TWI697440B - Power supply device, battery fixing base, and battery module of electric bicycle - Google Patents

Abstract

A battery fixing base is provided, including a first mount, a second mount, a first lateral plate, and a second lateral plate. The second mount has a connecting terminal, and the first lateral plate and the second lateral plate are connected to the first mount and the second mount. The connecting terminal is disposed between the first lateral plate and the second lateral plate, and both the first lateral plate and the second lateral plate have a non-rectangular cross-section.

Description

Power supply device, battery holder and battery module of electric bicycle

The invention relates to a power supply device. More specifically, the present invention relates to a power supply device for an electric bicycle.

An electric bicycle is a vehicle that uses a rechargeable battery as an energy source and uses an electric motor to provide power. At present, electric bicycles have become a very common means of transportation, which not only allows people to quickly and easily move short distances, but also does not produce any carbon dioxide when moving, so it can save energy and protect the environment. Therefore, electric bicycles have gradually become a means of transportation for many people to move short distances.

However, generally speaking, the appearance of an electric bicycle is similar to a bicycle or a motorcycle, and the space for installing the aforementioned rechargeable battery is limited. Therefore, the installation of the rechargeable battery may cause inconvenience for the user to ride. Therefore, how to solve the aforementioned problems has become an important issue.

In order to solve the above-mentioned conventional problems, the present invention provides a battery fixing base, which includes a first mounting table, a second mounting table, a first side plate, and a second side plate. The second installation platform has a connection terminal, and the first side plate and the second side plate are connected to the aforementioned first installation platform and the second installation platform. Wherein, the connecting terminal is arranged between the first side plate and the second side plate, and both the first side plate and the second side plate have a non-rectangular cross section.

The present invention further provides a power supply device for an electric bicycle, which includes a battery fixing seat and a battery module. The battery fixing base is fixed on a shell of the electric bicycle, and includes a first installation stand, a second installation stand, a first side plate, and a second side plate. The second installation platform has a connection terminal, and the first side plate and the second side plate are connected to the aforementioned first installation platform and the second installation platform. Wherein, the connecting terminal is arranged between the first side plate and the second side plate, and the first side plate and the second side plate respectively have a first guide post and a second guide post. The first guide post extends toward the second side plate, and the second guide post extends toward the first side plate. The battery module is detachably arranged on the battery holder, and includes a body, an electrical connection part, a first guide groove, a second guide groove, and a contact part. The body has a first surface and a second surface, and the first surface is opposite to the second surface. The electrical connection part is arranged on the main body. The first guide groove is formed on the first surface, and the first guide column is slidably connected to the first guide groove, wherein the first guide groove has an arc segment and a linear segment connected to each other. The second guide groove is formed on the second surface, and the second guide post is connected to the second guide groove in a slidable manner. The abutting part is arranged on the body. When the first guiding column is located at a first position in the arc segment, the electrical connection part contacts the connection terminal. When the first guide column slides from the first position along the arc segment to a second position, the battery module rotates about a first rotation axis relative to the battery holder, wherein the second position is located at the arc segment and the linear segment Of the connection.

The present invention also provides a battery module, which includes at least two battery cell components and at least one metal connection component. The metal connection component is electrically connected to the aforementioned battery cell component, and includes a first plate body, a second plate body, and an intermediate plate body. The first board is connected to one of the aforementioned battery core components, and the second board is connected to the other of the aforementioned battery components. The middle plate body connects the first plate body and the second plate body, wherein the normal direction of the middle plate body is substantially perpendicular to the normal direction of the first plate body and the second plate body.

The power supply device of an electric bicycle according to an embodiment of the present invention will be described below. However, it can be easily understood that the embodiments of the present invention provide many suitable inventive concepts and can be implemented in a wide variety of specific backgrounds. The specific embodiments disclosed are only used to illustrate the use of the present invention in a specific way, and are not used to limit the scope of the present invention.

Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meanings commonly understood by the general artisans to whom the disclosure belongs. It is understandable that these terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning consistent with the relevant technology and the background or context of this disclosure, and not in an idealized or overly formal way Interpretation, unless specifically defined here.

First, referring to Figure 1, the power supply device P of an embodiment of the present invention can be disposed in the housing 10 of an electric bicycle B, and can be electrically connected to the drive motor 20 of the electric bicycle B to provide power to the aforementioned drive motor 20. After receiving the aforementioned power, the driving motor 20 can operate and drive the wheel 30 of the electric bicycle B to rotate, so that the electric bicycle B moves.

Fig. 2 is an exploded view showing the aforementioned power supply device P. As shown in the figure, the power supply device P includes a battery holder 100, a battery module 200, and a plurality of locking elements 300. The battery holder 100 can be fixed in the housing 10 of the electric bicycle B by the locking element 300 And the battery module 200 can be detachably installed on the battery holder 100. The specific structure of the aforementioned elements will be described in detail below.

Referring to FIGS. 3A to 3C, the battery fixing base 100 mainly includes a first mounting table 110, a second mounting table 120, a first side plate 130, a second side plate 140, and a fixing mechanism 150.

The first mounting platform 110 has a surface 112 facing the second mounting platform 120, and the surface 112 is provided with a plurality of protrusions 113 and 114 protruding from the surface 112. The fixing mechanism 150 is set on the first mounting platform 110. When the battery module 200 is set on the battery fixing base 100, the fixing mechanism 150 can be used to fix the battery module 200. For example, in this embodiment, the fixing mechanism 150 may include a bolt 151, an elastic element 152, and a driving part 153, wherein the elastic element 152 can provide thrust in the -Y axis direction to the bolt 151 so that the bolt 151 is located In a locked position, the driving part 153 can rotate relative to the first mounting platform 110. As shown in Figure 3A, when the latch 151 is in the locked position, the latch 151 will protrude from the surface 112 of the first mounting platform 110, and when the driving portion 153 rotates relative to the first mounting platform 110, the latch 151 can be The driving part 153 drives and moves in the Y-axis direction relative to the first mounting table 110.

The second installation stand 120 has a connection terminal 121, and in this embodiment, the second installation stand 120 is further provided with a socket 122, and the socket 122 can be connected to the connection terminal 121 by a wire W.

The first side plate 130 connects the first installation table 110 and the second installation table 120, and the second side plate 140 also connects the first installation table 110 and the second installation table 120 on the opposite side. Therefore, the aforementioned connection terminal 121 will be located between the first side plate 130 and the second side plate 140. The first installation stand 110, the second installation stand 120, the first side plate 130 and the second side plate 140 may surround an accommodating space to accommodate the aforementioned battery module 200.

In particular, the first side plate 130 and the second side plate 140 are respectively formed with a first guide post 131 and a second guide post 141 adjacent to the second mounting table 120. The first guide post 131 extends toward the second side plate 140, the second guide post 141 extends toward the first side plate 130, and the positions of the first guide post 131 and the second guide post 141 correspond to each other.

In addition, the first side plate 130 and the second side plate 140 may respectively have a non-rectangular cross section on the XZ plane, thereby increasing the strength of the battery holder 100 to prevent the first side plate 130 or the second side plate 140 from being bent. In this embodiment, the first mounting platform 110 and the second mounting platform 120 of the battery holder 100 may be formed with a plurality of coupling holes H, and these coupling holes H are all located on the same side of the battery holder 100.

Please refer to FIGS. 4A and 4B. The aforementioned battery module 200 mainly includes a main body 210, an electrical connection portion 220, and an abutting portion 240. The aforementioned body 210 has a first surface 211, a second surface 212, a third surface 213, a fourth surface 214, and a top surface 215, wherein the first surface 211 is opposite to the second surface 212, and the third surface 213 Contrary to the fourth surface 214. The third surface 213 and the fourth surface 214 connect the first surface 211 and the second surface 212, and the top surface connects the aforementioned first, second, third, and fourth surfaces 211, 212, 213, and 214. The electrical connection portion 220 is disposed on the fourth surface 214, and the contact portion 240 is formed on the top surface 215.

