Battery and electric two-wheeled vehicle

Abstract

The battery comprises a box body and a battery cell module, the battery cell module is located in the box body, the battery cell module comprises a shell, a mounting frame, a plurality of battery cells, a plurality of battery cells and a plurality of clamping assemblies, the mounting frame is connected to the top end of the shell, the plurality of battery cells are contained in a containing cavity side by side, the top ends of the battery cells are connected to the mounting frame, and the clamping assemblies are arranged on the mounting frame. A tab assembly is arranged between two adjacent battery cells, the tab assembly comprises two first tabs, the clamping assembly comprises two clamping pieces, the two clamping pieces are respectively attached to the two first tabs of the tab assembly, and a first fastener is mounted between the two clamping pieces. According to the battery and the electric two-wheeled vehicle disclosed by the utility model, the tab connection is more convenient, more time-saving and labor-saving, the connection is firmer, the situation that welding slag pierces an aluminum plastic film is avoided, the battery quality is better, and the bending deformation and even fracture caused by overlarge pressure on the bottom end of the battery cell can be prevented; and thus, the service life of the battery cell is longer.

Description

Technical Field

[0001] The utility model relates to the technical field of electric two-wheeled vehicles, in particular to a battery and an electric two-wheeled vehicle. Background Art

[0002] In recent years, electric two-wheeled vehicles have become one of the main means of transportation for people's daily travel. The power source of electric two-wheeled vehicles is batteries. The batteries generally include a box body and a battery cell module. The battery cell module is accommodated in the box body. The battery cell module includes a mounting frame and multiple battery cells connected to the mounting frame.

[0003] Existing batteries have the following disadvantages: first, the pole ears of two adjacent battery cells of the existing battery are connected in series by welding, which is not only troublesome, time-consuming and labor-intensive to operate, but also prone to problems such as loose welding or melting through. In addition, the welding slag generated can easily pierce the external aluminum-plastic film, resulting in poor battery quality; second, the battery cell module of the existing battery is directly placed in the box and fixed by fixing parts. In this way, the bottom end of the battery cell will bear the weight of the entire battery cell module, and the bottom end of the battery cell will bear greater pressure. During long-term use, the bottom end of the battery cell will bend, deform or even break, resulting in a short service life of the battery cell. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a battery that not only makes the connection of the tabs more convenient, saves time and effort, and is more firmly connected, does not cause welding slag to pierce the aluminum-plastic film, and has better battery quality, but also can prevent the bottom of the battery cell from being subjected to excessive pressure, causing bending, deformation, or even breakage, thereby extending the service life of the battery cell.

[0005] The utility model also provides an electric two-wheeled vehicle with the battery.

[0006] According to the battery of the first aspect of the utility model, the embodiment comprises a box body and a battery cell module, wherein the battery cell module is located in the box body, and the battery cell module comprises a shell, a mounting frame, a plurality of battery cells, a plurality of battery cells and a plurality of clamping assemblies, wherein the shell body is formed with a accommodating cavity, and the top end of the accommodating cavity is open, the mounting frame is connected to the top end of the shell body, a plurality of battery cells are accommodated side by side in the accommodating cavity, the top end of the battery cell is connected to the mounting frame so as to be carried on the shell body through the mounting frame, and a pole ear assembly is provided between two adjacent battery cells, the pole ear assembly comprises two first pole ears that are fitted together, and the two first pole ears are respectively connected to the two adjacent battery cells, and the clamping assembly comprises two clamping plates, and the two clamping plates are respectively fitted to the opposite sides of the two first pole ears of the pole ear assembly, and a first fastener is installed between the two clamping plates.

[0007] The battery according to the embodiment of the utility model has at least the following beneficial effects:

[0008] In the utility model, when two adjacent cells of the cell module need to be connected in series, the two first pole ears of the pole ear assembly are fitted, and then the two clamping sheets of the clamping assembly are respectively fitted to the two first pole ears of the pole ear assembly on the opposite side, and the two clamping sheets are connected by the first fastener, and the two clamping sheets can cooperate to clamp the two first pole ears of the pole ear assembly, so that the two first pole ears of the pole ear assembly are kept in a conductive state of mutual fit, so that not only the first pole ear connection is more convenient, more time-saving and labor-saving, but also the connection is more firm, and there will be no welding slag piercing the aluminum-plastic film, and the battery quality is better. In addition, compared with the existing battery, the overall weight of the cell module is borne by the bottom end of the cell. In the battery of the utility model, the multiple cells of the cell module are carried on the shell through the mounting frame at the top thereof, and then carried on the battery box through the shell. In this way, the bottom end of the cell does not need to bear the overall weight of the cell module, and can prevent the bottom end of the cell from being subjected to excessive pressure and causing bending deformation or even fracture, thereby making the cell service life longer.

