阅读说明：本技术 一种老年代步车用的锂电池保护装置 (Lithium battery protection device for scooter for old people ) 是由 刘湘雄 宗谱平 罗贤友 朱耀华 于 2021-07-22 设计创作，主要内容包括：本申请涉及一种老年代步车用的锂电池保护装置,其包括锂电池组和包裹于锂电池组外部的内壳体,锂电池组包括电池保护板和锂电池,锂电池有多个,锂电池组的两端均设置有固定板,固定板远离锂电池组的一侧设置有转接板,转接板与电池保护板电连接,固定板周侧固定安装有抵贴于锂电池的挡板,固定板靠近锂电池的一面固定安装有多个分隔块,分隔块周侧抵贴于锂电池,挡板相对两侧均固定安装有连接带,位于不同挡板的连接带之间安装有卡扣,电池保护板安装有支撑套筒,支撑套筒远离电池保护板一端安装于连接带。本申请具有方便锂电池的散热,从而提高锂电池的使用寿命的效果。(The utility model relates to a lithium battery protection device that old person's car of riding instead of walk used, it includes that lithium cell group and parcel are in the outside interior casing of lithium cell group, lithium cell group is including battery protection shield and lithium cell, the lithium cell has a plurality ofly, the both ends of lithium cell group all are provided with the fixed plate, one side that lithium cell group was kept away from to the fixed plate is provided with the keysets, the keysets is connected with the battery protection shield electricity, fixed plate week side fixed mounting has the baffle of pasting in the lithium cell, the fixed plate is close to the one side fixed mounting of lithium cell and has a plurality of spacer blocks, spacer block week side is pasted in the lithium cell, the equal fixed mounting in both sides of baffle is connected the area, be located and install the buckle between the connected area of different baffles, battery protection shield installs the support sleeve, support sleeve keeps away from battery protection shield one end and installs in the connected area. This application has the heat dissipation that makes things convenient for the lithium cell to improve the life's of lithium cell effect.)

1. The utility model provides a lithium battery protection device that old vehicle of riding instead of walk which characterized in that: including lithium cell group (26) and wrap up in the outside interior casing (27) of lithium cell group (26), lithium cell group (26) is including battery protection board (261) and lithium cell (262), lithium cell (262) have a plurality ofly, the both ends of lithium cell group (26) all are provided with fixed plate (1), one side that lithium cell group (26) were kept away from in fixed plate (1) is provided with keysets (2), lithium cell (262) are connected with keysets (2) electricity, keysets (2) are connected with battery protection board (261) electricity, fixed plate (1) week side fixed mounting has baffle (3) of pasting in lithium cell (262), the one side fixed mounting that fixed plate (1) is close to lithium cell (262) has a plurality of spacer blocks (4), spacer block (4) week side pastes in lithium cell (262), the equal fixed mounting in the relative both sides of baffle (3) has connecting band (5), be located the difference install buckle (6) between connecting band (5) of baffle (3), support sleeve (7) are installed to battery protection board (261), support sleeve (7) are kept away from battery protection board (261) one end and are installed in connecting band (5).

2. The lithium battery protection device for the scooter for the elderly according to claim 1, wherein: still include shell body (28), shell body (28) include top casing (281), dorsal scale (282), first side casing (283) and second side casing (284), top casing (281), dorsal scale (282), first side casing (283) and second side casing (284) enclose to close and form standing groove (29) that supply interior casing (27) to place, interior casing (27) can dismantle with top casing (281) and be connected, top casing (281), dorsal scale (282), first side casing (283) and second side casing (284) are hollow structure, the inside of top casing (281), dorsal scale (282), first side casing (283) and second side casing (284) communicates each other.

3. The lithium battery protection device for the scooter for the elderly as claimed in claim 2, wherein: the placing groove (29) can at least contain two inner shells (27), a battery main board (8) is installed inside the top shell (281), and each battery protection plate (261) is electrically connected with the battery main board (8).

4. The lithium battery protection device for the scooter for the elderly as claimed in claim 3, wherein: interior casing (27) include box (271) and lower box (272), go up box (271) bottom and install inserted block (9), last box (271) top is seted up and is supplied slot (10) that inserted block (9) damping was pegged graft.

