Electric bicycle lower tube semi-embedded battery box

Abstract

The utility model discloses an electric bicycle lower tube semi-embedded type battery box which comprises a lower tube, a front fixing seat, a rear fixing seat, a front end positioning piece and a rear end positioning piece, a notch is formed in the tube wall of the lower tube and forms a battery bin, and the front fixing seat and the rear fixing seat are arranged in the positions, at the two ends of the battery bin, of the lower tube respectively. A first lock body is arranged on the front fixing seat, an electric connector and an anti-disengaging positioning pile are arranged on the rear fixing seat, and a front end positioning piece in profiling joint with the first lock body is arranged on the front fixing seat in a matched mode. According to the mode, the lower tube semi-embedded type battery box of the electric bicycle, provided by the utility model, has the advantages that the front positioning piece and the rear positioning piece are respectively arranged for the front fixing seat and the rear fixing seat in a matching manner, and under the matching of secondary locks provided by the first spring bolt and the second spring bolt, the slippage damage caused in the battery pack dismounting process can be effectively avoided; the risk of short circuit of the battery pack caused by external force impact is reduced.

Description

Technical Field

[0001] The utility model relates to the field of electric bicycles, in particular to a semi-embedded battery box for the down tube of an electric bicycle. Background Art

[0002] The down tube of an electric bicycle can be used to integrate a battery pack. Generally, the battery pack is installed at the bottom of the down tube. During the disassembly process of the battery pack, it is easy to slip off, and there are safety risks for the battery cells.

[0003] The prior art usually uses a mechanical key to lock the battery pack on the down tube. Before inserting the key and rotating it to unlock, it is necessary to firmly hold the battery pack in advance. Otherwise, when the mechanical lock is unlocked instantaneously, the battery will slip off the down tube and fall, and the external impact force can cause battery failure.

[0004] The general-purpose battery pack is installed in the battery compartment of the down tube. Before the user disassembles and installs the battery pack, it is also necessary to take out and place the cover plate in advance. The traditional cover plate is usually fixed separately by another lock core, resulting in problems such as increased material costs, inconvenient disassembly and installation, and occupying the space of the battery pack. Content of the Utility Model

[0005] The main technical problem to be solved by the utility model is to provide a semi-embedded battery box for the down tube of an electric bicycle. Front and rear positioning members are respectively provided for the front and rear fixing seats. At the same time, with the cooperation of the secondary lock provided by the first lock tongue and the second lock tongue, it is possible to effectively avoid the slippage damage caused by the disassembly process of the battery pack and reduce the risk of short circuit of the battery pack due to external force impact.

[0006] To solve the above technical problem, a technical solution adopted by the utility model is: to provide a semi-embedded battery box for the down tube of an electric bicycle, including a down tube, a front fixing seat, a rear fixing seat, a front end positioning member, and a rear end positioning member. A notch is formed in the pipe wall of the down tube to form a battery compartment. The down tube internally installs a front fixing seat and a rear fixing seat at both ends of the battery compartment respectively. A first lock body is arranged on the front fixing seat, and an electrical connector and an anti-slip positioning post are arranged on the rear fixing seat. A front end positioning member that is shaped to engage the first lock body is provided on the front fixing seat in a matching manner, and a rear end positioning member that is shaped to engage the anti-slip positioning post is provided on the rear fixing seat in a matching manner. The front end positioning member and the rear end positioning member are paired one by one and are both provided with battery pack installation holes.

[0007] In a preferred embodiment of the utility model, the front end positioning member and the rear end positioning member are respectively provided with expansion plugs on the side facing the notch. The battery compartment is covered with a cover plate that fits the notch. A pair of integrally formed positioning ribs are arranged on the inner wall of the cover plate, and the positioning ribs are paired and tightened on both sides of the expansion plugs.

[0008] In a preferred embodiment of the present invention, the first lock body is a mechanical key lock, and the mechanical key lock includes a first lock tongue, and the first lock tongue passes through the front fixing seat and is contouredly engaged with the front end positioning member.

[0009] In a preferred embodiment of the utility model, a second lock body is arranged on the front fixed seat, the front end positioning piece is conformally engaged with the second lock body, the second lock body is composed of a second lock tongue, a trigger paddle and a button, the front fixed seat is provided with a cavity base buried in the lower tube, the top of the cavity base is inlaid with a button, the lower tube is provided with a through hole matching the shape of the button, a second lock tongue with a spring crimped thereon is horizontally arranged in the cavity base, the second lock tongue passes through the front fixed seat and is conformally engaged with the front end positioning piece, a slot is provided on the second lock tongue, the trigger paddle is movably mounted in the cavity base through a rotating shaft and is respectively overlapped and connected with the button and the slot, the trigger paddle is pushed by the button in a counterclockwise direction and simultaneously pulls the second lock tongue to compress the spring, and the second lock body is used to prevent falling off.

