CN115884515B

CN115884515B - Multi-module assembled lithium battery protection board

Info

Publication number: CN115884515B
Application number: CN202310146556.0A
Authority: CN
Inventors: 黄文海
Original assignee: Shenzhen Yuesong Technology Co ltd
Current assignee: Shenzhen Yuesong Technology Co ltd
Priority date: 2023-02-22
Filing date: 2023-02-22
Publication date: 2023-05-05
Anticipated expiration: 2043-02-22
Also published as: CN115884515A

Abstract

The application relates to the technical field of lithium battery protection boards, in particular to a multi-module assembled lithium battery protection board, which comprises a protection board body, wherein the protection board body is installed on a shell frame for clamping and fixing the protection board body, the shell frame clamps the protection board body through a clamping device, one end of the shell frame is provided with an adapter connected with the protection board body, and the adapter is connected with a lithium battery through a data wire and used for monitoring the lithium battery; the detachable electronic element module is arranged on the protective plate body through the assembler; according to the invention, the plurality of electronic element modules are formed by the plurality of electronic elements so as to be detachably arranged on the protective plate body, so that the electronic element modules are convenient to be detached easily during later maintenance and replacement, and meanwhile, the electrical connection between the electronic element modules and the protective plate body is required to be ensured, and the problem of poor contact is prevented.

Description

Multi-module assembled lithium battery protection board

Technical Field

The application relates to the technical field of lithium battery protection plates, in particular to a multi-module assembled lithium battery protection plate.

Background

The lithium battery core and the protective plate are mainly composed of a positive plate, a diaphragm, a negative plate and electrolyte; winding or laminating a positive plate, a diaphragm and a negative plate, packaging, pouring electrolyte, and packaging to obtain a battery cell; the lithium battery protection plate is used for protecting the battery from over-discharge, over-charge and over-current, and also is used for protecting output short circuit.

At present, the lithium battery protection plate is formed by welding electronic elements on the protection plate, and when the lithium battery protection plate is maintained and replaced in the later period, the difficulty of disassembling the electronic elements is high, such as an assembled lithium battery protection plate with a publication number of CN113727522B, and the assembled lithium battery protection plate relates to the technical field of lithium batteries. The electronic component comprises a protective plate body, wherein a plurality of detachable electronic components are assembled at the upper end of the protective plate body, four component conducting rods are arranged at the lower end of the electronic components, a plurality of groups of protective plate terminals are arranged at the upper end of the protective plate body, each group of protective plate terminals corresponds to the electronic components one by one, the number of each group of protective plate terminals is four, and the component conducting rods are electrically connected with the protective plate terminals. According to the invention, through the modularized design of the electronic element, the electronic element can be simply installed and detached according to the requirement of a user, the electronic element can be replaced according to the requirement of the user, great convenience is brought to the maintenance and the use of the user, and the circuit of the lithium battery can be effectively isolated when the overload or short circuit phenomenon occurs in the lithium battery through the arrangement of the data line connector, so that the safety of the lithium battery is greatly improved.

The above-mentioned prior art is through modularization with the electronic component and with its demountable installation on the lithium battery protection board, makes things convenient for the later stage to change, but the lithium battery has vibrations, rocks scheduling problem when in actual use, appears the electronic component modularization easily and contacts bad problem with the lithium battery protection board to lead to the lithium battery protection board not fine protection battery to put excessively, overcharge excessively.

Based on the above, the invention also provides a lithium battery protection board of the electronic element module, so as to solve the problem of poor contact between the electronic element module and the lithium battery protection board in the actual use process.

Disclosure of Invention

In order to solve the technical problems, the application provides a multi-module assembled lithium battery protection board, which adopts the following technical scheme:

the multi-module assembled lithium battery protection board comprises a protection board body, wherein the protection board body is arranged on a shell frame for clamping and fixing the protection board body, the shell frame clamps the protection board body through a clamping device, one end of the shell frame is provided with an adapter connected with the protection board body, and the adapter is connected with a lithium battery through a data wire and used for monitoring the lithium battery; the detachable electronic element module is arranged on the protective plate body through the assembler;

the shell frame is of a shell structure with an opening at the upper end, a plurality of clamping devices are arranged at the corners of the shell frame, each clamping device comprises a master control box and two clamping boxes connected to the master control box, the master control boxes are arranged on the outer walls of the corners of the shell frame, the two clamping boxes are arranged on the shell frame, and the two clamping boxes are distributed at 90 degrees;

the clamping box is internally provided with a clamping piece used for clamping the protection board body, and the master control box is internally provided with a master control used for controlling the two clamping pieces to clamp the protection board body.

