CN215922438U

CN215922438U - Electric bicycle frame

Info

Publication number: CN215922438U
Application number: CN202022962569.XU
Authority: CN
Inventors: 谢裕昌
Original assignee: DARFON INNOVATION CORP; Darfon Electronics Suzhou Co Ltd
Current assignee: DARFON INNOVATION CORP; Darfon Electronics Suzhou Co Ltd
Priority date: 2020-12-10
Filing date: 2020-12-10
Publication date: 2022-03-01
Anticipated expiration: 2030-12-10

Abstract

The utility model provides an electric bicycle frame, comprising: a lower tube having a receiving part into which a battery is inserted, the receiving part being configured to receive the battery; and an upper tube extending transversely with respect to the lower tube, the upper tube having a front end, a rear end opposite to the front end, and a through hole communicating with the accommodating part, wherein the through hole for inserting the battery into the accommodating part is formed to penetrate the upper tube; the rear end of the upper tube is connected with the seat tube and the front end is connected with a component comprising a head tube and a handle; the long shaft of the lower tube is arranged to make the lower end of the lower tube located in front of the rear wheel and allow the battery to be inserted into and taken out from the accommodating part without interfering with the handle.

Description

Electric bicycle frame

Technical Field

The utility model relates to an electric bicycle frame, in particular to a bicycle frame convenient for assembling and disassembling a battery.

Background

The existing bicycle is changed from the original walking tool to one of the tools for promoting leisure and healthy life. However, since not everyone can afford a long-distance route or a difficult climbing road, an electric bicycle with auxiliary power is produced.

Generally, an electric bicycle uses a battery as a power source of an electric motor, and the battery is usually attached to a frame of the bicycle. However, the space of the bicycle frame is limited, and the size of the battery that can be installed is limited to facilitate the removal of the battery. In addition, in order to prolong the operation time of the auxiliary power, the capacity and the size of the battery are correspondingly increased, so that the battery is not easy to be attached to the frame or is easy to be clamped with the frame when the battery is extracted, and inconvenience is brought to a user in the use process. How to improve the convenience of battery extraction while effectively utilizing the space of the frame is one of the important research and development directions nowadays.

Therefore, there is a need to design a novel battery lifting device and an electric bicycle to overcome the above-mentioned drawbacks.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a battery lifting device and an electric bicycle, which are convenient for a user to fix or take out a battery.

To achieve the above object, the present invention provides an electric bicycle frame, comprising: a lower tube having a receiving part into which a battery is inserted, the receiving part being configured to receive the battery; and an upper tube extending laterally relative to the lower tube, the upper tube having a front end, a rear end opposite the front end, and a through hole communicating with the receiving portion, wherein: the through hole for inserting the battery into the accommodating part is formed to penetrate through the upper pipe; the rear end of the upper tube is connected with the seat tube and the front end is connected with a component comprising a head tube and a handle; the long shaft of the lower tube is arranged to make the lower end of the lower tube located in front of the rear wheel and allow the battery to be inserted into and taken out from the accommodating part without interfering with the handle.

Preferably, the electric bicycle frame further comprises a blocking member movably disposed near the through hole to selectively at least partially block the through hole of the upper tube.

Preferably, the electric bicycle frame further comprises a buffer member disposed on the stopping member, wherein when the stopping member blocks the through hole, the buffer member is pressed against the battery.

Preferably, the electric bicycle frame further comprises a locking device, the locking device is arranged on the upper pipe, and the locking device can be selectively in an unlocking state and a locking state; when the locking device is in the locking state, the locking device interferes with the battery to limit the battery to move relative to the accommodating part; when the locking device is in the unlocking state, the interference between the locking device and the battery is released, so that the battery is allowed to move relative to the accommodating part.

Preferably, the locking device includes a lock body, a tongue piece and an interference unit, the tongue piece is corresponding to the unlocking state and the locking state of the lock body and is telescopic relative to the lock body, when the lock body is in the locking state, the tongue piece is extended to push the interference unit to interfere with the battery; when the lock body is in the unlocking state, the tongue piece retracts to release the interference of the interference unit and the battery.

Preferably, the electric bicycle frame further comprises a stopping member movably disposed near the through hole to selectively at least partially block the through hole of the upper tube, wherein when the stopping member blocks the through hole and the locking device is in the locking state, the locking device further interferes with the stopping member to limit the stopping member from moving relative to the upper tube.

Preferably, the electric bicycle frame further comprises a restoring force device disposed on the lower tube, wherein the restoring force device provides a power for the battery to ascend relative to the lower tube.

Preferably, the restoring force device is a pneumatic rod, the pneumatic rod comprises a body part and a telescopic rod, and the telescopic rod is extended relative to the body part by the pneumatic action of the body part to provide the power for lifting the battery.

Preferably, the restoring device is an elastic member disposed in the accommodating portion and located below the battery.

Preferably, the cell has a cross-section perpendicular to the long axis of the cell, the cross-section having a dimension smaller than the dimension of the through-hole.

Preferably, the down tube extends downwardly and rearwardly to be connected to the lower end of the seat tube.

To achieve the above object, the present invention further provides an electric bicycle frame, comprising: a lower tube having a receiving part into which a battery is inserted, the receiving part being configured to receive the battery; and an upper tube extending transversely relative to the upper tube, the upper tube having a front end, a rear end opposite to the front end, and a through hole communicating with the accommodating portion, wherein: the through hole for inserting the battery into the accommodating part is formed to penetrate through the upper pipe; the rear end of the upper tube is connected with the seat tube and the front end is connected with a component comprising a head tube and a handle; the long shaft of the lower tube is configured to allow the battery to be inserted into the accommodating portion and removed from the accommodating portion without interfering with the handle, so that the battery passes through the through hole at a predetermined angle greater than 90 degrees relative to the rear end of the upper tube.

Preferably, the lower end of the lower tube is close to the motor.

Preferably, the lower end of the down tube is adjacent to the assembly containing the pedal.

Preferably, the lower end of the down tube is located near the front of the rear wheel.

Preferably, the through hole is positioned proximate to the handle and distal from the seat tube.

