CN211958036U

CN211958036U - Connector, battery pack and electric bicycle

Info

Publication number: CN211958036U
Application number: CN202020558636.9U
Authority: CN
Inventors: 李彦甲; 许连威; 刘海成; 陈卓卓
Original assignee: Beijing Qisheng Technology Co Ltd
Current assignee: Beijing Qisheng Technology Co Ltd
Priority date: 2020-04-15
Filing date: 2020-04-15
Publication date: 2020-11-17
Anticipated expiration: 2030-04-15

Abstract

The embodiment of the disclosure provides a connector, a battery pack and an electric bicycle, wherein the connector comprises a male end and a female end which are mutually matched; the male end comprises a male end base, a bulge is arranged on the male end base, a plurality of positive power supply contact pins and a plurality of negative power supply contact pins are arranged in the bulge, and the plurality of positive power supply contact pins and the plurality of negative power supply contact pins are symmetrically arranged; female end includes female end base, is equipped with the recess with protruding looks adaptation on the female end base, is equipped with a plurality of anodal pin holes and a plurality of negative pole pin hole in the recess, and a plurality of anodal pin holes and a plurality of negative pole pin hole symmetry set up. The socket connector disclosed only inserts the anodal power supply contact pin in the anodal contact pin is downthehole and just can normally work when inserting the negative pole power supply contact pin in the negative pole contact pin is downthehole, can reduce the battery and insert in the battery compartment with unusual direction and bring the problem of potential safety hazard.

Description

Connector, battery pack and electric bicycle

Technical Field

The embodiment of the disclosure relates to the technical field of electric bicycles, in particular to a connector, a battery pack and an electric bicycle.

Background

With the development of battery technology, electric bicycles are produced. Compared with the traditional bicycle, the electric bicycle takes the battery as the energy source, so that the speed of the electric bicycle is higher, the labor is saved, and the use comfort of a user is improved; moreover, the electric bicycle still has the characteristics of small size and convenience, and becomes a preferred tool for people to go on a short trip.

The battery is one of the main parts of the electric bicycle different from the traditional bicycle, and plays an important role. In the prior art, a battery is electrically connected with a male end of a connector on a bicycle body through a female end of the connector, so that electric energy is converted into mechanical energy to drive an electric bicycle to move forward.

In the existing electric bicycle, batteries have a preset insertion direction, and only after the batteries are inserted into a battery compartment according to the preset direction, the female end of the connector and the male end of the connector can be normally connected for power supply. If a user inadvertently inserts a battery into the battery compartment in an incorrect orientation, a potential safety hazard may result from the wrong direction of power access.

SUMMERY OF THE UTILITY MODEL

The embodiment of the disclosure provides a connector, a battery pack and an electric bicycle, which are used for reducing the problem of potential safety hazard caused by the fact that a battery is inserted into a battery compartment in an abnormal direction.

In one aspect, embodiments of the present disclosure provide a connector assembly, including a male end and a female end that are adapted to each other;

the male end comprises a male end base, a bulge is arranged on the male end base, a plurality of positive power supply contact pins and a plurality of negative power supply contact pins are arranged in the bulge, and the plurality of positive power supply contact pins and the plurality of negative power supply contact pins are symmetrically arranged;

the female end comprises a female end base, a groove matched with the protrusion is formed in the female end base, a plurality of positive pin holes and a plurality of negative pin holes are formed in the groove, and the plurality of positive pin holes and the plurality of negative pin holes are symmetrically arranged;

when the male end and the female end are matched in a preset direction, the plurality of positive power supply pins are inserted into the plurality of positive pin holes, the plurality of negative power supply pins are inserted into the plurality of negative pin holes, and the connector assembly is normally conductive; when the male end and the female end are not matched in a preset direction, at least one positive power supply pin is inserted into the negative pin hole, at least one negative power supply pin is inserted into the positive pin hole, and the connector is not conductive.

Optionally, the projection is provided with a plurality of power jacks, and the positive power pin and the negative power pin are both arranged in the power jacks; still be equipped with a plurality of preformed holes in the recess, the preformed hole can with power contact pin hole looks adaptation.

Optionally, four power supply jacks are arranged in the protrusion, and a positive power supply pin and a negative power supply pin are respectively arranged in two adjacent power supply jacks;

be equipped with two power plug pin holes and two preformed holes in the recess, two the power plug pin hole is adjacent to be set up, two the power plug pin hole includes a positive pole plug pin hole and a negative pole plug pin hole.