Preferably, the clamping piece comprises a type clamping plate, a clamping opening is formed in the side wall of the shell frame, corresponding to the clamping box, a shell structure is arranged on one side, facing the clamping opening, of the clamping box, the type clamping plate is arranged at the position, facing the clamping opening, of the clamping box, the opening of the type clamping plate faces one side, facing horizontally away from the clamping opening, of the clamping box, two hinge plates are hinged between the inner side wall of the clamping box and the type clamping plate, a linkage plate for controlling the two hinge plates to synchronously rotate is hinged between the two hinge plates, a reset spring for controlling the type clamping plate to move towards the clamping box is connected between the hinge plates and the inner side wall of the clamping box, a control rope is connected to the hinge plates close to one end of the master control box, and the other end of the control rope penetrates through a through hole formed in the side wall, facing the master control box, of the clamping rope is connected with a master control piece;

and elastic clamping plates which deform towards the middle part of the type clamping plate are arranged on opposite sides of the two horizontal sections of the type clamping plate.

Preferably, the total control comprises a total control shaft which is rotatably arranged in a total control box and is vertically arranged, two winding discs are arranged on the total control shaft, control ropes in two clamping boxes are respectively wound on the two winding discs, and through holes which are convenient for the control ropes to move are formed in the total control box; the upper end of the main control shaft is provided with a square hole along the axial direction of the main control shaft, a square strip is slidably arranged in the square hole, one end of the square strip, deviating from the main control shaft, is connected with a main control bolt, and the main control bolt penetrates through the main control box and is in threaded connection with the main control box.

Preferably, the assembler comprises a static guide piece arranged on the protective plate body and a movable guide piece arranged on the electronic component module, and the movable guide piece and the static guide piece are in plug-in fit;

the static guide piece comprises a static guide base, the static guide base is arranged on the protection plate body, a static guide socket is arranged in the middle of the static guide base, and a static guide insertion ring is arranged on the outer side wall of the static guide socket;

the movable guide piece comprises a movable guide base arranged on the electronic element module, a movable guide insert block which is in plug-in fit with the static guide socket is arranged in the middle of the movable guide base, a movable guide insert ring which is coaxial with the movable guide insert block is rotatably arranged on the movable guide base, and the movable guide insert ring and the static guide insert ring are connected through a plug-in mechanism.

Preferably, the plug-in mechanism comprises a spiral groove formed in the outer side wall of the static guide plug-in ring, an inlet groove penetrating through the top of the static guide plug-in ring is formed in the upper end of the spiral groove, and a vertical upward limiting groove is formed in the lower end of the spiral groove; the movable guide insert ring is provided with an insert seat corresponding to the spiral groove, a strip-shaped hole penetrating through the side wall of the movable guide insert ring is formed in one side of the insert seat facing the movable guide insert ring, an insert block is slidably arranged in the strip-shaped hole, one end, deviating from the insert seat, of the insert block is provided with a limiting rod, and an insert spring is connected between the insert block and the bottom of the strip-shaped hole.

Preferably, the control hole penetrating into the strip-shaped hole is formed in the outer side wall of the plug-in seat, a lower pressing plate is arranged in the control hole, two sides of one end of the lower pressing plate located in the control hole are rotatably installed in the control hole through a rotating rod, the other end of the lower pressing plate is arranged at the upper end of the plug-in block, and an inserting hole is formed in one end, facing the outer side of the plug-in seat, of the lower pressing plate.

Preferably, the upper end of the static guide socket is provided with a hexagonal via hole, and the outer side of the movable guide plug is of an outer hexagonal structure which is in plug-in fit with the via hole; a conducting strip with a regular hexagon cross section is arranged in the conducting hole, the conducting strip is electrically connected with the protective plate body, and an elastic static conducting strip is circumferentially connected with the outer side wall of the top of the conducting strip; the bottom of the movable guide insert block is provided with a movable guide hole, a movable guide ring electrically connected with the electronic element module is connected in the movable guide hole, and a plurality of elastic movable guide strips which are in one-to-one correspondence with the elastic static guide strips are uniformly arranged on the circumference of the inner side wall of the bottom of the movable guide ring.

Preferably, the adapter comprises an adapter frame of a loop-shaped structure arranged on the side wall of the shell frame, the upper end of the adapter frame is detachably mounted, a butt joint hole penetrating through the shell frame is formed in one end of the adapter frame, a loop-shaped adapter seat is arranged in the adapter frame, the loop-shaped adapter seat is internally provided with a loop-shaped butt joint frame in a sliding manner, the side wall of the protection plate body is provided with a butt joint head which is electrically connected with the protection plate body just right to the loop-shaped butt joint frame, the butt joint head is electrically connected with the loop-shaped butt joint frame, and one end of the loop-shaped adapter seat, which is away from the protection plate body, is electrically connected with a butt joint head which is connected with a data wire.

Preferably, the contact grooves are formed in the two side walls of the back-shaped adapter seat, the contact pieces electrically connected with the adapter are arranged in the contact grooves, one ends, deviating from the shell frame, of the contact pieces are rotationally connected in the contact grooves, pushing springs are connected between the contact pieces and the contact grooves, and the contact heads electrically connected with the back-shaped butt-joint frame are arranged on the outer side walls of the back-shaped butt-joint frame and are in abutting fit with the contact pieces.

