Electronic seat tube for electric-assisted bicycle

Abstract

The utility model relates to an electronic seat tube for an electric auxiliary bicycle. The electronic seat tube comprises an outer tube, an inner tube, a lifting component and a wireless control module, the inner tube is arranged in the outer tube in a vertically displaceable manner. The lifting assembly is assembled on the inner pipe and provided with a valve body, a valve piece assembled on the valve body and a control motor connected with the valve piece. The wireless control module is provided with a protection piece and a wireless unit arranged in the protection piece, and the wireless unit is electrically connected to the control motor of the lifting assembly. Wherein the electric auxiliary bicycle is provided with a power assisting device and a bracket, the power assisting device is arranged on the bracket, the wireless control module is accommodated between the power assisting device and the bracket so as to maintain smooth signal transmission, and the wireless unit can be prevented from being damaged due to moisture or collision.

Description

TECHNICAL FIELD

[0001] The utility model relates to electronic seat tube for electrically assisted bicycle, electronic seat tube for electrically assisted bicycle, wireless control module for controlling electronic seat tube lifting is arranged in the area that can receive control signal smoothly, wireless control module is covered again, prevents wireless control module damage. BACKGROUND

[0002] Electrically assisted bicycle provides human power or electric drive mode, rider can choose to drive electrically assisted bicycle by pedaling, or use motor to provide different levels of power assistance, to reduce the physical burden of the rider and improve the riding distance, achieve the purpose of sports fitness and tourism, therefore, it is loved by modern riders. The existing electrically assisted bicycle is usually divided into middle motor or hub motor, wherein, the middle motor integrates the motor and the pedaling assembly in the five-way pipe part of the bicycle frame, and the motor is fixed by the motor bracket, so as to maintain the complete and beautiful appearance of the electrically assisted bicycle, and improve the stability and convenience of riding.

[0003] Furthermore, in order to have a comfortable riding posture, the seat tube can provide lifting adjustment at present, and the general electrically assisted bicycle mainly uses electronic wire control device to control the air pressure valve or hydraulic valve of the seat tube. When the valve is opened, the seat cushion is pressed downward to lower the seat tube, or the seat tube is automatically lifted to the original height. Taiwan patent publication No. I671226 and No. I719576 provide the structure of electric seat rod assembly, which sets the electric device with wireless receiver on the periphery of the electric seat tube, and is covered by the cover plate, only the light emitting element for indicating the electric quantity is exposed.

[0004] From the prior art patent, the electronic elements of the electronic seat tube are arranged on the outside of the frame, which needs to be covered by additional shielding structure to prevent rain or sand from directly contacting the electronic elements, so as to avoid the electronic elements from being damaged due to moisture or collision. However, in order to expose some functions of the electronic elements to the rider for viewing, the connection between multiple element assemblies is easy to cause water vapor to penetrate, and the long-term accumulation of water vapor in the shielding structure will cause the electronic elements to be short-circuited and damaged due to moisture. Therefore, how to simplify the structure of the electronic seat tube of the electrically assisted bicycle to reduce the need for additional shielding structure is the direction of the inventor's thinking. UTILITY MODEL CONTENTS

[0005] In view of the above-mentioned existing electronic seat tube still has many defects, the main purpose of the utility model is to provide an electronic seat tube for electrically assisted bicycle, which sets the electronic elements of the electronic seat tube in a position with smooth signal transmission and reception, and can save the trouble of additional shielding structure.

[0006] To achieve the above main purpose, the utility model discloses an electronic seat tube for electrically assisted bicycle, it includes a outer tube, a inner tube, a lifting assembly and a wireless control module. The inner tube can be arranged in the outer tube and can be displaced up and down. The lifting assembly is arranged in the inner tube, which has a valve body, a valve element arranged in the valve body and a control motor connected with the valve element. The control motor drives the valve element to operate, and the valve element controls the opening and closing of the valve body. The wireless control module has a protection element and a wireless unit arranged in the protection element. The wireless unit is electrically connected to the control motor of the lifting assembly. The electrically assisted bicycle has a power assisting device and a bracket. The power assisting device is arranged in the bracket, and the wireless control module is accommodated between the power assisting device and the bracket.