As for the connector, optionally, the protrusion is rectangular, four power sockets are respectively disposed at four corners of the protrusion, and the positive power pin and the negative power pin are respectively disposed in two power sockets on the long side of the protrusion.

Optionally, the protrusion is further provided with a recessed portion, three signal pins are arranged in the recessed portion, and the three signal pins are distributed in a triangular shape;

the groove is internally provided with a protruding portion, the protruding portion is provided with three signal jacks, the three signal jacks are distributed in a triangular mode, and a triangle formed by the three signal jacks is identical to a triangle formed by the three signal pins.

Optionally, the side of the protruding portion is further provided with a fool-proof groove, and the inner side wall of the recessed portion is provided with a fool-proof protrusion corresponding to the fool-proof groove.

Optionally, at least one guiding column is arranged on the male end base, and the height of the guiding column is greater than that of the protrusion; and the female end base is provided with at least one guide groove matched with the guide column.

Optionally, the male end base is further provided with at least one first fixing hole, the female end base is provided with at least one second fixing hole matched with the first fixing hole, and a fastener sequentially penetrates through the first fixing hole and the second fixing hole to fixedly connect the male end and the female end.

Optionally, a first sealing gasket is disposed on a side of the male end base, which is away from the female end base, and at least one first through hole corresponding to the first fixing hole is disposed on the first sealing gasket; one side of the female end base, which deviates from the male end base, is provided with a second sealing gasket, and the second sealing gasket is provided with at least one second through hole corresponding to the second fixing hole.

The connector as described above, optionally, the bottom of the protrusion is provided with a third gasket.

In another aspect, an embodiment of the present disclosure provides a battery assembly, including a battery and the connector as described above, where a female end of the connector is disposed on a housing of the battery, and a male end of the connector is used for connecting an external device.

In another aspect, an embodiment of the present disclosure provides an electric bicycle, which includes a frame and the battery module as described above, a battery compartment is disposed in the frame, a male end of the connector is disposed in the battery compartment, and the battery is electrically connected to the male end of the connector through a female end of the connector.

The connector comprises a male end and a female end which are mutually matched; the male end comprises a male end base, a bulge is arranged on the male end base, a plurality of positive power supply contact pins and a plurality of negative power supply contact pins are arranged in the bulge, and the plurality of positive power supply contact pins and the plurality of negative power supply contact pins are symmetrically arranged; the female end comprises a female end base, a groove matched with the protrusion is formed in the female end base, a plurality of positive pin holes and a plurality of negative pin holes are formed in the groove, and the plurality of positive pin holes and the plurality of negative pin holes are symmetrically arranged; when the male end and the female end are matched in a preset direction, the plurality of positive power supply pins are inserted into the plurality of positive pin holes, the plurality of negative power supply pins are inserted into the plurality of negative pin holes, and the connector assembly is normally conductive; when the male end and the female end are not matched in the preset direction, at least one positive power supply contact pin is inserted into the negative contact pin hole, at least one negative power supply contact pin is inserted into the positive contact pin hole, and the connector is not conductive. This embodiment is when the public end with the connector and female end cooperation, and only when inserting anodal power supply contact pin in anodal contact pin hole and inserting negative pole power supply contact pin in negative pole contact pin hole, the connector just can normally work, from this, can reduce the battery and insert in the battery compartment and bring the problem of potential safety hazard with unusual direction.

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 view of a connector according to one embodiment of the present disclosure;

FIG. 2 is a cross-sectional view of a connector according to one embodiment of the present disclosure;

FIG. 3 is an exploded view of a connector provided in accordance with one embodiment of the present disclosure, shown from a first perspective;

FIG. 4 is an exploded view of a connector provided in accordance with one embodiment of the present disclosure, shown from a second perspective;

FIG. 5 is an elevational view of the female end of a connector provided in accordance with one embodiment of the present disclosure;

FIG. 6 is a front view of the male end of a connector according to one embodiment of the present disclosure;

FIG. 7 is a front view of the male end of a connector according to another embodiment of the present disclosure;

fig. 8 is a schematic structural diagram of an electric bicycle according to an embodiment of the present disclosure.