5. The lithium battery protection device for the scooter for the elderly as claimed in claim 4, wherein: go up box (271) fixed mounting have slider (11), top casing (281) fixed mounting has slide rail (12) that supplies slider (11) to slide, it is equipped with limiting plate (13) to go up box (271), go up box (271) and offer first recess (14) that supply limiting plate (13) to wear to establish, install first spring (16) between the tank bottom of limiting plate (13) and first recess (14), second recess (15) that supply limiting plate (13) to wear to establish are seted up to top casing (281).

6. The lithium battery protection device for the scooter for the elderly as claimed in claim 5, wherein: battery mainboard (8) fixed mounting has sheetmetal (18), one side fixed mounting that lithium cell group (26) was kept away from in battery protection board (261) has elastic metal clamping piece (19) that are used for centre gripping sheetmetal (18), elastic metal clamping piece (19) are to pasting in interior casing (27) are close to the inner wall of top casing (281) one side, opening (20) that confession sheetmetal (18) were worn to establish are seted up to one side that top casing (281) are close to one side of interior casing (27) and interior casing (27) are close to one side of top casing (281).

7. The lithium battery protection device for the scooter for the elderly as claimed in claim 2, wherein: a plurality of hemispheroids (21) are fixedly installed on one side, far away from the inner shell (27), of the top shell (281), and the hemispheroids (21) are densely distributed on one side, far away from the outer shell (28), of the top shell (281).

8. The lithium battery protection device for the scooter for the elderly as claimed in claim 2, wherein: each the separation block (4) is provided with a first air hole (22), the first air holes (22) penetrate through the separation block (4), the fixing plate (1) and the adapter plate (2), and the inner shell (27) is provided with a plurality of second air holes (23).

9. The lithium battery protection device for the scooter for the elderly as claimed in claim 6, wherein: a plurality of exhaust vents (24) have all been seted up to one side that first side casing (283) are close to interior casing (27) and one side that second side casing (284) are close to interior casing (27), first side casing (283) and second side casing (284) internally mounted have hair-dryer (25).

10. The lithium battery protection device for the scooter for the elderly as claimed in claim 7, wherein: the top shell (281) comprises a groove body (2811) with an opening facing to one side far away from the inner shell (27) and a cover plate (2812) matched with the opening of the groove body (2811), the cover plate (2812) is fixedly provided with a plurality of first sleeves (30), a second spring (17) is arranged inside the first sleeves (30), the groove body (2811) is fixedly provided with a plurality of guide rods penetrating through the first sleeves (30), the groove body (2811) is fixedly provided with a second sleeve (31), the cylinder wall of the second sleeve (31) is provided with sliding openings (35), the sliding openings (35) are arranged along the circumferential direction of the second sleeve (31), the cylinder wall of the second sleeve (31) is further provided with a plurality of bayonets (36) communicated with the sliding openings (35), the bayonets (36) are arranged at intervals along the length direction of the second sleeve (31), and the length of the bayonets (36) is gradually increased from one end of the sliding openings (35) to the other end, dwang (38) are worn to be equipped with in second sleeve (31), the week lateral wall fixed mounting of dwang (38) has fixture block (37) with bayonet socket (36) joint, dwang (38) are rotated and are connected in apron (2812), the fixed cover of dwang (38) is equipped with spacing ring (34) and stopper (33), spacing ring (34) are to pasting and are close to cell body (2811) one side in apron (2812), stopper (33) are to pasting and keep away from cell body (2811) one side in apron (2812), stopper (33) have been seted up and have been rotated mouth (32).

Technical Field

The application relates to the field of battery protection devices, in particular to a lithium battery protection device for an old-aged scooter.

Background

The car of riding instead of walk old age is towards old person's a trip gear, and the car of riding instead of walk old age generally uses the lithium cell as the power.

In the correlation technique, inside lithium cell group put into the casing, the casing was installed inside the appearance chamber that old car of riding instead of walk set up in advance. The lithium battery pack comprises a plurality of battery protection plates and a plurality of lithium batteries. The capacity of the lithium battery pack is increased through parallel connection between each lithium battery, and the voltage of the lithium battery pack is increased through serial connection. And binding all lithium batteries together by using an adhesive tape after each lithium battery is connected. And then the total positive end and the total negative end of the bundled lithium battery are electrically connected with a battery protection plate. The battery protection board is used for overcharge protection, overdischarge protection, overcurrent protection and short circuit protection of the lithium battery.

In view of the above-mentioned related art, the inventor believes that each lithium battery is bound together using an adhesive tape so that each lithium battery is closely attached to each other. And the lithium cell can generate heat at the charging and discharge in-process, hugs closely each other between every lithium cell and can influence the heat dissipation of lithium cell to influence the life of lithium cell.

