A disassembly-resistant shared power battery module structure

Abstract

The present invention discloses an anti-disassembly shared power battery module structure, which includes a base, a middle barrel located on the base and provided with a storage cavity inside, an upper cover module covering the upper part of the middle barrel, and a battery module located in the storage cavity and assembled as a whole with the base and the upper cover module, wherein the battery module is fixedly assembled on the base through a snap connection, the upper cover module is fixedly assembled above the battery module through a snap connection and the middle barrel is pressed and limited between the base and the upper cover module, the base and the upper cover module are provided with limited grooves, and the battery module is provided with a locking protrusion that is locked in the limited groove. The present invention can effectively prevent artificial disassembly for damage or theft, and ensure the safety of the battery unit in the battery box.

Description

[Technical field]

[0001] The present invention belongs to the technical field of battery modules, and in particular relates to an anti-disassembly shared power battery module structure. [Background technology]

[0002] The current society has higher and higher requirements for the development of green energy, and various energy storage devices are widely used in various fields. In recent years, the application of battery technology has developed rapidly. Among them, with the rapid development of the shared electric power industry, people's daily life has become more and more convenient. However, while shared electric vehicles bring convenience to people, batteries involving key technologies of electric power have brought great challenges to the use of electric vehicles. The battery shells of shared electric vehicle batteries in the existing technology are generally made of plastic materials and are easily disassembled and fastened by screws or glue. When in use, it is easy to be damaged, disassembled, destroyed, and the internal technology is stolen, which cannot guarantee the normal rights and interests of the operating terminal. At the same time, the safety of batteries that have been disassembled by humans is greatly reduced.

[0003] Therefore, it is necessary to provide a new anti-disassembly shared power battery module structure to solve the above problems. [Summary of the invention]

[0004] The main purpose of the present invention is to provide an anti-disassembly shared power battery module structure, which can effectively prevent human disassembly for damage or theft, thereby ensuring the safety of battery cells in the battery box.

[0005] The present invention achieves the above-mentioned purpose through the following technical scheme: an anti-disassembly shared power battery module structure, which includes a base, a middle barrel located on the base and provided with a storage cavity inside, an upper cover module covering the upper part of the middle barrel, and a battery module located in the storage cavity and assembled as a whole with the base and the upper cover module, the battery module is fixedly assembled on the base through a snap connection, the upper cover module is fixedly assembled above the battery module through a snap connection and presses the middle barrel between the base and the upper cover module, the base and the upper cover module are provided with limiting grooves, and the battery module is provided with a locking protrusion that is locked into the limiting groove.

[0006] Furthermore, a first step support surface is formed on the outer peripheral edge of the base, the middle barrel is seated on the first step support surface, and the lower opening of the middle barrel forms a limit assembly structure on the outer periphery of the first vertical enclosure corresponding to the first step support surface;

[0007] A second step support surface is formed on the outer periphery of the bottom edge of the upper cover module, and the second step support surface is abutted against the top of the middle barrel shell. The second vertical enclosure corresponding to the second step support surface forms an enclosure wall structure that cooperates with the upper opening of the middle barrel.

[0008] Furthermore, at least one pair of corner areas of the base is provided with a first mounting hole, and the lower part of the shell of the middle barrel is provided with a first threaded hole corresponding to the first mounting hole, and the base and the middle barrel are fixedly connected by a plurality of first screws passing through the first mounting hole from the bottom and screwing into the first threaded hole;

[0009] At least one pair of corner areas of the upper cover module is provided with a second mounting hole, and the top of the middle barrel shell is provided with a second threaded hole corresponding to the second mounting hole one by one, and the upper cover module and the middle barrel are fixedly connected by a plurality of second screws passing through the second mounting holes from the top and being screwed into the second threaded holes.

[0010] Furthermore, the battery module includes a battery holder, a plurality of battery cells whose two ends are clamped in the battery holder and whose electrode columns extend out of the battery holder, a plurality of connecting nickel sheets that connect the corresponding battery cells in series or in parallel according to a series-parallel scheme, and an insulating sheet located on the relatively outer side surface of the battery holder and covering all the connecting nickel sheets.

