Battery tube of electric bicycle
By setting a cavity and a heat dissipation fan in the beam of the electric bicycle, the problem of poor heat dissipation of the battery is solved, the heat dissipation effect and safety of the battery are improved, and the waterproof performance of the battery is enhanced.
Patent Information
- Application Number
- CN202422583032.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-24
- Publication Date
- 2025-08-22
- Estimated Expiration
- 2034-10-24
AI Technical Summary
Traditional electric bicycle batteries dissipate poorly in a narrow space, resulting in overheating, reduced battery life or damage to the battery, and the battery is not beautifully installed and easily stolen.
The battery is set in the cavity of the vehicle beam, the outer peripheral wall wraps the heat sink, and a heat dissipation fan is set in the cavity. The heat dissipation fan is used to exchange the cold air through the heat dissipation hole and the air outlet hole to achieve efficient heat dissipation.
It improves the heat dissipation effect of the battery, enhances the safety of the battery and waterproof performance, prevents rainwater and dust from entering, and extends battery life.
Smart Images

Figure CN223253163U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electric bicycles, in particular to a battery tube for electric bicycles. Background Art
[0002] Electric bicycles, also known as electric power-assisted bicycles, are widely used for short-distance travel due to their lightness, compactness, and ease of riding. Traditionally, the battery in an electric bicycle is mounted beneath the seat, making it easily removable and preventing theft while the bicycle is parked. However, this battery placement results in an unsightly appearance, and frequent battery removal can also impact battery life and mounting stability.
[0003] To address this, the company developed a battery mounting structure that mounts the battery on the e-bike's beam. While this effectively addresses the risk of battery theft when the e-bike is parked, the heat generated by the battery during operation cannot be dissipated within the confined space of the beam, which can easily lead to overheating, reduced battery life, or even damage to the battery.
[0004] Therefore, it is urgent to research and develop an electric bicycle battery tube to solve the above technical problems. Summary of the Invention
[0005] The utility model aims to provide an electric bicycle battery tube, which can improve the heat dissipation effect of the battery and thus improve the safety of the battery.
[0006] In order to achieve the above-mentioned purpose, the utility model provides an electric bicycle battery tube, the specific implementation scheme is as follows:
[0007] A battery tube for an electric bicycle comprises a beam, a cavity within the beam, a mounting slot within the cavity, a battery within the mounting slot, a heat dissipation duct formed between at least one outer wall of the battery and a wall of the mounting slot, the heat dissipation duct communicating with the cavity;
[0008] A heat sink is wrapped on the outer peripheral wall of the battery, a heat dissipation fan is provided in the cavity, the air outlet of the heat dissipation fan faces the heat dissipation air duct, and heat dissipation holes and air outlet holes connected to the cavity are provided on the outer wall of the beam.
[0009] Compared with the prior art, the utility model discloses an electric bicycle battery tube. The battery is arranged in a mounting groove in the cavity of the vehicle beam, and the outer peripheral wall of the battery is wrapped with a heat sink to achieve heat dissipation of the battery. A heat dissipation fan is then arranged in the cavity, and heat dissipation holes are provided on the vehicle beam. The heat dissipation fan is used to suck external cold air from the heat dissipation holes, blow it into the heat dissipation air duct to exchange heat with the battery, and then send it out from the air outlet, thereby further improving the heat dissipation performance of the battery, improving the heat dissipation effect of the battery, and thus improving the safety of the battery.
[0010] In some embodiments, the vehicle beam includes a first shell and a second shell, the first shell and the second shell are connected to form the cavity, and the heat dissipation holes and air outlet holes are provided on the first shell and / or the second shell.
[0011] The vehicle beam is configured as a first shell and a second shell that are connected to each other so that the vehicle beam can be disassembled to improve the convenience of maintaining or replacing the battery, the cooling fan and the cooling fins inside the cavity.
[0012] In some embodiments, a plurality of plates are provided on the first shell or the second shell, and the plurality of plates are arranged around the mounting groove, and a second sealing strip is provided at the top of the mounting groove, and a second sealing groove is provided on the inner wall of the second shell or the first shell; or a second sealing strip is provided at the top of the mounting groove, and a second sealing strip is provided on the inner wall of the second shell or the first shell, and when the first shell and the second shell are connected, the second sealing strip is embedded in the second sealing groove and interference fits with the second sealing groove.
