Electric motorcycle with efficient heat dissipation battery assembly

By designing the return air tank and ventilation port on the outer protective case of the electric motorcycle battery pack and combining with the filter plate, the problem of insufficient heat dissipation of the electric motorcycle battery is solved, efficient heat dissipation and protection are achieved, battery life is extended, and safety and handling are improved.

CN223245700UActive Publication Date: 2025-08-19ZHEJIANG CHIHUI VEHICLE CO LTD
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Patent Information

Application Number
CN202422361782.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-27
Publication Date
2025-08-19
Estimated Expiration
2034-09-27

AI Technical Summary

Technical Problem

The battery of electric motorcycles generates a lot of heat during use, and the traditional heat dissipation method has limited effect, which affects the battery life and poses safety hazards.

Method used

An external protective case of the battery pack with a return air tank and multiple vents is designed. Combined with a filter plate and a protective plate, it realizes through-type ventilation and heat dissipation, and provides a cover function when not in use, so the filter plate can be replaced easily.

Benefits of technology

Effectively take away battery heat, prevent external debris from entering, extend battery life, and improve safety and control convenience.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of electric motorcycles, in particular to an electric motorcycle with an efficient heat dissipation battery pack, which comprises an electric motorcycle frame, a battery mounting rack and a battery pack outer protective shell, the top of the battery mounting rack is fixedly connected with the battery pack outer protective shell, and one end of the battery pack outer protective shell is provided with an air return groove. An air return groove is formed in the rear end of the battery pack outer protective shell, a plurality of groups of first ventilation openings are formed in the air return groove, a plurality of groups of second ventilation openings are formed in the rear end of the battery pack outer protective shell, two groups of fixing plates are arranged in the battery pack outer protective shell, filter plates are inserted into the two groups of fixing plates, and the two groups of filter plates are attached to the first ventilation openings and the second ventilation openings respectively. According to the utility model, a better through-type ventilation and heat dissipation function can be provided for the battery pack, a sealing and covering function can be provided for the heat dissipation holes, a better protection function is provided for the interior of the battery outer protection shell, and in addition, a more convenient detachable filter screen is provided for the ventilation opening of the battery outer protection shell.
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Description

Technical Field

[0001] The utility model relates to the field of electric motorcycles, in particular to an electric motorcycle with a high-efficiency heat dissipation battery assembly. Background Art

[0002] Electric motorcycles, as a type of motor vehicle, are vehicles that use batteries to drive motors. Based on the maximum speed or motor power, electric motorcycles are mainly divided into electric mopeds and electric ordinary motorcycles.

[0003] The inventors of this application have found the following problems in practical use:

[0004] However, when an electric motorcycle is in use, the battery generates a lot of heat. Since the battery is flammable and explosive, it needs to be protected by a casing to ensure good safety during use. When using traditional electric motorcycles, they usually still use concave and convex ribs set in the protective casing to provide heat dissipation for the battery, but the heat dissipation effect is limited, which affects the battery life and causes certain hazards.

[0005] Therefore, it is necessary to provide an electric motorcycle with an efficient heat dissipation battery assembly to solve the above technical problems. Utility Model Content

[0006] The utility model can provide a better through-type ventilation and heat dissipation function for the battery pack, and at the same time, can provide a covering function for the heat dissipation holes when the electric motorcycle is not in use, thereby providing a better protection function for the interior of the battery outer protective shell. In addition, a more convenient disassembly filter is provided for the ventilation opening of the battery outer protective shell, thereby providing an electric motorcycle with a high-efficiency heat dissipation battery assembly.

[0007] To achieve the above-mentioned purpose, the technical solution of the present utility model is: an electric motorcycle with an efficient heat dissipation battery assembly, comprising an electric motorcycle frame, a battery mounting frame and a battery pack outer protective shell, the top of the battery mounting frame is fixedly connected to the battery pack outer protective shell, one end of the battery pack outer protective shell is provided with a return air groove, and the interior of the return air groove is provided with several groups of first vents, the rear end of the battery pack outer protective shell is provided with several groups of second vents, and two groups of fixing plates are provided inside the battery pack outer protective shell, the interior of the two groups of the fixing plates are plugged with filter plates, and the two groups of filter plates are respectively fitted with the first vents and the second vents.

[0008] By adopting the above technical solution, the battery mounting rack is used to provide a stable installation space for the outer protective shell of the battery pack, the outer protective shell of the battery pack is used to protect the electric motorcycle battery pack, the first vent and the second vent are used to transport the air source to the inside of the outer protective shell of the battery pack, the two sets of fixing plates are used to provide a snap-fitting and fixing function for the filter plate, and the filter plate is used to filter dust and impurities from the air source entering the outer protective shell of the battery pack.