Disclosure of Invention

In order to make things convenient for the heat dissipation of lithium cell to improve the life of lithium cell, this application provides a lithium cell protection device that old car of riding instead of walk used.

The application provides a pair of lithium battery protection device for old people scooter adopts following technical scheme:

a lithium battery protection device for an elderly scooter comprises a lithium battery pack and an inner shell which is wrapped outside the lithium battery pack, the lithium battery pack comprises a plurality of battery protection plates and a plurality of lithium batteries, the two ends of the lithium battery pack are provided with fixing plates, an adapter plate is arranged on one side of the fixing plate, which is far away from the lithium battery pack, the lithium battery is electrically connected with the adapter plate, the adapter plate is electrically connected with the battery protection plate, the periphery of the fixing plate is fixedly provided with a baffle plate which abuts against the lithium battery, one surface of the fixing plate close to the lithium battery is fixedly provided with a plurality of separating blocks, the peripheral sides of the separating blocks are abutted against the lithium battery, connecting belts are fixedly arranged on two opposite sides of the baffle plate, buckles are arranged between the connecting belts of different baffle plates, the battery protection board is provided with a supporting sleeve, and one end of the supporting sleeve, which is far away from the battery protection board, is arranged on the connecting belt.

Through adopting above-mentioned technical scheme, the both ends of every lithium cell all paste in the fixed plate, separate the piece and separate every lithium cell to produce the gap between two adjacent lithium cells, this is favorable to the heat dissipation of lithium cell, thereby improves the life of lithium cell. The baffle plate surrounds each lithium battery separated by the separating block, so that the lithium batteries are bound and fixed. The two fixation plates are then connected together using a snap.

The battery protection board is fixedly installed on the supporting sleeve through threaded connection, and the supporting sleeve separates the battery protection board from the lithium battery, so that a gap is formed between the battery protection board and the lithium battery. This is beneficial to the heat dissipation of the lithium battery, thereby improving the service life of the lithium battery. The positive pole end and the negative pole end of lithium cell are connected with the keysets electricity respectively, and the keysets is connected with the battery protection shield.

Optionally, still include the shell body, the shell body includes top casing, back of the body casing, first side casing and second side casing, top casing, back of the body casing, first side casing and second side casing enclose to close and form the standing groove that supplies interior casing to place, interior casing can be dismantled with top casing and be connected, top casing, back of the body casing, first side casing and second side casing are hollow structure, the inside of top casing, back of the body casing, first side casing and second side casing communicates with each other.

Through adopting above-mentioned technical scheme, put into the standing groove with interior casing after installing in the top casing, later put into old car of riding instead of walk in advance with shell body and interior casing together and hold the intracavity portion. The top shell covers the opening of the containing cavity for the old driver to tread on. The back shell, the first side shell and the second side shell are abutted to the inner wall of the accommodating cavity, so that the inner shell is fixed in the accommodating cavity, and the influence of vibration when the inner shell is driven by the scooter for the old people and the collision with the inner wall of the accommodating cavity are favorably reduced.

The old car of riding instead of walk need follow the lithium cell group and get the electricity, and the old car of riding instead of walk needs to be connected with the lithium cell group electricity like this. The vehicle of riding instead of walk of old age generally carries out the electricity with the lithium cell and connects and use the conductor wire. The top shell, the back shell, the first side shell and the second side shell are all of hollow structures and are communicated with each other, so that the conducting wires are convenient to run on the outer shell. Meanwhile, the current of the lithium battery pack flows through the conductive wire, the conductive wire can generate heat, the conductive wire is arranged inside the outer shell, and the conductive wire is beneficial to reducing the contact between the conductive wire and the inner shell. Thereby it influences lithium cell group's heat dissipation to reduce the heat of conductor wire and get into inside the interior casing.

Optionally, the placement groove can accommodate at least two inner shells, a battery mainboard is installed inside the top shell, and each battery protection board is electrically connected with the battery mainboard.

Through adopting above-mentioned technical scheme, the inside lithium cell of casing is established ties the back mutually and is connected the formation lithium cell group with battery protection shield electricity in same interior, later lies in the inside lithium cell group of different interior casings and parallelly connected with the battery mainboard. Or the lithium batteries in the same inner shell are mutually connected in parallel and then electrically connected with the battery protection board to form a lithium battery pack, and then the lithium battery packs in different inner shells are connected in series with the battery main board. This facilitates the separation of lithium batteries in parallel or in series with each other. Thus, the lithium battery can be conveniently checked when the lithium battery is damaged.