Preferably, the upper end of the down tube is located close to the handle and away from the seat tube.

Compared with the prior art, the electric bicycle frame provided by the utility model has the advantages that the structural design of the upper pipe, the lower pipe and the accommodating part is adopted, the space of the frame is effectively utilized, and the convenience of battery extraction is improved.

Drawings

FIGS. 1A and 1B are schematic views of an electric bicycle according to an embodiment of the present invention, wherein FIG. 1A shows a battery mounted on a battery lifting device, and FIG. 1B shows the battery protruding from an upper tube by the battery lifting device;

FIG. 1C is an enlarged view of a portion of FIG. 1B;

FIGS. 2A-1, 2A-2 and 2B are schematic, exploded and cross-sectional views, respectively, of a battery mounted on a battery lifting device according to an embodiment of the present invention;

FIGS. 2C and 2D are schematic diagrams of the battery ascending and descending device of FIGS. 2A-1 and 2B;

FIG. 3A is a schematic diagram of a battery lifting device with a battery mounted thereon according to another embodiment of the present invention;

FIGS. 3B and 3C are schematic and sectional views of a battery ascending from the battery lifting device of FIG. 3A;

fig. 4A to 4C are schematic views illustrating the installation of a battery lifting device in cooperation with a decorative plate and an exploded view without a locking device according to an embodiment of the present invention, wherein fig. 4A shows a battery mounted on the battery lifting device, and fig. 4B shows the battery lifted by the battery lifting device;

fig. 5A and 5B are schematic views illustrating a battery lifting device according to another embodiment of the present invention, wherein fig. 5A shows a battery lifted by the battery lifting device, and fig. 5B shows the battery disposed on the battery lifting device;

fig. 6A to 6C are a partial schematic view and a perspective view of an electric bicycle according to another embodiment of the present invention, in which fig. 6A is a view showing a battery carrier device locking a battery to a frame, fig. 6B is a view showing the battery carrier device releasing interference between the battery and a stopper to allow the battery to be taken out, and fig. 6C is a partial perspective view of fig. 6A;

FIG. 7A is a schematic view of the lock body of the battery carrier of FIG. 6A in a locked state;

FIG. 7B is a schematic view of the lock body of the battery carrier of FIG. 6A in an unlocked state;

FIG. 7C is a schematic view of the rotation of the stopper of the battery carrying device of FIG. 6B relative to the frame;

FIGS. 8A-8B are schematic perspective and side views of a lock body and an interference piece according to an embodiment of the utility model.

Detailed Description

The utility model relates to an electric bicycle and a battery lifting device thereof, which can limit the movement of a battery during the running of the bicycle to provide power and can have the function of automatically lifting the battery to facilitate the extraction of the battery when the battery needs to be replaced or taken out. Hereinafter, details of the electric bicycle and the battery lifting device according to the embodiment of the present invention will be described in detail with reference to the drawings.

As shown in fig. 1A to 1C, in one embodiment, the electric bicycle 1 of the present invention includes a frame 10 and a battery lifting device 20, wherein the battery lifting device 20 is disposed on the frame 10, and the battery lifting device 20 includes a fixing bracket 210, a battery seat 220, a restoring force device 230 and a locking device 240. In this embodiment, the fixing bracket 210 is used to support the battery 30; the battery holder 220 is used for placing the battery 30 and can move along the lifting path P relative to the fixed bracket 210; the restoring force device 230 is connected to the battery holder 220 to provide a power for the battery holder 220 to ascend relative to the fixing bracket 210; the locking device 240 is selectively in an unlocked state and a locked state to allow or restrict the battery 30 to move relative to the fixing bracket 210. As shown in fig. 2A-1 and 2B, when the locking device 240 is in the locked state, the locking device 240 restricts the battery 30 from moving relative to the fixing bracket 210 to ensure that the battery 30 can provide power for the operation of the electric bicycle 1. As shown in fig. 2C to 2D, when the locking device 240 is in the unlocked state, the locking device 240 releases the restriction on the battery 30, so that the battery holder 220 can drive the battery 30 to ascend relative to the fixing bracket 210 by the power provided by the restoring force device 230.

As shown in FIG. 1A, in this embodiment, the frame 10 comprises a top tube 110, a bottom tube 120 and a seat tube 132, wherein the top end of the bottom tube 120 is connected to the top tube 110, and the middle portion thereof is inclined rearward and downward, such that the bottom end of the bottom tube 120 is connected to the seat tube 132, and the fixing bracket 210 of the battery lift device 20 is preferably disposed on the bottom tube 120 and extends along the bottom tube 120. Specifically, the upper tube 110 is a tube extending forward and rearward of the frame 10, and the upper tube 110 has a front end 112, an upper surface 114 and a lower surface 116, wherein the front end 112 of the upper tube 110 is close to the front wheel 130, and the upper surface 114 and the lower surface 116 of the upper tube 110 are two opposite surfaces respectively far away from and close to the ground in the radial direction of the tube. The lower tube 120 is connected to the lower surface 116 of the upper tube 110 and preferably extends rearwardly and downwardly from the lower surface 116 of the upper tube 110 proximate the front end 112. In this embodiment, the upper tube 110 further has a through hole 118, wherein the through hole 118 penetrates through the upper tube 110 to form a passage for the battery 30 to pass through the upper tube 110 when the battery 30 ascends. Specifically, the openings at the two ends of the through hole 118 are formed on the upper surface 114 and the lower surface 116 of the upper tube 110, respectively, and are close to the connection between the lower tube 120 and the upper tube 110. When the battery holder 220 lifts the battery 30, the battery 30 preferably rises along the lower tube 120 and partially protrudes from the lower surface 116 of the upper tube 110 through the through hole 118 to the upper surface 114 of the upper tube 110, so that the user can grasp the upper end of the battery 30 and draw the battery 30 out of the frame 10.