[0007] Through the above technical features, the wireless control module of the electronic seat tube is directly arranged between the power assisting device and the bracket. The electrically assisted bicycle originally has the power assisting device. The area between the power assisting device and the bracket is used to accommodate the wireless control module. Therefore, no additional shielding structure is needed to accommodate the wireless control module, and the wireless control module can smoothly receive control signals. In addition, the wireless unit of the wireless control module is arranged in the protection element to prevent the wireless unit from being exposed to the external environment. The wireless unit can be protected in a waterproof and dustproof environment, prolonging the service life of the wireless control module.

[0008] Preferably, the power assisting device has a power module and a transmission module connected to the power module. In this way, the power module and the transmission module can output auxiliary power, which is transmitted to the pedals stepped by the user through the transmission module.

[0009] Preferably, the wireless control module is further located in a containing space between the power module, the transmission module and the bracket. In this way, the area between the power module, the transmission module and the bracket is used as a containing space, effectively utilizing the space originally used to arrange the power module and the transmission module of the electrically assisted bicycle, and avoiding the trouble of structural change.

[0010] Preferably, the containing space is an area outside the action range of the power module and the transmission module of the electrically assisted bicycle. Since the power module transmits power to the transmission module within a fixed action range, the area outside the action range can be used as a containing space to accommodate the wireless control module, allowing the wireless control module to smoothly transmit and receive control signals.

[0011] Preferably, the wireless unit of the wireless control module is a Bluetooth receiver and a controller electrically connected to the Bluetooth receiver. In this way, the Bluetooth receiver is used to receive the control signal of the operating rod for operating the lifting of the seat tube, and the control signal is transmitted to the controller to drive the opening and closing of the valve element of the seat tube, realizing the function of adjusting the height of the seat tube.

[0012] Preferably, the protective member of the wireless control module is made of industrial foam or rubber material to cover the wireless unit. In this way, the protective member is made of material with waterproof and dustproof properties to prevent the wireless unit covered thereby from being exposed to water vapor and mud, thereby prolonging the service life of the wireless control module and maintaining good signal transmission and reception functions.

[0013] Preferably, the power-assisted device has a side cover to close the gap between the power-assisted device and the bracket. In this way, the side cover can prevent the power module and the transmission module from being exposed to the external environment, and also provides an additional layer of protection for the wireless control module.

[0014] The detailed structure, features, assembly or use of the electronic seat tube for the electrically assisted bicycle provided by the present application will be described in the following detailed description of the embodiments. However, those skilled in the art should understand that the detailed description and the specific examples of the embodiments of the present application are only used to illustrate the present application, and are not used to limit the scope of the patent application of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 is a perspective view of the present application;

[0016] Fig. 2 is a partial cross-sectional view of the present application, showing part of the structure of the electronic seat tube;

[0017] Fig. 3 is a perspective view of the electrically assisted bicycle of the present application; and

[0018] Fig. 4 is a cross-sectional view of the present application, showing the position of the wireless control module.