Optionally, the inner casing comprises an upper casing body and a lower casing body, the bottom of the upper casing body is provided with an insertion block, and the top of the upper casing body is provided with a slot for insertion block damping insertion.

By adopting the technical scheme, when the lithium battery pack needs to be replaced, the insertion block is extracted from the clamping groove, the upper box body and the lower box body are separated, and the lithium battery pack can be replaced at this time. After the lithium battery pack is replaced, the inserting block is inserted into the clamping groove, and the upper box body and the lower box body form an inner shell to surround the lithium battery pack. Thus, the lithium battery is convenient to replace.

Optionally, the upper box body is fixedly provided with a sliding block, the top shell body is fixedly provided with a sliding rail for sliding the sliding block, the upper box body is provided with a limiting plate, the upper box body is provided with a first groove for the limiting plate to penetrate, a first spring is arranged between the limiting plate and the bottom of the first groove, and the top shell body is provided with a second groove for the limiting plate to penetrate.

Through adopting above-mentioned technical scheme, when installing interior casing in the shell body, promote interior casing, the slider slides in the slide rail, and the limiting plate receives the first recess of extrusion withdrawal of top casing. And stopping pushing the inner shell after the inner shell abuts against the back shell, and inserting the limiting plate into the second groove under the influence of the elastic force of the first spring so as to enable the inner shell to be installed on the outer shell. When the inner shell needs to be detached from the outer shell, the limiting plate is extruded, and the limiting plate retracts into the first groove. And pulling the inner shell until the sliding block is separated from the sliding rail. Thereby detaching the inner case from the outer case. This facilitates the detachable mounting of the inner housing to the outer housing.

Optionally, battery motherboard fixed mounting has the sheetmetal, one side fixed mounting that battery protection shield kept away from the lithium cell group has the elastic metal clamping piece that is used for the centre gripping sheetmetal, the elastic metal clamping piece supports pastes in the inner wall that interior casing is close to top casing one side, the opening that supplies the sheetmetal to wear to establish is offered to one side that the top casing is close to interior casing and one side that interior casing is close to the top casing.

Through adopting above-mentioned technical scheme, when the inner casing was installed in the shell body, the metal sheet was held to the elastic metal clamping piece to make battery mainboard and battery protection board electric connection together. And when the inner shell is disassembled from the outer shell, the elastic metal clamping piece is separated from the metal sheet, so that the inner shell is conveniently disassembled from the outer shell. Meanwhile, the elastic metal clamping piece is abutted against the inner wall of the inner shell, so that a gap is formed between the battery protection board and the inner wall of the inner shell. The battery protection board is beneficial to reducing the scratch between the electronic elements on the battery protection board and the inner wall of the inner shell, thereby playing a role in protecting the electronic elements on the battery protection board.

Optionally, one side of the top shell far from the inner shell is fixedly provided with a plurality of hemispheroids, and the hemispheroids are densely distributed on one side of the top shell far from the outer shell.

Through adopting above-mentioned technical scheme, the hemispheroid is used for increasing the frictional force of the one side that the shell kept away from interior casing in the top, and this is favorable to increasing the non-skid property of shell in the top.

Optionally, each of the separation blocks is provided with a first air hole, the first air holes penetrate through the separation blocks, the fixing plate and the adapter plate, and the inner shell is provided with a plurality of second air holes.

Through adopting above-mentioned technical scheme, the heat that lithium cell group produced is discharged from first bleeder vent and second ventilative mouthful, and this heat-sinking capability that is favorable to improving lithium cell group to increase the life of lithium cell.

Optionally, a plurality of exhaust vents are all seted up to one side that first side casing is close to interior casing and one side that second side casing is close to interior casing, first side casing and second side casing internally mounted have the hair-dryer.

Through adopting above-mentioned technical scheme, start the hair-dryer and blow in the inside of first side casing and second side casing, wind is discharged from the exhaust vent. The center of the air outlet hole is collinear with the central axis of each second air vent, so that air discharged from the air outlet holes enters the inner shell from the second air vents. Thereby discharge the heat that the inside lithium cell group of interior casing gived off from the second bleeder vent, this is favorable to dispelling the heat to the lithium cell group to improve the life of lithium cell group.