Preferably, an auxiliary frame is mounted at the top of the rotary adapter, the bottom in the auxiliary frame penetrates through the top of the rotary adapter in a sliding manner, an auxiliary plate is arranged in the auxiliary frame in a sliding manner, an auxiliary spring is connected between the auxiliary plate and the top in the auxiliary frame, and electromagnetic sheets with opposite magnetism are respectively mounted on the opposite sides of the auxiliary plate and the top in the auxiliary frame; the top of returning type butt joint frame just is provided with the joining in marriage the board to auxiliary plate department, be provided with the spacing tooth of a plurality of inclined planes towards shell frame one side on the joining in marriage the board, auxiliary plate bottom has been seted up a plurality of inclined planes and has been deviate from shell frame one side and with spacing tooth interference fit's draw-in groove.

The utility model discloses a power-off spring, including the back type butt joint frame, the back type butt joint frame top is connected with the back type butt joint frame top.

In summary, the present application includes at least one of the following beneficial technical effects:

1. according to the invention, the plurality of electronic element modules are formed by the plurality of electronic elements so as to be detachably arranged on the protective plate body, so that the electronic element modules are convenient to be detached easily during later maintenance and replacement, and meanwhile, the electrical connection between the electronic element modules and the protective plate body is required to be ensured, and the problem of poor contact is prevented.

2. According to the invention, the electric connection between the protective plate body and the lithium battery is realized through the adapter and by utilizing the data wire, so that the lithium battery can be monitored, and the electric connection between the protective plate body and the lithium battery can be disconnected in time when the lithium battery fails.

3. According to the invention, the four corners of the protection board body in the shell frame are clamped and fixed through the four clamping devices, so that the protection board body is stably arranged in the shell frame, wherein the type clamping plate clamps the side edge of the protection board body through the two elastic clamping plates, and the protection board body is effectively prevented from shaking up and down in the type clamping plate.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a schematic view of the structure between the clamp, the protective plate body and the housing frame of the present invention.

Fig. 3 is an enlarged view of a portion of fig. 2 a of the present invention.

Fig. 4 is a schematic view of the structure of the clamp of the present invention.

Fig. 5 is a schematic structural view of the static guide of the present invention.

Fig. 6 is a schematic structural view of the moving guide of the present invention.

Fig. 7 is a schematic view of the structure between the static guide and the dynamic guide of the present invention.

Fig. 8 is an enlarged view of a portion of the invention at B of fig. 7.

Fig. 9 is an enlarged view of a portion of fig. 7 at C in accordance with the present invention.

Fig. 10 is a schematic view of the structure of the adapter of the present invention.

Fig. 11 is a partial enlarged view of fig. 10 at D according to the present invention.

Fig. 12 is an enlarged view of a portion of fig. 10 at E in accordance with the present invention.

Reference numerals illustrate: 1. a protective plate body; 2. a housing frame; 3. a clamp; 4. an adapter; 5. a data wire; 6. an assembler; 7. an electronic component module; 31. a master control box; 32. a clamping box; 33. a clamping member; 34. a total control; 331. clamping plates; 332. a clamping opening; 333. a hinged plate; 334. a linkage plate; 335. a return spring; 336. a control rope; 337. a through hole; 338. an elastic clamping plate; 341. a main control shaft; 342. a winding disc; 343. a through hole; 344. square holes; 345. square strips; 346. a master control bolt; 61. a static guide; 62. a movable guide; 63. a static guide base; 64. a static guide socket; 65. static guide insert ring; 66. a movable guide base; 67. a movable guide insert block; 68. a movable guide ring; 69. a plug-in mechanism; 691. a spiral groove; 692. an inlet slot; 693. a limit groove; 694. a socket; 695. a bar-shaped hole; 696. a plug block; 697. a limit rod; 698. a plug spring; 699. a control hole; 6991. a lower pressing plate; 6992. a rotating lever; 6993. a jack; 641. a via hole; 642. a conducting bar; 643. elastic static guide bars; 671. a movable guide hole; 672. a movable guide ring; 673. an elastic movable guide bar; 41. a transfer frame; 42. a butt joint hole; 43. a rotary adapter; 44. a loop-shaped butt joint frame; 45. butt joint; 46. an adapter; 431. a contact groove; 432. a contact piece; 433. a pushing spring; 441. a contact; 47. an auxiliary frame; 471. an auxiliary plate; 472. an auxiliary spring; 473. an electro-magnetic sheet; 474. matching plates; 475. limit teeth; 476. a clamping groove; 48. a slip groove; 481. a sliding block; 482. a power-off spring; 483. a control block; 484. and a guiding chute.

Detailed Description

The present application is described in further detail below in conjunction with fig. 1-12.

