Bicycle battery pack

Abstract

The utility model discloses a bicycle battery pack, and relates to the technical field of battery packs, the bicycle battery pack comprises a rectangular protective shell with an opening at one end, a cooling mechanism is arranged in the protective shell, a battery mechanism is arranged on the cooling mechanism in the protective shell, and each cooling flow channel pipe of the cooling mechanism of the device is vertical and is not bent. The vertical cooling flow channel pipe replaces a previous winding rugged cooling flow channel, the situation that due to the winding design, the resistance of fluid passing through the flow channel is increased, the energy loss of gas flowing is increased, and the cooling efficiency is reduced is avoided, meanwhile, the vertical cooling flow channel pipe enables gas flowing to be more uniform, heat exchange is more sufficient, and the cooling effect is enhanced; the battery mechanism of the device is fixed in the protective shell through the fixing mechanism, when the battery mechanism is taken out, the fixation of the battery main body can be relieved only by rotating the knob and moving the four plug-ins out of the slots through the assembly, and then the battery main body can be taken out, so that the disassembly of the battery becomes simple, and the operation of a worker is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of battery packs, in particular to a bicycle battery pack. Background Art

[0002] An electric bicycle is a mechatronic personal transportation vehicle that uses batteries as auxiliary energy and is based on an ordinary bicycle. It is equipped with a motor, controller, battery, handlebars and other operating components and a display instrument system. It also has a bicycle battery pack inside, which is roughly the same as an ordinary battery pack.

[0003] For example, the patent website discloses an integrated heat sink for a battery pack (publication number: CN219329306U). The pulsating flow channel and the water-cooling flow channel of this device are both serpentine. The serpentine design will increase the resistance of the fluid passing through the flow channel, resulting in increased energy loss of the fluid flow, thereby reducing the cooling efficiency. At the same time, in the serpentine flow channel, the fluid may experience uneven flow, such as eddy currents and uneven flow velocity distribution, which may affect the cooling effect. Therefore, a person skilled in the art has proposed a bicycle battery pack. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a bicycle battery pack to solve the problems in the above background.

[0005] To achieve the above purpose, the utility model is implemented through the following technical solutions: a bicycle battery pack, comprising a rectangular protective shell with an opening at one end, a cooling mechanism is arranged inside the protective shell, a battery mechanism is arranged on the cooling mechanism inside the protective shell, a fixing mechanism is arranged inside the top plate of the protective shell, the cooling mechanism comprises a graphene plate installed on the bottom surface of the inner side of the protective shell, the graphene plate is installed with a plurality of evenly distributed cooling flow channel tubes, the ends of all the cooling flow channel tubes are jointly installed with a shunt tube inside the graphene plate, the other end of each of the cooling flow channel tubes extends to the outside of the protective shell, a blower is installed on the side of the protective shell, a connecting pipe is installed on the output end of the blower, which passes through the side of the protective shell and extends into the graphene plate and is connected with the shunt tube, an air outlet pipe is installed on the side of the shunt pipe and extends to the outside of the graphene plate, and an electromagnetic valve is arranged on the air outlet pipe.

[0006] As a further technical solution of the utility model, the fixing mechanism is close to two corresponding slots opened on the top surface of the protective shell, and two groups of cavities are opened in the top plate of the protective shell between the two slots. A limit plate is slidably arranged in each of the cavities, and a spring is arranged on one side of the limit plate in each of the cavities, and a plug-in extending into the adjacent side slot is installed at the center of the other side surface of each limit plate.

[0007] As a further technical solution of the utility model, a center groove is opened inside the top plate of the protective shell between each group of two cavities, and rotating rods are installed in the two center grooves for common rotation. A pull rope with an end extending into the corresponding center groove and fixed to the rotating rod is installed at the side center of each limit plate. One end of the rotating rod extends to the outside of the protective shell and is installed with a knob.

[0008] As a further technical solution of the utility model, the battery mechanism includes a battery main body arranged in a protective shell and located on the upper surface of the graphene plate, and a handle is installed on the side of the battery main body.

[0009] As a further technical solution of the utility model, each of the card slots is provided with a card plate adapted thereto and fixedly connected to the battery body on its lower surface, and each of the card plates has two slots adapted to the plug-in on its side.

[0010] Beneficial Effects

[0011] The utility model provides a bicycle battery pack. Compared with the prior art, it has the following beneficial effects:

[0012] 1. A bicycle battery pack, wherein each cooling channel tube of the cooling mechanism of the device is vertical without bending, replacing the previous winding and rugged cooling channel, avoiding the situation in which the winding design increases the resistance of the fluid passing through the channel, resulting in increased energy loss of gas flow, thereby reducing the cooling efficiency. At the same time, the vertical cooling channel tube makes the gas flow more uniform, the heat exchange more sufficient, and the cooling effect is enhanced.