As shown in fig. 1C, the battery 30 has a battery long axis L. When the battery 30 is disposed on the battery holder 220, the battery long axis L of the battery 30 is preferably parallel to the extending direction of the fixing bracket 210, and the lifting path P and the extending direction a of the upper tube 110 form a preset angle θ. When the battery holder 220 carries the battery 30 and moves along the lifting path P, the long axis L of the battery is preferably kept parallel to the lifting path P, so that the upper end of the battery 30 protrudes from the upper surface 114 of the upper tube 110 through the through hole 118 at a predetermined included angle θ. Furthermore, the cell 30 has a long axis cross section in a direction perpendicular to the cell long axis L, and the size of the through hole 118 of the upper tube 110 is larger than the long axis cross section of the cell 30. Specifically, the

opening widths

118a, 118b of the through hole 118 on the lower surface 116 and the upper surface 114 are greater than the long-axis cross-sectional width W, and the

opening widths

118a, 118b of the through hole 118 can be adjusted according to the predetermined angle θ. For example, when the difference between the preset angle θ and 90 degrees is larger (i.e., the battery 30 is inclined more with respect to the upper tube 110), the

opening widths

118a, 118b of the through holes 118 are larger; the

opening widths

118a, 118b of the through-holes 118 are smaller as the preset angle θ is closer to 90 degrees (i.e., the more upright the battery 30 is with respect to the upper tube 110). In this embodiment, the predetermined angle θ is preferably greater than 90 degrees, but not limited thereto. In other embodiments, the predetermined angle θ may be smaller than or equal to 90 degrees according to the connection angle design of the upper tube 110 and the lower tube 120.

The battery lifting device 20 further comprises a stopper 250, wherein the stopper 250 is movably disposed corresponding to the through hole 118 to selectively block and avoid the lifting path P. Specifically, the stopper 250 is rotatable relative to the upper surface 114 of the upper tube 110 to selectively at least partially shield the opening of the through hole 118 in the upper surface 114 of the upper tube 110 and further shield the lifting path P. In this embodiment, when the locking device 240 is in the locked state, the locking device 240 may interfere with at least one of the battery 30 and the stopper 250, so that the battery holder 220 cannot drive the battery 30 to ascend along the ascending and descending path P, and the battery holder 220 and the battery 30 are fixed at fixed positions in the ascending and descending path P. The details of the battery lifting device 20 according to the embodiment of the present invention will be described later with reference to the drawings.

As shown in fig. 2A-1 to 2D, in one embodiment, the restoring force device 230 is an air pressure rod, wherein the air pressure rod includes a body portion 232 and a telescopic rod 234, and the telescopic rod 234 is extended relative to the body portion 232 by the air pressure of the body portion 232 to provide a power for raising the battery holder 220. The fixed bracket 210 has a slide groove 212 to guide the movement of the telescopic bar 234. The restoring force device 230 and the battery holder 220 are disposed on opposite sides of the fixing bracket 210 relative to the sliding slot 212, so that the telescopic rod 234 is connected to the battery holder 220 through the sliding slot 212 and extends and retracts relative to the main body 232 along the sliding slot 212. Specifically, the sliding groove 212 extends along the long axis direction of the fixing bracket 210, and the extending direction of the sliding groove 212 is parallel to the lifting path P. The battery holder 220 includes a holder portion 222 and a connecting portion 224, wherein the holder portion 222 is used for placing the battery 30, and the connecting portion 224 extends along the fixing bracket 210 and is used for connecting the telescopic rod 234. Furthermore, the base portion 222 of the battery base 220 may have an electrical contact for electrically connecting with the battery 30, but not limited thereto. In this embodiment, the base portion 222 and the connecting portion 224 are connected to form the L-shaped battery base 220, and the extension rod 234 and the base portion 222 are respectively connected to two opposite ends (e.g., upper end and lower end) of the connecting portion 224. In this embodiment, the extension rod 234 may be connected to the connecting portion 224 by a bolt 236. Specifically, the bolt 236 may pass through the sliding slot 212 from one end of the telescopic rod 234 and be locked to the connecting portion 234, so that when the telescopic rod 234 extends along the sliding slot 212 and extends relative to the body portion 232, the battery holder 220 may be driven to move relative to the fixing bracket 210, and further, the battery 30 may move relative to the fixing bracket 210.

Furthermore, the fixing bracket 210 may have a limiting portion 214 to limit the lateral displacement of the battery 30 relative to the fixing bracket 210. Specifically, the position-limiting portion 214 is preferably disposed at the other end of the battery holder 220 in the longitudinal direction of the fixing bracket 210, for example, closer to the upper tube 110. In this embodiment, the position-limiting portion 214 is a position-limiting ring protruding from the fixing bracket 210 to surround the side of the battery 30, but not limited thereto. In other embodiments, the position-limiting portion 214 may be a position-limiting rod or a position-limiting plate protruding from two sides of the fixing bracket 210 to be located at a side of the battery 30, so as to limit the lateral displacement of the battery 30 relative to the fixing bracket 210. In addition, the position-limiting portions 214 may be spaced along the long axis of the fixing bracket 210, and are not limited to the embodiment shown.

The locking device 240 includes a lock body 242, a tongue piece 244 and an interference unit 246, wherein the tongue piece 244 extends and contracts relative to the lock body 242 to correspond to the unlocking state and the locking state of the lock body 242, so that the interference unit 246 interferes with at least one of the battery 30 and the stopper 250. Specifically, the interference unit 246 includes a fixing base 245, an interference member 247, and an elastic member 248, wherein the interference member 247 is movable relative to the fixing base 245 to selectively compress the elastic member 248. In this embodiment, the locking device 240 is preferably disposed corresponding to the fixing bracket 210, so that the fixing bracket 210 further has the positioning plate 215, and the lock body 242 and the interference unit 246 are respectively disposed on two sides of the positioning plate 215. In addition, the positioning plate 215 further has an opening 215a, and the fixing base 245 has a hole 245a, wherein the opening 215a and the hole 245a are connected to form a passage for the tongue 244 to reach the interference element 247, but not limited thereto. In other embodiments, the locking device 240 may be fixed to other components of the electric bicycle, such as the upper tube 110, by other methods. An embodiment in which the interference member 247 may simultaneously interfere with the battery 30 and the stopper 250 will be described later, but not limited thereto. In other embodiments, the interference member 247 can be designed to interfere with only one of the battery 30 or the stopper 250. It should be noted that the battery lifting device 20 preferably includes the stopper 250, but when the interference member 247 is designed to only interfere with the battery 30, the battery lifting device 20 may or may not have the stopper 250.

