A seat tube battery box and electric assist bicycle

Abstract

This utility model relates to the field of electric-assist bicycle technology, and discloses a seatpost battery box and an electric-assist bicycle. The seatpost battery box of this utility model includes: a seatpost, the seatpost having a first receiving space for accommodating a battery; a power cord, one end of which is connected to the battery, and the other end of which is connected to an electrical device; wherein, the outer wall of the seatpost has a groove, the groove having a second receiving space for accommodating the power cord, the second receiving space being connected to the first receiving space, and one end of the power cord being connected to the battery. The seatpost battery box and electric-assist bicycle of this utility model conceal excess power cords, greatly reducing the impact of external environmental factors; it saves a set of pluggable connectors, effectively preventing power cord theft and ensuring property security.

Description

Technical Field

[0001] This utility model relates to the field of electric-assisted bicycle technology, and more specifically, to a seatpost battery box and an electric-assisted bicycle. Background Technology

[0002] Electric-assisted bicycles are bicycles that use batteries as an auxiliary power source and have an electric motor as an electrical device to achieve the driving function, allowing for free switching between human-powered riding and motor-assisted riding.

[0003] To achieve electrical connection between the battery and the power supply in existing e-bikes, the wiring is typically concealed inside the frame. This is achieved by placing wiring holes on the outside of the battery and on the frame, with a detachable cable running between the two holes. Since users may adjust the seatpost height according to their needs, this external cable design requires some cable slack to ensure the cable remains connected regardless of the seatpost height. Exposing the entire cable externally results in poor theft prevention and susceptibility to external environmental factors. Utility Model Content

[0004] To address the aforementioned issues, this invention provides a seatpost battery box and an electric-assist bicycle that conceals excess wiring, significantly reducing susceptibility to external environmental factors; it also eliminates the need for a set of pluggable connectors, effectively preventing wire theft and ensuring property security.

[0005] Therefore, the primary objective of this utility model is to provide a battery holder.

[0006] The second objective of this invention is to provide an electric-assisted bicycle.

[0007] To achieve the first objective of this utility model, the technical solution of this utility model provides a battery holder comprising: a battery holder having a first accommodating space for accommodating a battery; a power wire having one end connected to the battery and the other end connected to an electrical device; wherein, the outer wall of the battery holder is provided with a groove having a second accommodating space for accommodating the power wire, the second accommodating space being connected to the first accommodating space, and one end of the power supply wire being connected to the battery.

[0008] In one technical solution of this utility model, the battery box for the seat tube includes: a bottom plug, which is used to block the lower port of the seat tube, and the bottom plug is provided with a through hole, which connects the first accommodating space and the second accommodating space.

[0009] In one technical solution of this utility model, the seat tube battery box includes: a frame center tube, which is sleeved on the outside of the seat tube; and a collar, which is sleeved on the outer side wall of the frame center tube, allowing the seat tube to slide relative to the frame center tube, and the collar is used for positioning the seat tube.

[0010] In one technical solution of the present utility model, the seat tube battery box includes: a positioning member disposed on the collar body for the other end of the power supply wire to extend out from the second accommodation space via the positioning member.

[0011] In one technical solution of the present utility model, two guiding grooves are respectively formed by the two side walls of the positioning member recessing towards the body of the positioning member. The guiding grooves cooperate with the groove body for the positioning member to slide along the groove body.

[0012] In one technical solution of the present utility model, a clamping groove is provided on the body of the collar for fixing the positioning member.

[0013] In one technical solution of the present utility model, the clamping groove includes: a strengthening portion formed by the side edge of the collar protruding outwards; a fixing portion in a shape of "匚".

[0014] In one technical solution of the present utility model, an opening groove is provided on the middle tube of the vehicle frame.

[0015] In one technical solution of the present utility model, the bottom of the opening groove is smooth.