[0019] BRIEF DESCRIPTION OF DRAWINGS

[0020] 10: electrically assisted bicycle

[0021] 20: electronic seat tube

[0022] 21: outer tube

[0023] 22: inner tube

[0024] 221: seat cushion fixing seat

[0025] 23: lifting assembly

[0026] 231: valve

[0027] 232: control motor

[0028] 24: wireless control module

[0029] 241: protective member

[0030] 242: Wireless Unit

[0031] 30: Chassis Structure

[0032] 31: Bracket

[0033] 32: Front tube

[0034] 33: Top tube

[0035] 34: Lower pipe

[0036] 35: Central tube

[0037] 36: Rear fork assembly

[0038] 37: Battery fixing part

[0039] 40: Power Module

[0040] 41: Shell

[0041] 42: Side Cover

[0042] 50: Transmission Module

[0043] 51: Transmission mechanism

[0044] 52: Crankshaft

[0045] 60: Storage space Detailed Implementation

[0046] The applicant first clarifies that in the embodiments and accompanying drawings described below, the same reference numerals denote the same or similar elements or their structural features. It should be noted that the elements and structures in the drawings are for illustrative purposes and are not drawn to scale or in quantity; features of different embodiments may be used interchangeably if feasible in practice. Secondly, when it is stated that an element is disposed on another element, it means that the aforementioned element is directly disposed on the other element, or that the aforementioned element is indirectly disposed on the other element; that is, one or more other elements are disposed between the two elements. Conversely, when it is stated that an element is "directly" disposed on another element, it means that no other elements are disposed between the two elements.

[0047] See Figs. 1 to 4 The electronic seatpost 20 of this utility model for an electric-assisted bicycle 10 mainly includes an outer tube 21, an inner tube 22, a lifting assembly 23, and a wireless control module 24. The electric-assisted bicycle 10 mainly includes a frame structure 30 and an assist device, which has a power module 40, a transmission module 50, and a housing space 60.

[0048] The inner tube 22 is disposed in the outer tube 21, and a cushion fixing seat 221 is assembled at the top end of the inner tube 22, and the bottom end is assembled with the outer tube 21, and the inner tube 22 can be adjusted to rise and fall when the lifting assembly 23 is opened, so that the inner tube 22 moves up and down along the outer tube 21.

[0049] The lifting assembly 23 is assembled in the inner tube 22, and the lifting assembly 23 has a valve body, a valve piece 231 and a control motor 232, the valve piece 231 is disposed in the valve body, and the control motor 232 is connected to one end of the valve piece 231 through a shaft, and the valve piece 231 is driven by the control motor 232 through the shaft to move up and down in the valve body, so that the valve piece 231 controls the opening and closing of the valve body. Among them, the valve body generally has two oil chambers or two air chambers for fluid flow, when the valve body is in the open state, the fluid flows in different oil chambers or air chambers to achieve the function of changing the height of the inner tube 22.

[0050] The wireless control module 24 has a protection piece 241 and a wireless unit 242, and the wireless control module 24 is received in the accommodation space 60. The protection piece 241 of the wireless control module 24 is made of industrial foam or rubber material, and the wireless unit 242 is a Bluetooth receiver and a controller electrically connected to the Bluetooth receiver, and the controller is electrically connected to the control motor 232 of the lifting assembly 23. The control signal received by the Bluetooth receiver is first transmitted to the controller, and the controller drives the control motor 232 of the lifting assembly 23 according to the control signal. The wireless unit 242 is arranged in the protection piece 241, so that the wireless unit 242 is covered by the protection piece 241, so that the moisture and sand in the external environment cannot easily contact the wireless unit 242, thereby reducing the probability of damage to the wireless unit 242.

[0051] The frame structure 30 can have a bracket 31, a front tube 32, an upper tube 33, a lower tube 34, a middle tube 35, a rear fork group 36 and a battery fixing part 37. The bracket 31 is arranged at one end of the lower tube 34, the middle tube 35 and the rear fork group 36, the front tube 32 connects the other end of the lower tube 34 and one end of the upper tube 33, the middle tube 35 connects the other end of the upper tube 33 and the other end of the rear fork group 36, the electronic seat tube 20 is disposed in the middle tube 35, and the battery fixing part 37 is arranged at the lower tube 34. Among them, the front fork stand and the handlebar group are fixed on the front tube 32 respectively, the front wheel group is fixed on the front fork stand, the rear wheel group is fixed on the rear fork group 36, and a battery is installed on the battery fixing part 37, and the battery is electrically connected to the control motor 232 of the wireless control module 24 to assemble the electrically assisted bicycle 10.

[0052] The power module 40 of the assisting device may, for example, have a housing 41, a side cover 42 and a middle motor assembly. The housing 41 is fixed on the bracket 31, the middle motor assembly is fixed in the housing 41, and the side cover 42 is installed to close the gap between the assisting device and the bracket 31, so as to avoid exposure of the middle motor assembly. The middle motor assembly receives power from the battery of the battery fixing portion 37 to start and output auxiliary power.