[0011] Furthermore, the battery bracket includes a front battery bracket and a rear battery bracket that are relatively arranged, and the front battery bracket and the rear battery bracket both include a bracket body and a plurality of accommodating hole grooves opened on the bracket body, the accommodating hole groove openings in the front battery bracket and the accommodating hole groove openings in the rear battery bracket are arranged relatively to each other, and the two ends of the battery cell are inserted into the accommodating hole grooves; the bracket body includes a vertical panel and a edging formed by extending vertically and horizontally from the outer edge of the vertical panel.

[0012] Furthermore, the accommodating hole groove is formed by horizontally extending from the surface of the vertical panel, and the surface of the vertical panel is provided with anti-rotation avoidance openings corresponding to the accommodating hole grooves one by one; the anti-rotation avoidance openings include horizontally distributed waist-shaped holes that are shaped like the electrode column, and avoidance openings distributed vertically downward from the middle of the waist-shaped holes.

[0013] Furthermore, the vertical panel is provided with a boss protruding horizontally outward, and at least two pairs of the bosses are respectively arranged at the upper and lower parts of the vertical panel, and the insulating paper is attached to the inner wall surface of the middle barrel.

[0014] Furthermore, the base is provided with a plurality of first buckles extending vertically upward, the bottom of the upper cover module is provided with a plurality of second buckles extending downward, the lower part of the vertical panel is provided with a plurality of first buckles for engaging with the first buckles; the upper part of the vertical panel is provided with a plurality of second buckles for engaging with the second buckles.

[0015] Furthermore, a plurality of first limiting grooves are provided in the base, the lower surface of the upper cover module extends downward to form a second limiting groove, the bottom of the bracket body extends vertically downward to form a first locking protrusion that is inserted into the first limiting groove, and the top of the bracket body extends vertically upward to form a second locking protrusion that is inserted into the second limiting groove.

[0016] Furthermore, the outer peripheral surface of the upper cover module is provided with a plurality of vertically distributed undercut structures and positioning slots; a top outer cover is assembled on the upper cover module, and the top outer cover has an edge shell covering the outer peripheral surface of the upper cover module and an upper cover plate covering the upper surface of the upper cover module; the inner wall surface of the edge shell is provided with a third clip that cooperates with the undercut structure, and a positioning strip that is inserted into the positioning slot and cooperates with the positioning slot for positioning; the upper cover plate is provided with an avoidance notch for exposing the set area of ​​the upper cover module.

[0017] Furthermore, a battery management system circuit board unit and a charging connector electrically connected to the battery management system circuit board and used for charging connection are fixedly arranged in the upper cover module; the battery management system circuit board unit includes a single-chip computer module, a BMS circuit board electrically connected to the single-chip computer module, a communication module, a GPS module, a power detection module and an intelligent circuit protection module; the BMS circuit board, the communication module and the GPS module are electrically connected;

[0018] A charge and discharge connector electrically connected to the battery management system circuit board is provided at the bottom of the base; the battery module includes a collection line electrically connected to the connecting nickel sheet at one end and electrically connected to the battery management system circuit board at the other end.

[0019] Furthermore, a first sealing ring for sealing the connection interface between the base and the middle barrel is provided on the first step support surface; and a second sealing ring for sealing the connection interface between the middle barrel and the upper cover module is provided on the second step support surface.

[0020] Compared with the prior art, the beneficial effect of the anti-disassembly shared power battery module structure of the present invention is that: it sets a base, an upper cover, and a battery module, and connects the base, the upper cover and the battery module into a whole through a buckle structure, so as to achieve the purpose that the upper cover and the battery module, and the battery module and the base cannot be disassembled and separated; and a middle barrel is set between the upper cover and the base to sleeve the battery module therein, and the top and bottom of the middle barrel are connected to the upper cover and the base by screws, and an external top cover is buckled on the upper cover to hide the upper screws inside, so that the upper screws cannot be disassembled, further improving the overall security of the battery module. Structural and anti-disassembly properties; a sealing ring is set on the junction surface of the middle barrel, the upper cover and the base to improve the overall sealing and waterproof properties of the battery module, and improve the safety and service life of the battery module; the positioning module can enable the operation terminal to grasp the position of the battery in real time, and the BMS circuit board can realize effective management of the battery, and the battery information can be sent to the battery operation terminal; insulating sheets are set at the front and rear of the battery module, and the battery module is fixed by the front and rear brackets, and then welded and fixed to the front and rear connecting nickel sheets, which is safer and easy to use, and is convenient for anti-disassembly shared electric vehicles and household electric vehicles. Battery replacement and use.