[0016] To achieve the second object of the present utility model, the technical solution of the present utility model provides an electric assist bicycle including: a seat tube battery box as in any of the above technical solutions, the seat tube battery box is used to accommodate a battery, and the battery is connected to an electrical device through a wire. [[ID=二十一]] [[ID=二十二]]

[0017] [[ID=二十三]]Adopting the technical solution provided by the present utility model can achieve at least one of the following effects: [[ID=二十四]] [[ID=二十五]] (1) By providing a groove body on the outer side wall of the seat tube, the redundant wires are hidden, reducing the risks of external environmental factors such as rainwater scouring, ultraviolet aging, and wire entanglement; [[ID=二十六]] [[ID=二十七]] (2) Reducing the use of a set of waterproof pluggable connectors not only increases the anti-theft coefficient but also saves costs. [[ID=二十八]] [[ID=二十九]]BRIEF DESCRIPTION OF THE DRAWINGS [[ID=三十]] [[ID=三十一]]

[0018] [[ID=三十二]]In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will discuss the drawings required for use in the description of the embodiments or the prior art. Obviously, the technical solutions described in conjunction with the drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other embodiments and their drawings can be obtained based on the embodiments shown in these drawings. [[ID=三十三]] [[ID=三十四]]

[0019] [[ID=三十五]] Figure 1 [[ID=三十六]]One of the structural schematic diagrams of the seat tube battery box provided by the embodiment of the present utility model; [[ID=三十七]] [[ID=三十八]] Figure 2 [[ID=三十九]]Another structural schematic diagram of the seat tube battery box provided by the embodiment of the present utility model; Figure 3 The third schematic diagram of the battery box provided in this embodiment of the utility model; Figure 4 The fourth schematic diagram of the battery box provided in this embodiment of the present utility model; Figure 5 One of the structural schematic diagrams of the collar provided in the embodiment of this utility model; Figure 6 One of the structural schematic diagrams of the seat tube provided in the embodiment of this utility model; Figure 7 The second schematic diagram of the seat tube provided in this embodiment of the utility model.

[0020] Explanation of reference numerals in the attached figures: 100, Battery box for seat post; 110, Seat post; 110a, First receiving space; 111, Slot; 111a, Second receiving space; 120, Wire; 130, Center tube of frame; 131, Opening slot; 140, Collar; 141, Slot; 141a, Reinforcing part; 141b, Fixing part; 150, Positioning element; 151, Guide groove; 160, Bottom plug; 161, Through hole. Detailed Implementation

[0021] The technical solutions of various embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] Furthermore, it should be understood in the description of this utility model that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," 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, an electrical connection, or a communication 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] In this invention, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "implementation," "example," "aspect," or "specific example" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0025] The following reference Figures 1 to 7 The technical solutions of some embodiments of this utility model are described below.

[0026] An embodiment of this utility model provides a battery holder 100 comprising: a battery holder 110 having a first accommodating space 110a for accommodating a battery; a power cord 120 having one end connected to the battery and the other end connected to an electrical device; wherein, the outer wall of the battery holder 110 is provided with a groove 111 having a second accommodating space 111a for accommodating the power cord 120, the second accommodating space 111a communicating with the first accommodating space 110a for connecting one end of the power cord 120 to the battery.

[0027] For example, wire 120 is a retractable wire.

[0028] For example, wire 120 is a spring wire.

[0029] The battery box 100 adopts a dual-cavity structure. The first accommodating space 110a is the battery compartment, and the second accommodating space 111a is the cable channel. The first accommodating space 110a and the second accommodating space 111a are physically isolated, realizing the physical partitioning of the "energy storage-conduction" function. This separate design avoids the interference risk caused by the mixing of batteries and wires in traditional solutions. The channel 111 serves as a dedicated channel for the wire 120, allowing the cable to extend in an orderly manner along a predetermined trajectory, eliminating the risk of entanglement caused by free hanging. The closed and semi-closed channels formed by the channel 111 effectively block rainwater erosion, sand and dust intrusion, and direct ultraviolet radiation, which can slow down the aging of the cable. The second accommodating space 111a provides an elastic buffer for the cable, which can absorb the displacement stress caused by vehicle bumps or thermal expansion and contraction. The elimination of independent waterproof connectors and sheath components not only increases the anti-theft factor but also saves costs.