As shown in FIG. 4C, a first guide groove 250 is formed on the first surface 211, and the first guide groove 250 has an arc segment 251 and a linear segment 252. One end of the linear segment 252 is connected to the arc segment 251, and the other end is connected to the fourth surface 214. It should be noted that the linear segment 252 does not extend in the tangential direction of the circular arc segment 251, so an obtuse or acute angle may be formed between the circular arc segment 251 and the linear segment 252. In this embodiment, the arc segment 251 and the linear segment 252 have approximately the same width, and the width of the arc segment 251 and the linear segment 252 are approximately equal to the diameter of the first guiding pillar 131.

As shown in FIG. 4D, a second guide groove 260 is also formed on the second surface 212, and the second guide groove 260 also has an arc segment 261 and a linear segment 262. One end of the linear segment 262 is connected to the arc segment 261, and the other end is connected to the fourth surface 214. Since the linear segment 262 does not extend from the tangential direction of the circular arc segment 261, an obtuse or acute angle may be formed between the circular arc segment 261 and the linear segment 262. In this embodiment, the arc segment 261 and the linear segment 262 have approximately the same width, and the width of the arc segment 261 and the linear segment 262 is approximately equal to the diameter of the second guiding pillar 141.

Figures 4E and 4F respectively show cross-sectional views along the A-A and B-B directions in Figure 4A. As shown in the figure, a concave hole 216 is formed on the third surface 213 of the battery module 200, and the battery module 200 may further include a sliding member 270, a movable member 280, and elastic members 290, 291. The sliding element 270 and the movable element 280 are connected to the main body 210 in a movable manner. The sliding element 270 can move in a first direction relative to the main body 210 and the movable element 280 can move in a second direction relative to the main body 210. In this embodiment, the first direction is substantially perpendicular to the second direction. At least a part of the sliding member 270 protrudes from the third surface 213 of the main body 210, and the protruding part has an inclined surface 271. The elastic members 290 and 291 may be compression springs, for example, wherein the elastic member 290 connects the body 210 and the movable part 280, and the elastic member 291 connects the body 210 and the sliding part 270.

The installation method and usage method of the power supply device P are described below. Please refer to Figure 5A. First, the user can put the battery holder 100 into the housing 10 of the electric bicycle B from an opening 11 on the housing 10. The locking element 300 (for example, a screw or rivet) can be worn Pass through the perforation 12 on the casing 10 and combine with the coupling holes H on the first installation stand 110 and the second installation stand 120 to fix the battery fixing base 100 in the casing 10. Wherein, the position of the socket 122 and the position of the driving part 153 of the battery holder 100 can correspond to the positions of the openings 13 and 14 on the casing 10 respectively, so that the socket 122 and the driving part 153 can be exposed by the openings 13 and 14 respectively.

It should be noted that, in this embodiment, the opening 11 and the perforation 12 on the housing 10 are formed on the same side of the housing 10, and opposite to a riding surface 15 of the housing 10 (the user rides on the electric When the bicycle B is on, the riding surface 15 faces the user). In this way, the aforementioned riding surface 15 can be kept intact without additional processing to facilitate the ride of the user.

Then, the user can combine the battery module 200 with the battery holder 100. Specifically, referring to FIGS. 5B and 5C, the first guide post 131 and the second guide post 141 of the battery holder 100 can enter the first guide groove 250 and the second guide groove through the linear segments 252 and 262, respectively. 260, and slide along the first guide groove 250 and the second guide groove 260 to a first position. Since the first guide groove 250 and the second guide groove 260 are symmetrical to each other in this embodiment, only the first guide groove 250 and the first guide post 131 are taken as examples below.