[0009] According to some embodiments of the utility model, the mounting frame includes a mounting plate, the battery cell is located below the mounting plate, the clamping assembly is attached to the top surface of the mounting plate, the mounting plate is provided with a plurality of clearance grooves, and the first pole ear is inserted into the clearance grooves.

[0010] According to some embodiments of the utility model, the two first pole ears of the pole ear assembly are bent in opposite directions at one end away from the battery core to form a bending portion, the two bending portions are fitted together and clamped between the two clamping plates, and the bending portions are provided with a connecting hole for the first fastener to pass through.

[0011] According to some embodiments of the utility model, the clamping assembly includes two groups, the two groups of clamping assemblies are arranged along the width direction of the battery cell, the clamping assembly extends along the width direction of the battery cell, the mounting plate is provided with a limiting structure corresponding to the clamping assembly, the limiting structure includes two first limiting parts and two second limiting parts, the two first limiting parts are located at the end opposite to each other of the two groups of clamping assemblies, the two first limiting parts respectively abut against the side walls of the clamping assembly on both sides, the two second limiting parts are located at the end close to each other of the two groups of clamping assemblies, the two second limiting parts respectively abut against the side walls of the clamping assembly on both sides, an isolation wall is provided between the two second limiting parts, the isolation wall abuts against the end face of the clamping assembly in the length direction, and the isolation wall is made of electrically insulating material.

[0012] According to some embodiments of the utility model, a first annular insulating plate is provided on the upper surface of the mounting plate, all the clamping components are located on the inner side of the first annular insulating plate, and the two outermost battery cells are provided with a second pole ear, which is located on the outer side of the first annular insulating plate.

[0013] According to some embodiments of the utility model, fixing parts are respectively provided at the four corner positions of the top of the shell, and convex parts are correspondingly provided at the four corner positions of the mounting frame, and the fixing parts include two perpendicular fixing plates, wherein the end face of one of the fixing plates is affixed to the outer wall of the shell and is connected to the shell through a second fastener, and the end face of the other fixing plate is affixed to the bottom face of the convex part and is connected to the convex part through a third fastener.

[0014] According to some embodiments of the utility model, a plurality of card slots are provided at the top end of the side wall of the shell, and the mounting frame is provided with a card connection structure, and the card connection structure includes a plurality of first card connections and a plurality of second card connections, and the plurality of first card connections are respectively provided on both sides of the mounting frame along a first horizontal direction, and the first card connection is located between two adjacent protrusions, and the first card connection is clamped in the card slot, and the plurality of second card connections are respectively provided on both sides of the mounting frame along a second horizontal direction, and the second card connection is located between two adjacent protrusions, and the second card connection is clamped in the card slot;

[0015] The first horizontal direction is perpendicular to the second horizontal direction.

[0016] According to some embodiments of the utility model, the first clamping member includes a first connecting portion and a first snapping portion, the first connecting portion is located on the outside of the shell, the first snapping portion is connected to the first connecting portion and is snapped in the slot; the second clamping member includes a second connecting portion and a second snapping portion, the second connecting portion is located on the inside of the shell, the second snapping portion is connected to the second connecting portion and is snapped in the slot.

[0017] According to some embodiments of the utility model, the mounting frame further includes a partition, which is located above the mounting plate, and a plurality of support columns are provided at the top of the partition. The battery further includes a BMS module, which is connected to the top of the support columns, and a second annular insulating plate surrounding the BMS module is provided at the top of the partition.

[0018] The electric two-wheeled vehicle according to the second embodiment of the utility model comprises the battery described in the first embodiment.

[0019] The electric two-wheeled vehicle according to the embodiment of the utility model has at least the following beneficial effects:

[0020] In the battery of the first embodiment of the utility model, when two adjacent cells of the cell module need to be connected in series, the two first pole ears of the pole ear assembly are fitted, and then the two clamping pieces of the clamping assembly are respectively fitted to the two first pole ears of the pole ear assembly on the opposite side, and the two clamping pieces are connected by the first fastener, and the two clamping pieces can cooperate to clamp the two first pole ears of the pole ear assembly, so that the two first pole ears of the pole ear assembly are kept in a conductive state of mutual fit, so that not only the first pole ear connection is more convenient, more time-saving and labor-saving, but also the connection is more firm, and there will be no welding slag piercing the aluminum-plastic film, and the battery quality is better. In addition, compared with the existing battery, the overall weight of the cell module is borne by the bottom end of the cell, in the battery of the utility model, the multiple cells of the cell module are carried on the shell through the mounting frame at the top thereof, and then carried on the box of the battery through the shell, so that the bottom end of the cell does not need to bear the overall weight of the cell module, and then can prevent the bottom end of the cell from being subjected to excessive pressure and causing bending deformation or even fracture, thereby making the cell service life longer.