Brief Description of the Drawings

[0021] Figure 1 This is a schematic diagram of the three-dimensional structure of the barrel in a transparent display state according to an embodiment of the present invention;

[0022] Figure 2 It is a schematic diagram of the explosion structure of an embodiment of the present invention;

[0023] Figure 3 It is a structural schematic diagram of a base in an embodiment of the present invention;

[0024] Figure 4 A schematic diagram of the structure of the base at another angle in an embodiment of the present invention;

[0025] Figure 5 A schematic diagram of the structure of a battery module in an embodiment of the present invention;

[0026] Figure 6 A schematic diagram of the structure of a battery bracket in an embodiment of the present invention;

[0027] Figure 7 This is a schematic diagram of the structure of the upper cover module in an embodiment of the present invention;

[0028] Figure 8 This is a structural schematic diagram of the upper cover module from another angle in an embodiment of the present invention;

[0029] Fig. 9 A schematic diagram of the structure of a circuit board unit of a battery management system in an embodiment of the present invention;

[0030] Fig.10 This is a schematic diagram of the structure of the top outer cover in an embodiment of the present invention;

[0031] The numbers in the figure represent:

[0032] 100% anti-disassembly shared power battery module structure;

[0033] 1 base, 11 first step support surface, 12 first vertical enclosure, 13 first mounting hole, 14 first buckle, 15 first limiting groove, 16 first reinforcing rib, 17 first weight reduction groove, 18 charging and discharging connector;

[0034] 2 middle barrel, 21 receiving cavity, 22 second threaded hole;

[0035] 3 upper cover module, 31 second step support surface, 32 second vertical enclosure, 33 second limiting groove, 34 second buckle, 35 second mounting hole, 36 undercut structure, 37 positioning slot, 38 handle, 39 battery management system circuit board unit, 391 BMS circuit board, 392 communication module, 393 GPS module, 310 charging connector, 311 third step support surface;

[0036] 4 battery module, 41 battery bracket, 411 front battery bracket, 412 rear battery bracket, 413 bracket body, 4131 vertical panel, 4132 edging, 4133 anti-rotation avoidance opening, 41331 waist-shaped hole, 41332 avoidance opening, 4134 threading hole, 4135 slot, 4136 first bayonet, 4137 second bayonet, 4138 reinforcing rib, 4139 positive and negative wire threading opening, 414 accommodating hole slot, 415 first clamping convex block, 416 second clamping convex block, 417 boss, 42 battery cell, 421 electrode column, 43 connecting nickel sheet, 44 insulating sheet;

[0037] 5 first screw; 6 second screw; 7 top outer cover, 71 edge casing, 72 upper cover plate, 73 third buckle, 74 positioning strip, 75 avoidance gap; 8 first sealing ring; 9 second sealing ring. [Specific implementation method]

[0038] Embodiment 1:

[0039] like Figure 1-Figure 10 As shown, the present embodiment is an anti-disassembly shared power battery module structure 100, which includes a base 1, a middle barrel 2 located on the base 1 and provided with a storage cavity 21 inside, an upper cover module 3 covering the upper part of the middle barrel 2, and a battery module 4 located in the storage cavity 21 and assembled with the base 1 and the upper cover module 3 as a whole. The battery module 4 is fixedly assembled on the base 1 by a snap connection, and the upper cover module 3 is fixedly assembled above the battery module 4 by a snap connection and presses the middle barrel 2 to be confined between the base 1 and the upper cover module 3.