Reference numerals:

1-an electric bicycle;

11-a frame;

12-a handlebar assembly;

13-a central control component;

14-a basket;

15-front fender;

16-a front wheel;

17-a saddle;

18-a saddle adjustment assembly;

19-a battery assembly;

20-a rear wheel;

21-pedaling;

22-rear mudguard;

100-male end;

110-male end base;

120-projection;

121-a recess;

122-fool-proof bumps;

130-positive power supply pin;

140-negative power pin;

150-signal pin;

160-a guide post;

170-first fixing hole;

180-a first gasket;

181 — first via hole;

190-a third gasket;

200-a female terminal;

210-a female end base;

220-a groove;

221-a boss;

222-fool-proof groove;

230-positive pin hole;

240-negative pin hole;

250-a signal jack;

260-a guide slot;

270-a second fixing hole;

280-a second gasket;

281-second via.

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 below 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, of the embodiments of the present disclosure.

All other embodiments that can be derived by a person skilled in the art from the embodiments of the disclosure without making any creative effort fall within the protection scope of the embodiments of the disclosure. The embodiments described below and the features of the embodiments can be combined with each other without conflict.

Because of the important role of the battery in the electric bicycle, the present disclosure aims to provide a connector with fool-proof function to improve the safety of the battery in use, in consideration of protecting the battery and the electric bicycle.

The following detailed description of the embodiments of the present disclosure will be given in conjunction with the accompanying drawings so that those skilled in the art can more fully understand the contents of the embodiments of the present disclosure.

Example one

FIG. 1 is a schematic view of a connector according to one embodiment of the present disclosure; FIG. 2 is a cross-sectional view of a connector according to one embodiment of the present disclosure; FIG. 3 is an exploded view of a connector provided in accordance with one embodiment of the present disclosure, shown from a first perspective; FIG. 4 is an exploded view of a connector provided in accordance with one embodiment of the present disclosure, shown from a second perspective; FIG. 5 is an elevational view of the female end of a connector provided in accordance with one embodiment of the present disclosure; FIG. 6 is a front view of the male end of a connector according to one embodiment of the present disclosure; FIG. 7 is a front view of the male end of a connector according to another embodiment of the present disclosure; please refer to fig. 1-7. The embodiment provides a connector, which comprises a male end 100 and a female end 200 which are mutually matched, wherein the male end 100 can be arranged on a vehicle body of an electric bicycle, and the female end 200 can be arranged on equipment such as a battery, and electric energy interaction between the battery and the electric bicycle can be realized through connection of the male end 100 and the female end 200.

The male end 100 includes a male end base 110, and the male end base 110 may have a prism shape or a cylindrical shape, in this embodiment, the male end base 110 has a quadrangular prism shape. The male end base 110 is provided with a protrusion 120, the protrusion 120 may also be in a prism shape or a cylindrical shape, in this embodiment, the protrusion 120 is in a quadrangular prism shape, and the axis of the protrusion 120 is collinear with the axis of the male end base 110. The protrusion 120 is provided with a plurality of positive power pins 130 and a plurality of negative power pins 140, and the plurality of positive power pins 130 and the plurality of negative power pins 140 are symmetrically arranged.

The female terminal 200 includes a female terminal base 210, and the female terminal base 210 may have a prism shape or a cylindrical shape, in this embodiment, the female terminal base 210 has a quadrangular prism shape. The female end base 210 is provided with a groove 220 adapted to the protrusion 120, the groove 220 may be in a prism shape or a cylinder shape, in this embodiment, the groove 220 is in a quadrangular prism shape, and an axis of the groove 220 is collinear with an axis of the female end base 210. A plurality of positive pin holes 230 and a plurality of negative pin holes 240 are arranged in the groove 220, and the plurality of positive pin holes 230 and the plurality of negative pin holes 240 are symmetrically arranged.

When the connector of the embodiment is mated, if the male terminal 100 is mated with the female terminal 200 in a preset direction, the plurality of positive power pins 130 can be inserted into the plurality of positive pin holes 230, the plurality of negative power pins 140 can be inserted into the plurality of negative pin holes 240, and the connector can conduct electricity normally; when the male terminal 100 and the female terminal 200 are not matched in the preset direction, at least one positive power pin 130 is inserted into the negative power pin hole 230, at least one negative power pin 140 is inserted into the positive power pin hole 240, and the connector is not conductive, because the positive power pins 130 and the negative power pins 140 are symmetrically arranged and the positive pin holes 230 and the negative pin holes 240 are symmetrically arranged.