[0021] Additional aspects and advantages of the present invention will be partially given in the following description, and some of the additional aspects and advantages will become apparent from the following description, or will be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention is further described below with reference to the accompanying drawings and embodiments, wherein:

[0023] Figure 1 This is a schematic diagram of the overall structure of the battery of the utility model;

[0024] Figure 2 This is a schematic diagram of the structure of the battery after the cover is removed;

[0025] Figure 3 It is a structural schematic diagram of a battery cell module;

[0026] Figure 4 is a schematic diagram of the structure of the shell;

[0027] Figure 5 This is a schematic diagram of the structure of the battery module after the shell is removed;

[0028] Figure 6 for Figure 3 The enlarged view of point A in the middle;

[0029] Figure 7 for Figure 3 The enlarged view of point B in the middle;

[0030] Figure 8 This is a schematic diagram of the installation of the battery cell;

[0031] Fig. 9It is a schematic diagram of two adjacent battery cells connected in series;

[0032] Fig.10 for Fig. 9 Explosion diagram of

[0033] Fig.11 for Figure 8 Enlarged view of point C in the middle.

[0034] Figure Number:

[0035] Box 10;

[0036] Battery cell module 20;

[0037] Housing 100; accommodating cavity 101; fixing portion 102; fixing plate 103; card slot 104;

[0038] Mounting frame 200; mounting plate 201; clearance groove 202; limiting structure 203; first limiting portion 204; second limiting portion 205; isolation wall 206; first annular insulating plate 207; protrusion 208; clamping structure 209; first clamping member 210; second clamping member 211; first connecting portion 212; first buckle portion 213; second connecting portion 214; second buckle portion 215; partition 216; support column 217; second annular insulating plate 218;

[0039] Battery cell 300; tab assembly 301; first tab 302; bending portion 303; connecting hole 304; second tab 305;

[0040] Clamping assembly 400; clamping sheet 401; first fastener 402;

[0041] BMS module 30;

[0042] Cover body 40. DETAILED DESCRIPTION

[0043] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0044] In the description of the present invention, it should be understood that the descriptions involving orientation, such as the orientation or positional relationship indicated as up, down, etc., are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0045] In the description of the present utility model, "a plurality" refers to two or more than two. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0046] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0047] Reference below Figures 1 to 11 A battery and an electric two-wheeled vehicle according to embodiments of the present invention are described.

[0048] According to the battery of the first embodiment of the utility model, Figures 1 to 11 As shown, it includes a box body 10 and a battery cell module 20.

[0049] Among them, the box body 10 can be provided with an installation cavity, and the top of the installation cavity can be open. In addition, a removable cover body 40 can be provided at the top of the installation cavity. The cover body 40 is used to close the box body 10. The cover body 40 can be provided with a balancing socket and a cover plate for opening and closing the balancing socket. The balancing socket is used to connect to an external balancing instrument. The cover body 40 can be provided with a fast charging port, which is used to connect to the fast charging plug of the charging pile to fast charge the battery. The cover body 40 can be provided with a slow charging port, which is used to connect to the slow charging plug of the charging pile to slow charge the battery. In addition, the slow charging port can also be used for battery replacement and discharge. The cover body 40 can be provided with a handle to facilitate battery carrying.

[0050] The battery cell module 20 is located in the box body 10 , and the battery cell module 20 includes a shell 100 , a mounting frame 200 , a plurality of battery cells 300 , a plurality of battery cells 300 , and a plurality of clamping assemblies 400 .

[0051] Among them, the shell 100 can be square, and the shell 100 forms a accommodating cavity 101, and the top of the accommodating cavity 101 is open. The shell 100 can be made of electrically insulating material to reduce the risk of leakage and short circuit. Of course, the shell 100 can also be made of other suitable materials.

[0052] The mounting frame 200 is connected to the top of the shell 100 . The mounting frame 200 can be connected to the top of the shell 100 by fasteners, snap-fitting or other suitable methods. The mounting frame 200 can cover the top of the accommodating cavity 101 .