[0040] The top peripheral edge of the base 1 is formed with a first step support surface 11, the middle barrel 2 is seated on the first step support surface 11, and the lower opening of the middle barrel 2 cooperates with the first vertical enclosure 12 of the first step support surface 11 to form a limiting structure. At least one pair of corner areas of the base 1 is provided with a first mounting hole 13, and the lower part of the shell of the middle barrel 2 is provided with a first threaded hole (not marked in the figure) corresponding to the first mounting hole 13. The base 1 and the middle barrel 2 are fixedly connected by a plurality of first screws 5 passing through the first mounting hole 13 from the bottom and screwed into the first threaded hole, thereby strengthening the connection strength between the base 1 and the middle barrel 2 and improving the overall structural property of the battery module structure. The outer periphery of the first vertical enclosure 12 is arranged inside the lower opening of the middle barrel 2 and forms a waterproof enclosure structure of the base 1, thereby improving the waterproof property inside the base 1.

[0041] The base 1 is provided with a plurality of first buckles 14 extending vertically upward, which are used to form a buckle connection structure with the battery module 4. The base 1 is also provided with a plurality of first limiting grooves 15 for limiting the installation of the battery module 4. The base 1 is provided with a plurality of first reinforcing ribs 16 and a plurality of first weight-reducing grooves 17 formed by the first reinforcing ribs 16.

[0042] The main body of the middle barrel 2 is made of aluminum alloy, and the height of the middle barrel can be freely cut according to needs through extrusion molding.

[0043] The base 1 and the upper cover module 3 can be made of engineering plastics.

[0044] The battery module 4 includes a battery holder 41, a plurality of battery cells 42 whose two ends are clamped in the battery holder 41 and whose electrode columns 421 extend out of the battery holder 41, a plurality of connecting nickel sheets 43 that connect the corresponding battery cells 42 in series in a series-parallel scheme to form a sub-power module, and an insulating sheet 44 located on the relatively outer side surface of the battery holder 41 and covering all the connecting nickel sheets 43.

[0045] The battery bracket 41 can be made of engineering plastic. The battery bracket 41 includes a front battery bracket 411 and a rear battery bracket 412 that are arranged opposite to each other. The front battery bracket 411 and the rear battery bracket 412 have the same structure and both include a bracket body 413 and a plurality of accommodating holes 414 opened on the bracket body 413. When in use, the opening of the accommodating holes 414 in the front battery bracket 411 is arranged opposite to the opening of the accommodating holes 414 in the rear battery bracket 412, and the two ends of the battery cell 42 are inserted into the accommodating holes 414. The accommodating holes 414 are distributed in an array or a honeycomb shape as a whole.

[0046] The overall shape of the bracket body 413 is a rectangular parallelepiped, which includes a vertical panel 4131 and a edging 4132 extending vertically and horizontally from the outer edge of the vertical panel 4131. The accommodating hole groove 414 is extended from the side surface of the vertical panel 4131 along the extension direction of the edging 4132. The number of accommodating hole grooves 414 is consistent with the number of batteries, which is 30, and is staggered in six rows and five columns. The accommodating hole groove 414 is a circular hole, and its axis extends along the thickness direction of the bracket body 413. In this embodiment, the axis of the accommodating hole groove 414 extends along the Y coordinate axis. One end of the accommodating hole groove 414 is open and the other end is blocked by the vertical panel 4131 to limit the end of the cylindrical battery. The opening is for one end of the cylindrical battery to be inserted and fixed. The inner diameter of the accommodating hole groove 414 is substantially equal to the outer diameter of the cylindrical battery, and one end of the cylindrical battery is inserted into the accommodating hole groove 414.

