CN215418440U - Lithium battery pack for electric bicycle - Google Patents

Lithium battery pack for electric bicycle Download PDF

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Publication number
CN215418440U
CN215418440U CN202121815738.5U CN202121815738U CN215418440U CN 215418440 U CN215418440 U CN 215418440U CN 202121815738 U CN202121815738 U CN 202121815738U CN 215418440 U CN215418440 U CN 215418440U
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China
Prior art keywords
battery pack
lithium battery
motor
heat dissipation
threaded
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CN202121815738.5U
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Chinese (zh)
Inventor
吕柏全
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Wuxi Chentao New Energy Technology Co ltd
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Wuxi Chentao New Energy Technology Co ltd
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Abstract

The utility model belongs to the field of lithium battery packs for electric bicycles, and particularly relates to a lithium battery pack for an electric bicycle, which comprises an installation shell, a lithium battery pack body, heat dissipation holes, a placement piece and a heat dissipation mechanism, wherein the installation shell is provided with a plurality of heat dissipation holes; through opening first motor, utilize the rotation of second threaded rod and with the screw-thread fit of screw thread spare, make the screw thread spare can be at the inside horizontal migration of fixed box, horizontal migration through the screw thread spare, can utilize fan motor to blow to the inside position of installation casing, blow off the heat of lithium cell group body from the net department of placing the piece, and carry the outside to the installation casing from the position of louvre, cool down the heat that the lithium cell group body produced, the inside high temperature of casing has been solved and has been gathered, cause lithium cell group fire accident very easily, lead to personnel and property loss's problem.