In this embodiment, the interference unit 246 is fixed to the positioning plate 215 by the fixing base 245, so that the interference member 247 can move relative to the fixing base 245 and the positioning plate 215. The interference member 247 has two

flanges

247a, 247b to interfere with the battery 30 and the stopper 250, respectively. The interference piece 247 may be a block having two sides of different lengths such that the ends of the two sides form

flanges

247a, 247b with a space 247c between the two sides. The stopper 250 has a groove 252 corresponding to the flange 247 b. The elastic member 248 may be a spring, and is disposed in the space 247c of the interference member 247 and between the interference member 247 and the fixing seat 245. In this embodiment, the lock body 242 is a key lock, but in other embodiments the lock body 242 may be a combination lock. The tongue 244 is coupled to the lock body 242 such that the tongue 244 is movable relative to the lock body 242 when the lock body 242 is in the unlocked state. When the lock body 242 is in the locked state, the tongue 244 cannot move relative to the lock body 242.

In addition, the fixed bracket 210 may further have a first pivot portion 216, and the stopper 250 correspondingly has a second pivot portion 254, wherein the second pivot portion 254 is pivoted with the first pivot portion 216, so that the stopper 250 can rotate relative to the fixed bracket 210 to further shield or avoid the lifting path P. The first pivoting portion 216 and the locking device 240 are preferably disposed on opposite sides of the fixing frame 210, respectively, such that the stopping member 250 rotates away from or approaches the locking device 240 when rotating relative to the fixing frame 210. In this embodiment, the first pivot portion 216 is preferably disposed on a side of the limiting portion 214 away from the sliding slot 212. The second pivoting portion 254 and the recess 252 are respectively disposed at two opposite ends of the stopping member 250 to correspondingly pivot the first pivoting portion 216. It should be noted that, although the stopper 250 is shown to be rotatably connected to the fixing bracket 210 and disposed on the upper tube 110 corresponding to the through hole 118 in the embodiment, the disclosure is not limited thereto. In other embodiments, the stopper 250 can be directly disposed on the upper tube 110 and rotatably connected to the upper tube 110, so that the stopper 250 can selectively rotate relative to the fixing bracket 210 to approach or separate from the locking device 240, thereby shielding or avoiding the lifting path P.

Furthermore, the stopper 250 is preferably designed such that when the stopper 250 does not interfere with the locking device 240, the stopper 250 can automatically rotate relative to the fixing bracket 210, and thus rotate away from the through hole 118 of the upper tube 110 to avoid the lifting path P. For example, a torsion spring (not shown) may be disposed at the pivot joint of the first pivot portion 216 and the second pivot portion 254, such that when the interference on the stopper 250 is removed, the stopper 250 can rotate relative to the fixed bracket 210 by the restoring force of the torsion spring to move away from the through hole 118 and escape from the lifting path P, but not limited thereto. In other embodiments, the user can manually rotate the stopper 250 relative to the fixing bracket 210.

Referring to fig. 2A-1 and 2B in conjunction with fig. 1A, a state in which the battery 30 is disposed in the battery lifting device 20 is described. As shown in fig. 2A-1 and 2B, when the battery 30 is disposed on the battery lifting device 20, the stopper 250 rotates to cover the through hole 118 (i.e., above the battery 30) to cover the lifting path P, and the extension rod 234 of the restoring force device 230 is disposed at the bottom end of the sliding slot 212, such that the battery holder 220 is disposed at the bottom end of the fixing bracket 210. At this time, the lock body 242 is in a locked state, such that the tongue piece 244 is extended to push the interference unit 246 to interfere with at least one of the battery 30 and the stopper 250. Specifically, when the lock body 242 is in the locked state, the tongue piece 244 extends through the opening 215a of the positioning plate 215 and the hole 245a of the fixing seat 245 to push the interference piece 247 to move toward the battery 30 and the stopper 250 and compress the elastic piece 248, the movement of the interference piece 247 causes the flange 247a to press against the top of the battery 30, and the flange 247b is engaged with the groove 252 of the stopper 250. Thereby, the battery 30 can be stably mounted on the battery lifting device 20 to provide power to the electric bicycle 1.

The operation of raising the battery 30 from the battery lifting device 20 will be described with reference to fig. 2C and 2D in conjunction with fig. 1B. As shown in fig. 2C and 2D, when the lock body 242 is in the unlocked state, the tongue piece 244 can be retracted to release the interference unit 246 from the battery 30 and/or the stopper 250. Specifically, the user can rotate the lock body 242 by the key 40 or input a correct code to unlock the lock, so as to allow the tongue piece 244 to become movable, or even to make the tongue piece 244 move to retract by the unlocking action. At this time, the tongue piece 244 can be retracted toward the lock body 242, and the compressed elastic member 248 provides a restoring force to drive the interference member 247 to move away from the battery 30 and the stopper 250 (i.e., move in a direction to retract the tongue piece 244), so that the flange 247a is separated from the top of the battery 30, and the flange 247b is separated from the groove 252 of the stopper 250 to release the interference with the battery 30 and the stopper 250. At this time, the user can manually rotate the stopper 250 or the stopper 250 can automatically rotate by the restoring force of the torsion spring, so that the stopper 250 rotates away from the locking device 240 to avoid the lifting path P, and the lifting path P is unobstructed. At this time, the expansion link 234 of the restoring force device 230 slides from the bottom end of the sliding slot 212 to the top end of the sliding slot 212 by the air pressure of the main body 232, and drives the battery holder 220 and the battery 30 to ascend along the ascending and descending path P by the predetermined distance D relative to the fixed bracket 210, so that the upper end of the battery 30 passes through the through hole 118 of the upper tube 110 by the predetermined included angle θ and protrudes out of the upper surface 114 of the upper tube 110, thereby facilitating the extraction of the battery 30. In this way, the user can easily take out the battery 30 from the frame 10 by grasping the upper end of the battery 30.