[0030] In some embodiments of this application, reference is made to Figure 4 As shown, the battery box 100 includes: a bottom plug 160, which is used to block the lower port of the seat tube 110. The bottom plug 160 is provided with a through hole 161, which connects the first accommodating space 110a and the second accommodating space 111a.

[0031] For example, the edges of through hole 161 are rounded.

[0032] The bottom plug 160, as an independent sealed component, isolates the external environment from direct contact with the first receiving space 110a, effectively blocking the intrusion of pollutants such as mud, water vapor, and dust, and improving the battery's service life. The through hole 161 maintains the connectivity between the two spaces. Specifically, the through hole enables one end of the wire 120 to be connected to the battery, forcibly guiding the wire 120 to enter the first receiving space 110a from the second receiving space 111a along a predetermined trajectory, eliminating the vibration and stress caused by free swinging.

[0033] In some embodiments of this application, the seat post battery box 100 includes: a frame center tube 130, which is sleeved on the outside of the seat post 110; and a collar 140, which is sleeved on the outer side wall of the frame center tube 130. The seat post 110 can slide relative to the frame center tube 130, and the collar 140 is used for positioning the seat post 110.

[0034] For example, the collar 140 uses a snap ring pin to achieve opening and closing.

[0035] For example, the frame center tube 130 is marked with multiple preset positions by laser engraving.

[0036] The frame center tube 130 serves as the basic skeleton, with the seat tube 110 embedded within it as an independent functional module, forming a "frame + plug-in" structure to adapt to the development needs of different vehicle platforms.

[0037] In some embodiments of this application, the battery holder 100 includes a positioning member 150, which is disposed on the body of the collar 140 and is used for the other end of the power supply line 120 to extend from the second receiving space 111a via the positioning member 150.

[0038] For example, the positioning element 150 has a rounded transition structure. This keeps the bending radius of the wire 120 within a safe range, effectively reducing the risk of open circuit caused by metal fatigue.

[0039] The addition of a positioning component 150 optimizes the routing and management of the wire 120. As the sole exit channel for the wire 120, the positioning component 150 forces the cable to exit from a designated position within the second receiving space 111a, preventing misalignment or tangling risks caused by pulling or vibration. This mechanical structure increases the reliability of wire 120 management within a limited space.

[0040] In some embodiments of the present application, referring to Figure 4 as shown, on both side walls of the positioning member 150, two guiding grooves 151 are respectively recessed towards the body of the positioning member 150. The guiding grooves 151 cooperate with the groove body 111 for the positioning member 150 to slide along the groove body 111.

[0041] For example, referring to Figures 6-7 as shown, the shape of the groove body 111 is similar to that of a duck's mouth. Reinforcing ribs are provided inside the groove body 111 to increase the strength of the contact surface between the groove body 111 and the guiding groove 151.

[0042] The guiding grooves 151 limit the degrees of freedom of the positioning member 150, only retaining the sliding degree of freedom for sliding along the groove body 111, eliminating the risk of offset.

[0043] In some embodiments of the present application, on the body of the collar 140, a clamping groove 141 is provided, and the clamping groove 141 is used to fix the positioning member 150.

[0044] Specifically, between the positioning member 150 and the collar 140, by providing the clamping groove 141, a clamping fixing method is adopted, which is convenient for assembly and maintenance.

[0045] In some embodiments of the present application, referring to Figure 5 as shown, the clamping groove 141 includes: a reinforcing portion 141a, which is formed by the side edge of the collar 140 protruding outwards; a fixing portion 141b, and the fixing portion 141b is in a "匚" shape.

[0046] By providing the reinforcing portion 141a, the concentrated load is dispersed to the body of the collar 140 to avoid local plastic deformation. It can be understood that the clamping groove 141 and the positioning member form three-point contact on the upper and lower two surfaces + the side surface in the axial direction of the groove body 111. Since the positioning member 150 slides along the groove body 111, the clamping groove 141 is in contact with the upper and lower two surfaces of the positioning member to ensure its bearing capacity; the other side is open, which is convenient for assembly and maintenance.