[0053] Multiple battery cells 300 are accommodated side by side in the accommodating cavity 101, the top of the battery cell 300 is connected to the mounting frame 200, the bottom of the battery cell 300 can contact the bottom of the accommodating cavity 101 of the shell 100, or a gap can be reserved. The battery cell 300 is supported on the mounting frame 200 and indirectly supported on the shell 100 through the mounting frame 200.

[0054] A pole ear assembly 301 is provided between two adjacent battery cells 300, and the pole ear assembly 301 includes two first pole ears 302 that are bonded to each other. The two first pole ears 302 are respectively connected to the two adjacent battery cells 300. Specifically, the battery cell 300 located in the middle is provided with two first pole ears 302, and the two battery cells 300 located on the outermost sides can be provided with one first pole ear 302. The battery cell 300 located in the middle is bonded to the corresponding first pole ears 302 on the adjacent battery cells 300 on both sides through the two first pole ears 302 thereon, and the outermost battery cell 300 is bonded to the corresponding first pole ears 302 on the adjacent battery cells 300 through the one first pole ear 302 thereon.

[0055] The number of clamping assemblies 400 can be the same as the number of pole ear assemblies 301 and correspond one to one. The clamping assembly 400 includes two clamping plates 401, and the two clamping plates 401 are respectively attached to the opposite sides of the two first pole ears 302 of the pole ear assembly 301. A first fastener 402 is installed between the two clamping plates 401. The first fastener 402 can be a blind rivet. The blind rivet has a stable connection and is easy to install. Of course, the first fastener 402 can also be other structures, such as bolts, which will not be repeated here.

[0056] In the utility model, when two adjacent cells 300 of the cell module 20 need to be connected in series, the two first pole ears 302 of the pole ear assembly 301 are fitted together, and then the two clamping pieces 401 of the clamping assembly 400 are respectively fitted to the opposite sides of the two first pole ears 302 of the pole ear assembly 301, and the two clamping pieces 401 are connected by the first fastener 402, and the two clamping pieces 401 can cooperate to clamp the two first pole ears 302 of the pole ear assembly 301, so that the two first pole ears 302 of the pole ear assembly 301 are kept in a conductive state of mutual fitting. In this way, not only the connection of the first pole ear 302 is more convenient, more time-saving and labor-saving, but also the connection is more firm, and in addition, there will be no situation where welding slag pierces the aluminum-plastic film, and the battery quality is better.

[0057] In addition, compared with the existing battery, in the present invention, the overall weight of the battery cell 300 assembly is borne by the bottom end of the battery cell 300. In the battery of the present invention, the multiple battery cells 300 of the battery cell 300 assembly are supported on the shell 100 through the mounting frame 200 at the top thereof, and then supported on the battery box 10 through the shell 100. In this way, the bottom end of the battery cell 300 does not need to bear the overall weight of the battery cell 300 assembly, thereby preventing the bottom end of the battery cell 300 from being subjected to excessive pressure and causing bending, deformation or even breakage, thereby extending the service life of the battery cell 300.

[0058] refer to Figure 8 and Fig.11 As shown, in some embodiments of the utility model, the mounting frame 200 includes a mounting plate 201, the battery cell 300 is located below the mounting plate 201, the clamping assembly 400 is attached to the top surface of the mounting plate 201, and the mounting plate 201 is provided with a plurality of clearance grooves 202, and the first pole ear 302 is inserted into the clearance groove 202. The mounting plate 201 separates the pole ear assembly 301 in the clamping assembly 400 from the battery cell 300, which can reduce the risk of short circuit and improve safety. In addition, the first pole ear 302 is inserted into the clearance groove 202 and clamped by the clamping sheet 401, and the clamping sheet 401 clamps the assembly 400 to the top surface of the mounting plate 201, so that all the battery cells 300 can be hoisted on the mounting plate 201. When the mounting frame 200 is connected to the top of the housing 100, all the battery cells 300 can be carried on the housing 100 through the mounting frame 200, and the structure is simple and easy to assemble.