[0047] The surface of the vertical panel 4131 is provided with an anti-rotation avoidance opening 4133 corresponding to the accommodating hole groove 414. The anti-rotation avoidance opening 4133 is a T-shaped hole structure. The vertical panel 4131 can be pressed against the outer surface of the battery cover plate inserted into the accommodating hole groove 414 to limit the displacement of one end of the battery cell 42 inserted into the accommodating hole groove 414 in the horizontal direction (Y coordinate axis). The anti-rotation avoidance opening 4133 includes a horizontally distributed waist-shaped hole 41331 that is shaped like the electrode column 421, and an avoidance opening 41332 that is vertically distributed downward from the middle of the waist-shaped hole 41331. The avoidance opening 41332 is used to expose the battery cell injection hole and the sealant drop-shaped object. The above-mentioned anti-rotation avoidance opening 4133 is a through hole for the battery pole and the filling hole sealant. By being set in a T shape, it can prevent the battery cell from being installed upside down, ensure that the filling hole is facing downward, and at the same time limit the battery pole to limit the rotational displacement of one end of the battery cell 42 inserted into the accommodating hole groove 414 in the XZ axis direction.

[0048] A plurality of threading holes 4134 are provided on the vertical panel 4131, and slots 4135 corresponding to and connected to the threading holes 4134 are provided on the left and right surfaces of the hemming 4132. The slots 4135 and the threading holes 4134 are mainly used to collect wires and constrain the wire harness to ensure the neatness of the wires in the battery module. The wires can be uniformly output or input from both sides of the bracket body 413 and inserted into the threading holes 4134 through the slots 4135.

[0049] The vertical panel 4131 is provided with a plurality of first snap-fitting openings 4136 for snap-fitting with the first snap-fitting openings 14, and the first snap-fitting openings 4136 are distributed at the lower part of the vertical panel 4131. The upper part of the vertical panel 4131 is provided with second snap-fitting openings 4137.

[0050] The bottom of the bracket body 413 extends vertically downward to form a plurality of first positioning protrusions 415, which are inserted into the first limiting groove 15 to realize the assembly and positioning of the battery module 4 and the base 1. In this embodiment, a pair of first positioning protrusions 415 are provided, which are mainly used to cooperate with the first limiting groove 15 on the base to realize the limiting of the bracket body 413, prevent the battery bracket 41 from shaking as a whole in the middle barrel 2, and play a role in supporting the battery module 4. The top of the bracket body 413 extends vertically upward to form a plurality of second positioning protrusions 416. The first positioning protrusions 415 and the second positioning protrusions 416 include but are not limited to square block structures, pentagonal block structures, or trapezoidal block structures, etc., which are not limited in this embodiment.

[0051] The surface of the vertical panel 4131 is also provided with a plurality of bosses 417 protruding outward horizontally. There are four bosses 417 divided into two pairs and respectively arranged at the upper and lower parts of the vertical panel 4131. The function of the bosses 417 is to prevent the connecting nickel sheet 43 and the electrode column 421 from being welded and contacting the inner wall of the middle barrel 2 to form a short circuit structure when assembled into the middle barrel 2. Therefore, the inner wall of the middle barrel 2 can be effectively isolated from the connecting nickel sheet 43 by the bosses 417.

[0052] A plurality of second reinforcing ribs 4138 are further disposed on the bracket body 413. The second reinforcing ribs 4138 are disposed in a space surrounded by the edge 4132 and reinforce the strength of the edge 4132 and the vertical panel 4131.

[0053] The vertical panel 4131 is also provided with positive and negative wire threading openings 4139 for the positive and negative wires of the battery module to pass through.

[0054] The battery cell 42 in this embodiment is a cylindrical battery with a protruding pole. The number of battery cells 42 can be determined according to specific needs. In this embodiment, the number of cylindrical batteries in each battery module is 30, which is consistent with the number of accommodating slots 414, and is staggered in six rows and five columns. Electrode columns 421 are provided at both ends of the battery cell 42, and the electrode columns 421 extend out of the surface of the vertical panel 4131 through the anti-rotation avoidance opening 4133. The single-piece connecting nickel sheet 43 connects the corresponding multiple battery cells 42 in series into a sub-power module according to the series-parallel design scheme, and then the multiple sub-power modules are connected in parallel to achieve the set voltage and current indicators.