[0013] The installation groove is sealed by adopting the interference fit of the second sealing strip and the second sealing groove, thereby improving the waterproof performance of the installation groove and improving the safety of the battery.
[0014] In some embodiments, a first sealing strip is embedded in the first shell, and a first sealing groove is provided in the second shell; or a first sealing groove is provided in the first shell, and a first sealing strip is embedded in the second shell. When the first shell and the second shell are connected, the first sealing strip is embedded in the first sealing groove and has an interference fit with the first sealing groove.
[0015] The sealing of the connection between the first shell and the second shell is achieved by adopting the interference fit between the first sealing strip and the first sealing groove, thereby improving the waterproof performance of the vehicle beam and thus improving the safety of the battery.
[0016] In some embodiments, a plurality of first connecting ears are provided on the first shell, and a second connecting ear corresponding to the first connecting ear is provided on the second shell. A connecting screw passing through the first connecting ear and the second connecting ear is also included, and a locking nut is sleeved on the connecting screw.
[0017] The connection between the first shell and the second shell is achieved by adopting a connecting screw and a locking nut, thereby improving the connection stability and the convenience of disassembly and assembly of the first shell and the second shell.
[0018] In some embodiments, rain covers are provided on the outer wall of the beam at positions corresponding to the heat dissipation holes and the air outlet holes, and an opening is provided at the bottom of the rain cover, which is connected to the heat dissipation holes or the air outlet holes.
[0019] By arranging a rainproof cover on the vehicle beam and arranging the heat dissipation hole or air outlet hole cover inside the rainproof cover, the waterproof performance of the heat dissipation hole and the air outlet hole is improved, rainwater is prevented from entering the cavity and damaging the battery, and the safety of the battery is improved.
[0020] In some embodiments, the rain cover is integrally formed with the vehicle beam.
[0021] The structural stability of the rain cover is improved by forming the rain cover into one piece with the vehicle beam.
[0022] In some embodiments, a dustproof net is provided at the opening position, and the outer peripheral wall of the dustproof net is bonded to the rainproof cover by waterproof glue to shield the opening.
[0023] A dustproof net bonded with waterproof glue and a rainproof cover is provided at the opening to prevent dust from entering the cavity and affecting the heat dissipation effect of the battery.
[0024] Based on the above technical solution, the present invention has the following beneficial effects compared with the prior art:
[0025] By placing the battery in a mounting groove in the cavity of the vehicle beam and wrapping the outer peripheral wall of the battery with heat sinks, the heat dissipation of the battery is achieved. Then, a heat dissipation fan is arranged in the cavity and heat dissipation holes are provided on the vehicle beam. The heat dissipation fan is used to suck in external cold air from the heat dissipation holes, blow it into the heat dissipation air duct for heat exchange with the battery, and then send it out from the air outlet, thereby further improving the heat dissipation performance of the battery, improving the heat dissipation effect of the battery, and thus improving the safety of battery use. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 It is a structural diagram of the utility model;
[0027] Figure 2 Decomposition of the utility model Figure 1 ;
[0028] Figure 3 Decomposition of the utility model Figure 2
[0029] Description of reference numerals:
[0030] 100, vehicle beam; 110, first shell; 111, first connecting ear; 120, second shell; 121, second connecting ear; 130, heat dissipation hole; 140, air outlet; 150, cavity; 151, plate; 152, mounting slot; 160, rain cover; 170, opening; 200, battery; 210, heat dissipation duct; 220, heat sink; 300, heat dissipation fan. DETAILED DESCRIPTION
[0031] In order to facilitate the understanding of the present invention, specific embodiments of the present invention will be described in more detail below with reference to the accompanying drawings.
[0032] Unless otherwise specified or defined, the "first, second..." used in this article is only used to distinguish names and does not represent a specific quantity or order.
[0033] Unless stated otherwise or defined otherwise, the term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0034] It should be noted that, in this document, “fixed to” or “connected to” may mean directly fixing or connecting to an element, or indirectly fixing or connecting to an element.