Further, a plurality of power supply jacks are arranged in the protrusion 120, and the positive power supply pin 130 and the negative power supply pin 140 are both arranged in the power supply jacks. For preventing that anodal power contact pin 130 from inserting negative power jack 240, negative pole power contact pin 140 inserts anodal power jack 230 and cause harm such as short circuit, still be equipped with a plurality of preformed holes in recess 220, the preformed hole can with power contact pin hole looks adaptation, the preformed hole is downthehole not set up conducting material, consequently the preformed hole can with power contact pin jogged joint cooperation, but can not realize the function of electricity connection, risk when inserting the error from this can be reduced.

Specifically, in an alternative embodiment, as shown in fig. 3 and 4, four power supply jacks are arranged in the protrusion 120, and the four power supply jacks may be uniformly distributed on the protrusion 120, specifically, the four power supply jacks are uniformly distributed on the protrusion 120 along the circumferential direction. A positive power pin 130 and a negative power pin 140 are respectively arranged in two adjacent power jacks; that is, only two adjacent power jacks of the four power jacks are respectively provided with one positive power pin 130 and one negative power pin 140, and the other two power jacks are not provided with any components. When the power socket is used, the power socket without the component can be inserted into the matched power pin hole, but the electric connection cannot be realized.

Referring to fig. 3 and 4, two power pin holes and two prepared holes are disposed in the groove 220, and both the power pin holes and the prepared holes can be matched with the power pins, specifically, the two power pin holes and the two prepared holes are uniformly distributed on the groove 220 along the circumferential direction, and the two power pin holes are disposed adjacent to each other. The two power pin holes include a positive pin hole 230 and a negative pin hole 240.

As can be seen from the above description, when the male terminal 100 and the female terminal 200 of the connector are mated, the connector will normally operate only when the positive power pin 130 is inserted into the positive pin hole 230 and the negative power pin 140 is inserted into the negative pin hole 240; after the positive power supply pin 130 and/or the negative power supply pin 140 are inserted into the prepared hole, the socket connector cannot work due to the non-conduction of the prepared hole, and therefore the problem of potential safety hazard caused by the fact that the battery is inserted into the battery compartment in an abnormal direction can be solved.

Optionally, in this embodiment, the protrusion 120 is rectangular, four power sockets are respectively disposed at four corners of the protrusion 120, and the positive power pin 130 and the negative power pin 140 are respectively disposed in two power sockets on a long side of the protrusion 120; the corresponding groove 220 is also in a cuboid shape, and four power pin holes are respectively arranged at four corners of the groove 220; the positive pin hole 230 and the negative pin hole 240 are respectively disposed in two power supply pin holes on the long side of the groove 220. The cuboid shape can play a certain fool-proof role, so that the male end 100 and the female end 200 of the connector can be in plug fit only in two directions, and the error insertion rate of a user in use is reduced.

With reference to fig. 3 and fig. 4, further, in order to realize signal interaction between the parts on both sides of the connector, the protrusion 120 is further provided with a recess 121, three signal pins 150 are disposed in the recess 121, and the three signal pins 150 are distributed in a triangular shape. As shown in the figure, three signal pins 150 are disposed in the recess 121 in the present embodiment, and the three signal pins 150 are arranged in a triangle, preferably, the three signal pins 150 are arranged in an equilateral triangle in the present embodiment, and in other alternative embodiments, the three signal pins 150 may also be arranged in a right triangle, an obtuse triangle, and the like.

The groove 220 is further provided with a protruding portion 221, the protruding portion 221 is provided with three signal jacks 250, the three signal jacks 250 are distributed in a triangular shape, and a triangle formed by the three signal jacks 250 is identical to a triangle formed by the three signal pins 150. As shown in the figure, three signal jacks 250 are arranged in the protrusion 221 in this embodiment, and the three signal jacks 250 are arranged in an equilateral triangle.

In the embodiment, a further fool-proof function can be realized through the above arrangement, only when the male end 100 of the connector is inserted into the female end 200 of the connector according to a preset direction, the three signal pins 150 can be smoothly inserted into the three signal jacks 250, and the parts connected to the two ends of the connector can realize normal communication; conversely, the male end 100 of the connector cannot be inserted into the female end 200 of the connector, or the components connected to the two ends of the connector after insertion cannot communicate properly.

