TWM591069U - Motor support assembly of electrically assisted bicycle - Google Patents

Abstract

This creation describes a motor bracket assembly of an electric power-assisted bicycle, which includes a frame structure, a driving device and a cushion. A bracket is provided at the bottom of the frame structure, and the bracket has a mounting slot and a first electrical connector disposed in the mounting slot. The driving device includes a housing, a motor and a second electrical connector. The housing has a mounting seat, the motor is provided in the housing, the second electrical connector is provided in the mounting seat and is electrically connected to the motor, and the housing is detachably inserted into the mounting groove of the bracket via the mounting seat so that the first and the first The two electrical connectors can form electrical conduction. The cushion pad is made of an elastic and flexible material, wherein the cushion pad is disposed between the mounting groove and the mounting seat. Through the cushion pad, the docking correction of the first and second electrical connectors can be achieved, ensuring the reliability of the electrical connection.

Description

Motor bracket assembly of electric assist bicycle

This creation is about the electric power-assisted bicycle, especially a motor bracket assembly for the electric power-assisted bicycle.

In order to avoid the interference between the motor of the electric power-assisted bicycle and other components (such as wheels, large chainrings, chains or transmissions) during installation, the current design usually fixes the motor to the bicycle bracket. In addition, in order for the motor or other electronic instruments to operate smoothly during riding, the electric power-assisted bicycle must use an external battery box as the main source of power. As for the installation position of the external battery box, it is generally fixed on the frame, and an electrical connector must be provided on the frame to electrically connect the battery box, so that when the motor is inserted into the frame, the motor can pass through it at the same time. The knife gate structure and the electrical connector of the frame are electrically connected to the battery box, so that the motor can use the power of the battery box and operate normally.

However, traditional motors are fixed to the frame by screwing. During the screwing process, vertical or lateral force may be applied to the motor. This force may cause the knife gate structure. The deviation in position between the two and the electrical connector may even cause the knife gate structure to buckle the electrical connector, causing the motor to fail due to its inability to electrically connect the battery case.

The invention patent known as US Publication No. US2012049483A1 describes an electric power-assisted bicycle, which includes a motor 142 and a bracket 140. The motor 142 has a connector male end 258, and the connector male end 258 is fixed to the bracket bearing 268, to connect with the female end 264 of the connector in the seat tube. As mentioned in the previous paragraph, during the process of docking the motor 142 with the female connector 264, the male connector 258 may buckle the female connector 264.

In view of this, one of the purposes of this creation is to improve the lack of the existing technology, and to provide a motor bracket assembly of an electric assist bicycle, so that the bicycle driving device and the electrical connection of the frame structure can form a good Electrical connection.

According to an embodiment of the present invention, a motor bracket assembly of an electric power-assisted bicycle includes: a frame structure, a driving device, and a cushion. A bracket is provided at the bottom of the frame structure. The bracket has a mounting slot and a first electrical connector, and the first electrical connector is disposed in the mounting slot. The driving device is disposed on the bracket and includes a housing, a motor and a second electrical connector. The housing has a mounting seat, the motor is provided in the housing, and the second electrical connector is provided in the mounting seat to electrically connect the motor. The housing can be detachably inserted into the mounting groove of the frame structure through the mounting seat to make The first electrical connector and the second electrical connector can form electrical conduction. The cushion pad is made of an elastic and flexible material, wherein the cushion pad is disposed between the mounting groove and the mounting seat.

In this way, when the rider wants to install the drive device on the bracket of the frame structure, even during the installation process, even if the drive device is slightly offset relative to the bracket during the installation process, the buffer member can provide a moderate buffer The effect is to achieve the docking correction of the first and second electrical connectors, ensuring the reliability of the electrical connection.

In one aspect, the first electrical connector is a female connector and the second electrical connector is a male connector (for example, a knife gate structure), but this creation is not limited to this. In other cases, the first electrical connector may be a male connector and the second electrical connector may be a female connector.

On the other hand, the cushion is ring-shaped and surrounds the outer wall of the mounting base, or even completely surrounds the outer wall of the mounting base. For the deviation of the driving device in different directions (left-right or front-back), the cushion can play Good buffering effect.

In another aspect, the mounting groove is provided with a plurality of first positioning portions, and the outer wall of the mounting seat is provided with a plurality of second positioning portions, so that the housing can be stabilized by the second positioning portions and the first positioning portions Fix to the bracket.

In order to explain the technical characteristics of this creation in detail, the following examples are given in conjunction with the schematic description as follows, in which:

As shown in FIGS. 1 to 3, the motor bracket assembly 1 provided in the embodiment includes a frame structure 10, a driving device 20 and a cushion 30.