[0010] In a preferred embodiment of the present invention, a pair of convex ribs are symmetrically arranged on the inner wall of the lower tube, and a lining plate covering the bottom of the battery compartment is installed on the convex ribs.

[0011] In a preferred embodiment of the utility model, a groove for contour-engaging the first locking tongue is formed on the front end positioning member, and an elastic spring is installed in the groove, and the elastic spring abuts against the first locking tongue in a compressed state.

[0012] The beneficial effects of the utility model are as follows: the utility model provides a semi-embedded battery box on the lower tube of an electric bicycle, wherein front and rear positioning members are respectively provided for the front and rear fixing seats, and at the same time, with the cooperation of the secondary locks provided by the first locking tongue and the second locking tongue, the slippage damage caused by the disassembly process of the battery pack can be effectively avoided, and the risk of short circuit of the battery pack caused by external force impact can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0014] Figure 1 This is a complete structural diagram of a semi-embedded battery box on the lower tube of an electric bicycle of the utility model;

[0015] Figure 2 It is the structural diagram of the front fixed seat;

[0016] Figure 3It is a structural diagram of the rear fixed seat;

[0017] Figure 4 is a structural diagram of the second lock body;

[0018] Figure 5 It is a structural diagram of the elastic reed;

[0019] Figure 6 It is the structural diagram of the cover;

[0020] Figures 7-9 It is a schematic diagram of the three situations of upper extraction, lower extraction and side extraction. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] like Figures 1-9 As shown, the embodiment of the utility model includes:

[0023] A semi-embedded battery box for a down tube of an electric bicycle comprises a down tube 1, a front fixing seat 2, a rear fixing seat 3, a front end positioning piece 4, and a rear end positioning piece 5. A notch 6 is provided on the tube wall of the down tube 1 to form a battery compartment 7. The down tube 1 has the front fixing seat 2 and the rear fixing seat 3 built in at both ends of the battery compartment 7, respectively. The front fixing seat 2 is provided with a first lock body 8, and the rear fixing seat 3 is provided with an electrical connector 9 and an anti-slip positioning pile 10. The front fixing seat 2 is provided with a front end positioning piece 4 that is contour-engaged with the first lock body 8, and the rear fixing seat 3 is provided with a rear end positioning piece 5 that is contour-engaged with the anti-slip positioning pile 10. The front end positioning piece 4 and the rear end positioning piece 5 are matched one by one and are both provided with a battery pack mounting hole 11.

[0024] Among them, the front end positioning member 4 and the rear end positioning member 5 are respectively provided with a tightening plug 12 on the side facing the notch 6, the battery compartment 7 is covered with a cover plate 13 that matches the notch 6, and the inner wall of the cover plate 13 is provided with a pair of integrally formed positioning ribs 14, and the positioning ribs 14 are paired and tightened on both sides of the tightening plug 12.

[0025] Furthermore, the first lock body 8 is a mechanical key lock, and the mechanical key lock includes a first lock tongue 15 , and the first lock tongue 15 passes through the front fixing seat 2 and is contour-engaged with the front end positioning member 4 .

[0026] Further, a second lock body 16 is provided on the front fixing base 2. The front end positioning member 4 is in profile engagement with the second lock body 16. The second lock body 16 is composed of a second lock tongue 17, a trigger paddle 18, and a button 19. The front fixing base 2 is provided with a cavity base 30 embedded in the down tube 1. The button 19 is inlaid on the top of the cavity base 30. The down tube 1 is provided with a through hole matching the shape of the button 19. A second lock tongue 17 with a spring 31 pressed thereon is horizontally arranged in the cavity base 30. The second lock tongue 17 passes through the front fixing base 2 and is in profile engagement with the front end positioning member 4. A card slot 32 is formed on the second lock tongue 17. The trigger paddle 18 is movably mounted in the cavity base 30 through a rotating shaft 33 and is respectively lapped and connected with the button 19 and the card slot 32. The trigger paddle 18 is pushed by the button 19 in the counterclockwise direction and simultaneously pulls the second lock tongue 17 to compress the spring 31. The second lock body 16 is used for anti-disengagement.

[0027] Further, a pair of convex ribs 34 are symmetrically arranged on the inner wall of the down tube 1, and a lining plate 35 covering the bottom of the battery compartment 7 is installed on the convex ribs 34.

[0028] Further, a groove 36 for profile engagement with the first lock tongue 15 is formed on the front end positioning member 4, and an elastic reed 37 is installed in the groove 36. The elastic reed 37 abuts against the first lock tongue 15 in a compressed state.

[0029] This product is a set of anti-disengagement solutions for the down tube 1 of an electric assist bicycle, and it has 3 actual installation methods:

[0030] As Figure 7 shown, the upper-taking installation layout is adopted. When the key is inserted into the second lock body 16, the battery pack 100 can be unlocked. The battery pack 100 can pop up but cannot be lifted. The user must press the button 19 to unlock the second lock tongue 17 before the battery pack 100 can be taken out.