Optionally, the top housing includes a groove body with an opening facing away from one side of the inner housing and a cover plate matched with the opening of the groove body, the cover plate is fixedly installed with a plurality of first sleeves, a second spring is arranged inside the first sleeves, the groove body is fixedly installed with a plurality of guide rods penetrating the first sleeves, a second sleeve is fixedly installed inside the groove body, a sliding opening is formed in the cylinder wall of the second sleeve, the sliding opening is arranged along the circumferential direction of the second sleeve, the cylinder wall of the second sleeve is further provided with a plurality of bayonets communicated with the sliding opening, the bayonets are arranged at intervals along the length direction of the second sleeve, the length of the bayonets is gradually increased from one end of the sliding opening to the other end, the second sleeve is penetrated with a rotating rod, a clamping block clamped with the bayonet is fixedly installed on the circumferential side wall of the rotating rod, the rotating rod is rotatably connected to the cover plate, and the rotating rod is provided with a limiting ring and a limiting block, the limiting ring abuts against one side, close to the groove body, of the cover plate, the limiting block abuts against one side, far away from the groove body, of the cover plate, and the limiting block is provided with a rotating opening.

Through adopting above-mentioned technical scheme, sit old car of riding instead of walk behind the driver, step on and press the apron, at this moment the second spring receives the extrusion to take place deformation, and the guide bar moves to first sleeve section of thick bamboo is inside, and the dwang moves to second sleeve section of thick bamboo is inside. At this time, the clamping block is positioned in the sliding opening, and the foot is put into the rotating opening to rotate, so that the rotating rod rotates. The dwang drives the fixture block and loosens the foot when moving to with bayonet socket juncture along the length direction of sliding opening, and the second spring resumes, and the guide bar removes to first sleeve section of thick bamboo outside, and the dwang removes to second sleeve section of thick bamboo outside, and the fixture block slips into the bayonet socket. At this moment, the cover plate is separated from the groove body, so that the inside of the outer shell is communicated with the outside, the heat emitted by the lithium battery pack is favorably discharged by the lithium battery pack, and the service life of the lithium battery pack is prolonged.

When the automobile for riding instead of walk for the old is not driven, the cover plate is stepped on, and the clamping block enters the sliding opening from the bayonet. The foot is put into the rotating opening to rotate, so that the rotating rod rotates. The rotating rod drives the clamping block to move along the sliding opening to the junction with the bayonet and then loosens the foot. At this time, the cover plate covers the tank body, thereby closing the outer shell. This is favorable to reducing when not driving old car of riding instead of walk, and inside the moist air of external world got into the shell body, and the inside condition of casing appears in the later entering. Thereby reducing the occurrence of humid air corrosion of the lithium battery.

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

1. each lithium battery is separated by the separation block, so that a gap is generated between every two adjacent lithium batteries, heat dissipation of the lithium batteries is facilitated, and the service life of the lithium batteries is prolonged;

2. when the inner shell is installed in the outer shell, the elastic metal clamping piece clamps the metal sheet, the battery protection plate is electrically connected with the battery main board, and when the inner shell is detached from the outer shell and the elastic metal clamping piece is separated from the metal sheet, the battery protection plate is separated from the battery main board, so that the inner shell is conveniently detached or installed in the outer shell;

3. the lithium battery pack is supplied with heat through the first air holes and the second air holes to dissipate heat, and the service life of the lithium battery is prolonged.

Drawings

FIG. 1 is a schematic view of the overall structure of embodiment 1 of the present application;

fig. 2 is an exploded view of the outer case of embodiment 1 of the present application;

fig. 3 is a schematic structural view of an outer case of embodiment 1 of the present application;

fig. 4 is a schematic structural view of an inner case of embodiment 1 of the present application;

fig. 5 is an exploded view of an inner case and a lithium battery pack according to example 1 of the present application;

fig. 6 is an exploded view of the inner case of embodiment 1 of the present application;

fig. 7 is an exploded view of a lithium battery pack according to example 1 of the present application;

FIG. 8 is a schematic view of the overall structure of embodiment 2 of the present application;

FIG. 9 is an exploded view of example 2 of the present application;

FIG. 10 is a partial structural view of embodiment 2 of the present application;

fig. 11 is an exploded view of an inner case and a lithium battery pack according to example 2 of the present application;

fig. 12 is a schematic structural view of a cover plate according to embodiment 2 of the present application.

