CN215732090U

CN215732090U - Electric scooter battery structure

Info

Publication number: CN215732090U
Application number: CN202122012332.XU
Authority: CN
Inventors: 梁琪; 蔺会民; 王志云; 曾利强
Original assignee: Shenzhen Harding Energy Co ltd
Current assignee: Shenzhen Harding Energy Co ltd
Priority date: 2021-08-24
Filing date: 2021-08-24
Publication date: 2022-02-01
Anticipated expiration: 2031-08-24

Abstract

The utility model discloses a battery structure of an electric scooter, relates to the technical field of electric scooters, and solves the technical problems that the existing battery structure is large in size, inflexible in wiring and difficult to install in a battery position of the electric scooter. The device comprises a battery unit, a fastener, a connecting sheet and a PCB; the battery unit comprises a plurality of lithium batteries, and a lithium battery pack is formed by the plurality of battery units; the lithium battery is matched with the fastener; the fastener penetrates through the lithium battery pack and fixes the lithium battery and the battery unit; the connecting pieces are arranged at the positive end and the negative end of the lithium battery and are electrically connected with the PCB; and the battery units are electrically connected through the connecting sheets and the PCB. According to the utility model, the fastening piece is used for fastening the inner part of the lithium battery pack, the PCB replaces a wire, and the connecting sheet and the PCB are thin plates, so that the battery structure has small volume and flexible wiring, meets the size requirement, and can be loaded into a battery position of the electric scooter.

Description

Electric scooter battery structure

Technical Field

The utility model relates to the technical field of electric scooters, in particular to a battery structure of an electric scooter.

Background

The electric scooter is a vehicle based on a traditional manpower scooter and provided with an electric power kit. The current electric scooter generally is divided into two-wheel drive or single-wheel drive, and the most common transmission modes are respectively: HUB motors (HUB), and belt drives, the primary source of power for which is a lithium battery pack.

Lithium cell group is one of electric scooter's important part, and at present, electric scooter's battery requires more and more highly, and the battery that different electric scooter needs is also different, and monomer lithium ion battery's key performance can not satisfy the operation requirement, needs carry out the combination of connecting in series and parallel to the monomer to adapt to different users' actual demand. But we also consider the space size of the electric skateboard battery site. The battery space of an existing electric scooter is very limited, the length and width space of the battery is sufficient, but the thickness and the size of a battery compartment are very limited. Because the battery is established ties, is connected with the external equipment with the wire, can make the thickness size of lithium cell exceed standard, the customer can't put into the scooter with the battery. The existing battery structure can not meet the requirement of the electric scooter, and in order to guarantee the function of the battery, an effective battery structure needs to be arranged.

In the process of implementing the utility model, the utility model people find that at least the following problems exist in the prior art:

the existing battery structure is large in size, inflexible in wiring and difficult to install at the battery position of the electric scooter.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a battery structure of an electric scooter, and aims to solve the technical problems that the battery structure in the prior art is large in size, inflexible in wiring and difficult to install at a battery position of the electric scooter. The technical effects that can be produced by the preferred technical scheme in the technical schemes provided by the utility model are described in detail in the following.

In order to achieve the purpose, the utility model provides the following technical scheme:

the utility model provides a battery structure of an electric scooter, which comprises a battery unit, a fastener, a connecting sheet and a PCB (printed Circuit Board); the battery unit comprises a plurality of lithium batteries, and a lithium battery pack is formed by the plurality of battery units; the lithium battery is matched with the fastener; the fastener penetrates through the lithium battery pack and fixes the lithium battery and the battery unit; the connecting pieces are arranged at the positive end and the negative end of the lithium battery and are electrically connected with the PCB; and the battery units are electrically connected through the connecting sheets and the PCB.

Preferably, the PCB is provided with a contact, and the PCB and the connecting sheet are mutually conducted through the contact; the PCB is a thin plate.

Preferably, the connecting piece comprises a first connecting piece and a second connecting piece; the first connection piece connects the lithium batteries of the battery units at the head end and the tail end in parallel; the second connecting sheet connects the lithium batteries of the battery units in parallel and connects the adjacent battery units in series.

Preferably, the connecting sheet is provided with a contact piece, and the contact piece is arranged at the outer edge part of the connecting sheet corresponding to the lithium battery pack and is electrically connected with the PCB.