When the battery 30 is to be installed, the locking device 240 is in an unlocked state such that the tongue piece 244 is movable relative to the lock body 242. At this time, the user can insert the battery 30 into the through hole 118 from the upper surface 114 of the upper tube 110 and place the battery 30 on the seat portion 222 of the battery seat 220 through the position-limiting portion 214, and apply a force sufficient to overcome the restoring force of the restoring force device 230 to the battery 30, so that the battery 30 and the battery seat 220 move toward the bottom end of the fixing bracket 210, and drive the expansion link 234 of the restoring force device 230 to move toward the bottom end of the sliding slot 212. Then, the stopper 250 can be rotated relative to the fixing bracket 210 to approach the interference member 247, i.e., the stopper 250 is rotated to cover a portion of the through hole 118 (i.e., above the battery 30) to block the ascending/descending diameter P. In this state, the user can turn the key 40 or dial the combination lock to change the lock body 242 to the locked state, and further the tongue piece 244 is in the extended state and cannot retract and push against the interference piece 247, so that the interference piece 247 compresses the elastic piece 248 and the flanges 247a and 247B interfere with the top of the battery 30 and the groove 252 of the stopper 250 respectively, and the lock state is returned to the locked state shown in fig. 2A-1 and fig. 2B.

In addition, the fixing bracket 210 may have other guiding designs, not limited to the sliding slot 212. In another embodiment, as shown in fig. 3A to 3C, the fixing bracket 210 ', the restoring force device 230 ' and the battery holder 220 ' are guided by the sliding rail 217 and the sliding block 218. In the following, only the differences from the embodiment of fig. 2A-1 to 2D will be focused, and other elements such as the locking device 240 and the stopper 250 can be referred to the related description of the above embodiment. In this embodiment, the fixing bracket 210 'includes a sliding rail 217 and a sliding block 218, wherein the sliding block 218 is slidably sleeved on the sliding rail 217 and connected to the battery holder 220', and the telescopic rod 234 is connected to the sliding block 218 to drive the sliding block 218 and the battery holder 220 to move along the sliding rail 217. In this embodiment, the fixing bracket 210' has two sets of sliding rails 217 and sliding blocks 218, but not limited thereto. In other embodiments, the fixing bracket 210' may have only one set of sliding rail 217 and sliding block 218. The slide rail 217 extends along the elevation path P (i.e., the long axis direction of the fixing bracket 210'). The extension rods 234 of the battery holder 220 'and the restoring force device 230' are respectively connected to two ends (e.g., the lower end and the upper end) of the sliding block 218, and the battery holder 220 'and the restoring force device 230' are respectively located at two opposite sides (e.g., the right side and the left side) of the sliding block 218. In this embodiment, the battery holder 220' may have a plate design similar to the holder portion 222, but not limited thereto. The restoring force device 230' is preferably disposed between the two sliding rails 217, such that the telescopic rod 234 is connected to the sliding blocks 218 on both sides.

As shown in fig. 3A, when the battery 30 is disposed on the battery lifting device 20, the stopper 250 rotates to block the lifting path P, and the sliding block 218 is disposed at the lower end of the sliding rail 217, such that the extension rod 234 of the restoring force device 230 ' is retracted relative to the main body 232, and the battery holder 220 ' is disposed at the bottom end of the fixing bracket 210 '. At this time, the lock body 242 is in the locked state, the tongue piece 244 is extended to push the interference piece 247 to move toward the battery 30 and the stopper 250 and compress the elastic piece 248, so that the flange 247a presses against the top of the battery 30, and the flange 247b is engaged with the groove 252 of the stopper 250. Thus, the battery 30 can be stably mounted on the battery lifting device to provide power to the electric bicycle 1.

As shown in fig. 3B and 3C, when the lock body 242 is in the unlocked state, the tongue piece 244 can be retracted toward the lock body 242, and the compressed elastic member 248 provides a restoring force to drive the interference member 247 to move away from the battery 30 and the stopper 250 (i.e., to move the tongue piece 244 in a direction to retract), so that the flange 247a is separated from the top of the battery 30, and the flange 247B is separated from the groove 252 of the stopper 250 to release the interference with the battery 30 and the stopper 250. At this time, the stopper 250 may be rotated away from the locking device 240 to avoid the lifting path P, so that the lifting path P is unobstructed. Meanwhile, the extension rod 234 of the restoring force device 230' extends relative to the main body 232 under the air pressure of the main body 232 to drive the sliding block 218 and the battery holder 220 (together with the battery 30) to move from the lower end to the upper end of the sliding rail 217 and to ascend along the ascending and descending path P by a predetermined distance D relative to the fixing bracket 210, so that the upper end of the battery 30 passes through the through hole 118 of the upper tube 110 by a predetermined included angle θ and protrudes out of the upper surface 114 of the upper tube 110, thereby facilitating the extraction of the battery 30. When the battery 30 is installed, the battery 30 is inserted into the through hole 118 and then placed on the seat portion 222 in a manner similar to the operation of the previous embodiment, and then the locking operation of the locking device 240 is performed, and the state of fig. 3A is returned, which is not described herein again.