Embodiment one:

referring to fig. 1, an embodiment of the application discloses a multi-module assembled lithium battery protection board, which comprises a protection board body 1, wherein the protection board body 1 is installed on a housing frame 2 for clamping and fixing the protection board body 1, the housing frame 2 clamps the protection board body 1 through a clamp 3, one end of the housing frame 2 is provided with an adapter 4 connected with the protection board body 1, and the adapter 4 is connected with a lithium battery through a data wire 5 for monitoring the lithium battery; a detachable electronic element module 7 is arranged on the protective plate body 1 through an assembler 6;

the electronic components are formed into the plurality of electronic component modules 7 so as to be detachably arranged on the protective plate body 1, so that the electronic component modules are convenient to be detached easily during later maintenance and replacement, and meanwhile, the electrical connection between the electronic component modules 7 and the protective plate body 1 is required to be ensured, and the problem of poor contact is prevented; meanwhile, the invention realizes the electrical connection between the protection board body 1 and the lithium battery through the adapter 4 and by utilizing the data wire 5, and can be used for monitoring the lithium battery, and the adapter 4 can timely disconnect the electrical connection between the protection board body 1 and the lithium battery when the lithium battery breaks down.

The shell frame 2 is of a shell structure with an opening at the upper end, a plurality of clamping devices 3 are arranged at the corners of the shell frame 2, each clamping device 3 comprises a master control box 31 and two clamping boxes 32 connected to the master control box 31, the master control box 31 is arranged on the outer wall of the corner of the shell frame 2, the two clamping boxes 32 are arranged on the shell frame 2, and the two clamping boxes 32 are distributed at 90 degrees; four corners of the protection plate body 1 mounted in the housing frame 2 can be clamped by the four clampers 3, and simultaneously, the side edges of the two sides of the corner of the protection plate body 1 are clamped by the two clamping boxes 32, so that the clamping devices 3 can be ensured to stably clamp the protection plate body 1.

The clamping box 32 is internally provided with a clamping piece 33 for clamping the protection board body 1, and the master control box 31 is internally provided with a master control 34 for controlling the two clamping pieces 33 to clamp the protection board body 1.

Referring to fig. 2-4, based on the above, the clamping member 33 of the present invention includes a type clamping plate 331, a clamping opening 332 is formed at a position of a side wall of the housing frame 2 corresponding to the clamping opening 32, the clamping opening 332 is formed by an open shell structure on a side of the clamping opening 32, the type clamping plate 331 is disposed at a position opposite to the clamping opening 332, the opening of the type clamping plate 331 faces a side horizontally away from the clamping opening 332, two hinge plates 333 are hinged to the inner side wall of the clamping opening 32 and the type clamping plate 331, a linkage plate 334 for controlling the two hinge plates 333 to rotate synchronously is hinged between the two hinge plates 333, a return spring 335 for controlling the type clamping plate 331 to move towards the clamping opening 32 is connected between the hinge plates 333 and the inner side wall of the clamping opening 32, a control rope 336 is connected to the hinge plate 333 near one end of the main control box 31, and the other end of the control rope 336 slides through a through hole 337 formed on the side wall of the clamping box 32 facing the main control box 31 and is connected with the main control 34.

The control rope 336 is pulled to move towards the total control 34 through the total control 34, so that the two hinge plates 333 move towards the protection plate body 1 under the connection of the linkage plate 334 until the side edge of the protection plate body 1 is clamped on the clamping plate 331, the clamping and positioning of the protection plate body 1 are realized, and the return spring 335 is in a stretching state; when the protection board body 1 needs to be taken out, the master control 34 runs reversely so that the control rope 336 does not pull the hinge plates 333 any more, and then drives the two hinge plates 333 to rotate towards the clamping box 32 under the action of the return spring 335, so as to realize the movement of the type clamping plate 331 towards the clamping box 32 until the side edge of the protection board body 1 is separated from the type clamping plate 331.

In order to ensure that the type clamping plate 331 firmly clamps the protection plate body 1, two opposite sides of the horizontal sections of the type clamping plate 331 are provided with elastic clamping plates 338 which deform towards the middle of the type clamping plate 331; so that the side edge of the protection plate body 1 can be clamped and fixed by the two elastic clamping plates 338, and the problem that the protection plate body 1 shakes up and down in the clamping plate 331 is avoided.

Regarding the above-mentioned total control 34, the total control 34 includes a total control shaft 341 rotatably installed in the total control box 31 and vertically arranged, two winding discs 342 are installed on the total control shaft 341, the control ropes 336 in the two clamping boxes 32 are respectively wound on the two winding discs 342, and a through hole 343 for facilitating movement of the control ropes 336 is formed in the total control box 31; the upper end of the main control shaft 341 is provided with a square hole 344 along the axial direction, a square strip 345 is slidably arranged in the square hole 344, one end, deviating from the main control shaft 341, of the square strip 345 is connected with a main control bolt 346, and the main control bolt 346 penetrates through the main control box 31 and is in threaded connection with the main control box 31.