Preferably, the connecting sheet is made of nickel; the connecting piece is of a hollow structure.

Preferably, the number of the battery cells is seven; seven battery units are connected in series with each other through the connecting sheets; ten of the lithium batteries connected in parallel are one of the battery units.

Preferably, the lithium battery is provided with an insulating ring; the insulating ring is arranged at the anode of the lithium battery; the insulating ring is made of highland barley paper.

Preferably, the fastener comprises a bottom support, a central rod and a claw; the bottom support and the central rod are coaxially connected, and the bottom support and the connecting sheet are matched with each other; the central rod and the hook claw are connected in a penetrating manner, and the hook claw is matched with the central rod of the adjacent fastener; the bottom support, the central rod and the hook claw are of an integrated structure.

Preferably, the fingers include a first finger, a second finger and a third finger; the first claw and the third claw are parallel to each other and are respectively arranged at the upper part and the lower part of the central rod; the second claw is perpendicular to the first claw and the third claw and is arranged in the middle of the central rod.

Preferably, the center rod is provided with a first bump; the hook claw is provided with a mounting hole, a groove and a second bump; the fastener is connected with the mounting hole on the adjacent fastener in a buckling mode through the first lug, and the fastener is connected with the second lug on the adjacent fastener in a buckling mode through the groove.

The implementation of one of the technical schemes of the utility model has the following advantages or beneficial effects:

according to the utility model, the fastening piece is used for fastening the interior of the lithium battery pack, so that the volume of the battery structure is reduced, the PCB replaces a lead, the size of the battery structure is reduced due to the thinness of the PCB, the wiring is flexible, the battery structure is easy to assemble in the assembling process, errors are not easy to occur, the condition that a plurality of wires are mutually wound in a penetrating way is avoided, and wrong wires are not easy to connect. Connection piece and PCB board are the rigid-flex board, can save out sufficient space and give the battery structure, satisfy the equipment size requirement, can make the battery structure pack into this electric scooter's battery position.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:

FIG. 1 is an exploded view of a first perspective of an embodiment of a battery structure for an electric scooter according to the present invention;

FIG. 2 is an exploded view of a second perspective of the battery structure of the electric scooter according to the present invention;

FIG. 3 is a perspective view of an embodiment of the battery structure of the electric scooter of the present invention;

FIG. 4 is a schematic view of a fastener of an embodiment of the battery structure of the electric scooter of the utility model.

In the figure: 1. a battery cell; 2. a fastener; 21. a bottom support; 22. a center pole; 221. a first bump; 23. a hook claw; 231. a first finger; 232. a second finger; 233. a third claw; 234. mounting holes; 235. a groove; 236. a second bump; 3. connecting sheets; 31. a first connecting piece; 32. a second connecting sheet; 33. a contact piece; 4. a PCB board; 41. a contact; 5. a lithium battery; 51. an insulating ring; 6. A lithium battery pack.

Detailed Description

In order that the objects, aspects and advantages of the present invention will become more apparent, various exemplary embodiments will be described below with reference to the accompanying drawings, which form a part hereof, and in which are shown by way of illustration various exemplary embodiments in which the utility model may be practiced. The same numbers in different drawings identify the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. It is to be understood that they are merely examples of processes, methods, apparatus, etc. consistent with certain aspects of the present disclosure as detailed in the appended claims, and that other embodiments may be used or structural and functional modifications may be made to the embodiments set forth herein without departing from the scope and spirit of the present disclosure.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," and the like are used in the orientations and positional relationships illustrated in the accompanying drawings for the purpose of facilitating the description of the present invention and simplifying the description, and do not indicate or imply that the elements so referred to must have a particular orientation, be constructed in a particular orientation, and be operated. The terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. The term "plurality" means two or more. The terms "coupled" and "connected" are to be construed broadly and may include, for example, a fixed connection, a removable connection, a unitary connection, a mechanical connection, an electrical connection, a communicative connection, a direct connection, an indirect connection via intermediate media, and may include, but are not limited to, a connection between two elements or an interactive relationship between two elements. The term "and/or" includes any and all combinations of one or more of the associated listed items. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In order to explain the technical solution of the present invention, the following description is made by way of specific examples, which only show the relevant portions of the embodiments of the present invention.