[0013] 2. A bicycle battery pack, in which the battery mechanism of the device is fixed in a protective shell by a fixing mechanism. When taking it out, it is only necessary to rotate the knob through the assembly to move four plug-ins out of the slot to release the fixation of the battery body, and then it can be taken out, making it easy to disassemble the battery. Only the knob needs to be rotated, which is convenient for the staff to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of a bicycle battery pack;

[0015] Figure 2 is a side view of a bicycle battery pack;

[0016] Figure 3 This is a disassembly diagram of a bicycle battery pack;

[0017] Figure 4 A cross-sectional view of a fixing mechanism of a bicycle battery pack;

[0018] Figure 5 A cross-sectional view of a cooling mechanism for a bicycle battery pack.

[0019] In the figure: 1. protective shell; 2. card slot; 3. cavity; 4. limit plate; 5. spring; 6. plug-in; 7. center slot; 8. rotating rod; 9. pull rope; 10. knob; 11. card plate; 12. slot; 13. handle; 14. graphene plate; 15. shunt pipe; 16. cooling flow channel pipe; 17. exhaust pipe; 18. solenoid valve; 19. connecting pipe; 20. blower; 21. battery body. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-5 The utility model provides a technical solution for a bicycle battery pack: a bicycle battery pack comprises a rectangular protective shell 1 with an opening at one end, a cooling mechanism is arranged inside the protective shell 1, a battery mechanism is arranged on the cooling mechanism inside the protective shell 1, a fixing mechanism is arranged inside the top plate of the protective shell 1, the cooling mechanism comprises a graphene plate 14 installed on the inner bottom surface of the protective shell 1, a plurality of evenly distributed cooling channel pipes 16 are installed on the graphene plate 14, the ends of all the cooling channel pipes 16 are jointly installed with a shunt pipe 15 inside the graphene plate 14, the other end of each cooling channel pipe 16 extends to the outside of the protective shell 1, a blower 20 is installed on the side of the protective shell 1, a connecting pipe 19 is installed on the output end of the blower 20, which runs through the side of the protective shell 1 and extends into the graphene plate 14 and is connected with the shunt pipe 15, and a connecting pipe 19 extending to The air outlet pipe 17 outside the graphene plate 14 is provided with a solenoid valve 18. When in use, the running blower 20 injects gas into the shunt pipe 15 through the connecting pipe 19. The gas enters each cooling channel pipe 16 after being shunted by the shunt pipe 15, and finally flows out from the end of each cooling channel pipe 16, so that the gas circulates in the cooling channel pipe 16. The heat generated by the battery body 21 during charging is transferred to the graphene plate 14. Thereafter, the graphene plate 14 exchanges heat with the gas flowing in each cooling channel pipe 16, and the heat is discharged with the gas to play a heat dissipation role. Since each cooling channel pipe 16 is vertical and has no bends, instead of the previous winding and rugged shape, it avoids the situation where the winding design increases the resistance of the fluid through the channel, resulting in increased energy loss of gas flow, thereby reducing the cooling efficiency. At the same time, the vertical cooling channel pipe 16 makes the gas flow more uniform.

[0022] See also Figure 1-3 The battery mechanism includes a battery body 21 arranged in a protective shell 1 and on the upper surface of a graphene plate 14, a handle 13 is installed on the side of the battery body 21, and each of the card slots 2 is provided with a card plate 11 adapted thereto and fixedly connected to the battery body 21 on the lower surface, and each of the card plates 11 has two corresponding slots 12 adapted to the plug-in 6 on the side thereof, and the card plate 11 is connected to the fixing mechanism in conjunction with the slots 12 thereon, the battery body 21 provides power for the bicycle, and the handle 13 facilitates the extraction of the battery body 21.

[0023] See also Figure 1-4 The fixing mechanism is close to two corresponding slots 2 opened on the top surface of the protective shell 1. Two groups of cavities 3 are correspondingly opened between the two slots 2 in the top plate of the protective shell 1. A limit plate 4 is slidably set in each of the cavities 3. A spring 5 is set on one side of the limit plate 4 in each of the cavities 3. A plug-in 6 extending into the adjacent side slot 2 is installed at the center of the other side of each limit plate 4. A central groove 7 is opened between each group of two cavities 3 in the top plate of the protective shell 1. A rotating rod 8 is installed in the two central grooves 7 for common rotation. An end is installed at the center of the side of each limit plate 4. A pull rope 9 extends to the corresponding central groove 7 and is fixed to the rotating rod 8. One end of the rotating rod 8 extends to the outside of the protective shell 1 and is installed with a knob 10. When the battery body 21 needs to be taken out, the knob 10 is rotated to drive the rotating rod 8 to rotate, thereby winding around four pull ropes 9 connected to it, thereby pulling the four limit plates 4 closer to the rotating rod 8. Each moving limit plate 4 compresses the spring 5 and also drives the plug-in 6 to move out of the slot 12 and into the cavity 3, until all four plug-ins 6 are moved out of the slot 12, the fixation of the battery body 21 can be released, and then the battery body 21 can be pulled out of the protective shell 1 through the handle 13.