Furthermore, the frame design of the frame 10 of the electric bicycle 1 can further include various decorative plates and buffering materials to increase the overall appearance aesthetic feeling and the installation stability. As shown in fig. 1A, the lower decorative plate 290 is disposed at one side of the lower tube 120 to cover the lower tube 120 and the restoring force device 230, and the positioning decorative plate 270 and the upper decorative plate 280 are disposed on the upper tube 110 and the stopper 250, respectively, to enhance the aesthetic appearance of the electric bicycle 1. Specifically, as shown in fig. 4A to 4C, in one embodiment, the positioning decoration plate 270 is disposed along the extending direction of the upper tube 110 and has a positioning tube 272 extending downward, wherein the positioning tube 272 has a tube hole 270a for allowing the battery 30 to pass through the positioning decoration plate 270. When the positioning ornamental plate 270 is disposed on the upper tube 110, the positioning tube 272 preferably extends at least partially into the through hole 118 of the upper tube 110, and the tube hole 270a communicates with the through hole 118 to serve as a guide passage for the battery 30 to ascend. In another embodiment, the length of the positioning tube 272 may be designed to extend from the upper surface 114 of the upper tube 110 into the through hole 118 and extend downward to abut against the upper edge of the position-limiting portion 214 of the fixing bracket 210. Further, the positioning tube 272 has a first opening 272a and a second opening 272b to correspond to the

flanges

247a, 247b of the interference piece 247, respectively. Specifically, when the locking device 240 is in the locked state, the

flanges

247a and 247b of the interference member 247 respectively extend into the first opening 272a and the second opening 272b of the positioning tube 272, and further interfere with the battery 30 and the stopper 250. When the locking device 240 is in the unlocked state, the

flanges

247a, 247b of the interference member 247 can be withdrawn from the first opening 272a and the second opening 272b of the positioning tube 272 to release the interference with the battery 30 and the stopper 250. The upper trim plate 280 is disposed on the stopper 250, wherein when the stopper 250 interferes with the locking device 240, the upper trim plate 280 preferably substantially covers a gap between the stopper 250 and the upper surface 114 of the upper tube 110, so that the positioning trim plate 270 and the upper trim plate 280 have an integral appearance. When the stopper 250 rotates relative to the fixing bracket 210 to escape from the lifting path P, the upper pipe decoration plate 280 rotates together with the stopper 250 to expose the pipe hole 270a, so that the lifting path P is unobstructed.

In addition, the battery lifting device 20 further includes a buffer 260, wherein the buffer 260 is disposed on the lower surface of the stopper 250, and when the stopper 250 blocks the lifting path P, the buffer 260 is pressed against the top of the rear side of the battery 30. The buffer 260 may be made of elastic material such as rubber, foam, or silicone. When the flange 247a of the interference member 247 abuts against the top of the front side of the battery 30 and the stopper 250 blocks the lifting path P, the stopper 250 and the top of the rear side of the battery 30 are pressed by the buffer material 260 to deform, thereby increasing the stability of the battery 30.

In the above embodiments, the restoring force device 230 is an air pressure rod, but not limited thereto. In other embodiments, any device that provides a restoring force to the battery holder 220 may be used as the restoring force device. As shown in fig. 5A and 5B, the restoring force device 230 ″ is an elastic member (e.g., a spring) disposed between the battery holder 220 and the fixing bracket 210. As shown in fig. 5B, when the battery 30 is placed on the battery lifting device and the locking device 240 is in a locked state, the elastic member is compressed. When the locking device 240 is unlocked and the lifting path P is clear, the compressed elastic member provides a restoring force to push the battery holder 220 and the battery 30 to lift a predetermined distance D along the lifting path P, such that the battery 30 protrudes from the upper surface 114 of the upper tube 110. Therefore, the battery 30 can be easily extracted from the upper tube 110 without a space for a user to insert and extract the battery between the upper tube 110 and the lower tube 120, and a larger battery can be installed by effectively utilizing the space of the frame.

In the above embodiments, the battery carrying device of the present invention includes a battery seat 220, a stopper 250, a lock body 242 and an interference member 247. The battery holder 220 can be used for carrying the battery 30, and the battery can move along a taking-out path (such as a lifting path P) to be separated from the battery holder 220; the stopper 250 is used to selectively block the extraction path of the battery 30; the lock body 242 is selectively in an unlocked state or a locked state; the interference member 247 is movable relative to the lock body 242 corresponding to the unlocked state and the locked state of the lock body 242, and the interference member 247 includes a first interference portion (e.g., a flange 247a) and a second interference portion (e.g., a flange 247b) corresponding to the battery 30 and the stopper 250, respectively. As shown in fig. 2B, when the lock body 242 is in the locked state, the first interference portion (e.g., the flange 247a) and the second interference portion (e.g., the flange 247B) respectively interfere with the battery 30 and the stopper 250 to limit the movement of the battery 30 along the extraction path (e.g., the lifting path P) and keep the stopper 250 blocking the extraction path. When the lock body 242 is in the unlocked state as shown in fig. 2D, the first interference portion (e.g., the flange 247a) and the second interference portion (e.g., the flange 247b) respectively interfere with the battery 30 and the stopper 250, so as to allow the battery 30 to move along the taking-out path (e.g., the lifting path P) and allow the stopper 250 to rotate away from the taking-out path by the first pivot portion 216.

Furthermore, as described in the above embodiments, the locking device 240 may further include a tongue 244 and a resilient member 248, wherein the tongue 244 is retractable relative to the lock body 242 corresponding to the unlocking state and the locking state of the lock body 242. When the lock body 242 is in the locked state, the tongue piece 244 extends relative to the lock body 244 to push the interference member 247 and compress the elastic member 248, so that the first interference portion (e.g., the flange 247a) and the second interference portion (e.g., the flange 247b) interfere with the battery 30 and the stopper 250, respectively. When the lock body 242 is in the unlocked state, the tongue piece 244 retracts relative to the lock body 242 and the elastic member 248 provides a restoring force to drive the interference member 247 to move towards the lock body 242, so as to release the interference of the first interference portion (e.g., the flange 247a) and the second interference portion (e.g., the flange 247b) with the battery 30 and the stopper 250. In other words, when the locking device 240 is installed on the frame 10, the lock body 242 is disposed at the front end of the upper tube 110, and the interference member 247 moves relative to the lock body 242 to approach or separate from the through hole 118 corresponding to the unlocked state and the locked state of the lock body 242.