Description of reference numerals: 1. a fixing plate; 2. an adapter plate; 3. a baffle plate; 4. a separation block; 5. a connecting belt; 6. buckling; 7. a support sleeve; 8. a battery main board; 9. inserting a block; 10. a slot; 11. a slider; 12. a slide rail; 13. a limiting plate; 14. a first groove; 15. a second groove; 16. a first spring; 17. a second spring; 18. a metal sheet; 19. an elastic metal clip; 20. a port; 21. a hemisphere; 22. a first air vent; 23. a second air hole; 24. an air outlet; 25. a blower; 26. a lithium battery pack; 261. a battery protection plate; 262. a lithium battery; 27. an inner housing; 271. an upper box body; 272. a lower box body; 28. an outer housing; 281. a top housing; 2811. a trough body; 2812. a cover plate; 282. a back housing; 283. a first side housing; 284. a second side housing; 29. a placement groove; 30. a first sleeve; 31. a second sleeve; 32. a rotation port; 33. a limiting block; 34. a limiting ring; 35. a sliding port; 36. a bayonet; 37. a clamping block; 38. rotating the rod.

Detailed Description

The present application is described in further detail below with reference to figures 1-12.

Example 1

The embodiment of the application discloses a lithium battery protection device for an old person scooter.

Referring to fig. 1, 2 and 3, a lithium battery protection device for an elderly scooter includes an outer case 28 and an inner case 27; the outer casing 28 includes a top casing 281, a back casing 282, a first side casing 283 and a second side casing 284, wherein the back casing 282, the first side casing 283 and the second side casing 284 are all fixedly installed at the bottom of the top casing 281, and the top casing 281, the back casing 282, the first side casing 283 and the second side casing 284 are all hollow structures and are communicated with each other. The top case 281, the back case 282, the first side case 283 and the second side case 284 enclose a placement slot 29 for placing the inner case 27. The placement groove 29 can accommodate at least two inner shells 27 inside, in the present embodiment two inner shells 27 inside the placement groove 29. A plurality of hemispheres 21 are fixedly attached to the top of the top case 281, and the hemispheres 21 are densely arranged on the top of the top case 281.

Referring to fig. 4, 5 and 6, the inner housing 27 includes an upper housing 271 and a lower housing 272, an insert 9 is protruded along an edge of a bottom of the upper housing 271, a slot 10 is opened along an edge of a top of the upper housing 271, and the insert 9 is inserted into the slot 10 through damping.

Referring to fig. 3, 5 and 6, a slider 11 is fixedly mounted on one side of the upper case 271 close to the top case 281, and a slide rail 12 for sliding the slider 11 is fixedly mounted on one side of the top case 281 close to the upper case 271. The upper box body 271 is provided with a limit plate 13, the upper box body 271 is provided with a first groove 14 for the limit plate 13 to penetrate through, a first spring 16 is installed between the limit plate 13 and the bottom of the first groove 14, and the top shell 281 is provided with a second groove 15 for the limit plate 13 to penetrate through. The part of the limit plate 13 which is pushed by the second spring 17 and penetrates out of the first groove 14 is obliquely arranged to form a guide surface.

When the slider 11 is placed in the slide rail 12 and the inner housing 27 is pushed to move, the guide surface formed by the inclined arrangement of the limit plate 13 is pressed by the top housing 281, so that the limit plate 13 is retracted into the first groove 14, and when the inner housing 27 abuts against the back housing 282, the limit plate 13 penetrates through the first groove 14 and is inserted into the second groove 15, so that the inner housing 27 is mounted on the outer housing 28. The stopper plate 13 is pulled through the inside of the first groove 14, and the inner case 27 is pulled to separate the slider 11 from the slide rail 12, thereby detaching the inner case 27 from the outer case 28.

Referring to fig. 5 and 7, a lithium battery pack 26, a fixing plate 1 and an adapter plate 2 are disposed inside the inner case 27, the lithium battery pack 26 includes a battery protection plate 261 and a plurality of lithium batteries 262, and the number of the lithium batteries 262 is plural. Fixed plate 1 and keysets 2 all have two, and two fixed plates 1 are supported respectively and are pasted in the both ends of lithium cell group 26, and keysets 2 supports and paste in one side that lithium cell group 26 was kept away from in fixed plate 1. The lithium battery 262 is electrically connected to the interposer 2, and the interposer 2 is electrically connected to the battery protection plate 261.