[0024] The working principle of the utility model is as follows: when charging the battery body 21, the running blower 20 injects gas into the shunt pipe 15 through the connecting pipe 19, and the gas enters each cooling channel pipe 16 after being shunted by the shunt pipe 15, and finally flows out from the end of each cooling channel pipe 16, so that the gas circulates in the cooling channel pipe 16, and the heat generated when the battery body 21 is charged is transferred to the graphene plate 14, and then the graphene plate 14 exchanges heat with the gas flowing in each cooling channel pipe 16, and the heat is discharged with the gas, which plays a role in heat dissipation. Since each cooling channel pipe 16 is vertical and has no bends, instead of the previous winding and rugged shape, it is avoided that the winding design increases the resistance of the fluid passing through the flow channel, resulting in an increase in the energy loss of the gas flow, thereby reducing the cooling efficiency. At the same time, the vertical cooling channel pipe 16 makes the gas flow more uniform;

[0025] The device is installed horizontally so that the external port of the cooling channel tube 16 is aligned with the direction of the bicycle. When the bicycle is running, the solenoid valve 18 is opened, and the gas enters the cooling channel tube 16 through the openings of each cooling channel tube 16 during the running process. When the gas flows in the cooling channel tube 16, it also exchanges heat with the graphene plate 14 receiving the heat transferred by the battery body 21 through the above operation. After that, the gas is collected in the shunt tube 15 and discharged through the outlet pipe 17, so that the discharged battery body 21 can also be cooled during the running process.

[0026] When the battery body 21 needs to be taken out, the rotating knob 10 drives the rotating rod 8 to rotate, thereby winding the four pull ropes 9 connected thereto, thereby pulling the four limit plates 4 closer to the rotating rod 8. Each moving limit plate 4 compresses the spring 5 and also drives the plug-in 6 to move out of the slot 12 and into the cavity 3 until all four plug-ins 6 are moved out of the slot 12, and the fixation of the battery body 21 can be released. Then, the battery body 21 can be pulled out of the protective shell 1 through the handle 13. During installation, the rotating knob 10 allows the four plug-ins 6 to enter the cavity 3 through the above operation, and the battery body 21 is inserted into the protective shell 1, and the two card plates 11 are respectively inserted into the two card slots 2. When the battery body 21 is completely entered into the protective shell 1, each plug-in 6 is aligned with the corresponding slot 12. Then, the knob 10 is released to allow the four springs 5 ​​to rebound and drive the limit plate 4 to restore its position, thereby driving the four plug-ins 6 to be inserted into the corresponding slots 12, and re-fixing the battery body 21.

Claims

1. A bicycle battery pack, characterized in that: The invention comprises a rectangular protective shell (1) with an opening at one end, a cooling mechanism being arranged inside the protective shell (1), a battery mechanism being arranged on the cooling mechanism inside the protective shell (1), a fixing mechanism being arranged inside the top plate of the protective shell (1), the cooling mechanism comprising a graphene plate (14) mounted on the bottom surface of the inner side of the protective shell (1), a plurality of evenly distributed cooling channel pipes (16) being mounted on the graphene plate (14), and the ends of all the cooling channel pipes (16) being mounted together inside the graphene plate (14). A shunt pipe (15) is provided, the other end of each cooling channel pipe (16) extends to the outside of the protective shell (1), a blower (20) is installed on the side of the protective shell (1), and a connecting pipe (19) is installed at the output end of the blower (20) and passes through the side of the protective shell (1) and extends into the graphene plate (14) and is connected to the shunt pipe (15). An air outlet pipe (17) extending to the outside of the graphene plate (14) is installed on the side of the shunt pipe (15), and a solenoid valve (18) is arranged on the air outlet pipe (17).

2. A bicycle battery pack according to claim 1, characterized in that: The fixing mechanism is close to two corresponding slots (2) opened on the top surface of the protective shell (1); two groups of cavities (3) are opened in the top plate of the protective shell (1) between the two slots (2); a limit plate (4) is slidably arranged in each of the cavities (3); a spring (5) is arranged on one side of the limit plate (4) in each of the cavities (3); and a plug-in (6) extending into the adjacent side slot (2) is installed at the center of the other side of each limit plate (4).

3. A bicycle battery pack according to claim 2, characterized in that: A central groove (7) is provided inside the top plate of the protective shell (1) between each group of two cavities (3), and a rotating rod (8) is installed in the two central grooves (7) for common rotation. A pull rope (9) is installed at the center of the side of each limiting plate (4), and the end of the pull rope extends into the corresponding central groove (7) and is fixed to the rotating rod (8). One end of the rotating rod (8) extends to the outside of the protective shell (1) and is installed with a knob (10).

4. A bicycle battery pack according to claim 2, characterized in that: The battery mechanism comprises a battery main body (21) which is arranged in a protective shell (1) and is located on the upper surface of a graphene plate (14); a handle (13) is installed on the side of the battery main body (21).

5. A bicycle battery pack according to claim 4, characterized in that: Each of the card slots (2) is provided with a card plate (11) adapted thereto and having a lower surface fixedly connected to the battery body (21), and each of the card plates (11) is provided with two slots (12) adapted to the plug-in (6) on the side surface thereof.

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