[0009] It is further provided that two sets of electric motorcycle tires are provided at both ends of the bottom of the electric motorcycle frame, and electric motorcycle handlebars are provided on both sides of the top of the electric motorcycle frame, and electric motorcycle brake assemblies are installed on the outer sides of the two sets of electric motorcycle handlebars.

[0010] By adopting the above technical solution, two sets of electric motorcycle tires are arranged at both ends of the bottom of the electric motorcycle frame, which provides stable support and driving ability for the electric motorcycle. Electric motorcycle handlebars are arranged on both sides of the top of the electric motorcycle frame, and the handlebars are equipped with an electric motorcycle brake assembly. This design significantly improves the driver's convenience and safety in controlling the electric motorcycle.

[0011] It is further provided that an electric motorcycle seat is installed at the top rear end of the electric motorcycle frame, and a battery mounting rack is fixed inside the electric motorcycle frame.

[0012] By adopting the above technical solution, an electric motorcycle seat is installed at the top rear end of the electric motorcycle frame, providing the driver with a comfortable riding experience. The battery mounting frame is used to be fixedly connected to the outer protective shell of the battery pack, thereby ensuring the stability of the outer protective shell of the battery pack.

[0013] It is further configured that both ends of the battery pack outer protective shell are connected to a first protective plate and a second protective plate through a torsion shaft, and an electric motorcycle battery pack is installed inside the battery pack outer protective shell and is electrically connected to an external drive device.

[0014] By adopting the above technical solution, the first protective plate and the second protective plate are connected by a torsion shaft at both ends of the battery pack outer protective shell, so that it can provide protection functions for the first vent and the second vent respectively. When the first protective plate and the second protective plate are opened, the first vent and the second vent can be ventilated. The electric motorcycle battery pack is used to provide power for the drive device of the electric motorcycle.

[0015] It is further configured that two groups of first torsion support rods are fixed on both sides of one end of the battery pack outer protective shell close to the first vent, and the top end of the first torsion support rod is fixedly connected to the first protective plate, and two groups of second torsion support rods are fixed on both sides of one end of the battery pack outer protective shell close to the second vent, and the top end of the second torsion support rod is fixedly connected to the second protective plate.

[0016] By adopting the above technical solution, the first torsion support rod and the second torsion support rod provide stable support functions for the first protective plate and the second protective plate respectively.

[0017] It is further provided that a snap-on is provided at the top of one end of the battery pack outer protective shell near the first vent, and a protective cover is connected to the top of the battery pack outer protective shell near the second vent through a torsion shaft, and a spring card is fixed at one end of the protective cover and engages with the snap-on.

[0018] By adopting the above technical solution, the protective cover can be stably closed on the top of the outer protective shell of the battery pack through the spring card and the bayonet.

[0019] It is further provided that outer ends of the first protection plate and the second protection plate are both chamfered.

[0020] By adopting the above technical solution and chamfering the outer ends of the first protective plate and the second protective plate, this design significantly improves the smoothness of the edges of the protective plates, thereby protecting the skin of the driver or operator from being scratched when the plates are bent and rotated.

[0021] It is further provided that the interior of the return air slot is a "U"-shaped slot structure, which is used to allow the through air to better flow back into the interior of the first vent.

[0022] By adopting the above technical solution, by designing the interior of the return air trough into a "U"-shaped trough structure, the flow path of the wind is effectively guided, so that the wind source can enter the interior of the first vent better and more concentratedly, thereby improving the ventilation efficiency.

[0023] Compared with related technologies, the electric motorcycle with a high-efficiency heat dissipation battery assembly provided by the present invention has the following beneficial effects:

[0024] The utility model provides an electric motorcycle with an efficient heat dissipation battery assembly. By arranging a first vent and a second vent, the interior of an outer protective shell of the battery pack can be ventilated and dissipated through the electric motorcycle during driving, thereby dissipating heat from the electric motorcycle battery pack inside the outer protective shell of the battery pack.

[0025] The utility model provides an electric motorcycle with an efficient heat dissipation battery assembly. By arranging a first protective plate and a second protective plate, a shielding function can be provided for the first vent and the second vent below the first protective plate, thereby preventing foreign matter from entering the interior of the battery pack outer protective shell when the electric motorcycle is not in use.