Further, as shown in fig. 5 and 7, in an alternative embodiment, two fool-proof grooves 222 are further disposed on the side of the protrusion 221 in the female end 200, as shown in fig. 5, the two fool-proof grooves 222 are disposed on two opposite sides of the protrusion 221, respectively, and the fool-proof grooves 222 are disposed in an offset manner, that is, the fool-proof grooves 222 are not disposed on the midline of the side; in other words, the fool-proof groove 222 is disposed close to one of the two side surfaces adjacent to the side surface on which the fool-proof groove is disposed, and away from the other side surface.

The inner sidewall of the recess 121 of the male end 100 is provided with a fool-proof protrusion 122 corresponding to the fool-proof groove 222. As shown in fig. 7, two fool-proof protrusions 122 are disposed on two opposite inner sidewalls of the recess 121, respectively, and the positions of the fool-proof protrusions 122 are matched with the corresponding fool-proof grooves 222.

Through the above arrangement, when the male end 100 of the connector is matched with the female end 200, the fool-proof protrusion 122 and the fool-proof groove 222 can limit the direction of the male end 100 inserted into the female end 200, so that the fool-proof function is realized, and the male end 100 is prevented from being mistakenly inserted into the female end 200.

Of course, it is clear to those skilled in the art that in other alternative embodiments, the number of the fool-proof grooves 222 may be one, three, four, etc., as long as the fool-proof effect can be achieved.

The structure of the female terminal 200 in this embodiment can also be adapted to the male terminal 100 (as shown in fig. 6) without the fool-proof protrusion 122, and at this time, the fool-proof groove 222 does not work, but other structures such as the arrangement form of the signal jack 250 can still achieve the fool-proof effect.

Furthermore, in order to facilitate the mating between the male terminal 100 and the female terminal 200 and prevent the connection from being dislocated, at least one guiding column 160 is disposed on the male terminal base 110 in this embodiment, and the height of the guiding column 160 is greater than the height of the protrusion 120; the female base 210 is provided with at least one guide slot 260 adapted to the guide post 160. When the male terminal 100 is inserted into the female terminal 200, since the height of the guiding column 160 is greater than that of the protrusion 120, the guiding column 160 will contact with the female terminal 200 first, so as to guide the male terminal 100 to be inserted into the female terminal 200 in a correct manner, thereby preventing the dislocation between each pin and each socket.

Specifically, in this embodiment, as shown in fig. 3 and 4, two guiding columns 160 are disposed on the male end base 110, the two guiding columns 160 are respectively located at two sides of the protrusion 120, and a connection line between the two guiding columns 160 in this embodiment can pass through an axis of the protrusion 120.

The female base 210 is provided with two guiding grooves 260, the two guiding grooves 260 are respectively located at two sides of the groove 220, and a connecting line between the two guiding grooves 260 can pass through an axis of the groove 220 in this embodiment.

Of course, in other alternative embodiments, the number of the guiding studs 160 and the guiding slots 260 may also be three, four, etc., as long as the guiding studs 160 and the guiding slots 260 are ensured to be distributed according to the central symmetry and the effect of positive and negative plug charging of the connector can be achieved.

The male end 100 and the female end 200 of this embodiment can be connected by a fastener. Specifically, the male end base 110 is further provided with at least one first fixing hole 170, the female end base 210 is provided with at least one second fixing hole 270 matched with the first fixing hole 170, and the fastener sequentially penetrates through the first fixing hole 170 and the second fixing hole 270 to fixedly connect the male end 100 with the female end 200. In the above embodiment, the fastening member may be a bolt and a nut, and after the bolt is sequentially inserted through the first fixing hole 170 and the second fixing hole 270, the bolt is fastened by the nut at the other side, so that the male terminal 100 and the female terminal 200 are connected. The number of the first fixing holes 170 may be four, and the four first fixing holes 170 are respectively disposed at four corners of the male end base 110; correspondingly, the number of the second fixing holes 270 may be four, and four second fixing holes 270 are respectively disposed at four corners of the female terminal base 210.