[0059] refer to Fig.10 and Fig.11 As shown, in some embodiments of the present invention, the ends of the two first pole tabs 302 of the pole tab assembly 301 away from the battery cell 300 are bent in opposite directions to form a bent portion 303, the two bent portions 303 are fitted and clamped between the two clamping pieces 401, and the bent portion 303 is provided with a connection hole 304 for the first fastener 402 to pass through. In this embodiment, the first pole tab 302 is bent to form the bent portion 303, and the end surface of the bent portion 303 in the thickness direction can be parallel to the end surface of the mounting plate 201 in the thickness direction. The clamping piece 401 clamps the bent portion 303 of the two first pole tabs 302 of the pole tab assembly 301. Such a configuration not only makes it more convenient to clamp the clamping piece 401, but also can reduce the situation that the first pole tab 302 slips out of the clearance groove 202, and the assembly is more stable. In addition, the bent portion 303 is provided with a connection hole 304 for the first fastener 402 to pass through, so that the connection between the two first pole tabs 302 is more stable.

[0060] refer to Figure 8As shown, in some embodiments of the present invention, the mounting plate 201 is provided with a limiting structure 203 corresponding to the clamping assembly 400, and the limiting structure 203 is used to limit the movement of the clamping assembly 400. In this embodiment, the limiting structure 203 is provided to reduce the movement of the clamping assembly relative to the mounting plate 201, thereby making the structure of the battery module 20 more stable.

[0061] refer to Figure 8 As shown, in some embodiments of the present invention, the limiting structure 203 includes two first limiting parts 204 and two second limiting parts 205, the two first limiting parts 204 respectively abut against the side walls of one end of the length direction of the clamping assembly 400, and the two second limiting parts 205 respectively abut against the side walls of the other end of the length direction of the clamping assembly 400. In this way, the clamping assembly 400 can be limited by the abutment of the first limiting part 204 and the second limiting part 205, and the friction between the first limiting part 204, the second limiting part 205 and the clamping assembly 400, the structure is simple, the limiting effect is good, and the limiting structure 203 is set in this way, which is convenient for the clamping assembly 400 to be quickly aligned, so that the mounting hole for installing the first fastener 402 on the clamping assembly 400 is quickly aligned with the connecting hole 304 on the bending part 303, and then the installation of the first fastener 402 is simpler and more convenient, and the practicality is better.

[0062] refer to Figure 8 As shown, in some embodiments of the present utility model, the clamping assembly 400 includes two groups, the second limiting portion 205 is located at one end where the two groups of clamping assemblies 400 are close to each other, and a separation wall 206 is provided between the two second limiting portions 205, the separation wall 206 abuts against the end face of the clamping assembly 400 in the length direction, and the separation wall 206 is made of an electrically insulating material. In this embodiment, the separation wall 206 is provided, which can not only further limit the clamping assembly 400, but also cooperate with the first limiting portion 204 and the second limiting portion 205 to quickly align the mounting hole for installing the first fastener 402 on the clamping assembly 400 with the connecting hole 304 on the bending portion 303, thereby making the installation of the first fastener 402 simpler and more convenient. In addition, the separation wall 206 is made of an electrically insulating material, thereby ensuring sufficient electrical clearance and creepage distance, reducing leakage and short circuit phenomena, and having better safety.

[0063] In some embodiments of the present invention, the mounting plate 201 is provided with a heat dissipation port below the clamping assembly 400. The heat dissipation port can dissipate heat from the tab assembly 301 in the clamping assembly 400 to avoid damage caused by excessive temperature. In addition, the weight of the mounting plate 201 can be reduced, thereby reducing the overall weight of the battery.

[0064] refer to Figure 8As shown, in some embodiments of the utility model, a first annular insulating plate 207 is provided on the upper surface of the mounting plate 201, all clamping assemblies 400 are located on the inner side of the first annular insulating plate 207, and the two outermost battery cells 300 are provided with a second pole ear 305, which is located on the outer side of the first annular insulating plate 207.

[0065] The two second pole tabs 305 can be connected to a total positive bus and a total negative bus, respectively, and the total positive bus and the total negative bus are connected to external wires. In this embodiment, a first annular insulating plate 207 is provided, and the first annular insulating plate 207 separates the first pole tab 302 in the clamping assembly 400 from the second pole tab 305 for connecting external wires, which can further reduce leakage and short circuit phenomena, and has better safety.

[0066] refer to Figures 3 to 5 As shown, in some embodiments of the present invention, the four corner positions of the top of the side wall of the shell 100 are respectively provided with fixing parts 102, and the four corner positions of the mounting frame 200 are correspondingly provided with convex parts 208, and the convex parts 208 are connected to the fixing parts 102. For example, the convex parts 208 and the fixing parts 102 can be connected by fasteners. In this embodiment, the detachable connection between the mounting frame 200 and the shell 100 can be achieved by fastener connection between the four convex parts 208 of the mounting frame 200 and the four fixing parts 102 of the shell 100, and the connection is more convenient. In addition, the four convex parts 208 are respectively located at the four corner positions of the mounting frame 200, and the four fixing parts 102 are respectively located at the four corner positions of the top of the shell 100. In this way, the connection between the mounting frame 200 and the shell 100 is more stable, and the vibration of the mounting frame 200 is reduced.