[0026] The utility model provides an electric motorcycle with a high-efficiency heat dissipation battery assembly. By arranging a fixing plate, the filter plate can be conveniently plugged into the interior of the fixing plate, and can provide filtering and dust-proof functions for the first vent and the second vent. At the same time, when replacing the filter plate, the operator can directly pull the filter plate out of the interior of the fixing plate for replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0028] Figure 2 This is a schematic diagram of the structure of the first protective plate, the second protective plate and the protective cover of the utility model in a top view in an unfolded state;

[0029] Figure 3 This is a side view of the structure of the first protective plate, the second protective plate and the protective cover of the utility model in an unfolded state;

[0030] Figure 4 For this utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0031] Numbers in the figure: 1. Electric motorcycle frame; 2. Electric motorcycle tire; 3. Electric motorcycle handlebar; 4. Electric motorcycle brake assembly; 5. Electric motorcycle seat; 6. Battery mounting bracket; 71. Battery pack outer protective shell; 72. Return air slot; 73. First vent; 74. Second vent; 75. First protective plate; 76. First torsion support rod; 77. Second protective plate; 78. Second torsion support rod; 79. Bayonet; 710. Protective cover; 711. Spring card; 8. Electric motorcycle battery pack; 91. Fixing plate; 92. Filter plate. DETAILED DESCRIPTION

[0032] In order to facilitate the understanding of the present invention, the present invention will be described in more detail below with reference to the accompanying drawings, in which typical embodiments of the present invention are shown.

[0033] In this embodiment:

[0034] like Figure 1-Figure 4As shown, the electric motorcycle with a high-efficiency heat dissipation battery assembly of the present invention includes an electric motorcycle frame 1, a battery mounting frame 6 and a battery pack outer protective shell 71. The top of the battery mounting frame 6 is fixedly connected to the battery pack outer protective shell 71. One end of the battery pack outer protective shell 71 is provided with a return air slot 72, and the return air slot 72 is provided with a plurality of groups of first vents 73 inside. The rear end of the battery pack outer protective shell 71 is provided with a plurality of groups of second vents 74. Two groups of fixing plates 91 are provided inside the battery pack outer protective shell 71. Filter plates 92 are inserted into the interiors of the two groups of fixing plates 91, and the two groups of filter plates 92 are respectively fitted with the first vents 73 and the second vents 74.

[0035] Among them, the battery pack outer protective shell 71 is fixedly connected to the top of the battery mounting frame 6, ensuring that the battery pack is firmly installed on the electric motorcycle frame 1, effectively preventing the battery pack from being damaged due to vibration or collision, and a return air slot 72 and a plurality of first vents 73 are provided at one end of the battery pack outer protective shell 71, and a plurality of second vents 74 are provided at the rear end, so that no matter whether riding against the wind or with the wind, the wind can smoothly enter the interior of the protective shell through the vents and take away the heat generated by the battery pack. Filter plates 92 are inserted into the two sets of fixing plates 91, which fit tightly at the first vents 73 and the second vents 74, and can effectively filter dust and impurities in the air entering the protective shell.

[0036] like Figure 1 As shown, two sets of electric motorcycle tires 2 are provided at both ends of the bottom of the electric motorcycle frame 1, and electric motorcycle handlebars 3 are provided on both sides of the top of the electric motorcycle frame 1, and electric motorcycle brake assemblies 4 are installed on the outer sides of the two sets of electric motorcycle handlebars 3;

[0037] Among them, the electric motorcycle tire 2 is the part that directly contacts the ground, and its quality and design have a crucial impact on the vehicle's controllability, driving stability and safety. The electric motorcycle handlebar 3 is the main component for the driver to control the direction of the vehicle. The rationality of its position and design directly affects the driving comfort and control accuracy. The electric motorcycle brake assembly 4 is a key braking component. It is installed on the outside of the handlebar to facilitate the driver to quickly and accurately implement braking operations in an emergency, thereby effectively avoiding potential safety risks and ensuring the safety of the driver and pedestrians.

[0038] like Figure 1 As shown, an electric motorcycle seat 5 is installed at the top rear end of the electric motorcycle frame 1, and a battery mounting frame 6 is fixed inside the electric motorcycle frame 1;

[0039] Among them, the electric motorcycle seat cushion 5 can effectively reduce the pressure on the driver's buttocks and back caused by long-term riding and reduce fatigue. At the same time, the material of the electric motorcycle seat cushion 5 has good air permeability and wear resistance, ensuring that it can remain dry and comfortable under different climatic conditions, thereby improving the overall user experience of the electric motorcycle. The battery mounting bracket 6 can ensure that the battery pack outer protective shell 71 and its internal components will not be displaced or damaged due to vibration or impact during driving.