As shown in FIGS. 5B to 5F, when the first guide post 131 slides along the first guide groove 250, the battery module 200 can rotate in a clockwise direction with respect to the battery holder 100. When the slider 270 contacts the pin 151 of the fixing mechanism 150 (Figure 5B), the pin 151 has a slope 151a facing the opening 11, so it can be pushed and moved toward the first mounting table 110, and the battery module 200 can continue to face each other The battery holder 100 rotates clockwise.

As shown in Figure 5C, when the battery module 200 continues to rotate clockwise relative to the battery holder 100 and the sliding member 270 contacts the protrusion 113 of the first mounting table 110, because the sliding member 270 has an inclined surface 271, Therefore, it is pushed by the protrusion 113 to move in a direction away from the first mounting platform 110 relative to the main body 210. Thereby, the battery module 200 can continue to rotate relative to the battery holder 100. As shown in Figure 5D, when the battery module 200 rotates relative to the battery holder 100, the movable part 280 of the battery module 200 will contact the protrusion 114 of the second mounting table 120, and the movable part 280 will be able to be The protrusion 114 is pushed to move relative to the battery holder 100, and the elastic member 290 can be compressed accordingly.

As shown in Figures 5E and 5F, when the first guide post 131 slides to the first position, the electrical connection portion 220 of the battery module 200 will contact the connection terminal 121 of the battery holder 100, and the latch of the fixing mechanism 150 The 151 will be pushed by the elastic element 152 to return to its locked position and enter the recess 216 of the battery module 200.

Through the foregoing steps, the power supply device P can be installed in the housing 10 of the electric bicycle B, wherein the battery holder 100 is fixed to the housing 10, and the battery module 200 can be fixed to the battery holder 100 in a detachable manner on. The connection terminal 121 of the battery holder 100 can be electrically connected to the drive motor 20 of the electric bicycle B, so that the battery module 200 can supply power to the drive motor 20 via the electrical connection portion 220 and the connection terminal 121.

When the power of the battery module 200 is exhausted, the user can connect an external power source to the socket 122 to charge the battery module 200. Since the top surface 215 of the battery module 200 is exposed by the opening 11 of the casing 10, in some embodiments, the socket 122 can also be directly formed on the top surface 215 of the battery module 200.

When the battery module 200 needs to be repaired or removed, the user can separate the battery module 200 from the battery holder 100 through the following steps. First, referring to FIG. 6A, the user can rotate the driving part 153 to move the plug 151 to the left and leave the recessed hole 216 of the battery module 200. At this time, the elastic force of the elastic member 290 will cause the main body 210 to move relative to the movable part 280, the first guide post 131 will slide from the first position along the arc segment 261 to an intermediate position, and the battery module 200 will be relatively The battery holder 100 rotates around a first rotation axis R1. Since the first guide post 131 slides along the arc segment 261, the aforementioned first rotation axis R1 passes through the center of the arc segment 261 and is perpendicular to the first guide slot 250.

As shown in FIG. 6A, at this time, the sliding member 270 can contact the protruding portion 113 of the first mounting platform 110, so that the first guiding post 131 is fixed at the aforementioned intermediate position. The battery module 200 will not continue to rotate about the first rotation axis R1 relative to the battery holder 100 temporarily, so as to prevent the battery module 200 from falling directly on the ground.

Please refer to FIG. 6B. Then, the user can push the sliding member 270 to move the sliding member 270 relative to the main body 210. The interference between the sliding member 270 and the protrusion 113 can be released, the battery module 200 can continue to rotate relative to the battery holder 100 around the first rotation axis R1, and the first guide post 131 can follow the arc from the middle position The segment 261 slides to a second position.

The aforementioned second position is located at the junction of the arc segment 251 and the linear segment 252. Therefore, when the battery module 200 intends to continue to rotate relative to the battery holder 100, it should rotate around a second rotation axis R2, where the aforementioned The second rotation axis R2 passes through the connection of the circular arc segment 251 and the linear segment 252 and is perpendicular to the first guide groove 250.