[0055] The insulating sheet 44 is attached to the inner wall surface of the middle barrel 2. It is used to prevent the charged metal from being exposed and prevent the connecting nickel sheet 43 from being electrically connected to the conductor of the middle barrel 2. The insulating sheet 44 is made of epoxy resin. The connecting nickel sheet 43 and the electrode column 421 are connected by light-collecting welding. The connecting nickel sheet 43 changes its shape according to the requirements of series or parallel connection.

[0056] A second step support surface 31 is formed on the outer periphery of the bottom edge of the upper cover module 3, and the second step support surface 31 is in contact with the top of the shell of the middle barrel 2. The second vertical enclosure 32 of the second step support surface 31 surrounds and forms a enclosure wall structure that matches the upper opening of the middle barrel 2. The lower surface of the upper cover module 3 extends downward to form a second limiting groove 33 that matches the battery module 4. The second positioning protrusion 416 on the top of the battery bracket 41 extends into the second limiting groove 33 to achieve assembly positioning of the upper cover module 3 and the battery module 4.

[0057] A plurality of second buckles 34 are provided on the bottom of the upper cover module 3 extending downward, and the second buckles 34 are snapped into the second snap openings 4137 to realize the snap assembly connection between the upper cover module 3 and the battery module 4 .

[0058] At least one pair of corner areas of the upper cover module 3 is provided with a second mounting hole 35, and the top of the outer shell of the middle barrel 2 is provided with a second threaded hole 22 corresponding to the second mounting hole 35. The upper cover module 3 and the middle barrel 2 are fixedly connected by a plurality of second screws 6 that pass through the second mounting holes 35 from the top and are screwed into the second threaded holes 22, thereby strengthening the connection strength between the upper cover module 3 and the middle barrel 2 and improving the overall structural property of the battery module structure.

[0059] The outer peripheral surface of the upper cover module 3 is provided with a plurality of vertically distributed undercut structures 36 and positioning slots 37. The upper cover module 3 is also provided with a top outer cover 7, which has an edge-wrapped shell 71 covering the outer peripheral surface of the upper cover module 3 and an upper cover plate 72 covering the upper surface of the upper cover module 3. The inner wall surface of the edge-wrapped shell 71 is provided with a third buckle 73 cooperating with the undercut structure 36 and a positioning insert 74 inserted into the positioning slot 37 and cooperating with the positioning slot 37 for positioning. The upper cover plate 72 is provided with an avoidance notch 75 for exposing the set area of ​​the upper cover module 3.

[0060] A handle 38 is provided on the upper cover module 3. The handle 38 is a telescopic handle.

[0061] A battery management system circuit board unit 39 and a charging connector 310 electrically connected to the battery management system circuit board 39 and used for charging connection are fixedly arranged in the upper cover module 3. The avoidance gap 75 exposes the handle 38 and the charging connector 310. The battery management system circuit board unit 39 includes a BMS circuit board 391, a communication module 392 and a GPS module 393, a single-chip computer module, a power detection module and an intelligent circuit protection module. The BMS circuit board 391, the communication module 392 and the GPS module 393 are electrically connected. The GPS module 393 is used to locate the battery module in real time and obtain the location information of the battery module. The communication module 392 is used to send the positioning information of the GPS module 393 and the battery management information of the BMS circuit board 391 to the control center in real time. The communication module 392 is a 3G / 4G / 5G communication module.

[0062] The outer circumferential surface of the upper cover module 3 is also provided with a third step support surface 311 distributed around it, and the outer circumferential bottom of the shell of the top outer cover 7 is seated on the third step support surface 311. The top outer cover 7 covers all the second screws 6, the two end structures of the handle 38, the undercut structure 36 and the positioning slot 37 exposed on the outer surface of the upper cover module 3, which plays a role in aesthetics.

[0063] The top cover 7 is provided with "Charging this side up" and "↑" symbols to provide directional reminders when placing the charger in the charging cabinet. A square groove of the same size is provided at the lower left corner of the top cover 7 corresponding to the charging and discharging connector 18, which is used to paste a QR code so that the user can scan the code to receive and use it conveniently, which plays a role of identification.