[0067] refer to Figure 4 As shown, in some embodiments of the present invention, the fixing portion 102 includes two perpendicular fixing plates 103, wherein the end surface of one fixing plate 103 is attached to the outer side wall of the housing 100 and connected to the housing 100 via a second fastener, and the end surface of the other fixing plate 103 is attached to the bottom surface of the convex portion 208 and connected to the convex portion 208 via a third fastener. In this embodiment, the fixing portion 102 is configured as two connected and perpendicular fixing plates 103, and the plate surfaces of the two fixing plates 103 are attached to the outer side wall of the housing 100 and the bottom surface of the convex portion 208, respectively. In this way, not only is it more convenient to install the fasteners, but the overall structural strength of the fixing portion 102 is higher, it is less likely to be damaged, and has a longer service life.

[0068] refer to Figures 3 to 7As shown, in some embodiments of the present invention, a slot 104 is provided at the top of the side wall of the housing 100, and a clamping structure 209 is provided on the mounting frame 200, and the clamping structure 209 is clamped with the slot 104. In addition to being connected to the housing 100 by the fastener between the fixing portion 102 and the protrusion 208, the mounting frame 200 is also clamped with the slot 104 by the cooperation of the clamping structure 209 and the slot 104, so that the connection between the mounting frame 200 and the housing 100 is more stable.

[0069] refer to Figures 3 to 7 As shown, in some embodiments of the utility model, the card slot 104 is provided with multiple, the card connection structure 209 includes multiple first card connections 210 and multiple second card connections 211, the multiple first card connections 210 are respectively provided on both sides of the mounting frame 200 along the first horizontal direction, the first card connection 210 is located between two adjacent protrusions 208, the first card connection 210 is clamped in the card slot 104, and the multiple second card connections 211 are respectively provided on both sides of the mounting frame 200 along the second horizontal direction, the second card connection 211 is located between two adjacent protrusions 208, and the second card connection 211 is clamped in the card slot 104, wherein the first horizontal direction is perpendicular to the second horizontal direction. That is, the mounting frame 200 is provided with snap-fitting parts all around, so that the snap-fitting between the mounting frame 200 and the shell 100 is more stable, and the snap-fitting parts are located between two adjacent protrusions 208, for example, can be located in the middle position of the top end of the side wall of the shell 100, so that in addition to the corner position of the mounting frame 200 being connected to the corner position of the shell 100, the side wall of the mounting frame 200 near the middle is also connected to the side wall of the shell 100 near the middle, thereby making the connection between the mounting frame 200 and the shell 100 more stable.

[0070] refer to Figure 6 and Figure 7 As shown, in some embodiments of the present invention, the first clamping member 210 includes a first connecting portion 212 and a first snap portion 213, the first connecting portion 212 is located on the outside of the shell 100, and the first snap portion 213 is connected to the first connecting portion 212 and is snapped into the slot 104; the second clamping member 211 includes a second connecting portion 214 and a second snap portion 215, the second connecting portion 214 is located on the inside of the shell 100, and the second snap portion 215 is connected to the second connecting portion 214 and is snapped into the slot 104.

[0071] Compared with all the clips that are located on the outside of the shell 100, the second connection part 214 of the second clip 211 of this embodiment is located on the inside of the shell 100. The battery cell 300 can limit the second connection part 214 to prevent the second connection part 214 from deforming and swinging inward too much. In this way, the second buckle part 215 on the second connection part 214 can be tightly clipped into the corresponding slot 104, thereby making the connection between the mounting frame 200 and the shell 100 more stable. Compared to all the clips being located on the inner side of the housing 100, the first connection portion 212 of the first clip 210 of this embodiment is located on the outer side of the housing 100, so that the first connection portion 212 can be easily swung outwards. When the mounting frame 200 needs to be separated from the housing 100, the first connection portion 212 can be swung outwards first to separate the first buckle portion 213 on the first connection portion 212 from the corresponding slot 104, and then the second buckle portion 215 on the second connection portion 214 can be separated from the corresponding slot 104, so that the disassembly of the mounting frame 200 is more convenient, more time-saving and labor-saving. In this embodiment, the first clip 210 and the second clip 211 are arranged in this way, which not only ensures that the mounting frame 200 is firmly connected to the housing 100, but also facilitates the disassembly of the mounting frame 200, and is more practical.