[0035] like Figure 1-3 As shown, the present embodiment provides an electric bicycle battery tube, including a beam 100, wherein a cavity 150 is formed in the beam 100, a mounting slot 152 is provided in the cavity 150, a battery 200 is provided in the mounting slot 152, and a heat dissipation duct 210 is formed between at least one outer wall of the battery 200 and the groove wall of the mounting slot 152, and the heat dissipation duct 210 is connected to the cavity 150;
[0036] A heat sink 220 is wrapped around the outer wall of the battery 200, a heat dissipation fan 300 is provided in the cavity 150, and the air outlet of the heat dissipation fan 300 faces the heat dissipation duct 210. A heat dissipation hole 130 and an air outlet 140 that are connected to the cavity 150 are provided on the outer wall of the vehicle beam 100.
[0037] In some embodiments, the vehicle beam 100 includes a first shell 110 and a second shell 120 , the first shell 110 and the second shell 120 are connected to form the cavity 150 , and the heat dissipation holes 130 and the air outlet holes 140 are provided on the first shell 110 and / or the second shell 120 .
[0038] By configuring the vehicle beam 100 as a first shell 110 and a second shell 120 connected to each other, the vehicle beam 100 can be disassembled to improve the convenience of maintaining or replacing the battery 200, the cooling fan 300, and the heat sink 220 inside the cavity 150.
[0039] In some embodiments, a plurality of plates 151 are provided on the first shell 110 or the second shell 120, and the plurality of plates 151 are arranged around the mounting groove 152, and a second sealing strip is provided at the top of the mounting groove 152, and a second sealing groove is provided on the inner wall of the second shell 120 or the first shell 110; or a second sealing strip is provided at the top of the mounting groove 152, and a second sealing strip is provided on the inner wall of the second shell 120 or the first shell 110, and when the first shell 110 and the second shell 120 are connected, the second sealing strip is embedded in the second sealing groove and interference fits with the second sealing groove.
[0040] The installation groove 152 is sealed by adopting the interference fit of the second sealing strip and the second sealing groove, thereby improving the waterproof performance of the installation groove 152 and improving the safety of the battery 200.
[0041] In some embodiments, a first sealing strip is embedded in the first shell 110, and a first sealing groove is provided in the second shell 120; or a first sealing groove is provided in the first shell 110, and a first sealing strip is embedded in the second shell 120. When the first shell 110 and the second shell 120 are connected, the first sealing strip is embedded in the first sealing groove and is interference fit with the first sealing groove.
[0042] The interference fit between the first sealing strip and the first sealing groove is used to achieve sealing at the connection between the first shell 110 and the second shell 120 , thereby improving the waterproof performance of the vehicle beam 100 and thus improving the safety of the battery 200 .
[0043] In some embodiments, a plurality of first connecting ears 111 are provided on the first shell 110, and a second connecting ear 121 corresponding to the first connecting ear 111 is provided on the second shell 120. A connecting screw passing through the first connecting ear 111 and the second connecting ear 121 is also included, and a locking nut is sleeved on the connecting screw.
[0044] The first shell 110 and the second shell 120 are connected by using a connecting screw and a locking nut, thereby improving the connection stability and the convenience of assembly and disassembly of the first shell 110 and the second shell 120.
[0045] In some embodiments, a rain cover 160 is provided on the outer wall of the vehicle beam 100 at positions corresponding to the heat dissipation holes 130 and the air outlet holes 140 , and an opening 170 is provided at the bottom of the rain cover 160 , and the opening 170 is connected to the heat dissipation holes 130 or the air outlet holes 140 .
[0046] By setting a rainproof cover 160 on the vehicle beam 100, the heat dissipation holes 130 or the air outlet holes 140 are covered inside the rainproof cover 160, thereby improving the waterproof performance of the heat dissipation holes 130 and the air outlet holes 140, preventing rainwater from entering the cavity 150 to damage the battery 200, and improving the safety of the battery 200.
[0047] In some embodiments, the rain cover 160 is integrally formed with the vehicle beam 100 .
[0048] By forming the rain cover 160 integrally with the vehicle beam 100 , the structural stability of the rain cover 160 is improved.
[0049] In some embodiments, a dustproof net is provided at the position of the opening 170 , and the outer peripheral wall of the dustproof net is bonded to the rain cover 160 by waterproof glue to cover the opening 170 .
[0050] A dustproof net bonded to the rain cover 160 by waterproof glue is provided at the opening 170 to prevent dust from entering the cavity 150 and affecting the heat dissipation effect of the battery 200 .