In the above embodiment, the lock body 242 is disposed on the upper tube, and the taking-out path (i.e. the lifting path P) of the battery 30 is parallel to the extending direction of the lower tube 120, but not limited thereto. In another embodiment, as shown in fig. 6A to 6C, the battery supporting device 241 is disposed on the lower tube 120 ' of the frame 10 ', and the lower tube 120 ' has the receiving groove 122. The battery holder 220 ″ of the battery carrier 241 is disposed in the receiving cavity 122 for carrying the battery 30. In this embodiment, the receiving groove 122 is disposed along the extending length of the lower tube 120 ', such that the opening of the receiving groove 122 is disposed along the extending length of the lower tube 120', and an angle is formed between the taking-out path P 'of the battery 30 and the extending direction of the lower tube 120'. For example, the removal path P' of the battery 30 may be: (1) parallel to the radial direction of the lower tube 120 ', or (2) a path in which the front upper end of the battery 30 rotates toward the rear upper direction of the lower tube 120' with the rear lower end of the battery 30 as the axis. In the above embodiment, the interference member 247 has the

flanges

247a and 247b as interference portions interfering with the battery 30 and the stopper 250, respectively, and the elastic member 248 is used to provide a restoring force for removing the interference, but not limited thereto.

Specifically, in this embodiment, the battery carrying device 241 includes a battery holder 220 ", a stopper 250 ', a lock body 242' and an interference piece 247', wherein the lock body 242' is disposed on the lower tube 120 ', and the lock body 242' can be selectively in an unlocked state or a locked state. The battery holder 220 "is preferably located at the lower end of the receiving groove 122, and when the battery 30 is carried in the receiving groove 122 by the battery holder 220" (i.e. when the battery 30 is mounted on the bicycle), the long axis direction of the battery 30 is preferably parallel to the extending direction of the lower tube 120'. The interference piece 247' is disposed at the upper end of the receiving groove 122 corresponding to the battery holder 220 ", and the interference piece 247' is movable relative to the lock body 242 ' corresponding to the locking state and the unlocking state of the lock body 242 ' to interfere with or disengage from the battery 30 and the stopper 250 '. In other words, the interference piece 247 'corresponds to the unlocking state and the locking state of the lock body 242', and can move relative to the lock body 242 'to approach or separate from the battery seat 220 ″ to interfere or disengage with the battery 30 and the stopper 250'. The stopper 250 ' is preferably implemented as a cover plate and is movably disposed at the lower tube 120 ' to selectively block the withdrawal path P ' of the battery 30. Specifically, the stopper 250 ' can rotate relative to the surface of the lower tube 120 ' to selectively shield the opening of the receiving slot 122 and thus the extraction path P '. For example, the lower tube 120 ' has a first pivot portion 216 ' corresponding to the lock body 242 ' and the opposite end of the battery seat 220 ", and the stopping member 250 ' has a second pivot portion 254 ' corresponding to the lock body 242 ', wherein the second pivot portion 254 ' is pivoted to the first pivot portion 216 ', so that the stopping member 250 ' can rotate relative to the lower tube 120 ' to block or avoid the removing path P '. That is, the stop member 250 ' rotates away from or toward the lock body 242 ' when rotating relative to the lower tube 120 '. As shown in fig. 6A, when the lock body 242 'is in the locked state, the cover plate (i.e., the stopper 250') covers the opening of the receiving groove 122, so that the frame 10 'has a better integral appearance and covers the removal path P' of the battery 30. As shown in fig. 6B, when the lock body 242 ' is in the unlocked state, the cover plate (i.e., the stopper 250 ') can rotate relative to the lower tube 120 ' to allow the battery 30 to enter and exit the battery holder 220 ″.

As shown in fig. 6C and 7A, the interference piece 247 'includes a first interference portion 247A' and a second interference portion 247b 'to correspond to the battery 30 and the stopper 250', respectively. In this embodiment, the interference member 247 'is preferably implemented as a mechanism integrally linked with the lock body 242' so as to be capable of extending and contracting relative to the lock body 242 'in accordance with the unlocking state and the locking state of the lock body 242'. For example, as shown in fig. 8A to 8B, one end of the interference piece 247' may be implemented as a coupling portion 247c ', wherein one end (i.e., the coupling end 249a) of the coupling portion 247c ' is coupled to the lock body 242 ' so that the interference piece 247' is interlocked with the lock body 242 ' corresponding to the unlocking state and the locking state, and the other end (i.e., the connection end 249B) of the coupling portion 247c ' is connected to the first interference portion 247a ' and the second interference portion 247B '. In this embodiment, the coupling portion 247c ' may be implemented as a cylinder extending parallel to the extending direction of the lower tube 120 ', wherein the left end of the coupling portion 247c ' is used as the coupling end 249a, the right end of the coupling portion 247c ' is used as the first interference portion 247a ', and the second interference portion 247b ' has an inverted L shape to be connected to the middle portion of the coupling portion 247c '. In another aspect, the coupling portion 247c 'may be implemented as a member having a T shape or an L shape, wherein the coupling end 249a of the coupling portion 247 c' is coupled to the lock body 242, and the first interference portion 247a 'and the second interference portion 247 b' may be implemented as two posts extending from two sides of the connection end 249b of the coupling portion 247c 'toward the opposite direction to the lock body 242'. In other words, the extending direction of the coupling end of the coupling portion 247c 'is preferably parallel to the extending direction of the lower tube 120', and the extending direction of the connecting end of the coupling portion 247c 'is preferably parallel to the radial direction of the lower tube 120'. Thereby, the extending direction of the first interference portion 247a 'and the second interference portion 247 b' is substantially parallel to the extending direction of the lower tube 120 ', and the first interference portion 247 a' and the second interference portion 247b 'are disposed along the taking-out path P' of the battery 30. That is, the first interference portion 247a 'and the second interference portion 247 b' are disposed along the radial direction of the lower tube 120 ', wherein the first interference portion 247 a' is closer to the bottom of the receiving groove 122, i.e. farther from the opening of the receiving groove 122; the second interference portion 247b ' is closer to the opening of the receiving slot 122, and the extension length of the first interference portion 247a ' is preferably greater than the extension length of the second interference portion 247b '.