[0072] refer to Figure 7 As shown, in some embodiments of the present invention, the mounting frame 200 abuts against the top surface of the side wall of the housing 100. In this way, the overall weight of the mounting frame 200 and the battery cell 300 is directly borne on the side wall of the housing 100 by the mounting frame 200 itself, without being borne on the side wall of the housing 100 by the protrusion 208 or the clamping structure 209, thereby preventing the protrusion 208 or the clamping structure 209 from being damaged by excessive force.

[0073] refer to Figure 3 and Figure 5As shown, in some embodiments of the present invention, the mounting frame 200 further includes a partition 216, the partition 216 is located above the mounting plate 201, and a plurality of support columns 217 are provided at the top of the partition 216. The battery further includes a BMS module 30, the BMS module 30 is connected to the top of the support column 217, and a second annular insulating plate 218 surrounding the BMS module 30 is provided at the top of the partition 216. The BMS module 30 may include a mounting substrate and a battery management system provided on the mounting substrate. BMS is the English abbreviation of battery management system. The BMS module 30 can improve the utilization rate of the battery, prevent the battery from being overcharged and over-discharged, extend the service life of the battery, and monitor the status of the battery. The power line, balancing harness, sampling harness, and communication harness of the battery pack can all be connected to the BMS module 30. In addition, a plurality of support columns 217 are provided on the partition 216 of the mounting frame 200. Four support columns 217 may be provided and located at four corners of the BMS module 30. The support columns 217 may be provided with mounting holes, and the BMS module 30 may be connected to the support columns 217 by bolts. In this embodiment, the support columns 217 are provided, which not only facilitates the installation of the BMS module 30, but also enables a gap to exist between the BMS module 30 and the top surface of the mounting cavity, thereby achieving a better heat dissipation effect. In addition, the partition 216 can separate the battery cell 300 and the BMS module 30, thereby reducing the situation where the battery cell 300 and the BMS module 30 interfere with each other and affect the work, for example, reducing the situation where the electric field of the battery cell 300 and the electric field of the BMS module 30 interfere with each other, or reducing the situation where the heat generated by the battery cell 300 and the heat generated by the BMS module 30 interfere with each other, and the practicality is better. In addition, the battery cell 300 and the BMS module 30 are both installed through the mounting frame 200, without the need for separate installation, so that the battery structure is simpler and the assembly is more convenient. In addition, the mounting frame 200 is provided with a second annular insulating plate 218 surrounding the BMS module 30, and the second annular insulating plate 218 can be made of an electrically insulating material, thereby reducing the risk of leakage and short circuit, and improving safety.

[0074] The electric two-wheeled vehicle according to the second embodiment of the utility model comprises the battery of the first embodiment.

[0075] According to the electric two-wheeled vehicle of the embodiment of the utility model, by adopting the battery of the embodiment of the first aspect of the utility model, when it is necessary to connect two adjacent battery cells 300 of the battery cell module 20 in series, the two first pole ears 302 of the pole ear assembly 301 are fitted together, and then the two clamping pieces 401 of the clamping assembly 400 are respectively fitted on the opposite sides of the two first pole ears 302 of the pole ear assembly 301, and the two clamping pieces 401 are connected by the first fastener 402. The two clamping pieces 401 can cooperate to clamp the two first pole ears 302 of the pole ear assembly 301, so that the two first pole ears 302 of the pole ear assembly 301 are maintained in a conductive state of mutual fitting. In this way, not only the connection of the first pole ears 302 is made more convenient, more time-saving and labor-saving, but also the connection is more firm. At the same time, there is no situation where welding slag pierces the aluminum-plastic film, and the battery quality is better. In addition, compared to the existing battery, in which the overall weight of the battery cell module 20 is borne by the bottom end of the battery cell 300, in the battery of the present invention, the multiple battery cells 300 of the battery cell module 20 are supported on the shell 100 through the mounting frame 200 at the top thereof, and then supported on the battery case 10 through the shell 100. In this way, the bottom end of the battery cell 300 does not need to bear the overall weight of the battery cell module 20, thereby preventing the bottom end of the battery cell 300 from being subjected to excessive pressure and causing bending, deformation or even breakage, thereby extending the service life of the battery cell 300.

[0076] It should be noted that, since the electric two-wheeled vehicle can adopt all the technical solutions of the battery of the first embodiment above, it at least has all the beneficial effects brought by the technical solutions of the first embodiment above, and these additional beneficial effects will not be repeated here.