[0064] The bottom of the base 1 is provided with a charging and discharging connector 18 for charging and discharging connection. A guide groove structure is formed around the plug interface corresponding to the charging and discharging connector 18 to prevent the charging and discharging connector 18 from being damaged due to mis-plugging or misalignment of the plug interface when plugging with the male plug, thereby protecting the safety of the charging and discharging connector 18. The bottom of the base 1 is provided with engravings of the name and contact number of the operating company, which is integrated with the base 1 and is indelible.

[0065] The charge and discharge connector 18 is electrically connected to the battery module 4 and the battery management system circuit board 39 .

[0066] A first sealing ring 8 is provided on the first step support surface 11 to seal the connection interface between the base 1 and the middle barrel 2. A through hole for the first screw 5 to pass through is correspondingly provided on the first sealing ring 8. A second sealing ring 9 is provided on the second step support surface 11 to seal the connection interface between the middle barrel 2 and the upper cover module 3. A through hole for the second screw 6 to pass through is correspondingly provided on the second sealing ring 9. The first sealing ring 8 and the second sealing ring 9 improve the sealing inside the battery module structure 100, improve the overall waterproofness and safety of the internal battery module 4, and improve the service life.

[0067] The battery module 3 also includes a collection line (not shown in the figure) which is electrically connected to the connecting nickel sheet 43 at one end and electrically connected to the battery management system circuit board 39 at the other end. The battery management system circuit board 39 obtains information such as the voltage, temperature, and capacity of the battery cell 42 through the collection line. The collection line is inserted into the threading hole 4134 from the slot 4135 and then connected to the battery management system circuit board 39 from the side of the battery module 3.

[0068] The present embodiment provides an anti-disassembly shared power battery module structure 100, which is provided with a base, an upper cover, and a battery module, and the base, the upper cover and the battery module are connected into a whole through a snap structure, so as to achieve the purpose that the upper cover and the battery module, and the battery module and the base cannot be disassembled and separated; and a middle barrel is provided between the upper cover and the base to house the battery module, and the top and bottom of the middle barrel are connected to the upper cover and the base through screws, and an external top cover is snapped on the upper cover to hide the upper screws inside, so that the upper screws cannot be disassembled either, which further improves the overall structural and anti-disassembly properties of the battery module. Disassembly; a sealing ring is set on the junction surface of the middle barrel, the upper cover and the base, which improves the overall sealing and waterproofness of the battery module, and improves the safety and service life of the battery module; the positioning module can enable the operation terminal to grasp the position of the battery in real time, and the BMS circuit board can realize effective management of the battery, and can send the battery information to the battery operation terminal; insulating sheets are set at the front and rear of the battery module, and the battery module is fixed by the front and rear brackets, and then welded and fixed to the front and rear connecting nickel sheets, which is safer and easy to use, and is convenient for replacement of batteries in anti-disassembly shared electric vehicles and household electric vehicles.