In this embodiment, the lock body 242' may be implemented as a key lock. As shown in fig. 6C and 7A, when the key 40 rotates the lock cylinder of the lock body 242 ' to lock, the rotation of the lock cylinder drives the interference piece 247' to extend away from the lock body 242 ', so that the interference piece 247' moves to protrude toward the battery seat 220 ", increasing the protruding length of the interference piece 247' in the receiving slot 122, and further causing the first interference portion 247A ' and the second interference portion 247b ' to interfere with the battery 30 and the stopper ', for example, the first interference portion 247A ' presses against the top of the battery 30, and the second interference portion 247b ' protrudes into the groove 252 ' of the stopper 250 ', so as to limit the rotation of the stopper 250 ' relative to the lower tube 120 ' and limit the movement of the battery 30 along the removal path P '. Thereby, the battery 30 can be stably fixed between the battery holder 220 ″ and the interference 247 '(i.e., fixed to the lower tube 120').

As shown in fig. 7B, when the key 40 reversely rotates the lock cylinder of the lock body 242 'to unlock, the rotation of the lock cylinder can drive the interference piece 247' to retract toward the lock body 242 ', so that the interference piece 247' is away from the battery holder 220 ", the protruding length of the interference piece 247 'in the receiving slot 122 is shortened (i.e. away from the battery 30 and the stopper 250'), and the interference between the first interference portion 247a 'and the second interference portion 247B' and the battery 30 and the stopper 250 'is released, for example, the first interference portion 247 a' is away from the top of the battery 30, and the second interference portion 247B 'is disengaged from the groove 252 of the stopper 250'. Thus, as shown in fig. 6B and 7C, the stopper 250 'can rotate relative to the lower tube 120' to allow the battery 30 to move in and out of the receiving slot 122 and to be separated from the battery seat 220 ″, i.e., the stopper 250 'avoids the removal path P' and exposes the battery 30, thereby allowing the user to replace the battery 30 from the battery seat 220 ″.

The present invention has been described in terms of the above embodiments, which are, however, intended to be illustrative only and not limiting. Other modifications to the exemplary embodiments specifically illustrated herein will be apparent to those skilled in the art without departing from the spirit of the utility model. Accordingly, such modifications are also encompassed within the scope of the present invention and are limited only by the following claims.

Claims

1. An electric bicycle frame, comprising:

a lower tube having a receiving part into which a battery is inserted, the receiving part being configured to receive the battery; and

an upper tube extending transversely with respect to the lower tube, the upper tube having a front end, a rear end opposite the front end, and a through hole communicating with the receiving portion;

wherein the through hole for inserting the battery into the accommodating portion is formed to penetrate the upper tube; the rear end of the upper tube is connected with the seat tube and the front end is connected with a component comprising a head tube and a handle; the long shaft of the lower tube is arranged to make the lower end of the lower tube located in front of the rear wheel and allow the battery to be inserted into and taken out from the accommodating part without interfering with the handle.

2. The electric bicycle frame according to claim 1, further comprising a stopper movably disposed adjacent to the through hole to selectively at least partially block the through hole of the upper tube.

3. The frame for electric bicycles of claim 2, further comprising a buffer member disposed on the stopper member, wherein the buffer member is pressed against the battery when the stopper member blocks the through hole.

4. The frame for electric bicycles of claim 1, further comprising a locking device disposed on the top tube, wherein the locking device is selectively in an unlocked state and a locked state; when the locking device is in the locking state, the locking device interferes with the battery to limit the battery to move relative to the accommodating part; when the locking device is in the unlocking state, the interference between the locking device and the battery is released, so that the battery is allowed to move relative to the accommodating part.

5. The electric bicycle frame according to claim 4, wherein the locking device comprises a lock body, a tongue piece and an interference unit, the tongue piece is corresponding to the unlocking state and the locking state of the lock body and is telescopic relative to the lock body, when the lock body is in the locking state, the tongue piece is extended to push the interference unit to interfere with the battery; when the lock body is in the unlocking state, the tongue piece retracts to release the interference of the interference unit and the battery.

6. The electric bicycle frame according to claim 4, further comprising a stopper movably disposed adjacent to the through hole to selectively at least partially block the through hole of the top tube, wherein when the stopper blocks the through hole and the locking device is in the locked state, the locking device further interferes with the stopper to limit the movement of the stopper relative to the top tube.

7. The electric bicycle frame of claim 1, further comprising a restoring force device disposed on the down tube, wherein the restoring force device provides a motive force for the battery to rise relative to the down tube.

8. The frame for electric bicycles of claim 7, wherein the restoring force device is a pneumatic rod, the pneumatic rod comprises a body and a telescopic rod, the telescopic rod is extended relative to the body by the pneumatic force of the body to provide the power for the battery to rise.

9. The electric bicycle frame according to claim 7, wherein the restoring force device is an elastic member disposed in the accommodating portion and under the battery.

10. The electric bicycle frame according to claim 1, wherein the battery has a cross section perpendicular to a long axis of the battery, the cross section having a size smaller than that of the through hole.

11. The electric bicycle frame according to claim 1, wherein the down tube extends downward and rearward to be connected to a lower end of the seat tube.

12. An electric bicycle frame, comprising:

an upper tube extending transversely relative to the upper tube, the upper tube having a front end, a rear end opposite the front end, and a through hole communicating with the receiving portion;

wherein the through hole for inserting the battery into the accommodating portion is formed to penetrate the upper tube; the rear end of the upper tube is connected with the seat tube and the front end is connected with a component comprising a head tube and a handle; the long shaft of the lower tube is configured to allow the battery to be inserted into the accommodating portion and removed from the accommodating portion without interfering with the handle, so that the battery passes through the through hole at a predetermined angle greater than 90 degrees relative to the rear end of the upper tube.

13. The electric bicycle frame of claim 12, wherein the lower end of the down tube is proximate the motor.

14. The motorized bicycle rack of claim 12, wherein the lower end of the down tube is proximate to the pedal-containing assembly.

15. The motorized bicycle rack of claim 12, wherein the lower end of the down tube is positioned proximate a front of the rear wheel.

16. The motorized bicycle rack of claim 12, wherein the through-hole is positioned proximate to the handle and distal from the seat tube.

17. The motorized bicycle rack of claim 12, wherein the upper end of the down tube is located proximate to the handle and distal from the seat tube.