In a specific implementation process, when the clamping plate 331 is driven to clamp the protection plate body 1, the square bar 345 is driven to rotate synchronously through the square hole 344 by driving the master control bolt 346 through a wrench, and then the two winding disks 342 are driven to rotate, so that the control rope 336 starts to wind on the winding disks 342, and the control rope 336 pulls the hinge plate 333 to rotate to realize that the clamping plate 331 clamps the protection plate body 1; when the protection plate body 1 needs to be taken out, the master control bolt 346 is screwed again to rotate reversely by a wrench, and then the master control shaft 341 drives the winding disc 342 to rotate reversely, so that the control rope 336 is loosened from the winding disc 342, and the hinge plate 333 is driven to drive the type clamping plate 331 to move towards the clamping box 32 by the pulling of the return spring 335, so that the protection plate body 1 is separated from the type clamping plate 331.

Referring back to fig. 1, when a plurality of electronic component modules 7 are mounted on a protection board by the assembler 6, the assembler 6 of the present invention includes a static guide 61 mounted on the protection board body 1 and a movable guide 62 mounted on the electronic component modules 7, and the movable guide 62 and the static guide 61 are in plug-in fit so that the electronic component modules 7 are electrically connected with the protection board body 1.

Referring to fig. 5-7, the static guide member 61 includes a static guide base 63, the static guide base 63 is mounted on the protection plate body 1, a static guide socket 64 is mounted in the middle of the static guide base 63, and a static guide insertion ring 65 is disposed on the outer side wall of the static guide socket 64;

the movable guide 62 comprises a movable guide base 66 arranged on the electronic element module 7, a movable guide insert block 67 which is in plug-in fit with the static guide socket 64 is arranged in the middle of the movable guide base 66, a movable guide insert ring 68 which is coaxial with the movable guide insert block 67 is rotatably arranged on the movable guide base 66, and the movable guide insert ring 68 and the static guide insert ring 65 are connected through a plug-in mechanism 69.

In a specific implementation process, the movable guide insert 67 is inserted into the static guide socket 64, and meanwhile, the movable guide insert ring 68 is ensured to be sleeved on the outer side of the static guide insert ring 65, so that the movable guide insert is fixed on the static guide insert ring 65 by the inserting mechanism 69, and the electronic element module 7 is electrically connected with the protection board body 1 through the cooperation between the movable guide insert 67 and the static guide socket 64.

Referring to fig. 7-8, the plugging mechanism 69 includes a spiral groove 691 formed on the outer side wall of the static guide plugging ring 65, an inlet groove 692 penetrating the top of the static guide plugging ring 65 is formed at the upper end of the spiral groove 691, and a vertical upward limit groove 693 is formed at the lower end of the spiral groove 691; the guide insert ring 68 is provided with an insert seat 694 corresponding to the spiral groove 691, one side of the insert seat 694 facing the inside of the guide insert ring 68 is provided with a strip-shaped hole 695 penetrating through the side wall of the guide insert ring 68, an insert block 696 is slidably arranged in the strip-shaped hole 695, one end of the insert block 696, which is away from the insert seat 694, is provided with a limit rod 697, and an insert spring 698 is connected between the insert block 696 and the bottom of the strip-shaped hole 695;

firstly, the movable guide insert ring 68 is sleeved on the outer side of the static guide insert ring 65, the limiting rod 697 is aligned to the inlet groove 692, then the movable guide insert ring 68 is rotated to enable the limiting rod 697 to slide along the spiral groove 691 to realize downward movement of the movable guide insert ring 68 until the limiting rod 697 moves to the bottom of the spiral groove 691, at the moment, the limiting rod 697 is driven to slide upwards into the limiting groove 693 under the action of the inserting spring 698, and then the movable guide insert ring 68 is inserted and fixed in the static guide insert ring 65.

The control hole 699 that runs through to in the bar hole 695 has been seted up on the socket 694 lateral wall, is provided with holding down plate 6991 in the control hole 699, and the holding down plate 6991 is located the both sides of control hole 699 one end and rotates through dwang 6992 and install in control hole 699, and the jack 6993 has been seted up towards the one end in the socket 694 outside to holding down plate 6991 other end is taken in the upper end of grafting piece 696.

When the electronic component module 7 needs to be disassembled, the existing cutting is inserted into the insertion hole 6993, then the insertion hole 6993 is rotated upwards to drive the lower pressing plate 6991 to press the insertion block 696 downwards until the limiting rod 697 exits from the limiting groove 693, at this time, the guide insertion ring 68 is rotated reversely, so that the limiting rod 697 moves towards the inlet groove 692 along the spiral groove 691 until the limiting rod 697 moves out of the inlet groove 692, and at this time, the disassembly of the electronic component module 7 is realized.

Referring to fig. 5-7, an inner hexagonal via 641 is formed at the upper end of the stationary socket 64, and an outer hexagonal structure is formed at the outer side of the movable plug 67 for mating with the via 641.