Description

Lithium battery pack for electric bicycle
Technical Field
The utility model relates to the field of lithium battery packs for electric bicycles, in particular to a lithium battery pack for an electric bicycle.
Background
Most of electric vehicles use a lithium battery pack as a power supply.
The lithium battery pack of the conventional electric bicycle is generally fixed in a plastic shell, and a heat dissipation device is not arranged in the shell, so that the heat in the lithium battery pack cannot be dissipated, the high temperature in the shell can be accumulated, the fire accident of the lithium battery pack is easily caused, and the problem of personnel and property loss is caused; therefore, a lithium battery pack for an electric bicycle is proposed to solve the above problems.
SUMMERY OF THE UTILITY MODEL
In order to make up for the defects of the prior art and solve the problems that the lithium battery pack of the conventional electric bicycle is generally fixed in a plastic shell, and a heat dissipation device is not arranged in the shell, so that the heat in the lithium battery pack cannot be dissipated, the high temperature in the shell can be accumulated, the fire accident of the lithium battery pack is easily caused, and the personnel and property loss is caused, the utility model provides the lithium battery pack for the electric bicycle.
The technical scheme adopted by the utility model for solving the technical problems is as follows: the utility model relates to a lithium battery pack for an electric bicycle, which comprises an installation shell, a lithium battery pack body, heat dissipation holes, a placement piece and a heat dissipation mechanism, wherein the heat dissipation holes are formed in the lithium battery pack body; the placing piece is fixedly connected inside the mounting shell, the lithium battery pack body is arranged inside the placing piece, the heat dissipation holes are formed in two sides of the outer surface of the mounting shell, and the heat dissipation mechanism is fixed inside the mounting shell;
the heat dissipation mechanism comprises first motor, fan motor, screw, second threaded rod and fixed box, first motor rigid coupling is in surface one side of installation casing, the one end rigid coupling of second threaded rod is in the output shaft of first motor, the both ends of second threaded rod are passed through bearing rigid coupling in the inside of fixed box, the screw thread cup joints in the surface of second threaded rod, fan motor installs in the top of screw, the sliding port has been seted up at the top of fixed box, has solved the inside high temperature of casing and has gathered, causes lithium cell group fire accident very easily, leads to personnel and property loss's problem.
Preferably, the outer surface of the placing piece is provided with a grid; during operation, the heat of the lithium battery pack body is conveniently dissipated.
Preferably, the top of the mounting shell is connected with a top cover through a bolt thread; during operation, the installation and the dismantlement of lithium cell group body are convenient for guarantee through the top cap stable.
Preferably, the inside rigid coupling of installation casing has the fixed plate, the equal rigid coupling in bottom both sides of fixed plate has the supporting shoe, two it has the lifter plate to slide to peg graft between the supporting shoe, the bottom of lifter plate is provided with the universal wheel, the second motor is installed at the top of fixed plate, the output shaft rigid coupling of second motor has first threaded rod, has solved the problem that the group battery is not portable.
Preferably, the supporting blocks are arranged on one side of the outer surfaces of the two supporting blocks, and two ends of the lifting plate are respectively inserted into the two supporting blocks; during operation, the lifting stability of the lifting plate is convenient.
Preferably, the outer surface of the lifting plate is provided with a threaded hole, and one end of the first threaded rod is inserted into the threaded hole in a threaded manner; during operation, be convenient for through the rotation of first threaded rod, drive the lifter plate and go up and down.
The utility model has the advantages that:
1. according to the utility model, through the structural design of the placing piece, the heat dissipation holes, the fan motor, the threaded piece and the second threaded rod, the lithium battery pack body is placed in the placing piece, the threaded piece can horizontally move in the fixing box by turning on the first motor and utilizing the rotation of the second threaded rod and the threaded fit with the threaded piece, and through the horizontal movement of the threaded piece, the fan motor can be used for blowing air to the position in the mounting shell, so that the heat of the lithium battery pack body is blown out from the grid of the placing piece and is conveyed to the outside of the mounting shell from the positions of the heat dissipation holes, and the heat generated by the lithium battery pack body is cooled, so that the problems that the high temperature in the shell is accumulated, the lithium battery pack is easily subjected to fire accidents, and personnel and property loss are caused are solved;
2. according to the utility model, through the structural design of the universal wheel, the supporting block, the lifting plate, the lifting groove and the fixing plate, the lifting plate is driven to lift by turning on the second motor and utilizing the rotation of the first threaded rod, so that the universal wheel can lift in the mounting shell, when the universal wheel extends out through the opening at the bottom of the mounting shell and is contacted with the ground, the battery pack can be conveniently pulled, when the universal wheel is contracted to the inside of the mounting shell, the battery pack can be conveniently mounted in the electric vehicle, and the problem that the battery pack is inconvenient to carry is solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
FIG. 1 is a sectional front view of a mounting housing according to an embodiment;
FIG. 2 is an enlarged schematic view of a portion A of FIG. 1 according to the first embodiment;
FIG. 3 is an enlarged structural diagram of a portion B in FIG. 1 according to the first embodiment;
FIG. 4 is a perspective view of a fixing box according to the first embodiment;
fig. 5 is a schematic structural view of a tie bar according to a second embodiment.
In the figure: 1. installing a shell; 2. heat dissipation holes; 3. a first motor; 4. a lithium battery pack body; 5. a top cover; 6. placing the piece; 7. a second motor; 8. a first threaded rod; 9. a fan motor; 10. a threaded member; 11. a second threaded rod; 12. a fixing box; 13. a universal wheel; 14. a support block; 15. a lifting plate; 16. a lifting groove; 17. a sliding port; 18. a pull rod; 19. and (7) fixing the plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
Referring to fig. 1-4, a lithium battery pack for an electric bicycle includes a mounting case 1, a lithium battery pack body 4, a heat dissipation hole 2, a placement member 6, and a heat dissipation mechanism; the placing piece 6 is fixedly connected inside the mounting shell 1, the lithium battery pack body 4 is arranged inside the placing piece 6, the heat dissipation holes 2 are formed in two sides of the outer surface of the mounting shell 1, and the heat dissipation mechanism is fixed inside the mounting shell 1;
the heat dissipation mechanism comprises a first motor 3, a fan motor 9, a threaded part 10, a second threaded rod 11 and a fixed box 12, wherein the first motor 3 is fixedly connected to one side of the outer surface of the installation shell 1, one end of the second threaded rod 11 is fixedly connected to an output shaft of the first motor 3, two ends of the second threaded rod 11 are fixedly connected to the inside of the fixed box 12 through bearings, the threaded part 10 is in threaded sleeve connection with the outer surface of the second threaded rod 11, the fan motor 9 is installed at the top of the threaded part 10, and a sliding opening 17 is formed in the top of the fixed box 12; during operation, lithium cell group body 4 is placed in the inside of placing 6, through opening first motor 3, utilize the rotation of second threaded rod 11 and with the screw-thread fit of screw 10, make screw 10 can be at the inside horizontal migration of fixed box 12, horizontal migration through screw 10, can utilize fan motor 9 to blow to the position of installing 1 insides of casing, blow off lithium cell group body 4's heat from the net of placing 6, and carry to the outside of installing casing 1 from louvre 2's position, cool down the heat that lithium cell group body 4 produced, the inside high temperature of casing has been solved and has been gathered, cause lithium cell group fire accident very easily, lead to personnel and property loss's problem.
The outer surface of the placing piece 6 is provided with a grid; during operation, the heat of the lithium battery pack body 4 is conveniently dissipated.
The top of the mounting shell 1 is connected with a top cover 5 through bolt threads; during operation, be convenient for guarantee through top cap 5 that the installation of lithium cell group body 4 is stable with the dismantlement.
A fixed plate 19 is fixedly connected inside the mounting shell 1, supporting blocks 14 are fixedly connected to two sides of the bottom of the fixed plate 19, a lifting plate 15 is inserted between the two supporting blocks 14 in a sliding mode, a universal wheel 13 is arranged at the bottom of the lifting plate 15, a second motor 7 is mounted at the top of the fixed plate 19, and a first threaded rod 8 is fixedly connected to an output shaft of the second motor 7; the during operation is convenient for through opening second motor 7, utilizes the rotation of first threaded rod 8, drives lifter plate 15 and goes up and down, can make universal wheel 13 go up and down in the inside of installation casing 1, when universal wheel 13 stretches out through the opening of installation casing 1 bottom and with ground contact, the pulling of the group battery of can being convenient for is convenient, when universal wheel 13 contracts to the inside of installation casing 1, can be convenient for install the group battery inside the electric motor car.
The supporting blocks 14 are respectively arranged on one side of the outer surfaces of the two supporting blocks 14, and two ends of the lifting plate 15 are respectively inserted into the two supporting blocks 14; during operation, the lifting stability of the lifting plate 15 is facilitated.
A threaded hole is formed in the outer surface of the lifting plate 15, and one end of the first threaded rod 8 is inserted into the threaded hole in a threaded manner; during operation, be convenient for through the rotation of first threaded rod 8, drive lifter plate 15 goes up and down.
Example two
Referring to fig. 5, in a first comparative example, as another embodiment of the present invention, a lifting plate 15 is fixed to the top of the top cover 5; during operation, the handlability of the installation shell 1 is convenient.
The working principle is that by starting the first motor 3, the screw 10 can horizontally move in the fixed box 12 by utilizing the rotation of the second threaded rod 11 and the screw-thread fit with the screw 10, the fan motor 9 can be used for blowing air to the position in the installation shell 1 by utilizing the horizontal movement of the screw 10, the heat of the lithium battery pack body 4 is blown out from the grid of the placing part 6 and is conveyed to the outside of the installation shell 1 from the position of the heat dissipation hole 2, the heat generated by the lithium battery pack body 4 is cooled, the problem of personnel and property loss caused by the fire accident of the lithium battery pack due to high-temperature accumulation in the shell is solved, by starting the second motor 7, the lifting plate 15 is driven to lift by utilizing the rotation of the first threaded rod 8, the universal wheel 13 can lift in the installation shell 1, when the universal wheel 13 extends out through the opening at the bottom of the installation shell 1 and is contacted with the ground, can be convenient for the pulling of group battery convenient, when universal wheel 13 shrink to the inside of installation casing 1, can be convenient for install the group battery inside the electric motor car.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed.

