Pipe hidden type battery box for electric bicycle

By incorporating a rotatable handle on the battery box cover and utilizing the combination of an electromagnet and a spring, the problem of reduced waterproofing performance in existing battery boxes has been solved, achieving both convenient handle use and improved waterproofing.

CN223487220UActive Publication Date: 2025-10-28SUZHOU BENJI POWER CO LTD
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Patent Information

Application Number
CN202422805656.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-18
Publication Date
2025-10-28
Estimated Expiration
2034-11-18

AI Technical Summary

Technical Problem

Existing tubular battery boxes lack a dedicated handle for battery replacement, resulting in reduced waterproof performance.

Method used

Design a tube-type battery box. By setting a rotatable handle on the top cover and using the cooperation of electromagnets and springs, the handle can be stably stored and used, avoiding the need to weld the handle directly to the battery box body.

Benefits of technology

The battery box has improved waterproof performance, reduced the space occupied by the handle, and ensured that the handle is stably locked when not in use through the cooperation of electromagnets and springs, making it convenient to take out when needed.

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Abstract

The utility model discloses a tube hidden type battery box for an electric bicycle, which comprises a battery box body, one end of the battery box body is provided with an upper cover, the other end of the battery box body is provided with a lower cover, the lower cover is provided with a power interface, the upper cover is rotatably connected with a lifting handle through a shaft pin, and the upper cover is provided with an accommodating groove for accommodating the lifting handle. The upper cover is provided with a first electromagnet, the first electromagnet magnetically attracts the iron sheet to close the handle, a spring is arranged in the containing groove, one end of the spring is connected with the containing groove, and the other end of the spring is connected with the side, close to the containing groove, of the handle. Through the mode, the waterproof performance can be prevented from being influenced by directly welding the handle on the battery box body.
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Description

Technical Field

[0001] This utility model relates to the field of electric bicycle technology, and in particular to a tube-type battery box for electric bicycles. Background Art

[0002] Shared electric bicycles and e-bikes are personal transportation tools that use electricity as their power source. They have certain advantages in urban travel and short-distance travel. Electric bicycles and e-bikes use batteries as their power source. When changing the battery of a tube-type electric bicycle, the tube-type battery box needs to be removed to replace the battery or charge it. Currently, many tube-type battery boxes do not have a dedicated handle, or the handle is made into the aluminum barrel of the battery box, which reduces the waterproofness of the aluminum barrel of the battery box. Utility Model Content

[0003] The main technical problem solved by this utility model is to provide a tube-type battery box for electric bicycles, which can avoid directly welding the handle to the battery box body and thus affecting the waterproof performance.

[0004] To solve the above-mentioned technical problems, the present invention provides a tubular battery box for electric bicycles, comprising: a battery box body, an upper cover at one end of the battery box body, a lower cover at the other end of the battery box body, a power interface on the lower cover, a handle rotatably connected to the upper cover via a pivot pin, a receiving groove for accommodating the handle on the upper cover, an iron plate at the end of the handle away from the pivot pin, a first electromagnet on the upper cover, the first electromagnet magnetically attracting the iron plate to close the handle, a spring in the receiving groove, one end of the spring connected to the receiving groove, and the other end of the spring connected to the side of the handle near the receiving groove.

[0005] Preferably, a spring groove is provided in the receiving groove, and the end of the spring near the receiving groove abuts against the spring groove.

[0006] Preferably, an electromagnet slot is provided in the receiving groove, a first mounting plate is provided in the electromagnet slot, and the first electromagnet is connected to the first mounting plate.

[0007] Preferably, the top cover has an installation cavity, in which an anti-theft electromagnet and a second mounting plate are installed. The anti-theft electromagnet is connected to the installation cavity of the top cover through the second mounting plate, and the anti-theft electromagnet is magnetically attracted to the tube of the electric bicycle.

[0008] Preferably, both the first electromagnet and the anti-theft electromagnet are connected to the central control system of the electric bicycle, and the central control system controls the magnetic attraction of the first electromagnet and the anti-theft electromagnet.

[0009] Preferably, a front cover is connected to the side of the top cover away from the battery box body. The front cover has a first magnetic clearance hole that cooperates with the anti-theft electromagnet. A frame base is provided on the side of the front cover away from the top cover. The frame base is connected to the frame. The frame base has a second magnetic clearance hole that cooperates with the anti-theft electromagnet. An anti-theft plate is provided on the side of the frame base away from the battery box body.