Furthermore, in order to ensure the waterproof sealing performance of the connector, a first sealing gasket 180 is arranged on one side of the male end base 110, which is far away from the female end base 210, the first sealing gasket 180 is used for sealing a gap between the male end base 110 and a part matched with the male end base 110, and at least one first through hole 181 corresponding to the first fixing hole 170 is arranged on the first sealing gasket 180; one side of the female end base 210 departing from the male end base 110 is provided with a second sealing gasket 280, the second sealing gasket 280 is used for sealing the gap between the female end base 210 and the part adapted to the female end base, and the second sealing gasket 280 is provided with at least one second through hole 281 corresponding to the second fixing hole 270. The male end base 110, the female end base 210, the first gasket 180 and the second gasket 280 can be locked and fixed through the fasteners, so that the two sides of the connector are sealed.

In this embodiment, the sealing member further includes a sealing member for sealing the opposite surfaces of the male end 100 and the female end 200, specifically, the bottom of the protrusion 120 is provided with a third sealing gasket 190, and after the male end 100 is inserted into the female end 200, the third sealing gasket 190 can play a role in sealing the contact surface of the male end 100 and the female end 200.

Example two

The present embodiment provides a battery assembly, which includes a battery and the connector as described in the first embodiment, wherein the female end of the connector is disposed on the housing of the battery, and the male end of the connector is used for connecting with an external device.

Specifically, the external device in this embodiment may be, for example, a device such as a body of an electric bicycle, and the battery is mated with a male end of a connector on the external device through a female end of the connector, so as to achieve electrical connection between the two. Due to the adoption of the connector in the first embodiment, when the battery is connected with the vehicle body, the connector can normally work only when the positive power supply pin of the connector is inserted into the positive pin hole and the negative power supply pin of the connector is inserted into the negative pin hole; after the positive power supply pin and/or the negative power supply pin are inserted into the reserved hole, the socket connector cannot work due to the fact that the reserved hole is not conductive, and therefore the problem that potential safety hazards are caused when the battery is inserted into a vehicle body in an abnormal direction can be solved.

EXAMPLE III

FIG. 8 is a schematic view of an electric bicycle according to an embodiment of the present disclosure; please refer to fig. 8. The embodiment provides an electric bicycle, which comprises a frame 11 and a battery assembly as in the second embodiment, wherein a battery compartment is arranged in the frame 11, a male end of a connector is arranged in the battery compartment, and a battery is electrically connected with the male end of the connector through a female end of the connector.

Specifically, as shown in fig. 8, the electric bicycle 1 provided in this embodiment includes a frame 11, and the frame 11 is mainly used for providing assembly support for other components and supporting the weight of the user. The frame 11 is generally "V" -shaped, and has one end connected to the handlebar assembly 12 and the other end connected to the saddle 17.

The handlebar assembly 12 is mainly used for controlling the advancing direction of the electric bicycle 1 and comprises a handlebar, a brake controller and a connecting pipe, the connecting pipe is fixedly connected with a front fork after passing through a frame, a front wheel 16 is fixed on the front fork through a rotating shaft, and therefore the handlebar assembly can drive the front wheel 16 to rotate so as to control the advancing direction of the electric bicycle 1. A front fender 15 is also fixed on the front fork to prevent dirt on the bottom surface from splashing on the user during riding. A central control assembly 13 may be further connected to the middle of the handlebar assembly 12, and the central control assembly 13 is used for information interaction between a user and a server, displaying status information of the electric bicycle 1 at present, and the like. In addition, a basket 14 may also be provided beneath the handlebar assembly 12 to facilitate placement of paraphernalia by a user.

The other end of frame 11 is connected with saddle 17, and saddle 17 passes through saddle adjusting part 18 to be connected on frame 11, and saddle adjusting part 18 can reciprocate along frame 11 to adjust saddle 17's height, the customer of the different heights of adaptation. The side of the frame 11 is also provided with a battery assembly 19, the battery assembly 19 comprises a battery compartment arranged in the frame 11 and a rear fork connected with the frame 11 and a battery arranged in the battery compartment, and the battery is arranged in the battery compartment to realize power supply. The side of the frame 11 away from the handlebar assembly 12 is connected with a rear wheel 20 through a rear fork, and the rear wheel 20 can also be fixed on the rear fork through a rotating shaft. A rear fender 22 is provided above the rear wheel 20, and the rear fender 22 prevents dirt on the underside from being splashed onto the user during riding.