Claims (6)

1. The utility model provides a lithium cell group for electric bicycle which characterized in that: the lithium battery pack comprises a mounting shell (1), a lithium battery pack body (4), heat dissipation holes (2), a placing piece (6) and a heat dissipation mechanism; the placing piece (6) is fixedly connected inside the mounting shell (1), the lithium battery pack body (4) is arranged inside the placing piece (6), the heat dissipation holes (2) are formed in two sides of the outer surface of the mounting shell (1), and the heat dissipation mechanism is fixed inside the mounting shell (1);
the heat dissipation mechanism comprises a first motor (3), a fan motor (9), a threaded part (10), a second threaded rod (11) and a fixed box (12), the first motor (3) is fixedly connected to one side of the outer surface of an installation shell (1), one end of the second threaded rod (11) is fixedly connected to the output shaft of the first motor (3), two ends of the second threaded rod (11) are fixedly connected to the inner part of the fixed box (12) through bearings, the threaded part (10) is sleeved on the outer surface of the second threaded rod (11) in a threaded manner, the fan motor (9) is installed at the top of the threaded part (10), and a sliding opening (17) is formed in the top of the fixed box (12).
2. The lithium battery pack for an electric bicycle according to claim 1, wherein: the outer surface of the placing piece (6) is provided with a grid.
3. The lithium battery pack for an electric bicycle according to claim 2, wherein: the top of the mounting shell (1) is connected with a top cover (5) through bolt threads.
4. The lithium battery pack for an electric bicycle according to claim 3, wherein: the inside rigid coupling of installation casing (1) has fixed plate (19), the equal rigid coupling in bottom both sides of fixed plate (19) has supporting shoe (14), two it has lifter plate (15) to slide the grafting between supporting shoe (14), the bottom of lifter plate (15) is provided with universal wheel (13), second motor (7) are installed at the top of fixed plate (19), the output shaft rigid coupling of second motor (7) has first threaded rod (8).
5. The lithium battery pack for an electric bicycle according to claim 4, wherein: supporting blocks (14) are arranged on one sides of the outer surfaces of the two supporting blocks (14), and two ends of the lifting plate (15) are respectively inserted into the two supporting blocks (14).
6. The lithium battery pack for an electric bicycle according to claim 5, wherein: the outer surface of the lifting plate (15) is provided with a threaded hole, and one end of the first threaded rod (8) is inserted into the threaded hole in a threaded manner.
CN202121815738.5U 2021-08-04 2021-08-04 Lithium battery pack for electric bicycle Active CN215418440U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202121815738.5U CN215418440U (en) 2021-08-04 2021-08-04 Lithium battery pack for electric bicycle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202121815738.5U CN215418440U (en) 2021-08-04 2021-08-04 Lithium battery pack for electric bicycle

Publications (1)

Publication Number Publication Date
CN215418440U true CN215418440U (en) 2022-01-04

Family

ID=79657330

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202121815738.5U Active CN215418440U (en) 2021-08-04 2021-08-04 Lithium battery pack for electric bicycle

Country Status (1)

Country Link
CN (1) CN215418440U (en)

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