[0069] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the creative concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. An anti-disassembly shared power battery module structure, characterized in that: It comprises a base, a middle barrel located on the base and having a storage cavity inside, an upper cover module covering the upper part of the middle barrel, and a battery module located in the storage cavity and assembled with the base and the upper cover module as a whole, wherein the battery module is fixedly assembled on the base through a snap connection, the upper cover module is fixedly assembled above the battery module through a snap connection and the middle barrel is pressed and held between the base and the upper cover module, the base and the upper cover module are provided with limiting grooves, and the battery module is provided with a locking protrusion that is locked in the limiting groove; A first step support surface is formed on the outer peripheral edge of the base, the middle barrel is seated on the first step support surface, and the lower opening of the middle barrel forms a limit assembly structure on the outer periphery of the first vertical enclosure corresponding to the first step support surface; a second step support surface is formed on the outer periphery of the bottom edge of the upper cover module, the second step support surface is abutted against the top of the middle barrel shell, and the second vertical enclosure corresponding to the second step support surface forms an enclosure wall structure that matches the upper opening of the middle barrel; The battery module includes a battery holder, a plurality of battery cells whose two ends are clamped in the battery holder and whose electrode columns extend out of the battery holder, a plurality of connecting nickel sheets that connect the corresponding battery cells in series or in parallel according to a series-parallel scheme, and an insulating sheet located on the relatively outer side surfaces of the battery holder and covering all the connecting nickel sheets; the battery holder includes a front battery holder and a rear battery holder that are arranged opposite to each other, the front battery holder and the rear battery holder both include a holder body, a plurality of accommodating slots opened on the holder body, the accommodating slot openings in the front battery holder are arranged opposite to the accommodating slot openings in the rear battery holder, and the two ends of the battery cells are clamped in the accommodating slots; the holder body includes a vertical panel, and a edging formed by extending vertically and horizontally from the outer edge of the vertical panel; The base is provided with a plurality of first buckles extending vertically upward, the bottom of the upper cover module is provided with a plurality of second buckles extending downward, the lower part of the vertical panel is provided with a plurality of first bayonet holes for engaging with the first buckles; the upper part of the vertical panel is provided with a plurality of second bayonet holes for engaging with the second buckles; a plurality of first limiting grooves are provided in the base, the lower surface of the upper cover module extends downward to form a second limiting groove, the bottom of the bracket body extends vertically downward to form a first locking protrusion that is engaged with the first limiting groove, and the top of the bracket body extends vertically upward to form a second locking protrusion that is engaged with the second limiting groove; the outer peripheral surface of the upper cover module is provided with There are a number of vertically distributed undercut structures and positioning slots; a top outer cover is assembled on the upper cover module, and the top outer cover has an edge shell covering the outer peripheral surface of the upper cover module and an upper cover plate covering the upper surface of the upper cover module; the inner wall surface of the edge shell is provided with a third buckle matched with the undercut structure, and a positioning insert inserted into the positioning slot and positioned with the positioning slot; an avoidance notch for exposing the set area of ​​the upper cover module is provided on the upper cover plate; a first sealing ring for sealing the connection interface between the base and the middle barrel is provided on the first step support surface; a second sealing ring for sealing the connection interface between the middle barrel and the upper cover module is provided on the second step support surface.

2. The anti-disassembly shared power battery module structure according to claim 1, characterized in that: At least one pair of corner areas of the base is provided with a first mounting hole, and the lower part of the shell of the middle barrel is provided with a first threaded hole corresponding to the first mounting hole, and the base and the middle barrel are fixedly connected by a plurality of first screws passing through the first mounting holes from the bottom and screwing into the first threaded holes; At least one pair of corner areas of the upper cover module is provided with a second mounting hole, and the top of the middle barrel shell is provided with a second threaded hole corresponding to the second mounting hole one by one, and the upper cover module and the middle barrel are fixedly connected by a plurality of second screws passing through the second mounting holes from the top and being screwed into the second threaded holes.

3. The anti-disassembly shared power battery module structure according to claim 1, characterized in that: The accommodating hole groove is formed by horizontally extending from the surface of the vertical panel, and an anti-rotation avoidance opening corresponding to the accommodating hole groove is opened on the surface of the vertical panel; the anti-rotation avoidance opening includes a horizontally distributed waist-shaped hole that is shaped like the electrode column, and an avoidance opening distributed vertically downward from the middle of the waist-shaped hole.

4. The anti-disassembly shared power battery module structure according to claim 1, characterized in that: The vertical panel is provided with a boss protruding outward horizontally, and at least two pairs of the bosses are respectively arranged at the upper part and the lower part of the vertical panel, and the insulating paper is attached to the inner wall surface of the middle barrel.

5. The anti-disassembly shared power battery module structure according to claim 1, characterized in that: A battery management system circuit board unit and a charging connector electrically connected to the battery management system circuit board and used for charging connection are fixedly arranged in the upper cover module; the battery management system circuit board unit includes a single-chip microcomputer module, a BMS circuit board electrically connected to the single-chip microcomputer module, a communication module, a GPS module, a power detection module and an intelligent circuit protection module; the BMS circuit board, the communication module and the GPS module are electrically connected; A charge and discharge connector electrically connected to the battery management system circuit board is provided at the bottom of the base; the battery module includes a collection line electrically connected to the connecting nickel sheet at one end and electrically connected to the battery management system circuit board at the other end.

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