[0040] like Figure 1 、 Figure 2 and Figure 3 As shown, both ends of the battery pack outer protective shell 71 are connected to the first protective plate 75 and the second protective plate 77 through a torsion shaft, and the electric motorcycle battery pack 8 is installed inside the battery pack outer protective shell 71 and is electrically connected to the external drive device;

[0041] Among them, the driver can easily open the first protective plate 75 and the second protective plate 77 by operating the torque shaft to ensure that the vents are unobstructed so that wind can smoothly enter the battery pack outer protective shell 71 and take away the heat generated by the battery. The electric motorcycle battery pack 8 is installed inside the battery pack outer protective shell 71 and is electrically connected to the external drive device, so that the electric motorcycle battery pack 8 can efficiently provide power to the drive device of the electric motorcycle.

[0042] like Figure 2 and Figure 3 As shown, two sets of first torsion support rods 76 are fixed on both sides of one end of the battery pack outer protective shell 71 near the first vent 73, and the top ends of the first torsion support rods 76 are fixedly connected to the first protective plate 75. Two sets of second torsion support rods 78 are fixed on both sides of one end of the battery pack outer protective shell 71 near the second vent 74, and the top ends of the second torsion support rods 78 are fixedly connected to the second protective plate 77.

[0043] Among them, the first torsion support rod 76 and the second torsion support rod 78 not only provide stable support for the first protective plate 75 and the second protective plate 77 respectively, but also provide necessary torque when the protective plates are opened or closed, making the operation smoother and more reliable.

[0044] like Figure 2 and Figure 3 As shown, a bayonet 79 is provided at the top of the battery pack outer protective shell 71 near the first vent 73, and a protective cover 710 is connected to the top of the battery pack outer protective shell 71 near the second vent 74 via a torsion shaft. A spring clip 711 is fixed to one end of the protective cover 710 and engages with the bayonet 79.

[0045] Among them, when it is necessary to replace the filter plate 92 inside the battery pack outer protective shell 71, the spring card 711 can be squeezed to release the engagement with the bayonet 79, so that the protective cover 710 can be rotated through the torque shaft to separate and open the battery pack outer protective shell 71.

[0046] like Figure 1 、 Figure 2 and Figure 3 As shown, the outer ends of the first protection plate 75 and the second protection plate 77 are both chamfered;

[0047] During riding or maintenance, the driver or operator will inevitably come into contact with the edges of the first protective plate 75 and the second protective plate 77. The chamfered edges are more rounded, thereby effectively reducing the risk of scratches or bumps caused by sharp edges.

[0048] like Figure 2 and Figure 3 As shown, the interior of the return air slot 72 is a "U"-shaped slot structure, which is used to allow the through air to better flow back into the interior of the first vent 73;

[0049] Among them, the design of the "U"-shaped groove structure also enhances the heat exchange effect between the wind and the battery pack, and can quickly take away the heat generated by the battery, which not only extends the service life of the battery, but also improves the overall performance and safety of the electric motorcycle.

[0050] During the implementation, first, when riding is required, the first protection plate 75 and the second protection plate 77 are lowered for support by the first torsion support rod 76 and the second torsion support rod 78, so that the first vent 73 and the second vent 74 are exposed;

[0051] When riding against the wind, the headwind will enter the plurality of first vents 73 through the return air slots 72 opened at the front end of the battery pack outer protective shell 71, and be discharged into the internal space of the battery pack outer protective shell 71 through the plurality of first vents 73. The interior of the return air slots 72 is a "U"-shaped slot, which can make the headwind reflux better and thus enter the first vents 73 better. After the headwind enters the battery pack outer protective shell 71 through the first vents 73, it will first pass through a group of filter plates 92 for filtering, so that dust, impurities and other substances are adsorbed on the filter plates 92, so that the clean headwind can pass through the interior of the battery pack outer protective shell 71 and take out the heat emitted by the electric motorcycle battery pack 8 inside the battery pack outer protective shell 71. After the headwind with heat passes through the filter plate 92 at the other end of the battery pack outer protective shell 71, it is discharged to the outside of the rear of the vehicle through the second vents 74.

[0052] When riding in a tailwind state, the tailwind will enter the interior of the battery pack outer protective shell 71 through the second vent 74. When entering the interior of the battery pack outer protective shell 71, it will first pass through a group of filter plates 92 near one end of the second vent 74 for filtering. Then, the tailwind will take away the heat emitted by the electric motorcycle battery pack 8 inside the battery pack outer protective shell 71, pass through a group of filter plates 92 near the first vent 73, and be discharged from the first vent 73.