The first embodiment is as follows:

as shown in fig. 1 to 4, the present invention provides a battery structure of an electric scooter, which includes a battery unit 1, a fastening member 2, a connecting sheet 3 and a PCB 4. The battery unit 1 comprises a plurality of lithium batteries 5, the lithium battery pack 6 is formed by the battery units 1, and the quantity of the lithium batteries 5, the battery units 1 and the lithium battery pack 6 can be adjusted according to the requirements of different electric scooter on voltage and current parameters. The lithium battery 5 is matched with the fastener 2, so that the stability during fastening is ensured, and the situation that the lithium battery is slightly small and loosened or slightly large and cannot be fastened can be avoided. Fastener 2 runs through the inside at lithium cell group 6 to simultaneously fixed lithium cell 5, battery unit 1, thereby realize the fixed of whole lithium cell group 6, a plurality of fasteners 2 evenly run through in lithium cell group 6, realize the steady fixed with every lithium cell 5. Fastener 2 fastens in 6 insides of lithium cell group, has reduced the volume of battery structure, and the battery position of electric scooter is packed into to the battery structure of being convenient for. The connecting pieces 3 are arranged at the positive end and the negative end of the lithium battery 5 and are electrically connected with the PCB 4, so that the circuit can be switched on. A plurality of battery unit 1 are connected through

connection piece

3, 4 electricity of PCB board, and connection piece 3 is the sheet metal, and the texture is softer, and PCB board 4 is the hardboard, and the rigid-flexible board combines the use, can save out sufficient space through rigid-flexible board and give battery structure. According to the utility model, the fastening piece 2 is used for fastening the lithium battery pack 6, so that the volume of the battery structure is reduced, the PCB 4 replaces a lead, and the PCB 4 is thin, so that the volume of the battery structure is reduced, the wiring is flexible, the battery structure is easy to assemble in the assembling process, errors are not easy to occur, the condition that a plurality of wires are mutually threaded and wound is avoided, and wrong wires are not easy to connect. Connection piece 3 and PCB board 4 are the soft or hard combination board, can save out sufficient space and give the battery structure, satisfy the equipment size requirement, can make the battery structure pack into this electric scooter's battery position.

As an alternative embodiment, as shown in fig. 1 and 3, the PCB 4 is provided with a contact 41, and the contact 41 corresponds to the contact piece 33 of the connecting piece 3. The PCB 4 and the connecting sheet 3 are mutually conducted through the contact 41, and the whole battery structure is conducted. The PCB 4 is a thin plate, the thickness of the PCB 4 is 1.0mm, the occupied space in the whole battery structure is small, and the thickness of the whole battery structure can be reduced. PCB board 4 has the dual function of conducting wire and insulating substrate, it can replace complicated wiring, realize the electrical connection between each component in the circuit, and PCB board 4's design is walked the line more nimble, can adjust corresponding with the interface of PCM board, there is not the problem of piling up of wire, whole battery structure's volume has been reduced, if use the wire, the wire is generally arranged in the side of lithium cell group 6, can make the thickness size of battery structure exceed standard, the battery structure can't be put into this electric scooter's battery position.

As an alternative embodiment, as shown in fig. 1 and 2, the connecting piece 3 includes a first connecting piece 31 and a second connecting piece 32. The first connecting piece 31 connects the lithium batteries 5 of the battery units 1 at the head end and the tail end in parallel, the first connecting piece 31 is arranged below the first battery unit 1 (the first is the leftmost one in fig. 2) (the lower is the farthest from the PCB 4 in fig. 2), and the second connecting piece 32 is arranged above the last battery unit 1 (the last is the rightmost one in fig. 2) (the lower is the approaching PCB 4 in fig. 2). The second connecting sheet 32 connects the lithium batteries 5 of two adjacent battery units 1 in parallel, the electrode directions of the lithium batteries 5 in one battery unit 1 are the same, the adjacent battery units 1 are connected in series, the electrode directions of the two adjacent battery units 1 are opposite, the positive and negative electrodes of the second connecting sheet 32 are conducted and connected in series, the lithium batteries 5 connected together through the second connecting sheet 32 are connected in parallel, and the lithium batteries 5 with different electrodes are connected in series.