[0047] In some embodiments of the present application, referring to Figure 3 as shown, the middle tube 130 of the vehicle frame is provided with an opening groove 131.

[0048] It can be understood that the opening groove 131 cooperates with the groove body 111, and the collar 140 can adjust its axial position along the middle tube 130 of the vehicle frame without affecting the preset routing of the wire 120.

[0049] In some embodiments of the present application, referring to Figure 3 as shown, the bottom of the opening groove 131 is smooth.

[0050] The smooth groove bottom eliminates the local high stress concentration phenomenon of traditional right-angle and sharp-edge structures, which reduces the dynamic friction coefficient between the contact surface of the wire 120 and the frame tube 130 when the collar 140 slides axially, and avoids the insulation layer damage caused by repeated friction between the wire 120 and the groove bottom due to vibration.

[0051] An embodiment of this utility model provides an electric-assisted bicycle including: a seatpost battery box 100 as described in any of the above embodiments, the seatpost battery box 100 being used to house a battery, the battery being connected to an electrical device via a wire 120.

[0052] The electric-assisted bicycle of this embodiment includes the seat post battery box 100 of any embodiment of the present invention, and thus has all the beneficial effects of the seat post battery box 100 of any embodiment of the present invention, which will not be repeated here.

[0053] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0054] While the present invention has been disclosed above, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the present invention; therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

Claims

1. A battery holder, characterized in that, The seat tube battery box (100) includes: A seat tube (110) having a first accommodation space (110a) for accommodating a battery. A wire (120) having one end connected to the battery and the other end connected to an electrical device. Wherein, a groove body (111) is provided on the outer sidewall of the seat tube (110), and the groove body (111) has a second accommodation space (111a) for accommodating the wire (120). The second accommodation space (111a) is connected to the first accommodation space (110a) for one end of the wire (120) to be connected to the battery.

2. The battery holder according to claim 1, characterized in that, The seat tube battery box (100) includes: A bottom plug (160) for plugging the lower port of the seat tube (110). The bottom plug (160) is provided with a through hole (161) that connects the first accommodation space (110a) and the second accommodation space (111a).

3. The battery holder according to claim 1, characterized in that, The seat tube battery box (100) includes: A frame middle tube (130) sleeved outside the seat tube (110). A collar (140) sleeved on the outer sidewall of the frame middle tube (130). The seat tube (110) can slide relative to the frame middle tube (130), and the collar (140) is used for positioning the seat tube (110).

4. The battery holder according to claim 3, characterized in that, The seat tube battery box (100) includes: A positioning member (150) provided on the body of the collar (140) for the other end of the wire (120) to extend out from the second accommodation space (111a) via the positioning member (150).

5. The seat tube battery box according to claim 4, wherein: Two guiding grooves (151) are respectively recessed from the two sidewalls of the positioning member (150) towards the body of the positioning member (150). The guiding grooves (151) cooperate with the groove body (111) for the positioning member (150) to slide along the groove body (111).

6. The battery holder according to claim 4, characterized in that, A clamping groove (141) is provided on the body of the collar (140) for fixing the positioning member (150).

7. The battery holder according to claim 6, characterized in that, The clamping groove (141) includes: A strengthening portion (141a) formed by the side edge of the collar (140) protruding outwards. A fixing portion (141b) in a shape of "匚".

8. The battery holder according to claim 4, characterized in that, The frame middle tube (130) is provided with an opening groove (131).

9. The battery holder according to claim 8, characterized in that, The bottom of the opening groove (131) is smooth.

10. An electric-assisted bicycle, characterized in that, The electric assist bicycle includes the seat tube battery box (100) according to any one of claims 1-9. The seat tube battery box (100) is used for accommodating a battery, and the battery is connected to an electrical device through a wire.

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