As shown in FIG. 6B, when the first guide post 131 is located at the second position of the arc segment 261, the abutting portion 240 of the battery module 200 will contact the housing 10 of the electric bicycle B to block the battery module 200 intends to continue to rotate relative to the battery holder 100 around the second rotation axis R2. In this way, the battery module 200 cannot continue to rotate relative to the battery holder 100, but will stay at this angle, avoiding the risk of the battery module 200 falling. Finally, the user can move the first guide post 131 along the linear section 252 of the first guide groove 250 and leave the first guide groove 250 to separate the battery module 200 from the battery holder 100.

Please refer to FIG. 7. In the foregoing embodiment, the body 210 of the battery module 200 has at least two battery cell components 201 and a plurality of metal connection components 202 and 203 inside. Each battery cell assembly 201 may include a plurality of battery cells C, and the battery cells C may be connected in series with each other through the metal connection assembly 202. The battery core components 201 can be connected in series through the metal connection component 203. Specifically, as shown in FIG. 8A, the metal connection assembly 203 may include a first plate 204, a second plate 205, and at least one intermediate plate 206, wherein the intermediate plate 206 is located on the first plate 204 And the second board 205 and connect the two.

There is a first bending line L1 between the first plate 204 and the middle plate 206, and a second bending line L2 is between the second plate 205 and the middle plate 206. At least one notch L3 is formed on the middle plate 206, and the notch L3 is not parallel to the aforementioned first bending line L1 and the second bending line L2. In this embodiment, the first bending line L1 and the second bending line L2 are parallel to each other, and the notch L3 is perpendicular to the first bending line L1 and the second bending line L2.

When in use, one cell assembly 201A can be fixed on the first plate 204, and the other cell assembly 201B can be fixed on the second plate 205, and the first plate 204 and the second plate 205 can be separately It is electrically connected to one cell C in the cell assemblies 201A and 201B. Then, the user can bend the metal connecting component 203 along the first bending line L1 and the second bending line L2, so that the metal connecting component 203 can be deformed into the shape shown in FIGS. 7 and 8B.

Since the middle plate 206 has a notch L3, the middle plate 206 will not protrude outward after the metal connecting component 203 is bent, that is, the normal direction of the middle plate 206 can be substantially perpendicular to the first plate 204 The normal direction of the second plate 205 or the normal direction of the second plate 205 is beneficial to the miniaturization of the battery module 200.

Referring to Figure 9, in some embodiments of the present invention, each cell assembly 201 in the battery module 200 has an even number of cells C, so the cell C at one end of the cell assembly 201 is connected to the assembly 203 by metal. After the connection, the cell C at the other end also needs to be connected with a metal connection component 203'.

As shown in Figures 9 and 10, the metal connection component 203' includes a first plate 204', a second plate 205', and at least one intermediate plate 206', wherein the first plate 204' and the second plate 206' The board 205' can be fixed to the battery cell assembly 201A and the battery cell assembly 201B respectively, and can be electrically connected to one of the battery core assemblies 201A and 201B respectively.

The intermediate plate 206' may have a first section 2061' and a second section 2062'. The first section 2061' is connected to the first plate 204' and is integrally formed with the first plate 204', and the second section 2062' is connected to the second plate 205' and is integrally formed with the second plate 205'. A hole 208' is formed on the first section 2061', and a hook 209' is formed on the second section 2062'. After the metal connecting component 203 is bent, the first section 2061' and the second section 2062' of the middle plate 206' can be adjacent to and overlap each other, and the user can then pass the hook 209' through the hole 208' , So that the first segment portion 2061' and the second segment portion 2062' are combined in a snap-fit manner to form the intermediate plate body 206', and the connection between the cell assemblies 201 can be completed (as shown in FIG. 9).

Referring to FIG. 11, in another embodiment of the present invention, each cell assembly 201 in the battery module 200 also has an even number of cells C, but the arrangement of the cells C in the cell assembly 201 is different The battery module 200 in FIG. 9. As shown in FIG. 11, the aforementioned metal connection component 203' can also be used to connect adjacent battery cell components 201 in such a battery module 200.