Please refer to FIG. 2. The frame structure 10 includes a front tube 11, a tube 12 and a pair of rear forks 13 connected to each other, and a lower tube 14 and a bracket 15. The lower tube 14 is connected to the front tube 11 and the bracket 15. Located at the bottom of the frame structure 10, the down tube 14, the seat tube 12 and the pair of rear forks 13 are connected to the bracket 15 in common. The lower tube 14 is provided with a battery box fixing groove 141, and a battery box B is fixed to the battery box fixing groove 141. As shown in FIGS. 4 and 6, the bottom surface of the bracket 15 is provided with a mounting slot 152, a slot 16 and six lateral through holes 153. Two first positioning portions 154 are provided on the left side of the mounting groove 152 and one first positioning portion 154 is provided on both the front and rear sides (therefore, the total number of first positioning portions 154 is four), each first positioning portion 154 is essentially a screw hole structure. The slot 16 communicates with the interior of the battery box fixing slot 141 and the mounting slot 152. The mounting slot 152 is provided with a first electrical connector 155, the first electrical connector 155 is a female connector, and the first electrical connector 155 is electrically connected to a A group of wires W, the group of wires W is electrically connected to the battery box B through the slot 16, so that the first electrical connector 155 can be electrically connected to the battery box B.

Please refer to Figure 2 and Figure 3. The driving device 20 is used to drive a crankshaft 21 to output an auxiliary power. Structurally, the driving device 20 is disposed below the bracket 15 and includes a housing 22, a motor 23 and a second electrical connector 24. The housing 22 has a mounting base 221 and six lateral screw holes 222, the lateral screw holes 222 and the lateral through holes 153 correspond one-to-one, so that the housing 22 and the bracket 15 can pass through the lateral The hole 153 is integrated with the lateral screw holes 222 by screwing. The motor 23 is provided in the housing 22 and connected to the crank shaft 21, so that the motor 23 can output auxiliary power to drive the crank shaft 21 to rotate. In this embodiment, the second electrical connector 24 is a knife gate structure. The second electrical connector 24 is provided on the mounting base 221 and electrically connected to the motor 23. The housing 22 is detachably inserted into the bracket through the mounting base 221 The mounting groove 152 of FIG. 15 enables the first electrical connector 155 and the second electrical connector 24 to form electrical conduction, so that the motor 23 can use the power of the battery box B to operate normally.

In order to allow the mounting base 221 of the driving device 20 to be more firmly fixed to the mounting slot 152 of the bracket 15 so that the first electrical connector 155 can maintain a state of accurately docking with the second electrical connector 24, the present embodiment allows the mounting base 221 The cross section is substantially rectangular, so that the mounting base 221 has a left side wall 223, a right side wall 224, a front side wall 225 and a rear side wall 226, and two second positioning portions are provided on the left side wall 223 at intervals 227, and the front side wall 225 and the rear side wall 226 are each provided with a second positioning portion 227 (therefore the total number of second positioning portions 227 is four), each second positioning portion 227 is substantially a through-hole structure, the first The two positioning portions 227 correspond to the first positioning portions 154 in a one-to-one correspondence, so that the housing 22 can be locked by screws through the second positioning portions 227 and the first positioning portions 154固定于架15。 Fixed to the bracket 15.

Please refer to Figure 3, Figure 5 and Figure 6. The cushion 30 is made of an elastic and flexible material. In this embodiment, the cushion 30 is annular and completely surrounds and contacts the outer wall of the mounting base 221, and the cushion 30 is disposed in the mounting groove 152 and Between the mounting seats 221. Two openings 31 are provided on the left side of the cushion pad 30, and the cushion pad 30 passes through the two openings 31 to span the two second positioning portions 227 located on the left side wall 223 of the mounting seat 221.

Through the structural design of the motor bracket assembly 1 described above, when the rider installs the drive device 20 to the bracket 15 using the screw locking method, if the rider uses the screw to lock the left (or right) side The lateral screw hole 222 may cause the horizontal deviation of the drive device 20 with respect to the bracket 15 to the left or right at the moment. Through the elasticity and flexibility of the cushion 30, the cushion 30 provides The buffering effect can moderately compensate for the horizontal deviation of the second electrical connector 24 relative to the first electrical connector 155 during the locking process, to avoid problems such as squeezing or pin damage. On the other hand, when the rider uses screws to lock the first and second positioning members 154, 227, the cushion 30 also provides a moderate cushioning effect to compensate for the second electrical connector 24 relative to the first electrical connection during the locking process The vertical offset of the device 155.