[0053] When the filter plate 92 needs to be replaced, the spring card 711 is squeezed to release the engagement with the bayonet 79, and the protective cover 710 is opened and closed with the battery pack outer protective shell 71 through the rotating shaft, so that the space inside the battery pack outer protective shell 71 is exposed, and the filter plate 92 is pulled to slide and disassemble it from the fixing plate 91, so that the filter plate 92 can be quickly replaced.

[0054] The advantages of this technical solution in practical applications include but are not limited to the following:

[0055] 1. By providing the first vent 73 and the second vent 74, the heat of the electric motorcycle battery pack 8 inside the battery pack outer protective shell 71 can be removed by penetrating wind during the driving of the electric motorcycle;

[0056] 2. The first protective plate 75 and the second protective plate 77 can prevent foreign matter from entering the interior of the battery pack outer protective shell 71 when the electric motorcycle is not in use;

[0057] 3. By providing the fixing plate 91 , the filter plate 92 can be conveniently plugged into the interior of the fixing plate 91 , thereby making it convenient to disassemble and replace the filter plate 92 .

[0058] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An electric motorcycle with a high-efficiency heat dissipation battery assembly, comprising an electric motorcycle frame (1), a battery mounting frame (6), and a battery pack outer protective shell (71); Its characteristics are: The top of the battery mounting frame (6) is fixedly connected to a battery pack outer protective shell (71), one end of the battery pack outer protective shell (71) is provided with a return air slot (72), and the interior of the return air slot (72) is provided with a plurality of first vents (73), the rear end of the battery pack outer protective shell (71) is provided with a plurality of second vents (74), and two groups of fixing plates (91) are provided inside the battery pack outer protective shell (71), the interiors of the two groups of fixing plates (91) are plugged with filter plates (92), and the two groups of filter plates (92) are respectively fitted with the first vents (73) and the second vents (74).

2. The electric motorcycle with a high-efficiency heat dissipation battery assembly according to claim 1, characterized in that: Two sets of electric motorcycle tires (2) are provided at both ends of the bottom of the electric motorcycle frame (1), and electric motorcycle handlebars (3) are provided on both sides of the top of the electric motorcycle frame (1), and electric motorcycle brake assemblies (4) are installed on the outer sides of the two sets of electric motorcycle handlebars (3).

3. The electric motorcycle with a high-efficiency heat dissipation battery assembly according to claim 1, characterized in that: An electric motorcycle seat cushion (5) is installed at the top rear end of the electric motorcycle frame (1), and a battery mounting frame (6) is fixed inside the electric motorcycle frame (1).

4. The electric motorcycle with a high-efficiency heat dissipation battery assembly according to claim 1, characterized in that: Both ends of the battery pack outer protective shell (71) are connected to a first protective plate (75) and a second protective plate (77) via a torsion shaft, and an electric motorcycle battery pack (8) is installed inside the battery pack outer protective shell (71) and is electrically connected to an external drive device.

5. The electric motorcycle with a high-efficiency heat dissipation battery assembly according to claim 1, characterized in that: Two groups of first torsion support rods (76) are fixed on both sides of one end of the battery pack outer protective shell (71) close to the first vent (73), and the top ends of the first torsion support rods (76) are fixedly connected to the first protective plate (75); two groups of second torsion support rods (78) are fixed on both sides of one end of the battery pack outer protective shell (71) close to the second vent (74), and the top ends of the second torsion support rods (78) are fixedly connected to the second protective plate (77).

6. The electric motorcycle with a high-efficiency heat dissipation battery assembly according to claim 1, characterized in that: A snap-on (79) is provided at the top of one end of the battery pack outer protective shell (71) close to the first vent (73), and a protective cover (710) is connected to the top of the battery pack outer protective shell (71) close to the second vent (74) via a torsion shaft. A spring clip (711) is fixed to one end of the protective cover (710) and engages with the snap-on (79).

7. The electric motorcycle with a high-efficiency heat dissipation battery assembly according to claim 4, characterized in that: The outer ends of the first protection plate (75) and the second protection plate (77) are both chamfered.

8. The electric motorcycle with a high-efficiency heat dissipation battery assembly according to claim 1, characterized in that: The interior of the return air slot (72) is a "U"-shaped slot structure, which is used to allow the through air to flow back into the interior of the first vent (73) in a better manner.