As an alternative embodiment, as shown in fig. 1 and 2, the connecting sheet 3 is provided with a contact piece 33, the contact piece 33 is used for connecting a protector, the contact piece 33 is connected with a connector, and the connector is an ultra-thin connector. The contact piece 33 is arranged at the outer edge part of the connecting piece 3 corresponding to the lithium battery pack 6 and is electrically connected with the PCB 4, and the arrangement of the position of the contact piece 33 enables the adjacent connecting piece 3 to be free from short circuit due to the conduction of the contact piece 33, so that the safety of a circuit is ensured.

As an alternative embodiment, as shown in fig. 1 and 2, the connecting piece 3 is made of nickel, which is easily welded and not easily oxidized. The connecting piece 3 is of a hollow structure, so that the installation is convenient, and the cost is saved.

As an alternative embodiment, as shown in fig. 2, the number of the battery units 1 is seven, and the number of the battery units 1 may be adjusted according to different requirements. Seven battery cells 1 (1, 2, 3, 4, 5, 6, 7 in order from left to right as shown in fig. 2) are connected in series with each other via a connecting piece 3, the positive electrode of the battery cell 1 having odd numbers (1, 3, 5, 7) is upward, the negative electrode of the battery cell 1 having even numbers (2, 4, 6) is upward, the upper connection and the lower connection are arranged in a staggered manner during series connection, the numbers 1 and 2 of the battery cells 1 are connected in series via a second connecting piece 32 as above, and the

numbers

2 and 3 of the battery cells 1 are connected in series via a second connecting piece 32 below, and the calculation is continued. Ten parallelly connected lithium batteries 5 are a battery unit 1, and ten parallelly connected time minute of lithium batteries 5 are two rows, one row five, and the length and width space of this electric scooter battery position is sufficient, and the lithium battery 5 quantity in the battery unit 1 can be adjusted according to actual demand.

As an alternative embodiment, as shown in fig. 1, the lithium battery 5 is provided with an insulating ring 51, and the insulating ring 51 is disposed at the positive electrode of the lithium battery 5, so that the positive electrode of the lithium battery 5 has good insulating, wear-resistant and waterproof properties, and the short circuit caused by accidental conduction of the positive electrode and the negative electrode when the lithium battery 5 vibrates is effectively prevented. The insulating ring 51 is made of highland barley paper, and the highland barley paper has good insulativity, flexibility, water resistance, wear resistance, grease resistance and aging resistance, and is a good gap plugging material.

As an alternative embodiment, as shown in fig. 1 and 4, the fastener 2 comprises a shoe 21, a central bar 22 and a finger 23. The bottom support 21 and the central rod 22 are coaxially connected, so that the gravity center of the fastener 2 is stable, the bottom support 21 and the connecting piece 3 are matched with each other, the hollow structure sizes of the bottom support 21 and the connecting piece 3 are matched with each other, the bottom support 21 can limit the connecting piece 3, the connecting piece 3 is prevented from being dislocated, and the parallel connection and the series connection of the lithium batteries 5 cannot be realized; the bottom support 21 is provided with the negative end of the battery unit 1, so that the positive end and the negative end can be distinguished conveniently during assembly, and the battery unit 1 is not easy to be wrongly assembled. Well core rod 22, hook 23 through connection, make 2 centrobaric of fastener stable, be difficult for empting, and hook 23 matches each other with well core rod 22 of adjacent fastener 2, and when two adjacent fasteners 2 are connected, hook 23 matches with well core rod 22 shape of adjacent fastener 2, can carry out the butt. Collet 21, well core rod 22 and claw 23 structure as an organic whole is convenient for produce and make, guarantees the steadiness of fastener 2, can not influence fastener 2 fastening lithium cell 5 because the part on the fastener 2 is not hard up or drops. Fastener 2 is insulating material, plays insulating, location, fixed triple effect, can also carry out the anticollision to lithium cell 5, makes lithium cell 5 radiating effect good. In the battery structure, a plurality of fasteners 2 are connected for fixing the lithium battery 5, and the plurality of fasteners 2 are connected for convenient disassembly and assembly and convenient operation when the lithium battery 5 is added or reduced.