The embodiments listed above are used to clarify the possible implementation forms of this creation. This creation is not limited to the implementation forms exemplified above. Any modification and changes to the scope of the ideas disclosed in this creation are still done. Should belong to the scope of this creation.

Prior art

140‧‧‧Bracket

142‧‧‧Motor

258‧‧‧Male connector

268‧‧‧Bracket seat

264‧‧‧Connector female

Examples

1‧‧‧Motor bracket assembly

10‧‧‧frame structure

11‧‧‧Front tube

12‧‧‧ Seatpost

13‧‧‧Back fork

14‧‧‧ down tube

141‧‧‧ Battery box fixing groove

15‧‧‧Bracket

151‧‧‧ Battery box fixing groove

152‧‧‧Mounting slot

153‧‧‧Horizontal through hole

154‧‧‧First Positioning Department

155‧‧‧The first electrical connector

20‧‧‧Drive

21‧‧‧Crankshaft

22‧‧‧Housing

221‧‧‧Mounting seat

222‧‧‧Horizontal screw hole

223‧‧‧Left side wall

224‧‧‧Right side wall

225‧‧‧front wall

226‧‧‧ Rear wall

227‧‧‧Second Positioning Department

23‧‧‧Motor

24‧‧‧Second electrical connector

30‧‧‧ cushion

B‧‧‧Battery box

W‧‧‧Wire

The detailed structure, characteristics, assembly or use of the motor bracket assembly for electric assist bicycles will be described in the following embodiments, however, it should be understood that the embodiments and drawings to be described below are only for Illustratively, it should not be used to limit the scope of patent applications for this creation, where:

FIG. 1 is a perspective view of the motor frame assembly of this creative embodiment; Figure 2 is an exploded view of Figure 1; Figure 3 is a partially exploded view of Figure 1; 4 is another perspective view of the bracket of the embodiment; FIG. 5 is a top view of the driving device of the embodiment; and 6 is a partial cross-sectional view of the motor frame assembly of the embodiment.

1‧‧‧Motor bracket assembly

10‧‧‧frame structure

20‧‧‧Drive

Claims (9)

A motor bracket assembly of an electric assist bicycle includes: a frame structure, a bracket at the bottom, the bracket has a mounting groove and a first electrical connector, the first electrical connector is provided on the mounting In the slot; a driving device, which is arranged on the bracket and comprises a casing, a motor and a second electrical connector, the casing has a mounting seat, the motor is arranged in the casing, and the second electrical connector It is provided on the mounting base and electrically connected to the motor. The housing is detachably inserted into the mounting groove of the bracket through the mounting base so that the first electrical connector and the second electrical connector can form electrical conductance Through; a cushion, made of elastic and flexible materials, the cushion is provided between the mounting groove and the mounting seat. The motor bracket assembly of an electric power-assisted bicycle according to claim 1, wherein the cushion pad is in a ring shape and surrounds the outer wall of the mounting seat. The motor bracket assembly of the electric assist bicycle according to claim 2, wherein the cushion pad completely surrounds the outer wall of the mounting seat. The motor bracket assembly of the electric power-assisted bicycle according to claim 1, wherein the mounting groove is provided with a plurality of first positioning portions, the outer wall of the mounting seat is provided with a plurality of second positioning portions, and the housing can pass through the The second positioning portion and the first positioning portion are fixed to the bracket. The motor bracket assembly of an electric power-assisted bicycle according to claim 4, wherein the cross-section of the mounting base is generally rectangular, so that the mounting base has a left side wall, a right side wall, a front side wall and a right side wall , One of the second positioning portions is provided on the left side wall or the right side wall, the slow-moving cushion is ring-shaped, the cushion also has an opening, the cushion is around the outer wall of the mounting seat and the The cushion pad crosses the second positioning portion located on the left side wall or the right side wall through the opening. The motor bracket assembly of the electric assist bicycle according to claim 5, wherein the number of the second positioning parts is four, two of the second positioning parts are provided on the left side wall, and the first The other two of the two positioning portions are respectively provided on the front side wall and the rear side wall. According to the motor bracket assembly of any one of claims 5-6, each of the first positioning parts has a screw hole structure, and each of the second positioning parts has a through hole structure, and the The screw holes correspond to the through holes in one-to-one correspondence. The motor bracket assembly of an electric power-assisted bicycle according to claim 1, wherein the bracket further includes a plurality of lateral through holes, and the housing further includes a plurality of lateral screw holes, the lateral through holes and the The screw holes are in one-to-one correspondence, so that the housing and the bracket can be integrated into one body through the lateral through holes and the lateral screw holes in a screw-locking manner. The motor bracket assembly of an electric power-assisted bicycle according to claim 1, wherein the second electrical connector is a knife gate structure.

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