The baffle 3 abutting against the lithium battery 262 is fixedly mounted on the peripheral side of the fixing plate 1, the plurality of separating blocks 4 are fixedly mounted on one surface of the fixing plate 1 close to the lithium battery 262, and the peripheral sides of the separating blocks 4 abut against the lithium battery 262. Connecting bands 5 are fixedly arranged on two opposite sides of the baffle 3, and buckles 6 are arranged between the connecting bands 5 positioned on different baffles 3. The connecting strips 5 are connected to each other by means of a snap 6, so that the fixing plate 1 is pressed against the lithium battery pack 26.

The battery protection plate 261 is provided with a plurality of support sleeves 7, and the battery protection plate 261 and the support sleeves 7 are connected to each other by bolts. One end of the support sleeve 7 remote from the battery protection plate 261 is fixedly mounted to the connection band 5. The support sleeve 7 separates the battery protection plate 261 from the lithium battery 262, thereby creating a gap between the battery protection plate 261 and the lithium battery 262. This is advantageous in reducing the occurrence of the situation where the battery protection plate 261 abuts against the lithium battery 262 to affect the heat dissipation of the lithium battery 262.

Referring to fig. 2, 4 and 5, a battery main board 8 is mounted inside the top case 281, a metal sheet 18 is fixedly mounted on the battery main board 8, and an elastic metal clip 19 for clamping the metal sheet 18 is fixedly mounted on one side of the battery protection plate 261 away from the lithium battery pack 26. The top case 281 is provided with a through hole 20 through which the metal sheet 18 passes, on one side close to the inner case 27 and on one side close to the top case 281 of the inner case 27. The elastic metal clip 19 abuts against the inner wall of the inner housing 27 near the top housing 281. When the elastic metal clip 19 clamps the metal piece 18, the battery main board 8 is electrically connected with the battery protection plate 261; when the elastic metal clips 19 release the metal pieces 18, the battery main board 8 is disconnected from the battery protection plate 261.

The implementation principle of the lithium battery protection device for the old mobility scooter is as follows: the lithium battery 262 is placed between the two fixing plates 1, and the lithium battery 262 is surrounded and bound by the baffle 3. The partition block 4 serves to partition each lithium battery 262 such that a gap is created between adjacent two lithium batteries 262. The two fixing plates 1 are connected together by means of a snap 6. The battery protection plate 261 is mounted to the connection band 5 through the support sleeve 7, and the lithium battery 262 is electrically connected to the battery protection plate 261 after being transferred through the transfer plate 2. Thus, gaps are formed between two adjacent lithium batteries 262 or between the lithium batteries 262 and the battery protection plate 261, so that the heat emitted by the lithium batteries 262 can be conveniently discharged, and the service life of the lithium batteries 262 can be prolonged.

The lithium battery pack 26 is placed inside the inner shell 27, then the sliding block 11 is aligned with the sliding rail 12 and slides in, and the limiting plate 13 is squeezed to retract into the first groove 14. When the inner case 27 hits the back case 282, the stopper plate 13 is pushed by the first spring 16 to be inserted into the second recess 15. Thereby mounting inner housing 27 to outer housing 28. When the inner case 27 is to be detached from the outer case 28, the stopper plate 13 is pressed, the stopper plate 13 is retracted inside the first groove 14, and then the inner case 27 is pulled out from the placement groove 29.

The elastic metal clips 19 hold the metal pieces 18 when the inner case 27 is mounted to the outer case 28. The battery protection plate 261 is electrically connected to the battery main board 8 at this time. The inside hollow structure that is of shell body 28, the electric lead between battery mainboard 8 and the old age car of riding instead of walk is laid in shell body 28 is inside like this, and this is favorable to reducing the electric lead and contacts with lithium cell group 26 and influence radiating the condition and appear.

Example 2

This embodiment discloses a lithium cell protection device that old person's car of riding instead of walk used.

Referring to fig. 8, 9 and 10, the lithium battery protection device for the scooter for the elderly in the present embodiment is different from embodiment 1 in that a blower 25 is installed inside a first side housing 283 and a second side housing 284, and a plurality of air outlet holes 24 are respectively formed on one side of the first side housing 283 close to an inner housing 27 and one side of the second side housing 284 close to the inner housing 27. The air outlets 24 on the first side housing 283 and the air outlets 24 on the second side housing 284 are in one-to-one correspondence, and the central axes of the two air outlets 24 are collinear.

Referring to fig. 11, each of the separation blocks 4 is provided with a first vent hole 22, and the first vent hole 22 penetrates through the separation block 4, the fixing plate 1 and the adapter plate 2. A plurality of second ventilation holes 23 are formed in one side of the inner shell 27 close to the first side shell 283 and one side of the inner shell 27 far away from the first side shell 283. The first vent hole 22 and the second vent hole 23 are both located on the projection of the air outlet hole 24 along the length direction of the central axis.