[0053] The transmission module 50 of the assisting device may, for example, have a transmission mechanism 51 and a crank shaft 52. The transmission mechanism 51 is accommodated in the housing 41 of the power module 40, and the transmission mechanism 51 may, for example, be a gear or a plurality of gears, which is engaged with a speed reducer of the middle motor assembly, and is directly or indirectly connected to the crank shaft 52 on which a pedal is installed. In this way, the auxiliary power output by the middle motor assembly is transmitted to the crank shaft 52 through the speed reducer and the gear, and the middle motor assembly and the transmission mechanism 51 have a fixed action range. The area outside the action range in the housing 41 defines a containing space 60, so that the wireless control module 24 can be accommodated in the containing space 60 and at the same time be located in the housing 41. The two-layer protection effect can be achieved through the protection member 241 and the side cover 42.

[0054] When the rider rides the electrically assisted bicycle 10, the handlebar-mounted operating rod in the embodiment is connected to a Bluetooth transmitter. The action of the operating rod is converted into a control signal, which is transmitted to the Bluetooth receiver of the wireless unit 242 of the wireless control module 24 through the Bluetooth transmitter. The containing space 60 is a signal-unblocked position, so that the wireless unit 242 can successfully receive the control signal. The Bluetooth receiver transmits the control signal to the controller, which outputs an action signal to the control motor 232 of the lifting assembly 23 according to the control signal. The control motor 232 starts to act and directly or indirectly drives the valve member 231, thereby controlling the opening and closing of the valve body, so that the rider can freely adjust the height of the electronic seat tube 20.

[0055] In summary, the electronic seat tube 20 for the electrically assisted bicycle 10 provided by the utility model sets the wireless control module 24 of the electronic seat tube 20 between the assisting device and the bracket of the electrically assisted bicycle 10, effectively utilizes the area where the assisting device is installed, and can not additionally set a shielding structure for the wireless control module 24, thereby saving the cost of changing the structure. The wireless unit 242 achieves the effects of waterproofing and dustproofing due to the protection member 241, and can avoid damage of the wireless unit 242 due to moisture or collision. Compared with the prior art, the utility model has the advantages of low cost and long service life.

Claims

1. An electronic seat tube for an electrically assisted bicycle, characterized in that, The electrically assisted bicycle comprises a power assisting device installed on a bracket of the electrically assisted bicycle, the electronic seat tube comprises: an outer tube; an inner tube, which is arranged in the outer tube in an up-down displacement manner; a lifting assembly, which is arranged in the inner tube and has a valve body, a valve element arranged in the valve body, and a control motor connected to the valve element, the control motor drives the valve element to act, so that the valve element controls the opening and closing of the valve body; and a wireless control module, which is accommodated between the power assisting device and the bracket, the wireless control module has a protective element and a wireless unit arranged in the protective element, the wireless unit is electrically connected to the control motor of the lifting assembly.

2. The electronic seatpost for an electrically assisted bicycle of claim 1, wherein, The power assisting device has a power module and a transmission module connected to the power module.

3. The electronic seatpost for an electrically assisted bicycle of claim 2, wherein, The wireless control module is further located in a containing space between the power module, the transmission module and the bracket.

4. The electronic seatpost for an electrically assisted bicycle of claim 3, wherein, The containing space is a region outside the action range of the power module and the transmission module of the electrically assisted bicycle.

5. The electronic seatpost for an electrically assisted bicycle of claim 1, wherein, The wireless unit of the wireless control module is a Bluetooth receiver and a controller electrically connected to the Bluetooth receiver.

6. The electronic seatpost for an electrically assisted bicycle of claim 1, wherein, The protective element of the wireless control module is made of industrial foam or rubber material and covers the wireless unit.

7. The electronic seatpost for an electric assist bicycle of claim 1, wherein, The power assisting device has a side cover, which can close the gap between the power assisting device and the bracket.

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