In summary, the present invention provides a battery fixing seat, which includes a first installation stand, a second installation stand, a first side plate, and a second side plate. The second installation platform has a connection terminal, and the first side plate and the second side plate are connected to the aforementioned first installation platform and the second installation platform. Wherein, the connecting terminal is arranged between the first side plate and the second side plate, and both the first side plate and the second side plate have a non-rectangular cross section.

The present invention further provides a power supply device for an electric bicycle, which includes a battery fixing seat and a battery module. The battery fixing base is fixed on a shell of the electric bicycle, and includes a first installation stand, a second installation stand, a first side plate, and a second side plate. The second installation platform has a connection terminal, and the first side plate and the second side plate are connected to the aforementioned first installation platform and the second installation platform. Wherein, the connecting terminal is arranged between the first side plate and the second side plate, and the first side plate and the second side plate respectively have a first guide post and a second guide post. The first guide post extends toward the second side plate, and the second guide post extends toward the first side plate. The battery module is detachably arranged on the battery holder, and includes a body, an electrical connection part, a first guide groove, a second guide groove, and a contact part. The body has a first surface and a second surface, and the first surface is opposite to the second surface. The electrical connection part is arranged on the main body. The first guide groove is formed on the first surface, and the first guide column is slidably connected to the first guide groove, wherein the first guide groove has an arc segment and a linear segment connected to each other. The second guide groove is formed on the second surface, and the second guide post is connected to the second guide groove in a slidable manner. The abutting part is arranged on the body. When the first guiding column is located at a first position in the arc segment, the electrical connection part contacts the connection terminal. When the first guide column slides from the first position along the arc segment to a second position, the battery module rotates about a first rotation axis relative to the battery holder, wherein the second position is located at the arc segment and the linear segment Of the connection.

The present invention also provides a battery module, which includes at least two battery cell components and at least one metal connection component. The metal connection component is electrically connected to the aforementioned battery cell component, and includes a first plate body, a second plate body, and an intermediate plate body. The first board is connected to one of the aforementioned battery core components, and the second board is connected to the other of the aforementioned battery components. The middle plate body connects the first plate body and the second plate body, wherein the normal direction of the middle plate body is substantially perpendicular to the normal direction of the first plate body and the second plate body.

Although the embodiments of the present invention and its advantages have been disclosed as above, it should be understood that any person with ordinary knowledge in the technical field can make changes, substitutions and modifications without departing from the spirit and scope of the present invention. In addition, the scope of protection of the present invention is not limited to the manufacturing processes, machines, manufacturing, material composition, devices, methods and steps in the specific embodiments described in the specification. Anyone with ordinary knowledge in the technical field can disclose the content from the present invention. It is understood that the current or future developed processes, machines, manufacturing, material composition, devices, methods, and steps can be used according to the present invention as long as they can perform substantially the same functions or obtain substantially the same results in the embodiments described herein. Therefore, the protection scope of the present invention includes the above-mentioned manufacturing process, machine, manufacturing, material composition, device, method and step. In addition, each patent application scope constitutes an individual embodiment, and the protection scope of the present invention also includes each patent application scope and a combination of embodiments.

Although the present invention is disclosed in the foregoing several preferred embodiments, they are not intended to limit the present invention. Those with ordinary knowledge in the technical field to which the present invention pertains can make changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be subject to those defined by the attached patent application scope. In addition, the scope of each patent application constitutes an independent embodiment, and the combination of the scope of various patent applications and the embodiments falls within the scope of the present invention.