[0051] Compared with the prior art, the electric bicycle battery tube provided in this embodiment achieves heat dissipation of the battery 200 by disposing the battery 200 in the mounting groove 152 in the cavity 150 of the beam 100 and wrapping the outer peripheral wall of the battery 200 with a heat sink 220. Then, a heat dissipation fan 300 is disposed in the cavity 150, and heat dissipation holes 130 are provided on the beam 100. The heat dissipation fan 300 draws external cold air from the heat dissipation holes 130, blows it into the heat dissipation duct 210 for heat exchange with the battery 200, and then sends it out from the air outlet 140, thereby further improving the heat dissipation performance of the battery 200, improving the heat dissipation effect of the battery 200, and thereby improving the safety of the battery 200.
[0052] Based on the disclosure and teachings of the above description, those skilled in the art may also make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and any modifications and variations of the present invention should also fall within the scope of protection of the claims of the present invention. In addition, although certain specific terms are used in this description, these terms are for convenience of description only and do not constitute any limitation to the present invention.
Claims
1. An electric bicycle battery tube, characterized in that: The invention comprises a vehicle beam (100), wherein a cavity (150) is provided in the vehicle beam (100), a mounting groove (152) is provided in the cavity (150), a battery (200) is provided in the mounting groove (152), a heat dissipation duct (210) is formed between at least one outer wall of the battery (200) and the groove wall of the mounting groove (152), and the heat dissipation duct (210) is connected to the cavity (150); A heat sink (220) is wrapped around the outer peripheral wall of the battery (200), a heat dissipation fan (300) is provided in the cavity (150), an air outlet of the heat dissipation fan (300) faces the heat dissipation air duct (210), and heat dissipation holes (130) and air outlet holes (140) that communicate with the cavity (150) are provided on the outer wall of the vehicle beam (100).
2. The electric bicycle battery tube according to claim 1, characterized in that: The vehicle beam (100) comprises a first shell (110) and a second shell (120), wherein the first shell (110) and the second shell (120) are connected to form the cavity (150), and the heat dissipation holes (130) and the air outlet holes (140) are provided on the first shell (110) and / or the second shell (120).
3. The electric bicycle battery tube according to claim 2, characterized in that: A plurality of plates (151) are provided on the first shell (110) or the second shell (120), and the plurality of plates (151) are arranged around the installation groove (152), and a second sealing strip is provided at the top of the installation groove (152), and a second sealing groove is provided on the inner wall of the second shell (120) or the first shell (110); or a second sealing strip is provided at the top of the installation groove (152), and a second sealing strip is provided on the inner wall of the second shell (120) or the first shell (110), and when the first shell (110) and the second shell (120) are connected, the second sealing strip is embedded in the second sealing groove and interference fits with the second sealing groove.
4. The electric bicycle battery tube according to claim 2, characterized in that: A first sealing strip is embedded in the first shell (110), and a first sealing groove is provided in the second shell (120); or a first sealing groove is provided in the first shell (110), and a first sealing strip is embedded in the second shell (120); when the first shell (110) and the second shell (120) are connected, the first sealing strip is embedded in the first sealing groove and has an interference fit with the first sealing groove.
5. The electric bicycle battery tube according to claim 2, characterized in that: A plurality of first connecting ears (111) are provided on the first shell (110), and a second connecting ear (121) corresponding to the first connecting ear (111) is provided on the second shell (120). The invention also includes a connecting screw rod passing through the first connecting ear (111) and the second connecting ear (121), and a locking nut is sleeved on the connecting screw rod.
6. The electric bicycle battery tube according to any one of claims 1 to 5, characterized in that: Rain covers (160) are provided on the outer wall of the vehicle beam (100) at positions corresponding to the heat dissipation holes (130) and the air outlet holes (140). An opening (170) is provided at the bottom of the rain cover (160), and the opening (170) is connected to the heat dissipation holes (130) or the air outlet holes (140).
7. The electric bicycle battery tube according to claim 6, characterized in that: The rain cover (160) and the vehicle beam (100) are integrally formed.
8. The electric bicycle battery tube according to claim 6, characterized in that: A dustproof net is provided at the position of the opening (170), and the outer peripheral wall of the dustproof net is bonded to the rainproof cover (160) by waterproof glue to cover the opening (170).