[0010] The beneficial effects of this utility model are as follows: By installing a cover at one end of the battery box body and providing a handle on the cover, the impact on the battery box's waterproof performance is avoided by directly welding the handle to the battery box body. The handle is rotatably connected and can be stored in the receiving slot of the cover when not in use, thus reducing the space occupied by the handle and improving the battery box's usability. Through the cooperation of the first electromagnet and the spring, the handle is stably locked in the receiving slot when not in use. When the handle is needed, the first electromagnet is de-energized, and the handle extends under the force of the spring for easy use. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0012] Figure 2 This is an exploded view of the present invention;

[0013] Figure 3 yes Figure 2 Enlarged diagram of section A in the middle;

[0014] Figure 4 This is an exploded view of another state of this utility model.

[0015] The components in the attached diagram are labeled as follows:

[0016] 1. Battery box body; 2. Top cover; 3. Bottom cover; 4. Power interface; 5. Shaft pin; 6. Handle; 7. Receiving slot; 8. Iron sheet; 9. First electromagnet; 10. Spring; 11. Electromagnet slot; 12. First mounting plate; 13. Mounting cavity; 14. Anti-theft electromagnet; 15. Second mounting plate; 16. Front cover; 17. Frame base; 18. First magnetic clearance hole; 19. Second magnetic clearance hole; 20. Anti-theft plate. DETAILED DESCRIPTION

[0017] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0018] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0019] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0020] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0021] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0022] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0023] Unless otherwise specified, physical quantities in formulas should be understood as basic quantities of SI base units, or derived quantities derived from basic quantities through mathematical operations such as multiplication, division, differentiation, or integration.

[0024] Example:

[0025] refer to Figures 1-4 A retractable battery box for electric bicycles includes: a battery box body 1 for holding battery cells; a top cover 2 screwed to one end of the battery box body 1 and a bottom cover 3 screwed to the other end of the battery box body 1; a power interface 4 provided on the bottom cover 3; the power interface 4 can be a 10-pin contact for connecting the battery cells to components such as the controller, central control, and charging port; a handle 6 rotatably connected to the top cover 2 via a pivot pin 5, so that one end of the handle 6 is rotatably connected to the top cover 2; the top cover 2 has a receiving groove 7 for accommodating the handle 6; when the handle 6 is not in use, it is stored in the receiving groove 7, thereby reducing space occupation; when the battery box needs to be taken out, it is taken out through the handle 6, thus eliminating the need to weld the handle 6 to the battery box body 1 and affecting the waterproof performance. The end of the handle 6 furthest from the pivot pin 5 is fitted with, welded to, or screwed to an iron plate 8. A first electromagnet 9 is installed on the top cover 2. The first electromagnet 9 is electrically connected to the central control system of the electric bicycle, thereby controlling the first electromagnet 9 to magnetically attract. When the first electromagnet 9 is energized, it magnetically attracts the iron plate 8, locking the handle 6 in the receiving groove 7. A spring 10 is installed in the receiving groove 7. One end of the spring 10 is connected to the receiving groove 7, and the other end of the spring 10 is connected to the side of the handle 6 closest to the receiving groove 7. Thus, when the first electromagnet 9 is de-energized and no magnetic force is generated, the handle 6 extends out of the receiving groove 7 under the action of the spring 10, making it easy for people to take it out. To better stabilize the position of the spring 10, a spring groove is provided in the receiving groove 7, and the end of the spring 10 closest to the receiving groove 7 rests in the spring groove.

[0026] refer to Figure 3 An electromagnet slot 11 is provided in the receiving groove 7. A first mounting plate 12 is installed in the electromagnet slot 11. A first electromagnet 9 is connected to the first mounting plate 12, thereby supporting the position of the first electromagnet 9 through the first mounting plate 12. Then, the first electromagnet 9 magnetically attracts the iron piece 8 on one end of the handle 6 and fixes the handle 6 in the receiving groove 7.