As an alternative embodiment, as shown in fig. 4, the fingers 23 include a first finger 231, a second finger 232, and a third finger 233. The first claw 231 and the third claw 233 are parallel to each other and are respectively disposed at the upper portion and the lower portion of the central rod 22, and the first claw 231 and the third claw 233 are mirror-symmetric structures, and use the central rod 22 as a mirror image surface. The second claw 232 is perpendicular to the first claw 231 and the third claw 233, and is disposed in the middle of the central rod 22, and the second claw 232 is of a symmetrical structure and takes the central rod 22 as a symmetry axis.

As an alternative embodiment, as shown in fig. 4, the central rod 22 is provided with a first protrusion 221, and the first protrusion 221 is provided at the upper end and the lower end of the central rod 22, and there are two protrusions. The hook 23 is provided with a mounting hole 234, a groove 235 and a second projection 236, the mounting hole 234 is provided at both ends of the first hook 231 and the third hook 233, the groove 235 is provided at a tip of the second hook 232, the second projection 236 is provided at a middle portion of the second hook 232, and one second hook 232 is provided with four second projections 236. Fastener 2 is connected through first lug 221 and the mounting hole 234 buckle on the adjacent fastener 2, and fastener 2 passes through recess 235 and is connected with the second lug 236 block on the adjacent fastener 2, and when two adjacent fasteners 2 are connected, can carry on spacingly through buckle, block, prevents the fastener dislocation, guarantees that fastener 2 is on same horizontal plane, and then guarantees that lithium cell 5 is also on same horizontal plane. The first and

second projections

221 and 236 abut against the lithium battery 5 and are fastened to prevent the lithium battery 5 from slipping.

The embodiment is only a specific example and does not indicate such an implementation of the utility model.

While the utility model has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the utility model. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.

Claims

1. A battery structure of an electric scooter is characterized by comprising a battery unit, a fastener, a connecting sheet and a PCB; the battery unit comprises a plurality of lithium batteries, and a lithium battery pack is formed by the plurality of battery units; the lithium battery is matched with the fastener; the fastener penetrates through the lithium battery pack and fixes the lithium battery and the battery unit; the connecting pieces are arranged at the positive end and the negative end of the lithium battery and are electrically connected with the PCB; and the battery units are electrically connected through the connecting sheets and the PCB.

2. The battery structure of an electric scooter according to claim 1, wherein the PCB is provided with a contact, and the PCB and the connecting sheet are conducted with each other through the contact; the PCB is a thin plate.

3. The electric scooter battery structure as claimed in claim 1, wherein the connecting piece comprises a first connecting piece and a second connecting piece; the first connection piece connects the lithium batteries of the battery units at the head end and the tail end in parallel; the second connecting sheet connects the lithium batteries of the battery units in parallel and connects the adjacent battery units in series.

4. The battery structure of claim 3, wherein the connecting plate is provided with a contact piece, and the contact piece is arranged at an outer edge of the connecting plate corresponding to the lithium battery pack and electrically connected to the PCB.

5. The battery structure of claim 4, wherein the connecting piece is made of nickel; the connecting piece is of a hollow structure.

6. The electric scooter battery structure as claimed in claim 1, wherein the number of the battery units is seven; seven battery units are connected in series with each other through the connecting sheets; ten of the lithium batteries connected in parallel are one of the battery units.

7. The electric scooter battery structure as claimed in claim 6, wherein the lithium battery is provided with an insulating ring; the insulating ring is arranged at the anode of the lithium battery; the insulating ring is made of highland barley paper.

8. The electric scooter battery structure as claimed in claim 1, wherein the fastener comprises a bottom support, a center rod and a claw; the bottom support and the central rod are coaxially connected, and the bottom support and the connecting sheet are matched with each other; the central rod and the hook claw are connected in a penetrating manner, and the hook claw is matched with the central rod of the adjacent fastener; the bottom support, the central rod and the hook claw are of an integrated structure.

9. The electric scooter battery structure as claimed in claim 8, wherein the fingers include a first finger, a second finger and a third finger; the first claw and the third claw are parallel to each other and are respectively arranged at the upper part and the lower part of the central rod; the second claw is perpendicular to the first claw and the third claw and is arranged in the middle of the central rod.

10. The electric scooter battery structure as claimed in claim 9, wherein the center rod is provided with a first protrusion; the hook claw is provided with a mounting hole, a groove and a second bump; the fastener is connected with the mounting hole on the adjacent fastener in a buckling mode through the first lug, and the fastener is connected with the second lug on the adjacent fastener in a buckling mode through the groove.