10: Shell

11: opening

12: Piercing

13: Opening

14: Opening

15: riding surface

20: Drive motor

30: Wheel

100: battery holder

110: The first mount

112: Surface

113: Projection

114: protruding part

120: second mount

121: Connection terminal

122: Socket

130: The first side panel

131: The second guide column

140: second side panel

141: The second guide column

150: fixed mechanism

151: Bolt

151a: Bevel

152: Elastic element

153: Drive

200: battery module

201, 201A, 201B: Cell components

202: Metal connection components

203, 203’: Metal connection components

204, 204’: The first board

205, 205’: The second board

206, 206’: Intermediate plate

2061’: First paragraph

2062’: The second paragraph

208’: Hole

209’: Card Go

210: body

211: First Surface

212: second surface

213: Third Surface

214: Fourth Surface

215: top surface

216: Hole

220: electrical connection

240: contact part

250: first guide groove

251: arc segment

252: linear segment

260: second guide groove

261: arc segment

262: linear segment

270: Slider

271: Slope

280: moving parts

290: Elastic member

291: Elastic member

300: locking element

B: Electric bicycle

C: Battery

H: Combination hole

L1: The first bending line

L2: Second bending line

L3: Notch

P: power supply device

R1: The first rotation axis

R2: second rotation axis

W: Wire

Figure 1 is a schematic diagram showing an electric bicycle according to an embodiment of the present invention. Figure 2 is an exploded view showing the power supply device of an embodiment of the present invention. FIG. 3A is a schematic diagram showing a battery holder in an embodiment of the present invention. FIG. 3B is a schematic diagram showing the battery holder in another view angle according to an embodiment of the present invention. Figure 3C is a top view of the battery holder in an embodiment of the present invention. FIG. 4A is a schematic diagram showing a battery module in an embodiment of the invention. FIG. 4B is a schematic diagram showing the battery module in an embodiment of the present invention from another perspective. Figure 4C is a left side view of the battery module in an embodiment of the present invention. Figure 4D is a right side view of the battery module in an embodiment of the present invention. Fig. 4E is a cross-sectional view taken along the direction A-A in Fig. 4A. Fig. 4F is a cross-sectional view taken along the direction B-B in Fig. 4A. FIG. 5A is a schematic diagram showing the battery holder set in the housing in an embodiment of the present invention. FIG. 5B is a schematic diagram showing a battery module contacting a pin in an embodiment of the present invention. Figure 5C is a schematic diagram showing the sliding member contacting the protrusion in an embodiment of the present invention. Fig. 5D is a schematic diagram showing another protrusion contacting the movable part in an embodiment of the present invention. FIG. 5E is a schematic diagram showing the first position of the first guide post on the first guide groove in an embodiment of the present invention. FIG. 5F is another schematic diagram showing the first guide post in the first position on the first guide groove in an embodiment of the present invention. Fig. 6A is a schematic diagram showing the middle position of the first guide post on the first guide groove in an embodiment of the present invention. FIG. 6B is a schematic diagram showing the second position of the first guide post on the first guide groove in an embodiment of the present invention. FIG. 7 is a schematic diagram showing the inside of the body of the battery module in an embodiment of the present invention. FIG. 8A is a schematic diagram showing a metal connection component in an embodiment of the present invention. Fig. 8B is a schematic diagram showing the deformed metal connecting component in an embodiment of the present invention. FIG. 9 is a schematic diagram showing the inside of the body of the battery module in another embodiment of the present invention. Fig. 10 is a schematic diagram showing a metal connection component in another embodiment of the present invention. FIG. 11 is a schematic diagram showing the inside of the main body of the battery module in another embodiment of the present invention.

10: Shell

11: opening

13: Opening

14: Opening

100: battery holder

200: battery module

300: locking element

Claims (16)