[0027] To prevent theft of the battery box, the top cover 2 has a mounting cavity 13. An anti-theft electromagnet 14 and a second mounting plate 15 are installed in the mounting cavity 13. One end of the second mounting plate 15 is installed in the mounting cavity 13, and the other end of the second mounting plate 15 is connected to the anti-theft electromagnet 14. The anti-theft electromagnet 14 is connected to the mounting cavity 13 of the top cover 2 through the second mounting plate 15. Multiple second mounting plates 15 can be installed to stabilize the position of the anti-theft electromagnet 14. A front cover 16 is screwed to the side of the top cover 2 away from the battery box body 1. A frame base 17 is provided on the side of the front cover 16 away from the top cover 2. The frame base 17 is screwed to the frame. An anti-theft electromagnet 14 is connected to the central control of the electric bicycle. The central control controls the magnetic attraction of the anti-theft electromagnet 14, so that when the anti-theft electromagnet 14 is energized, it magnetically attracts the electric bicycle's tube, thus magnetically holding the battery box in place in the tube to prevent it from falling off or being taken away. The front cover 16 has a first magnetic clearance hole 18 that cooperates with the anti-theft electromagnet 14. The frame base 17 has a second magnetic clearance hole 19 that cooperates with the anti-theft electromagnet 14. An anti-theft plate 20 is provided on the side of the frame base 17 away from the battery box body 1. The anti-theft plate 20 is installed at one end of the electric bicycle's tube where the battery box is inserted. The anti-theft electromagnet 14 then magnetically attracts the anti-theft plate 20 to the tube, thus stabilizing the position of the battery box in the tube and preventing theft. When the battery box needs to be removed, the central control signal is transmitted to the battery cell, and the battery cell stops supplying power to the anti-theft electromagnet 14, so that the anti-theft electromagnet 14 no longer generates attraction, thereby removing the battery box.

[0028] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A tubular battery box for electric bicycles, characterized in that, include: A battery box body (1) is provided with an upper cover (2) at one end and a lower cover (3) at the other end. A power interface (4) is provided on the lower cover (3). A handle (6) is rotatably connected to the upper cover (2) via a pivot pin (5). The upper cover (2) has a receiving groove (7) for accommodating the handle (6). An iron piece (8) is provided at the end of the handle (6) away from the pivot pin (5). A first electromagnet (9) is provided on the upper cover (2). The first electromagnet (9) magnetically attracts the iron piece (8) to close the handle (6). A spring (10) is provided in the receiving groove (7). One end of the spring (10) is connected to the receiving groove (7), and the other end of the spring (10) is connected to the side of the handle (6) near the receiving groove (7).

2. A tubular battery box for an electric bicycle according to claim 1, characterized in that: A spring groove is provided in the receiving groove (7), and the end of the spring (10) near the receiving groove (7) abuts against the spring groove.

3. A tube-type battery box for electric bicycles according to claim 1, characterized in that: An electromagnet slot (11) is provided in the receiving groove (7), and a first mounting plate (12) is provided in the electromagnet slot (11). The first electromagnet (9) is connected to the first mounting plate (12).

4. A tube-type battery box for electric bicycles according to claim 1, characterized in that: The upper cover (2) has an installation cavity (13), and an anti-theft electromagnet (14) and a second mounting plate (15) are provided in the installation cavity (13). The anti-theft electromagnet (14) is connected to the installation cavity (13) of the upper cover (2) through the second mounting plate (15). The anti-theft electromagnet (14) is magnetically attracted to the tube of the electric bicycle.

5. A tube-type battery box for an electric bicycle according to claim 4, characterized in that: The first electromagnet (9) and the anti-theft electromagnet (14) are both connected to the central control of the electric bicycle, and the central control controls the magnetic attraction of the first electromagnet (9) and the anti-theft electromagnet (14).

6. A tubular battery box for an electric bicycle according to claim 5, characterized in that: The upper cover (2) is connected to a front cover (16) on the side away from the battery box body (1). The front cover (16) has a first magnetic clearance hole (18) that cooperates with the anti-theft electromagnet (14). The front cover (16) is provided with a frame base (17) on the side away from the upper cover (2). The frame base (17) is connected to the frame. The frame base (17) has a second magnetic clearance hole (19) that cooperates with the anti-theft electromagnet (14). The frame base (17) is provided with an anti-theft plate (20) on the side away from the battery box body (1).