[0031] As Figure 8 shown, the lower-taking installation layout is adopted. When the key is inserted into the second lock body 16, the battery pack 100 can be unlocked. The battery pack 100 can pop out and continue to hang in the battery compartment 7 under the action of the second lock tongue 17. The user must press the button 19 to unlock the second lock tongue 17 before the battery pack 100 can fall off.

[0032] As Figure 9 shown, the side-taking installation layout is adopted. When the key is inserted into the second lock body 16, the battery pack 100 can be unlocked. After the battery pack 100 pops out a short distance in the side direction, it will be hooked by the second lock tongue 17 and cannot leave the battery compartment 7. The user must press the button 19 to unlock the second lock tongue 17 before the battery pack 100 can be pulled out from the side.

[0033] To achieve the above functions, the following is required as Figure 1A pair of front fixing seats 2 + front end positioning members 4, and a pair of rear fixing seats 3 + rear end positioning members 5 are shown. The front end positioning members 4 and the rear end positioning members 5 can be modularly added to any ordinary battery pack 100, making the product highly compatible and providing good adaptation for the old - style general - type battery pack 100.

[0034] In summary, the present utility model provides a semi - embedded battery box for the down tube 1 of an electric bicycle. Front and rear positioning members are respectively provided for the front and rear fixing seats 3. At the same time, with the cooperation of the secondary lock provided by the first locking tongue 15 and the second locking tongue 17, it can effectively avoid the slippage damage caused by the disassembly process of the battery pack 100 and reduce the risk of short - circuit of the battery pack 100 due to external force impact.

[0035] The above are only the embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification of the present utility model, or directly or indirectly applied in other related technical fields, shall be included in the patent protection scope of the present utility model by the same token.

Claims

1. A semi-embedded battery box for a down tube of an electric bicycle, characterized in that: It includes a lower tube, a front fixing seat, a rear fixing seat, a front positioning piece, and a rear positioning piece. The tube wall of the lower tube is provided with a notch to form a battery compartment. The lower tube has a front fixing seat and a rear fixing seat built in at both ends of the battery compartment respectively. The front fixing seat is provided with a first lock body, and the rear fixing seat is provided with an electrical connector and an anti-detachment positioning pile. The front fixing seat is provided with a front positioning piece that is conformally engaged with the first lock body, and the rear fixing seat is provided with a rear positioning piece that is conformally engaged with the anti-detachment positioning pile. The front positioning piece and the rear positioning piece are matched one by one and both have a battery pack mounting hole.

2. The semi-embedded battery box for the down tube of an electric bicycle according to claim 1, characterized in that: The front end positioning member and the rear end positioning member are respectively provided with expansion plugs on the side facing the notch, the battery compartment is covered with a cover plate that matches the notch, and the inner wall of the cover plate is provided with a pair of integrally formed positioning ribs, and the positioning ribs are paired and expanded on both sides of the expansion plug.

3. The semi-embedded battery box for the down tube of an electric bicycle according to claim 1, characterized in that: The first lock body is a mechanical key lock, and the mechanical key lock includes a first lock tongue, and the first lock tongue passes through the front fixing seat and is in conformal engagement with the front end positioning piece.

4. The semi-embedded battery box for the down tube of an electric bicycle according to claim 1, characterized in that: A second lock body is arranged on the front fixed seat, and the front end positioning piece is conformally engaged with the second lock body. The second lock body is composed of a second lock tongue, a trigger paddle and a button. The front fixed seat is provided with a cavity base buried in the lower tube, and a button is inlaid on the top of the cavity base. The lower tube is provided with a through hole matching the shape of the button, and a second lock tongue with a spring crimped thereon is horizontally arranged in the cavity base. The second lock tongue passes through the front fixed seat and is conformally engaged with the front end positioning piece. A slot is provided on the second lock tongue, and the trigger paddle is movably mounted in the cavity base through a rotating shaft and is overlapped and connected with the button and the slot respectively. The trigger paddle is pushed by the button in a counterclockwise direction and simultaneously pulls the second lock tongue to compress the spring, and the second lock body is used to prevent falling off.

5. The semi-embedded battery box for the down tube of an electric bicycle according to claim 1, characterized in that: A pair of convex ribs are symmetrically arranged on the inner wall of the lower tube, and a lining plate covering the bottom of the battery compartment is installed on the convex ribs.

6. The semi-embedded battery box for the down tube of an electric bicycle according to claim 3, characterized in that: The front end positioning member is provided with a groove for conformally engaging the first locking tongue, an elastic spring is installed in the groove, and the elastic spring abuts against the first locking tongue in a compressed state.

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