The electric self-forming vehicle 1 further comprises a driving mechanism, wherein the driving mechanism comprises a motor controller arranged below the battery assembly 19, the motor controller is in communication connection with the central control assembly 13, and the motor controller works under the control of the central control assembly 13. The output end of the motor controller drives the rear wheel 20 to rotate through a transmission mechanism so as to realize electric drive; in addition, the electric bicycle 1 can also be kept with a traditional manual driving structure, that is, the pedals 21 are connected with the rear wheel 20 through a transmission mechanism such as a chain wheel and a chain, and the pedals 21 are used for driving the rear wheel 20 to rotate, so that manual driving is realized. In practical use, the two driving modes can be used simultaneously or independently to meet the use requirements under different conditions.

In this embodiment, since the battery module 19 is the battery module described in the second embodiment, when the battery is installed in the battery compartment, the connector will normally operate only when the positive power pin of the connector is inserted into the positive pin hole and the negative power pin of the connector is inserted into the negative pin hole; after the positive power supply pin and/or the negative power supply pin are inserted into the reserved hole, the socket connector cannot work due to the fact that the reserved hole is not conductive, and therefore the problem that potential safety hazards are caused when the battery is inserted into the battery compartment in an abnormal direction can be solved.

In the description of the embodiments of the present disclosure, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience in describing the embodiments of the present disclosure and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the embodiments of the present disclosure.

In the embodiments of the present disclosure, unless otherwise specifically stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral part; either directly or indirectly through intervening media, either internally or in any other relationship. Specific meanings of the above terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art according to specific situations.

It should be noted that, in the description of the embodiments of the present disclosure, the terms "first" and "second" are only used for convenience in describing different components, and are not to be construed as indicating or implying a sequential relationship, relative importance, or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the embodiments of the present disclosure, and not for limiting the same; although embodiments of the present disclosure have 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 respective embodiments of the present disclosure.

Claims

1. A connector is characterized by comprising a male end and a female end which are mutually matched;

2. The connector assembly of claim 1, wherein a plurality of power sockets are provided in said projection, said positive power pin and said negative power pin each being disposed in said power sockets; still be equipped with a plurality of preformed holes in the recess, the preformed hole can with power contact pin hole looks adaptation.

3. The connector assembly of claim 2, wherein four power sockets are provided in said projection, and a positive power pin and a negative power pin are provided in adjacent ones of said power sockets;

4. The connector assembly of claim 3, wherein said projection is rectangular, four of said power sockets are disposed at four corners of said projection, and said positive power pin and said negative power pin are disposed in two of said power sockets on a long side of said projection.

5. The connector assembly of any one of claims 1-4, wherein the protrusion further comprises a recess, and three signal pins are disposed in the recess and are arranged in a triangular pattern;

the groove is internally provided with a protruding portion, the protruding portion is provided with three signal jacks, the three signal jacks are distributed in a triangular mode, and a triangle formed by the three signal jacks is equal to a triangle formed by the three signal pins.

6. The connector assembly of claim 5, wherein the protrusion has a side edge formed with a fool-proof groove, and the recess has an inner side wall formed with a fool-proof protrusion corresponding to the fool-proof groove.

7. The connector of claim 6, wherein said male end base has at least one guide post thereon, said guide post having a height greater than a height of said projection; and the female end base is provided with at least one guide groove matched with the guide column.

8. The connector assembly of claim 1, wherein the male end base further comprises at least one first fastening hole, the female end base comprises at least one second fastening hole adapted to the first fastening hole, and a fastener is inserted through the first fastening hole and the second fastening hole in order to fixedly connect the male end to the female end.

9. The connector assembly of claim 8, wherein a first gasket is disposed on a side of the male end base facing away from the female end base, and the first gasket has at least one first through hole corresponding to the first fixing hole; one side of the female end base, which deviates from the male end base, is provided with a second sealing gasket, and the second sealing gasket is provided with at least one second through hole corresponding to the second fixing hole.

10. Connector assembly according to claim 8, in which the bottom of the projection is provided with a third gasket.

11. A battery pack comprising a battery and a connector as claimed in any one of claims 1 to 10, the female end of the connector being disposed on the housing of the battery and the male end of the connector being for connection to an external device.

12. An electric bicycle comprising a frame and a battery assembly as defined in claim 11, wherein a battery compartment is provided in the frame, a male end of the connector is disposed in the battery compartment, and the battery is electrically connected to the male end of the connector through the female end of the connector.