Referring to fig. 7-9, a conducting bar 642 with a regular hexagon cross section is arranged in the conducting hole 641, the conducting bar 642 is electrically connected with the protection board body 1, and an elastic static conducting bar 643 is circumferentially connected with the outer side wall of the top of the conducting bar 642; the bottom of the movable guide block 67 is provided with a movable guide hole 671, the movable guide hole 671 is connected with a movable guide ring 672 electrically connected with the electronic element module 7, and a plurality of elastic movable guide strips 673 which are in one-to-one correspondence with the elastic static guide strips 643 are uniformly arranged on the circumference of the inner side wall of the bottom of the movable guide ring 672.

When the plug 696 is plugged into the via hole 641 of the static socket 64, the conductive bar 642 drives the elastic conductive bar to be inserted into the movable conductive ring 672, so that the elastic static conductive bar 643 contacts with the elastic movable conductive bar 673 as the movable conductive block 67 continuously moves downward, and the elastic static conductive bar 643 and the elastic movable conductive bar 673 are deformed to ensure that the elastic static conductive bar 643 always contacts with the elastic movable conductive bar 673 and that the conductive bar 642 always electrically contacts with the movable conductive ring 672, so as to prevent the poor contact between the electronic component module 7 and the protective plate body 1.

Embodiment two:

on the basis of the first embodiment, the invention realizes the connection between the protection board body 1 and the lithium battery through the adapter 4; specifically, referring to fig. 10-12, the adaptor 4 includes a adaptor frame 41 of a loop-shaped structure mounted on a side wall of the housing frame 2, a docking hole 42 penetrating through the housing frame 2 is formed at an end of the adaptor frame 41 facing the housing frame 2, a loop-shaped adaptor seat 43 is disposed in the adaptor frame 41, a loop-shaped docking frame 44 is slidably mounted in the loop-shaped adaptor seat 43, a docking head 45 electrically connected with the protective plate body 1 is disposed on a side wall of the protective plate body 1 and opposite to the loop-shaped docking frame 44, the docking head 45 is electrically connected with the loop-shaped docking frame 44, and an adaptor 46 electrically connected with the data wire 5 is disposed at an end of the loop-shaped adaptor seat 43 facing away from the protective plate body 1.

In a specific implementation process, firstly, the protection board body 1 is placed in the shell frame 2, then the protection board body 1 is pushed to enable the butt joint 45 to pass through the butt joint hole 42 and be placed in the square adaptor 43, then the square butt joint frame 44 is pushed to enable the butt joint 45 to be in plug-in fit with the square butt joint frame 44, and the electric connection of the butt joint 45 and the square butt joint frame 44 is achieved, at the moment, the electric connection of the adaptor 46 and the lithium battery is achieved through the data wire 5, and then the electric connection with the protection board body 1 is achieved through the square butt joint frame 44 and the butt joint 45, so that the lithium battery is monitored in real time by the protection board body 1, when the lithium battery breaks down, the square butt joint frame 44 is separated from the butt joint 45 in electric contact, so that the protection board body 1 is protected, and meanwhile, the protection board body 1 transmits information.

The two side walls of the square adapter 43 are provided with contact grooves 431, a contact piece 432 electrically connected with the adapter 46 is arranged in the contact grooves 431, one end, deviating from the shell frame 2, of the contact piece 432 is rotatably connected in the contact grooves 431, a pushing spring 433 is connected between the contact piece 432 and the contact grooves 431, a contact head 441 electrically connected with the square adapter 44 is arranged on the outer side wall of the square adapter 44, and the contact head 441 is in abutting fit with the contact piece 432; by driving the contact 432 to always abut against the contact 441 under the action of the pushing spring 433, electrical connection between the contact 432 and the contact 441 is ensured.

The top of the back-type adapter seat 43 is provided with an auxiliary frame 47, the bottom in the auxiliary frame 47 penetrates through the top of the back-type adapter seat 43 in a sliding manner, an auxiliary plate 471 is arranged in the auxiliary frame 47 in a sliding manner, an auxiliary spring 472 is connected between the auxiliary plate 471 and the top in the auxiliary frame 47, and electromagnetic sheets 473 with opposite magnetism are respectively arranged on the opposite sides of the auxiliary plate 471 and the top in the auxiliary frame 47; the top of the square butt joint frame 44 and the position facing the auxiliary plate 471 are provided with a matching plate 474, the matching plate 474 is provided with a plurality of limiting teeth 475 with inclined surfaces facing one side of the shell frame 2, and the bottom of the auxiliary plate 471 is provided with a plurality of clamping grooves 476 with inclined surfaces facing away from one side of the shell frame 2 and in abutting fit with the limiting teeth 475.

The sliding groove 48 is formed in the inner side wall of the rotary type adapter seat 43, the sliding block 481 which is arranged in the sliding groove 48 in a sliding manner is connected to the top of the rotary type butt joint frame 44, the power-off spring 482 is connected between the sliding block 481 and the sliding groove 48, the control block 483 is connected to the top of the sliding block 481, and the control block 483 is arranged in the guide sliding groove 484 formed in the top of the rotary type adapter frame 41 in a sliding manner.