The blower 25 is activated, and the air blown from the blower 25 is discharged from the air outlet 24, then enters the inside of the inner case 27 through the second air vent 23, then enters the gap between the lithium batteries 262 through the first air vent 22, and finally is discharged from the first air vent 22 and the second air vent 23. This is advantageous in accelerating the flow rate of air inside the inner case 27, thereby functioning as heat dissipation to the lithium battery pack 26.

Referring to fig. 10 and 12, the top case 281 includes a groove body 2811 opened to a side away from the inner case 27 and a cover plate 2812 matched with the opening of the groove body 2811. A plurality of guide rods are fixedly mounted on the inner wall of the groove body 2811, and a plurality of first sleeves 30 for the guide rods to penetrate through are fixedly mounted on one side of the cover plate 2812 close to the groove body 2811. The first sleeve 30 is provided therein with a second spring 17, the second spring 17 is connected to one end of the guide rod, and the other end of the second spring 17 is connected to the cover plate 2812.

The second sleeve 31 is fixedly installed inside the groove body 2811, and a plurality of bayonets 36 are formed in the wall of the second sleeve 31. Each of the bayonets 36 is arranged at intervals in the circumferential direction of the second sleeve 31. The wall of the second sleeve 31 is provided with a sliding opening 35, the sliding opening 35 is arranged along the circumferential direction of the second sleeve 31, the sliding opening 35 is communicated with each bayonet 36, and the length of the bayonet 36 is gradually increased from one end of the sliding opening 35 to the other end.

The second sleeve 31 is provided with a rotating rod 38 in a penetrating manner, a clamping block 37 clamped with the bayonet 36 is fixedly installed on the peripheral side wall of the rotating rod 38, the rotating rod 38 is rotatably connected to the cover plate 2812, the rotating rod 38 is fixedly sleeved with a limiting ring 34 and a limiting block 33, the limiting ring 34 abuts against one side, close to the groove body 2811, of the cover plate 2812, the limiting block 33 abuts against one side, far away from the groove body 2811, of the cover plate 2812, and the limiting block 33 is provided with a rotating opening 32.

The implementation principle of the lithium battery protection device for the old mobility scooter is as follows: after the driver sits on the old-aged vehicle, the blower 25 is started, and the air blown by the blower 25 is discharged from the air outlet 24 and then enters the inside of the inner casing 27 through the second air holes 23. The wind introduced into the inside of the inner case 27 enters the gaps between the lithium batteries 262 through the first airing holes 22, and then the heat emitted from the lithium batteries 262 is discharged through the first airing holes 22 and the second airing holes 23. This is advantageous in accelerating the flow rate of air inside the inner case 27, thereby functioning as heat dissipation to the lithium battery pack 26.

After the driver sits on the old-age scooter, the driver presses the cover plate 2812 with his foot, and at this time, the latch 37 is located inside the sliding opening 35, and the foot is put into the rotating opening 32 to rotate, so that the rotating rod 38 rotates. The rotating rod 38 drives the clamping block 37 to move to the intersection with the clamping opening 36 along the length direction of the sliding opening 35 to release the foot. The guide rod is influenced by the elastic force of the second spring 17 to move towards the outside of the first sleeve 30, so that the rotating rod 38 is driven to move towards the outside of the second sleeve 31, and the clamping block 37 slides into the clamping opening 36. The cap 2812 is separated from the groove 2811, and the inside of the outer case 28 is communicated with the outside. This facilitates the lithium battery pack 26 to remove heat dissipated by the lithium battery pack 26, thereby improving the service life of the lithium battery pack 26.

When the old-aged scooter is not driven, the cover plate 2812 is stepped on, and the clamping block 37 enters the sliding opening 35 from the clamping opening 36. The foot is put into the rotation opening 32 to rotate, thereby rotating the rotation lever 38. The rotating rod 38 drives the clamping block 37 to move along the sliding opening 35 to the position where the clamping block does not interface with the clamping opening 36, and the clamping block is loosened. The cover 2812 now covers the slot 2811, thereby closing the outer housing 28. This is advantageous in reducing the likelihood that ambient, moist air will enter the interior of the outer housing 28 and then the interior of the inner housing 27 when the elderly scooter is not being driven. Thereby reducing the occurrence of humid air corrosion of the lithium battery 262.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.