[0077] It is understandable that other structures and operations of the electric two-wheeled vehicle according to the embodiment of the utility model are known to ordinary technicians in the field and will not be described in detail here.

[0078] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A battery, characterized in that: include: Box; The battery cell module is located in the box, and the battery cell module includes: The housing is formed with a receiving cavity, and the top of the receiving cavity is open; A mounting frame connected to the top of the housing; A plurality of battery cells are accommodated side by side in the accommodation cavity, the top ends of the battery cells are connected to the mounting frame so as to be carried on the housing through the mounting frame, a tab assembly is provided between two adjacent battery cells, the tab assembly comprises two fitted first tabs, and the two first tabs are respectively connected to the two adjacent battery cells; A plurality of clamping assemblies, wherein the clamping assemblies include two clamping plates, the two clamping plates are respectively attached to the opposite sides of the two first pole tabs of the pole tab assembly, and a first fastener is installed between the two clamping plates.

2. The battery according to claim 1, characterized in that The mounting frame includes a mounting plate, the battery cell is located below the mounting plate, the clamping assembly is attached to the top surface of the mounting plate, the mounting plate is provided with a plurality of clearance grooves, and the first pole lug is inserted into the clearance grooves.

3. The battery according to claim 2, characterized in that The two first pole tabs of the pole tab assembly are bent in opposite directions at one end away from the battery core to form a bending portion, the two bending portions are fitted together and clamped between the two clamping pieces, and the bending portion is provided with a connecting hole for the first fastener to pass through.

4. The battery according to claim 2, characterized in that The clamping assembly includes two groups, the two groups of clamping assemblies are arranged along the width direction of the battery core, the clamping assembly extends along the width direction of the battery core, and the mounting plate is provided with a limiting structure corresponding to the clamping assembly, and the limiting structure includes: Two first limiting portions are located at ends of the two groups of the clamping assemblies that are away from each other, and the two first limiting portions respectively abut against the side walls of the clamping assemblies on both sides; Two second limiting parts are located at one end where the two groups of clamping components are close to each other. The two second limiting parts respectively abut against the side walls of the clamping components on both sides. An isolation wall is provided between the two second limiting parts. The isolation wall abuts against the end face of the clamping component in the length direction. The isolation wall is made of electrically insulating material.

5. The battery according to claim 2, characterized in that A first annular insulating plate is provided on the upper surface of the mounting plate, all the clamping components are located on the inner side of the first annular insulating plate, and the two outermost battery cells are provided with a second pole lug, which is located on the outer side of the first annular insulating plate.

6. The battery according to any one of claims 1 to 5, characterized in that The four corner positions at the top of the shell are respectively provided with fixing parts, and the four corner positions of the mounting frame are correspondingly provided with convex parts. The fixing part includes two perpendicular fixing plates, wherein the end face of one of the fixing plates is attached to the outer wall of the shell and is connected to the shell through a second fastener, and the end face of the other fixing plate is attached to the bottom face of the convex part and is connected to the convex part through a third fastener.

7. The battery according to claim 6, characterized in that The top end of the side wall of the housing is provided with a plurality of slots, and the mounting frame is provided with a clamping structure, and the clamping structure includes: A plurality of first clamping members, respectively disposed on both sides of the mounting frame along a first horizontal direction, the first clamping member being located between two adjacent protrusions, and the first clamping member being clamped in the clamping slot; A plurality of second clamping members, respectively disposed on both sides of the mounting frame along a second horizontal direction, the second clamping member being located between two adjacent protrusions, and the second clamping member being clamped in the clamping slot; The first horizontal direction is perpendicular to the second horizontal direction.

8. The battery according to claim 7, characterized in that The first clamping member includes a first connecting portion and a first buckle portion, the first connecting portion is located outside the housing, and the first buckle portion is connected to the first connecting portion and is clamped in the clamping slot; The second clamping member includes a second connecting portion and a second buckle portion, the second connecting portion is located at the inner side of the shell, and the second buckle portion is connected to the second connecting portion and is clamped in the clamping slot.

9. The battery according to any one of claims 2 to 5, characterized in that The mounting frame further includes a partition, the partition is located above the mounting plate, a plurality of support columns are provided on the top of the partition, and the battery further includes: The BMS module is connected to the top of the support column, and the top of the partition is provided with a second annular insulating plate surrounding the BMS module.

10. An electric two-wheeled vehicle, characterized in that: Comprising the battery as claimed in any one of claims 1 to 9.

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