In the implementation process, the control block 483 pushes the sliding block 481 to move, so that the docking frame 44 moves towards the docking head 45 until the docking head 45 is inserted into the docking frame 44, and in this process, the auxiliary plate 471 is driven to reciprocate up and down due to the interference fit between the limiting teeth 475 and the clamping grooves 476, and when docking is completed, the clamping grooves 476 limit the limiting teeth 475 to move, so as to limit the movement of the docking frame 44; when the lithium battery fails, the electromagnetic sheet 473 is energized, and then the auxiliary plate 471 is pulled to move upwards, so that the clamping groove 476 is separated from the limiting teeth 475, and the return-type docking frame 44 is driven to return to the initial position under the action of the power-off spring 482, so that the docking head 45 is electrically disconnected from the return-type docking frame 44.

The embodiments of the present invention are all preferred embodiments of the present invention, and are not intended to limit the scope of the present invention in this way, therefore: all equivalent changes in structure, shape and principle of the invention should be covered in the scope of protection of the invention.

Claims

1. The utility model provides a multi-module assembled lithium battery protection board, includes protection board body (1), its characterized in that: the lithium battery monitoring device comprises a protection board body (1), a shell frame (2) used for clamping and fixing the protection board body (1), wherein the shell frame (2) clamps the protection board body (1) through a clamp (3), one end of the shell frame (2) is provided with an adapter (4) connected with the protection board body (1), and the adapter (4) is connected with a lithium battery through a data wire (5) and used for monitoring the lithium battery; a detachable electronic element module (7) is arranged on the protective plate body (1) through an assembler (6); the shell frame (2) is of a shell structure with an opening at the upper end, a plurality of clamping devices (3) are arranged at the corners of the shell frame (2), each clamping device (3) comprises a master control box (31) and two clamping boxes (32) connected to the master control box (31), the master control box (31) is arranged on the outer wall of the corner of the shell frame (2), the two clamping boxes (32) are arranged on the shell frame (2), and the two clamping boxes (32) are distributed at 90 degrees; a clamping piece (33) for clamping the protective plate body (1) is arranged in the clamping box (32), and a total control piece (34) for controlling the two clamping pieces (33) to clamp the protective plate body (1) is arranged in the total control box (31);

the assembler (6) comprises a static guide piece (61) arranged on the protection plate body (1) and a movable guide piece (62) arranged on the electronic element module (7), and the movable guide piece (62) is in plug-in fit with the static guide piece (61); the static guide piece (61) comprises a static guide base (63), the static guide base (63) is arranged on the protection plate body (1), a static guide socket (64) is arranged in the middle of the static guide base (63), and a static guide insertion ring (65) is arranged on the outer side wall of the static guide socket (64); the movable guide piece (62) comprises a movable guide base (66) arranged on the electronic element module (7), a movable guide insert block (67) which is in plug-in fit with the static guide socket (64) is arranged in the middle of the movable guide base (66), a movable guide insert ring (68) coaxial with the movable guide insert block (67) is rotatably arranged on the movable guide base (66), and the movable guide insert ring (68) and the static guide insert ring (65) are connected through a plug-in mechanism (69);

the plug-in mechanism (69) comprises a spiral groove (691) formed in the outer side wall of the static guide plug-in ring (65), an inlet groove (692) penetrating through the top of the static guide plug-in ring (65) is formed in the upper end of the spiral groove (691), and a vertical upward limit groove (693) is formed in the lower end of the spiral groove (691); the movable guide insert ring (68) is provided with an insert seat (694) corresponding to the spiral groove (691), one side of the insert seat (694) facing the inside of the movable guide insert ring (68) is provided with a strip-shaped hole (695) penetrating through the side wall of the movable guide insert ring (68), an insert block (696) is arranged in the strip-shaped hole (695) in a sliding manner, one end of the insert block (696) deviating from the insert seat (694) is provided with a limit rod (697), and an insert spring (698) is connected between the insert block (696) and the bottom of the strip-shaped hole (695);

the socket is characterized in that a control hole (699) penetrating into the strip-shaped hole (695) is formed in the outer side wall of the socket (694), a lower pressing plate (6991) is arranged in the control hole (699), two sides of one end of the lower pressing plate (6991) located in the control hole (699) are rotatably installed in the control hole (699) through a rotating rod (6992), the other end of the lower pressing plate (6991) is lapped at the upper end of the socket block (696), and an inserting hole (6993) is formed in one end, facing the outer side of the socket (694), of the lower pressing plate (6991);

the upper end of the static guide socket (64) is provided with a hexagonal inner through hole (641), and the outer side of the movable guide block (67) is of an outer hexagonal structure which is in plug-in fit with the through hole (641); a conducting strip (642) with a regular hexagon cross section is arranged in the conducting hole (641), the conducting strip (642) is electrically connected with the protective plate body (1), and an elastic static conducting strip (643) is circumferentially connected with the outer side wall of the top of the conducting strip (642); the bottom of the movable guide insert block (67) is provided with a movable guide hole (671), the movable guide hole (671) is connected with a movable guide ring (672) electrically connected with the electronic element module (7), and a plurality of elastic movable guide strips (673) which are in one-to-one correspondence with the elastic static guide strips (643) are uniformly arranged on the circumference of the inner side wall of the bottom of the movable guide ring (672).