A battery fixing base includes: a first installation table; a second installation table with a connecting terminal; a first side plate connecting the first installation table and the second installation table; and a second side plate connecting the The first mounting table and the second mounting table, and the connecting terminal is arranged between the first side plate and the second side plate, wherein the first side plate and the second side plate both have a non-rectangular cross section, the first side plate There is a first guiding post extending towards the second side plate, and the second side plate has a second guiding post extending towards the first side plate. According to the battery holder described in item 1 of the scope of patent application, the battery holder further includes a fixing mechanism arranged on the first mounting platform. For the battery fixing seat described in item 2 of the scope of patent application, the fixing mechanism includes: a pin; an elastic element that provides a thrust to the pin so that the pin is located at a locked position; and a driving part capable of driving The plug moves relative to the first installation platform, wherein when the plug is located at the locked position, the plug protrudes from a surface of the first installation platform. According to the battery holder described in item 3 of the scope of patent application, the first mounting platform further includes a plurality of protrusions protruding from the surface of the first mounting platform. According to the battery fixing seat described in item 1 of the scope of patent application, the first guide post and the second guide post are adjacent to the second mounting platform. According to the battery holder described in item 1 of the scope of patent application, the battery holder further includes a socket and at least one wire, wherein the wire connects the socket and the connecting terminal. A power supply device for an electric bicycle includes: a battery fixing seat fixed on a housing of the electric bicycle, the battery fixing seat including: a first mounting table; a second mounting table with a connecting terminal; A side plate connecting the first installation table and the second installation table; and a second side plate connecting the first installation table and the second installation table, and the connecting terminal is arranged on the first side plate and the second side plate Between, wherein the first side plate has a first guide post extending toward the second side plate, and the second side plate has a second guide post extending toward the first side plate; and a battery module to It is detachably arranged on the battery holder and includes: a body having a first surface and a second surface, wherein the first surface is opposite to the second surface; and an electrical connection part is arranged on the body On; a first guide groove is formed on the first surface, and the first guide post is slidably connected to the first guide groove, wherein the first guide groove has a circular arc segment connected to each other and A linear segment A second guide groove is formed on the second surface, and the second guide post is slidably connected to the second guide groove; and an abutment portion is provided on the body, wherein when the first When the guiding column is located at a first position in the arc segment, the electrical connection portion contacts the connecting terminal, and when the first guiding column slides from the first position along the arc segment to a second position At this time, the battery module rotates around a first rotation axis relative to the battery holder, and the second position is located at the connection between the circular arc segment and the linear segment. For the power supply device described in item 7 of the scope of patent application, when the first guide post is located at the second position, the abutting portion contacts the housing to prevent the battery module from winding around the battery holder The second rotation axis rotates, wherein the first rotation axis is different from the second rotation axis. The power supply device described in item 8 of the scope of patent application, wherein the second rotation axis is perpendicular to the first guide groove and passes through the connection between the arc segment and the linear segment. In the power supply device described in item 7 of the scope of patent application, the first rotation axis is perpendicular to the first guide groove and passes through the center of the arc segment. For the power supply device described in item 7 of the scope of patent application, the battery fixing base further includes a fixing mechanism, and the body further includes a recessed hole, wherein when the first guiding post is located at the first position, the fixing A bolt of one of the mechanisms enters the recessed hole. As for the power supply device described in claim 11, the battery module further includes a movable part and an elastic member, the elastic member connects the movable part and the body, and the first mounting platform further includes a protrusion Part, wherein when the first guiding post is located at the first position, the protruding part contacts and pushes the movable part, and the elastic member is pressed Shrink. As for the power supply device described in claim 12, the battery module further includes a sliding member movably connected to the main body, and the first mounting table further includes another protruding part, wherein the plug When leaving the hole, the elastic member moves the body relative to the movable part, the first guide post slides from the first position along the arc to an intermediate position, and the sliding part contacts the other protrusion unit. The power supply device described in item 12 of the scope of patent application, wherein the sliding member can move in a first direction relative to the main body, and the movable member can move in a second direction relative to the main body, wherein the first direction Generally perpendicular to the second direction. According to the power supply device described in item 7 of the scope of patent application, the housing has an opening, and when the first guiding column is located at the second position, the battery module protrudes from the opening. As for the power supply device described in claim 15, wherein the power supply device further includes a plurality of locking elements, and a plurality of perforations are formed on the housing, wherein the locking elements pass through the perforations and are connected to the battery The fixing seat is combined, and the through holes and the opening are formed on the same side of the shell.

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