pack 204, and at this time, the water drops flow downward under the action of gravity, and the water drops cannot enter the waterproof cavity 2051; the water entering the housing 201 does not contact the plug connector, so that the first connecting line 2041 and the second connecting line 2031 are in good contact, and the normal operation of the electronic device 203 is ensured.

As shown in fig. 4 and 5, for example, in an implementation in which the baffle 207 is provided in the first accommodating chamber and/or the second accommodating chamber, the waterproof member 205 may be provided in a space between the baffle 207 and the peripheral sidewall.

With continued reference to fig. 1-6, the embodiment of the present disclosure further provides an electric bicycle, which includes a bicycle body 10, and the battery assembly 20 provided in the foregoing embodiment, where the battery assembly 20 is detachably connected to the bicycle body 10.

In the electric bicycle provided by the embodiment, the housing 201 has the accommodating cavity 202, the electronic device 203 and the battery pack 204 are both arranged in the accommodating cavity 202, the battery pack 204 is provided with the first connecting line 2041, the electronic device 203 is provided with the second connecting line 2031, and the first connecting line 2041 and the second connecting line 2031 are connected through the plug connector; the waterproof piece 205 is arranged in the accommodating cavity 202, the side wall of the waterproof piece 205 is enclosed into a waterproof cavity 2051, the bottom end of the waterproof cavity 2051 is open, the top end of the waterproof cavity 2051 is closed, and the plug connector is placed in the waterproof cavity 2051 from the bottom end of the waterproof cavity 2051; water drops entering the accommodating cavity 202 flow downwards under the action of gravity, and because the bottom end of the waterproof cavity 2051 is open and the top end is closed, the water drops cannot enter the waterproof cavity 2051; the water entering the housing 201 does not contact the plug connector, so that the first connecting line 2041 and the second connecting line 2031 are in good contact, and the normal operation of the electronic device 203 is ensured.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present disclosure, and not for limiting the same; while the present disclosure has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present disclosure.

Claims (11)

1. A battery assembly, comprising:

the shell is used for being arranged on the electric bicycle and is enclosed into an accommodating cavity;

the battery pack is provided with a first connecting wire, the electronic equipment is provided with a second connecting wire, and the first connecting wire and the second connecting wire are detachably connected through a plug connector;

the waterproof part comprises a side wall, a waterproof cavity is enclosed by the side wall, the bottom end of the waterproof cavity is open, the top end of the waterproof cavity is closed, and the plug connector is arranged in the waterproof cavity.

2. The battery module according to claim 1, wherein a bottom end of the waterproof chamber is provided with a sealing portion that closes the opening.

3. The battery assembly of claim 2, wherein the seal comprises a block of sealant within the opening and surrounding the first and second connecting wires.

4. A battery assembly according to any of claims 1 to 3, wherein the waterproof member is removably connected to the housing.

5. The battery pack according to claim 4, wherein the waterproof member is provided with a connecting portion, the connecting portion is provided with a mounting hole, the housing is provided with a mounting threaded hole, and the connecting bolt passes through the mounting hole and then is matched with the mounting threaded hole.

6. The battery assembly of claim 5, wherein the connection portion is disposed at a top end of the waterproof member.

7. The battery assembly of any of claims 1-3, wherein the housing includes a top wall, a bottom wall, and a peripheral side wall between the top wall and the bottom wall, the flashing being disposed between the peripheral side wall and the battery pack.

8. A battery pack according to any of claims 1 to 3, wherein a mounting slot is provided in the receiving cavity between the battery pack and the top wall of the housing, the electronic device being disposed in the mounting slot.

9. A battery pack according to any of claims 1 to 3, wherein the electronic device is a positioning device for detecting the position of the battery pack.

10. The battery pack according to any one of claims 1 to 3, wherein the housing comprises a first housing and a second housing which are detachably connected, a first surface of the first housing is recessed inward to form a first accommodating chamber, a second surface of the second housing is recessed inward to form a second accommodating chamber, and the first accommodating chamber and the second accommodating chamber constitute the accommodating chamber.

11. An electric bicycle, comprising: a vehicle body and a battery assembly as claimed in any one of claims 1 to 10, the battery assembly being removably attachable to the vehicle body.

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