2. The multi-module assembled lithium battery protection plate of claim 1, wherein: the clamping piece (33) comprises a type clamping plate (331), a clamping opening (332) is formed in the side wall of the shell frame (2) corresponding to the clamping box (32), one side of the clamping box (32) facing the clamping opening (332) is of an open shell structure, the type clamping plate (331) is arranged at the position opposite to the clamping opening (332), the opening of the type clamping plate (331) faces to one side facing horizontally away from the clamping opening (332), two hinge plates (333) are hinged to the inner side wall of the clamping box (32) and the side wall of the type clamping plate (331), a linkage plate (334) for controlling the two hinge plates (333) to rotate synchronously is hinged between the two hinge plates (333), a return spring (335) for controlling the movement of the type clamping plate (331) towards the clamping box (32) is connected between the hinge plates (333) and the inner side wall of the clamping box (32), a control rope (336) is connected to the hinge plate (333) close to one end of the general control box (31), and the other end of the control rope (336) slides to penetrate through the general control box (31) and is connected with the general control piece (34); opposite sides of the two horizontal sections of the type clamping plate (331) are respectively provided with an elastic clamping plate (338) which deforms towards the middle of the type clamping plate (331).

3. The multi-module assembled lithium battery protection plate of claim 2, wherein: the total control (34) comprises a total control shaft (341) which is rotatably arranged in the total control box (31) and is vertically arranged, two winding discs (342) are arranged on the total control shaft (341), control ropes (336) in the two clamping boxes (32) are respectively wound on the two winding discs (342), and through holes (343) which are convenient for the control ropes (336) to move are formed in the total control box (31); the utility model discloses a general accuse axle (341) is connected with general accuse bolt (346), general accuse bolt (346) runs through general accuse case (31) and with general accuse case (31) threaded connection, square hole (344) have been seted up on general accuse axle (341) upper end along its axis direction, the slip in square hole (344) is provided with square strip (345), just the one end that square strip (345) deviate from general accuse axle (341).

4. The multi-module assembled lithium battery protection plate of claim 1, wherein: the adapter (4) is including installing the switching frame (41) of returning the structure at shell frame (2) lateral wall, switching frame (41) upper end is demountable installation, butt joint hole (42) that run through shell frame (2) are seted up towards the one end of shell frame (2) to switching frame (41), be provided with in switching frame (41) and return type adapter (43), just interior sliding mounting has returning type adapter frame (44) in return type adapter (43), the lateral wall of protection shield body (1) just is provided with butt joint (45) with protection shield body (1) electric connection to returning type adapter (44) department, just butt joint (45) and returning type adapter (44) electric connection, the one end electric connection that returns type adapter (43) and deviate from protection shield body (1) has adapter (46) that are connected with data wire (5).

5. The multi-module assembled lithium battery protection plate of claim 4, wherein: contact recess (431) have all been seted up to both sides wall of returning type adapter (43), be provided with in contact recess (431) with adapter (46) electric connection's contact piece (432), just one end that contact piece (432) deviate from shell frame (2) rotates to be connected in contact recess (431), be connected with between contact piece (432) and contact recess (431) pushing spring (433), be provided with on returning type butt joint frame (44) lateral wall with returning type butt joint frame (44) electric connection's contact head (441), just contact head (441) and contact piece (432) interference fit.

6. The multi-module assembled lithium battery protection plate of claim 4, wherein: an auxiliary frame (47) is arranged at the top of the rotary adapter seat (43), the bottom in the auxiliary frame (47) penetrates through the top of the rotary adapter seat (43) in a sliding manner, an auxiliary plate (471) is arranged in the auxiliary frame (47) in a sliding manner, an auxiliary spring (472) is connected between the auxiliary plate (471) and the inner top of the auxiliary frame (47), and electromagnetic sheets (473) with opposite magnetism are respectively arranged at the opposite sides of the auxiliary plate (471) and the inner top of the auxiliary frame (47); a matching plate (474) is arranged at the top of the square butt joint frame (44) and opposite to the auxiliary plate (471), a plurality of limit teeth (475) with inclined surfaces facing one side of the shell frame (2) are arranged on the matching plate (474), and a plurality of clamping grooves (476) with inclined surfaces facing one side of the shell frame (2) and in interference fit with the limit teeth (475) are formed in the bottom of the auxiliary plate (471); the utility model discloses a power-off spring, including back type adaptor (43), back type butt joint frame (44) top is connected with sliding block (481) of sliding setting in sliding groove (48), be connected with outage spring (482) between sliding block (481) and sliding groove (48), sliding block (481) top is connected with control block (483), just control block (483) slide setting in direction spout (484) of seting up at back type adaptor frame (41) top.